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| 1 | MICROSTRUCTURE EVALUATION OF SEMI-SOLID STEEL MATERIALS IN ROLLING PROCESS AND THE RESULTING MECHANICAL PROPERTIES显示文摘The experimental study on the familiar 60Si2Mn and lCrl8Ni9Ti materials rolled in the semi-solid state was carried out. Experimental results show that the segregation of liquid occurs when the semi-solid slurry is rolled, which influences the microstructure and mechanics performance of workpiece under room temperature. The globular solid particles don’t present plastic deformation unless high solid fraction. At the same time, the mechanics property of workpiece is pretty good while the semi-solid slurry of 1Cr18Ni9Ti material is rolled by a pass and no other treatment. | R.B. Song, Y.L. Kang, J.L. Sun, A.M. Zhao and W.M. Mao School of Materials Science & Engineering, University of Science & Technology Beijing, Beijing 100083,China | 2001 | Acta Metallurgica Sinica(English Letters)2001，14，5： | 17 |
| 2 | TENSILE STRENGTH AND CREEP RESISTANCE OF Mg-9Al-1Zn BASED ALLOYS WITH CALCIUM ADDITION显示文摘Small amount of calcium addition to the Mg-9A1-0.8Zn-0.2Mn (AZ91) alloy resulted in the obvious influence on mechanical properties. The yield strength of the alloys increased with the increase of Ca addition and maximum strength was obtained from the alloy containing 0.15% of Ca. The creep resistance at the temperatures between 150-200℃ was also significantly increased with Ca addition. The creep rate (at 200℃, 50MPa) of the alloy with00.15% of Ca addition was one order of magnitude lower than that of the base alloy (AZ91). Microstructural observations revealed that the addition of calcium refined the microstructure and enhanced the thermal stability of the β precipitates, which accounted for the improvement of creep resistance at high temperatures. | Y.S. Sun, W.M. Zhang and X.G. Mm Department of Materials Science and Engineering, Southeast University, Nanjing 210096, China | 2001 | Acta Metallurgica Sinica(English Letters)2001，14，5： | 12 |
| 3 | THE APPARENT VISCOSITY OF SEMI-SOLID AZ91D ALLOY AT STEADY STATE显示文摘The Rheological behavior of semi-solid AZ91D at steady state is studied using a Couettetype viscometer in the present paper. The results show that the apparent viscosity ofsemi-solid AZ91D at the steady state increases with the solid fraction increasing, andgoes up sharply when the solid fraction reaches a certain value, which is called criticalfraction. In addition, the apparent viscosity of semi-solid AZ91D at the steady statetakes on a distinct downtrend with the shearing rate increasing, which indicates astrong shear thinning property. In addition, the critical solid fraction becomes higherunder larger shearing rate, owing to the more globular shape of the solid particles.Based on the present experiment results, an empirical equation is built as that, relatingthe steady state apparent viscosity of semi-solid AZ91D with the solid fraction fs andshearing rate γ at the same time: ηapp=10. 74exp(6.95fs)γ-0.86. | Z.S. Zhen, W.M. Mao, S.J. Van, A.M. Zhao, C.L. Cui and X.Y. ZhongSchool of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China | 2002 | Acta Metallurgica Sinica(English Letters)2002，15，6： | 10 |
| 4 | Climate Changes in the 21st Century over the Asia-Pacific Region Simulated by the NCAR CSM and PCM显示文摘The Climate System Model (CSM) and the Parallel Climate Model (PCM), two coupled global climate models without flux adjustments recently developed at NCAR, were used to simulate the 20th century climate using historical greenhouse gas and sulfate aerosol forcing. These simulations were extended through the 21st century under two newly developed scenarios, a business-as-usual case (BAU, CO2≈710 ppmv in 2100) and a CO2 stabilization case (STA550, CO2≈540 ppmv in 2100). The simulated changes in temperature, precipitation, and soil moisture over the Asia-Pacific region (10°-60°N, 55°-155°) are analyzed, with a focus on the East Asian summer monsoon rainfall and climate changes over the upper reaches of the Yangtze River. Under the BAU scenario, both the models produce surface warming of about 3-5℃ in winter and 2-3℃ in summer over most Asia. Under the STA550 scenario, the warming is reduced by 0.5-1.0℃ in winter and by 0.5℃ in summer. The warming is fairly uniform at the low latitudes and does not induce significant changes in the zonal mean Hadley circulation over the Asia-Pacific do- main While the regional precipitation changes from single CSM integrations are noisy, the PCM ensemble mean precipitation shows 10%-30% increases north of ~ 30°N and~10% decreases south of ~ 30°N over the Asia-Pacific region in winter and 10%-20% increases in summer precipitation over most of the region. Soil moisture changes are small over most Asia The CSM single simulation suggests a 30% increase in river runoff into the Three Gorges Dam, but the PCM ensemble simulations show small changes in the | Aiguo Dai, G.A. Meehl, W.M. Washington, and T.M.L. Wigley National Center for Atmospheric Research P.O. Box 3000, Boulder, CO 80307 ) Email: adai@ ucar. edu The National Center for Atmospheric Research is sponsored by the U S National Science Foundation. | 2001 | Advances in Atmospheric Sciences2001，18，5： | 9 |
| 5 | EFFECT OF GRAIN REFINING ON PRIMARYαPHASE IN SEMI-SOLID A356 ALLOY PREPARED BY LOW SUPERHEAT POURING AND SLIGHT ELECTROMAGNETIC STIRRING显示文摘A356 合金的半固体泥浆,由 Al-Ti-B 主人合金精制谷物,被准备由低过热流并且轻视电磁激动人心。谷物在生产的泥浆在形态学和主要α阶段的谷物尺寸上精制的效果被研究。结果显示有像粒子、像插座的主要α阶段的泥浆能被准备由低过热流并且轻视电磁从液体 A356 合金激动人心精制谷物,在哪个流的温度能合适被提起。与没有谷物精制的 A356 样品相比,主要α的谷物尺寸和粒子形态学象谷物的分发一样分阶段执行与沿着像粒子或像插座在在 A356 的铸块锭光线被谷物精制显著地改进。 | Z. Liu W.M. Mao Z.D. Zhao | 2008 | Acta Metallurgica Sinica(English Letters)2008，21，1： | 9 |
| 6 | Metabolomic Profiling in Selaginella lepidophylla at Various Hydration States Provides New Insights into the Mechanistic Basis of Desiccation Tolerance显示文摘Selaginella lepidophylla 是仅仅一些之一发展了干燥忍耐(DT ) 或从一个 air-dried 状态复兴的能力的尖铁苔藓(Selaginellaceae ) 的种类。以便理解 DT 的新陈代谢的基础, S。lepidophylla 受到一五阶段, rehydration/dehydration 周期,然后分析了使用基于 GC/MS 和 UHLC/MS/MS2 平台介绍技术的非偏导的、全球 metabolomics。包括 167 说出的 251 代谢物(66.5%) 的一个总数并且 84 (33.4%) 未命名的混合物被描绘。仅仅 42 (16.7%) 并且(29.5%) 74 混合物显示出显著地增加或减少的丰富分别地,显示大多数混合物组成地被生产包括高度丰富的 trehalose,蔗糖,和葡萄糖。几 glycolysis/gluconeogenesis 和 tricarboxylic 酸(TCA ) 周期中介在 100% 亲戚水内容(RWC ) 和 50% RWC 显示出增加的丰富。Vanillate,一种有势力抗氧化剂,也更充满含水的状态。许多不同的糖白酒和糖酸更充满含水的状态。这些 polyols 多半速度率在水和期间在弄干的过程以及慢水吸收期间浇损失,稳定蛋白质,并且清除反应的氧种类(ROS ) 。相反,充满氮并且 -glutamyl 氨基酸,瓜氨酸,和核苷酸分解代谢产品(例如 allantoin ) 更充满干燥状态,建议这些混合物可能在水和期间或在清除的 ROS 在氮动员起重要作用。紫外保护的混合物象 3-(3-hydroxyphenyl ) 那样 propionate, apigenin,和 naringenin,更充满干燥状态。大多数类脂化合物组成地被生产,与胆碱磷酸盐的例外,它更充满干燥状态并且多半在膜水和和稳定起一个作用。相反,几多元不堡和丰满的酸更充满含水的状态,建议这些混合物多半帮助在脱水期间维持膜流动性。最后, S。lepidophylla 包含了显示了双重或更大的丰富在的七未命名的混合物干燥或 rehydrating 状态,建议这些混合物可能在 DT 起适应作用。 | Abou Yobi Bernard W.M. Wone Wenxin Xu Danny C. Alexander Lining Guo John A. Ryals Melvin J. Oliver John C. Cushman | 2013 | Molecular Plant2013，6，2： | 9 |
| 7 | 记忆门诊的微出血患病率和严重程度研究显示文摘Objective: To determine prevalence and severity of microbleeds (MBs) in a large cohort of patients attending a memory clinic. Methods: The authors consecutively included patients attending their memory clinic between January 2002 and April 2005. They analyzed prevalence and number of MBs according to demographic, diagnostic, and MRI data. Results: The authors included 772 patients (53%men, age 66 ±11). One hundred twenty-seven patients (17%) exhibited at least one MB. The prevalence differed according to diagnostic groups (p < 0.0001): Sixty-five percent of patients with vascular dementia exhibited MBs vs 18%of Alzheimer disease patients, 20%of mild cognitive impairment patients, and 10%of patients with subjective complaints. The presence of MBs was associated with age, white matter hyperintensities, lacunar infarcts, and infarcts. Conclusion: The prevalence of microbleeds (MBs) in a large cohort of patients attending a memory clinic is higher than previously described in community samples and lower than reported in stroke patients. This finding of a relatively high proportion of MBs in Alzheimer disease and mild cognitive impairment provides further evidence for the involvement of vascular factors in neurodegenerative diseases such as Alzheimer disease. | Cordonnier C. Van Der Flier W.M. Sluimer J.D. P. Scheltens 王鹏 | 2006 | 世界核心医学期刊文摘(神经病学分册)2006，2，9： | 8 |
| 8 | Microstructures and mechanical properties of Ti3Al/Ni-based superalloy joints brazed with AuNi filler metal显示文摘For the purpose of high-temperature service and the weight reduction in aviation engineering applications, the dissimilar joining of Ti3Al-based alloy to Ni-based superalloy (GH536) was conducted using Au-17.5Ni (wt%) brazing filler metal. The microstructure and chemical composition at the interfaces were investigated by scanning electron microscope, X-ray diffraction and transmission electron microscope. The diffusion behaviors of elements were analyzed as well. The results indicated that the Ti3Al/GH536 joint microstructure was characterized by multiple layer structures. Element Ni from Au-Ni filler metal reacted with Ti3Al base metal, leading to the formation of AlNi2Ti and NiTi compounds. Element Ni from Ti3Al base metal reacted with Ni and thus Ni3Nb phase was detected in the joint central area. Due to the dissolution of Ni-based superalloy,(Ni,Au) solid solution ((Ni,Au)ss) and Ni-rich phase were visible adjacent to the superalloy side. The average tensile strength of all the joints brazed at 1253 K for 5-20 min was above 356 MPa at room-temperature. In particular, the joints brazed at 1253 K/15 min presented the maximum tensile strength of434 MPa at room-temperature, and the strength of 314 MPa was maintained at 923 K. AlNi2Ti compound resulted in the highest hardness area and the fracture of the samples subjected to the tensile test mainly occurred in this zone. | H.S. Ren H.P.Xiong W.M. Long B. Chen Y.X. Shen J. Pang | 2019 | Journal of Materials Science & Technology2019，35，9： | 7 |
| 9 | PREPARATION STUDY OF SEMI-SOLID 60Si2Mn SPRING STEEL SLURRY显示文摘The nondendritic semi-solid slurry preparation of 60Si2Mn spring steel is studied in this paper. The experiments show that when stirred for 2 minutes under the test condition, the semi-solid slurry with 50%-60% fraction solid phase and spherical primary austenite in the size of 100-300μm can be obtained and is easy to be discharged from the little bottom hole of the stirring chamber. The more homogeneous temperature field and solute distribution of the 60Si2Mn spring steel melt appear because of the electromagnetic stirring, which restrains the formation of large primary austenitic dendrites and create a base to form spheroidized structure. The stronger temperature fluctuation in the melt with many rosette primary austenites caused by stirring and the remelting of the secondary arm roots in the same time are the most important reasons for deposition of spheroidized primary austenites. | W.M. Mao, A.M. Zhao, D. Yun, L.P. Zhang and X.Y. ZhongUniversity of Science & Technology Beijing, Beijing 100083, China | 2003 | Acta Metallurgica Sinica(English Letters)2003，16，6： | 6 |
| 10 | 二分抑或三分——关于二叠纪地质年表显示文摘一、前言自从六十年代以来,由于齿菊石类化石在华南、苏联及伊朗各自的卓勒法地区、伊朗的阿巴德地区、日本北上山地、苏联远东地区及墨西哥考会拉地区的不断发现,致使在二叠系上部分出一个以含齿菊石类为特征的上统的意见日趋强烈。迄今,世界上尚未发现一条完整的。 | 周祖仁 B.F.格伦尼斯特 W.M.佛尼士 | 1989 | 古生物学报1989，28，3： | 5 |
| 11 | EFFECT OF IRON ON FORMATION OF MECHANICALLY ALLOYED NiAl ALLOY AND ITS MECHANICAL PROPERTIES显示文摘EFFECTOFIRONONFORMATIONOFMECHANICALLYALLOYEDNiAlALLOYANDITSMECHANICALPROPERTIESJ.T.Guo;L.Z.Zhou;Z.G.LiuandW.M.Yin(Institnteof... | J.T. Guo L.Z. Zhou Z.G. Liu and W.M. Yin(Institnte of Metal Research,Chinese Academy of Sciences,Shenyang 110015, China) | 1996 | Acta Metallurgica Sinica(English Letters)1996，9，6： | 3 |
| 12 | 对“青年马克思”争论的考察显示文摘1922年G.卢卡奇发表的《历史和阶级意识》和1923年K.科尔什发表的《马克思主义和哲学》,都是通过强调马克思著作的哲学方面而不是像过去半个多世纪以来把注意力集中在经济方面而发动了一次对马克思著作带有根本性的重新估价。他们一心想把马克思从他的追随者对他的所谓机械解释中解救出来。 | W.M.利奥格兰德 朱狄 | 1978 | 世界哲学1978，，5： | 3 |
| 13 | EFFECT OF TOOL WEAR ON MICROSTRUCTURE, MECHANICAL PROPERTIES AND ACOUSTIC EMISSION OF FRICTION STIR WELDED 6061 Al ALLOY显示文摘工具状况是在磨擦的主要担心之一促使焊接(FSW ) ,因为包括尺寸和形状的工具大头针的几何条件强烈被连接到微观结构和焊接的机械性能。工具穿发生在 FSW 期间,特别为与大量磨料焊接金属矩阵 composites,融化的粒子,和高度削尖材料,它显著地帮助工具穿并且败坏焊接的机械表演。当察觉到的声学的排放(AE ) , metallographic sectioning,并且张力的测试被采用在各种各样的工具中评估焊接质量时,有不同大头针穿层次的工具被用来焊接 6061 艾尔合金穿条件。结构的描述证明工具穿在金块地区为虚空的形成防碍焊接质量和报道。样品的张力的测试分析证实最终的张力的力量和收益力量被虚空的形成不利地由于工具在金块影响穿。失败地点清楚地在张力的测试期间取决于工具的状态穿,它导致了在金块和工具的结构之间的关系的分析穿。在焊接期间记录的 AE 签名表明 AE 点击与增加专注于更高的振幅工具穿。结果证明察觉到的 AE 为工具的联机监视提供一个潜在地有效的方法穿。 | W.M. Zeng H.L. Wu J. Zhang | 2006 | Acta Metallurgica Sinica(English Letters)2006，19，1： | 2 |
| 14 | Viral-Human Chimeric Transcript Predisposes Risk to Liver Cancer Development and Progression显示文摘 | Chi-Chiu Lau Tingting Sun Arthur K.K. Ching Mian He Jing-Woei Li Alissa M. Wong Ngai Na Co Anthony W.H. Chan Pik-Shan Li Raymond W.M. Lung Joanna H.M. Tong Paul B.S. Lai Henry L.Y. Chan Ka-Fai To Ting-Fung Chan Nathalie Wong | 2014 | Cancer Cell2014，，3： | 2 |
| 15 | Positive Caregiving Experiences Are Associated with Life Satisfaction in Spouses of Stroke Survivors显示文摘 | Willeke J. Kruithof Johanna M.A. Visser-Meily Marcel W.M. Post | 2012 | Journal of Stroke and Cerebrovascular Diseases2012，，8： | 2 |
| 16 | The battle against nasopharyngeal cancer显示文摘 | Anne W.M. Lee W.T. Ng Y.H. Chan Henry Sze Connie Chan T.H. Lam | 2012 | Radiotherapy and Oncology2012，，3： | 2 |
| 17 | PREPARATION OF SEMI-SOLID AISi7Mg ALLOY SLURRY显示文摘在这篇文章,半固体 AlSi7Mg 合金泥浆被准备由低过热流并且弱电磁激动人心。在 AlSi7Mg 合金泥浆的微观结构上倒温度和激动人心的力量的效果被学习。结果证明半固体 AlSi7Mg 合金泥浆,在直径的 127 公里,能被使用准备低过热流,弱电磁的激动人心的技术和这种新技术能节省精力并且使流的过程方便。当液体 AlSi7Mg 合金在 650 ° C 或 630 ° C 被倒时, AlSi7Mg 合金泥浆的团结的微观结构,准备了由弱电磁激动人心,当时,显著地被改进与没有,准备的泥浆的相比激动人心。主要 -Al 谷物显得像插座或球形。当流的温度被减少时,主要 -Al 谷物的形状逐渐地从象树枝状一样谷物改变了到球形的谷物。当流的温度适当地被增加时,也就是说涨了到某个 superheat,流的过程变得更容易并且 AlSi7Mg 合金泥浆的理想的球形的微观结构,准备了由弱电磁激动人心,能也被获得。在这个实验,当激动人心的力量是 0.36 kW 时,优化流的温度参数是 630 ° C。当 AlSi7Mg 合金泥浆被准备由时低过热流并且弱电磁激动人心,流的温度是 630 ° C。适当地增加激动人心的力量能获得更好球形的主要 -Al 谷物,但是如果激动人心的力量被增加到某个价值,主要 -Al 谷物的形状没进一步改善。在这个实验,优化激动人心的力量参数是 0.36 kW。 | Z.D. Zhao W.M. Mao | 2008 | Acta Metallurgica Sinica(English Letters)2008，21，2： | 2 |
| 18 | Factors Affecting Workpiece Surface Integrity in Slotting of CFRP显示文摘 | M.H. El-Hofy S.L. Soo D.K. Aspinwall W.M. Sim D. Pearson P. Harden | 2011 | Procedia Engineering2011，，： | 2 |
| 19 | TENSILE PROPERTIES AND CREEP RESISTANCE OF AZ91 ALLOY CONTAINING ANTIMONY显示文摘Small amount Of antimony addition to the Mg-9Al-0.8Zn-0.2Mn (AZ91) alloy resulted in the obvious increase of tensile strengths at both ambient and elevated temperatures.The creep resistance at the temperatures ap to 200℃ was also improved significantly by antimony addition. Mcrostructurul observations revealed that the addition of antimony modified morphology of the α(Mg17Al12) phase and caused the formation of some rod-shaped precipitates Mg3b2 at grain boundaries. These precipitates have high thermal stability and play an important role for strengthening groin boundaries at elevated temperutures. | Yuan, G.Y. Sun, Y.S. Zhang, W.M. Bao, Y.H. | 2000 | Acta Metallurgica Sinica(English Letters)2000，13，3： | 2 |
| 20 | 原位肝移植术后成功进行内镜下吻合口狭窄治疗:胆总管狭窄的复发率 | Alazmi W.M. Fogel E.L. Watkins J.L. G. Lehman 程妍 | 2006 | 世界核心医学期刊文摘(胃肠病学分册)2006，0，11： | 2 |
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