维普中文期刊产品整合服务
9篇 您的检索式:作者名="J.Oh"
    题名 作者 年代 出处 被引量
1Laser-direct-drive program: Promise, challenge, and path forward显示文摘Along with laser-indirect(X-ray)-drive and magnetic-drive target concepts,laser direct drive is a viable approach to achieving ignition and gain with inertial confinement fusion.In the United States,a national program has been established to demonstrate and understand the physics of laser direct drive.The program utilizes the Omega Laser Facility to conduct implosion and coupling physics at the nominally 30-kJ scale and lasereplasma interaction and coupling physics at the MJ scale at the National Ignition Facility.This article will discuss the motivation and challenges for laser direct drive and the broad-based program presently underway in the United States.E.M.Campbell V.N.Goncharov T.C.Sangster S.P.Regan P.B.Radha R.Betti J.F.Myatt D.H.Froula M.J.Rosenberg I.V.Igumenshchev W.Seka A.A.Solodov A.V.Maximov J.A.Marozas T.J.B.Collins D.Turnbull F.J.Marshall A.Shvydky J.P.Knauer R.L.McCrory A.B.Sefkow M.Hohenberger P.A.Michel T.Chapman L.Masse C.Goyon S.Ross J.W.Bates M. Karasik J.Oh J.Weaver A.J.Schmitt K.Obenschain S.P.Obenschain S.Reyes B.Van Wonterghem 2017Matter and Radiation at Extremes2017,2,2:10
2Prospective study of Centurion~? versus Infiniti~? phacoemulsification systems: surgical and visual outcomes显示文摘AIM: To evaluate surgical outcomes(SOs) and visual outcomes(VOs) in cataract surgery comparing the Centurion? phacoemulsification system(CPS) with the Infiniti? phacoemulsification system(IPS).METHODS: Prospective, consecutive study in a singlesite private practice. Totally 412 patients undergoing cataract surgery with either the CPS using the 30-degree balanced? tip(n=207) or the IPS using the 30-degree Kelman? tip(n=205). Intraoperative and postoperative outcomes were documented prospectively up to one month follow-up. Nuclear sclerosis(NS) grade, cumulated dissipated energy(CDE), preoperative corrected distance visual acuity(CDVA), and CDVA at one month were recorded. RESULTS: CDE was 13.50% less in the whole CPS compared with the whole IPS subcohort. In eyes with NS grade III or greater, CDE was 28.87% less with CPS(n=70) compared with IPS(n=44)(P=0.010). Surgical complications were not statistically different between the two subcohorts(P=0.083), but in the one case of vitreous loss using the CPS, CDVA of 6/4 was achieved at one month. The mean CDVAs(VOs) at one month for NS grade III and above cataracts were-0.17 log MAR(6/4.5) in the CPS and-0.15 log MAR(6/4.5) in the IPS subcohort respectively(P=0.033).CONCLUSION: CDE is 28.87% less, and VOs are significantly improved, in denser cataracts in the CPS compared with the IPS. The authors recommend the CPS for cases with denser nuclei.Lawrence J.Oh Chu Luan Nguyen Eugene Wong Samuel S.Y.Wang Ian C.Francis 2017International Journal of Ophthalmology(English edition)2017,10,11:3
3Numerical simulation on borehole breakout and borehole size effect using discrete element method显示文摘Estimation of horizontal stress magnitudes from borehole breakouts has been an attractive topic in the petroleum and mining industries,although there are critical research gaps that remain unfilled.In this paper,numerical simulation is conducted on Gosford sandstone to investigate the borehole breakout and its associated borehole size effect,including temperature influence.The discrete element method(DEM)model shows that the borehole breakout angular span is constant after the initial formation,whereas its depth propagates along the minimum horizontal stress direction.This indicates that the breakout angular span is a reliable parameter for horizontal stress estimation.The borehole size effect simulations illustrated the importance of borehole size on breakout geometries in which smaller borehole size leads to higher breakout initiation stress as well as the stress re-distribution from borehole wall outwards through micro-cracking.This implies that the stress may be averaged over a distance around the borehole and breakout initiation occurs at the borehole wall rather than some distance into the rock.In addition,the numerical simulation incorporated the thermal effect which is widely encountered in deep geothermal wells.Based on the results,the higher temperature led to lower breakout initiation stress with same borehole size,and more proportion of shear cracks was generated under higher temperature.This indicates that the temperature might contribute to the micro-fracturing mode and hence influences the horizontal stress estimation results from borehole breakout geometries.Numerical simulation showed that breakout shape and dimensions changed considerably under high stress and high temperature conditions,suggesting that the temperature may need to be considered for breakout stress analysis in deep locations.H.Lin W.H.Kang J.Oh I.Canbulat B.Hebblewhite 2020International Journal of Mining Science and Technology2020,30,5:2
4Factors affecting the quality of life in patients with epilepsy in Seoul, South Korea显示文摘S.Choi‐Kwon C.Chung H.Kim S.Lee S.Yoon H.Kho J.Oh S.Lee 2003Acta Neurologica Scandinavica2003,,6:1
5Sensitive detection and accurate monitoring of Plasmodium vivax parasites on routine complete blood count using automatic blood cell analyzer (DxH800TM)显示文摘H. K.LEE S. I.KIM H.CHAE M.KIM J.LIM E. J.OH Y.KIM Y. J.PARK W.LEE K.HAN 2012International Journal of Laboratory Hematology2012,,:1
6Prospective 12‐Month Study of Intrathecal Baclofen Therapy for Poststroke Spastic Upper and Lower Extremity Motor Control and Functional Improvement显示文摘Mya C.Schiess Irene J.Oh Erin F.Stimming JosephLucke FernandoAcosta StanleyFisher Richard K.Simpson 2011Neuromodulation: Technology at the Neural Interface2011,,1:1
7查看详情显示文摘J.S.Seo D.Whang H.Lee S.I.Jun J.Oh Y.J.Jeon and K.Kim 0,,6781:1
8Electrophysiological diagnostic criteria of Lambert–Eaton myasthenic syndrome显示文摘Shin J.Oh KatsumiKurokawa Gwen C.Claussen Hewitt F.Ryan 2005Muscle Nerve2005,,4:1
9韩国现代并联混合动力节油驾驶策略的研究显示文摘验证加速-滑行PnG驾驶策略在并联混合动力汽车上的节油效果。研究电动控制模式(电力电子元件全负荷工作)、机械控制模式(电力电子元件按需少量工作)和混合控制模式(电力电子元件部分负荷工作)等PnG驾驶策略。电动控制模式PnG驾驶策略中动力电池的充电与放电由保持恒定车速的需求功率决定。机械控制模式PnG驾驶策略中动力电池的使用率最小化、车辆的加速与减速由需求功率决定。混合控制模式PnG驾驶策略则综合了上述2种策略,并在两者之间找到平衡点。研究了在实现目标车速跟踪时燃油效率和车辆驾驶性之间的折中关系。为了评估上述驾驶策略的可行性,分类记录和分析了传动系统的能量损失,包括发动机热损失、发动机摩擦损失、电损失和阻力损失。其中,电损失指动力系统电子元件的全部电能损失,阻力损失指空气阻力和滚动阻力等行驶阻力所产生的能量损失。采用定量分析不同驾驶策略的各种损失和燃油效率。试验在1台装有汽油发动机、变速器集成电驱动模块和6速双离合变速器的实车上进行。J.S.EO S.J.KIM J.OH Y.K.CHUNG Y.J.CHANG 陈佳(译) 2019汽车与新动力2019,2,5:0
返回顶部 每页显示:
共1页 首页 上一页 第1页 下一页 末页 /1 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