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Journal of Electromagnetic Analysis and Applications 2012年第10期4卷 400-409页

作者： Denis pr.mel CEA LIST F-91191 Gif sur Yvette CEDEX France.

A great number of semi-analytical models, notably the repr.sentation of electromagnetic fields by integral equations are based on the second order vector potential (SOVP) formalism which introduces two scalar potentials in order to obtain analytical expr.ssions of the electromagnetic fields from the two potentials. However, the scalar decomposition is often known for canonical coordinate systems. This paper aims in introducing a specific SOVP formulation dedicated to arbitrary non-orthogonal curvilinear coordinates systems. The electromagnetic field repr.sentation which is derived in this paper constitutes the key stone for the development of semi-analytical models for solving some eddy currents moelling pr.blems and electromagnetic radiation pr.blems considering at least two homogeneous media separated by a rough interface. This SOVP formulation is derived from the tensor formalism and Maxwell’s equations written in a non-orthogonal coordinates system adapted to a surface characterized by a 2D arbitrary aperiodic pr.file.

关键词： Second Order Vector Potential (SOVP) Curvilinear Coordinate System Eddy Current Non-Destructive Testing (ECNDT)

Design of crashworthy attenuator structures as a part of vehicle safetyagainst impact:Application of waste aluminum can-based material

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Theoretical & Applied Mechanics Letters 2021年第2期11卷 85-93页

作者： Laksmana Widi pr.setya Aditya Rio pr.abowo Ubaidillah Ubaidillah Iwan Istanto Nur Azmah Binti Nordin Department of Mechanical Engineering Universitas Sebelas MaretSurakarta 57126Indonesia Agency for the Assessment and Application of Technology(BPPT) Jakarta 10340Indonesia Malaysia-Japan International Institute of Technology-Universiti Teknologi Malaysia Kuala Lumpur 54100Malaysia

The impact attenuator is an essential system in both race cars and urban *** structure of animpact attenuator serves as a safety barrier between the impacted surface and the driver in an *** materials tend to have a high pr.ce;thus,alternative materials were explored in the currentwork,i.e.,used cans from food and beverage *** study deployed a nonlinear finite elementalgorithm to calculate a series of impacts on the attenuator *** thickness of the cans andvelocity of the impact were considered as the main *** results concluded that the at-tenuator’s average energy was 16000 J for a can thickness of 1 *** value is more than two times the0.5 mm thick used *** attenuator’s new design was then matched with an attenuator regulation,and the results surpassed the standard value of 7350 J.

关键词： Attenuator structure Waste can Vehicle safety Crashworthiness analysis Impact phenomenon

Antagonizing amyloid-β/calcium-sensing receptor signaling in human astrocytes and neurons: a key to halt Alzheimer's disease pr.gression?

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Neural Regeneration Research 2015年第2期10卷 213-218页

作者： Ilaria Dal pr. Anna Chiarini Ubaldo Armato Histology & Embryology Section Department of Life & Reproduction Sciences University of Verona Medical School

Astrocytes＇ roles in late-onset Alzheimer＇s disease （LOAD） pr.motion are important, since they survive soluble or fibrillar amyloid-β peptides （Aβs） neurotoxic effects, undergo alterations of intracellular and intercellular Ca2＋ signaling and gliotransmitters release via the Aβ/a7-nAChR （αT-nicotinic acetylcholine receptor） signaling, and overpr.duce/oversecrete newly synthesized Aβ42 oligomers, NO, and VEGF-A via the Aβ/CaSR （calcium-sensing receptor） signaling. Recently, it was suggested that the NMDAR （N-methyl-D-aspartate receptor） inhibitor nitromemantine would block the synapse-destroying effects of Aβ/α7-nAChR signaling. Yet, this and the pr.gressive extracellular accrual and spr.ading of Aβ42 oligomers would be stopped well upstream by NPS 2143, an allosteric CaSR antagonist （calcilytic）.

关键词： Alzheimer's disease amyloid-β astrocytes Ca2+ calcilytic calcium-sensing receptor nitromemantine NPS 2143 aT-nicotinic acetylcholine receptor

Hybrid particle swarm optimization for solving resource-constrained FMS

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pr.gress in Natural Science:Materials International 2008年第9期18卷 1179-1183页

作者： Dongyun Wang , Liping Liu Department of Electronic Engineering, Zhongyuan University of Technology, Zhongyuan Road 41#, Zhengzhou 450007, pr.China Department of Electronic Engineering Zhongyuan University of Technology Zhongyuan Road 41# Zhengzhou 450007 PR China

In this paper, an appr.ach for resource-constrained fiexible manufacturing system (FMS) scheduling was pr.posed, which is based on the particle swarm optimization (PSO) algorithm and simulated annealing (SA) ***, the formulation for resource-con-strained FMS scheduling pr.blem was introduced and cost function for this pr.blem was ***, a hybrid algorithm of PSO and SA was employed to obtain optimal *** simulated results show that the appr.ach can dislodge a state from a local min-imum and guide it to the global minimum.

关键词： Particle swarm optimization Simulated annealing algorithm FMS Scheduling

Plant diversity and community structure of Brazilian Páramos

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Journal of Mountain Science 2018年第6期15卷 1186-1198页

作者： pr.mula Viana CAMPOS Pedro Manuel VILLA Jaquelina Alves NUNES Carlos E.G.R.SCHAEFER Stefan POREMBSKI Andreza Viana NERI Federal University of Vicosa Department of Plant Biology Laboratory of Ecology and Evolution of Plants Campus Universitdrio 36570-900 Vicosa Minas Gerais Brazil Foundation for the Conservation of Biodiversity 7101 Merida Venezuela Minas Gerais State University Rua dos estudantes 23 Santa Emilia 36800-000 Carangola Minas Gerais Brazil 4 Federal University of Vicosa Department of Soil Campus Universit（lrio 36570-900 Vicosa Minas Gerais Brazil 5 University of Rostock Institute of Bioseience Department of Botany Wismarsehe Str. 44/45 D-18051 Rostoek Germany

In Eastern South America, high altitude grasslands repr.sent a mountain system that has a high number of endemic species. However, studies on the ecology of plant communities in these environments remain scarce. We aimed to evaluate the patterns of biodiversity and structure of plant communities from rocky outcrops in high altitude grasslands of three areas at the Caparaó National Park, southeastern Brazil, by sampling 300 randomly distributed plots. Then, we compared the floristic composition, relative abundance, and biological and vegetation spectra among areas. We classified species as endemic and non-endemic and verified the occurrence of endangered species. Species richness was evaluated by rarefaction analysis on the sampling units. The importance value and species abundance distribution(SAD) models were assessed. We also performed an indicator species analysis. We sampled 58 species belonging to 49 genera and 32 families. The number of species decreased with increasing altitude, with significant differences being observed among areas regarding richness, abundance, and cover. Of the total number of species, 10 are endemic to the Caparaó National Park and 17 are listed on the Brazilian Red List of endangered species. The dominant families on all peaks were Asteraceae and Poaceae. The SAD models showed lognormal and geometric distributions, corroborating the fact that 10 species that were common to all three areas were also the most dominant ones in the communities and showed the highest importance values, which ranged between 35% and 60%. Indicator species analysis revealed that 28 species(48.27%) were indicators. Of these, 42.85% had maximum specificity, meaning that they occurred only in one area. Thus, the number of species per life form ratio was similar among areas, yet vegetation spectra differed, especially for hemicryptophytes. The altimetric difference among the areas showed to be a very important driver in the community assembly, influencing the evalu

关键词： Rock outcrops High altitude grasslands Species abundance distribution Species richness

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漆包线热处理系统的建模与控制

自动化学报 1993年第2期19卷 233-238页

作者：陈树中郑毓蕃 D.pr.tzel-Wolters 华东师范大学数学系上海200062 凯撒斯劳滕大学数学系

本文描述了漆包线热处理系统的结构和辨识,利用得到的数学模型,给出了几个不同控制器的仿真比较。

关键词：系统辨识控制漆包线热处理

Mesenchymal stromal cells-exosomes:a pr.mising cell-free therapeutic tool for wound healing and cutaneous regeneration

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Burns & Trauma 2019年第1期7卷 346-355页

作者： Peng Hu Qinxin Yang Qi Wang Chenshuo Shi Dali Wang Ubaldo Armato Ilaria Dal pr. Anna Chiarini Department of Burns&Plastic Surgery The Affiliated Hospital of ZunYi Medical UniversityDalian Road 149ZunYi City 563000Gui Zhou ProvinceChina Human Histology and Embryology Unit University of Verona Medical SchoolStrada Le Grazie 837134 VeronaItaly

Cutaneous regeneration at the wound site involves several intricate and dynamic pr.cesses which require a series of coordinated interactions implicating various cell types,growth factors,extracellular matrix(ECM),nerves,and blood *** stromal cells(MSCs)take part in all the skin wound healing stages playing active and beneficial roles in animal models and ***,which are among the key pr.ducts MSCs release,mimic the effects of parental *** can shuttle various effector pr.teins,messenger RNA(mRNA)and microRNAs(miRNAs)to modulate the activity of recipient cells,playing important roles in wound ***,using exosomes avoids many risks associated with cell ***,as a novel type of cell-free therapy,MSC-exosome-mediated administration may be safer and more efficient than whole *** this review,we pr.vide a compr.hensive understanding of the latest studies and observations on the role of MSC-exosome therapy in wound healing and cutaneous *** addition,we address the hypothesis of MSCs microenvironment extracellular vesicles(MSCs-MEVs)or MSCs microenvironment exosomes(MSCs-MExos)that need to take stock of and solved urgently in the related research about MSC-exosomes therapeutic *** review can inspire investigators to explore new research directions of MSC-exosome therapy in cutaneous repair and regeneration.

关键词： Cutaneous regeneration Mesenchymal stromal cell Exosomes Wound healing Microenvironment

Cooler Storage Ring in Lanzhou

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Cooler Storage Ring in Lanzhou

Impact of COVID-19 lockdown on the optical pr.perties and radiative effects of urban brown carbon aerosol

粒子加速器学会第七届全国会员代表大会暨学术报告会

作者： J.W. Xia, W.L. Zhan, B.W. Wei, CSR group Institute of Modem Physics (IMP), Chinese Academy of Sciences P.O. Box 31, Lanzhou, 730000, pr. China

＜正＞1. Introduction From May of 1993 to November of 1996, a new plan was pr.posed [ 1,2] to upgrade the HIRFL [3] with a multi-functional Cooling Storage Ring （CSR） forming a HIRFL-CSR accelerator system shown in Fig. 1. This will greatly enhance the performances of HIRFL for those researches by using Radioactive Ion Beams （RIB） and high-Z heavy ion beams in the fields of nuclear physics and atomic physics. In July of 1998, the Chinese center government appr.ved this plan, and on December 10 of 1999 the CSR pr.ject was started. The

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Geoscience Frontiers 2022年第6期13卷 291-301页

作者： Yong Zhang Qiyuan Wang Jie Tian Yu Li Huikun Liu Weikang Ran Yongming Han AndréS.H.pr.vot Junji Cao State Key Laboratory of Loess and Quaternary Geology Institute of Earth EnvironmentChinese Academy of SciencesXi’an 710061China CAS Center for Excellence in Quaternary Science and Global Change Xi’an 710061China Guanzhong Plain Ecological Environment Change and Compr.hensive Treatment National Observation and Research Station Xi’an 710061China Xi’an Institute for Innovative Earth Environment Research Xi’an 710061China University of Chinese Academy of Sciences Beijing 100049China Laboratory of Atmospheric Chemistry Paul Scherrer Institute(PSI)Villigen 5232Switzerland

Intensive measurements were conducted in Xi’an,China before and during a COVID-19 lockdown period to investigate how changes in anthropogenic emissions affected the optical pr.perties and radiative effects of brown carbon(BrC)*** contribution of BrC to total aerosol light absorption during the lockdown(13%-49%)was higher compared with the normal period(4%-29%).Mass absorption cross-sections(MACs)of specific organic aerosol(OA)factors were calculated from a ridge regression *** the pr.mary OA(POA),coal combustion OA(CCOA)had the largest MACs at all tested wave-lengths during both periods due to high molecular-weight BrC chromophores;that was followed by biomass burning OA(BBOA)and hydrocarbon-like OA(HOA).For secondary OA(SOA),the MACs of the lessoxidized oxygenated OA(OOA)species(LO-OOA)atλ=370-590 nm were higher than those of more-oxidized OOA(MO-OOA)during both periods,pr.sumably due to chromophore *** largest contributor to BrC absorption at the short wavelengths was CCOA during both periods,but BrC absorption by LO-OOA and MO-OOA became dominant at longer wavelengths during the *** estimated radiation forcing efficiency of BrC over 370-600 nm increased from 37.5 W·gduring the normal period to 50.2 W·gduring the lockdown,and that enhancement was mainly caused by higher MACs for both LO-OOA and *** study pr.vides insights into the optical pr.perties and radiative effects of source-specific BrC aerosol when pollution emissions are reduced.

关键词： COVID-19 Brown carbon Mass absorption cross-section Radiative effects

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回归基础研究:霉菌毒素简介

国外畜牧学（猪与禽） 2024年第4期44卷 19-21页

作者：唐芬兰(译) 范美红(校) 李红(审) 孟祥光(制图) Damien pr.véraud 不详

霉菌毒素是影响猪、家禽和奶牛健康的重要因素。近年来,有关霉菌毒素的信息量呈指数级增长,导致相关的技术论文发表也很多。2023年年中,一本全面介绍霉菌毒素的著作——《霉菌百科全书》问世。这本巨著包含了关于霉菌毒素的所有知识。... 详细信息

霉菌毒素是影响猪、家禽和奶牛健康的重要因素。近年来,有关霉菌毒素的信息量呈指数级增长,导致相关的技术论文发表也很多。2023年年中,一本全面介绍霉菌毒素的著作——《霉菌百科全书》问世。这本巨著包含了关于霉菌毒素的所有知识。书中第一章讨论了霉菌毒素的基本知识,本文对该巨著第一章进行了简要总结。

关键词：霉菌毒素动物饲料次生代谢产物隐蔽型霉菌毒素

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