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检索条件"作者=h.S."
21686 条 记 录,以下是1-10 订阅
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老龄化的全球经济挑战
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英语世界 2024年 第6期 10-14页
作者: h.s.博尔吉 薛洪君
人口老龄化带来的社会与经济影响在全球多个工业化国家正日渐显露。随着北美、西欧和日本等地人口老龄化速度空前加快,决策者们面临一些相互关联的问题,包括劳动年龄人口减少、医疗保健成本增加、养老金投入难以为继和经济内需拉动因...
来源: 同方期刊数据库 同方期刊数据库 评论
Microstructures and Mechanical Properties of Al/Mg Alloy Multilayered Composites Produced by Accumulative Roll Bonding
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Journal of Materials science & Technology 2011年 第1期27卷 15-21页
作者: h.s. Liu B. Zhang G.P. Zhang shenyang National Laboratory for Materials science Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 China Key Laboratory for Anisotropy and Texture of Materials of Ministry of Education School of Materials & Metallurgy Northeastern University Shenyang 110004 China
Al/Mg alloy multilayered composites were produced successfully at the lower temperature(280 C) by accumulative roll bonding(ARB) processing *** microstructures of Al and Mg alloy layers were characterized by scann... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Effect of Reactivity of Quick Lime on the Properties of hydrated Lime sorbent for sO_2 Removal
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Journal of Materials science & Technology 2009年 第3期25卷 329-332页
作者: h.G. shin h. Kim Y.N. Kim h.s. Lee Department of Materials science and Engineering Seoul National University Material Analysis Team Korea Testing Laboratory school of Materials science and Engineering Pusan National University
The hydration of quick lime and the sulfation of hydrated lime were carried out for verification of relationship between the reactivity of quick lime and the properties of hydrated lime as a sorbent. The effect of rea... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Variation among poplar clones for growth and crown traits under field conditions at two sites of North-western India
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Journal of Forestry Research 2013年 第1期24卷 61-67页
作者: G.P.s. Dhillon Avtar singh D.s. sidhu h.s. Brar Department of Forestry & Natural Resources Punjab Agricultural UniversityLudhiana 141 004India. Punjab Agriculture University Regional Research StationBathinda151 001 PunjabIndia.
We evaluated the growth and crown traits of 36 poplar clones at two distinct agro-climatic regions of Punjab (Ludhiana and Bathinda) in northwestern India, following randomized block design with three replications a... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
sTRENGThENING CAsT IRON MATRIX BY ALLOYINGELEMENTs WITh POsITIVE AND NEGATIVEsEGREGATION
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Acta Metallurgica sinica(English Letters) 1997年 第4期10卷 329-332页
作者: Fan, Z.K. Wang, Y.Q. Liang, s.h. huang, h.s. Xi'an Univ of Technology Xi'an China
The combinational use of alloying elements with positive and negative segregation h.s.been shown to be very effective in strengthening the matrix of cast iron. Negative segregation alloying elements, Cu and si, make t... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
size and shape effects on Curie temperature of ferromagnetic nanoparticles
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中国有色金属学会会刊:英文版 2007年 第6期17卷 1451-1455页
作者: 曹玲飞 谢丹 郭明星 h.s. Park T. Fujita school of Engineering University of Tokyo Bunkyo-ku Tokyo 113-8656 Japan Laboratory of Crystallography Department of MaterialsETH-ZürichCH-8093 Zürich Switzerland school of Materials science and Engineering Central South University
A simplified model was developed to describe the Curie temperature suppression of ferromagnetic nanoparticles. Based on a size and shape dependent model of coh.s.ve energy, the critical temperature variations of ferro... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
LAsER CLADDED TiCN COATINGs ON ThE sURFACE OF TITANIUM
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Acta Metallurgica sinica(English Letters) 2007年 第3期20卷 210-216页
作者: Y.L. Yang D. Zhang h.s. Kou C. s. Liu College of science Northeastern University Shenyang 110004 China College of Material and Metallurgy Northeastern University Shenyang 110004 China
Laser cladded coatings of TiCN were produced on the surface of titanium. To obtain the optimal techniques, several conditions were tested by varying the laser scanning rate. The choice of shielding gas was also studie... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Influence of Carrier Gas on Analysis of MgO Powders by Laser Ablation Inductively Coupled Plasma Mass spectrometry
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Journal of Materials science & Technology 2009年 第3期25卷 333-335页
作者: J.s. Lee Y.s. Lee C.J. Park h.s. Lee D.s. Lee Department of Chemistry Yonsei University Material Analysis Team Korea Testing Laboratory Korea Research Institute of standards and science school of Material science and Engineering Pusan National Univirsity
Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-Msh.s.been widely adopted for the direct multi-elemental analysis with high.s.nsitivity. Especially analysis of fine ceramics by LA-ICP-Ms withou... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
EFFECT OF COPPER ON ThE hOT PLAsTICITY OF 304hC sTAINLEss sTEEL
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Acta Metallurgica sinica(English Letters) 2005年 第5期18卷 674-678页
作者: G.Z. Cui h.s. Di G.D. Wang X. h. Liu state Key Laboratory of Rolling and Automation Northeastern University Shenyang 110004 China
The plasticity map of 304hC stainless steel was determined by using tensile and compressive test. The effect of Cu on the hot plasticity of 304hC stainless steel was analyzed. The microstructure, inclusion and fractur... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Microstructures and mechanical properties of Ti3Al/Ni-based superalloy joints brazed with AuNi filler metal
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Journal of Materials science & Technology 2019年 第9期35卷 2070-2078页
作者: h.s. Ren h.P.Xiong W.M. Long B. Chen Y.X. shen J. Pang Welding and Plastic Forming Division Beijing Institutes of Aeronautical MatericalBeijing 100095China state Key Laboratory of Advanced Brazing Filler Metals and Technology Zhengzhou Research Institute of Mechanical EngineeringZhengzhou 450001 China Department of Material science and Engineering Beihang UniversityBeijing 100191China
For the purpose of high-temperature service and the weight reduction in aviation engineering applications, the dissimilar joining of Ti3Al-based alloy to Ni-based superalloy (Gh536) was conducted using Au-17.5Ni (wt%)... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论