维普中文期刊产品整合服务
2956篇 您的检索式:作者名="STEPHENSON"
    题名 作者 年代 出处 被引量
1南海张裂过程及其对晚中生代以来东南亚构造的启示--IODP建议书735-Full介绍显示文摘南海的形成揭示了大陆边缘张裂和盆地形成的复杂模式,尽管已经进行了广泛研究,但是关于基底岩石和深海盆沉积层的精确年代数据还很缺乏,这使得对南海张裂年代的估计存在很大的误差,对张裂机制和历史的各种假设没有得到验证。同时只有对南海的张裂过程有了精确地分析与刻画,才能更好地理解西太平洋边缘海盆地的形成以及它们在印支块体受印度—欧亚板块碰撞而向东南挤出、青藏高原隆升中可能起到的作用。2009年正式提交的国际综合大洋钻探计划(IODP)建议书735-Full建议在南海深海盆内的4个站位上实施钻探。这4个站位分布在南海盆地4个不同的次级构造单元上(南海东北部、西北次海盆、东部次海盆和西南次海盆),这样的站位设计会确保完成本建议书的整体研究目标,即揭示南海的张裂历史和它对晚中生代以来东南亚构造的启示。位于南海盆地最东北部的站位有助于确定该区域地壳的属性和验证古南海是否存在,位于西北次海盆的站位可能会提供南海的最早张裂年代,另外2个分别位于东部次海盆和西南次海盆的站位将重点确定2个次海盆的绝对年龄、基底矿物成分与磁化率以及2个次海盆的相对张裂次序。这些站位的水深大约在2910~4400m,钻探深度预计到海底以下大约700~2200m,总的钻透深度为5959m,其中5359m穿透沉积层,另外600m或400m钻入基底。所有这些站位的位置是由已有的地球物理观测数据所确定,目前计划收集更多的地质与地球物理数据以满足IODP对井位调查数据的要求。李春峰 汪品先 Dieter Franke 李家彪 Randell Stephenson 许树坤 Peter Michael 周祖翼 翦知湣 李前裕 刘志飞 耿建华 木村学 阎贫 丘学林 王嘹亮 解习农 吴时国 吴能友 2009地球科学进展2009,24,12:20
2First dark matter search results from the PandaX-Ⅰ experiment显示文摘We report on the first dark-matter(DM)search results from PandaX-I,a low threshold dual-phase xenon experiment operating at the China JinPing Underground Laboratory.In the 37-kg liquid xenon target with 17.4 live-days of exposure,no DM particle candidate event was found.This result sets a stringent limit for low-mass DM particles and disfavors the interpretation of previously-reported positive experimental results.The minimum upper limit,3.7×10-44cm2,for the spin-independent isoscalar DM-particle-nucleon scattering cross section is obtained at a DM-particle mass of 49 GeV/c2at 90%confidence level.XIAO MengJiao XIAO Xiang ZHAO Li CAO XiGuang CHEN Xun CHEN YunHua CUI XiangYi FANG DeQing FU ChangBo GIBONI Karl L. GONG HaoWei GUO GuoDong HU Jie HUANG XingTao JI XiangDong JU YongLin LEI SiAo LI ShaoLi LIN Qing LIU HuaXuan LIU JiangLai LIU Xiang LORENZON Wolfgang MA YuGang MAO YaJun NI KaiXuan PUSHKIN Kirill REN XiangXiang SCHUBNELL Michael SHEN ManBing STEPHENSON Scott TAN AnDi TARL Greg WANG HongWei WANG JiMin WANG Meng WANG XuMing WANG Zhou WEI YueHuan WU ShiYong XIE PengWei YOU YingHui ZENG XiongHui ZHANG Hua ZHANG Tao ZHU ZhongHua 2014Science China(Physics,Mechanics & Astronomy)2014,57,11:10
3PandaX: a liquid xenon dark matter experiment at CJPL显示文摘PandaX is a large liquid-xenon detector experiment usable for direct dark-matter detection and 136Xe double-beta decay search.The central vessel was designed to accommodate a staged target volume increase from initially 120 kg(stage I)to 0.5 t(stage II)and eventually to a multi-ton scale.The experiment is located in the Jinping Deep-Underground Laboratory in Sichuan,China.The detector operates in dual-phase mode,allowing detection of both prompt scintillation,and ionization charge through proportional scintillation.In this paper a detailed description of the stage I detector design and performance as well as results established during the commissioning phase are presented.CAO XiGuang CHEN Xun CHEN YunHua CUI XiangYi FANG DeQing FU ChangBo GIBONI Karl L. GONG HaoWei GUO GuoDong HE Ming HU Jie HUANG XingTao JI XiangDong JU YongLin LI ShaoLi LIN Qing LIU HuaXuan LIU JiangLai LIU Xiang LORENZON Wolfgang MA YuGang MAO YaJun NI KaiXuan PUSHKIN Kirill REN XiangXiang SCHUBNELL Michael SHEN ManBing SHI YuJie STEPHENSON Scott TAN AnDi TARLé Greg WANG HongWei WANG JiMing WANG Meng WANG XuMing WANG Zhou WEI YueHuan WU ShiYong XIAO MengJiao XIAO Xiang XIE PengWei YE Tao YOU YingHui ZEN XiongHui ZHANG Hua ZHANG Tao ZHAO HaiYing ZHAO Li ZHOU XiaoPeng ZHU ZhongHua 2014Science China(Physics,Mechanics & Astronomy)2014,57,8:9
4重睑术显示文摘Michelle Stephenson 干季良 2005中华医学美学美容杂志2005,11,1:8
5Final anatomic and visual outcomes appear independent of duration of silicone oil intraocular tamponade in complex retinal detachment surgery显示文摘AIM: To report anatomic and visual outcomes following silicone oil removal in a cohort of patients with complex retinal detachment, to determine association between duration of tamponade and outcomes and to compare patients with oil removed and those with oil in situ in terms of demographic, surgical and visual factors. METHODS: We reported a four years retrospective case series of 143 patients with complex retinal detachments who underwent intraocular silicone oil tamponade. Analysis between anatomic and visual outcomes, baseline demographics, duration of tamponade and number of surgical procedures were carried out using Fisher's exact test and unpaired two-tailed t-test. RESULTS: One hundred and six patients(76.2%) had undergone silicone oil removal at the time of review with 96 patients(90.6%) showing retinal reattachment following oil removal. Duration of tamponade was not associated with final reattachment rate or with a deterioration in best corrected visual acuity(BCVA). Patients with oil removed had a significantly better baseline and final BCVA compared to those under oil tamponade(P=0.0001, <0.0001 respectively). CONCLUSION: Anatomic and visual outcomes in this cohort are in keeping with those reported in the literature. Favorable outcomes were seen with oil removal but duration of oil tamponade does not affect final attachment rate with modern surgical techniques and should be managed on a case by case basis.Maedbh Rhatigan Elizabeth Mc Elnea Patrick Murtagh Kirk Stephenson Elaine Harris Paul Connell David Keegan 2018International Journal of Ophthalmology(English edition)2018,11,1:7
6儿童房室结折返性心动过速患者经冷冻消融和射频消融的结果比较显示文摘目的 比较经导管冷冻消融和射频消融治疗儿童房室结折返性心动过速(AVNRT)的临床效果。方法 73例年龄在18岁以下,诊断为AVNRT的患者入选本研究,根据治疗方法分为冷冻消融组(冷冻组)和射频消融组(射频组),记录并分析比较两组的临床特点、冷冻标测次数、消融次数、X线曝光时间、消融术总时间、成功率、并发症发生率以及复发率。结果 共73例患者入选,冷冻组33例,男性16例,女性17例,平均年龄(12.4±2.8)岁;射频组40例,男性18例,女性22例,平均年龄(13.6±2.2)岁。冷冻组和射频组的消融次数分别为(2.7±1.7)次和(11±6.3)次(P〈0.001),X线曝光时间分别为(20±7)min和(25±9)min(P〈0.05),消融术总时间分别为(214±33)min和(164±36)min(P〈0.05),消融成功率88%(29/33)对100%(40/40)(P〈0.01),一过性房室阻滞的并发症发生率为12%对2.5%(P〈0.01)。冷冻组所有术中发生的传导阻滞均在5min内恢复。两组的复发率差异无统计学意义(6%与2.5%,P=NS)。结论 经导管冷冻消融治疗儿童AVNRT安全有效,但成功率低于射频消融,目前可作为后者的一种补充。高东升 Christine Chiu-man Joel Kirsh Elizabeth Stephenson Robert Hamilton 2007中华心律失常学杂志2007,11,1:3
7腹膜透析患儿便秘评估的最佳证据应用显示文摘目的评估目前与腹膜透析患儿便秘评估相关的偱证证据,将与腹膜透析患儿便秘评估有关的最佳证据应用于临床护理实践,提高腹膜透析患儿及家庭照顾者对便秘评估的依从性。方法我院于2017年7-11月将JBI临床证据实践应用系统和临床转化系统作为审查工具,基于现有的腹膜透析患儿便秘评估的最佳证据,制定6条审查标准。对14名护士、30例患儿及照顾者实施基线审查和证据应用后第2轮审查。通过问卷调查护士、患儿或家庭照顾者对便秘相关知识的了解情况。结果在基线审查中,6条标准执行率较差为0~57%,将最佳证据引入到护理实践后,第2轮审查时,第6条审查标准(患儿或者居家照顾者定期评估和记录患者的排便习惯))执行率达到了90%,其余5条审查标准执行率均为100%;护士对腹透便秘相关知识得分从6.4分提高到9.5分;患儿或照顾者便秘相关知识得分从5.0分提高到8.6分。结论基于循证的质量审查改善了腹膜透析患儿便秘评估的临床护理实践,可提高护士和患儿及照顾者对便秘评估的依从性。周清 王君俏 顾莺 Matthew Stephenson 沈霞 张慧 胡晓静 胡雁 2018护士进修杂志2018,33,24:3
8Microchimerism in recurrent miscarriage显示文摘在怀孕期间,在 microchimerism 的获得的结果,它经久地装在两个接受者坚持的母亲胎儿的房间交换。自然地获得的 microchimerism 可以在怀孕影响母亲胎儿的相互作用。我们进行了研究问一个女人从她的自己的母亲获得了的 microchimerism 是否是可检测的在前或在在有周期性的流产的女人的怀孕期间。胎儿的 microchimerism 也是 assayed。有主要自发的周期性的流产的女人(n= 23 ) 并且控制(n= 31 ) 被学习。Genotyping 为 probands,他们的母亲和胎儿,被进行识别的非分享的多型性和量的聚合酶链反应表现了测量 microchimerismin 外设血 mononuclear 房间。预想比较在周期性的流产题目和控制之间被做,用逻辑回归和 Wilcoxon 等级和。在周期性的流产题目的随后的怀孕的纵的 microchimerism 被描述。向在周期性的流产对控制的 microchimerism 的更低的预想察觉有一个趋势, 6 %对 19 %(1/16 对 6/31, P= 0.2 ) 。在怀孕期间, 3/11 (27 %) 继续了有的周期性的流产题目,出生从他们的自己的母亲有 microchimerism 的察觉,而任何一个继续了流产的二个题目都没有察觉(0/2 ) 。这个起始的数据当可检测时,与周期性的流产在女人从一个女人的自己的母亲建议那 microchimerism,可以不同于控制并且根据随后的怀孕结果。进一步的研究被需要在周期性的流产决定房间类型,数量和 microchimerism 的任何潜在的功能的角色。Hilary S Gammill Mary D Stephenson Tessa M Aydelotte J Lee Nelson 2014Cellular & Molecular Immunology2014,11,6:2
9Histological outcome during long-term lamivudine therapy显示文摘Jules L. Dienstag Robert D. Goldin E.Jenny Heathcote H.W.L. Hann Mary Woessner Sally L. Stephenson Stephen Gardner D.Fraser Gray Eugene R. Schiff 2003Gastroenterology2003,,:2
10在 7T 的多原子的磁性的回声光谱学的应用显示文摘 AIM: To discuss the advantages of ultra-high field (7T) for 1H and 13C magnetic resonance spectroscopy (MRS) studies of metabolism.made at both 3 and 7T using 1H MRS. Measurements of glycogen and lipids in muscle were measured using 13C and 1H MRS respectively. RESULTS: In the brain, increased signal-to-noise ratio (SNR) and dispersion allows spectral separation of the amino-acids glutamate, glutamine and γ-aminobutyric acid (GABA), without the need for sophisticated editing sequences. Improved quantification of these me-tabolites is demonstrated at 7T relative to 3T. SNR was 36% higher, and measurement repeatability (% coefficients of variation) was 4%, 10% and 10% at 7T, vs 8%, 29% and 21% at 3T for glutamate, glutamine and GABA respectively. Measurements at 7T were used to compare metabolite levels in the anterior cingulate cortex (ACC) and insula. Creatine and glutamate levels were found to be significantly higher in the insula compared to the ACC (P < 0.05). In muscle, the increased SNR and spectral resolution at 7T enables interleaved studies of glycogen (13C) and intra-myocellular lipid (IMCL) and extra-myocellular lipid (EMCL) (1H) following exercise and refeeding. Glycogen levels were sig-nificantly decreased following exercise (-28% at 50% VO2 max; -58% at 75% VO2 max). Interestingly, levels of glycogen in the hamstrings followed those in the quadriceps, despite reduce exercise loading. No changes in IMCL and EMCL were found in the study. CONCLUSION: The demonstrated improvements in brain and muscle MRS measurements at 7T will increase the potential for use in investigating human metabolism and changes due to pathologies.Mary C Stephenson Frances Gunner Antonio Napolitano Paul L Greenhaff Ian A MacDonald Nadeem Saeed William Vennart Susan T Francis Peter G Morris 2011World Journal of Radiology2011,3,4:2
11Properties of diamond tool binders with fine carbonyl Ni powder additions显示文摘Fine Ni powder is often added to Co and bronze-based metal binder powders for diamond tool segments.Ni is a lower cost substitute for extra-fine Co powder and increases the toughness of Co-Fe diamond binders at the expense of lower hardness and bend strength.In bronze-based diamond binder segments,Ni increases hardness and yield strength.Several grades of Ni powder are used commercially with both Co and bronze-based diamond binders.This paper compares properties of diamond binders containing carbonyl Ni powders including standard Inco(?) T255,T123 PM and T 110 PM.Binder materials were made by ball milling or dry mixing of the fine carbonyl Ni and Fe powders with either XF Co or air atomized bronze(90/10 Cu/Sn) powders.Co-based powder blends were hot pressed at 20~35 MPa and 700℃to 900℃.Bronze-based powder blends were cold pressed and sintered at 840℃.Apparent density,apparent hardness and bend strength(TRS) were compared for different binder compositions and processing conditions.Stephenson T F Korotkin M Metcalfe S 2008金刚石与磨料磨具工程2008,28,S1:2
12Advances in Modeling and Simulation of Grinding Processes显示文摘E. Brinksmeier J.C. Aurich E. Govekar C. Heinzel H.-W. Hoffmeister F. Klocke J. Peters R. Rentsch D.J. Stephenson E. Uhlmann K. Weinert M. Wittmann 2006CIRP Annals - Manufacturing Technology2006,,2:2
13The small footprint wastewater treatment process 显示文摘Stephenson Tom Allan Man Upton John 1993Chemistry & Industry1993,19,:2
14Paediatric retinal detachment:aetiology,characteristics and outcomes显示文摘AIM: To provide contemporary data on the aetiology, clinical features and outcomes of paediatric retinal detachment.METHODS: A retrospective review of all those under 16 y who underwent surgical repair for retinal detachment at a single centre between the years 2008 and 2015 inclusive was performed. In each case the cause of retinal detachment, the type of detachment, the presence or absence of macular involvement, the number and form of reparative surgeries undertaken, and the surgical outcome achieved was recorded.RESULTS: Twenty-eight eyes of 24 patients, 15(62.5%) of whom were male and 9(37.5%) of whom were female, their mean age being 11.6 y and range 2-16y developed retinal detachment over the eight year period studied. Trauma featured in the development of retinal detachment in 14(50.0%) cases. Retinal detachment was associated with other ocular and/or systemic conditions in 11(39.3%) cases. A mean of 3.0 procedures with a range of 1-9 procedures per patient were undertaken in the management of retinal detachment. Complex vitrectomy combined with scleral buckling or complex vitrectomy alone were those most frequently performed. Mean postoperative visual acuity was 1.2 log MAR with range 0.0-3.0 log MAR. In 22 of 26(84.6%) cases which underwent surgical repair the retina was attached at last follow-up.CONCLUSION: Aggressive management of paediatric retinal detachment including re-operation increases the likelihood of anatomical success. In cases where the retinal detachment can be repaired by an external approach alone there is a more favourable visual outcome.Elizabeth McElnea Kirk Stephenson Sarah Gilmore Michael O'Keefe David Keegan 2018International Journal of Ophthalmology(English edition)2018,11,2:2
15Barrett’s oesophagus: Intestinal metaplasia is not essential for cancer risk显示文摘Clive J. Kelty Martin D. Gough Quintin Van Wyk Timothy J. Stephenson Roger Ackroyd 2007Scandinavian Journal of Gastroenterology2007,,11:2
16Technique of factor analysis 显示文摘Stephenson W 1935Nature1935,136,:1
17Endoseopie Management of Fibroe Pithelial Ployps in the Ureter 显示文摘Sharma NK Stephenson RN Tolley DA 1996Br J Urol1996,78,:1
18Non-surgical management of live ectopic pregnancy with ultrasound-guided local injection :a case series显示文摘Monteagudo A Minior VK Stephenson C 2005Ultrasound Obstet Gynecol2005,25,3:1
19Efficacy of atrial antitachycardia pacing using the Medtronic AT500 pacemaker in patients with congenital heart disease显示文摘 Casavant D Tuzi J 2003Am J Cardiol2003,92,:1
20Postoperative nomogram predicting the 10-year probability of prostate cancer recurrence after radical prostatectomy显示文摘Stephenson AJ Scardino PT Eastham JA 2005J Clin Oncol2005,23,28:1
返回顶部 每页显示:
共148页 首页 上一页 第1页 下一页 末页 /148 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