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Ferroelectric solid solution Li1-xTa1-xWxO3 as potential photocatalysts in microbial fuel cells:Effect of the W content

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Chinese Journal of Chemical Engineering 2018年第9期26卷 1985-1991页

作者： Abdellah Benzaouak Nour-eddine Touach V.M.Ortiz-Martinez M.J.Salar-Garcia F.Hernandez-Fernandez A.P.de los Rios Mohammed El Mahi El Mostapha Lotfi Laboratory of Mechanics and Industrial Processes Chemical Sciences Research TeamENSETMohammed V University in RabatMorocco Department of Chemical and Environmental Engineering Technical University of CartogenaCampus Muralla Del Mar MurdaSpain

Microbial fuel cells(MFCs)are bio-electrochemical systems that can directly convert the chemical energy contained in an effluent into bioelectricity by the action of *** performance of these devices is heavily impacted by the choice of the material that forms the *** work focuses on the assessment of ferroelectric and photocatalytic materials as a new class of non-precious catalysts for MFC cathode construction.A series of cathodes based on mixed oxide solid solution of LiTaO_3with WO_3formulated as Li_(1-x)Ta_(1-x)W_xO_3(x=0,0.10,0.20 and0.25),were prepared and investigated in *** catalyst phases were synthesized,identified and characterized by DRX,PSD,MET and UV–Vis absorption *** cathodes were tested as photoelectrocatalysts in the presence and in the absence of visible light in devices fed with industrial *** results revealed that the catalytic activity of the cathodes strongly depends on the ratio of substitution of W^(6+)in the LiTaO_*** maximum power densities generated by the MFC working with this series of cathodes increased from60.45 mW·m^(-3)for x=0.00(LiTaO_3)to 107.2 mW·m^(-3)for x=0.10,showing that insertion of W^(6+)in the tantalate matrix can improve the photocatalytic activity of this ***,MFCs operating under optimal conditions were capable of reducing the load of chemical oxygen demand by 79%(COD_(initial)=1030 mg·L^(-1)).

关键词： Ferroelectric materials Tantalate Photocathode Microbial fuel cell Bioenergy Wastewater treatment

NaI (Tl) calorimeter calibration and simulation for Coulomb sum rule experiment in Hall-A at Jefferson Lab

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Chinese Physics C 2011年第5期35卷 488-493页

作者：闫新虎 C.Alexandre 陈剑平 C.Seonho 吕海江 M.Zein-eddine Oh Yoomin S.Vincent 叶云秀姚欢 Department of Modern Physics University of Science and Technology of China Huangshan University Thomas Jefferson National Accelerator Facility Seoul National University Temple University

A precision measurment of inclusive electron scattering cross sections is carried out at Jefferson Lab in the quasi-elastic region for 4 He, 12 C, 56 Fe and 208 Pb targets. The longitudinal （R L ） and transverse （R T ） response functions of the nucleon need to be extracted precisely in the momentum transfer range 0.55 GeV/c≤ ｜ q ｜ ≤1.0 GeV/c. To achieve the above goal, a NaI （Tl） calorimeter is used to distinguish good electrons from background, including pions and low energy electrons rescattered from the walls of the spectrometer magnets. Due to a large set of kinematics and changes in HV settings, a number of calibrations are performed for the NaI （Tl） detector. Corrections for a few blocks of NaI （Tl） with bad or no signal are applied. The resolution of the NaI （Tl） detector after calibration reached δE/E^（1/2） ≈ 3% at E=1 GeV. The performance of the NaI （Tl） detector is compared with a simulation. The good calibration and background analysis for the NaI（Tl） detector are very important for the reduction of the systematic error of cross sections and the separation of R L and R T .

关键词： Coulomb sum rule NaI (T1) calibration resolution GEANT4 simulation

Identifying and Modeling Non-Functional Concerns Relationships

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Journal of Software Engineering and Applications 2010年第8期3卷 820-826页

作者： Hakim Bendjenna Pierre-Jean Charrel Nacer eddine Zarour 不详

Requirements elicitation step is of paramount importance in the requirements engineering process. In the distributed environment of so-called inter-company cooperative information system, this step is a thorny issue. To elicit require-ments for an inter-company cooperative information system, we early proposed a methodology called MAMIE (from MAcro to MIcro level requirements Elicitation) with an accompanied tool. In MAMIE methodology, requirements are the result of composing functional and non-functional concerns. Before non-functional concerns composition, it’s primary to identify relationships between them. According to the most existing approaches, a non-functional concern may have a negative, positive or null contribution on the other non-functional concerns. In this paper, we argue that using only these three contributions types is not sufficient to express relationships which may exist between non-functional concerns. Thus, we propose a process which aims to identify non-functional concerns’ relationships and model them using a fuzzy cognitive map. The resulting model is composed of non-functional concerns, relationships between them and the weight of these relationships expressed with linguistics fuzzy values. Using fuzzy cognitive maps to model non-functional concerns relationships allows moving from the conventional modelling toward developing a computer based model. An example from the textile industry is used to illustrate the applicability of our process.

关键词： Non-Functional Concerns Non-Functional Requirements Soft-Goals

Effect of Carbon Graphite on the Crystallization of Andalusite: Application to the Synthesis of Mullite and the Improvement of Refractory Quality

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Materials Sciences and Applications 2013年第6期4卷 337-346页

作者： Chaouki Sadik Iz-eddine El Amrani Abderrahman Albizane Department of Chemistry Faculty of Science and Technology University Hassan II Mohammedia-Casablanca Morocco Department of Earth Sciences Scientific Institute University Mohammed V Agdal Rabat Morocco

Different mixtures of Moroccan silica-alumina geomaterials were used for the preparation of refractory ceramics. A formula of composition (M2) has allowed obtaining a good quality of refractory. Addition of a small quantity of carbon (1%) to the M2 formula has substantially improved the quality of the refractory. The morphological, textural and mineralogical evolution, through SEM and XRD shows that the addition of carbon, which plays a catalytic role, favors the crystallization of andalusite. Then, from 1200°C, the andalusite starts to transform to primary mullite needles. At 1400°C, the mullite becomes the major mineral phase beside cristobalite and vitreous phase.

关键词： Refractory Alumina-Silica Andalusite Mullite Morocco

Evaluation of antifungal activity of free fatty acids methyl esters fraction isolated from Algerian Linum usitatissimum *** against toxigenic Aspergillus

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Asian Pacific Journal of Tropical Biomedicine 2013年第6期3卷 443-448页

作者： Amrouche Abdelillah Benmehdi Houcine Dalile Halima Chabane sari Meriem Zaaboub Imane Smahi Djamal eddine Moussaoui Abdallah Chabane sari Daoudi Laboratory of Natural Products Research(LAPRONA)University of Tlemcen Laboratory of Plant Resource Development and Food Security in Semi Arid Areas South West of AlgeriaUniversity of Bechar Faculty of Sciences and technology Department of TechnologyUniversity of Bechar 08000 Algeria

Objective:The aim of this study was to evaluate the anlilungal activity of the major fraction of fatty acids methyl esters(FAMEs)isolated from Linum usitatissimum *** oil collected from Bechar department(Algeria).Methods:The assessment ol antifungal activity was carried out in terms of percentage of radial growth on solid medium potatoes dextrose agar PDA)and biomass growth inhibition on liquid medium(potatoes dextrose broth PDB)against two ***:The FAMEs was found to be effective in inhibiting the radial mycelial growth of Aspergillus fluctis more than Aspergillus ochraceus on all tested *** highest antifungal index was found to be(54.19%]compared to Aspergillus ochraeeus(40.48%).The results of the antifungal activity of the FAMEs inhibition of bioniass on liquid medium gave no discounted results,but this does not exclude the antifungal ***:We can assume that the observed antifungal potency may be due to the abundance of linoleic andα-linolenic acids in linseed oil which appears to be promising to treat fungal infections,storage fungi and food spoilage in food industry field.

关键词： Antifungal activity FAMEs Linum usitatissimum L. Extraction Aspergillus

Experimental and simulation assessments of underwater light propagation

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Frontiers of Optoelectronics 2019年第4期12卷 405-412页

作者： Fatah ALMABOUADA Manuel Adler ABREU Joao M.P.COELHO Kamal eddine AIADI Faculte des Mathematiques et des Sciences de la Matiere Departement de PhysiqueUniversite Kasdi Merbah OuarglaOuargla 30000Algerie Centre de Developpement des Technologies Avancees Division Milieux Ionises&LasersAlger 16303Algerie Laboratorio de Optica Laser e SistemasFaculdade de Ciencias da Universidade de Lisboa Campus do LumiarEstrada do Pago do LumiarLisboa 1649-03&Portugal Faculte des Mathematiques et des Sciences de la Matiere Laboratoire LENREZAUniversite Kasdi Merbah OuarglaOuargla 30000Algerie

This paper investigates the light propagation through several types of water by experimental and *** Zemax-ray tracing software allowed to simulate the propagation of light in water and to observe the receiver response by reproducing the real conditions of *** underwater environment has been reproduced by a 1.2 m long water tube and 20 cm in diameter with a glass window fitted on one *** use of tap water with different amounts of sand leads toward three types of water with different attenuation coefficients(0.133,0.343,0.580 m^-1).The light transmission in the three types of water was experimentally evaluated using a doubled Nd:YAG laser with energy of 4.3 mJ and a pulse width of 20 *** were done between simulation and experimental results.

关键词： underwater light propagation attenuation coefficient telescope laser range finder

Effect of Clay Fines on the Behavior of Self-Compacting Concrete

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Engineering（科研） 2013年第2期5卷 213-218页

作者： Zine eddine Abib Haifa Gaher-Abib Fattoum Kharchi 不详

The technology of concrete has significantly increased in recent years through the use of super plasticizer and availability of mineral additions. One of the most recent materials used as an additive, replacing a portion of cement in concrete, is fine clay fired at a temperature of 800℃ to 900℃. This research is based on trials that complied with artificial pozzolan (waste crushed brick), and their effect on the rheological and mechanical behavior of mortar. The addition of 5% of a waste crushed brick has helped not only to improve the strength (tensile and compression), but also to foster a better rheological behavior in terms of fluidity and stability, with a low heat of hydration compared to control. However, tests of optimizing the content of self-compacting concrete (SCC) in coarse aggregates, sand and binder, led us to confirm that the combined mass of more optimal (better workability and stability) is that based on low in volumetric percentage of sand/paste with a granular skeleton richest gravel low dimensions (2/3 of G 3/8 and 1/3 of G 8/15).

关键词： Waste Crushed Brick Pozzolanic Activity Heat of Hydration Workability Strength Self Compacting Concrete

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溶于天然水中的氦、氖、氩的简化分析

地质地球化学 1989年第4期17卷 63-66页

作者： Ryuichi Sugisaki Kiyoko taki 张盛南京大学外国教材中心

本文提出了溶于天然水中氦、氖、氩的简化分析方法。简化分析方法的原理是利用气相色谱法分析与水样处于溶解平衡的气相中所含的稀有气体。这种方法不需要任何真空系统或复杂的流程。该方法适用于分析溶于水中的任何种类的气体,对氦的... 详细信息

本文提出了溶于天然水中氦、氖、氩的简化分析方法。简化分析方法的原理是利用气相色谱法分析与水样处于溶解平衡的气相中所含的稀有气体。这种方法不需要任何真空系统或复杂的流程。该方法适用于分析溶于水中的任何种类的气体,对氦的常规分析也是有用的,因为这种简化方法的灵敏度很高,故可用来测定含量低达50ppb的氦,即溶解在与空气保持平衡的水中的氦总量。

关键词：天然水氦氖氩

Performance Analysis of the Flywheel Assembly Design Using SolidWorks Modeling and Simulation Capabilities

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Smart Grid and Renewable Energy 2022年第5期13卷 109-119页

作者： Abdelbaki Abdallah Seif eddine Bendaoudi Houcine Naim Samir Habibi Laboratory of Industrial Engineering and Sustainable Development Mechanical Department University of Relizane Relizane Algeria

The flywheel energy storage system (FESS) has been rediscovered a few years ago, it is a rotary system allowing the storage and restoration of kinetic energy which has an inertia wheel. The current paper investigates an assembly design of the flywheel for durable, maintainable and optimal performance. The designed model is based on a geometrical configuration which was already studied in a previous research. Using SolidWorks modelling and simulation capabilities, the model was designed and investigated with different combination of materials. A total of 16 combinations has been tested at high speed and then analyzed in order to optimize the effect of materials on the efficiency of the flywheel and particularly on the specific energy and stress Von-Mises stress. This research shows that a good geometric design of the flywheel and selection of combination of two materials can improve its energy storage capacity. Maximum specific energy of 55,764.538 J/Kg, is observed in the flywheel of combined material which is about 13% higher than flywheel of a single material.

关键词： Flywheel Simulation Modelling Energy Storage High Mechanical Strength