检索结果-南通市图书馆

Wear mechanism and debris analysis of PEEK as an alternative to CoCrMo in the femoral component of total knee replacement

引用

Friction 2023年第10期11卷 1845-1861页

作者： Xinyue ZHANG Tao ZHANG Kai CHEN handong xu Cunao FENG Dekun ZHANG School of Mechatronic Engineering China University of Mining and TechnologyXuzhou 221116China School of Materials and Physics China University of Mining and TechnologyXuzhou 221116China

The polyetheretherketone(PEEK)-highly cross-linked polyethylene(XLPE),all-polymer knee prosthesis has excellent prospects for replacing the traditional metal/ceramic-polyethylene joint prosthesis,improving the service life of the joint prosthesis and the quality of patients’*** long-term wear mechanism of PEEK-XLPE knee joint prosthesis is comprehensively evaluated from wear amount,wear morphology,and wear debris compared to that of CoCrMo-XLPE joint *** 5 million cycles of in vitro wear,the wear loss of XLPE in PEEK-XLPE(30.9±3.2 mg)is lower than that of XLPE in CoCrMo-XLPE(32.1±3.1 mg).Compared to the XLPE in CoCrMo-XLPE,the plastic deformation of XLPE in PEEK-XLPE is more severe in the early stage,and the adhesive peeling and adhesion are lighter in the later *** size distribution of XLPE wear debris in PEEK-XLPE is relatively dispersed,which in CoCrMo-XLPE is relatively *** debris is mainly flake and block debris,and the wear mechanism of XLPE was abrasive *** wear volume per unit area of PEEK femoral condyle(10.45×10^(5)μm^(3)/mm^(2))is higher than that of CoCrMo(8.32×10^(5)μm^(3)/mm^(2)).The PEEK surface is mainly furrows and adhesions,while the CoCrMo surface is mainly furrows and corrosion *** PEEK wear debris is mainly in flakes and blocks,and the CoCrMo wear debris is mainly in the shape of rods and *** wear mechanism of PEEK is abrasive wear and adhesion,and that of CoCrMo is abrasive wear and corrosion.

关键词： polyetheretherketone(PEEK)-highly cross-linked polyethylene(XLPE) cobalt-chromium-molybdenum(CoCrMo)-XLPE wear debris wear mechanism

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

Calorimetric power measurements in the EAST ECRH system

引用

Plasma Science and Technology 2017年第10期19卷 91-102页

作者： Weiye xu handong xu Fukun LIU Jian WANG Xiaojie WANG Yongzhong HOU Institute of Plasma Physics Chinese Academy of Sciences Hefei 230031 People＇s Republic of China

In this paper, the measurement method of calorimetric power for an electron cyclotron resonance heating（ECRH） system for EAST is presented. This method requires measurements of the water flow through the cooling circuits and the input and output water temperatures in each cooling circuit. Usually, the inlet water temperature stability is controlled to obtain more accurate *** influence of the inlet water temperature change on the measurement results is analyzed for the first time in this paper. Also, a novel temperature calibration method is proposed. This kind of calibration method is accurate and effective, and can be easily implemented.

关键词： power measurement calorimetric method data acquisition EAST tokamak ECRH

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

Experimental Investigation of Lower Hybrid Wave Coupling in HT-7

引用

Plasma Science and Technology 2013年第10期15卷 989-995页

作者： KONG Erhua DING Bojiang ZHANG Ting QIN Yongliang SHAN Jiafang LIU Fukun LI Miaohui ZHANG Lei WANG Mao LIU Liang xu handong JIA Hua WU Zege FENG Jianqiang ZHAO Lianmin YANG Yong Institute of Plasma Physics Chinese Academy of Sciences Hefei 230031 China School of Physics Hefei University of Technology Hefei 230009 China High Magnetic Field Laboratory Chinese Academy of Sciences Hefei 230031 China

Experiments on lower hybrid wave （LHW） coupling were investigated in the HT- 7 tokamak. Good coupling of LHW plasma has been demonstrated at different conditions in the HT-7 tokamak. Relevant results have proved that LHW-plasma coupling is affected by the phase difference between adjacent waveguides. Furthermore, the edge density around the grill and relevant coupling can be adjusted by changing the plasma line average density or the gap value between the LH grill and the last closed flux surfaces （LCFS）. It is found that the coupling of LHWs becomes poor when the edge density around the LH grill is large enough in the HT-7 tokamak, and that coupling remains good with a proper edge density. With increasing LHW power, it is also found that the reflection coefficients （RCs） increase due to non-linear effects under conditions of low edge recycling, but can decrease under high edge recycling. The edge density depends mainly on the competition between the ponderomotive force （PMF） and the edge recycling intensity in the HT-7 tokamak.

关键词： LH wave coupling plasma edge density phase difference ponderomotiveforce

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

The Influence of Neutral Beam Injection on the Heating and Current Drive with Electron Cyclotron Wave on EAST

引用

Plasma Science and Technology 2016年第11期18卷 1064-1068页

作者： CHANG Pengxiang WU Bin WANG Jinfang LI Yingying WANG Xiaoguang xu handong WANG Xiaojie LIU Yong ZHAO Hailin HAO Baolong YANG Zhen ZHENG Ting HU Chundong Institute of Plasma Physics Chinese Academy of Sciences Hefei 230031 China Center for Fusion Energy Science and Technology Chinese Academy of Engineering Physics Mianyang 621900 China

Both neutral beam injection （NBI） and electron cyclotron resonance heating （ECRH） have been applied on the Experimental Advanced Superconducting Tokamak （EAST） in the 2015 campaign. In order to achieve more effective heating and current drive, the effects of NBI on the heating and current drive with electron cyclotron wave （ECW） are analyzed utilizing the code TORAY and experimental data in the shot #54411 and #54417. According to the experimental and simulated results, for the heating with ECW, NBI can improve the heating efficiency-and move the power deposition place towards the inside of the plasma. On the other hand, for the electron cyclotron current drive （ECCD）, NBI can also improve the efficiency of ECCD and move the place of ECCD inward. These results will be valuable for the center heating, the achievement of fully non-inductive current drive operation and the suppression of magnetohydrodynamic （MHD） instabilities with ECW on EAST or ITER with many auxiliary heating methods.

关键词： ECRH NBI EAST TORAY

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

论灭绝种族罪的“特定意图”

引用

武大国际法评论 2023年第6期7卷 96-119页

作者：徐瀚冬中国政法大学国际法学院

灭绝种族罪的“全部或部分消灭民族、种族、族裔或宗教团体”的意图要求是一种与行为一般意图不同的特殊/特定意图,是将灭绝种族罪与危害人类罪区分开来的重要构成要件。特定意图具有特殊性,是灭绝种族罪定罪的最后一步,因而国际法庭十... 详细信息

灭绝种族罪的“全部或部分消灭民族、种族、族裔或宗教团体”的意图要求是一种与行为一般意图不同的特殊/特定意图,是将灭绝种族罪与危害人类罪区分开来的重要构成要件。特定意图具有特殊性,是灭绝种族罪定罪的最后一步,因而国际法庭十分重视对该要件的论证。然而,由于相关规定的表述过于抽象和模糊,特定犯罪意图成为国际法庭在判定灭绝种族罪时的一个难题。许多国际法庭对灭绝种族罪特定意图的认定存在方法刻板化、参考因素模糊化、证明标准模式化的问题。在这些问题的冲击下,国际法庭陷入两难境地:一方面,特定意图的认定困境可能影响灭绝种族罪的定罪;另一方面,将模棱两可的事实贴合特定意图以求定罪可能影响审判的公平。对此,国际法庭可从方法分化入手,基于犯罪者层级的划分,对不同层级犯罪者分别适用不同方法,加强对争议性参考因素的解释,合理转化证明标准,逐步解决对特定意图的认定问题。

关键词：国际刑法灭绝种族罪特定意图目的导向方法

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

国际刑事法院2022年度实践综述

中国国际法年刊

引用

中国国际法年刊 2022年 341-366页

作者：徐瀚冬中国政法大学国际法学院

2022年是国际刑事法院(以下简称法院)成立二十周年,法院的司法活动在本年度取得了重大进展,除已在审理的两起案件外,三起案件开始进入审理程序;法院签发了三份逮捕令,启封第四份逮捕令;一名嫌疑人被移交法院;检察官开启了两项调查,并完... 详细信息

2022年是国际刑事法院(以下简称法院)成立二十周年,法院的司法活动在本年度取得了重大进展,除已在审理的两起案件外,三起案件开始进入审理程序;法院签发了三份逮捕令,启封第四份逮捕令;一名嫌疑人被移交法院;检察官开启了两项调查,并完成了两项初步审查。

关键词：国际刑事法院审理程序初步审查逮捕令检察官嫌疑人

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

Experimental study of density pump-out on EAST

引用

Plasma Science and Technology 2017年第1期19卷 36-43页

作者： Shouxin WANG Haiqing LIU Yinxian JIE Qing ZANG Bo LYU Tao ZHANG Long ZENG Shoubiao ZHANG Nan SHI Ting LAN Zhiyong ZOU Weiming LI Yuan YAO xuechao WEI Hui LIAN Gen LI handong xu Xinjun ZHANG Bin WU Youwen SUN EAST Team Institute of Plasma Physics Chinese Academy of Sciences Hefei 230031 People's Republic of China University of Science and Technology of China Hefei 230026 People's Republic of China Tianjin University of Technology Tianjin 300384 People's Republic of China

In the experimental advanced superconducting tokamak,density pump-out phenomena were observed by using a multi-channel polarimeter-interferometer system under different heating schemes of ion cyclotron resonant heating,electron cyclotron resonance heating,and neutral beam *** density pump-out was also induced with application of resonant magnetic perturbation,accompanied with a degradation of particle *** the comparison analysis in all heating schemes,the typical plasma parameters are plasma current 400 k A,toroidal field 2 T,and line average density 2×10^19m^-*** experimental results show that the degree of pump-out is concerned with electron density and heating *** density deuterium low confinement（L-mode） plasmas（〈3.5×10^19m^-3） show strong pump-out *** density pump-out correlated with a significant drop of particle confinement.

关键词： density pump-out particle confinement ECRH ICRF NBI RMP

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

Observation and characterization of the effect of electron cyclotron waves on toroidal rotation in EAST L-mode discharges

引用

Plasma Science and Technology 2017年第10期19卷 14-19页

作者： Jun CHEN Ruiji HU Bo LYU Fudi WANG Xiaojie WANG handong xu Yingying LI Jia FU Xianghui YIN Dajun WU Fukun LIU Qing ZANG Haiqing LIU Yuejiang SHI Shifeng MAO Yi YU Baonian WAN Minyou YE Yongcai SHEN EAST team School of Nuclear Science and Technology University of Science and Technology of China Hefei 230026 People＇s Republic of China Institute of Plasma Physics Chinese Academy of Sciences Hefei 230031 People＇s Republic of China Department of Nuclear Engineering Seoul National University Seoul 151-742 Korea School of Physics and Electrical Engineering of Anqing Normal University Anqing 246011 People＇s Republic of China

The change in the toroidal rotation of plasma caused by electron cyclotron wave（ECW） injection has been observed in EAST. It is found that the response of the rotation is similar for all possible ECW toroidal injection angles. The core toroidal rotation velocity increases in the co-current direction along with a rise in the plasma temperature and stored energy. The profile of the electron temperature, ion temperature and toroidal rotation velocity gradually become *** change in toroidal rotation in the core increases with the ECW injection power. Different behavior is observed when the ECWs are injected into low hybrid current drive（LHCD） target plasmas, where the electron temperature and rotation profile become peaked, while the ion temperature profile flattens after ECW injection, suggesting different transport characteristics in energy and momentum.

关键词： ECW plasma toroidal rotation LHCD x-ray crystal spectrometer

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

基于大观念的高中英语单元整体教学实践——以Unit 5 Languages around the world为例

引用

英语教师 2024年第13期24卷 74-79页

作者：李娟徐汉东山东省济南第一中学山东济南250100 山东省济南市教育教学研究院山东济南250002

分析目前英语单元整体教学设计存在的问题。阐述大观念的内涵及其对单元整体教学的意蕴。以新人教版高中《英语》必修一Unit 5 Languages around the world为例,探索基于大观念的高中英语单元整体教学的实践路径,即聚焦单元大观念,提取... 详细信息

分析目前英语单元整体教学设计存在的问题。阐述大观念的内涵及其对单元整体教学的意蕴。以新人教版高中《英语》必修一Unit 5 Languages around the world为例,探索基于大观念的高中英语单元整体教学的实践路径,即聚焦单元大观念,提取单元核心价值;梳理单元与课时语篇的内在逻辑,提炼各语篇的小观念,合理安排单元课时;基于学生的已知、学习难点和发展点,设计多维融合、递进发展的单元整体教学目标和课时教学目标;基于大小观念设计进阶式的教学环节和学生活动;基于单元整体、课时教学目标和学情,合理设计评价活动和评价量规。

关键词：大观念高中英语单元整体教学教学评一体化

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

教学评一体化视域下的线上线下混合式英语教学实践研究

引用

英语教师 2024年第5期24卷 138-142页

作者：李娟徐汉东山东省济南第一中学山东济南250100 山东省济南市教育教学研究院山东济南250002

阐述教学评一体化的核心。从如何教、如何学、如何评三个方面探究教学评一体化视域下的线上线下混合式英语教学。指出教师要自觉探索线上线下英语教学的有效策略和路径,做问题的解决者,线上线下融合式教学的导引者、导教者、导评者,创... 详细信息

阐述教学评一体化的核心。从如何教、如何学、如何评三个方面探究教学评一体化视域下的线上线下混合式英语教学。指出教师要自觉探索线上线下英语教学的有效策略和路径,做问题的解决者,线上线下融合式教学的导引者、导教者、导评者,创造性地提高线上教学素养,不断反思、总结和改进,呈现动态的教学评一体化课堂。

关键词：教学评一体化线上线下混合式教学英语教学可视化思维

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：