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Accueil du site > Présentation > Productions scientifiques

Publications 2015

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PUBLICATIONS 2015 - LRGP

[hal-01571104] Projet Mentor: Livrable 28. Rapport d'avancement de la tâche 5

1er août 2017

Dans ce rapport, nous traiterons les données en continu sur le site de Place de la Bonde. Ces données concernent les hauteurs et vitesses pour le calcul des débits et les paramètres de qualité des eaux résiduaires tels que la température, le pH, la conductivité et la turbidité. Nous allons également (...)

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[hal-01267387] Metallo-Solid Lipid Nanoparticles as Colloidal Tools for Meso-Macroporous Supported Catalysts

2 juin 2017

Mesomacroporous silica containing iron oxide nanoparticles (15-20 nm) was synthesized by formulating solid lipid nanoparticles and metallosurfactant as both template and metal source. Because of the high active surface area of the catalyst, the material exhibits an excellent performance in a (...)

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[hal-01523136] Polymer Recycling and Additive Manufacturing in an Open Source context: Optimization of processes and methods

16 mai 2017

Polymer recycling is a way to reduce environmental impacts of accumulation of polymeric waste materials. However, low recycling rates are often observed in conventional centralized recycling plants mainly to the challenge of collection and transportation for high-volume low-weight-polymers in (...)

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[hal-01522506] Reverse logistics network design for a biogas plant: An approach based on MILP optimization and Analytical Hierarchical Process (AHP)

15 mai 2017

Among sustainable energy production processes, methanation (anaerobic co-digestion) has a high potential to valorize organic residual waste by exploiting its energetic capacities in the form of biogas. Nevertheless, at the early stage of the project, decisions must be made concerning the (...)

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[hal-01515056] Modélisation et simulation robuste de l'endommagement ductile

28 avril 2017

Dans notre travail de modélisation de l'endommagement ductile, une formulation de grandes déformations logarithmiques est utilisée. Afin de traiter la dépendance au maillage, nous régularisons la loi de comportement avec un modèle non local à gradient d'une variable interne. Ce modèle non local est (...)

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[hal-01514300] Technique d'hyper-réduction de modèle efficace dédiée à l'étude paramétrique des simulations 3D thermo-élasto-plastiques

27 avril 2017

Ce document se concentre sur les simulations 3D thermo-élasto-plastique pour une source thermique localisée. Il propose une méthode de calcul qui permet de rendre très efficace les analyses paramétriques. La méthode repose une technique d'hyper-réduction de modèle. Le calcul paramétrique repose sur (...)

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[hal-01493817] Wastewater monitoring to study the temporal and spatial representativeness of flow and pollution discharge measurements

30 mars 2017

Measuring flow-rate and pollutant discharges through sewer networks is required for legal, technical and management reasons. This paper presents an experimental study combining continuous monitoring of flow and water quality parameters with studies of the velocity and suspended solids spatial (...)

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[hal-01486428] Nickel agromining: a new phytotechnology to recover nickel from secondary resources

10 mars 2017

Nickel agromining: a new phytotechnology to recover nickel from secondary resources. Recycling 2015: A challenge for chemistry

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[hal-01486460] Phytoextraction and phytomining of trace elements from soils

10 mars 2017

Phytoextraction and phytomining of trace elements from soils. XXXV Congresso Brasileiro de Ciência do Solo

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[hal-01486483] Recycling nickel from hyperaccumulator plants at the pilot scale.

10 mars 2017

Recycling nickel from hyperaccumulator plants at the pilot scale. . Aquaconsoil 2015

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[hal-01486482] A green process to produce a bio-sourced nickel salt.

10 mars 2017

A green process to produce a bio-sourced nickel salt.. SGC 2015 3rd International Symposium on Green Chemistry

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[hal-01486484] LORVER project: production chain of biomass for industrial purposes from former sites and materials.

10 mars 2017

LORVER project: production chain of biomass for industrial purposes from former sites and materials. . AquaConsoil 2015

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[hal-01458423] Optimal design and operation of activated sludge processes: State-of-the-art

22 février 2017

The activated sludge process (ASP) is the most commonly used process for wastewater treatment. Improving its performance is necessary from economic and environmental point of views. In this context, dynamic optimization is a powerful tool for assisting engineers in determining optimal (...)

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[tel-01447920] INFLUENCE DE L’HUMIDITE DE L’AIR SUR LA PERTE DE CHARGE D’UN DEPOT NANOSTRUCTURE

2 février 2017

La qualité de l’air est devenue un enjeu environnemental et de santé publique majeur. Les particules présentes dans l’air peuvent être d’origine anthropique ou manufacturées et de nombreuses questions se posent encore quant à l’impact sur la santé des plus fines d’entre elles (< 100 nm). Ainsi, dans (...)

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[hal-01267213] Hydrodynamic characterization of a new small-scale reactor mixed by a magnetic bar

6 janvier 2017

The purpose of this study was to evaluate the mixing characteristics of a new milliliter-scale (mL-scale) reactor developed for studying enzymatic activity or physiological cell response. The mL-scale reactor was designed to enable the integration of several sensors to carry out dynamic (...)

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[hal-01415949] Interaction en formation des enseignants de langue : sensibilisation de futurs enseignants sur le plan émotionnel par un dispositif hybride interactif

15 décembre 2016

En littérature de la didactique des langues, les discussions autour de la notion d'interaction s'actualisent et s'enrichissent avec l'ère numérique. Si toute situation d'interaction implique la présence des protagonistes interactants, leurs échanges ne sont possibles qu'avec le repérage et (...)

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[hal-01264854] Editorial - Nanoparticles

9 décembre 2016

Due to their novel and enhanced properties compared to bulk materials, nanoparticles exhibit extremely promising applications in a wide range of disciplines including molecular engineering, medicine, pharmaceutical drug manufacture, biotechnology, biology, chemistry, polymer science, physics, (...)

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[hal-01267206] Rheological behavior of vibrated bimodal granular suspensions: a free volume approach

8 décembre 2016

In this paper, we investigate the dependence of the viscosity of vibrated bidisperse granular suspensions of spherical particles on the relative fraction of the two populations. At the same total volume fraction I center dot, the viscosity of the bidisperse suspension is lower than that of a (...)

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[hal-01266900] Vibration-induced compaction of granular suspensions

8 décembre 2016

We investigate the compaction dynamics of vibrated granular suspensions using both digital imaging technique and MRI measurements. Starting from initialy loose packings, our experimental data suggest the existence of two stages in the compaction dynamics: a fast stage at short times where a (...)

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[hal-01266995] Drag, lift and torque coefficients for ellipsoidal particles: From low to moderate particle Reynolds numbers

8 décembre 2016

An accurate prediction of the translational and rotational motion of ellipsoidal particles can be only given if a complete set of correlations of the drag, lift and pitching torque coefficients is known. The present study is thus devoted to the assessment of the available correlations in the (...)

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[hal-01266908] Linear stability of Taylor-Couette flow of shear-thinning fluids: modal and non-modal approaches

8 décembre 2016

In this paper, the response of circular Couette flow of shear-thinning fluids between two infinitely long coaxial cylinders to weak disturbances is addressed. It is highlighted by transient growth analysis. Both power-law and Carreau models are used to describe the rheological behaviour of the (...)

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[hal-01264847] Study on uranium peroxide precipitation in a continuous fluidized-bed reactor with mechanical stirring

8 décembre 2016

This study provides the results obtained from the experiments carried out in a specially adapted continuous fluidized-bed reactor equipped with a multi-impeller stirring device. The influence of operating parameters on yellow cake precipitation as uranium peroxide was studied. The effects of (...)

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[hal-01410098] Contribution to Numerical Modeling of Water Flow in Variably Saturated, Heterogeneous Porous Media

6 décembre 2016

Solutions to the Richards equation for water flow in variably saturated porous media are the focus of this paper. Working with field conditions, the extreme variability and complexity of soil, initial and boundary conditions can make the flow problem difficult to solve. This paper proposes to (...)

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[hal-01406746] Adiabatic modelling of CO 2 capture by amine solvents using membrane contactors

2 décembre 2016

The modelling of CO 2 chemical absorption using hollow fiber membrane contactors is addressed. A one-dimensional, multicomponent adiabatic model for the CO 2 absorption using an aqueous solution of monoethanolamine is established. The model is validated using both, laboratory and pilot-scale (...)

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[hal-01266909] Emission of trace elements and retention of Cu and Zn by mineral and organic materials used in green roofs

21 novembre 2016

The increasing surface area of green roofs (GR) may have a significant impact on the quantity and quality of urban drainage. However, the chemical quality of effluents produced by GR in comparison to atmospheric deposit and other roof surfaces has to date been poorly assessed. It is necessary (...)

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[hal-01266252] Lysimeter monitoring as assessment of the potential for revegetation to manage former iron industry settling ponds

21 novembre 2016

To assess the impact ofmetal-rich brownfields on groundwater quality, the fluxes in a Technosol developed on a former iron industry settling pond were studied. Intact soil monoliths (1 m(2) x 2 m) were extracted and placed in lysimeters. Dynamics of fluxes of metals and solutes under varying (...)

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[hal-01266904] Factors influencing the Zn and Mn extraction from pyrometallurgical sludge in the steel manufacturing industry

21 novembre 2016

In this laboratory study, a process has been developed for selectively leaching zinc and manganese from pyrometallurgical sludge produced in the steel manufacturing industry. In the first part, the yield of Zn extraction was studied using four factors and four levels of the Box-Behnken response (...)

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[hal-01267220] Agromining: Farming for Metals in the Future?

21 novembre 2016

Phytomining technology employs hyperaccumulator plants to take up metal in harvestable plant biomass. Harvesting, drying and incineration of the biomass generates a high-grade bio-ore. We propose that ``agromining'' (a variant of phytomining) could provide local communities with an alternative (...)

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[hal-01270993] The effect of plant density in nickel-phytomining field experiments with Alyssum murale in Albania

21 novembre 2016

Ultramafic vertisols cover large areas in Albania and offer opportunities for phytomining. We undertook a field experiment with native Alyssum murale on two representative Vertisols at a distance of 20km from each other (Pojske and Domosdove, Albania), to test the effect of planting density (...)

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[hal-01273372] Phytoextraction of nickel and rhizosphere microbial communities under mono- or multispecies hyperaccumulator plant cover in a serpentine soil

21 novembre 2016

The efficiency of nickel (Ni) phytoextraction by hyperaccumulating Brassicaceae was compared in two types of covers, namely, monoculture or mixed culture. The selected species were from the Pindus Mountains (Greece), including Alyssum murale, Noccaea tymphaea, Leptoplax emarginata and (...)

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[hal-01270982] Viscoelasticity of vibrated granular suspensions

28 septembre 2016

We propose, in this paper, a model for predicting the rheological response of both vibrated and sheared 3D granular suspensions in stationary and nonstationary conditions. The major assumption of this model is the inherent bimodal behavior of chain forces in granular packings. The model is set (...)

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[hal-01263575] Agromining for nickel: a complete chain that optimizes ecosystem services rendered by ultramafic landscapes

23 juillet 2016

Serpentine (i.e. ultramafic) outcrops in Europe cover more than 10,000 km2 and have a low-fertility and low-productivity, making them unattractive for traditional agriculture. Many of these areas are slowly abandoned by local farmers, with rural exodus and landscape closure. However, ultramafic (...)

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[insu-01344521] THE ACCRETING BLACK HOLE SWIFT J1753.5–0127 FROM RADIO TO HARD X-RAY

13 juillet 2016

We report on multi-wavelength measurements of Swift J1753.5-0127 in the hard state at L=2.7e36 erg/s (assuming d=3 kpc) in 2014. The radio emission is optically thick synchrotron, presumably from a compact jet. We take advantage of the low extinction and model the near-IR to UV emission with a (...)

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[hal-01344743] Impact of two ionic liquids, 1-ethyl-3-methylimidazolium acetate and 1-ethyl-3-methylimidazolium methylphosphonate, on Saccharomyces cerevisiae: metabolic, physiologic, and morphological investigations.

13 juillet 2016

Background : Ionic liquids (ILs) are considered as suitable candidates for lignocellulosic biomass pretreatment prior enzymatic saccharification and, obviously, for second-generation bioethanol production. However, several reports showed toxic or inhibitory effects of residual ILs on (...)

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[insu-01343963] OPTICAL AND NEAR-INFRARED SPECTROSCOPY OF THE BLACK HOLE SWIFT J1753.5–0127

12 juillet 2016

We report on a multiwavelength observational campaign of the black hole X-ray binary Swift J1753.5

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[insu-01343070] The evolution of a jet ejection of the ultraluminous X-ray source Holmberg II X-1

9 juillet 2016

We present quasi-simultaneous, multi-epoch radio and X-ray measurements of Holmberg II X-1 using the European VLBI Network (EVN), the Karl G. Jansky Very Large Array (VLA), and the Chandra and Swift X-ray telescopes. The X-ray data show apparently hard spectra with steady X-ray luminosities 4 (...)

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[insu-01323361] THE COMPLEX ACCRETION GEOMETRY OF GX 339−4 AS SEEN BY NuSTAR AND Swift

22 juin 2016

We present spectral analysis of five NuSTAR and Swift observations of GX 339−4 taken during a failed outburst in summer 2013. These observations cover Eddington luminosity fractions in the range ≈0.9–6%. Throughout this outburst, GX 339−4 stayed in the hard state, and all five observations show (...)

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[hal-01327418] Agglomeration mechanisms and kinetics during the carbonation of a suspension of lime in a pilot batch reactor

7 juin 2016

The reaction studiedin this work is the synthesis of nanometric size calcium carbonate particles by carbonation of a suspension of lime, which represents the most common industrial route. It consists in bubbling carbon dioxide in a suspension of lime to obtain precipitated calcium carbo-nate (...)

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[hal-01320244] Graphene/polymer nanocomposites with high dielectric performance

24 mai 2016

High permittivity polymer-based composites are hightly desired due to their potential applications as high energy density capacitors and inherent advantages of easy processing, flexibility and light weight. Graphene, a two-dimensional nanomaterial with a layer thickness of one atom, has showed (...)

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[hal-01320364] Determination of crystallization kinetics and size distribution parameters of agglomerated calcium carbonate nanoparticles during the carbonation of a suspension of lime

24 mai 2016

The reaction studied in this work is the synthesis of nanometric size calcium carbonate by carbonation of a suspension of lime, which represents the most common industrial route. The carbonation was proceeded in a pilot batch reactor. This article presents a method for the determination of (...)

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[hal-01273371] Modelling of Neodymium Oxalate Precipitation by the Method of Classes

17 mai 2016

Oxalic precipitation is usually used in nuclear industry to process radioactive wastes and recover actinides from a multi-component solution. To facilitate the development of experimental methods and data acquisitions, actinides are often simulated using lanthanides, thereby gaining experience (...)

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[hal-01270994] Optimized Production of Multilayered Monodisperse Polymer Nanoparticles

17 mai 2016

A dynamic optimization frame work is used to produce in a controlled way multilayered latex nanoparticles. The key feature of the method is to track a glass transition temperature profile, which is designed to produce polymer layers with the targeted properties. Several constraints are (...)

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[hal-01270991] A New Catalytic System for the Photodegradation of Endocrinal Disruptors: Synthesis and Efficiency Modeling and Optimization

17 mai 2016

Nowadays, the challenge of understanding relationships between catalysts properties and performance in the context of heterogeneous catalysis is a hot topic. Indeed, catalytic processes are generally affected by many different operational parameters that need to be modeled and optimized. The (...)

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[hal-01270990] Reactive compatibilizer-tracer: a powerful tool for designing, scaling up and optimizing reactive blending processes

17 mai 2016

A concept of reactive compatibilizer-tracer is developed to study reactive polymer blending processes in a twin screw extruder. It is summarized as follows. Fluorescent moieties such as anthracene are attached to a reactive compatibilizer so that the latter can be served both as a (...)

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[hal-01267378] Modeling and parameter estimation of coke combustion kinetics in a glycerol catalytic conversion reactor

17 mai 2016

A two dimensional, heterogeneous model was developed for the simulation of a coked catalyst regeneration fixed-bed reactor in a green acrylics process. A kinetic model which consists of combustion of coke containing carbon, hydrogen and oxygen was derived. The unknown parameters (including the (...)

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[hal-01267001] Liposomal nanodelivery systems using soy and marine lecithin to encapsulate food biopreservative nisin

10 mai 2016

Purified nisin was encapsulated in liposomes made with marine lecithin (ML) or soy lecithin (SL) using a continuous cell disruption system method of microfluidic format and compared with liposomes prepared from proliposomes. SL had higher omega-6 and polar lipids as compared to ML while (...)

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[hal-01266257] Electroassisted leaching of black mass solids from Ni-Cd batteries for metal recovery: Investigation of transport and transfer phenomena coupled to reactions

10 mai 2016

Combined leaching of solid wastes to electrodeposition can be an attractive technique for their optimal beneficiation. In most investigations in the area, results are given in terms of energy consumption and selectivity, without thorough analysis of the rates of the various processes involved. (...)

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[hal-01264851] Effect of different operating conditions on the extraction of phenolic compounds in orange peel

10 mai 2016

The effects of different operating conditions on four extraction techniques were studied and compared. The criteria analyzed were total phenol and flavonoid contents, individual flavonoids and antioxidant activity. The common operating conditions of extraction are ratio m/v: 5 g:50 ml; 80% (...)

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[hal-01266251] Thermo-responsive and aqueous dispersible ZnO/PNIPAM core/shell nanoparticles

10 mai 2016

In this work, we developed a new process to covalently graft a thermoresponsive polymer on the surface of fluorescent nanocrystals in order to synthesize materials that combine both responsive and fluorescent properties. For the first time, poly(N-isopropylacrylamide) (PNIPAM) was grown by (...)

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[hal-01266911] A facile method for the preparation of bifunctional Mn:ZnS/ZnS/Fe3O4 magnetic and fluorescent nanocrystals

10 mai 2016

Bifunctional magnetic and fluorescent core/shell/shell Mn:ZnS/ZnS/Fe3O4 nanocrystals were synthesized in a basic aqueous solution using 3-mercaptopropionic acid (MPA) as a capping ligand. The structural and optical properties of the heterostructures were characterized by X-ray diffraction (...)

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[hal-01267208] End-of-life nickel-cadmium accumulators: characterization of electrode materials and industrial Black Mass

10 mai 2016

The aim of this paper is the characterization of spent NiCd batteries and the characterization of an industrial Black Mass obtained after crushing spent NiCd batteries and physical separation in a treatment plant. The characterization was first performed with five cylindrical NiCd batteries (...)

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[hal-01306322] Degradation (or lack thereof) and drag reduction of HPAM Solutions during transport in turbulent flow in pipelines

22 avril 2016

Rules of thumb that are used in the industry for polymer-flooding projects tend to limit the distance over which hydrolyzed poly-acrylamide polymers can be transported in pipelines without under-going significant degradation. However, in sensitive environments, such as offshore facilities where (...)

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[hal-01306316] Monitoring the size and the stability of zinc oxide quantum dots in biological media

22 avril 2016

We present herein a joint physical/physico-chemical study and, more specifically, the first application of Matrix Assisted Laser Desorption Ionization coupled with Time of Flight Mass Spectrometry (MALDI-TOF-MS) to analyze small-sized ZnO quantum dots (QDs) (2.8-3.1 nm diameter range) (...)

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[hal-01306202] What do we really know about the low-temperature oxidation of alkanes?

22 avril 2016

Due to its importance for engine development, the chemistry related to the low-temperature oxidation of components of fuels has been studied for many years. Several detailed kinetic models giving good predictions of global properties such auto-ignition delay times, as well as satisfactory (...)

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[hal-01306121] Modeling of Polycyclic Aromatic Hydrocarbon (PAH) formation during hydrocarbon pyrolysis

22 avril 2016

Hydrocarbon pyrolysis in low-Pressure gas carburizing conditions drives to gas phase reactions which lead to the production of Polycyclic Aromatic Hydrocarbons (PAHs). These PAHs are afterwards responsible for soot formation. The aim of the study is to predict the formation of mainly sixteen (...)

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[hal-01305592] Esculin and its oligomer fractions inhibit adhesion and migration of U87 glioblastoma cells and in vitro angiogenesis

21 avril 2016

Cancer metastasis is the major cause of cancer-​related death. Chemoprevention is defined as the use of natural or synthetic substances to prevent cancer formation or cancer progress. In the present study, we investigate the antitumor activity of esculin and its oligomer fractions in U87 (...)

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[hal-01304715] Experimental and Kinetic Modeling Study of 2-Methyl-2-Butene: Allylic Hydrocarbon Kinetics

21 avril 2016

Two experimental studies have been carried out on the oxidation of 2-methyl-2-butene, one measuring ignition delay times behind reflected shock waves in a stainless steel shock tube, and the other measuring fuel, intermediate, and product species mole fractions in a jet-stirred reactor (JSR). (...)

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[hal-01304439] A comparison of cell disruption procedures for the recovery of intracellular carotenoids from Sporobolomyces ruberrimus H110

20 avril 2016

Carotenoids are intracellular pigments produced by microorganisms, including some species of yeasts, in the stationary phase of growth by the secondary metabolic pathways. In the present study, different methods of Sporobolomyces ruberrimus H110 yeast cell lysis were evaluated with the (...)

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[hal-01304189] Is the nano-risk a chemical risk like the others?

19 avril 2016

The emerging area of nanotechnologies possibly offers promise for the future with its focus on preventive design. To gain traction, however, it is important that research on the sustainability of materials is funded at levels significant enough to identify early warnings, and that possible (...)

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[hal-01304164] Biosynthesis and role of 3-methylbutanal in cheese by lactic acid bacteria

19 avril 2016

Branched chain aldehyde, 3-methylbutanal is associated as a key flavor compound to many hard and semi-hard cheese varieties. The presence and impact of this flavor compound in bread, meat and certain beverages has been recently documented, however its presence and consequences regarding cheese (...)

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[hal-01303803] Thermoswitchable fluorescent nanoparticles

19 avril 2016

In this work, we developed a new process to covalently graft a thermo-responsive polymer on the surface of fluorescent nanocrystals in order to synthesize hybrid materials that combine both responsive and fluorescent properties. Nontoxic ZnO quantum dots (QDs) formed the core because usually (...)

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[hal-01303865] New insight into organosilane grafting onto titania and silica nanoparticles using volumetric techniques based on molecular probing

19 avril 2016

This paper addresses the surface modification of oxide nanoparticles using organosilane molecules. To this aim,the surface of TiO2nanoparticles is modified with n-(6-aminohexyl)aminopropyl-trimethoxysilane (AHAPS) whilehexadecyltrichlorosilane (HTS) is applied as surface modifier of Aerosil (...)

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[hal-01303674] Kinetic determination of chemical looping combustion reactions in a continuous stirred tank reactor

19 avril 2016

This paper deals with the study of methane combustion with NiO/NiAl2O4 as oxygen carrier for a better understanding of Chemical Looping Combustion. Partial combustion of methane with NiO/NiAl2O4 tablets has been investigated in a lab scale continuous perfectly auto-stirred tank reactor (CASTR) (...)

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[hal-01303914] Modelling a photocatalytic reaction in a microchannel reactor

19 avril 2016

The present study deals with the photocatalytic degradation of the salicylic acid in a microchannel reactor with a rectangular cross-section and a deposit catalyst at the bottom. Three geometries with a microchannel depth varying between 0.1 to 0.75 mm, have been tested. Our goal was to (...)

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[hal-01303576] Multivariable control and online state estimation of an FCC unit

18 avril 2016

The purpose of this paper is to realize multivariable control , tuning and online state estimation of some parameters of the FCC unit . We implemented two control structures with the manipulated variables being the air inlet flow rate in the regenerator, the regenerated catalyst flow rate and (...)

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[hal-01303553] Study of Tunisian nettle leaves (Urtica dioica L.)

18 avril 2016

This work was undertaken to explore the potential of extract of leaves Nettle (Urtica dioica L.) of Tunisia as sources of minerals and natural antioxidants. Two extraction methods were used and compared, the supercritical fluid extraction (SFE) with carbon dioxide (CO2) and traditional (...)

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[hal-01303550] Phytochemical analyses of supercritical CO2 extract of Tunisian Psidium guava seeds

18 avril 2016

This study aimed to determine the fatty acid profile and quantify the bioactive compounds present in tunisian guava seed powder (Psidium guajava L.). The research was conducted on the extracts obtained by supercritical fluid extraction (SFE) and compared with those obtained by maceration and (...)

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[hal-01303529] Study of Supercritical CO2 Extraction from Tunisian Psidium guava leaves. Antioxidant activity of the extracts

18 avril 2016

Guava (Psidium guajava L.) is a fruit cultivated in all warm regions of the globe for tasty sweet yellow fruit. In this work the extraction of biologically active constituents of Tunisian guava was performed by supercritical fluid extraction (SFE). The SFE with carbon dioxide (CO2) and ethanol (...)

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[hal-01300390] Multi-objective optimization of large-size wastewater treatment plants operation and design

11 avril 2016

This paper deals with the multi-objective optimal control of a small-size wastewater treatment plant, where the excess sludge produced is incinerated for electricity production. The trade-offs between the treatment quality and operating costs are characterized. Emphasis is put on a proper (...)

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[hal-01296989] Generation, Characterization and Ignition of Lube Oil Mists

2 avril 2016

In this work, the generation conditions of lube oil mists by spray, their droplet size distributions and their flammability characteristics were studied. At first, tests were carried out on brand new lube oil having a viscosity of 32 mm2.s−1 at 40°C (ISO VG32) and a flashpoint higher than 200°C. (...)

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[hal-01296959] Dust explosion of solid/solid mixtures: application to nuclear decommissioning

2 avril 2016

The possibility to encounter dusts composed of graphite and metals particles, during UNGG (Natural Uranium Graphite Gas) French reactors decommissioning or store in silos, has led to characterize their flammability and explosivity properties, to support the future safety analyses of dismantling (...)

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[hal-01296579] Pedogenetic trends in soils formed in technogenic parent materials

1er avril 2016

Soils formed in technogenic parent materials are proliferating, and their pedogenesis remains inadequately understood. On investigation of soils formed in various technogenic materials reported in the literature and of a Technosol developing on iron industry deposits, potential specificities of (...)

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[hal-01292964] Removal of reactive textile dye from aqueous solutions by electrocoagulation in a continuous cell

25 mars 2016

In electrocoagulation (EC), coagulants are deliveredin situusing the corrosion of sacrificialanodes when a DC voltage is applied. Simultaneously, electrolytic gases (H2) are generated at the cathode. Aluminum and iron materials are usually used as anodes, the dissolution of which produces (...)

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[hal-01293158] Electrokinetic removal of aluminum and chromium from industrial wastewater electrocoagulation treatment sludge

25 mars 2016

Treatment of industrial wastewaters by electrocoagulation is very efficient to remove numerous types of pollutant (organic, mineral, colored, metal). However, few researches are devoted to the elimination of metals contained in the generated sludge. The objective of this paper was to study the (...)

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[hal-01291766] Estimation of kinetic parameters and diffusion coefficients for the transesterification of triolein with methanol on a solid ZnAl2O4 catalyst.

23 mars 2016

The transesterification of vegetable oils by methanol implies a set of three parallel–series reversible reactions. Over a heterogeneous catalyst, reactions are limited by molecular diffusion, resulting in the use of a large excess of methanol to achieve a high conversion. This excess is (...)

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[hal-01264850] Singlet Oxygen-Mediated Oxidation during UVA Radiation Alters the Dynamic of Genomic DNA Replication

9 mars 2016

UVA radiation (320-400 nm) is a major environmental agent that can exert its deleterious action on living organisms through absorption of the UVA photons by endogenous or exogenous photosensitizers. This leads to the production of reactive oxygen species (ROS), such as singlet oxygen (O-1(2)) (...)

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[hal-01281368] The IVS data input to ITRF2014

4 mars 2016

Very Long Baseline Interferometry (VLBI) is a primary space-geodetic technique for determining precise coordinates on the Earth, for monitoring the variable Earth rotation and orientation with highest precision, and for deriving many other parameters of the Earth system. The International VLBI (...)

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[hal-01267215] Sensitivity, estimability and correlation of parameters describing equilibrium and nonequilibrium transports of bromide tracer in the field lysimeter

4 mars 2016

Modelling of solute transport under transient flow conditions requires many input parameters, especially when using the nonequilibrium model. Most often, these parameters are not accurately measured but estimated by means of the inverse methods. Among different factors causing the nonuniqueness (...)

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[hal-01267377] Expected evolution of a Technosol derived from excavated Callovo-Oxfordian clay material

3 mars 2016

Raw geological materials excavated then piled on large surface areas are submitted to pedogenetic factors. Knowledge of the evolution of this freshly exposed material is required to predict the newly developed Technosol and the corresponding ecosystem. The pedogenetic evolution of a Technosol (...)

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[hal-01266246] An interpretation of the hydrogen inhibiting effect on chemical vapor deposition of pyrocarbon

1er mars 2016

A detailed kinetic mechanism, based on elementary steps, modeling both pyrocarbon deposition and gas phase composition obtained by propane pyrolysis on carbon fibers was recently proposed. This model, based on heterogeneous and homogeneous elementary steps was efficient to predict pyrocarbon (...)

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[hal-01278472] Recombinant pediocin in Lactococcus lactis: increased production by propeptide fusion and improved potency by co-production with PedC

25 février 2016

We describe the impact of two propeptides and PedC on the production yield and the potency of recombinant pediocins produced in Lactococcus lactis. On the one hand, the sequences encoding the propeptides SD or LEISSTCDA were inserted between the sequence encoding the signal peptide of Usp45 and (...)

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[hal-01278690] Antioxidative and bioprotective effect of lactic acid bacteria on postharvest strawberry: intact and cell lysates

25 février 2016

The present study evaluates the antioxidative and the protective effect of the intact and cell lysates of Lactobacillus pentosus on the postharvest strawberry during 10 days of storage at 4 A degrees C. The antioxidant activities of the intact and cells lysates were measured by the inhibition (...)

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[hal-01278689] Modulation of singlet oxygen generation and amphiphilic properties of trihydroxylated monohalogenated porphyrins

25 février 2016

Two of the properties important for photodynamic therapy applications are systematically investigated on a trihydroxylated monohalogenated porphyrin core. Singlet oxygen generation can be increased thanks to the heavy atom effect, frequently provided by the introduction of halogen atoms on the (...)

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[hal-01278690] Antioxidative and bioprotective effect of lactic acid bacteria on postharvest strawberry: intact and cell lysates

25 février 2016

The present study evaluates the antioxidative and the protective effect of the intact and cell lysates of Lactobacillus pentosus on the postharvest strawberry during 10 days of storage at 4 A degrees C. The antioxidant activities of the intact and cells lysates were measured by the inhibition (...)

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[hal-01278689] Modulation of singlet oxygen generation and amphiphilic properties of trihydroxylated monohalogenated porphyrins

25 février 2016

Two of the properties important for photodynamic therapy applications are systematically investigated on a trihydroxylated monohalogenated porphyrin core. Singlet oxygen generation can be increased thanks to the heavy atom effect, frequently provided by the introduction of halogen atoms on the (...)

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[hal-01270112] Introduction to the Issue on Advanced Signal Processing Techniques for Radar Applications

24 février 2016

In the last decade, the radar world is assisting to a sort of new revolution, comparable to that caused by the introduction of adaptivity in the 70s. Continuing advances in device technologies combined with adaptive processing present rich opportunities for new sensing methodologies and new (...)

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[hal-01276909] Technology roadmapping for competitive technical intelligence

22 février 2016

Understanding the evolution and emergence of technology domains remains a challenge, particularly so for potentially breakthrough technologies. Though it is well recognized that emergence of new fields is complex and uncertain, to make decisions amidst such uncertainty, one needs to mobilize (...)

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[hal-01273379] Simulations of filter media performances from microtomography-based computational domain. Experimental and analytical comparison

19 février 2016

In this work, synchrotron X-ray microtomography was used to produce high spatial resolution images of one fibrous filter, made of binderless monodispersed fiberglass. Based on these images, representative computational domains were created using the import interface of the GeoDict software. (...)

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[hal-01273380] SOLMED: solar energy and polymers for seawater desalination

19 février 2016

Combining thermal solar energy and polymer materials allows seawater desalination while fossil fuels are saved and use of chemicals against fouling and corrosion is reduced. SOLar Multi-Effect Desalination (SOLMED) meets recommendations of the US National Research Council and Middle East (...)

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[hal-01266258] Multi-objective optimal control of small-size wastewater treatment plants

19 février 2016

In this work, a multi-objective dynamic optimization of the operating strategy of a small-size wastewater treatment plant is carried out. In-situ incineration of the excess sludge produced for electricity production is investigated in order to reduce the operating costs. The trade-offs between (...)

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[hal-01267379] Multi-objective Optimization of Small-size Wastewater Treatment Plants Operation

19 février 2016

This paper deals with the multi-objective optimal control of a small-size wastewater treatment plant, where the excess sludge produced is incinerated for electricity production. The trade-offs between the treatment quality and operating costs are characterized. Emphasis is put on a proper (...)

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[hal-01264848] Adiabatic modelling of CO2 capture by amine solvents using membrane contactors

19 février 2016

The modelling of CO2 chemical absorption using hollow fiber membrane contactors is addressed. A one-dimensional, multicomponent adiabatic model for the CO2 absorption using an aqueous solution of monoethanolamine is established. The model is validated using both, laboratory and pilot-scale (...)

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[hal-01267376] Development of a thermodynamic identification tool for CO2 capture by chemical absorption

19 février 2016

The extended UNIQUAC model has been used for the representation of the thermodynamic behaviour of CO2 absorption in aqueous amine solutions. Based on available experimental data, an identification methodology has been developed to fit the extended-UNIQUAC model parameters. In the scope of (...)

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[hal-01267376] Development of a thermodynamic identification tool for CO2 capture by chemical absorption

19 février 2016

The extended UNIQUAC model has been used for the representation of the thermodynamic behaviour of CO2 absorption in aqueous amine solutions. Based on available experimental data, an identification methodology has been developed to fit the extended-UNIQUAC model parameters. In the scope of (...)

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[hal-01266993] Pyrolysis mechanism of the n-octane/H2S mixture at 70 MPa and 603-623 K

17 février 2016

A detailed kinetic model consisting of 3883 free-radical reactions was developed to describe the pyrolysis of the n-octane/H2S mixture at high pressure and relatively low temperature. The model was validated by comparison between the simulation results and the experimental data obtained at 603 (...)

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[hal-01266993] Pyrolysis mechanism of the n-octane/H2S mixture at 70 MPa and 603-623 K

17 février 2016

A detailed kinetic model consisting of 3883 free-radical reactions was developed to describe the pyrolysis of the n-octane/H2S mixture at high pressure and relatively low temperature. The model was validated by comparison between the simulation results and the experimental data obtained at 603 (...)

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[hal-01273380] SOLMED: solar energy and polymers for seawater desalination

13 février 2016

Combining thermal solar energy and polymer materials allows seawater desalination while fossil fuels are saved and use of chemicals against fouling and corrosion is reduced. SOLar Multi-Effect Desalination (SOLMED) meets recommendations of the US National Research Council and Middle East (...)

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[hal-01273371] Modelling of Neodymium Oxalate Precipitation by the Method of Classes

13 février 2016

Oxalic precipitation is usually used in nuclear industry to process radioactive wastes and recover actinides from a multi-component solution. To facilitate the development of experimental methods and data acquisitions, actinides are often simulated using lanthanides, thereby gaining experience (...)

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[hal-01273379] Simulations of filter media performances from microtomography-based computational domain. Experimental and analytical comparison

13 février 2016

In this work, synchrotron X-ray microtomography was used to produce high spatial resolution images of one fibrous filter, made of binderless monodispersed fiberglass. Based on these images, representative computational domains were created using the import interface of the GeoDict software. (...)

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[hal-01273372] Phytoextraction of nickel and rhizosphere microbial communities under mono- or multispecies hyperaccumulator plant cover in a serpentine soil

13 février 2016

The efficiency of nickel (Ni) phytoextraction by hyperaccumulating Brassicaceae was compared in two types of covers, namely, monoculture or mixed culture. The selected species were from the Pindus Mountains (Greece), including Alyssum murale, Noccaea tymphaea, Leptoplax emarginata and (...)

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[hal-01273370] Modeling of variations in nitrogen trichloride concentration over time in swimming pool water

13 février 2016

In water, chlorine reacts with nitrogen-containing compounds to produce disinfection by-products such as nitrogen trichloride which induces ocular and respiratory irritations in swimming pool workers. This study proposes a model to predict variations in NCl3 concentration over time in a (...)

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[hal-01273369] Experimental Measurement and Correlation of Solubility Data and Thermodynamic Properties of Protocatechuic Acid in Four Organic Solvents

13 février 2016

Using a thermostated reactor and UV/vis spectrophotometer analysis, the solubility of protocatechuic acid (PA) in ethanol, methanol, methyl acetate, and ethyl acetate was measured from (293.15 to 318.15) K at atmospheric pressure. The effect of solvent type and temperature on the solubility are (...)

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[hal-01273375] Effects of polymer additives in the bulk of turbulent thermal convection

13 février 2016

We present experimental evidence that a minute amount of polymer additives can significantly enhance heat transport in the bulk region of turbulent thermal convection. The effects of polymer additives are found to be the enhancement of coherent heat fluxes and suppression of incoherent heat (...)

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[hal-01273376] Editorial note

13 février 2016

no abstract

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[hal-01273382] Self-similar pinch-off mechanism and scaling of ferrofluid drops

13 février 2016

The pinch off of heterogeneous ferrofluid drops at a nozzle in air was experimentally investigated with a magnetic field (downward or upward) and without a magnetic field. Compared to homogeneous drops, the self-similarity and universal scaling law were verified through modifying the initial (...)

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[hal-01273381] Screening method for solvent selection used in tar removal by the absorption process

13 février 2016

The aim of this paper is the study of the treatment of flue gas issued from a process of biomass gasification in fluidized bed. The flue gas contains tar which should be selectively removed from the fuel components of interest (e.g. H-2, CO and light hydrocarbons) to avoid condensation and (...)

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[hal-01273377] Fast Pyrolysis in a Microfluidized Bed Reactor: Effect of Biomass Properties and Operating Conditions on Volatiles Composition as Analyzed by Online Single Photoionization Mass Spectrometry

13 février 2016

The real-time analysis of volatiles (primary tar) produced during the fast pyrolysis of biomass in a microfluidized bed reactor (MFBR) is achieved by online single photoionization mass spectrometry (SPI-MS). The effect of biomass composition (Douglas fir, oak, and miscanthus), particle shape (...)

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[hal-01273378] Bubble coalescence in non-Newtonian fluids in a microfluidic expansion device

13 février 2016

This communication presents experimentally the bubble coalescence in a microfluidic expansion device using a high-speed digital camera and a micro-particle image velocimetry (micro-Ply) system. Experiments were conducted in a PMMA microchannel of 400 mu m deep, composed of an expansion with an (...)

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[hal-01273374] Measurement and correlation of vapour pressures of pyridine and thiophene with [EMIM][SCN] ionic liquid (vol 72, pg 134, 2014)

13 février 2016

In this work (vapour + liquid) equilibrium (VLE) measurements were performed on binary systems of the ionic liquid 1-ethyl-3-methylimidazolium thiocynate [EMIM][SCN] with thiophene or pyridine at pressures close to the atmospheric pressure using a static device at temperatures between 273 K and (...)

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[hal-01270982] Viscoelasticity of vibrated granular suspensions

10 février 2016

We propose, in this paper, a model for predicting the rheological response of both vibrated and sheared 3D granular suspensions in stationary and nonstationary conditions. The major assumption of this model is the inherent bimodal behavior of chain forces in granular packings. The model is set (...)

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[hal-01270989] Synthesis of Porphyrin, Chlorin and Phthalocyanine Derivatives by Azide-Alkyne Click Chemistry

9 février 2016

The aim of this review is to provide a summary of the use of copper-catalyzed azide-alkyne cycloaddition (CuAAC) in the synthesis of porphyrin, chlorin and phthalocyanine derivatives for different types of therapeutic applications. The click reaction is a powerful and versatile tool for (...)

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[hal-01270996] Synthesis and photophysical properties of the photoactivatable cationic porphyrin 5-(4-N-dodecylpyridyl)-10,15,20-tri(4-N-methylpyridyl)-21H,23H-porphyrin tetraiodide for anti-malaria PDT

9 février 2016

This article describes a new synthetic method for obtaining three water soluble porphyrins. The more sophisticated porphyrin [5-(4-N-dodecylpyridyl)-10,15,20-tri(4-N-methylpyridyl)-21H,23H-porphy rin tetraiodide], also named C12 porphyrin, was obtained through a three step methodology. The (...)

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[hal-01270993] The effect of plant density in nickel-phytomining field experiments with Alyssum murale in Albania

9 février 2016

Ultramafic vertisols cover large areas in Albania and offer opportunities for phytomining. We undertook a field experiment with native Alyssum murale on two representative Vertisols at a distance of 20km from each other (Pojske and Domosdove, Albania), to test the effect of planting density (...)

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[hal-01270995] Soft segment free thermoplastic polyester elastomers with high performance

9 février 2016

A soft segment free thermoplastic polyester elastomer is fabricated by controlling the stereochemical structure of molecular chains with the utilization of the cis 1,4-cyclohexylene ring moiety (cis-CHRM) in poly(butylene 1,4-cyclohexanedicarboxylate) (PBC). PBC with 71% cis-CHRM exhibits good (...)

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[hal-01270994] Optimized Production of Multilayered Monodisperse Polymer Nanoparticles

9 février 2016

A dynamic optimization frame work is used to produce in a controlled way multilayered latex nanoparticles. The key feature of the method is to track a glass transition temperature profile, which is designed to produce polymer layers with the targeted properties. Several constraints are (...)

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[hal-01270986] AN INVESTIGATION ON THE ROLE OF NO2 IN THE OXIDATION OF METHANE TO FORMALDEHYDE

9 février 2016

Experimental results and a kinetic modeling were previously reported for the gas phase oxidation of methane in the presence of NO2 at short residence time (20-80 ms) in a microreactor. A detailed kinetic analysis is carried out in the present study in means of flow rate and sensitivity (...)

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[hal-01270981] Unimolecular decomposition of tetrahydrofuran: Carbene vs. diradical pathways

9 février 2016

The unimolecular decomposition of tetrahydrofuran (THF), a building block of possible second-generation biofuels, was studied at the CBS-QB3 level of theory. As its initial initiation routes remain unknown, a large number of pathways were explored involving three types of fundamental elementary (...)

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[hal-01270980] Sorption selectivity and original kinetic analysis of an heterogeneous fatty acrylate esterification on a poly(styrene-divinylbenzene) sulfonated resin

9 février 2016

The heterogeneous catalysis for esterification generally uses a poly(styrene-divinylbenzene) sulfonated resin. It presents a selective affinity with the chemical species involved in the reaction, and a coupled phenomenon of swelling. The components partitioning rests on still not precisely (...)

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[hal-01270979] Active control of ferrofluid droplet breakup dynamics in a microfluidic T-junction

9 février 2016

This work aims at investigating the breakup dynamics of the ferrofluid droplet under magnetic fields in a microfluidic T-junction. The whole breakup processes of the ferrofluid droplets under uniform magnetic field and non-uniform magnetic field were exhaustively considered. The influence of (...)

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[hal-01270991] A New Catalytic System for the Photodegradation of Endocrinal Disruptors: Synthesis and Efficiency Modeling and Optimization

9 février 2016

Nowadays, the challenge of understanding relationships between catalysts properties and performance in the context of heterogeneous catalysis is a hot topic. Indeed, catalytic processes are generally affected by many different operational parameters that need to be modeled and optimized. The (...)

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[hal-01270990] Reactive compatibilizer-tracer: a powerful tool for designing, scaling up and optimizing reactive blending processes

9 février 2016

A concept of reactive compatibilizer-tracer is developed to study reactive polymer blending processes in a twin screw extruder. It is summarized as follows. Fluorescent moieties such as anthracene are attached to a reactive compatibilizer so that the latter can be served both as a (...)

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[hal-01270988] The Interest of Folic Acid in Targeted Photodynamic Therapy

9 février 2016

Photodynamic therapy is an alternative to chemotherapy and radiotherapy for cancer treatment. PDT is clinically applied to treat age-related macular degeneration and several types of cancer. Most of the time, the selectivity of the treatment is brought about by the application of light. Another (...)

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[hal-01270992] Enhanced anaerobic digestion of waste activated sludge of low organic content in a novel digester

9 février 2016

A novel digester, termed an internal circulation anaerobic digester (ICAD), was developed to intensify sludge digestion. It consists of reaction zone, settling zone, thickening zone, riser and downcomer. Internal circulation in the digester is intensified by backflow biogas. The mesophilic ICAD (...)

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[hal-01270985] Influence of substituted furans on the formation of Polycyclic Aromatic Hydrocarbons in flames

9 février 2016

The structure of low-pressure (40 kPa) rich laminar premixed flames of two potential new biofuels, 2,5-dimethylfuran (DMF) and 2-methylfuran (MF), has been investigated using gas chromatography after sampling by a sonic probe. This work follows a study of the same flames made using (...)

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[hal-01270983] Synergistical enhancement by Ni2+ and Tween-80 of nanoscale zerovalent iron dechlorination of 2,2 `,5,5 `-tetrachlorinated biphenyl in aqueous solution

9 février 2016

Effective dehalogenation by nanoscale zerovalent iron (nZVI) has been reported. In this study, the effects of Ni2+, Cu2+ ions, and the nonionic surfactant Tween-80 on dechlorination of 2,2', 5,5'-tetrachlorinated biphenyl (PCB-52) by nZVI were investigated in aqueous solution. The rate of (...)

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[hal-01270997] Pretreatment of miscanthus using 1,3-dimethyl-imidazolium methyl phosphonate (DMIMMPh) ionic liquid for glucose recovery and ethanol production

9 février 2016

An environmentally friendly method for the extraction of cellulose from miscanthus using 1,3-dimethyl-imidazolium methyl phosphonate (DMIMMPh) ionic liquid is described. The parameters affecting the extraction process are temperature and time. Extraction results were evaluated using a (...)

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[hal-01270987] Multi-objective optimisation of the operation of a water distribution network

9 février 2016

The aim of the present paper was to move water through a reservoir network in such a way as to meet consumer demands and level constraints, minimise the cost of electricity, and minimise the loss of chlorine. This was to be achieved by choosing the switching intervals of reservoir inlet pumps (...)

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[hal-01267208] End-of-life nickel-cadmium accumulators: characterization of electrode materials and industrial Black Mass

5 février 2016

The aim of this paper is the characterization of spent NiCd batteries and the characterization of an industrial Black Mass obtained after crushing spent NiCd batteries and physical separation in a treatment plant. The characterization was first performed with five cylindrical NiCd batteries (...)

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[hal-01267387] Metallo-Solid Lipid Nanoparticles as Colloidal Tools for Meso-Macroporous Supported Catalysts

5 février 2016

Mesomacroporous silica containing iron oxide nanoparticles (15-20 nm) was synthesized by formulating solid lipid nanoparticles and metallosurfactant as both template and metal source. Because of the high active surface area of the catalyst, the material exhibits an excellent performance in a (...)

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[hal-01267217] Chronic impact of tetracycline on nitrification kinetics and the activity of enriched nitrifying microbial culture

5 février 2016

This study evaluated the chronic impact of tetracycline on biomass with enriched nitrifying community sustained in a lab-scale activated sludge system. For this purpose, a fill and draw reactor fed with 100 mg COD/L of peptone mixture and 50 mg N/L of ammonia was sustained at a sludge age of 15 (...)

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[hal-01267219] Microwave-assisted synthesis of zinc 5-(4-carboxyphenyl)-10,15,20-triphenylporphyrin and zinc 5-(4-carboxyphenyl)-10,15,20-triphenylchlorin

5 février 2016

The microwave-assisted synthesis of zinc 5-(4-carboxyphenyl)-10,15,20-triphenylporphyrin and zinc 5-(4-carboxyphenyl)-10,15,20-triphenylchlrorin are described and compared to classic conditions of synthesis in terms of time of reaction and yields obtained. The new experimental protocols are (...)

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[hal-01267379] Multi-objective Optimization of Small-size Wastewater Treatment Plants Operation

5 février 2016

This paper deals with the multi-objective optimal control of a small-size wastewater treatment plant, where the excess sludge produced is incinerated for electricity production. The trade-offs between the treatment quality and operating costs are characterized. Emphasis is put on a proper (...)

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[hal-01267215] Sensitivity, estimability and correlation of parameters describing equilibrium and nonequilibrium transports of bromide tracer in the field lysimeter

5 février 2016

Modelling of solute transport under transient flow conditions requires many input parameters, especially when using the nonequilibrium model. Most often, these parameters are not accurately measured but estimated by means of the inverse methods. Among different factors causing the nonuniqueness (...)

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[hal-01267220] Agromining: Farming for Metals in the Future?

5 février 2016

Phytomining technology employs hyperaccumulator plants to take up metal in harvestable plant biomass. Harvesting, drying and incineration of the biomass generates a high-grade bio-ore. We propose that ``agromining'' (a variant of phytomining) could provide local communities with an alternative (...)

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[hal-01267377] Expected evolution of a Technosol derived from excavated Callovo-Oxfordian clay material

5 février 2016

Raw geological materials excavated then piled on large surface areas are submitted to pedogenetic factors. Knowledge of the evolution of this freshly exposed material is required to predict the newly developed Technosol and the corresponding ecosystem. The pedogenetic evolution of a Technosol (...)

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[hal-01267213] Hydrodynamic characterization of a new small-scale reactor mixed by a magnetic bar

5 février 2016

The purpose of this study was to evaluate the mixing characteristics of a new milliliter-scale (mL-scale) reactor developed for studying enzymatic activity or physiological cell response. The mL-scale reactor was designed to enable the integration of several sensors to carry out dynamic (...)

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[hal-01267211] Experimental and modeling study of ultra-rich oxidation of n-heptane

5 février 2016

Ultra rich fuel oxidation of normal heptane, relevant to diesel engine auto-ignition, has been experimentally and numerically investigated in a jet-stirred reactor (JSR) under a wide range of conditions. These cover the low, the intermediate, and the high temperature oxidation regimes, from 550 (...)

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[hal-01267212] Intensification of falling film melt crystallization process through micro and milli-structured surfaces

5 février 2016

This paper shows how Tailing film melt crystallization process can be intensified by using micro/milli-structured surfaces. This work takes part in the development of purification techniques of bio-acrylic acid. The current acrylic acid synthesis is based on propylene, a petroleum derivative. (...)

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[hal-01267206] Rheological behavior of vibrated bimodal granular suspensions: a free volume approach

5 février 2016

In this paper, we investigate the dependence of the viscosity of vibrated bidisperse granular suspensions of spherical particles on the relative fraction of the two populations. At the same total volume fraction I center dot, the viscosity of the bidisperse suspension is lower than that of a (...)

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[hal-01266244] Impact of reducing the channel diameter on heterogeneous gas reactions in an isothermal monolith

3 février 2016

The benefits and drawbacks of micro-monoliths with respect to conventional monoliths, for heterogeneous reactions in a gaseous phase, have been described experimentally in numerous studies. In this work, the interest of using a micro-monolith is demonstrated by achieving a preliminary analysis (...)

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[hal-01266255] Accelerated solvent extraction of carotenoids from: Tunisian Kaki (Diospyros kaki L.), peach (Prunus persica L.) and apricot (Prunus armeniaca L.)

3 février 2016

Extraction of carotenoids from biological matrices and quantifications remains a difficult task. Accelerated solvent extraction was used as an efficient extraction process for carotenoids extraction from three fruits cultivated in Tunisia: kaki (Diospyros kaki L), peach (Prunus persica L) and (...)

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[hal-01266257] Electroassisted leaching of black mass solids from Ni-Cd batteries for metal recovery: Investigation of transport and transfer phenomena coupled to reactions

3 février 2016

Combined leaching of solid wastes to electrodeposition can be an attractive technique for their optimal beneficiation. In most investigations in the area, results are given in terms of energy consumption and selectivity, without thorough analysis of the rates of the various processes involved. (...)

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[hal-01266251] Thermo-responsive and aqueous dispersible ZnO/PNIPAM core/shell nanoparticles

3 février 2016

In this work, we developed a new process to covalently graft a thermoresponsive polymer on the surface of fluorescent nanocrystals in order to synthesize materials that combine both responsive and fluorescent properties. For the first time, poly(N-isopropylacrylamide) (PNIPAM) was grown by (...)

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[hal-01264850] Singlet Oxygen-Mediated Oxidation during UVA Radiation Alters the Dynamic of Genomic DNA Replication

3 février 2016

UVA radiation (320-400 nm) is a major environmental agent that can exert its deleterious action on living organisms through absorption of the UVA photons by endogenous or exogenous photosensitizers. This leads to the production of reactive oxygen species (ROS), such as singlet oxygen (O-1(2)) (...)

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[hal-01266258] Multi-objective optimal control of small-size wastewater treatment plants

3 février 2016

In this work, a multi-objective dynamic optimization of the operating strategy of a small-size wastewater treatment plant is carried out. In-situ incineration of the excess sludge produced for electricity production is investigated in order to reduce the operating costs. The trade-offs between (...)

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[hal-01266252] Lysimeter monitoring as assessment of the potential for revegetation to manage former iron industry settling ponds

3 février 2016

To assess the impact ofmetal-rich brownfields on groundwater quality, the fluxes in a Technosol developed on a former iron industry settling pond were studied. Intact soil monoliths (1 m(2) x 2 m) were extracted and placed in lysimeters. Dynamics of fluxes of metals and solutes under varying (...)

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[hal-01266246] An interpretation of the hydrogen inhibiting effect on chemical vapor deposition of pyrocarbon

3 février 2016

A detailed kinetic mechanism, based on elementary steps, modeling both pyrocarbon deposition and gas phase composition obtained by propane pyrolysis on carbon fibers was recently proposed. This model, based on heterogeneous and homogeneous elementary steps was efficient to predict pyrocarbon (...)

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[hal-01266247] Experimental Study of Tetrahydrofuran Oxidation and Ignition in Low-Temperature Conditions

3 février 2016

The chemistry associated with low-temperature oxidation and ignition of tetrahydrofuran (THF) has been probed through experimental work in two distinct devices: a rapid compression machine (RCM) and a jet-stirred reactor (JSR). Ignition delays of stoichiometric THF/O-2/inert mixtures have been (...)

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[hal-01266248] Extension of the E-PPR78 equation of state to predict fluid phase equilibria of natural gases containing carbon monoxide, helium-4 and argon

3 février 2016

The E-PPR78 model is a predictive version of the widely used Peng-Robinson equation of state in which the binary interaction parameters are estimated by a group-contribution method. With the 21 groups available before the writing of this paper, such a model could be used to predict fluid phase (...)

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[hal-01266249] Supercritical CO2 extraction of oil, fatty acids and flavonolignans from milk thistle seeds: Evaluation of their antioxidant and cytotoxic activities in Caco-2 cells

3 février 2016

The optimal conditions of supercritical carbon dioxide (SC-CO2) (160-220 bars, 40-80 degrees C) technology combined with co-solvent (ethanol), to recover oil, flavonolignans (silychristin, silydianin and silybinin) and fatty acids from milk thistle seeds, to be used as food additives and/or (...)

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[hal-01266250] Experimental and theoretical study of carbohydrate-ionic liquid interactions

3 février 2016

With increasing interest in the use of lignocellulosic biomass for the production of renewable transportation fuels, new approaches for biomass pretreatment have been of considerable interest. The conversion of biomass cellulose to water-soluble sugars is currently one of the most intensive (...)

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[hal-01266253] Determination of reducing power and metal chelating ability of antioxidant peptides: Revisited methods

3 février 2016

The purpose of this study was to improve two common tests used for antioxidant capacity measurements, i.e. the reducing power and chelating ability measurements, for appropriate comparisons between the molecules tested and chosen references, as the usual methods are often performed in a (...)

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[hal-01266254] A simple methodology for predicting the performances of hyaluronic acid purification by diafiltration

3 février 2016

The performances of hyaluronic acid (HA) purification (yield, purity, permeate How rate and productivity) in a semi synthetic medium composed of salts, proteins/peptides by diafiltration through a 100 kDa PES membrane were studied over 10 diavolumes (DV). The HA purity went from 3% to almost (...)

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[hal-01266259] Electrogenerated bubbles induced convection in narrow vertical cells: Ply measurements and Euler-Lagrange CFD simulation

3 février 2016

This paper addresses the two-phase flow hydrodynamics in Vertical Plane Electrode Reactors with Gas Electrogeneration, VPERGEs: (1) An experimental investigation of the hydrodynamics in a laboratory-scale VPERGE reactor - for three different current densities - was carried out. Flow (...)

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[hal-01266260] Impact of gas-liquid mass transfer on organic acids production by Corynebacterium glutamicum in unbaffled shake flasks

3 février 2016

Corynebacterium glutamicum is widely used for industrial production of amino acids. Recently, its ability to produce organic acids in oxygen-deprived or anaerobic conditions has also been demonstrated. In this study, the effects of oxygenation on C glutamicum growth and organic acids production (...)

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[hal-01266261] Deactivation study of a heteropolyacid catalyst for glycerol dehydration to form acrolein

3 février 2016

Gas-phase glycerol dehydration to form acrolein over a heteropolyacid catalyst has been studied to understand the rapid deactivation process. The decrease in the conversion as a function of time was observed depending on operating conditions. The experiments were performed in an isothermal (...)

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[hal-01266256] Three-dimensional numerical simulation of coalescence and interactions of multiple horizontal bubbles rising in shear-thinning fluids

3 février 2016

The dynamics of multiple horizontal bubbles rising from different orifice arrangements in shear-thinning fluids was simulated numerically by three-dimensional Volume of Fluid method. The effects of bubble size, rheological properties of shear-thinning fluids, and orifice structure arrangements (...)

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[hal-01264853] Combining product engineering and inherent safety to improve the powder impregnation process

2 février 2016

The functionalization of nonwoven textiles can be realized by dry powder impregnation. In order to develop and improve this process, two complementary approaches have been combined: product engineering and inherent safety. It consists in integrating ab-initio consumers' requirements, production (...)

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[hal-01264851] Effect of different operating conditions on the extraction of phenolic compounds in orange peel

2 février 2016

The effects of different operating conditions on four extraction techniques were studied and compared. The criteria analyzed were total phenol and flavonoid contents, individual flavonoids and antioxidant activity. The common operating conditions of extraction are ratio m/v: 5 g:50 ml; 80% (...)

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[hal-01264849] Pyrolysis and combustion chemistry of tetrahydropyran: Experimental and modeling study

2 février 2016

This paper reports new experimental and numerical data for the pyrolysis and combustion of tetrahydropyran (THP) - a model component for next-generation heterocyclic oxygenated fuels. Pyrolysis experiments were performed using a plug flow reactor at 170 kPa, over the temperature range 913-1133 (...)

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[hal-01264855] Effect of mold temperature on the structures and mechanical properties of micro-injection molded polypropylene

1er février 2016

The effects of the mold temperature of micro-injection molding on the microstructures and mechanical properties of isotactic polypropylene (PP) gears were studied. The micro-injection molded PP gears present a skin-core type of morphology. The core layer is much thicker than the core and shear (...)

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[hal-01264847] Study on uranium peroxide precipitation in a continuous fluidized-bed reactor with mechanical stirring

1er février 2016

This study provides the results obtained from the experiments carried out in a specially adapted continuous fluidized-bed reactor equipped with a multi-impeller stirring device. The influence of operating parameters on yellow cake precipitation as uranium peroxide was studied. The effects of (...)

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[hal-01264848] Adiabatic modelling of CO2 capture by amine solvents using membrane contactors

1er février 2016

The modelling of CO2 chemical absorption using hollow fiber membrane contactors is addressed. A one-dimensional, multicomponent adiabatic model for the CO2 absorption using an aqueous solution of monoethanolamine is established. The model is validated using both, laboratory and pilot-scale (...)

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[hal-01264857] Size-exclusion HPLC as a sensitive and calibrationless method for complex peptide mixtures quantification

30 janvier 2016

This work describes an original methodology to quantify complex peptide mixtures by size-exclusion high-performance liquid chromatography (SE-HPLC). The methodology was first tested on simulated elutions of peptide mixtures. For this set of experiments, a good estimation of the total peptide (...)

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[hal-01264856] On the Importance of Density in ELPI Data Post-Treatment

30 janvier 2016

This study compared number and mass concentrations obtained using two reference devices, a scanning mobility particle sizer (SMPS) and a tapered element oscillating microbalance (TEOM), with those calculated from raw electrical low-pressure impactor (ELPI) data. ELPI data post-treatment was (...)

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[hal-01264858] Optimal design and operation of activated sludge processes: State-of-the-art

30 janvier 2016

The activated sludge process (ASP) is the most commonly used process for wastewater treatment. Improving its performance is necessary from economic and environmental point of views. In this context, dynamic optimization is a powerful tool for assisting engineers in determining optimal (...)

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[hal-01264859] DEM investigation of granular flow and binary mixture segregation in a rotating tumbler: Influence of particle shape and internal baffles

30 janvier 2016

A horizontal rotating tumbler provided with internal baffles and containing a mixture of two types of particles is investigated by discrete element method (DEM) simulations. The main objective of this study is to characterize the dynamics of a rotary kiln containing spherical steel balls and (...)

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[hal-01264861] Development of a Reactive Compatibilizer-Tracer for Studying Reactive Polymer Blends in a Twin-Screw Extruder

30 janvier 2016

This study aims to develop a concept of reactive compatibilizer-tracer, which allows one to study the evolution of the morphology and interfacial reaction of reactive polymer blends in a large-scale twin-screw extruder (TSE). A reactive compatibilizer-tracer is a compatibilizer precursor whose (...)

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[cea-01260743] Dissolution of uranium dioxide in nitric medium, towards a macroscopic model of reactors

26 janvier 2016

Dissolution is a key step in several industrial processes. It is especially a milestone of the head-end of many hydrometallurgical processes. For example, in recycling of spent nuclear fuel, the solubilization of the chemical elements is essential before performing the liquid-liquid extraction (...)

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[hal-01257199] The photodynamic therapy: state of the art and perspectives

16 janvier 2016

Photodynamic therapy (PDT) is a method of medical treatment using the concomitant action of a photoactivatable molecule called the photosensitizer (PS), light, and oxygen naturally present in the biological medium. After light excitation of the photosensitizer, an energy transfer to oxygen (...)

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[hal-01254318] Measurement of CO 2 + freon phase equilibria and extension of the predictive E-PPR78 equation of state to freon-containing systems

13 janvier 2016

Scientific topic: 2 (equations of state) Abstract Chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) have a high ozone depletion potential (ODP) and hydrofluorocarbons (HFCs) are high global warming potential (GWP) refrigerants. Consequently, refrigeration and airconditioning (...)

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[hal-01250404] Segregation of wood particles in a bubbling fluidized bed

6 janvier 2016

Understanding wood segregation in bubbling fluidized beds is of importance for the global analysis, comprehensive modeling, and scale-up of bubbling fluidized bed biomass gasifiers. This study presents measurements of voidage and segregation taken during experiments in fluidized beds containing (...)

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[hal-01249357] Oxidation of n-Alkane (n-C8H18) under Reservoir Conditions, in Context of Gas Mixture Injection (CO2/O-2): Construction of a Kinetic Model

1er janvier 2016

CO2 geosequestration or enhanced oil recovery (EOR) by CO2 injection in hydrocarbon reservoirs is suggested as a short-term solution for limiting CO2 atmospheric accumulation. In the case of oxy-combustion CO2 capture, the main annex gas associated with CO2 is O-2 in important proportion (=7%). (...)

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[hal-01249020] Oxidation of N-hexadecane and crude oil in response to injection of a CO2/O2 mixture under depleted reservoir conditions: Experimental and kinetic modeling preliminary results

30 décembre 2015

CO2 capture and storage in hydrocarbon reservoir seems to be a good solution to reduce greenhouse gas emissions. However, combustion residual gases are not only composed of CO2 but also associated with minor gases. In the case of oxy-combustion, the main minor gas is oxygen in elevated (...)

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[hal-01248728] Fluorescence spectroscopy as a specific tool for the interaction study of two surfactants with natural and synthetic organic compounds

29 décembre 2015

Four different techniques were used to study the binding of cationic cetyltrimethylammonium bromide (CTAB) and non-ionic nonylphenylethoxyl (NPE) surfactants to three synthetic organic components that mimic humic-like aggregates and to two natural aggregated humic substances (HS) extracted from (...)

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[hal-01248583] Improvement of the photocatalytic activity of TiO2 induced by organic pollutant enrichment at the surface of the organografted catalyst

29 décembre 2015

The photocatalytic activity of TiO2 nanoparticles modified with hydrophobic hexadecyltrichlorosilane (HTS) is investigated. The strategy developed aims to concentrate the organic pollutants onto the surface. The impact of the grafted layer on the number and the nature of the surface (...)

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[hal-01246664] PAMAM G4.5-chlorin e6 dendrimeric nanoparticles for enhanced photodynamic effects

19 décembre 2015

There is currently great interest in the development of efficient and specific carrier delivery platforms for systemic photodynamic therapy. Therefore, we aimed to develop covalent conjugates between the photosensitizer chlorin e6 (Ce6) and PAMAM G4.5 dendrimers. Singlet oxygen generation (SOG) (...)

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[hal-01243073] Addition of the Sulfur Dioxide Group (SO2), the Oxygen Group (O-2), and the Nitric Oxide Group (NO) to the E-PPR78 Model

14 décembre 2015

The E-PPR78 model is a predictive version of the widely used Peng-Robinson equation of state in which the binary interaction parameters are estimated by a group-contribution method. With the 24 groups available before the writing of this paper, such a model could be used to predict fluid phase (...)

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[hal-01241498] QUANTUM CHEMICAL STUDY OF THE THERMOCHEMICAL PROPERTIES OF ORGANOPHOSPHOROUS COMPOUNDS

12 décembre 2015

Organophosphorous compounds are involved in many toxic compounds such as fungicides, pesticides, or chemical warfare nerve agents. The understanding of the decomposition chemistry of these compounds in the environment is largely limited by the scarcity of thermochemical data. Because of the (...)

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[hal-01241520] Prediction of auto-ignition temperatures and delays for gas turbine applications

12 décembre 2015

Gas turbines burn a large variety of gaseous fuels under elevated pressure and temperature conditions. During transient operations, variable gas/air mixtures are involved in the gas piping system. In order to predict the risk of auto-ignition events and ensure a safe operation of gas turbines, (...)

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[hal-01241155] ZnO rods/reduced graphene oxide composites prepared via a solvothermal reaction for efficient sunlight-driven photocatalysis

11 décembre 2015

Small-sized ZnO rods with an average length of ca. 180 nm and a diameter of ca. 16 nm were successfully associated to reduced graphene oxide (rGO) via a solvothermal reaction conducted in ethanol. A set of characterization including TEM, SEM, XRD, BET, Raman spectroscopy and UV–vis absorption (...)

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[hal-01238146] Prediction of Auto-Ignition Temperatures and Delays for Gas Turbine Applications

5 décembre 2015

Gas turbines burn a large variety of gaseous fuels under elevated pressure and temperature conditions. During transient operations like maintenance, start-ups or fuel transfers, variable gas/air mixtures are involved in the gas piping system. Therefore, in order to predict the risk of (...)

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[hal-01238139] Pyrolysis of n-octane at very low concentration and low temperature

5 décembre 2015

tHydrocarbon pyrolysis concerns many different fields (petroleum geochemistry, refinery, fuel thermalstability, pyrocarbon deposition, etc.). It is therefore studied in a wide variety of temperature–pressureexperimental conditions, which strongly affect the chemistry of hydrocarbons cracking.An (...)

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[hal-01235944] Trace amounts of Cu2+ ions influence ROS production and cytotoxicity of ZnO quantum dots

4 décembre 2015

3-Aminopropyltrimethoxysilane (APTMS) was used as ligand to prepare ZnO@APTMS, Cu2+-doped ZnO (ZnO:Cu@APTMS) and ZnO quantum dots (QDs) with chemisorbed Cu2+ ions at their surface (ZnO@APTMS/Cu). The dots have a diameter of ca. 5 nm and their crystalline and phase purities and composition were (...)

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[hal-01230647] Biomass Fast Pyrolysis: Influence of Biomass Nature on Products Yield

27 novembre 2015

Social Context Lignocellulosic biomass is a promising renewable resource that presents an alternative to fossil fuels and therefore leads us to achieve desirable environmental outcomes. That is why, in 2010, ADEME financed the GAYA project in France, which is coordinated by GDF-Suez with the (...)

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[hal-01232629] Theoretical and Experimental Study of the Behavior of Phenolic Compounds in Water or Ethanol

24 novembre 2015

Lignin is one of the major components of biomass and is a potential source of renewable aromatic chemicals. Some valuable compounds, such as phenol, guaiacol and syringol could be produced from lignin, but extraction and purification are still a huge issue. Moreover, few data about the physical (...)

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[hal-01232621] Description of the Aging Phenomenon of Oxygen Cariier Particles in the Chemical Looping Combustion Process

24 novembre 2015

The process of Chemical Looping Combustion necessitates the use of two reactors. In the first one, called &ldquo;fuel reactor&rdquo;, the reaction of combustion of methane with an oxygen carrier takes place (reduction step of the oxygen carrier), then, the oxygen carrier is re-oxidised (...)

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[hal-01232576] Segregation Behavior of a Mixture of Spherical Steel Balls and Wood Chips in a Rotating Tumbler with Internal Baffles

24 novembre 2015

The aim of the present work is to simulate the segregation and interaction between the two kinds of particles involved. The simulation is made using the Discrete Elements Method (Ref 1) implemented in the Open Software LIGGGHTS (Ref 2). The wood chips are represented using either a multisphere (...)

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[hal-01232624] From Continuous Perfectly Auto-Stirred Tank Reactor to Fixed Bed, Validation of Kinetic Laws Developed for Chemical Looping Combustion Process

24 novembre 2015

The Chemical Looping Combustion (CLC) is an oxy-combustion carbon dioxide capture process using an oxygen carrier (NiO/NiAl2O4 in this study). The combustion is realized in two steps : The first one is the combustion of methane with nickel oxide (called reduction step), the second one is the (...)

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[hal-01232591] Biomass Gasification in Air-Blown Fluidised Bed

24 novembre 2015

Lignocellulosic biomass (wood, straw, energy crops) may be converted efficiently into electricity through syngas production and combustion in a gas engine. One of the best reactor to gasify biomass at the 1-10 MW scale is the air-blown autothermal fluidized bed, but this technology is still (...)

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[hal-01232617] Biomass Gasification Modeling: From Reactions to Processes

24 novembre 2015

The thermochemical conversion of lignocellulosic biomass is still difficult to understand and model, whereas there is an industrial need for process simulation in order to conceive new plants. Accurate models are needed to predict product composition, that are often complex. In this (...)

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[hal-01230727] Temperature and heating rate of solid particles undergoing a thermal decomposition. Which criteria for characterizing fast pyrolysis?

19 novembre 2015

The main purpose of the paper is to discuss the advantages and drawbacks of the great number of conditions revealed by the literature for characterizing biomass fast pyrolysis. They are often related to temperature and heating rate. Unfortunately, significant inconsistencies exist between the (...)

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[hal-01230722] Characterization of Miscanthus pyrolysis by DRIFTs, UV Raman spectroscopy and mass spectrometry

19 novembre 2015

The aim of this work was to identify and quantify the chemical and structural modifications occurring during the pyrolysis of Miscanthus × giganteus. Miscanthus was pyrolyzed at slow heating rate (5 K/min) in the temperature range 200–400 ◦C. The biochars were then characterized by combining (...)

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[hal-01227900] Catalytic conversion of methane over a biomass char for hydrogenproduction: deactivation and regeneration by steam gasification

13 novembre 2015

CH4 decomposition over a wood char was investigated as an alternative green catalyst to produce hydrogen from hydrocarbons. Pyrolytic carbon (pyrocarbon) deposition leads to apparent deactivation of the catalyst by pore-mouth plugging. The activity of the carbon bed and its available surface (...)

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[hal-01228330] Kinetic modelling of char gasification by accounting for the evolution of the reactive surface area

13 novembre 2015

In combustion and gasification reactors, solid fuels such as coal or biomass undergo a pyrolysis step to form volatiles and a char. Pyrolysis is combined with an oxidation by O2, H2O and/or CO2 of the resultant char. Here we propose an original approach to model the oxidation of a single char (...)

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[hal-01228337] DEM investigation of granular flow and binary mixture segregation in a rotating tumbler: Influence of particle shape and internal baffles

13 novembre 2015

A horizontal rotating tumbler provided with internal baffles and containing a mixture of two types of particles is investigated by discrete element method (DEM) simulations. The main objective of this study is to characterize the dynamics of a rotary kiln containing spherical steel balls and (...)

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[hal-01227685] Photonic glass-ceramics: consolidated outcomes and prospects

13 novembre 2015

Transparent glass-ceramics are nanocomposite materials which offer specific characteristics of capital importance in photonics. This kind of two-phase materials is constituted by nanocrystals embedded in a glass matrix and the respective composition and volume fractions of crystalline and (...)

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[hal-01216231] New peptide-conjugated chlorin-type photosensitizer targeting neuropilin-1 for anti-vascular targeted photodynamic therapy

16 octobre 2015

Photodynamic therapy (PDT) is a cancer treatment modality that requires three components, namely light, dioxygen and a photosensitizing agent. After light excitation, the photosensitizer (PS) in its excited state transfers its energy to oxygen, which leads to photooxidation reactions. In order (...)

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[hal-01199815] How innovative design can contribute to Chemical and Process Engineering development? Opening new innovation paths by applying the C–K method.

17 septembre 2015

Some representations are well established in Chemical Engineering: the logic of unit oper- ations, the logic linking reaction, transfer and transport phenomena or the logic of scales (from atoms to process and even to market). Today chemical and process engineers aim to open new opportunities (...)

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[hal-01196324] Kinetic modelling of char gasification by accounting for the evolution of the reactive surface area

10 septembre 2015

In combustion and gasification reactors, solid fuels such as coal or biomass undergo a pyrolysis step to form volatiles and a char. Pyrolysis is combined with an oxidation by O2, H2O and/or CO2 of the resultant char. Here we propose an original approach to model the oxidation of a single char (...)

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[hal-01183323] Fischer 344 Rat: A Preclinical Model for Epithelial Ovarian Cancer Folate-Targeted Therapy.

9 septembre 2015

Objective: Ovarian cancer prognosis remains dire after primary therapy. Recurrence rates are disappointingly high as 60% of women with advanced epithelial ovarian cancer considered in remission will develop recurrent disease within 5 years. Special attention to undetected peritoneal metastasis (...)

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[hal-01186414] Lattice Boltzmann investigation of droplet inertial spreading on various porous surfaces

25 août 2015

The spreading of liquid drops on solid surfaces is a wide-spread phenomenon of both fundamental and industrial interest. In many applications, surfaces are porous and spreading patterns are very complex with respect to the case on smooth surfaces. Focusing on the inertial spreading just before (...)

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[hal-01183340] Assessment of the specificity of a new folate-targeted photosensitizer for peritoneal metastasis of epithelial ovarian cancer to enable intraperitoneal photodynamic therapy. A preclinical study.

11 août 2015

The prognosis of advanced epithelial ovarian cancer remains poor. The current treatment is the association of complete macroscopic cytoreductive surgery and platinum-based chemotherapy. It is accepted that the absence of residual disease after surgery is a key to improve prognosis. 60 % of (...)

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[hal-01178244] Experimental and Kinetic Modeling Study of 2-Methyl-2-Butene: Allylic Hydrocarbon Kinetics

21 juillet 2015

Two experimental studies have been carried out on the oxidation of 2-methyl-2-butene, one measuring ignition delay times behind reflected shock waves in a stainless steel shock tube, and the other measuring fuel, intermediate, and product species mole fractions in a jet-stirred reactor (JSR). (...)

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[hal-01178238] Experimental and modeling investigation of the low-temperature oxidation of dimethylether

21 juillet 2015

The oxidation of dimethylether (DME) was studied using a jet-stirred reactor over a wide range of conditions: temperatures from 500 to 1100 K, equivalence ratios of 0.25, 1 and 2, residence time of 2 s, pressure of 106.7 kPa (close to the atmospheric pressure) and an inlet fuel mole fraction of (...)

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[hal-01174773] La thérapie photodynamique: état de l'art et perspectives

10 juillet 2015

La thérapie photodynamique (PDT) est une méthode de traitement médical faisant appel à l’action concomitante d’une molécule photoactivable – le photosensibilisateur –, de lumière de longueur d’onde appropriée, et d’oxygène présent naturellement dans le milieu biologique. Après excitation du (...)

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[hal-01174788] Nanoparticles for radiation therapy enhancement: the key parameters

10 juillet 2015

This review focuses on the radiosensitization strategies that use high-Z nanoparticles. It does not establish an exhaustive list of the works in this field but rather propose constructive criticisms pointing out critical factors that could improve the nano-radiation therapy. Whereas most (...)

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[hal-01169277] An experimental and modeling study of the combustion of tetrahydrofuran

29 juin 2015

Tetrahydrofuran (THF) is a well suited starting point fuel to study the combustion chemistry of saturated cyclic esters that are being considered as promising bio-fuels. To better understand the combustion chemistry of THF, laminar low-pressure premixed flame structure, atmospheric adiabatic (...)

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[hal-01159545] Lanthanide ecotoxicity: First attempt to measure environmental risk for aquatic organisms

4 juin 2015

The geochemical cycles of lanthanides are being disrupted by increasing global production and human use, but their ecotoxicity is not fully characterized. In this study, the sensitivity of Aliivibrio fischeri and Pseudokirchneriella subcapitata to lanthanides increased with atomic number, while (...)

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[hal-01157894] Fe3O4@ZIF-8: magnetically recoverable catalysts by loading Fe3O4 nanoparticles inside a zinc imidazolate framework

29 mai 2015

A simple methodology for encapsulating ca. 10 nm-sized superparamagnetic Fe3O4 nanoparticles in zeolitic imidazolate frameworks (ZIF-8) crystals was developed. The corresponding Fe3O4@ZIF-8 heterostructured material exhibits bifunctional properties with both high magnetization (Fe3O4) and high (...)

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[hal-01154226] Rôle crucial des ions Cu2+ adsorbés à la surface de nanocristaux ZnO sur leur toxicité

21 mai 2015

Ces dernières années, les énormes progrès réalisés en nanotechnologie ainsi qu’en science des matériaux ont conduit à la synthèse de nombreuses nouvelles nanoparticules sans réellement connaître l’ensemble des propriétés et des risques associés à leurs dimensions. L’oxyde de zinc ZnO sous forme (...)

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[hal-01154223] Particules de TiO2 sensibilisées par des quantum dots CuInS2 pour la photocatalyse

21 mai 2015

La photocatalyse est une technologie d'oxydation avancée émergente qui trouve de nombreux domaines d'application, notamment pour la purification des effluents et de l’air. La photocatalyse repose sur le principe d'activation d'un semi-conducteur à l'aide de l'énergie apportée par la lumière et les (...)

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[hal-01153726] Amine ligands control of the optical properties and the shape of thermally grown core/shell CuInS2/ZnS quantum dots

21 mai 2015

A series of CuInZnxS2+x QDs has been successfully synthesized via a non-injection method by varying the amine (oleylamine, dioctylamine, dodecylamine, octadecylamine) during the ZnS shell introduction on the CuInS2 core. The effects of these amines on the photoluminescence (PL) and on the (...)

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[hal-01150835] Nanoparticles for radiation therapy enhancement: the key parameters

12 mai 2015

This review focuses on the radiosensitization strategies using high-Z nanoparticles (NPs) and parameters affecting the enh

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[hal-01144243] Comparison study of the gas-phase oxidation of alkylbenzenes and alkylcyclohexanes

22 avril 2015

The goal of this paper is to present new experimental results obtained during the study of the gas phase oxidation of ethyl-benzene, n-hexyl-benzene, ethyl-cyclohexane and n-butyl-cyclohexane which belongs to two molecule families present in diesel fuels: alkylbenzenes and alkylcyclohexanes. (...)

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[hal-01132326] Visualizing the molecular recognition trajectory of an intrinsically disordered protein using multinuclear relaxation dispersion NMR.

19 mars 2015

Despite playing important roles throughout biology, molecular recognition mechanisms in intrinsically disordered proteins remain poorly understood. We present a combination of (1)H(N), (13)C', and (15)N relaxation dispersion NMR, measured at multiple titration points, to map the interaction (...)

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[hal-01096721] Multifunctional ultrasmall nanoplatforms for vascular-targeted interstitial photodynamic therapy of brain tumors guided by real-time MRI

3 mars 2015

Photodynamic therapy (PDT) for brain tumors appears to be complementary to conventional treatments. Number studies show the major role of the vascular effect in the tumor eradication by PDT. For interstitial PDT (iPDT) of brain tumors guided by real-time imaging, multifunctional nanoparticles (...)

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[hal-01115681] Multifunctional ultrasmall nanoplatforms for vascular-targeted interstitial photodynamic therapy of brain tumors guided by real-time MRI

3 mars 2015

Photodynamic therapy (PDT) for brain tumors appears to be complementary to conventional treatments. A number of studies show the major role of the vascular effect in the tumor eradication by PDT. For interstitial PDT (iPDT) of brain tumors guided by real-time imaging, multifunctional (...)

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[hal-01092333] Catalytic conversion of methane over a biomass char for hydrogenproduction: deactivation and regeneration by steam gasification

11 février 2015

CH4 decomposition over a wood char was investigated as an alternative green catalyst to produce hydro-gen from hydrocarbons. Pyrolytic carbon (pyrocarbon) deposition leads to apparent deactivation of thecatalyst by pore-mouth plugging. The activity of the carbon bed and its available surface (...)

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[hal-01108682] How nanoparticles can solve resistance and limitation in PDT efficiency

25 janvier 2015

PDT efficiency photosensitizers can be improved by different ways: development of targeted photosensitizers that also present rapid clearance from normal tissues, photosensitizers that own better photophysical properties (such as absorption in the red to use light that can better penetrate (...)

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[hal-01107245] Dry Purification by Natural Adsorbents of Ethyl Biodiesels Derived from Nonedible Oils

21 janvier 2015

The purpose of this work is to analyze the efficiency of natural adsorbents (rice husk ash (RHA) versus corn husk ash (CHA)) for the dry purification of ethyl biodiesels obtained by transesterification via homogeneous catalysis of nonedible oils (Balagnites aegyptiaca, Azadirachta indica, and (...)

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[hal-01107487] Temperature and heating rate of solid particles undergoing a thermaldecomposition. Which criteria for characterizing fast pyrolysis?

21 janvier 2015

The main purpose of the paper is to discuss the advantages and drawbacks of the great number of con-ditions revealed by the literature for characterizing biomass fast pyrolysis. They are often related totemperature and heating rate. Unfortunately, significant inconsistencies exist between the (...)

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[hal-01099843] The oxidation of large alkylbenzenes: An experimental and modeling study

9 janvier 2015

This paper describes the first development of detailed kinetic models for the alkylbenzenes actually present in diesel fuels. Thanks to a new version of the software EXGAS dedicated to alkylbenzenes, the first detailed models for the oxidation of alkylbenzenes with an alkyl chain containing (...)

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[hal-01099836] Experimental and modeling study of burning velocities for alkyl aromatic components relevant to diesel fuels

9 janvier 2015

Aromatic species represent a significant fraction (about one third by weight) of both diesel and gasoline fuels. Much of the aromatics in diesel and gasoline are alkyl-benzene species. Although toluene, the lightest of the alkyl-benzenes, has been the subject of extensive literature (...)

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[hal-01069257] Stability and toxicity of ZnO quantum dots: Interplay between nanoparticles and bacteria

29 septembre 2014

The toxicity of quantum dots (QDs) has been commonly attributed to the release of metal ions from thecore as well as to the production of reactive oxygen species. However, the information related to the stability of the nanoparticles are relatively scarce although this parameter may strongly (...)

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