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GEANt. simulat.on of gamma ray in a double-gap resist.ve plat. chamber

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Chinese Physics B 2006年第1期15卷 108-115页

作者： j. t. rhee M. j.mil St.ve Hall Y. j. j.on Inst.t.t. for Advanced Physics Physics Department Konkuk University Seoul 143-701 Korea School of Science and Engineering Ballarat University Ballarat Victoria 3353 Australia Depart.ent.of Chemist.y Konkuk University Seoul 143-701 Korea

For more t.an 20 years nuclear physicist. have used t.e GEANt.code t. simulat. part.cle-mat.er int.ract.on. In most.recent.version, GEANt. is a t.olkit.for simulat.ng t.e passage of part.cles t.ough mat.er, which cont.ins a complet. range of funct.onalit. including t.acking, geomet.y, physics models, and hit.. In t.is art.cle, an at.empt.t. use GEANt. t. model a double-gap resist.ve plat. chamber （RPC） wit. it. improved efficiency is present.d. t.e efficiencies of t.e double-gap RPC have been evaluat.d as a funct.on of gamma energy range 0.005-1000MeV. A comparison t. available previous simulat.on package GEANt. dat. is also performed.

关键词： GEANt. Mont. Carlo simulat.on efficiency resist.ve plat. chamber

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旧金山市结核病流行病学中的性别差异

国际结核病与肺部疾病杂志 2000年第Z1期 55-59页

作者： A. N. Mart.nez j. t. rhee P. M. Small M. A. Behr 王延莉 Division of Pulmonary and Crit.cal Care Medicine University of CaliforniaSan Francisco Divisions Division of Pulmonary and Crit.cal Care Medicine University of CaliforniaSan Francisco Divisions Epidemiology Infect.ous Diseases and Geographic Medicine Stanford University Stanford California USA Division of Infect.ous Diseases McGill University Health Centre Montreal Quebec Canada

背景:在全球范围内,结核病性别发病率的差异仍无根本性的解释。目的:探究旧金山市1991～1996年有可能解释结核病发病率性别差异的各种因素。设计:对旧金山市1991～1996年结核病特定性别发病率进行回顾性流行病学分析。按诊断时年龄、种... 详细信息

背景:在全球范围内,结核病性别发病率的差异仍无根本性的解释。目的:探究旧金山市1991～1996年有可能解释结核病发病率性别差异的各种因素。设计:对旧金山市1991～1996年结核病特定性别发病率进行回顾性流行病学分析。按诊断时年龄、种族群、人类免疫缺陷病毒(HIV)感染情况以及出生地等进行分层分析。使用带有IS6110数据的分子指纹研究新感染和复燃结核病例发病率的性别差异。结果:研究期内,男性与女性发病率之比为2.1(95%CI 1.9～2.3)。分层分析显示年龄超过14岁可见性别发病率差异,美国出生人群、白种人和黑种人其男性:女性发病率之比最高。具有成簇指纹的病例比值也较高,这与美国出生人群近似。在以结核病复燃病例为主的人群,比值在青春期后高于一般情况,但这种影响报告的较少。结论:结核病在美国出生人口中不断的感染是可解释旧金山市性别发病率不同的原因之一。观察到的两性结核病发病率的差异,可能是由于传播动力学的不同,而不是来自诊断和报告的偏倚。

关键词：结核病性别性流行病学

Aut.desk invent.r 11 essent.als plus Daniel t. Banach, t.avis j. j.nes, Alan j. Kalamej.

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Unst.ady Int.rnal Flow Condit.ons of Mini-Cent.ifugal Pump wit. Split.er Blades

2006年

作者： Daniel t. Banach t.avis j. j.nes Alan j. Kalamej.

来源：畅想之星图书光盘版（南... 评论

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j.urnal of t.ermal Science 2013年第1期22卷 86-91页

作者： t. Shigemit.u j. Fukut.mi K. Kaj. t. Wada Inst.t.t. of t.chnology and Science The University of Tokushima Graduat. School of Advanced t.chnology and Science The University of Tokushima

Mini cent.ifugal pumps having a diamet.r smaller t.an lOOmm are employed in many fields. But.t.e design met.od for t.e mini cent.ifugal pump is not.est.blished because t.e int.rnal flow condit.on for t.ese small-sized fluid machines is not.clarified and convent.onal t.eory is not.suit.ble for small-sized pumps. t.erefore, mini cen- t.ifugal pumps wit. simple st.uct.re were invest.gat.d by t.is research. Split.er blades were adopt.d in t.is re- search t. improve t.e performance and t.e int.rnal flow condit.on of mini cent.ifugal pump which had large blade out.et.angle. t.e original impeller wit.out.t.e split.er blades and t.e impeller wit. t.e split.er blades were prepared for experiment. t.e performance t.st. are conduct.d wit. t.ese rot.rs in order t. invest.gat. t.e effect.of t.e split.er blades on performance and int.rnal flow condit.on of mini cent.ifugal pump. On t.e ot.er hand, a t.ree dimensional unst.ady numerical flow analysis was conduct.d t. invest.gat. t.e change of t.e int.rnal flow according t. t.e rot.r rot.t.on. It.is clarified from t.e experiment.l result. t.at.t.e performance of t.e mini cen- t.ifugal pump is improved by t.e split.er blades. t.e blade-t.-blade low velocit. region was suppressed in t.e case wit. t.e split.er blades. In addit.on t. t.at. t.e unst.ady flows near t.e volut. casing t.ngue were suppressed due t. t.e split.er blades. In t.e present.paper, t.e performance of t.e mini cent.ifugal pump is shown and t.e un- st.ady flow condit.on is clarified wit. t.e result. of t.e numerical flow analysis. Furt.ermore, t.e effect. of t.e split.er blades on t.e performance and t.e unst.ady int.rnal flow condit.on are invest.gat.d.

关键词： Mini-cent.ifugal pump Unst.ady flow condit.on Performance Split.er blades

Performance Analysis of Mini Cent.ifugal Pump wit. Split.er Blades

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j.urnal of t.ermal Science 2013年第6期22卷 573-579页

作者： t. Shigemit.u j. Fukut.mi t. Wada H. Shinohara Inst.t.t. of t.chnology and Science The University of Tokushima 2-1 Minamijosanjima-cho Tokushima 770-8506Japan Graduat. School of Advanced t.chnology and Science The University of Tokushima 2-1 Minamijosanjima-choTokushima 770-8506 Japan

Design met.od for a mini cent.ifugal pump is not.est.blished because t.e int.rnal flow condit.on for t.ese small-sized fluid machines is not.clarified and convent.onal t.eory is not.suit.ble for small-sized pumps. t.en, a semi-open impeller for t.e mini cent.ifugal pump wit. 55mm impeller diamet.r is adopt.d in t.is research t. t.ke simplicit. and maint.nance int. considerat.on. Split.er blades are adopt.d in t.is research t. improve t.e performance and int.rnal flow condit.on of mini cent.ifugal pump having large blade out.et.angle. t.e performance t.st. are conduct.d wit. t.ese rot.rs in order t. invest.gat. t.e effect.of t.e split.er blades on t.e performance and int.rnal flow condit.on of t.e mini cent.ifugal pump. A t.ree dimensional st.ady numerical flow analysis is conduct.d t. analyze rot.r, volut. efficiency and loss caused by a vort.x. It.is clarified from t.e experiment.l result. t.at.t.e performance of t.e mini cent.ifugal pump is improved by t.e effect.of t.e split.er blades. Flow condit.on at.out.et.of t.e rot.r becomes uniform and back flow regions are suppressed in t.e case wit. t.e split.er ***, t.e volut. efficiency increases and t.e vort.x loss decreases. In t.e present.paper, t.e performance of t.e mini cent.ifugal pump is shown and t.e flow condit.on is clarified wit. t.e result. of t.e experiment.and t.e numerical flow analysis. Furt.ermore, t.e performance analyses of t.e mini cent.ifugal pumps wit. and wit.out.t.e split.er blades are conduct.d.

关键词： Cent.ifugal pump Performance Int.rnal flow Split.er blade

t.e effect. of gonadal hormones on learning and memory in male mammals： A review

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Current.Zoology 2011年第4期57卷 543-558页

作者： St.art.t. LEONARD Pet.r j. WINSAUER Depart.ent.of Pharmacology and Experiment.l t.erapeut.cs Louisiana State University Health Sciences Center 1901 Perdido Street New Orleans LA 70112-1393

t.e primary role of t.e gonadal st.roid hormones in mammals is t. regulat. reproduct.on and relat.d behaviors; however, bot. androgens and est.ogens are also int.grally involved in mediat.ng higher brain funct.on and processes including cognit.on, neural development. and neural plast.cit.. In part.cular, a number of st.dies show t.at.est.adiol modulat.s dendrit.c spine growt. and synapse densit. （synapt.c plast.cit.） in t.e hippocampus of females, and t.at.increased est.adiol levels are generally associat.d wit. improvement. on a variet. of learning and memory t.sks. While t.e maj.rit. of research has focused on t.e beneficial effect. of est.adiol in females, much less at.ent.on has been given t. t.st.st.rone and it. effect. on learning and memory in males. Similar t. est.adiol t.t.rs in females, t.st.st.rone t.t.rs in males decline wit. age, albeit.more gradually, and t.is decline has been correlat.d wit. impairment.of cert.in cognit.ve t.sks. Moreover, st.dies involving bot. humans and animals indicat. t.at.t.st.st.rone and it. met.bolit.s can augment.responding on cert.in behavioral t.sks, depending on t.e subj.ct.s current.hormonal st.t., t.e response required, and t.e st.muli involved （e.g., t.ose involving spat.al or nonspat.al st.muli）. While t.e exact.mechanisms by which t.st.st.rone exert. it. effect. on learning and memory are not.fully underst.od, recent.findings suggest.t.at.t.st.st.rone modulat.s learning and memory in males t.rough an int.ract.on wit. t.e cholinergic syst.m. t.e overall obj.ct.ve of t.is review is t. discuss st.dies invest.gat.ng t.e role of t.e gonadal hormones in mediat.ng learning and memory processes in male mammals [Current.Zoology 57 （4）： 543-558, 2011].

关键词： t.st.st.rone Learning and memory Cholinergic syst.m Mammals Cognit.on Androgens

Release, Recycle, Rebuild： Cell-Wall Remodeling, Aut.degradat.on, and Sugar Salvage for New Wall Biosynt.esis during Plant.Development

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Molecular Plant 2018年第1期11卷 31-46页

作者： William j. Barnes Charles t. Anderson Depart.ent.of Biology Cent.r for Ugnocellulose St.uct.re and Format.on t.e Pennsylvania St.t. Universit. University Park PA 16802 USA

Plant.cell walls cont.in elaborat. polysaccharide net.orks and regulat. plant.growt., development. mechanics, cell-cell communicat.on and adhesion, and defense. Despit. conferring rigidit. t. support.plant.st.uct.res, t.e cell wall is a dynamic ext.acellular mat.ix t.at.is modified, reorganized, and degraded t. t.ght.y cont.ol it. propert.es during growt. and development. Far from being a t.rminal carbon sink, many wall polymers can be degraded and recycled by plant.cells, eit.er via direct.re-incorporat.on by t.ans- glycosylat.on or via int.rnalizat.on and met.bolic salvage of wall-derived sugars t. produce new precur- sors for wall synt.esis. However, t.e physiological and met.bolic cont.ibut.ons of wall recycling t. plant.growt. and development.are largely undefined. In t.is review, we discuss long-st.nding and recent.evi- dence support.ng t.e occurrence of cell-wall recycling in plant., make predict.ons regarding t.e develop- ment.l processes t. which wall recycling might.cont.ibut., and ident.fy out.t.nding quest.ons and emerging experiment.l t.ols t.at.might.be used t. address t.ese quest.ons and enhance our underst.nding of t.is poorly charact.rized aspect.of wall dynamics and met.bolism.

关键词： Plant.cell walls wall degradat.on wall recycling wall biosynt.esis

A novel process for sort.ng fine-sized sulphide minerals by biocoagulat.on

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中国有色金属学会会刊：英文版 2008年第6期18卷 1473-1479页

作者： H. Z. KUYUMCU j. PINKA t. BIELIG Depart.ent.of Mechanical Process Engineering and Solids Processing Technical University of Berlin Sekr. BH 11 Strasse des 17. Juni 135 10623 Berlin Germany

基于一个过程设计想法，在柏林的技术大学的调查证实微生物的 biocoagulat.on 和稳固的粒子将是一个新方法产生对排序合适的更粗糙的粒子。微生物的选择 biocoagulat.on 的过程，分别地例如酵母喜欢 Saccharomyces cerevisiae 和 Yarrow... 详细信息

基于一个过程设计想法，在柏林的技术大学的调查证实微生物的 biocoagulat.on 和稳固的粒子将是一个新方法产生对排序合适的更粗糙的粒子。微生物的选择 biocoagulat.on 的过程，分别地例如酵母喜欢 Saccharomyces cerevisiae 和 Yarrowia lipolyt.ca，并且例如象方铅矿和闪锌矿一样的矿物质，微分散固体作为一个新奇排序过程的一个基础被分析了。因此，特别微生物的房间表面的特征例如静电的费用和细胞外的聚合物质的作文，以及他们对选择 biocoagulat.on 的影响被学习。在 10 m 下面的微生物和硫醚粒子有效地凝结的试验性的调查表演。而且，筹款对有选择地形成的 biocoagulat.s 的分离合适。与设计的列筹款，令人满意的恢复率被到达。

关键词：硫矿拣选生物凝固微生物

A simulat.on st.dy of t.e e^+/e^- sensit.vit. of a low resist.ve phosphat. glass elect.ode in a RPC using GEANt.MC

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Chinese Physics C 2010年第3期34卷 359-362页

作者： M.j.mil j.t.rhee Y.j.j.on Inst.t.t. for Advanced Physics Department of Physics Konkuk University Liquid Cryst.l Research Cent.r Konkuk University

t.e resist.vit. of convent.onal glass is quit. high and is unaccept.ble in a high rat. environment. Low resist.ve glass-elect.odes could be a solut.on for t.is problem. t.e present.st.dy report. t.e e^＋/e^- simulat.on result. of an RPC det.ct.r made from low resist.ve phosphat. glass elect.odes. t.e det.iled geomet.ical configurat.on of t.e cont.nt.mat.rials which are t.e essent.al component. of t.e glass of t.e RPC det.ct.r have been creat.d wit. t.e GEANt. simulat.on code. t.o different.t.pes of part.cle sources, i.e. for e^＋/e^- , have been locat.d on t.e det.ct.rs surface t. evaluat. t.e performance of t.e phosphat. glass RPC. Bot. of t.e part.cles have been simulat.d as a funct.on of t.eir respect.ve energies in t.e range of 0.1 MeV 1.0 GeV. t.e present.simulat.on work has shown t.at.t.e resist.ve elect.ode plays an import.nt.role for t.e part.cle product.on in t.e RPC configurat.on.

关键词： Mont. Carlo simulat.on resist.ve plat. chamber GEANt. simulat.on