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Analysis and Control of the Vehicle Roll Dynamics Using Sum of Squares Polynomial Approach

Journal of Systems Science & Complexity 2024年第6期37卷 2318-2346页

作者： IBEN AMMAR Imen DOUMIATI Moustapha talj reine CHOKOR Abbas MACHMOUM Mohamed ESEO-IREENA 10 Bd Jeanneteau-CS 90717Angers49107France Institut de Recherche en Energie Electrique de Nantes Atlantique IREENA UR 464237 Boulevard de l'Universite-BP406Saint-NazaireF-44602France Sorbonne Universités Universite de Technologie de CompiegneCNRSHeudiasyc UMR 7253CS 6031960203 CompiegneFrance Continental 17 Rue Paulin Talabot31100 ToulouseFrance

The safety of vehicle travel relies on good stability performance,making vehicle motion control a vital technology in *** paper focuses on investigating the impact of roll control on vehicle performance,particularly in terms of avoiding rollover and ensuring lateral *** introducing a feedback roll moment,the roll motion can be effectively *** paper considers two roll reference generators:A static one aimed at zero roll,and a dynamic one based on the vehicle's lateral *** static roll reference generator enhances stability by employing a fixed reference,particularly beneficial during routine driving *** contrast,the dynamic roll reference generator continually adapts the roll angle reference in response to real-time vehicle dynamics and driving *** proposed reference generators can be paired with varying suspension systems—Static reference could be achieved using semi-active suspensions,while the dynamic one is integrated into advanced active suspension systems,offering heightened adaptability and *** address the roll control objectives,this paper proposes a novel sum of squares(SOS)integral polynomial tracking *** proposed controller satisfies control bounds and considers control constraints during the design *** effectiveness and robustness of the proposed control scheme are evaluated through numerical simulations using a full vehicle nonlinear model in Matlab/*** results of these simulations are compared to super-twisting sliding mode and Lyapunov-based controllers.

关键词： Active suspensions lateral stability polynomial control rollover avoidance SOS approach

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Is Renewable Energy Policy in Cameroon Inclusive?

Is Renewable Energy Policy in Cameroon Inclusive?

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作者： MBENG Elisabeth reine Debora 西南大学

学位级别：硕士

由于可再生能源对环境的积极影响以及作为应对气候变化的工具,如今可再生能源正成为主要的能源来源,一些国家正在制定法律和政策利用可再生能源。在可再生能源方面,非洲国家可能不如欧洲国家先进,但我们可以看到可再生能源项目,尤其是... 详细信息

由于可再生能源对环境的积极影响以及作为应对气候变化的工具,如今可再生能源正成为主要的能源来源,一些国家正在制定法律和政策利用可再生能源。在可再生能源方面,非洲国家可能不如欧洲国家先进,但我们可以看到可再生能源项目,尤其是太阳能光伏和小水电项目取得了长足的进步。喀麦隆是愿意采用可再生能源项目并制定法律和政策以加快实施的撒哈拉以南非洲国家之一。喀麦隆的所有可再生能源项目主要遵循2011年12月14日第2011/022号电力部门的法律。但在2020年,我们看到了国家发展战略(NDS)30的实施,我们可以意识到可再生能源也上线了,可能没有预期的那么多,但至少这是一个迹象,喀麦隆政府(Go C)牢记可再生能源的重要性。在NDS-30中,可以看出可再生能源项目不仅涉及能源/电力部门,还涉及交通、健康等其他部门。因此,包括所有这些其他部门可以帮助促进经济、建设和促进为国家发展提供可持续的环境。我们的工作是突出喀麦隆不同部门的可再生能源项目,确定可再生能源政策是否具有足够的包容性以建立一个可持续发展的国家,或者所有实施的可再生能源项目是否都根据电力法进行。如今,可再生能源正在成为趋势,或者实际上是讨论能源和未来能源的主要话题,这是因为可再生能源在清洁电气化和应对气候变化方面发挥着重要作用。实施更多项目,如水力发电厂、太阳能发电厂、电动汽车甚至绿色城市,被视为通过改善健康、提供绿色就业机会以及更重要地教育人们了解可再生能源的优势和重要性来简化人们生活的手段。喀麦隆愿意通过可再生能源项目促进可再生能源,这就是我们决定专注于已经实施或未来实施的不同可再生能源项目的原因。我们针对几个行业,这些行业被视为国家发展的关键。不同的部门包括教育部门、农业、卫生甚至交通部门。在选定的不同部门中,我们决定提出喀麦隆政府在该特定部门实现可再生能源项目的目标,为什么它很重要以及该项目对整个国家的人口的影响。很容易注意到的是,大多数项目要么处于待命状态,要么即将到位。但同样重要的是要指出每个项目对社区和国家的积极影响。我们还必须展示能源效率所发挥的作用,因为重要的是要显着减少预计用电量,以应对当前和未来在匹配能源需求方面遇到的困难,同时不危及经济增长,同时继续促进电力供应和舒适度增加。我们的工作必须指出能源效率所起的作用,因此我们决定展示喀麦隆可以从有效使用能源中获得的潜在能源节约。我们确定了几个行业,如工业、第三产业、住宅甚至最终用户,而且我们认为展示可再生能源能源效率的宏观经济方面非常重要。这项工作还旨在展示如何标记相互关联的能源消耗和能源效率政策。在论文的最后一章介绍了其他一些非洲国家的能源现状和获取途径,以及非洲向可再生能源的转型在过去十年中取得了怎样的令人印象深刻的进展,许多非洲国家近年来正在努力提高可再生能源产能。总之,我们认为喀麦隆应该在其政策上开展更多工作,并通过按部门制定更多能源政策,而不仅仅是一个处理多个部门的政策框架。我们展示了GOC必须实施更多可再生能源项目的意愿,但我们觉得可以而且应该做更多的事情,但我们对取得的进展表示赞赏。此外,建议建立一个监管框架,允许发展可能促进向能源密集度较低的经济过渡的某些专业和活动。

关键词：可再生能源政策喀麦隆

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Straight and kinked InAs nanowire growth observed in situ by transmission electron microscopy

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Nano Research 2014年第8期7卷 1188-1194页

作者： Filip Lenrick Martin Ek Knut Deppert Lars Samuelson L. reine Wallenberg nCHREM/Centre for Analysis and Synthesis Lund University Lund 22100 Sweden Division of Solid State Physics Lund University Lund 22100 Sweden

Live observations of growing nanowires using in situ transmission electron microscopy （TEM） is becoming an increasingly important tool for understanding the dynamic processes occurring during nanowire growth. Here we present observations of growing InAs nanowires, which constitute the first reported in situ growth of a In-V compound in a transmission electron microscope. Real time observations of events taking place over longer growth lengths were possible due to the high growth rates of up to I nm/s that were achieved. Straight growth （mainly in 〈111〉B directions） was observed at uniform temperature and partial pressure while intentional fluctuations in these conditions caused the nanowires to form kinks and change growth direction. The mechanisms behind the kinking are discussed in detail. In situ observations of nanowire kinking has previously only been reported for nonpolar diamond structure type materials （such as Si）, but here we present results for a polar zinc blende structure （InAs）. In this study a closed cell with electron and X-ray transparent a-SiN windows was used in a conventional high resolution transmission electron microscope, enabling high resolution imaging and compositional analysis in between the growth periods.

关键词： environmental TEM nanowires in situ InAs group III-V kinking

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Compressively-strained GaSb nanowires with core-shell heterostructures

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Nano Research 2020年第9期13卷 2517-2524页

作者： Zhongyunshen Zhu Johannes Svensson Axel R.Persson reine Wallenberg Andrei V.Gromov Lars-Erik Wernersson Departm ent of Electrical and Information Technology Lund UniversityBox 11822100 LundSweden Centre for Analysis and Synthesis Lund UniversityBox 12422100 Lundt Sweden NanoLund Lund UniversityBox 11822100 LundSweden EaStCHEM School of ChemistryUniversity of EdinburghEdinburgh EH93FJUK

GaSb-based nanowires in a gate-all-around geometry are good candidates for binary p-type transistors,however they require the introduction of compressive strain to enhance the transport ***,we for the first time demonstrate epitaxial GaSb-GaASxSb1-x core-shell nanowires with a compressively strained *** axial and hydrostatic strain in GaSb core have been measured by X-ray diffraction(XRD)and Raman scattering,*** optimal sample,almost without plastic relaxation,has an axial strain of-0.88%and a hydrostatic strain of-1.46%,leading to a noticeable effect where the light hole band is calculated to be 33.4 meV above the heavy hole band at the *** valence band feature offers more light holes to contribute the transport process,and thus may provide enhanced hole mobility by reducing both the interband scattering and the hole effective *** results show that lattice-mismatched epitaxial core-shell heterostructures of high quality can also be realized in the promising yet demanding GaSb-based system.

关键词： compressive strain GaSb-GaAsxSbi-x core-shell nanowires heterostructure p-type transistors

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Chlorogenic Acid Metabolism:The Evolution and Roles in Plant Response to Abiotic Stress

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Phyton-International Journal of Experimental Botany 2022年第2期91卷 239-255页

作者： Deka reine Judesse Soviguidi Rui Pan Yi Liu Liping Rao Wenying Zhang Xinsun Yang Engineering Research Centre of Ecology and Agricultural Use of Wetland Ministry of EducationHubei Collaborative Innovation Center for Grain IndustryYangtze UniversityJingzhou434025China Hubei Sweetpotato Engineering and Technology Research Centre Hubei Academy of Agricultural SciencesWuhan430064China

During the evolution,plants acquired the ability to synthesize different phenylpropanoid compounds like chlorogenic acid(CGA),which plays vital roles in resistance mechanisms to abiotic *** environmental factors,including heavy metal,cold,heat,ultraviolet(UV)light,drought,and salinity affect the plant physiological processes,resulting in massive losses of agriculture *** plants evolve from green algae to bryophytes,ferns,gymnosperms and angiosperms,phenylpropanoids are produced and accumulated in different tissues,giving the plant the capacity to counteract the harmful effects of the adverse *** have been performed on the metabolic evolution of rosmarinic acid,flavonoids and lignin,showing that the biosynthesis of phenylpropanoids begins in green algae until the emersion of genes found in angiosperms;however,the evolution of the CGA pathway has not yet been *** hypothesize that CGA could also be synthesized from algae to *** the present review,the evolutionary analysis of CGA pathway and the function of this compound in plant tolerance to abiotic stresses are *** analyzes were carried out on CGA-related genes across 37 plant species and revealed that the metabolic pathway starts in algae and gradually increases until it becomes complete in *** key genes exhibited different expression patterns in stress and plant ***,some genes accumulated rapidly during evolution and were more sensitive to environmental stresses,while others appeared only later in *** studies are needed to better understand the evolution of the CGA metabolic pathway in plants under environmentally stressed conditions.

关键词： Chlorogenic acid biosynthesis evolution plant abiotic stress

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Valence Band Splitting in Wurtzite InP Nanowires Observed by Photoluminescence and Photoluminescence Excitation Spectroscopy

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Nano Research 2011年第2期4卷 159-163页

作者： Gerben L. Tuin Magnus T. Borgstrom Johanna Tragardh Martin Ek L. reine Wallenberg Lars Samuelson Mats-Erik Pistol Solid State Physics/Nanometer Structure Consortium Box 118 Lund University S-221 00 Lund Sweden Polymer ＆ Materials Chemistry/nCHREM Lund University S-22100 Lurid Sweden

We have investigated individual bulk-like wires of wurtzite InP using photoluminescence, photoluminescence excitation spectroscopy and transmission electron microscopy. Using two different methods we find that the top of the valence band is split, as expected theoretically. This splitting of the valence band is peculiar to wurtzite InP and does not occur in zinc blende InP. We find the energy difference between the two bands to be 40 meV.

关键词： wurtzite InP photoluminescence excitation spectroscopy valence band structure

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Quality of life,depression and anxiety in potential living liver donors for pediatric recipients:A retrospective single center experience

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World Journal of Hepatology 2022年第10期14卷 1899-1906页

作者： Paula K reine Flavia Feier Eduardo Antunes da Fonseca Rosely G Hernandes Joao Seda-Neto Department of Psychology Hospital Sirio-LibanesSao Paulo 01308901Brazil Department ofLiver Transplantation Santa Casa de Porto AlegrePorto Alegre 90020090Brazil Department of Liver Transplantation Hospital Sirio-LibanesSao Paulo 01308901Brazil

BACKGROUND Living donor liver transplantation is a safe alternative for patients on a liver transplant *** evaluation goes beyond physical variables to include social,emotional,and ethical *** role of pre-donation sociopsychological evaluation of the donor candidate is as important to the success of the procedure as is the medical *** implies recovery from the operation and pro-mpt engagement in pre-transplant professional and social activities,without leading to psychological or physical *** profiling of potential living liver donors(PLLD)and evaluation of quality of life(QOL)can influence *** To evaluate the socio-demographics and psychological aspects(QOL,depression,and anxiety)of PLLD for pediatric liver transplantation in a cohort of 250 *** This was a retrospective cohort study of 250 PLLD who underwent psychological pre-donation evaluation between 2015 and *** the recipients were *** Beck anxiety inventory,Beck depression inventory,and 36-item short-form health survey(SF-36)scores were used to evaluate anxiety(Beck anxiety inventory),depression(Beck depression inventory),and QOL,*** A total of 250 PLLD were *** of them were women(54.4%),and the mean age was 29.2±7.2 years.A total of 120(48.8%)PLLD were employed at the time of evaluation for donation;however,most had low income(57%earned<2 times the minimum wage).A total of 110 patients(44%)did not finish the donation process,and 247 PLLD answered a questionnaire to evaluate depression,anxiety,and QOL(SF-36).Prevalence of depression was of 5.2%and anxiety 3.6%.Although most of the PLLD were optimistic regarding the donation process and never had doubts about becoming a donor,some traces of ambivalence were observed:46%of the respondents said they would feel relieved if a deceased donor became *** PLLD had a low prevalence of anxiety and *** foundation for effective and sa

关键词： Liver transplantation Children Outcomes Living donation

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Preliminary studies of acute and sub-chronic toxicity of the aqueous extract of Guibourtia tessmannii(Harms) *** stem barks (Caesalpiniaceae) in mice and rats

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Asian Pacific Journal of Tropical Biomedicine 2016年第6期6卷 506-510页

作者： Noreen Orianna Koumba Madingou Aristide Traore Alain Souza Marlaine Michelle Boukandou Mounanga Raissa reine Aworet Samseny Sylvin Ouedraogo Alfred Sababenedyo Traore Laboratory of Pharmacology and Toxicology Pharmacopoeia and Traditional Medicines Institute Research Center in Biological Food and Nutritional SciencesUniversity of Ouagadougou Department of Medicine and Traditional Pharmacopoeia/Pharmacy Health Science Research Institute Department of Biology Faculty of SciencesUniversity of Sciences and Technique of Masuku(USTM)

Objective: To investigate the toxicity of aqueous extract of Guibourtia tessmannii(Harms) J. Leonard(G. tessmannii) and evaluate its ***: NMRI mice were used to determine the acute toxicity of G. *** concentrations of the plant extracts were administered intraperitoneally or by force-feeding. General behavior and death were monitored and recorded daily for 7 *** order to determine the sub-acute toxicity of the extract, several doses were administered by oral gavage daily for 28 days in adult Wistar rats. Different parameters were assessed including body weight, food and water intake, biochemical parameters and several vital organ ***: LD50 of 328.78 mg/kg was obtained by i.p. route and more than 5 000 mg/kg was obtained in acute toxicity by oral route. In sub-acute toxicity, no significant alteration was observed in body weight or vital organs, food and water intake, and biochemical ***: The results showed that the aqueous extract of G. tessmannii has low toxicity intraperitoneally and no sub-acute toxicity via oral intake.

关键词： Guibourtia tessmannii Stem barks Plant extract Herbal medicine Toxicity

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California Bearing Ratio Test on the Bearing Capacity of a Foundation in Unsaturated Soil

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Journal of Geoscience and Environment Protection 2022年第6期10卷 12-25页

作者： reine Chancelvie Dimi Eboukou Durell Esperance Ndinga Manguet School of Geotechnical and Underground Engineering Hubei University of Technology Wuhan China School of Management and Economics Hubei University of Technology Wuhan China

The value of the California bearing ratio (CBR) test is an index making it possible to evaluate the load of the foundation soil and the resistance of the pavement materials. The California Bearing Ratio (CBR) of unsaturated soils is particularly related to their quality. The mechanism affecting the bearing capacity, in the case of California Bearing Ratio (CBR), has been studied as a transformation of red clay for the backfill. In this study, the effect of compaction energy on compaction characteristics and California Bearing Ratio (CBR) values was investigated. The relationship between the CBR value (California Ratio Ratio) and the degree of compaction is characterized by a gradual evolution of unsaturated soils with different water contents. The results show that the compaction degree and California Bearing Ratio (CBR) value of the soil in the cold region are insufficient, but the bearing capacity of the compacted soil after immersion under the maximum dry density can still meet the filling requirements. The red clays tested are considered useful as bedding in areas of unsaturated soils.

关键词： Compacted Soil CBR Testing Bearing Capacity Colonies

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《HSK标准教程1》在科特迪瓦的使用情况研究

《HSK标准教程1》在科特迪瓦的使用情况研究

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作者： KIPLE WAPEAGNON reine（女王）绍兴文理学院

学位级别：硕士

2008年5月,中国政府应科特迪瓦博瓦尼大学要求,派遣第一位汉语言教授在科特迪瓦开始教授汉语,自此,两国之间的语言教育联系维系至今。在科特迪瓦使用的汉语教材为《HSK标准教程》系列,本文以该系列教材的第1册为研究对象,通过对科特迪... 详细信息

2008年5月,中国政府应科特迪瓦博瓦尼大学要求,派遣第一位汉语言教授在科特迪瓦开始教授汉语,自此,两国之间的语言教育联系维系至今。在科特迪瓦使用的汉语教材为《HSK标准教程》系列,本文以该系列教材的第1册为研究对象,通过对科特迪瓦汉语教师和学生的调查与访谈,发现《HSK标准教程1》在科特迪瓦的接受度与使用情况非常好,但是,科特迪瓦师生也为以后科特迪瓦学者编写汉语教材提出了意见和建议。这些意见和建议主要涉及六个方面,即在教材中增加游戏与表演环节、将声调音乐化、反复重复新词以加强词汇输入效果、大量重复语法规则以加强汉语语法意识、在编写教材练习时增加实践性强的教学活动,最后,在教材课文内容的选择方面,笔者建议在教材内容中增加具有科特迪瓦色彩的语料和视频教学内容,让科特迪瓦汉语学习者能够运用汉语描述科特迪瓦生活。同时,通过访谈还发现,科特迪瓦师生认为新编科特迪瓦汉语教材应是中法双语版,而且汉语教师应该懂得汉语和法语两种语言,这样才能有效提高科特迪瓦学生学习汉语的效果。

关键词：《HSK标准教程1》科特迪瓦教材编写

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