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Transient Radiation-Conductive Heat transfer Problems:"The Quadrupole Method"

Journal of Thermal Science 2002年第4期11卷 359-371页

作者： Alain Degiovanni Benjamin Remy stephane Andre Laboratoire d'Energetique et de Mecanique Theorique et Appliquee L.E.M.T.A-U.M.R C.N.R.S 7563/E.E.I.G.M-E.N.S.E.MUniversite Henri Poincare-Nancy IInstitut National Polytechnique de Lorraine(I.N.P.L)02avenue de la Foret de Haye-B.P 16054516 Vandoeuvre-Les-Nancy CedexFrance

This paper presents a statement of the works performed in L.E.M.T.A by the members of the thermal and mechanical heterogeneous media research group during the last six years concerning the solving of coupled conductive and radiative heat transfers within a multilayer and semi-transparent“wall”.Out of the authors,this paper allows to take inspiration from the works of ***,*** and ***[19,20,21].The aim of these works is to represent in a macroscopic way,with the minimum number of thermophysical parameters,the heat transfers in a plane system composed of semi-transparent *** approach we propose is semi-analytic(Kernel substitution technique,Laplace transformation)and allow to obtain in the Laplace domain an analytical solution that can be easily *** method can be applied in two main scopes of applications:the estimation of thermophysical properties(phononic conductivity,optical thickness,Planck number for instance)of semi-transparent materials(glasses,crystals,glass wool,semi-conductors,synthetic diamonds,vitroceramics and so on)and the modelling of processes with semitransparent walls(for instance bottles forming,flat glass production,drying of paper).The method will be first presented and validated and two examples of applications will be then *** method can be applied to semitransparent walls that emit,absorb and scatter the radiant energy(participating medium).It appears from the principle of a Kernel substitution technique applied to the radiative flux expression and initially introduced by Lick[1]that allows to change the character of the governing heat equation from the integro-differential form to a purely differential *** the case of limiting cases of purely scattering and purely absorbing media,the solution of the radiative transfer equation is *** the general case,we make a two-flux *** all cases,we assume a linear transfer and use the Laplace *** method can be applied to grey or grey by bands

关键词： heat conduction thermal radiation coupled heat transfer quadrupole method

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Impact of Business Practices on Individual Energy Consumption

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Journal of Electronic Science and Technology 2015年第4期13卷 349-354页

作者： stephane Egger Mario Gstrein Stephanie Teufel International Institute of Management in Technology University of Fribourg

Changing behaviours and attitudes towards more sustainable individual energy consum- ption is a difficult topic to address. After identifying the most recurrent factors influencing bad energy consum- ption-society＇s environmental short- sightedness, a lack of individual responsibility and a tendency to put responsibility upon firms, institutions, and governments, the authors evaluated the effect business practices can have on individual behaviour. By qualifying as highly credible sources of information, positioning themselves as examples to follow and providing its employees with the necessary smart, innovative technology, business communities can have a major impact on changing individual behaviours towards more sustainable energy consumption.

关键词： Business practices individualbehaviour sustainable energy consumption.

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Beyond Character： Werner Sombart, Max Weber and the Question of the Subjective Roots of Participation in Capitalism

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Fudan Journal of the Humanities and Social Sciences 2017年第4期10卷 473-483页

作者： stephane Haber Universite Paris Nanterre 200 Avenue de la Republique 92001 Nanterre France

The article aims to highlight the topicality of the old controversy between Werner Sornbart and Max Weber upon the origins of Western capitalism. Is its emergence explained by an universal passion for luxury and money or by the advent of new religious forms favorable toward saving and investment？ The article shows that what characterizes capitalism today is the extreme variety of the life forms, and therefore the fragmentation of the forms of personality, which can favor capitalism or be absorbed in it. This observation provides the means to evaluate, with a fresh look, the conclusions of one of the most famous and constitutive discussions in the history of modern European sociology.

关键词： Sombart Wemer - Weber Max Personality Capitalism . Psychologyand anthropology of capitalism

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Private Label Positioning and Product Line

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Frontiers of Economics in China-Selected Publications from Chinese Universities 2017年第3期12卷 480-513页

作者： stephane Caprice Toulouse School of Economics INRA University of Toulouse Capitole Toulouse France

This article examines （i） how retailers position private label products, （ii） why private labels are sold in some product categories but not in others, and why some national brand products may have difficulty in accessing retailers＇ shelves, （iii） why some private label products are positioned as ＂premium＂ brands, and （iv） how consumers＇ surplus and total welfare are affected by private labels. We find that private label positioning leads to less differentiation in product category, which structurally changes a retailer＇s product line in return. Consumer welfare and total welfare are lower

关键词： private label national brand product line

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An Entropic Scheme for an Angular Moment Model for the Classical Fokker-Planck-Landau Equation of Electrons

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Communications in Computational Physics 2014年第2期15卷 422-450页

作者： Jessy Mallet stephane Brull Bruno Dubroca Univ.Bordeaux CELIAUMR 5107F-33400 TalenceFrance. Univ.Bordeaux IMBUMR 5251F-33400 TalenceFrance.

In plasma physics domain,the electron transport is described with the FokkerPlanck-Landau *** direct numerical solution of the kinetic equation is usually intractable due to the large number of independent *** is why we propose in this paper a new model whose derivation is based on an angular closure in the phase space and retains only the energy of particles as kinetic *** find a solution compatible with physics conditions,the closure of the moment system is obtained under a minimum entropy *** model is proved to satisfy the fundamental properties like a H *** an entropic discretization in the velocity variable is proposed on the semi-discrete ***,we validate on numerical test cases the fundamental properties of the full discrete model.

关键词： Entropy minimization Landau-Fokker-Planck equation moment systems entropic scheme.

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A mathematical model in closed for unsteady mixed flows water pipes Dedicated to the NSFC-CNRS Chinese-French summer institute on fluid mechanics in 2010

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Science China Mathematics 2012年第2期55卷 221-244页

作者： BOURDARIAS Christian ERSOY Mehmet GERBI stephane Laboratoire de Mathdmatiques Universitd de Savoie Le Bourget du Lac 73376 France Basque Center for Applied Mathematics Bizkaia Technology Park Derio Basque Country 48160 Spain Institut des Mathematiques de Toulon et du Vat Universite du Sud Toulon-Var La Garde Cedex 83957 France

We present the formal derivation of a new unidirectional model for unsteady mixed flows in nonuniform closed water pipes. In the case of free surface incompressible flows, the FS-model is formally obtained, using formal asymptotic analysis, which is an extension to more classical shallow water models. In the same way, when the pipe is full, we propose the P-model, which describes the evolution of a compressible inviscid flow, close to gas dynamics equations in a nozzle. In order to cope with the transition between a free surface state and a pressured （i.e., compressible） state, we propose a mixed model, the PFS-model, taking into account changes of section and slope variation.

关键词： shallow water equations unsteady mixed flows free surface flows pressurized flows curvilinear transformation asymptotic analysis

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Shape Controllable Preparation of Submicronic Cadmium Tetrazole-Based Metal-Organic Frameworks via Solvothermal or Microwave-Assisted Methods and Their Photocatalytic Studies

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Chinese Journal of Chemistry 2017年第2期35卷 209-216页

作者： Arti Chouhan Guillaume Pilet stephane Daniele Ashutosh Pandey Department of Chemistry MNNIT Allahabad Allahabad 211004 India LMI UMR CNRS 5615 University Claude Bernard-Lyon 1 69622 Villeurbanne cedex France IRCELYON UMR CNRS 5256 University Claude Bernard-Lyon 1 69626 Villeurbanne cedex France

The paper describes the experiments conducted to create shape controllable preparations of submicronic cad- mium tetrazole-based MOFs. In order to prepare the submicron sized blocks and tubes of bis[5-（2-pyridyltetrazo- lato）]diaquacadmium（II） [（2-PTZ）2Cd（H20）2] MOFs both solvothermal and microwave augmented reaction proce- dures have been followed. Cadmium nitrate tetrahydrate, cyanopyridine and sodium azide were used as reactants in both the conditions without any surfactants or modulators. Subsequently, IR spectroscopy and single-crystal X-ray crystallographic studies were performed on the prepared MOFs. Examinations using scanning electron microscopy and X-ray powder diffraction of the products made by the microwave method showed formation of bundles of reg- ular submicrotubes, as opposed to the submicron-sized irregular blocks of the Cd-MOF obtained through the sol- vothermal method. The fluorescence peak of the sub-microtube MOF was found at 460 nm while the irregu- lar-blocks emitted at 442 nm indicating a red shift for the former. In addition, the relative intensity of the peak at 460 nm was higher in the former, indicating a decrease in the crystallite size. Band gaps of the MOFs calculated by using the Tauc plots were 2.87 and 2.73 eV, respectively. Their photocatalytic performances using methylene blue under UV-vis irradiation have been investigated.

关键词： cadmium microwave synthesis solvothermal synthesis submicrotube photocatalysis

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Axon guidance in regeneration of the mature central nervous system:step by step

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Neural Regeneration Research 2023年第12期18卷 2665-2666页

作者： Julia Schaeffer Noemie Vilallongue stephane Belin Homaira Nawabi Univ.Grenoble Alpes InsermU1216Grenoble Institut NeurosciencesGrenobleFrance

Unlocking axon regeneration in the injured central nervous system:In adult mammals,central nervous system(CNS)neurons fail to regenerate a?ter a lesion,whether it is traumatic–after spinal cord injury for example–or... 详细信息

关键词： traumatic system regeneration

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中华医学会-欧莱雅中国人健康皮肤/毛发研究项目成果总结——皮肤篇

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中华皮肤科杂志 2024年第5期57卷 464-467页

作者： Michele Verschoore 牛悦青 Stéphane Commo Léopold Muller 魏宇昊甄雅贤刘玮欧莱雅研发和创新中心法国克里希92110 欧莱雅研发和创新中心上海201206 欧莱雅研发和创新中心法国欧奈苏布瓦93600 欧莱雅研发和创新中心美国克拉克07066 空军特色医学中心皮肤科北京100142

中华医学会和欧莱雅集团在2003-2018年间联合启动了“中国人健康皮肤/毛发研究项目”,该项目在助力提高中国皮肤科医生科研能力的同时,获得了大量宝贵的基于中国人群样本的临床和基础研究成果,并以期刊论文、会议报告等形式多次参与国... 详细信息

中华医学会和欧莱雅集团在2003-2018年间联合启动了“中国人健康皮肤/毛发研究项目”,该项目在助力提高中国皮肤科医生科研能力的同时,获得了大量宝贵的基于中国人群样本的临床和基础研究成果,并以期刊论文、会议报告等形式多次参与国内和国际学术交流。本文作者通过整理项目资料和已发表文献,对皮肤相关研究项目的主要成果做一总结.

关键词：皮肤生理学过程皮肤衰老皮肤色素沉着皮肤免疫研究报告

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老普林尼;两千年前的远见

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环球科学 2024年第5期 56-61页

作者：斯特凡纳·施米特戚译引(译) 法国国家科学研究中心(CNRS)亨利-庞加莱档案馆不详

这篇来自《科学美国人》法国版的文章再次解读了《博物志》:这是一部关于古典时代的人们如何认识和利用自然的独特档案,也是一份对自然资源耗竭的预警。公元23年,老普林尼(Pline I'Ancien)出生,公元79年,他在维苏威火山喷发中死去。但... 详细信息

这篇来自《科学美国人》法国版的文章再次解读了《博物志》:这是一部关于古典时代的人们如何认识和利用自然的独特档案,也是一份对自然资源耗竭的预警。公元23年,老普林尼(Pline I'Ancien)出生,公元79年,他在维苏威火山喷发中死去。但老普林尼不仅留下了他死亡时的壮烈故事,还留下了巨著《博物志》(Naturalis historia),其中汇集了当时关于自然事物及其用途的所有知识。

关键词：《博物志》古典时代维苏威火山普林尼《科学美国人》档案

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