维普中文期刊产品整合服务
49篇 您的检索式:作者名="C.Chen"
    题名 作者 年代 出处 被引量
1An automated approach to calculating the maximum diameters of multiple cutters and their paths for sectional milling of centrifugal impellers on a 4_(1/2)-axis CNC machine显示文摘Power generators and chemical engineering compressors include heavy and large centrifugal impellers. To produce these impellers in high-speed machining, a 4?-axis milling machine(or a 4-axis machine plus an indexing table) is often used in the industry, which is more rigid than a5-axis milling machine. Since impeller blades are designed with complex B-spline surfaces and impeller channels spaces vary significantly, it is more efficient to use multiple cutters as large as possible to cut a channel in sections and a blade surface in patches, instead of only using a small cutter to machine a whole blade and a channel. Unfortunately, no approach has been established to automatically calculate the largest diameters of cutters and their paths, which include the indexing table angles. To address this problem, an automated and optimization approach is proposed. Based on the structure of a 4?-axis machine, a geometric model for a cutter gouging/interfering the impeller is formulated, and an optimization model of the cutter diameter in terms of the indexing table angle is established at a cutter contact(CC) point on a blade surface. Then, the diameters of the tools,their orientations, and the indexing table angles are optimized, and each tool's paths are generated for machining its corresponding impeller section. As a test, an impeller is efficiently machined with these tools section by section; thus, this approach is valid. It can be directly used in the industry to improve efficiency of machining centrifugal impellers.Baohai WU Zezhong C.CHEN Ming LUO Dinghua ZHANG Feiyan HAN 2019Chinese Journal of Aeronautics2019,32,4:5
2为什么要发展教育研究型卫生系统?显示文摘2012年11月,美国中华医学基金会(China Medical Board,CMB)联合复旦大学在上海共同主办了以加强中国教育研究型卫生系统(academichealthsystem,AHS)为主题的第四届西湖论坛。近200位学术界与政界领导出席了本届论坛,在其所提供的平台上,推出了强化和协调中国教育系统与卫生系统的概念基础和运作规则。Lincoln C.Chen 蒋茜(译) 2013中国循证医学杂志2013,13,5:2
3Safety and efficacy of two‐step peginterferon α‐2a treatment in patients of chronic hepatitis B with acute exacerbation显示文摘C.‐C.Chen P.‐C.Wang H.‐W.Chang C.‐F.Chen 2012Journal of Viral Hepatitis2012,,3:1
4Association of tightly locked occlusion with temporomandibular disorders显示文摘M.‐Q.WANG H.‐T.CAO F.‐R.LIU C.CHEN G.LI 2007Journal of Oral Rehabilitation2007,,3:1
5Viral hepatitis and proteinuria in an area endemic for hepatitis B and C infections: another chain of link?显示文摘J.‐F.HUANG W.‐L.CHUANG C.‐Y.DAI C.‐K.HO S.‐J.HWANG S.‐C.CHEN Z.‐Y.LIN L.‐Y.WANG W.‐Y.CHANG M.‐L.YU 2006Journal of Internal Medicine2006,,3:1
6Reactive wetting behaviors of Sn/Cu systems: A molecular dynamics study显示文摘Influences of temperature and Sn-Cu droplet's composition on reactive wettings of Cu(100), Cu(110), and Cu(111) surfaces were analyzed, by using molecular dynamics(MD) calculations. As a result, the spreading on Cu(110)(Cu(100)) has the fastest(slowest) wetting kinetics. A higher temperature or a diluter Cu content in the Sn-Cu alloy droplet results in a higher wettability. Moreover, this work has addressed a theory for positioning the interface separating the liquidus and solidus alloys in the spreading film to confirm the hypothesis that the reactive wetting will come to the end when the interface saturates with the temperature-dependent solidus weight fraction of Cu.J.Y.Hsieh J.L.Chen C.Chen H.C.Lin S.S.Yang C.C.Hwang 2010Nano-Micro Letters2010,2,2:1
7Gender differences in perceived work demands,family demands,and life stress among married Chinese employees显示文摘Jaepil Choi Chao C.Chen 0,,02:1
8Data Mining for Tunnel Support Stability:Neural Network Approach显示文摘Leu S C.Chen S.Chang 0,,04:1
9Economic burden of obesity‐related chronic diseases in Mainland China显示文摘W.Zhao Y.Zhai J.Hu J.Wang Z.Yang L.Kong C.Chen 2008Obesity Reviews2008,,:1
10A preliminary study of sonographic grading of fetal intracardiac echogenic foci: feasibility, reliability and association with aneuploidy显示文摘J. R.Wax D.Royer J.Mather C.Chen A.Aponte‐García J. D.Steinfeld C. J.Ingardia 2002Ultrasound Obstet Gynecol2002,,2:1
11Epidemiology of Bartonella Infection in Rodents and Shrews in Taiwan显示文摘J.‐W.Hsieh K.‐C.Tung W.‐C.Chen J.‐W.Lin L.‐J.Chien Y.‐M.Hsu H.‐C.Wang B. B.Chomel C.‐C.Chang 2010Zoonoses and Public Health2010,,6:1
12查看详情显示文摘C.Chen J.R.Cheng S.W.Yu L.J.Che and Z.Y.Meng 0,,01:1
13Investigation of seven Vibrio virulence genes among Vibrio alginolyticus and Vibrio parahaemolyticus strains from the coastal mariculture systems in Guangdong, China显示文摘Z.‐Y.Xie C.‐Q.Hu C.Chen L.‐P.Zhang C.‐H.Ren 2005Letters in Applied Microbiology2005,,2:1
14Customer satisfaction measurement with neural network显示文摘Yao-Hung Hsieh Chiuhsiang Joe Lin James C.Chen 0,,01:1
15Lower low‐density lipoprotein cholesterol levels are associated with Parkinson’s disease显示文摘XuemeiHuang HongleiChen William C.Miller Richard B.Mailman Jennifer L.Woodard Peter C.Chen DongXiang Richard W.Murrow Yi‐ZheWang CharlesPoole 2007Mov Disord2007,,3:1
16Presurgical intravenous parecoxib sodium and follow‐up oral valdecoxib for pain management after laparoscopic cholecystectomy surgery reduces opioid requirements and opioid‐related adverse effects显示文摘T. J.Gan G. P.Joshi S. Z.Zhao D. B.Hanna R. Y.Cheung C.Chen 2004Acta Anaesthesiologica Scandinavica2004,,9:1
17Changes in running economy following downhill running显示文摘TREVOR C.CHEN KAZUNORI NOSAKA JUIHUNG TU 0,,01:1
18Improved Intraportal Islet Transplantation Outcome by Systemic IKK‐beta Inhibition: NF‐κB Activity in Pancreatic Islets Depends on Oxygen Availability显示文摘C.Chen R.Moreno B.Samikannu R. G.Bretzel M. L.Schmitz T.Linn 2011American Journal of Transplantation2011,,:1
19Residents' perceptions of the impact of major annual tourism events in Macao:cluster analysis显示文摘Sandy C.Chen 0,,02:1
20The plasma glucose lowering action of tetrandrine in streptozotocin‐induced diabetic rats显示文摘W. C.Chen S.Hayakawa T.Yamamoto L. W.Huang J. T.Cheng I. M.Liu 2010Journal of Pharmacy and Pharmacology2010,,5:1
返回顶部 每页显示:
共3页 首页 上一页 第1页 下一页 末页 /3 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费