Solute-surface interactions are critical in membrane science and dominate a number of diffusion and selectivity parameters. In water treatment particularly, the charge on the membrane has been shown to affect ion transport selectivity as... more
HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or... more
In this paper we estimate measurement of uncertainty for determination of Fe, Pb and Zn in natural water samples by solid-phase extraction and i nductively coupled plasma optical emission spectrometry (SPE-ICP-OES). The procedure is based... more
The purpose of incorporating an ejector into vapour compression cycle is to improve the COP by reducing the throttling loss associated with the expansion device. A computer simulation of the improved cycle is carried out using a... more
Although silicon nanoparticles dispersed in liquids are used in various applications ranging from bio-labeling to hydrogen production, their reactivities with their solvents and their catalytic properties remain still unexplored. Here, we... more
Thermoelectric (TE) materials can have a strong benefit to harvest thermal energy if they can be applied to large areas without losing their performance over time. One way of achieving large-area films is through hybrid materials, where a... more
In this study nanostructured (grain size: 81 ± 31 nm) micron-sized pure copper powder was compacted in a die using a uniaxial force at room temperature and at pressures ranging from 0.25 to 1.00 GPa. The pressure range selected was based... more
Sweet sorghum is a promising target for biofuel production. It is a C4 crop with low input requirements and accumulates high levels of sugars in its stalks. However, large-scale planting on marginal lands would require improved varieties... more
Finite‐molecular‐mass homopolymers are modeled as binary random mixtures of high polymers and oligomers or chain ends, in proportions determined by the number‐average degree of polymerization. This leads directly to an entropic equation... more
A general method for producing low-fouling biomaterials on any surface by surface-initiated grafting of polymer brushes is presented. Our procedure uses radio-frequency glow discharge (RFGD) thin film deposition followed by... more
Today, by-products generated from the agro-industrial practices are considered a key source of bioactive and functional components, that can be used for their nutritional and added value properties. New aspects concerning the use of these... more
Arum palaestinum is a wild edible plant used in food and folk medicine within the Mediterranean region including Palestine. The leaves are traditionally consumed as anti-cancerous food. Yet, just few reports are available on its chemical... more
Watermelon, Citrullus lanatus (formerly Citrullus vulgaris), is a natural and rich source of the phytochemical compounds. In this regard, the use of high-performance liquid chromatography coupled with electrosprayquadrupole-time-of-flight... more
Vicia faba (Fabaceae) is a popular food in many countries and a good source of nutrients. However, little is known about its phytochemical composition, specially referring to phenolic compounds. In the present work, the dietary... more
The second normal stress difference N 2 experienced by non-Newtonian fluids flowing in a pipe may give rise to secondary flows in the transverse direction. As a result, one component tends to encapsulate the other in stratified flows. In... more
The second normal stress difference N 2 experienced by non-Newtonian fluids flowing in a pipe may give rise to secondary flows in the transverse direction. As a result, one component tends to encapsulate the other in stratified flows. In... more
This study describes the development of an analytical methodology based on the use of microchip electrophoresis (ME) devices integrated with capacitively coupled contactless conductivity detection (C4D) for the separation and detection of... more
This report describes for the first time the use of microchip electrophoresis (ME) devices integrated with capacitively coupled contactless conductivity detection (C4D) to investigate the authenticity of seized whiskey samples, which were... more
Si-structured novel mesoporous nanocomposite catalytic materials, having quite high Pd/Si ratios, were synthesized by an acidic direct hydrothermal synthesis route. The nanocomposite catalytic materials were then characterized by XRD,... more
Max.glycerol conversion recorded at 90 0 C with C 4 olefin Dowex DR-2030 was the best catalyst for etherification of glycerol with C 4 olefin Increasing amount of catalyst increased conversion of glycerol with C 5 Max. glycerol... more
Hydrogen sulfide sorption activities of manganese oxide and Mn-Fe-Cu mixed oxide sorbents were examined in a fixed bed reactor. Sulfur retention capacity of Mn-O sorbent was found to be quite high at 600 °C both in the absence and... more
Dimethyl ether (DME), which is an excellent green diesel-fuel alternate with excellent clean burning properties, is synthesized by dehydration of methanol over novel solid acid catalysts, which are synthesized following a direct... more
Dehydration reaction of ethanol was investigated in a temperature range of 140-250 • C with three different heteropolyacid catalysts, namely tungstophosphoricacid (TPA), silicotungsticacid (STA) and molybdophosphoricacid (MPA). Very high... more
Due to its toxic and corrosive nature, H 2 S should be safely removed from the gases produced in gasification or combustion processes. In this study, adsorption of hydrogen sulfide was investigated on a natural zeolite, namely... more
Tungstophosphoric acid (TPA) incorporated silicate structured new mesoporous catalysts were synthesized following one-pot hydrothermal and impregnation procedures. Surface area of TPA@MCM-41, which was prepared by impregnating TPA into... more
The role electrical charge plays in determining glomerular permeability to macromolecules remains unclear. If the glomerular basement membrane (GBM) has any significant role in permselectivity, physical principles would suggest a... more
The physiology of glomerular permselectivity remains mechanistically obscure, despite its importance in human disease. Although electrical contributions to glomerular permselectivity have long been considered important, two recent reports... more
Use of emulsion liquid membrane (ELM) extraction of uranium(VI) from lean streams containing nitric acid using tri-n-butyl phosphate (TBP) suffers from major drawback that TBP transports nitric acid to the strip phase, thereby reducing... more
In this paper, the liquid emulsion membrane extraction of molybdenum(VI) has been conducted in static mixer. The performance in LEM mode is compared to a conventional solvent extraction mode. The rate of extraction in LEM mode is found to... more
TABLE 1.1 (continued) No. Reaction system Ftuidized crystallization processes Production of acetylene Production of gas hydrates Melting of gas hydrates Reaction of phsophides with water Manufacture of calcium hypophosphite Carbonation of... more
Application of the liquid emulsion membrane (LEM) technology to the industrial scale is hindered by the challenges imposed by stability of the emulsion during the transfer of the solute (pertraction). One of the important factors which... more
Pervaporation is proved to be a commercially viable membrane separation process by this time. However, to become a widely applied process in the industry it is of crucial importance to develop membrane properties, process and module... more
Methanol is considered as a renewable energy source for fuel processor-fuel cell systems. The determination of the kinetics of methanol autothermal partial oxidation can be simplified if the problem is divided into subproblems. As a first... more
This work presents a process design methodology that evaluates the distillation systems based on exergetic, economic, and greenhouse gas (GHG) emission aspects. The aim of the methodology is to determine how these three features should be... more
Dodecyl benzene sulfonic acid (DBSA) doped polyaniline (PANI-DBSA) has been synthesized by chemical oxidative polymerization of aniline monomer in the presence of DBSA. The UV-visible spectroscopy and X-ray diffraction measurements... more
Methyl tertiary-butyl ether (MTBE), a semi volatile organic compound used as a gasoline additive, has been extensively detected in surface and groundwater and therefore became a major issue as an environmental pollutant. The removal of... more
Physicochemical properties of Swietenia humilis Zucc seed oils were determined along with its fatty acid composition, by using gas-liquid chromatography. The oil content found in the germ portion of the seeds was 45.38%. From... more
The development, scope, and functionality of the Web-based ionic liquids database, ILThermo, are described. The database is available free to the public and aims to provide users worldwide with up to date information from publications of... more
A quality assessment algorithm for vapor-liquid equilibrium (VLE) data has been developed. The proposed algorithm combines four widely used tests of VLE consistency based on the requirements of the Gibbs-Duhem equation, with a check of... more
An adiabatic calorimeter was used to measure the enthalpy of solution of 1-octyl-3-methylimidazolium tetrafluoroborate (0.0035 mol‚kg -1 to 0.02 mol‚kg -1 ) in water and in aqueous sodium fluoride of different ionic strengths (0.1 mol‚kg... more
A new method for obtaining UNIFAC group-group interaction parameters is proposed using evaluated thermophysical property data generated at the Thermodynamics Research Center (TRC) of the National Institute of Standards and Technology... more