检索结果-南通市图书馆

Investigation of turbulence rotation in the SOL and plasma edge of W7-X for different magnetic configurations

Plasma Science and Technology 2020年第6期22卷 21-31页

作者： A KrÄMer-FLeCKeN X HAN M OTTe G ANDA S A BOZHeNKOV D DUNAI G FUCHerT J GeIGer O GrULKe e PASCH e r scott e TrIer M VÉCSeI T WINDISCH S ZOLeTNIK W7-X Team Institute for energy-and Climate research/Plasma Physics Forschungszentrum Jülich GmbH52425 JülichGermany Institute of Plasma Physics Chinese Academy of SciencesHefei 230031People's Republic of China Max Planck Institut für Plasmaphysik 17491 GreifswaldGermany Wigner research Centre for Physics 1525 BudapestHungary Max Planck Institut für Plasmaphysik 85748 GarchingGermany 不详

The W7-X stellarator is optimized with respect to neoclassical *** turbulent transport plays an important *** is equipped with an inertial cooled graphite divertor which intersects the island chain at the plasma edge depending on the magnetic *** control coils and the plasma current modify the iota profile at the plasma edge and shift the position of the island *** monitor the effects on the poloidal propagation velocity in the scrape-off layer(SOL)and the plasma edge,an O-mode Poloidal Correlation reflectometer(PCr)is used which simultaneously monitors the propagation of low-k *** in the density range of 0.6?×?1019 m-3 to2?×?1019 m-3 it covers a large part of the SOL and the plasma edge and allows for the experimental determination in the last closed flux surface(LCFS)and the associated shear layer in low to middensity *** this paper it is shown that the propagation in the shear layer and its vicinity is determined best,when based on an elliptical *** magnetic configurations with magnetic edge topology of five independent islands forι?=?1 and six linked islands forι?=?0.81 are *** the effects of the plasma current and additional control coils on the edge magnetic topology are *** coherence spectra of antenna pairs for different poloidal separations is *** a decomposition method for the measured coherence spectra the characterization of turbulence spectra is possible with respect to *** band turbulence and quasi coherent modes.A strong reduction of the broad band turbulence is observed in the vicinity of the LCFS which is evidence for the suppression of low-k turbulence at the shear layer.

关键词： stellarator correlation reflectometer turbulence rotation scrape-off layer island divertor

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

个人急救反应系统PerS的发展与应用

引用

医疗卫生装备 2004年第1期25卷 27-29页

作者：王晓民 r.e scott Laurence Turner 周卫东山东省立医院远程医学中心济南市250021 卡尔加里大学医学院远程医学中心卡尔加里大学电子与计算机工程学院山东大学信息科学与工程学院济南市250100

个人急救反应系统作为老年人、残疾人独立生活的辅助工具,近来在西方国家拥有越来越多的用户。本文综述了该系统的发展历史和美国、英国、加拿大等国拓展该项业务的经验。作为医疗电子化系统工具之一的PerS,分析了其工作原理、特点和使... 详细信息

个人急救反应系统作为老年人、残疾人独立生活的辅助工具,近来在西方国家拥有越来越多的用户。本文综述了该系统的发展历史和美国、英国、加拿大等国拓展该项业务的经验。作为医疗电子化系统工具之一的PerS,分析了其工作原理、特点和使用效益。最后,通过分析在我国开展该项工作的可能性和潜在价值,提出在我国大力开展该项工作的建议。

关键词：个人急救反应系统 PerS 医疗电子化远程医疗家庭监护急症

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

CAVe系统的发展及在医学领域中的运用

引用

医疗卫生装备 2004年第3期25卷 26-28页

作者：王晓民 r.e scott 周卫东 Laurence Turner 山东省立医院山东省远程医学中心济南市250021 卡尔加里大学医学院远程医学中心山东大学信息科学与工程学院济南市250100

CAVe系统是虚拟现实技术运用中很受欢迎的一个系统工具,越来越多的科研教学工作围绕这一高科技工具展开。结合所访问的卡尔加里大学医学院的CAVe系统分析了该系统的结构和工作原理,并对未来CAVe系统在医学领域的运用作了简要描述。

关键词： CAVe系统医学系统工具三维模拟虚拟现实Vr

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

建模分析科技进步对推动医疗电子化发展的影响

引用

医疗卫生装备 2004年第6期25卷 26-29页

作者：王晓民 Laurence Turner r.e scott 周卫东山东省立医院济南市250021 卡尔加里大学山东大学信息科学与工程学院济南市250100

文章对新技术推动下的医疗电子化领域进行了探讨,通过建立一个″洋葱″模型模拟了该领域下信息流动、信息分析和采取措施的过程。该模型以科技为核心,选取了速度、存储性、持久性、保密性和准确性等5个对远程医学有关键性影响的科技属... 详细信息

文章对新技术推动下的医疗电子化领域进行了探讨,通过建立一个″洋葱″模型模拟了该领域下信息流动、信息分析和采取措施的过程。该模型以科技为核心,选取了速度、存储性、持久性、保密性和准确性等5个对远程医学有关键性影响的科技属性。基于该模型,就远程会诊,电子病历的应用进行了相应分析,初步揭示了现代科技发展对于医疗电子化的推动作用。

关键词：建模分析医疗电子化远程医学远程医疗

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

INTerNeT上的国际远程医学资源与信息

引用

医疗卫生装备 2003年第12期24卷 38-40页

作者：王晓民苏本华张喜雨 r.e.scott 山东省立医院济南市250021 加拿大卡尔加里大学远程医学部

近年来,随着因特网(INTerNeT)的日益普及,越来越多的科研资料和信息可以通过因特网进行查询.

关键词： INTerNeT 国际远程医学资源医学信息一般性查询搜索引擎

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

1994-2003年远程医学文献统计分析及远程医学发展预测

引用

医疗设备信息 2003年第11期18卷 1-3,85页

作者：王晓民李广义周卫东 r.e scott 山东省立医院山东济南250021 山东大学信息科学与工程学院山东济南250100 卡尔加里大学医学院远程医学中心

文章以从中国期刊全文数据库 (CJFD)中检索到的数百篇与远程医学有关的文献资料为基础 ,运用该数据库检索技巧 ,就1994年以来每年与远程医学相关的文献数量统计作图 ,并对查找的结果所涉及的领域以及刊载杂志、内容等方面做了简略分析 ... 详细信息

文章以从中国期刊全文数据库 (CJFD)中检索到的数百篇与远程医学有关的文献资料为基础 ,运用该数据库检索技巧 ,就1994年以来每年与远程医学相关的文献数量统计作图 ,并对查找的结果所涉及的领域以及刊载杂志、内容等方面做了简略分析 ,同时与用MeDLINe检索的国际远程医学文献资料在发展进程和数量上进行了图形对比分析 ,对近年影响远程医学发展的因素进行了探讨 ,并对远程医学今后发展趋势做了简单预测。

关键词：远程医疗远程医学信息文献统计

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Free vibration and transient response of double curved beams connected by intermediate straight beams

引用

Applied Mathematics and Mechanics(english edition) 2025年第1期46卷 37-62页

作者： r.A.JAFArI-TALOOKOLAeI H.GHANDVAr e.JUMAeV S.KHATIr T.CUONG-Le School of Mechanical engineering Babol Noshirvani University of Technology Department of Mechanical engineering Faculty of Engineering New Uzbekistan University University of Business and Science Center for engineering Application and Technology Solutions Ho Chi Minh City Open University

This paper investigates the free vibration and transient response of interconnected structures including double curved beams and intermediate straight beams,which are all constructed from functionally graded porous(FGP) materials. The strain potential and kinetic energies of each beam along with the work done by the external force are calculated. Additionally, a higher-order beam element is introduced to derive stiffness and mass matrices, along with the force vector. The curved and straight beams are discretized, and their assembled stiffness, mass matrices, and force vectors, are *** conditions at the joints are used to derive the total matrices of the entire structure. Subsequently, the natural frequencies and transient response of the system are determined. The accuracy of the mathematical model and the self-developed computer program is validated through the comparison of the obtained results with those of the existing literature and commercial software ANSYS, demonstrating excellent ***, a comprehensive study is conducted to investigate the effects of various parameters on the free vibration and transient response of the considered structure.

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Tumor necrosis factor alpha inhibits in vitro bovine embryo development through a prostaglandin mediated mechanism

引用

Journal of Animal Science and Biotechnology 2012年第1期3卷 21-24页

作者： Lauren r Jackson Char e Farin scott Whisnant Department of Animal Science North Carolina State University PO Box 7621 Raleigh NC 27695-7621 USA

Mastitis or other infectious diseases have been related to reduced fertility in cattle. Inflammatory cytokines such as tumor necrosis factor α （TNFα are released in response to infection and may have negative effects on embryo development, in the current study the effect of exposure to TNFα on the development of in vitro fertilized bovine embryos was examined. Indomethacin, a prostaglandin synthesis inhibitor, was used to determine if blockade of prostaglandin synthesis would alter the effects of TNFα Ovaries were obtained from a local abattoir and immature COC were isolated from 2-10 mm follicles, in vitro matured and fertilized. After fertilization, groups of presumptive zygotes were randomly placed into either control development medium, medium containing 25 ng/mL TNFα or medium containing 25 ng/mL TNFα plus 1 μg/mL indomethacin. The proportion of blastocysts formed was assessed at day 7 of culture. Fewer embryos exposed to TNFα alone reached the blastocyst stage （17.5 ± 2.4%, P 〈 0.01） compared with controls （30.5 ± 2.4%） or embryos developed in TNFα plus indomethacin （25.8 ± 2.8%）. There was no difference between control embryos and embryos developed in TNFα plus indomethacin. These results indicate that TNFα is inhibitory to the in vitro development of bovine embryos and that this inhibition may be mediated by prostaglandins because it can be blocked by indomethacin.

关键词： tumor necrosis factor o bovine embryo indomethacin

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Assessing display variability in wild brown anoles Anolis sagrei using a mechanical lizard model

引用

Current Zoology 2011年第2期57卷 140-152页

作者： Sarah r. PArTAN Peter OTOVIC Virginia L. PrICe scott e. BrOWN School of Cognitive Science Hampshire College Amherst MA 01002 USA Department of Psychology University of South Florida St. Petersburg FL 33701 USA

Signals used for species identity ought to be highly stereotyped so as to facilitate immediate recognition by conspecifics. It is surprising therefore to find variability in putative species signature displays. The brown anole Anolis sagrei has a high degree of variability in its signature bobbing display. In this study we collected descriptive data on variability in the temporal structure of wild brown anole bobbing patterns, finding that no two displays analyzed had the same temporal structure, and we also tested whether wild brown anoles prefer the signature display over an alternate display pattern by using mechanical robot playbacks in the field. As a response metric we assessed whether or not the lizards showed social responses （pushup, dewlap extension, or head-nod） in response to the robotic presentations. We found that the lizards responded slightly more to the signature than to the alternate pattern, providing support for the idea that despite the variability seen in displays, the signature pattern is meaningful to them. We tested two other independent variables： speed of the display and elevation of the robot during its display, neither of which was significant. Dewlap extensions were given predominantly by adult males and were more likely to be given in the breeding season than the nonbreeding season. Pushups and head-nods were given equally by males and a combined class of females and juveniles, and were not seasonal. Head-nods increased after the robot turned off, suggesting that they may be used in a conversational turn-taking style during communication .

关键词： Species recognition ethorobotics Visual signals Territoriality Signature display Sex differences

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

extract rules by Using rough Set and Knowledge-Based NN

引用

Journal of Computer Science & Technology 1998年第3期13卷 279-284页

作者：王士同 e.scott 等 DepartmentofComputer EastChinaShipbuildingInstituteZhenjiang212003PR.China DepartmentofComputer Ro

In this paper, rough set theory is used to extract roughly-correct inference rules from information systems. Based on this idea, the learning algorithm erCr is presented. In order to refine the learned roughly-correct inference rules, the knowledge-based neural network is used. The method presented here sufficiently combines the advanages of rough set theory and neural network.

关键词： rough set theory ,knowledge-based NN (neural network) knowledge discovery machine learning

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：