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Finite Volume Evolution Galerkin Methods for the Shallow Water Equations with Dry Beds

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Communications in Computational Physics 2011年第7期10卷 371-404页

作者： Andreas Bollermann Sebastian Noelle Maria Lukacova-Medvid’ova IGPM RWTH AachenTemplergraben 5552062 AachenGermany Institut fur Mathematik Universitat MainzStaudingerweg 955099 MainzGermany.

We present a new Finite Volume Evolution Galerkin(FVEG)scheme for the solution of the shallow water equations(SWE)with the bottom topography as a source *** new scheme will be based on the FVEG methods presented in(Noelle and Kraft,***.,221(2007)),but adds the possibility to handle dry *** most important aspect is to preserve the positivity of the water *** present a general approach to ensure this for arbitrary finite volume *** main idea is to limit the outgoing fluxes of a cell whenever they would create negative water ***,this corresponds to the absence of fluxes in the presence of *** is then re-established by splitting gravitational and gravity driven parts of the ***,a new entropy fix is introduced that improves the reproduction of sonic rarefaction waves.

关键词： Well-balanced schemes dry boundaries shallow water equations evolution Galerkin schemes source terms

Comparison of wormlion behavior under man-made and natural shelters:urban wormlions more strongly prefer shaded,fine-sand microhabitats,construct larger pits and respond faster to prey

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Current Zoology 2020年第1期66卷 91-98页

作者： Yehonatan SAMOCHA Inon SCHARF School of Zoology Faculty of Life SciencesTel Aviv UniversityTel AvivIsrael Institute of Organismic and Molecular Evolution Johannes Gutenberg University MainzMainzGermany

Urban habitats differ from their natural surroundings in various aspects,such as a higher temperature and a distinct species *** is therefore not surprising that animal behavior too differs between these habitat *** studied the foraging and habitat selection behavior of a pit-building predator,a wormlion,originating from either an urban or a more natural *** occur in nature under structures that provide shelter from sunlight and rain,such as caves,and are also common in cities,occurring under artificial *** construct pittraps to hunt arthropods,and the pits constructed by urban wormlions were larger than those constructed by wormlions from *** wormlions responded faster to prey falling into their pit,probably leading to a higher capture *** suggest that these 2 findings indicate the higher investment of urban wormlions in foraging,resulting from the higher abundance of potential prey in the *** wormlions were choosier regarding their preferred *** both fine sand and shaded microhabitats were preferred by wormlions,urban wormlions demonstrated a greater preference for such *** suggest that relocation is more likely to lead wormlions in cities to find microhabitats of a higher quality compared with wormlions inhabiting *** is probably due to the larger areas in the city available for *** from the caves possessed more lipids,suggesting that they employ a conservative growth strategy,intended to contend with the uncertainty of prey arrival,in contrast to the city,where potential prey are more abundant.

关键词： antiions habitat selection habitat structure optimal foraging trap-building predators

Mixers with Microstructured Foils for Chemical Production Purposes

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化工进展 2005年第5期24卷 570-576页

作者： Bernd Werner Volker Hessel Patrick Lb Institut für Mikrotechnik mainz GmbH Carl-Zeiss-Straβe 18-20D-55129 Institut für Mikrotechnik Mainz GmbHCarl-Zeiss-Straβe 18-20D-55129 MainzGermanyInstitut für Mikrotechnik Mainz GmbHCarl-Zeiss-Straβe 18-20D-55129 MainzGermany

约翰威立出版公司是世界知名的出版集团,出版、发行许多著名学术、技术期刊和书籍。《化工进展》编辑部从2005年第5期起,与新加坡约翰威立股份有限公司合作,不定期刊登其出版、发行的知名化工期刊的原版文章。欢迎读者提出宝贵意见。

关键词：化工行业 IMM 科研实力微观结构混频器

Chemokine receptor CXCR4-prognostic factor for gastrointestinal tumors

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World Journal of Gastroenterology 2008年第30期14卷 4721-4724页

作者： Carl C Schimanski Peter R Galle Markus Moehler First Department of Internal Medicine of Johannes Gutenberg University of mainz

To review the implication of CXCR4 for gastrointestinal cancer, a ＂Pubmed＂ analysis was performed in order to evaluate the relevance of CXCR4 and its ligands for gastrointestinal cancers. Search terms applied were ＂cancer, malignoma, esophageal, gastric, colon, colorectal, hepatic, pancreatic, CXCR4, SDF- 1α, and SDF-1β＂. CXCR4 expression correlated with dissemination of diverse gastrointestinal malignomas. The CXCR4 ligand SDF-1α might act as ＂chemorepellent＂ while SDF-1β might act as ＂chemorepellent＂ for CTLs, inducing tumor rejection. The paracrine expression of SDF-1α was furthermore closely associated with neoangiogenesis. CXCR4 and its ligands influence the dissemination, immune rejection, and neoangiogenesis of human gastrointestinal cancers. Inhibition of CXCR4 might be an interesting therapeutic option.

关键词： CXC chemokine receptor-4 CXCL12,Stromal-derived-factor-1 Cancer Malignoma

Carboniferous Alaskan-type complex along the Sino–Mongolian boundary,southern margin of the Central Asian Orogenic Belt

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Acta Geochimica 2017年第2期36卷 276-290页

作者： Yuruo Shi Linlin Li Alfred Kroner Jing Ding Wei Zhang Zengbao Huang Ping Jian Beijing SHRIMP Center Institute of Geology Chinese Academy of Geological Sciences Beijing 100037 China Institut für Geowissenschaften Universitat Mainz 55099 Mainz Germany Geological Survey of Gansu Province Lanzhou 735000 China

We present zircon ages and geochemical data for the Hongshishan Carboniferous Alaskan-type mafic–ultramafic complex exposed in the Beishan area along the Sino–Mongolian boundary, southern margin of the Central Asian Orogenic Belt. This complex mainly consists of dunite,harzburgite, lherzolite, wehrlite, and gabbro, which intrudes Early Carboniferous volcanic rocks and reveals a zoned structure. Zircons of a gabbro sample yielded a 206Pb/238 U age of 357 ± 4 Ma, reflecting the time of Early Carboniferous magmatism. Zircon ages were also obtained for an andesite(322 ± 3 Ma) and a basaltic andesite(304 ± 2 Ma).High initial Nd isotope whole-rock values suggest that the Hongshishan gabbro [e_(Nd(t))= +9.6-+10.2] and basalt[eNd(t)= +10.0-+10.8] were derived from a depleted mantle source. Slightly lower eNd(t)values for the ultramafic rocks [eNd(t)= +8.5-+8.7] suggest some interaction of the parental magma with the continental crust. In contrast, the Late Carboniferous Quershan samples in this area represent subduction-related arc volcanic rocks with Adakite-like compositions. The early Carboniferous Hongshishan Alaskan-type complex was interpreted to represent the remnants of a magma chamber that crystallized at the base of a mature island arc, whereas the Quershan island arc volcanic rockssuggest the resurrection of the subduction process after arccontinent collision and uplift of the roots of the arc.

关键词： Alaskan-type complex Carboniferous Zircon age Sino-Mongolian boundary CAOB

Factorizations of groups and related topics

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Science China Mathematics 2009年第2期52卷 217-230页

作者： AMBERG Bernhard KAZARIN Lev Fachbereich 08 Universitaet MainzGermany Department of Mathematics Yaroslavl State University

This is a survey of some recent progress in the theory of groups with factorizations. Some of the methods can be used to obtain information about finite groups in general, nilpotent algebras and nearrings.

关键词： products of groups factorizations 20D40

Perspectives for Globalized Natural Medicines

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中国天然药物 2011年第1期9卷 1-6页

作者： Thomas EFFERTH Department of Pharmaceutical Biology Institute of Pharmacy and BiochemistryUniversity of Mainz

Natural medicines provide valuable resources to meet the requirements for global health care at affordable ***,safety and efficacy need to be proven in a comparable manner to conventional ***-based natural and western medicine may merge to a "one-world medicine" for the sake of all patients in industrialized and developing *** the present review,we discuss strategies for (1) preservation of traditional knowledge on natural medicines,(2) sustainability of medicinal herbs and natural products,and (3) standardization and quality *** technologies will impact research on natural medicines in the years to come,*** sensing to map medicinal plant locations,DNA barcoding for plant authentication,hollow fiber extraction,high-end techniques for chemo-profiling of plant constituents in medicinal products and blood serum of patients as well as systems biological approaches.

关键词：生物多样性草药的治疗生药学 Phytomedicine 植物治疗法质量控制可持续性

HEAVY-QUARK AND SOFT-COLLINEAR EFFECTIVE THEORY

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Chinese Physics C 2016年第10期40卷 303-309页

作者： C.W. Bauer M. Neubert LBNL U. mainz

17.1. Effective Field Theories Quantum field theories provide the most precise computational tools for describing physics at the highest energies. One of their characteristic features is that they almost inevitably involve multiple length scales. When trying to determine the value of an observable, quantum field theory demands that all possible virtual states and hence all particles be included in the calculation. Since these particles have widely different masses, the final prediction is sensitive to many scales. This fact represents a formidable challenge from a practical point of view. No realistic quantum field theories can be solved exactly, so that one needs to resort to approximation schemes; these, however, are typically most straightforward when only a single scale is involved at a time.

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Brain network correlates of epilepsy occurrence in multiple sclerosis and neuroinflammation

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Neural Regeneration Research 2023年第8期18卷 1717-1718页

作者： Dumitru Ciolac Gabriel Gonzalez-Escamilla Yaroslav Winter Vinzenz Fleischer Matthias Grothe Sergiu Groppa Department of Neurology Focus Program Translational NeuroscienceRhine Main Neuroscience Network(rmn2)University Medical Center of the Johannes Gutenberg University MainzMainzGermany State University of Medicine and Pharmacy“Nicolae Testemitanu” ChisinauRepublic of Moldova Department of Neurology Institute of Emergency MedicineChisinauRepublic of Moldova mainz Comprehensive Epilepsy and Sleep Medicine Center Department of NeurologyJohannes Gutenberg University MainzMainzGermany Department of Neurology Philipps-UniversityMarburgGermany Department of Neurology Heinrich Heine UniversityDüsseldorfGermany

Multiple sclerosis(MS),the most common inflammatory condition of the central nervous system in young adults,is characterized by immunemediated demyelination and neurodegeneration that translate into heterogeneous clin... 详细信息

关键词： epilepsy inflammation sclerosis