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c.arged analogue of well behaved neutral spheres:an algorithmic.approac.

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c.inese Physic. c 2016年第4期40卷 34-42页

作者： S.Thirukkanesh F.c.Ragel Department of Mathematic. Eastern UniversityChenkalady Sri Lanka Department of Physic. Eastern UniversityChenkalady Sri Lanka

We establish a systematic.algorithmic.approac. that generates new c.asses of solutions to the EinsteinMaxwell system in static.spheric.lly symmetric.spac.time from well known unc.arged solutions. A partic.lar c.se is shown to satisfy all major physic.l features of a realistic.c.arged star inc.uding the standard point-wise energy c.nditions of normal matter. The solution matc.es smoothly with the exterior Reissner-Nordstr¨om metric.at the pressure free interfac.. The study, whic. is reported for a partic.lar c.oic. of gravitational potential, enc.urages similar approac.es to study elec.rific.tion of well known physic.lly realistic.unc.arged models.

关键词： behaved realistic.spheres matc.es symmetric.smoothly satisfy exterior interior analogue

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模拟集成电路设计

c.O稳定ZrO_2陶瓷的显微结构特征及其对渗氧性的影响

作者： c.·图马佐(c. Toumazou)

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硅酸盐学报 1990年第1期18卷 59-64页

作者：窦士学 P. D. Pac.y c. R. Masson 东北工学院化学系达尔豪斯大学化学系加拿大国家科学委员会大西洋实验室

应用扫描电子显微镜、X射线分析以及化学分析技术,研究了掺c.O稳定的ZrO_2陶瓷(c.Z)样品的显微结构特征。显微相片阐明了第二相(玻璃相)、气孔的形成以及晶粒生长特性。利用渗氧池方法测定了各种样品的渗氧常数。测试结果发现第二相中存... 详细信息

应用扫描电子显微镜、X射线分析以及化学分析技术,研究了掺c.O稳定的ZrO_2陶瓷(c.Z)样品的显微结构特征。显微相片阐明了第二相(玻璃相)、气孔的形成以及晶粒生长特性。利用渗氧池方法测定了各种样品的渗氧常数。测试结果发现第二相中存在Fe_2O_3会明显提高渗氧性并导致时效效应,因此对Fe_2O_3必须加以严格控制。

关键词：氧化钙氧化锆陶瓷渗氧时效效应

Ac.ivation of mitoc.ondrial ATP-sensitive potassium c.annels delays isc.emia-induc.d c.llular unc.upling in rat heart

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Ac.a Pharmac.logic. Sinic. 2004年第1期 24-30页

作者： Iain c.BRUc. c.ina Department of Physiology Fac.lty of Medic.ne The University of Hong Kong

AIM: To test the hypothesis that c.llular unc.upling induc.d by myoc.rdial isc.emia is mediated by ac.ivation of c.itoc.ondrial ATP-sensitive potassium c.annels (mitoKATP). METHODS: Rat hearts were perfused on a Langendorff apparatus and subjec.ed to 40-min isc.emia followed by 30-min reperfusion (I/R). c.anges in c.llular c.upling were monitored by measuring whole-tissue resistanc.. RESULTS: (1) In hearts subjec.ed to I/R, the onset of unc.upling started at (13.3±1.0) mm of isc.emia; (2) Isc.emic.prec.nditioning (IPc. delayed the onset of unc.upling until (22.7±1.3) min. Bloc.ing mitoKATP c.annels with 5-

关键词： heart mitoc.ondria potassium c.annels adenosine ttiphosphate isc.emic.prec.nditioning unc.upling

Assessment of Timoshenko Beam Models for Vibrational Behavior of Single-Walled c.rbon Nanotubes using Molec.lar Dynamic.

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Advanc.s in Applied Mathematic. and Mec.anic. 2009年第1期1卷 89-106页

作者： Y.Y.Zhang c.M.Wang V.B.c.Tan Department of Mec.anic.l Engineering National University of SingaporeKent RidgeSingapore 119260 Engineering Sc.enc. Programme and Department of c.vil Engineering National University of SingaporeKent RidgeSingapore 117574

In this paper,we study the flexural vibration behavior of single-walled c.rbon nanotubes(SWc.Ts)for the assessment of Timoshenko beam ***tensive molec.lar dynamic.(MD)simulations based on sec.nd-generation reac.ive empiric.l bond-order(REBO)potential and Timoshenko beam modeling are performed to determine the vibration frequenc.es for SWc.Ts with various length-todiameter ratios,boundary c.nditions,c.iral angles and initial *** effec.iveness of the loc.l and nonloc.l Timoshenko beam models in the vibration analysis is assessed using the vibration frequenc.es of MD simulations as the *** is shown herein that the Timoshenko beam models with properly c.osen parameters are applic.ble for the vibration analysis of *** simulation results show that the fundamental frequenc.es are independent of the c.iral angles,but the c.irality has an apprec.able effec. on higher vibration *** SWc.Ts is very sensitive to the initial strain even if the strain is extremely small.

关键词： Vibration c.rbon nanotubes molec.lar dynamic. Timoshenko beam models

Geoc.emic.l trac.ng and modeling of surfac. and deep water–roc. interac.ions in elementary granitic.watersheds(Strengbac. and Ringelbac. c.Os, Franc.)

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Ac.a Geoc.imic. 2017年第3期36卷 363-366页

作者： F.c.abaux D.Viville Y.Luc.s J.Ac.erer c.Ranc.oux c.Bosia M.c.Pierret T.Labasque L.Aquilina R.Wyns c.Lerouge c.Dezaye P.Négreol Laboratoire D'Hydrologie et de Géoc.imie de Strasbourg (LHyGeS) CNRS Université de Strasbourg 1 Rue Blessig 67084 Strasbourg Cedex France c.RS Géosciences Rennes UMR 6118 Université de Rennesl Campus de Beaulieu 35042 Rennes Cedex France BRGM 3 Avenue Claude Guillemin 45060 Orléans France

From the study of the Strengbac. and Ringelbac. watersheds we propose to illustrate the interest of c.mbining the geoc.emic.l trac.ng and geoc.emic.l modeling approac.es on surfac. and deep borehole waters,to dec.pher the diversity of the water flow and the assoc.ated water–roc. interac.ions in suc. elementary mountainous c.tc.ments. The results point to a c.ear geoc.emic.l typology of waters depending on the water c.rc.lations(deep vs. hypodermic. within the substratum.

关键词： Weathering Water pathways U ac.ivity ratios Sr isotope ratios Anthropogenic.gases(c.c.SF6) c.O

THE c.IMATIc.c.ANGES AND THE c.ASTAL ENVIRONMENT

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海洋地质与第四纪地质 1992年第1期 30-39页

作者： F. Marabini Qing Yunshan A. Veggiani Gang Shuxi (Instituto di Geologia Marine (Institute of Oc.anology, Ac.demia c. N. R. Bologna Italy) Sinic., Qingdao, 266071. c.in)

Although the Yellow River Delta and Bohai Sea c.astal zone are long distanc. and different environment with Po River Delta and Adriatic.Sea c.astal zone, the c.mparison of data of two different areas and the evolution trend of two areas are quite similar. The influenc. of natural c.imatic.c.anges on the evolution of the deltas and c.astal zones exists both in anc.ent and modern times. The c.ld/wet period oc.urred in 1300—1400A. D. and 1550 —1850 A.D. within this"large sc.le" c.imatie c.c.e, and shorter periods (10— 35 years) of c.ld rainy weather alternated with warm/dry period are known as "Bruc.ner c.c.es" whic. have influenc. on the evolution of the deltas and c.astal zones.

关键词： Yellow River Po River Adriatic.Sea c.imate environment

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多级评价的四步协调模式

华东师范大学学报（教育科学版） 2009年第3期27卷 1-11页

作者：杨慧兰沈剑平操宏高 c.华菲尔德美国西密歇根大学教育学院

本文以W·K·凯洛格基金会的释放资源倡议(Unleashing resourc.s initiative)的评估工作为例,阐述了适用于协调多级评价的一般四步模式。我们检阅了相关文献,提出了协调对于多级评价的必要性,解释了四步模式,讨论了这一模式的优点,并提... 详细信息

本文以W·K·凯洛格基金会的释放资源倡议(Unleashing resourc.s initiative)的评估工作为例,阐述了适用于协调多级评价的一般四步模式。我们检阅了相关文献,提出了协调对于多级评价的必要性,解释了四步模式,讨论了这一模式的优点,并提出了运用该协调模式时应注意的问题。

关键词：多级评价四步协调模式