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| 1 | Effects of welding parameters and post-heat treatment on mechanical properties of friction stir welded AA2195-T8 Al-Li alloy显示文摘In this study, the effects of main welding parameters(rotation speed(ω) and welding speed(v)) on the microstructure, micro-hardness distribution and tensile properties of friction stir welded(FSW)2195-T8 Al-Li alloy were investigated. The effects of T6 post-treatments at different solution and aging conditions on the mechanical properties and microstructure characteristics of the FSW joints were also investigated. The results show that with increasing and v, both strength and elongation of the joints increase first, and then decrease with further increase of and v. All the joints under varied welding parameters show significant strength loss, and the strength reaches only 65% of the base metal. The effect of T6 post-heat treatment on the mechanical properties of the joints depends on the solution and aging conditions. Two heat treatment processes(480℃× 0.5 h quenching + 180℃× 12 h,520℃× 0.5 h quenching + 180℃× 12 h aging) are found to increase the joint strength. Furthermore,low temperature quenching(480℃) is more beneficial to the joint strength. The joint strength can reach 85% of the base metal. Whereas both low temperature aging(140℃× 56 h) and stepped aging(100℃× 12 h + 180℃× 3 h) processes decrease the joint strength. After heat treatment all the joints show decreased ductility due to the obvious grain coarsening in the nugget zone(NZ) and thermo-mechanically affected zone(TMAZ). | J. Zhang X.S. Feng J.S. Gao H. Huang Z.Q. Ma L.J. Guo | 2018 | Journal of Materials Science & Technology2018，34，1： | 16 |
| 2 | 双胎输血综合征选择性激光凝固绒毛膜血管吻合支成功后,晚期胎儿并发症的发生率及其处理显示文摘Objective: This study was undertaken to report on the prevalence and management of late complications in twin-to-twin transfusion syndrome (TTTS) treated by laser therapy when both twins are alive 1 week after surgery. Study design: A total of 151 consecutive TTTS cases were treated by selective fetoscopic laser therapy. Cases in which both twins were alive 1 week after surgery were followed up with ultrasound and Doppler examination, including middle-cerebral artery peak systolic velocity measurement (MCA-PSV). Results: In the 151 cases treated with laser, both twins were still alive 7 days after the procedure in 101 cases. Intrauterine death of 1 and both twins occurred in 7 and 1 cases, respectively. Recurrence of TTTS with the polyhydramnios-oligohydramnios sequence occurred in 14 (14% ) cases. In another 13 (13% ) cases,amniotic fluid remained normal in both sacs, but MCA- PSV increased above 1.5 MoM in 1 twin and decreased concomitantly below 0.8 MoM in the co-twin. This was related to anemia and polycythemia, respectively, and resulted from unidirectional feto-fetal blood transfusion, mainly from former recipients into former donors. Late complications were managed accordingly by repeat laser, amnioreduction, cord coagulation, intrauterine blood transfusion, or elective delivery. Conclusion: MCA-PSV Doppler measurements are useful in the follow-up of double survivors to detect and manage late complications after selective laser therapy. | Robyr R. Lewi L. Salomon L.J. Y. Ville 朱国栋 | 2006 | 世界核心医学期刊文摘(妇产科学分册)2006，0，8： | 12 |
| 3 | 美国应继续维护战略石油储备显示文摘美国石油工业研究基金会认为:战略石油储备是美国能源政策的一块基石。在今后世界石油市场将长期保持原油供应充足的情况下,为了维护美国的政治和经济安全,美国仍然应该继续维护战略石油储备。 一、战略石油储备的作用 1.维护能源安全的重要手段 随着美国经济的迅速发展,现在美国对于进口石油的依赖程度要远远高于建立战略石油储备之初的70年代中期。1975年美国进口石油占石油消费总量的36%,1997年为48%。 | L.J.戈德斯坦 李文 | 1998 | 国际石油经济1998，6，3： | 9 |
| 4 | 持续性胸痛预示无闭塞性冠状动脉疾病女性中的心血管事件:NIH-NHLBI发起的女性缺血综合征评价(WISE)研究的结果显示文摘Aims: Women with chest pain but without obstructive coronary artery disease(CAD) are considered at low risk for cardiovascular(CV) events, but half continue to experience debilitating chest pain over many years. This study compared CV outcomes in women with persistent chest pain(PChP) vs. those without PChP. Methods and results: We studied 673 Women’s Ischaemia Syndrome Evaluation(WISE) participants with chest pain undergoing coronary angiography for suspected myocardial ischaemia and at least 1 year of follow-up. PChP was defined as self-reported continuing chest pain after 1 year. Events occurring after that year were recorded for a median of 5.2 years. We compared CV event rates for women with and without PChP in subgroups with and without obstructive CAD. The median age was 58 years, 20%were racial minorities, 45%had PChP, 39%had obstructive CAD. Among women without CAD, those with PChP had more than twice the rate of composite CV events(P=0.03), that included non-fatal myocardial infarctions(P=0.11), strokes(P=0.03), congestive heart failure(P=0.38), and CV deaths(P=0.73), compared with those without PChP. In women with CAD, there was no difference in composite CV events in those with and without PChP(P=0.72). Conclusion: Among women undergoing coronary angiography for suspected myocardial ischaemia, PChP in women with no obstructive CAD predicted adverse CV outcomes. Such women might benefit from additional evaluation and aggressive risk factor modification therapy. | Johnson B.D. Shaw L.J. Pepine C.J. 郭俊 | 2006 | 世界核心医学期刊文摘(心脏病学分册)2006，，12： | 8 |
| 5 | INTERNAL OXIDATION KINETICS &DIFFUSION MECHANISM OF OXYGEN IN Cu-Al SINTERED ALLOY显示文摘INTERNALOXIDATIONKINETICS&DIFFUSIONMECHANISMOFOXYGENINCu-AlSINTEREDALLOY￥S.G.Tian;L.T.Zhang;H.M.Shao;L.J.Zou;T.F.Li;andH.C.Ya... | S.G. Tian L.T. Zhang H. M. Shao L.J. Zou T.F. Li and H. C. Yang (Department of Materials Science, Shenyang Polytechnic University, Shenyang 110023, China) (Corrosion Science Laboratory, Institute of Corrosion and Protection of Metals, Chinese Academy | 1996 | Acta Metallurgica Sinica(English Letters)1996，9，5： | 6 |
| 6 | PRECIPITATION BEHAVIOR OF M_(2)N IN A HIGH-NITROGEN AUSTENITIC STAINLESS STEEL DURING ISOTHERMAL AGING显示文摘The precipitation behavior of M2N and the microstructural evolution in a Cr-Mn austenitic stainless steel with a high nitrogen content of 0.43mass% during isothermal aging has been investigated using optical microscopy(OM),scanning electron microscopy(SEM),and transmission electron microscopy(TEM). The aging treatments have led to the decomposition of nitrogen supersaturated austenitic matrix through discontinuous cellular precipitation. The precipitated cells comprise alternate lamellae of M2N precipitate and austenitic matrix. This kind of precipitate morphology is similar to that of pearlite. However,owing to the non-eutectoidic mechanism of the reaction,the growth characteristic of the cellular precipitates is different from that of pearlite in Fe-C binary alloys. M2N precipitate in the cell possesses a hexagonal crystal structure with the parameters a = 0.4752nm and c = 0.4429nm,and the orientation relationship between the M2N precipitates and austenite determined from the SADP is [0110]M2N∥ [101] γ,[2110]M2N∥ [010] γ. | F. Shi L.J. Wang W.F. Cui C.M. Liu | 2007 | Acta Metallurgica Sinica(English Letters)2007，20，2： | 6 |
| 7 | Regional ozone pollution and observation-based approach for analyzing ozone–precursor relationship during the PRIDE-PRD2004 campaign显示文摘 | Y.H. Zhang H. Su L.J. Zhong Y.F. Cheng L.M. Zeng X.S. Wang Y.R. Xiang J.L. Wang D.F. Gao M. Shao S.J. Fan S.C. Liu | 2008 | Atmospheric Environment2008，，25： | 5 |
| 8 | 选择性5-羟色胺再吸收抑制剂与新生儿持续性肺动脉高压患病风险显示文摘Background: Persistent pulmonary hypertension of the newborn(PPHN) is associated with substantial infant mortality and morbidity. A previous cohort study suggested a possible association between maternal use of the selective serotonin- reuptake inhibitor(SSRI) fluoxetine late in the third trimester of pregnancy and the risk of PPHN in the infant. We performed a case- control study to assess whether PPHN is associated with exposure to SSRIs during late pregnancy. Methods: Between 1998 and 2003, we enrolled 377 women whose infants had PPHN and 836 matched control women and their infants. Maternal interviews were conducted by nurses, who were blinded to the study hypothesis, regarding medication use in pregnancy and potential confounders, including demographic variables and health history. Results: Fourteen infants with PPHN had been exposed to an SSRI after the completion of the 20th week of gestation, as compared with six control infants(adjusted odds ratio, 6.1; 95 percent confidence interval, 2.2 to 16.8). In contrast, neither the use of SSRIs before the 20th week of gestation nor the use of non- SSRI antidepressant drugs at any time during pregnancy was associated with an increased risk of PPHN. Conclusions: These data support an association between the maternal use of SSRIs in late pregnancy and PPHN in the offspring; further study of this association is warranted. These findings should be taken into account in decisions as to whether to continue the use of SSRIs during pregnancy. | Chambers C. D. Hernandez-Diaz S. Van Marter L.J. 任付先(译) 马超(校) | 2006 | 世界核心医学期刊文摘(心脏病学分册)2006，2，6： | 5 |
| 9 | 用聚合酶链反应和地高辛系统检测t(14;18)显示文摘目的探索聚合酶链反应(PCR)和地高辛系统检测 t(14;18)的特异性和敏感性。方法用该法检测了不同来源 DNA 标本中的 t(14;18)。结果 3株阳性对照细胞系、14例滤泡性非何杰金淋巴瘤(FNHL)中13例、4例弥漫性非何杰金淋巴瘤(DNHL)中2例的 DNA 内检出 bcl-2-JH 基因;阴性对照细胞系、正常人和其他肿瘤 DNA 中均未检出 t(14;18)。DNA 序列测定结果亦证实检出的阳性片段确实为 bcl-2-JH 基因。敏感性分析结果证实该法较单用 PCR 技术敏感1000~10000倍。结论 PCR 和地高辛系统确为敏感、特异、实用和对人体无害的检测 t(14;18)的方法。 | 唐恩洁 Hodges E. Smith L.J. | 1996 | 中华医学检验杂志1996，19，1： | 4 |
| 10 | The seismic response of fractures and the interrelations among fracture properties显示文摘 | L.J. Pyrak-Nolte | 1996 | International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts1996，，8： | 4 |
| 11 | 美国商业秘密法概述显示文摘一、什么是商业秘密?美国的商业秘密法的基本着眼点,不是为了解决知识和智力成果在社会发展和推广中的应用问题,它的基本目的是为了维持商业规矩的标准。在美国,有两个商业秘密的定义被广泛接受。一个公布在《侵权行为法重述》中(下称《重述》),另一个则见于《统一商业秘密法》。 | L.J.古泰 李文玉 肖志岳 | 1988 | 国外法学1988，，2： | 4 |
| 12 | 浸润性乳腺癌:使用高空间分辨率信号强化比成像预测疾病复发显示文摘目的分析乳腺癌病人术前MR影像,回顾性评价高空间分辨率信号强化比(SER)功能影像能否预测疾病复发。方法本回顾性研究经机构审查委员会同意及HIPAA法案允许,无需知情同意书。对1995--2002年间浸润性乳腺癌进行新辅助治疗的女性行钆增强MR成像检查,采用三时间点高分辨法采集数据。48例女性病人(年龄29.7~72.4岁,平均49.1岁)分为无复发组和复发组。根据SER值的设定范围,测量体积并列表,定义临界标准从而预测疾病术后是否复发。 | K.L. Li S.C. Partridge B.N. Joe J.E. Gibbs Y. Lu L.J. Esserman 秦乃姗(译) 唐光健(校) | 2008 | 国际医学放射学杂志2008，31，5： | 3 |
| 13 | HIGH-TEMPERATURE LOW-CYCLE FATIGUE BEHAVIOR OF NICKEL-BASED SUPERALLOY GH4049显示文摘1.IntroductionGH4049isawroughtnickelbasedsuperaloyinwhichγ′hasbeenidentifiedastheprimarystrengtheningphase.Sincethisaloyexh... | Chen, L.J. Yao, G. Wang, Z.G. Tian, J.F. | 1999 | Acta Metallurgica Sinica(English Letters)1999，12，1： | 3 |
| 14 | High Prevalence of Sessile Serrated Adenomas With BRAF Mutations: A Prospective Study of Patients Undergoing Colonoscopy显示文摘 | Kevin J. Spring Zhen Zhen Zhao Rozemary Karamatic Michael D. Walsh Vicki L.J. Whitehall Tanya Pike Lisa A. Simms Joanne Young Michael James Grant W. Montgomery Mark Appleyard David Hewett Kazutomo Togashi Jeremy R. Jass Barbara A. Leggett | 2006 | Gastroenterology2006，，5： | 3 |
| 15 | ON THE MONTE CARLO SIMULATION OF NORMAL GRAIN GROWTH显示文摘微观结构和他们正常谷物生长的动力学与相对数字和 n=0.5 的理论正常谷物生长代表一起用不同蒙特卡罗( MC ) algorithms.Compared 被模仿, MC 算法的一些因素的效果, i.e.the 格子类型,选择格子地点的方法,并且为精力计算的邻居选择,在模拟上,谷物生长的结果被学习。回归的二个方法被比较,并且三参数的非线性的回归对适合有适当因素的更好的模型包括了的谷物生长 kinetics.A 更合适三角形的格子,随机选择的尝试的地点,和为精力计算的第一和第二位最近的邻居被获得。 | Y.T. Liu X.J. Guan X.M. Shen X.F. Ma L.J. Wang | 2008 | Acta Metallurgica Sinica(English Letters)2008，21，4： | 3 |
| 16 | Rock burst and slabbing failure and its influence on TBM excavation at headrace tunnels in Jinping II hydropower station显示文摘 | Q.M. Gong L.J. Yin S.Y. Wu J. Zhao Y. Ting | 2011 | Engineering Geology2011，，： | 3 |
| 17 | What is Interactivity and is it Always Such a Good Thing? Implications of Definition, Person, and Situation for the Influence of Interactivity on Advertising Effectiveness显示文摘 | Yuping Liu L.J. Shrum | 2002 | Journal of Advertising2002，，： | 2 |
| 18 | 经肝动脉^90Y放射性栓塞治疗的新进展显示文摘放射性栓塞治疗(RE)是经过10余年探索而建立起来的一种治疗模式,发展迅速。该文对RE领域新进展进行综述,就RE患者选择、疗效判断以及将来的临床应用进行探讨。 | 李莉(译) 冯对平(译) 李思进(审校) Arthur J.A.T. Braat Maarten L.J. Smits Manon N.G.J.A. Braat Andor F. van den Hoven Jip F. Prince Hugo W.A.M. de Jong Maurice A.A.J. van den Bosch Marnix G.E.H. Lam | 2018 | 中华核医学与分子影像杂志2018，38，8： | 2 |
| 19 | In situ TiBw/Ti–6Al–4V composites with novel reinforcement architecture fabricated by reaction hot pressing显示文摘 | L.J. Huang L. Geng A.B. Li F.Y. Yang H.X. Peng | 2009 | Scripta Materialia2009，，11： | 2 |
| 20 | Use of indentation tests to study the influence of confining stress on rock fragmentation by a TBM cutter显示文摘 | L.J. Yin Q.M. Gong H.S. Ma J. Zhao X.B. Zhao | 2014 | International Journal of Rock Mechanics and Mining Sciences2014，，： | 2 |
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