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A Revised Interpretation of the Thermodynamic Theory Including the Einstein Mass-Energy Relation E= mc2

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Journal of Applied Mathematics and Physics 2020年第3期8卷 392-405页

作者： jean-louis Tane Formerly with the Department of Geology University of Grenoble Grenoble France

Thermodynamics being among the most synthetic theories of physics and the mass-energy relation E = mc2 among the most general equations of science, it is somewhat surprising that this latter is not explicitly present in the laws of thermodynamics. Coupling this observation with the conceptual difficulties often felt in learning thermodynamics leads to the idea that both situations may have the same cause. On the basis of these clues, this paper is intended to provide complementary arguments to a hypothesis already presented. It consists of showing the existence of an imperfect compatibility between the conventional formulations of the first and second laws of thermodynamics and suggesting the need of the mass-energy relation to solving the problem.

关键词： Thermodynamics Entropy Energy Einstein’s Mass-Energy Relation Relativity

The Reasons Suggesting a Close Link between Thermodynamics and Relativity

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Journal of Applied Mathematics and Physics 2017年第9期5卷 1710-1719页

作者： jean-louis Tane Formerly with the Department of Geology University Joseph Fourier Grenoble France

Since the advent of relativity, it is widely accepted that the law of conservation of energy must include the energy created by disintegration of matter, or converted into matter. The aim of the present paper deals wi... 详细信息

关键词： Thermodynamics Relativity Energy Entropy Einstein’s Mass-Energy Relation Gravitation

An Extended Interpretation of the Concept of Entropy Opening a Link between Thermodynamics and Relativity

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Natural Science 2014年第7期6卷 503-513页

作者： jean-louis Tane Formerly with the Department of Geology University Joseph Fourier Grenoble France

It is well known that thermodynamics raises conceptual difficulties. Far to be limited to students having to learn the subject, this impression is sometimes mentioned by specialists themselves who confess not being totally sure of the consistency of the thermodynamic theory, despite the fact that its practical usefulness is indisputable. The present paper deals with this interesting question and leads to the idea that there is an imperfect convergence between the way of using the thermodynamic tool and the way of understanding its significance. Illustrated by a very simple example, the discussion can be followed by every scientist having the fundamental basis in thermodynamics. The suggested hypothesis is that the Einstein mass-energy relation is closely associated to the concept of entropy, opening a link between thermodynamics and relativity.

关键词： Thermodynamics Reversibility Irreversibility Energy Entropy Einstein’s Mass-Energy Relation Relativity Gravitation

微滤处理对Mozzarella干酪液相组成及微观结构的影响

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哈尔滨工业大学学报 2009年第8期41卷 50-55页

作者：董晶莹马莺陈历俊 jean-louis Maubois 哈尔滨工业大学食品科学与工程学院哈尔滨150080 北京三元食品股份有限公司技术中心北京100085 Laboratoire de Recherches de Technologie LaitiSre INRA 65 rue de Saint Brieuc 35042 Rennes Cedex France

为研究微滤处理对Mozzarella干酪的影响,采用液压压榨技术及扫描电镜技术对其4℃,10d成熟期间液相含量及微观结构进行研究.对照组及微滤组Mozzarella干酪的理化成分(除水分、钙、磷外)差异不显著(p>0.05).两组干酪的液相含量/水分含量... 详细信息

为研究微滤处理对Mozzarella干酪的影响,采用液压压榨技术及扫描电镜技术对其4℃,10d成熟期间液相含量及微观结构进行研究.对照组及微滤组Mozzarella干酪的理化成分(除水分、钙、磷外)差异不显著(p>0.05).两组干酪的液相含量/水分含量随着成熟期的延长而减少,液相部分的蛋白质含量微滤组低于对照组,而缓冲能力高于对照组.扫描电镜结果显示,随着成熟期的进行,蛋白质基质吸收游离水分,液相通道变窄.对照组Mozzarella干酪的蛋白质基质更加平滑和均一,通道更加多孔等微观现象反应出微滤浓缩对干酪的影响源于干酪用乳的不同.

关键词：微滤 Mozzarella干酪液相微观结构扫描电镜

Aggregation behavior of Harmonia axyridis under non-wintering conditions

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Insect Science 2015年第5期22卷 670-678页

作者： Delphine Durieux Berenice Fassotte jean-louis Deneubourg Yves Brostaux Axel Vandereycken Emilie Joie Eric Haubruge Frangois J. Verheggen Functional and Evolutionary Entomology Gembloux Agro-Bio Tech University of Liege Gembloux Belgium Unit of Social Ecology Universite libre de Bruxelles Brussels Belgium and Applied Statistics Computer Science and Mathematics Gembloux Agro-Bio Tech University of Liege Gembloux Belgium

The invasive multicolored Asian ladybeetle, Harmonia axyridis （Pallas）（Coleoptera： Coceinellidae）, aggregates inside dwellings during winter to avoid cold weather. This adaptive behavior disturbs homeowners, because of the large numbers of individuals that aggregate, which induces allergic reactions. The migratory flight patterns of this species have been well documented, with individuals preferentially moving toward prominent and high color contrast elements. However, the factors involved in the selection of aggregation sites by this species have yet to be elucidated. Here, we evaluated the influ- ence of （i） the density of individuals and （ii） the type of available shelters on decisions by H. axyridis to settle and aggregate under shelters. A dual choice bioassay conducted in the laboratory demonstrated the presence of mutual attraction to conspecifics. We also found that individuals preferentially settled under red covered shelters compared to transparent shelters, and that the type of shelter outweighed the effect of social interactions among conspecifics. Moreover, this experiment was performed under non-wintering conditions, providing the first evidence that aggregative behavior in this species can also occur under those specific conditions.

关键词： group effect invasive species luminosity multicolored Asian ladybeetle shelter selection social behavior

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陶瓷膜微滤分离酪蛋白与乳清蛋白

哈尔滨工业大学学报 2009年第6期41卷 78-81页

作者：董晶莹马莺陈历俊 jean-louis Maubois 哈尔滨工业大学食品科学与工程学院哈尔滨150080 北京三元食品股份有限公司技术中心北京100085 Laboratoire de Recherches de Technologie Laitier INRA 65 rue de Saint Brieuc 35042 Rennes Cedex France

为解决干酪加工过程中乳清的处理问题,选用0.14μm的陶瓷膜将脱脂乳中的酪蛋白和乳清蛋白分开,将干酪加工过程的乳清这一"副产物"转变成"联产物".确定的分离操作条件为:温度50℃,流速5m/s,跨膜压力为0.5bar.随着浓缩因子的增加,总蛋白... 详细信息

为解决干酪加工过程中乳清的处理问题,选用0.14μm的陶瓷膜将脱脂乳中的酪蛋白和乳清蛋白分开,将干酪加工过程的乳清这一"副产物"转变成"联产物".确定的分离操作条件为:温度50℃,流速5m/s,跨膜压力为0.5bar.随着浓缩因子的增加,总蛋白、酪蛋白、总固形物、脂肪及钙的质量分数均显著地增加.该过程得到的透过液无菌、无脂,为天然状态的"理想"乳清,为后续高附加值产品的生产提供了便利,具有广阔的市场前景.采用预酸化步骤可以有效地降低截留液中钙的质量分数,从而降低干酪加工过程可能存在的缺陷问题.

关键词：微滤酪蛋白乳清蛋白预酸化

乳源酵母Pichia fermentans的抗氧化特性

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哈尔滨工业大学学报 2010年第2期42卷 292-296页

作者：陈历水马莺 jean-louis MAUBOIS 刘巧红哈尔滨工业大学食品科学与工程学院哈尔滨150090 法国农业科学研究院雷恩乳品中心雷恩法国35042

为得到新的天然抗氧化剂,采用DPPH法和抑制脂质过氧化法对11株来源于牛乳的酵母菌抗氧化活性进行测定,包括他们的完整细胞和无细胞提取物,发现Pichia fermentans BY5有较好的抗氧化活性.分析不同条件下*** BY5细胞提取物的抗氧化活性,... 详细信息

为得到新的天然抗氧化剂,采用DPPH法和抑制脂质过氧化法对11株来源于牛乳的酵母菌抗氧化活性进行测定,包括他们的完整细胞和无细胞提取物,发现Pichia fermentans BY5有较好的抗氧化活性.分析不同条件下*** BY5细胞提取物的抗氧化活性,发现培养基的起始pH值、培养时间、培养基种类对酵母菌的抗氧化活性和蛋白质含量影响显著(P<0.05);而抗氧化活性与蛋白质含量显著相关(P<0.01).将酵母BY5在pH6的麦芽培养基中培养2d后清除DPPH活性可达60%;在pH6的YPD培养基中培养4d后抑制脂质过氧化能力达到74%.

关键词： Pichia fermentans 抗氧化活性蛋白质原料乳

Joint Management of Shared Resources, Issues and Conflicts of the Nso and Oku Tribes in the Ngongbaa Montane Forest Area, NWR of Cameroon

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Natural Resources 2024年第6期15卷 149-172页

作者： jean-louis Tatah Elvis Kah Department of Geography Faculty of Arts Letters and Social Sciences University of Yaounde I Yaounde Cameroon School of Geology and Mining Engineering University of Ngaoundere Ngaoundere Cameroon

Wherever people live together in or near homelands that harbour joint natural resources such as forest, water, minerals, oil etc., they must collaborate, co-exist and share these resources irrespective of their genetic, social, cultural, and political peculiarities. This is not always the case when self-interest, ethnic divisions, elitist politics, economic interest and power tussle set in. The Nso and Oku people who reside in the Ngongbaa Forest area constitute an example of joint management of resources where at one period, their relationship over the management of the Oku Mountain Forest was cordial and at another, the relationship became conflictive. This study was designed to study the influence of the KIFP forest management policies on the Nso indigenous forest Management system in Ngongbaa Forest, and its implications. The data collected for the study was secured through the administration of a questionnaire to residents of 10 villages adjacent to the Ngongbaa Forest, and forest users who carried out livelihood activities there between 1963 and 2015. These forest user groups include beekeepers, rat trappers, grazers, mushroom gatherers, ground honey/tree honey harvesters, carvers, etc. The investigation also extended to the traditional leaders of Nso and Oku who are in charge of the land tenure systems. The findings show that the Oku Mountain Forest is jointly owned by the Nso and Oku people. The Nso own the eastern half of the forest known as Ngongbaa Forest while the Oku own the western half, known as the Kilum Forest. The cordial relationship that existed between these people ensured the conservation of the forest. But the conflicts that later set in, especially due to the creation of the Kilum Mountain Forest Project in 1987 later changed to the Kilum Ijim Forest Project (KIFP) in 1992 sidelined the local communities which was contrary to the dispositions of the new Cameroon forest law enacted in 1994. Thus, the indigenous conservation practices became ig

关键词： Conflict Joint Management Shared Resources Ngongbaa Kilum Conservation

Sliding walls: a new paradigm for fluidic actuation and protocol implementation in microfluidics

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Microsystems & Nanoengineering 2020年第1期6卷 1093-1102页

作者： Bastien Venzac Yang Liu Ivan Ferrante Pablo Vargas Ayako Yamada Remi Courson Marine Verhulsel Laurent Malaquin jean-louis Viovy Stephanie Descroix Laboratoire Physico Chimie Curie Institut CuriePSL Research UniversityCNRS UMR16875005 ParisFrance Sorbonne Universites UPMC Univ Paris 0675005 ParisFrance Institut Pierre-Gilles de Gennes PSL Research University75005 ParisFrance Institut Curie PSL Research UniversityCNRS UMR 14475005 ParisFrance LAAS-CNRS Universitéde ToulouseCNRS31400 ToulouseFrance

Currently,fluidic control in microdevices is mainly achieved either by external pumps and valves,which are expensive and bulky,or by valves integrated in the *** types of internal valves or actuation methods have been proposed,but they generally impose difficult compromises between performance and fabrication *** propose here a new paradigm for actuation in microfluidic devices based on rigid or semi-rigid walls with transversal dimensions of hundreds of micrometres that are able to slide within a microfluidic chip and to intersect microchannels with hand-driven or translation stage-based *** this new concept for reconfigurable microfluidics,the implementation of a wide range of functionalities was facilitated and allowed for no or limited dead volume,low cost and low *** demonstrate here several fluidic operations,including on/off or switch valving,where channels are blocked or reconfigured depending on the sliding wall *** valves sustain pressures up to *** and reversible compartmentalisation of large microfluidic chambers were also *** last possibility was applied to a“4D”migration assay of dendritic cells in a collagen ***,sliding walls containing a hydrogel-based membrane were developed and used to concentrate,purify and transport biomolecules from one channel to another,such functionality involving complex fluidic transport patterns not possible in earlier microfluidic ***,this toolbox is compatible with“soft lithography”technology,allowing easy implementation within usual fabrication workflows for polydimethylsiloxane *** new technology opens the route to a variety of microfluidic applications,with a focus on simple,hand-driven devices for point-of-care or biological laboratories with low or limited equipment and resources.

关键词： walls hundreds operations