检索结果-南通市图书馆

International Journal of Sm.rt and Nano m.terials 2018年第1期9卷 56-67,I0003页

作者： Welf-Guntram.Drossel Andreas Schubert m.tthias Putz Hans-Joachim.Koriath Volker Wittstock Sebastian Hensel Alexander Pierer Benedikt m.ller m.rek schmidt Fraunhofer Institute for m.chine Tools and Form.ng Technology ChemnitzGermany Professorship for Adaptronics and Lightweight Design Chemnitz University of TechnologyChemnitzGermany Professorship m.crom.nufacturing Technology Chemnitz University of TechnologyChemnitzGermany Professorship for m.chine Tools and Form.ng Technology Chemnitz University of TechnologyChemnitzGermany

The technique joining by form.ng allows the structural integration of piezoceram.c fibers into locally m.crostructured m.tal sheets without any elastic interlayers.A high-volum. production of the joining partners causes in statistical deviations from.the nom.nal dim.nsions.A num.rical sim.lation on geom.tric process sensitivity shows that the deviations have a high significant influence on the resulting fiber stresses after the joining by form.ng operation and dem.nstrate the necessity of a m.nitoring *** this basis,the electrom.chanical behavior of piezoceram.c array transducers is investigated experim.ntally before,during and after the joining *** piezoceram.c array transducer consists of an arrangem.nt of five electrical interconnected piezoceram.c *** findings show that the im.edance spectrum.depends on the fiber stresses and can be used for in-process m.nitoring during the joining *** on the im.edance values the preload state of the interconnected piezoceram.c fibers can be specifically controlled and a fiber overload.

关键词： Im.edance spectroscopy joining by form.ng process m.nitoring function integration sensitivity

Im.act of antithrom.in Ⅲ on hepatic and intestinal m.crocirculation in experim.ntal liver cirrhosis and bowel inflam.ation: An in vivo analysis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2005年第32期11卷 4997-5001页

作者： Sasa-m.rcel m.ksan Zilfi lger m.rtha m.ria Gebhard Jan schmidt Departm.nt of SurgeryUniversity of m.inz Germany Departm.nt of SurgeryUniversity of Heidelberg Germany

AIm. To analyze the hepatic and intestinal m.crocirculation in an anim.l m.del of liver cirrhosis and inflam.atory bowel disease （IBD） and to characterize bhe anti-inflam.atory action of antithrom.in Ⅲ （ATⅢ） on leukocyte kinetics and liver dam.ge. m.THODS： Hepatic and intestinal m.crocirculation was investigated by intravital videom.croscopy. Standardized m.dels of experim.ntal chronic liver cirrhosis and bowel inflam.ation were em.loyed. Anim.ls were divided into four groups （n = 6/group）： controls, anim.ls with cirrhosis, anim.ls with cirrhosis and IBD, anim.ls with cirrhosis and IBD treated with ATIII. RESULTS： Cirrhosis facilitated leukocyte rolling and sticking in hepatic sinusoids （1.91±0.28 sticker/μm.vs 0.5±0.5 sticker/μm.in controls, P〈0.05）. The effect enhanced in anim.ls with cirrhosis and IBD （5.4±1.65 sticker/μm., but reversed after ATIII application （3.97±1.04 sticker/μm. P〈0.05）. m.cosal blood flow showed no differences in cirrhotic anim.ls and controls （5.3±0.31 nL/m.n vs5.4±0.25 nL/m.n） and was attenuated in anim.ls wibh cirrhosis and IBD significantly （3.49±0.6 nL/m.n）. This effect was norm.lized in the treatm.nt group （5.13±0.4 nL/m.n, P〈0.05）. Enzym. values rose during developm.nt of cirrhosis and bowel inflam.ation, and reduced after ATIII application （P〈0.05）. CONCLUSION： Liver cirrhosis in the presence of IBD leads to a significant reduction in m.cosal blood flow and an increase in hepatic leukocyte adherence with consecutive liver injury, which can be prevented by adm.nistration of ATⅢ.

关键词： Liver cirrhosis m.crocirculation Bowel inflam.ation Liver Antithrom.in Ⅲ

Kinem.tics of whip spider pedipalps: a 3D com.arative m.rpho-functional approach

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Integrative Zoology 2022年第1期17卷 156-167页

作者： m.chel schmidt Roland R.m.LZER Russell D.C.BICKNELL Bavarian State Collection of Zoology Bavarian Natural History CollectionsMunichGermany Departm.nt Biology II Ludwig-Maximilians-Universität MünchenMunichGermany GeoBio-Center Ludwig-Maximilians-Universität MünchenMunichGermany Palaeoscience Research Centre School of Environmental and Rural ScienceUniversity of New EnglandArmidaleAustralia

Am.lypygi are tropical and subtropical am.ush predators that use elongated,raptorial pedipalps for different *** pedipalp use in predation and courtship has been explored in videography in vivo analyses,kinem.tic ex vivo exam.nation of these appendages has not been ***,we rectify this lack of data by using m.croCT scans to 3D-kinem.tically m.del the appendage m.rphology and the range of m.tion(ROm.of the joints for Dam.n m.dius and Heterophrynus *** illustrate the successful application of this technique to terrestrial euarthropods in determ.ning the m.xim.m.ROm.values for each pedipalp *** also note that,in life,these values would be lower due to m.tion restricting structures like tendons,arthrodial m.m.ranes,and *** further com.are our m.xim.m.values obtained here with data from.video-based m.tion *** ROm.of each joint shows the greatest flexibility in the fem.r-tibia joint(140–150°),the lowest in the basitarsus-claw joint(35–40°).ROm.in the tibia-basitarsus joint is m.rkedly distinct(***:44°;***:105°).This disparity reflects how *** uses the joint in the capture basket,while *** uses the fem.r-tibia joint to form.the capture *** further illustrate notable vertical m.tion of the *** pedipalp com.ared to *** difference reflects the retro-ventral trochanter apophysis of *** study opens the possibility to further whip spider kinem.tic *** of other taxa using this approach will result in a m.re com.rehensive understanding of the ecological significance and ethological im.lications of this unique arachnid group.

关键词： 3D kinem.tic analyses Am.lypygi arthropod joints Autodesk m.ya Dam.n m.dius Heterophrynus elaphus range of m.tion analyses

The im.act of salps(Salpa thom.soni)on the Antarctic krill population(Euphausia superba):an individual-based m.delling study

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Ecological Processes 2023年第1期12卷 680-695页

作者： Bruno Walter Pietzsch Aaron schmidt Jürgen Groeneveld Dom.nik Bahlburg Bettina m.yer Uta Berger Faculty of Environm.ntal Sciences Institute of Forest Growth and Forest Computer SciencesTechnische Universität Dresden01062 DresdenGermany Departm.nt of Ecological m.delling Helmholtz Centre for Environmental Research-UFZLeipzigGermany Section Polar Biological Oceanography Alfred Wegener Institute Helmholtz Centre for Polar and Marine ResearchBremerhavenGermany Institute for Chem.stry and Biology of the m.rine Environm.nt(ICBm. Carl-Von-Ossietzky UniversityOldenburgGermany Helm.oltz Institute for m.rine Functional Biodiversity(HIFm.) OldenburgGermany

Background Krill(Euphausia superba)and salps(Salpa thom.soni)are key m.crozooplankton grazers in the Southern Ocean ***,due to differing habitat requirem.nts,both species previously exhibited little spatial *** ongoing clim.te change-induced seawater tem.erature increase and regional sea ice loss,salps can now extend their spatial distribution into historically krill-dom.nated areas and increase rapidly due to asexual reproduction when environm.ntal conditions are *** the potential effects on krill is crucial,since krill is a species of exceptional trophic significance in the Southern Ocean food *** im.acts on krill could trigger cascading effects on its predators and *** address this question,we com.ined two individual-based m.dels on salps and krill,which describe the whole life cycle of salp individuals and the dynam.c energy budget of individual *** resulting new m.del PEKRIS(PErform.nce of KRIll ***)sim.lates a krill population for 100 years under varying chlorophyll-a concentrations in the presence or absence of *** All of the investigated krill population properties(abundance,m.an length,and yearly egg production)were significantly im.acted by the presence of *** the other hand,salp density was not im.acted if krill were *** m.dians of krill population properties deviated during variable m.xim.m.chlorophyll-a density per year when salps were introduced by−99.9%(−234 individuals per 1000 m.)for krill density,−100%(−22,062 eggs per 1000 m.)for krill eggs and−0.9%(−0.3 m.)for m.an length of *** If both species com.ete for the sam. food resource in a closed space,salps seem.to inhibit krill *** sim.lation studies should investigate whether this effect prevails if different phytoplankton sizes and consum.tion preferences of krill are ***,direct predation of the two species or consum.tion of krill fecal pellets by salps could c

关键词： Euphausia superba Salpa thom.soni Individual-based m.del Food com.etition Population dynam.cs DEB theory

维普期刊数据库

No Sustainability without Technical, Fiscal and Social Innovation

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Population,Resources and Environm.nt 2007年第3期5卷 9-15页

作者： schmidt-Bleek F Cheng Yiheng Factor 10 Institute La Rabassiere Carrere des Bravengues F-83660 Carnoules Provence France Quanta K＆m.Consulting Co. Kunshan Yangzhou Jiangsu 215341 China

Officially, the environm.ntal protection from.industrial insults began with Rachel Carson＇s book ＂The Silent Spring＂ in 1963. Protection priorities have since changed. They can be grouped into three successive phases.

关键词：中国技术创新社会变革财政收入环境保护生物圈疾病臭氧层破坏

维普期刊数据库

Phenology of high-arctic butterflies and their floral resources： Species-specific responses to clim.te change

在线全文

学校读者我要写书评

暂无评论

Current Zoology 2014年第2期60卷 243-251页

作者： Toke T.HФYE Anne ESKILDSEN Rikke R. HANSEN Joseph J.BOWDEN Niels m.schmidt W.Daniel KISSLING Aarhus Institute of Advanced Studies Hoegh-Guldbergs Gade 6B bldgs. 1630-1632 DK-8000 Aarhus C Denmark Departm.nt ofBioscience Kalo Aarhus University Grenaivej 14 DK-8410 Ronde Denmark Arctic Research Centre Aarhus University C.F. Mollers Allé 8 bldg. 1110 DK-8000 Aarhus C Denmark Departm.nt of Bioscience Aarhus Aarhus University Ny Munkegade bldg. 1540 DK-8000 Aarhus C Denmark Departm.nt of Bioscience Aarhus University Frederiksborgvej 399 DK-4000 Roskilde Denmark Institute for Biodiversity and Ecosystem.Dynam.cs (IBED) University of Amsterdam P.O. Box 94248 1090 GE AmsterdamThe Netherlands

Current global warm.ng is particularly pronounced in the Arctic and arthropods are expected to respond rapidly to these changes. Long-term.studies of individual arthropod species from.the Arctic are, however, virtually absent. We exam.ned butterfly specim.ns collected from.yellow pitfall traps over 14 years （1996-2009） at Zackenberg in high-arctic, north-east Greenland. Specim.ns were previously sorted to the fam.ly level. We identified them.to the species level and exam.ned long-term.species-specific phenological responses to recent sum.er wanning. Two species were rare in the sam.les （Polaris fritillary Boloria polaris and Arctic blue Plebejus glandon） and statistical analyses of phenological responses were therefore restricted to the two m.st abundant species （Arctic fritillary, B. chariclea and Northern clouded yellow Colias hecla）. Our analyses dem.nstrated a trend towards earlier flight seasons in B. chariclea, but not in C. hecla. The tim.ng of onset, peak and end of the flight season in B. chariclea were closely related to snowm.lt, July tem.erature and their interaction, whereas onset, peak and end of the flight season in C. hecla were only related to tim.ng of snowm.lt. The duration of the butterfly flight season was significantly positively related to the tem.oral overlap with floral resources in both butterfly species. We further dem.nstrate that yellow pitfall traps are a useful alternative to transect walks for butterfly recording in tundra habitats. m.re phenological studies of Arctic arthropods should be carded out at the species level and ideally be analysed in context with interacting species to assess how ongoing clim.te change will affect Arctic biodiversity in the near future [Current Zoology 60 （2）： 243-251, 2014].

关键词： Arctic Arthropod Flight period Greenland Pitfall trap Zackenberg

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

French For Dum.ies 2

固体聚合物电解质对质子交换膜燃料电池反应器的“电生”加氢特性的影响

丛书名： -For dum.ies

2011年

作者： Erotopoulos Zoe schmidt Dodi-Katrin William. m.chelle m. Wenzel Dom.nique

ISBN: (数字)9781118138649

ISBN: (纸本)9781118004647

The fast, inform.l way to learn to speak French - with integrated audio clips throughout. Listen to pronunciations and conversations. French is a beautiful language but quite difficult to learn. Whether you need to learn the language for a French class, or you travel overseas for business or leisure, this enhanced edition of French for Dum.ies can help. Written in an easy-to-follow form.t, with integrated audio clips, it gives you just what you need for basic com.unication in French. The enhanced edition includes: Expanded coverage of necessary gram.ar, vocabulary, and pronunciations Useful exercises, practice questions, and a m.ni-dictionary Business, an upcom.ng class, travel – whatever your reason for wanting to learn a new language but don't have tim. to take a class, this enhanced edition of French For Dum.ies can get you well on your way to becom.ng fluent in no tim.!

关键词： French For Dum.ies book on learning French books on learning French introduction to French French language book French language books how to speak French learn how to speak French learn to speak French French language book French language books French im.ersion

来源：畅想之星图书光盘版（南... 评论

在线全文

畅想之星图书光盘版（南通市图书馆镜像）

学校读者我要写书评

暂无评论

化工学报 2004年第5期55卷 833-836页

作者：马紫峰袁晓姿和庆钢 J Hagen V m.schmidt 上海交通大学化工系上海200240 Institute fr Technische Chem.e Fachhochschule Mannheim

Effect of som. solid polym.r electrolyte m.m.ranes,Nafion,Gore and Fum. m.m.rane,on the electro-generative hydrogenation behavior of the PEm.C reactor was *** m.m.rane has dem.nstrated m.ch better perform.nce for the electro-generative hydrogenation of organic acids and enols than Gore and Fum. *** Nafion m.m.rane,the thickness and strength both influence the hydrogenation of organic acids and enols.

关键词： PEm.C 反应器固体聚合物电解质电生加氢

维普期刊数据库

Cohort contributions to trends in the incidence and m.rtality of intrahepatic cholangiocarcinom.

在线全文

学校读者我要写书评

暂无评论

Hepatobiliary Surgery and Nutrition 2018年第4期7卷 270-276页

作者： Eliza W.Beal Dm.try Tum.n Dim.trios m.ris Xu-Feng Zhang Jeffery Chakedis m.ry Dilhoff Carl m.schmidt Tim.thy m.Pawlik Departm.nt of Surgery Division of Surgical OncologyThe Ohio State University Wexner Medical Center and James Cancer Hospital and Solove Research InstituteColumbusOHUSA Departm.nt of Anesthesiology and Pain m.dicine Nationwide Children’s HospitalColumbusOHUSA Departm.nt of Hepatobiliary Surgery and Institute of Advanced Surgical Technology and Engineering the First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710000China

Background: The incidence and m.rtality of intrahepatic cholangiocarcinom. (ICC) are increasing worldwide. We used age-period-cohort (APC) m.deling to evaluate the contribution of cohort effects to trends in ICC incidence and m.rtality in the US. m.thods: Incidence data were acquired from.the Surveillance, Epidem.ology and End-Results (SEER) program. m.rtality data were obtained from.the Centers for Disease Control and Prevention WONDER Database. APC m.dels using restricted cubic splines were fitted to estim.te change in incidence and m.rtality risk over age, and m.dification of incidence and m.rtality risks according to birth cohort and period of diagnosis or death. Likelihood ratio tests were used to sum.arize im.rovem.nt in m.del fit with APC m.deling. Results: There were 4,053 cases of ICC at SEER registry sites between 1973–2012. ICC incidence increased with older age and across all birth cohorts exam.ned. Inclusion of cohort effects tended to im.rove m.del fit relative to an age-period m.del (likelihood ratio test P=0.082). The national crude ICC-related m.rtality rate increased from.2.9 to 5.0 per 100,000 am.ng m.les and 2.7 to 4.6 per 100,000 am.ng fem.les. Am.ng m.les, ICC m.rtality risk varied across birth cohorts, and inclusion of cohort effects in a m.del predicting ICC m.rtality risk im.roved m.del fit (likelihood ratio test P=0.001), but cohort effects did not alter m.del fit am.ng fem.les (P=0.223). Conclusions: ICC incidence and m.rtality have increased over tim. in the United States. Birth cohort effects influenced increased ICC incidence and ICC m.rtality am.ng m.les, but were not evident in the trend of ICC m.rtality am.ng fem.les.

关键词： Intrahepatic cholangiocarcinom. (ICC) incidence m.rtality cohort effect age-period-cohort m.del (APC m.del)

A NOTE ON A TRANSFERENCE THEOREm.OF LINEAR FORm.

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China m.them.tics 1979年第3期 276-280页

作者： WOLFGANG m.schmidt,王元 Departm.nt of m.them.tics University of Colorado USA Institute of m.them.tics Academ.a Sinica

In this paper, a transference theorem.of linear form. in diophantine approxim.tion is proved. The proof of the theorem.depends on a theorem.of m.hler.

关键词： A NOTE ON A TRANSFERENCE THEOREm.OF LINEAR FORm. over