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| 1 | 跨音速转子叶顶泄漏流/主流交界面的前移机制显示文摘采用数值计算和实验研究相结合的方法,研究了跨音速转子叶顶泄漏流与主流交界面轴向位置随流量的变化规律和机制。该跨音转子是美国圣母大学一级半跨音速压气机转子。研究发现机匣壁面脉线分布能够定性反映壁面轴向剪切应力分布,可用来识别叶顶泄漏流与主流的交界面位置。通过机匣壁面的脉线分布,可以看出机匣壁面存在两条零剪切应力线。第一条零剪切应力线表示来流与叶顶泄漏流之间交界面的时间和周向平均轴向位置,在小流量工况下交界面靠近顶部叶片的前缘。计算和实验结果都表明,随着质量流量的减小,叶顶泄漏流与主流交界面的轴向位置不断向叶片前缘移动。在近失速点,交界面到达叶片前缘,泄漏流即将溢出。泄漏流与主流的轴向动量比随流量减小不断增大的变化规律进一步说明,间隙区域泄漏流与主流的轴向动量平衡是导致交界面不断前移直至溢出的内在机制。 | 杜娟 林峰 陈静宜 Mark H Ross Joshua D Cameron Scott C Morris | 2011 | 工程热物理学报2011，32，6： | 3 |
| 2 | 腹腔镜、开腹和机器人手术切除直肠癌的肿瘤学和围手术期结果:一项多中心、倾向评分加权队列研究显示文摘目的:尽管进行了多个随机对照试验,但微创和传统开腹直肠癌手术的短期和长期结果仍不清楚。本研究的目的是比较腹腔镜、开腹和机器人直肠癌切除术的成功率和术后结果。方法:这是一项使用倾向评分加权的多中心、准实验队列研究。数据源于2016年'美国外科医生学院国家外科手术质量改善计划(NSQIP)'中所有年龄在18~89岁的接受开腹、腹腔镜或机器人直肠癌切除术的成年患者。主要结果是代表肿瘤切除术成功的复合指标,包括远端切缘阴性、环周切缘阴性、至少评估12枚淋巴结。次要结果是全身和手术部位的并发症,以及再入院、再手术、手术时间和住院时间。 | 孙凌宇 KETHMAN W C HARRIS A H S MORRIS A M | 2020 | 结直肠肛门外科2020，26，1： | 2 |
| 3 | 87Sr/86Sr,143Nd/144Nd and REEs in Silurian phosphatic fossils显示文摘 | Bertram C J Elderfield H Aldridge R J Conway Morris S | 1992 | Earth Planetary Science Letter1992，113，： | 2 |
| 4 | 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 | 2011 | World Journal of Radiology2011，3，4： | 2 |
| 5 | Effect of two opposing changes in photoperiod upon age at first egg and related traits in layer - hybrid pullets 显示文摘 | Lewis P D Perry G C Morris T R | 2003 | Journal of Agricultural Science Cambridge2003，140，： | 1 |
| 6 | Efficacy of ciprofloxacin in the treatment of chronic typhoid carriers显示文摘 | FERRECCIO C MORRIS J G V ALDIVIESO C | 1988 | J Infect Dis1988，157，3： | 1 |
| 7 | Laboratory-simulated acid-sulfate weathering of basaltic materials:implications for formation of sulfates at meridiani planum and gusev crater,mars显示文摘 | Golden D C Douglas Ming W Richard Morris V | 2005 | Journal of Geophysical Research E Planets2005，110，12： | 1 |
| 8 | Tracking student behavior, persistence and achievement in online courses显示文摘 | Morris L Finnegan C Wu S | 2005 | The Internet and Higher Education2005，8，： | 1 |
| 9 | Mierostructure and strength of Cu-Fe in situ composites after very high drawing strains 显示文摘 | Biselli C Morris D G | 1996 | Acta Mater1996，4，2： | 1 |
| 10 | The immunogenicity of single and combination DNA vaccines against tuberculosis显示文摘 | Morris S Kelley C Howard A | 2000 | Vaccine2000，18，20： | 1 |
| 11 | Mechanical stability of retained austenite in tempered 9Ni steel 显示文摘 | Syn C K Fultz B Morris J W | 1978 | Metallurgical Transactions A1978，9，11： | 1 |
| 12 | The need to know: Informal earers and information显示文摘 | Morris SM Thomas C | 2002 | Cancer2002，11，3： | 1 |
| 13 | Molecular cloning and expression of abscisic acid responsive genes in em- bryos of dormant wheat seeds 显示文摘 | Morris C F Anderberg R J Goldmark P J | 1991 | Plant Physiology1991，95，： | 1 |
| 14 | The CDR: current version and scoring rules 显示文摘 | Morris J C | 1993 | Neurology1993，43，： | 1 |
| 15 | The sodium iodide symporter: its pathophysiological and therapeutic implications显示文摘 | Spitzweg C Morris JC | 2002 | Clin Endocrinol (Oxf)2002，57，5： | 1 |
| 16 | Irish public perceptions and attitudes to modern biotechnology: an overview with a focus on GM foods 显示文摘 | Morris S H and Adley C C | 2001 | Trends in Biotechnology2001，19，2： | 1 |
| 17 | Adenosine attenuates reperfusion-induced apoptotic cell death by modulating expression of Bcl-2 and Bax proteins显示文摘 | Zhao ZQ Budde JM Morris C | 2001 | J Mol Cell Cardiol2001，33，1： | 1 |
| 18 | Adenosine attenuates reperfusion-induced apoptotic cell death by modulating expression of Bcl-2 and Baxproteins显示文摘 | Zhao Z Q Budde J M Morris C | 2001 | J Mol Cell Cardiol2001，33，1： | 1 |
| 19 | Inhibition of myocardial apoptosis reduces infarct size and improves regional contractile dysfunction during reperfusion 显示文摘 | Zhao Z Q Morris C D Budde J M | 2003 | Cardiovas Res2003，59，： | 1 |
| 20 | Determination of the brominated flame retardant, hexabromocyclodocane, in sediments and biota by liq- uid chromatography - electrospray ionisation mass spectrometry 显示文摘 | Morris S Bersuder P Allehin C | 2006 | Trends in Andytical Chemistry2006，25，4： | 1 |
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