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274篇 您的检索式:作者名="C.R."
    题名 作者 年代 出处 被引量
1南美洲白对虾全人工授精技术研究显示文摘于1988年4月和1991年4月分别从厄瓜多尔和美国引进南美洲白对虾仔虾,经驯化、养成和室内人工越冬后,采用单侧眼柄切除手术人工催熟,以试管授精和人工植荚方法进行该种的繁殖技术试验。结果表明,(1)体长在13—16cm的南美洲白对虾雌虾,一般在摘眼后的1—2周内开始性腺发育;产卵量通常为3—10万粒;产卵后的雌虾卵巢可再次发育,最高产卵次数高达19次。(2)应用高频电针法取荚的成功率和取荚后雄虾的存活率均为100%;用上述方法取得的精荚内的精子无需“获能”即可使卵子受精。(3)假裂现象在南美洲白对虾的未受精卵中较为普遍。张伟权 于琳江 童保福 李光友 丁美丽 鲍鹰 何晋伟 王世震 C.R.阿诺尔特 张仕君 1993海洋与湖沼1993,24,4:28
2比较1.5T和3T全身MRI与FDGPET/CT对结直肠癌病人肿瘤复发的检出显示文摘本研究目的是比较FDGPET和1.5T或3T全身MRI(WB—MRI)对于诊断结直肠癌复发的准确性。回顾性分析24例结直肠癌可疑肿瘤复发病人,采用FDG PET/CT和并行采集的WB—MRI进行随访。行1.5Tm=14)或3T(n=10)WB—MRI检查,在4个身体平面(body levels)采用高分辨冠状T1W—TSE和STIR序列,肺部采用HASTE成像,肝脏、脑、腹部和盆部采用增强T1W-和T2W—TSE序列。作为参考标准.至少在5个月内应用影像学随访,G.P. Schmidt A. Baur-Melnyk A. Haug S. Utzschneider C.R. Becker R. Tiling 李鹏(译) 刘筠(校) 2009国际医学放射学杂志2009,32,4:10
3加拿大芬利森坝的拆除显示文摘按照计划的结构程序拆除大东河上的芬利森坝,这在加拿大尚属首次。其目标是恢复大东河的自然状态,以提高溪红点鲑渔业生产,但要保证淤积在水库中的泥沙得到控制。C.R.唐纳利 黎刚 2006水利水电快报2006,27,4:8
4Binary gas adsorption/desorption isotherms: effect of moisture and coal composition upon carbon dioxide selectivity over methane显示文摘C.R. Clarkson R.M. Bustin 2000International Journal of Coal Geology2000,,4:4
5Assessment of damage in mountain tunnels due to the Taiwan Chi-Chi Earthquake显示文摘W.L. Wang T.T. Wang J.J. Su C.H. Lin C.R. Seng T.H. Huang 2001Tunnelling and Underground Space Technology incorporating Trenchless Technology Research2001,,3:3
6郑芝龙(尼古拉·一官)兴衰记显示文摘岩生成一教授经过深入细致的研究,认定尼古拉.一官其人就是郑芝龙。一六二四年二月二十日雷耶尔森(CornelisReijersen)海军将领从佩斯卡多尔(即我国'澎湖列岛'一译者)的信记载了一名中国翻译乘“好望号”从日本来到这里,它写道:'我们接纳了从日本来的中国翻译,目前他对我们尚无用处,不过我们答应给他优厚薪金。”(英)C.R.博克塞 1984中国史研究动态1984,0,3:3
7Review of experimental techniques for high rate deformation and shock studies显示文摘J.E. Field S.M. Walley W.G. Proud H.T. Goldrein C.R. Siviour 2004International Journal of Impact Engineering2004,,7:3
8欧洲早期史料中有关明清海外华人的记载显示文摘近年已经发表了有关第一批来华欧洲人的大量文章。象裕尔、考尔迭、伯希和和伯纳徳等学者细致地向世人揭示了这方面的历史材料,使我们了解到了马可波罗、加斯帕尔·克罗兹和利玛窦等早期先行者的生平和成就。中国这方面的史料虽不是只字不提,但根本比不上西方记载那样丰富和准确;从《明史》等史籍中还是有些记载的。C.R.博客塞 杨品泉 1983中国史研究动态1983,0,2:3
9Development of Low Carbon Microalloyed High Strength Ultra-Thin Cast Strip Products Produced by the Castrip~ Process With Excellent Strength-Ductility Properties显示文摘The CASTRIP* process produces a range of high strength Ultra-thin Cast Strip (UCS) products (380-550 MPa) in thicknesses between 0.9 mm and 1.5 mm, which is very challenging to produce via conventional hot and cold rolled processing routes. The twin roll CASTRIP process fully exploits the hardenability and strengthening potential of Nb in a low C-Mn-Nb-V microalloyed steel type. Significant microstructural strengthening from solute Nb was obtained, even at low microalloying levels, as well as modest Mn additions, through enhancing the hardenability and further strengthening was obtained in coated products by exploiting age hardening during processing on a continuous hot dip galvanising line. Atom probe tomography and TEM determined that Nb was retained in solid solution and subsequent age hardening resulted from the formation of Nb and V rich nanosized particles. Age hardening was achieved without loss of ductility producing galvanised strip with an excellent strength-ductility combination (Y.S. >600 MPa, T.E. >10%).C.R. Killmore K.R. Carpenter H.R. Kaul D.G. Edelman J.M. Cairney S.P. Ringer J.G. Williams P.C. Campbell W.N. Blejde 2011Journal of Iron and Steel Research(International)2011,18,S1:3
10响应面分析法优化葡萄糖和酵母膏对巴西蘑菇菌丝体及胞外多糖生产的影响(英文)显示文摘通过响应面分析方法 ,就葡萄糖和酵母膏对巴西蘑菇菌丝体及胞外多糖生产的影响开展研究。结果表明 ,葡萄糖浓度 2 0~ 40g/L有利于菌丝体的合成 ,而酵母膏的浓度 2~ 4g/L对菌丝体的合成有负影响 ;葡萄糖的变化对胞外多糖产生的影响不明显 ,而酵母膏的浓度 2~ 4g/L有正面影响。表明碳氮源对巴西蘑菇菌丝体和胞外多糖合成的影响不一致。因此 ,菌丝体和胞外多糖合成有各自最佳的碳氮源浓度 。范雷法 潘慧娟 SOCCOLA.T. PANDEY A. SOCCOL C.R. 2004浙江农业学报2004,16,6:3
11Isolation of adenosine, iso-sinensetin and dimethylguanosine with antioxidant and HIV-1 protease inhibiting activities from fruiting bodies of Cordyceps militaris显示文摘Y. Jiang J.H. Wong M. Fu T.B. Ng Z.K. Liu C.R. Wang N. Li W.T. Qiao T.Y. Wen F. Liu 2010Phytomedicine2010,,2:2
12Properties and microstructure of lightweight aggregate produced from sintered sewage sludge ash显示文摘C.R. Cheeseman G.S. Virdi 2005Resources, Conservation & Recycling2005,,1:2
13妊娠早期异位妊娠的危险因素显示文摘Objective: To evaluate the association between ectopic pregnancy (EP) and clinical and historical factors among women presenting with pain and/or bleeding in early pregnancy. Design: Nested case-control study. Setting: University medical center. Patient(s): Women with symptomatic early pregnancies of unknown location presenting for care between January 1, 1990 and July 31, 1999. Intervention(s): None. Main Outcome Measure(s): Clinical and historical risk factors were compared between women with EP and women with ongoing intrauterine pregnancies or spontaneous abortions. Result(s): The following factors were associated with increased risk of EP: prior EP (odds ratio, 2.98 [95% confidence interval, 1.88- 4.73] for one prior EP and 16.04 [5.39- 47.72] for 2 or more), pelvic inflammatory disease history (1.5 [1.11- 2.05]), pain at presentation (1.42 [1.06- 1.92]),vaginal bleeding at presentation (1.42 [1.04- 1.93]), and hCG of 501- 2,000 mIU/mL (1.73 [1.24- 2.42]). Age younger than 25 years (0.59 [0.41- 0.85]) and a history of abortion were protective from EP (0.58 [0.38- 0.90]). Prior nontubal pelvic surgery, past intrauterine device use, prior cesarean section, and current cervical infection demonstrated no association with EP. Conclusion(s): Evaluation of women with a symptomatic early pregnancy confirms and refutes some of the classical risk factors for EP. Prior EP is a strong risk factor, whereas pelvic inflammatory disease has an unexpected weak association. Previous abortion was found to have a negative association, whereas nontubal surgery, cesarean section, and a history of or concomitant cervical infection have no association. Knowledge of historical and clinical factors associated with EP may aid in early diagnosis.Barnhart K.T. Sammel M.D. Gracia C.R. 朱晓明 2006世界核心医学期刊文摘(妇产科学分册)2006,0,11:2
14A fresh look at meat flavor显示文摘C.R. Calkins J.M. Hodgen 2007Meat Science2007,,1:2
15肝移植后神经精神并发症:免疫抑制和丙型肝炎的影响Tombazzi C.R. Waters B. Shokouh-Amiri M.H. 王晓君 2006世界核心医学期刊文摘(胃肠病学分册)2006,0,12:2
16Numerical simulation for the discharge behaviors of batteries in series and/or parallel-connected battery pack显示文摘Mao-Sung Wu Chang-Yen Lin Yung-Yun Wang Chi-Chao Wan C.R. Yang 2006Electrochimica Acta2006,,3:2
17Review on thermal energy storage with phase change materials and applications显示文摘Atul Sharma V.V. Tyagi C.R. Chen D. Buddhi 2007Renewable and Sustainable Energy Reviews2007,,2:2
18Two-dimensional analysis of stacked geosynthetic tubes on deformable foundations显示文摘R.H. Plaut C.R. Klusman 1999Thin-Walled Structures1999,,3:2
19教师如何才能让学生信任自己显示文摘重要的是沟通和行动营造一个成功的学习环境是非常关键的,这本身要求教师具备能够促进积极和开放的人际交往的品质。学生很看重自己被公平、有尊严和尊重地对待。针对青少年的一个特别的研究发现,在这个阶段。约翰·哈蒂 格雷戈里·C.R.耶茨 彭正梅(译) 邓莉(译) 伍绍杨(译) 2019人民教育2019,,20:2
20Removal of lead(II) from wastewater by activated carbon developed from Tamarind wood by zinc chloride activation显示文摘Jyotikusum Acharya J.N. Sahu C.R. Mohanty B.C. Meikap 2008Chemical Engineering Journal2008,,1:2
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