检索结果-南通市图书馆

Improvement of strength and ductility synergy in a room-temperature stretch-formable Mg-Al-Mn alloy sheet by twin-roll casting and low-temperature annealing

引用

Journal of Magnesium and Alloys 2022年第4期10卷 1066-1074页

作者： T.Nakata C.Xu K.Kaibe y.yoshida K.yoshida S.Kamado Nagaoka University of Technology 1603-1KamitomiokaNagaoka 940-2188Japan School of Materials Science and Engineering Harbin Institute of Technology Harbin 150001China Sumitomo Electric Industries Ltd.1-1-1 KoyakitaItami 664-0016Japan

Strength and ductility synergy in an Mg-3mass%Al-Mn(AM30)alloy sheet was successfully improved via twin-roll casting and annealing at *** AM30 alloy sheet produced by twin-roll casting,homogenization,hot-rolling,and subsequent annealing at 170℃ for 64 h exhibits a good 0.2%proof stress of 170 MPa and a large elongation to failure of 33.1%along the rolling *** sheet also shows in-plane isotropic tensile properties,and the 0.2%proof stress and elongation to failure along the transverse direction are 176 MPa and 35.5%,*** the sheet produced by direct-chill casting also shows moderate strengths if the annealing condition is same,the direct-chill casting leads to the deteriorated elongation to failure of 23.9%and 30.0%for the rolling and transverse directions,*** well as such excellent tensile properties,a high room-temperature stretch formability with an Index Erichsen value of 8.3 mm could be obtained in the twin-roll cast sheet annealed at 170℃ for 64 *** annealing at a higher temperature further improves the stretch formability;however,this results in the decrease of the tensile *** characterization reveals that the excellent combination of strengths,ductility,and stretch formability in the twin-roll cast sheet annealed at the low-temperature annealing is mainly attributed to the uniform recrystallized microstructure,fine grain size,and circular distribution of(0001)poles away from the normal direction of the sheet.

关键词： Magnesium Rolling Tensile property Room temperature formability Twinning

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

燃用裂解甲醇的点燃式直喷发动机

引用

世界汽车 1987年第5期 26-28+62页

作者： y.yoshida I.yamaguchi 徐俊鼎

日本汽车研究所努力发展具有更高热效率和更洁净的排放特性的甲醇燃料发动机。使用裂解甲醇和甲醇直接喷入各缸的一种双燃料系统发动机,在热效率方面可达到柴油机的同等水平。研制的甲醇发动机已装用到了30座位的中型客车上。它还配备... 详细信息

日本汽车研究所努力发展具有更高热效率和更洁净的排放特性的甲醇燃料发动机。使用裂解甲醇和甲醇直接喷入各缸的一种双燃料系统发动机,在热效率方面可达到柴油机的同等水平。研制的甲醇发动机已装用到了30座位的中型客车上。它还配备了各种电子控制装置,用以控制喷射定时、点火定时、裂解气流量和进气流量,使之达到最佳热效率和低排放。

关键词：甲醇直接喷射排放特性双燃料系统气缸一元醇汽缸气动元件发动机有效热效率

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

A Novel Signaling Pathway Downstream of the ErbB2 Receptor Kinase

A Novel Signaling Pathway Downstream of the ErbB2 Receptor K...

引用

Third Congress of the Asian-Pacific Organization for Cell Biology

作者： T.yamamoto y.yoshida N.Ikematsu T.Suzuki S.Matsuda J.Kawamura-Tsuzuku J.Fujimoto Inst. of Med. Sci. Univ. of TokyoMinato-kuTokyo 108-8639JAPAN

Tob was first identified as a protein that interacted with the receptor tyrosine kinase ErbB2 by screening an expression cDNA library with the 32P-labeled ErbB2 probe. Characterization of Tob cDNAs revealed that it was homologous to the anti-proliferative gene products BTG-1 and PC3 at the amino-terminal half. As expected from the sequence homology, the growth of the NIH3T3 cells microinjected with the Tob expression

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

大屏幕液晶电视图像画质的改善

引用

现代显示 2005年第10期 23-26页

作者： y.yoshida y.Kikuchi M.Sugino S.Daly 张永胜夏普公司夏普美国实验室天马微电子公司

描述了大屏幕液晶电视图像画质的改善。在屏幕尺寸上已经超过C R T的液晶电视,即使屏幕尺寸达到60英寸,也可以实现全屏100%亮度的高水准。另一方面,高亮度和大尺寸屏幕使液晶电视在图像画质方面存在的问题变得更加明显,因此应当对它们... 详细信息

描述了大屏幕液晶电视图像画质的改善。在屏幕尺寸上已经超过C R T的液晶电视,即使屏幕尺寸达到60英寸,也可以实现全屏100%亮度的高水准。另一方面,高亮度和大尺寸屏幕使液晶电视在图像画质方面存在的问题变得更加明显,因此应当对它们加以解决。例如可见轮廓、动画模糊以及M PEG压缩引起的图像压缩失真及其补偿算法都将在本文中描述。

关键词：大屏幕液晶电视画质

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

Present Status of NIRS ECR Ion Sources

引用

Chinese Physics C 2007年第S1期31卷 60-62页

作者： M.Muramatsu A.Kitagawa y.Iwata K.yamamoto H.Ogawa S.Hojo y.Sakamoto T.Honma W.Takasugi M.Wakaisami y.yoshida T.Kubo y.Kato S.Biri A.G.Drentje Graduate school of Engineering Toyo UniversityJapan National Institute of Radiological Sciences4-9-1 AnagawaInageChiba 263-8555Japan National Institute of Radiological Sciences 4-9-1 AnagawaInageChiba 263-8555Japan Accelerator Engineering Corporation Ltd.2-13-I KonakadaiInageChiba 263-0043Japan Department of Mechanical Engineering Toyo University2100 KujiraiKawagoeSaitarna 350-0815Japan Osaka University 2-1 Yamada-okaSuitaOsaka 565-0871Japan Institute of Nuclear Research (ATOMKI) H-4026 DebrecenBen ter 18/cHungary National Institute of Radiological Sciences 4-9-1 AnagawaInageChiba 263-8555Japan K.V.I.University of GroningenZernikelaan 259747AA GroningenNetherlands

Four ECR ion sources have been operated in National Institute of Radiological Sciences(NIRS). Two ECR ion sources supply various ion species for the Heavy Ion Medical Accelerator in Chiba(HIMAC). The 10GHz NIRS-ECR ion source mainly produces C^(2+) ions for the heavy-ion *** of Si,Ar,Fe,Kr and Xe are usually produced by the 18GHz NIRS-HEC ion source for physical and biological *** other two compact ECR ion sources with all permanent magnet configuration have been developed for the new generation carbon therapy *** of these,the Kei-source,is a prototype which has been installed to the NIRS-930 cyclotron for axial *** other source,Kei2-source,is a demonstration source and utilized for the new generation *** addition,both Kei sources have been used to study fundamental properties. In this paper,present status of the ion sources and recent developments are reported.

关键词： heavy ion therapy ECR

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

搭建地震方法和大地测量方法所检测的慢地震之间的桥梁

引用

世界地震译丛 2009年第1期40卷 21-27页

作者： S．Ide K．Imanishi y.yoshida G．C．Beroza D．R．Shelly 陈婷（译）吕春来（校）许忠淮（复校）不详中国地震局地球物理研究所

最近观测到的异常地震事件——深部低频地震和颤动、甚低频地震及慢滑动事件——形成了慢震群,而这个慢震群受控于不同于普通地震的标定律。根据这个标定律,我们在日本西部的纪伊半岛下方观测到了之前未知的事件,其震源持续时间约20～20... 详细信息

最近观测到的异常地震事件——深部低频地震和颤动、甚低频地震及慢滑动事件——形成了慢震群,而这个慢震群受控于不同于普通地震的标定律。根据这个标定律,我们在日本西部的纪伊半岛下方观测到了之前未知的事件,其震源持续时间约20～200s,矩震级为3～4级。这些地震在2～8Hz的频带范围内辐射能量,直接与其地震矩率成比例,但这个比例常数比一般地震小4～5个数量级。这个地区的慢地震可能是由大量的剪切滑动事件组成的,从地震方法上看,总体上会呈现为颤动或长达200s持续时间的较长独立事件,从大地测量方法上看,是慢滑动事件。

关键词：测量方法地震方法慢地震大地地震事件桥梁检测持续时间

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

Analysis of deformation mechanisms in magnesium single crystals using a dedicated four-point bending tester

引用

Journal of Magnesium and Alloys 2024年第5期12卷 1911-1917页

作者： yutaka yoshida Rikuto Izawa Kenji Ohkubo Faculty of Engineering Kitami Institute of TechnologyKoen-choKitamiHokkaido 090-8507Japan Graduate student Department of Mechanical and Electrical EngineeringKitami Institute of TechnologyKoen-choKitamiHokkaido 090-8507Japan Center for Advanced Research of Materials Faculty of EngineeringHokkaido UniversityKita-kuSapproHokkaido 060-8628Japan Kyokuto Kaihatsu Kogyo Co. Ltd.AwajiChuohuOosakaOosaka 541-0047Japan

In this study,we explored the deformation mechanisms of Mg single crystals using a combination of scanning electron microscopy and electron backscattered diffraction in conjunction with a dedicated four-point bending *** prepared two single-crystal samples,oriented along theanddirections,to assess the mechanisms of deformation when the initial basal slip was *** thesample,the primary{1012}twin(T1)was confirmed along thedirection of the sample on the compression side with an increase in bending *** thesample,T1 and the secondary twin(T2)were confirmed to be along thedirection,with an orientation of±60°with respect to the bending stress direction,and their direction matched with(0001)in T1 and *** result implies that crystallographically,the basal slip occurs *** addition,thesample showed the double twin in T1 on the compression side and the tertiary twin along thedirection on the tension *** results demonstrated that the maximum bending stress and displacement changed significantly under the bend loading because the deformation mechanisms were different for these single ***,the correlation between bending behavior and twin orientation was determined,which would be helpful for optimizing the bending properties of Mg-based materials.

关键词： Four-point bending Magnesium single crystal Twinning Basal slip Scanning electron microscopy Electron backscatter diffraction

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

Deciphering the enigmatic spikelet traits:Resolving trade-offs for enhancing rice yield

引用

Molecular Plant 2024年第5期17卷 694-695页

作者： Hideki yoshida Makoto Matsuoka Institute of Fermentation Sciences Fukushima UniversityFukushima 960-1248Japan

Increasing the yield is one of the most important goals of crop *** the beginning of rice cultivation thousands of years ago,many efforts have been made to increase rice *** of the successes in this history was the Green *** tremendous improvement in the 1960s was achieved by increasing rice and wheat production through the development and widespread adoption of semi-dwarf varieties with the extensive use of fertilizers(Hedden,2003).Dwarfism in crops lowers the center of gravity of the plant body,reducing the risk of lodging and enabling farmers to use more fertilizer to increase ***-dwarf mutations in both rice and wheat created during the Green Revolution are related to the plant growth hormone gibberellin(GA).Although other mechanisms cause dwarf mutants,only GA-related semi-dwarf mutants were selected during the Green Revolution(Wang et al.,2021).While GA-related abnormalities only make plants shorter,most cases caused by other mechanisms involve not only dwarfism but also other morphological abnormalities.

关键词： dwarf crops traits

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

肺腺癌0.25 mm层厚和2048矩阵CT检查：预测侵袭性的高空间分辨力成像

引用

国际医学放射学杂志 2021年第1期44卷 109-109页

作者： M.yanagawa M.Tsubamoto y.Satoh A.Hata T.Miyata y.yoshida 李晨菲

摘要高空间分辨力(HSR)CT为肺的解剖和疾病的状态提供了详细的信息和清楚的影像。HSR CT可能对肺腺癌侵袭性的预测具有更高的诊断价值。目的探讨HSR CT对

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

Numerical Study of a Three-Dimensional Laminar Flow in a Rectangular Channel with a 180-Degree Sharp Turn

引用

Open Journal of Fluid Dynamics 2024年第3期14卷 147-162页

作者： Takashi yoshida Department of Mechanical Systems Engineering Shinshu University Nagano Japan

This study presents a numerical analysis of three-dimensional steady laminar flow in a rectangular channel with a 180-degree sharp turn. The Navier-Stokes equations are solved by using finite difference method for Re = 900. Three-dimensional streamlines and limiting streamlines on wall surface are used to analyze the three-dimensional flow characteristics. Topological theory is applied to limiting streamlines on inner walls of the channel and two-dimensional streamlines at several cross sections. It is also shown that the flow impinges on the end wall of turn and the secondary flow is induced by the curvature in the sharp turn.

关键词： 180-Degree Sharp Turn Channel Three Dimensional Steady Flow Limiting Streamline Topological Theory

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

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：