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| 1 | Mesenchymal stem cells over-expressing hepatocyte growth factor improve small-for-size liver grafts regeneration显示文摘 | Yu, Y. Yao, A. H. Chen, N. Pu, L. Y. Fan, Y. Lv, L. Sun, B. C. Li, G. Q. Wang, X. H. | 2007 | 南京医科大学学报(自然科学版)2007，27，10： | 45 |
| 2 | COMPUTERIZED SIMULATION AND EXPERIMENTAL RESEARCH ON SOFT-SWITCHING ARC WELDING INVERTER POWER SOURCE显示文摘Based on the existing component models in the Pspice software package, a combined model for Insulat- ed the Bipolar Transistor (IGBT) is established, in which a non - linear is introduced to represent the parasitic capacitance. Using this model, computerized simulation is conducted for the FB - ZVZCS - PWM soft - ewitching converter,the switching and energy-transferring characteristics of the components are analyzed.The simulation results are testified by experiments.It is proved that by abopting appropriate models,computerized simulation becomes an effective tool for investigation of arc welding inverter power source. | S. J. Chen S. Y. Yin L. Feng and L. Y. Li( 1) School of Materials Science and Engineering, Beijing Polytechnic University, Beijing 100022, China 2)National Key Laboratory of Advanced Welding Production Technology, HIT, Harbin 150001, China) | 2000 | Acta Metallurgica Sinica(English Letters)2000，13，1： | 24 |
| 3 | Geochemistry,Nd Isotopic Characteristics of Metamorphic Complexes in Northern Hebei:Implications for Crustal Accretion显示文摘北方中国古地台(NCC ) 的北边缘的中间的片断在 Damiao-Changshaoying 区域主要由变形太古代的 Dantazi 建筑群, Paleoproterozoic Hongqiyingzi 复杂 andunmetamorphosed gabbro-anorthosite-meta-alkaline 花岗石,以及变形迟了的 Paleozoicmafic 组成到 granitoid 岩石。~ 2 .49 Ga Dantazi 复杂 comprisesdioritic-trondhjemitic-granodoritic-monzogranitic 片麻岩在角闪岩变形了到 granulitefacies。石油化学的特征表明大多数岩石属于媒介--tohigh钾计算碱的系列,和显示Mg~#不到 40 ,衰退权利的 REE 模式没有到在使primitivemantle正常化的蜘蛛图的显然积极的 Eu 异例,显然否定的 Th , Nb , Ta 和 Ti 异例,到-0.03,和弄空的披风的ε_( Nd )(t) =+0.65 为agesT_( DM ) =2.78-2.71 Ga 建模。在岩石成因论的学习显示岩石从从在一个大陆人边缘背景的再循环的外壳的 mafic 岩石的部分融化从弄空的披风和 granitoid 岩浆在 mafic 岩浆之间混合的 magmatic 被形成。2.44-2.41 Ga Hongqiyingzi 建筑群被变形 mafic-granodioritic-monzogranitic 片麻岩统治,显示到 Dantazi 建筑群的类似的石油化学的特征,对高钾也就是中等计算碱的系列,和 mafic 岩石在 LILE,否定 Th, Nb, Ta, Zr 异例和积极 Panomalies 显示出明显的变化。并且另外的 granitiod 样品也展出否定 Th, Nb, Ta, P 和 Ti 异例。在 Hongqiyingzi 复杂表演的 Allrocks 没有 Eu 的衰退权利的 REE 模式异例。有ε _(Nd ) 的 Themetamorphic mafic 岩石(t)=-1.64 不能是有 granitoids 的一个相同 magmatic 系列有(t)+3.19 珍视到 +1.94 和 2.55-2.52 Ga 的 T_(DM ) 年龄的ε _(Nd ) 。Thesegranitic 岩石从在一个弧形列岛的外壳的 mafic 岩石设置的少年的部分融化从弄空的披风和岩浆从在 mafic 岩浆之间的混血儿发源。 11 妈 LatePaleozoic 变形 mafic 摇的所有 ~3 和相关花岗石的岩石显示出一个中等钾的 calc-alkalinemagmatic 进化系列,由高Mg~#,显然否定的 Th , Nb , Ta 异例和positive 描绘了 Sr 异例,从不到有ε_( Nd )的强烈否定的 Ti 异例和扁平的 REE 模式(t)= +8.42 ,暗示 mafic 岩浆从弄空的披风被导出。另外的花岗石的岩石不管多么被衰退权利的 REE 模式显然描绘没有到 positiveEu 异例,显著地低的ε_( Nd )(t)= -13.37 到-14.04,和T_( DM ) =1.97-1.96 Ga ,表明 granitoid 岩浆从在来自 ~3 的 mafic 岩浆之间的混血儿被导出 11 Madepleted 披风和 granitoid 岩浆从对早 Paleoproterozoic 太古代古老的外壳的再循环。象上述地质的 andgeochronological 结果一样的地球化学和 Nd 同位素的特征显示 NCC 的北边缘的中间的片断主要经历了四个外壳的生长事件从对太古代晚古生代,它被三个大陆人统治边缘的弧生长( ~2 .49 , ~2 .44 和 311 妈)除了与 post-collisional 扩展有关的 1.76-1.68 Gaepisode ,表明这的外壳的生长分割主要从弧生长和合并被产生到 NCC 大陆块。 | LIU Shuwen TIAN Wei Lü Yongjun LI Qiugen FENG Yonggang K. H. PARK Y. S. SONG | 2006 | Acta Geologica Sinica(English Edition)2006，80，6： | 21 |
| 4 | Shifts of the Kuroshio axis over the last 20 000 years显示文摘Core 255 from the southern Okinawa Trough was selected to monitor the shift of the Kuroshio axis over the last 20 000 years. During the last glacial maximum the Kuroshio axis had ever shifted outside the Okinawa Trough. It entered the Okinawa Trough again at about 6 500 a BP, leading to abrupt increase of sedimentation rate, distinctly coarser sediment and remarkably increased abundance of foraminiferal indicators of the Kuroshio in the core. But, during about 4 000-3 000 a BP the abundance of the Kuroshio indicator Pulleniatina obliquiloculata sharply decreased again, indicating that the Kuroshio axis had ever shifted easterly for a short period or the Kuroshio was weakened and that moment. | Jian Zhimin Y. Saito Wang Pinxian Li Baohua Chen Ronghua | 1998 | Chinese Science Bulletin1998，43，12： | 20 |
| 5 | EFFECT OF CHEMICAL COMPOSITION ON RETAINED AUSTENITE IN TRIP STEEL显示文摘The systematic chemical compositions including common C, Si, Mn, Al, and micro- alloying elements of Ti and Nb were designed for high volume fraction of retained austenite as much as possible. The thermo-cycle experiments were conducted by using Gleeble 2000 thermo-dynamic test machine for finding the appropriate composition. The experimental results showed that chemical composition had a significant effect on retained austenite, and the appropriate compositions were determined for commercial production of TRIP steels. | Y. Chen and X. ChenWuhan University of Science and Technology, Wuhan 430081, ChinaQ.F. Wang, G.L. Yuan and. C. Y. LiTechnical Center of Wuhan Iron and Steel Co., Wuhan 430080, ChinaX. Y. Li and Y.X. WangCentral Iron and Steel Research Institute, Beijing 1 | 2002 | Acta Metallurgica Sinica(English Letters)2002，15，4： | 19 |
| 6 | GIS-based risk analysis of debris flow:an application in Sichuan,southwest China显示文摘Debris flow is a serious geologic hazard in China.It is estimated that nationally debris flows cause up to 2 billion RMB(250 million US$) in damages and 300-600 deaths and injuries annually.To mitigate debris flow hazards,it is necessary to map,model,and identify zones of debris flow hazards and vulnerability as to inform the local people about the potential risk with a geographic information system.This research presents a regional scale case study modeling debris flow risk(hazard and vulnerability) in Sichuan Province,Southwestern China.In this area,3,290 debris flows have been identified and the spatial-temporal distribution and activity characteristics of them have been documented.Based on the available meteorological data,a Digital Elevation Model with the rate of 1:250,000 and a regional geological map,the 24-hr rainfall threshold(y) for debris flow occurrence is closely related(significant at 99% confidence level) to the index(x) defined using a geology factor(rock hardness:a) and a topographical factor(channel gradient:d) where y = 21 + 10200 / x,in which x = 2.7 × ea + 1000 × d.The discipline is constructive in developing the rainfall threshold for debris flow activity in remote mountainous areas that lack data.For a given watershed,a four-level debris flow hazard map is developed by comparing the rainfall threshold to the design rainfall intensities with 50-,20-,and 5-year average recurrence intervals,respectively.The degree of debris flow vulnerability is determined by the watershed socio-economic conditions.A four-class debris flow risk map,at the final phase of the research,is generated by combining debris flow hazards and vulnerability.With the debris flow risk assessment,the Sichuan Province is classified into the slight,moderate,severe and very severe regions,which accounts for 36%,19%,20% and 25% of total area respectively. | B. F. DI N. S. CHEN P. CUI Z. L. LI Y. P. HE Y. C. GAO | 2008 | International Journal of Sediment Research2008，23，2： | 19 |
| 7 | The b2/b3 subdeletion shows higher risk of spermatogenic failure and higher frequency of complete AZFc deletion than the gr/gr subdeletion in a Chinese population显示文摘 | Lu, C. C. Zhang, J. Li, Y. C. Xia, Y. K. Zhang, F. Wu, B. Wu, W. Ji, G. X. Gu, A. H. Wang, S. L. Jin, L. Wang, X. R. | 2009 | 南京医科大学学报(自然科学版)2009，29，4： | 16 |
| 8 | Tooth regeneration: a revolution in stomatology and evolution in regenerative medicine显示文摘A tooth is a complex biological organ and consists of multiple tissues including the enamel, dentin, cementum and pulp. Tooth loss is the most common organ failure. Can a tooth be regenerated? Can adult stem cells be orchestrated to regenerate tooth structures such as the enamel, dentin, cementum and dental pulp, or even an entire tooth? If not, what are the therapeutically viable sources of stem cells for tooth regeneration? Do stem cells necessarily need to be taken out of the body, and manipulated ex vivo before they are transplanted for tooth regeneration? How can regenerated teeth be economically competitive with dental implants? Would it be possible to make regenerated teeth affordable by a large segment of the population worldwide? This review article explores existing and visionary approaches that address some of the above-mentioned questions. Tooth regeneration represents a revolution in stomatology as a shift in the paradigm from repair to regeneration: repair is by metal or artificial materials whereas regeneration is by biological restoration. Tooth regeneration is an extension of the concepts in the broad field of regenerative medicine to restore a tissue defect to its original form and function by biological substitutes. | Sibel Yildirim Susan Y. Fu Keith Kim Hong Zhou Chang Hun Lee Ang Li Sahng Gyoon Kim Shuang Wang Jeremy J. Mao | 2011 | International Journal of Oral Science2011，3，3： | 16 |
| 9 | Optimization of N18 Zirconium Alloy for Fuel Cladding of Water Reactors显示文摘In order to optimize the microstructure and composition of N18 zirconium alloy(Zr-1Sn-0.35Nb-0.35Fe-0.1Cr,in mass fraction,%),which was developed in China in 1990s,the effect of microstructure and composition variation on the corrosion resistance of the N18 alloy has been investigated.The autoclave corrosion tests were carried out in super heated steam at 400 ℃/10.3 MPa,in deionized water or lithiated water with 0.01 mol/L LiOH at 360 ℃/18.6 MPa.The exposure time lasted for 300-550 days according to the test temperature.The results show that the microstructure with a fine and uniform distribution of second phase particles(SPPs),and the decrease of Sn content from 1%(in mass fraction,the same as follows) to 0.8% are of benefit to improving the corrosion resistance;It is detrimental to the corrosion resistance if no Cr addition.The addition of Nb content with upper limit(0.35%) is beneficial to improving the corrosion resistance.The addition of Cu less than 0.1% shows no remarkable influence upon the corrosion resistance for N18 alloy.Comparing the corrosion resistance of the optimized N18 with other commercial zirconium alloys,such as Zircaloy-4,ZIRLO,E635 and E110,the former shows superior corrosion resistance in all autoclave testing conditions mentioned above.Although the data of the corrosion resistance as fuel cladding for high burn-up has not been obtained yet,it is believed that the optimized N18 alloy is promising for the candidate of fuel cladding materials as high burn-up fuel assemblies.Based on the theory that the microstructural evolution of oxide layer during corrosion process will affect the corrosion resistance of zirconium alloys,the improvement of corrosion resistance of the N18 alloy by obtaining the microstructure with nano-size and uniform distribution of SPPs,and by decreasing the content of Sn and maintaining the content of Cr is discussed. | B.X. Zhou M. Y. Yao Z.K. Li X.M. Wang J. Zhoua C.S. Long Q. Liu B.F. Luan | 2012 | Journal of Materials Science & Technology2012，28，7： | 13 |
| 10 | Improving Drought Tolerance of Rice by Designed QTL Pyramiding显示文摘Drought is the most important factor limiting rice yields in the rainfed areas of Asia. To overcome the problem, we developed a new strategy 'designed QTL pyramiding' to more effi ciently develop drought tolerant (DT) | Z.K. Li D. Dwivedi Y.M. Gao T.Q. Zheng R. Lafitte J.L. Xu D. Mackill B.Y. Fu J.Domingo Y. Sun L.H. Zhu | 2007 | 分子植物育种2007，5，2： | 12 |
| 11 | HEAT TRANSFER BEHAVIOR OF SUPERALLOY DROPLETS DURING SPRAY FORMING显示文摘Based on the Newtonian heat transfer formulation and classical heterogeneous nucleation theory, a mathematical model has been established to predict the profile of flight velocity, heat transfer coefficient, temperature, solid fraction and cooling rate of atomizing droplets for a superalloy. The results indicated that above parameters change with different droplet size and flight distance. The changing trend as well as the mechanism for the change are described and discussed. | J.F. Sun, J. Shen, Z. Y. Li, J. Jia and Q.C. Li National Key Laboratory of Metal Precision Hot Processing, Harbin Institute of Technology, Harbin 150001, China | 2000 | Acta Metallurgica Sinica(English Letters)2000，13，2： | 11 |
| 12 | A LOOP DRAWBEAD RESTRAINING FORCE MODEL IN SHEET METAL DEEP DRAWING PROCESS显示文摘In sheet metal forming, drawbeads are often used to control uneven material flow which may cause defects such as wrinkles, fracture, surface distortion and springback. Appropriate setting and adjusting the drawbead force is one of the most important pa- rameters in sheet metal forming process control. This paper derives the model of loop drawbead restraining force (DBRF) using plastic forming theory, and gives the min imum blankholding force. Experiments are carried out to verify the proposed DBRF model. The good agreement between the calculated values and experiments data justi- fies the proposed loop drawbead restraining force model. | Y.J. Luo, S.P. Li, J.F. Zheng, D.N. He, Y.Q. Zhang, J.L. Cheng and J. Y. Jiang 1)National Mold & Die CAD Engineering Research Center, Shanghai 200030, China 2)Shanghai Volkswagen Automotive Company Ltd.(SVM), Shanghai 201805, China | 2001 | Acta Metallurgica Sinica(English Letters)2001，14，5： | 11 |
| 13 | Pregnancy outcomes and risk factors for low birth weight and preterm delivery among HIV-infected pregnant women in Guangxi, China显示文摘在中国的背景六省在 2009 和五个省在这个国家说明了所有报导 HIV/AIDS 案例的 70-80 说明了属于的 HIV cases.Because Guangxi 的 78 所有报导 mother-to-child 传播( MTCT )两个组,加节目的 Mother-to-Child 传播( PMTCT )的预防在那里被建立理解更好低的出生重量( LBW )和 preterm 交货( PD )出生结果和他们的联系风险因素 better.Methods 怀孕结果被检验在之中95 CI 1.11-25.55 ) 并且 CD4 房间计数 100-199 cells/l (AOR 3.40;95 Cl 1.03-11.25,与 CD4 房间计数 350 cells/l 相比) , gestational 年龄 37 星期(AOR 4.38;95 CI 1.29-14.82,与 37 个星期相比) ,母亲的重量 45 kg (AOR 5.64;95 Cl 1.09-29.07 ) 并且母亲的重量 45-54 kg (AOR 3.55;95 Cl 1.31-9.60,与 55 kg 相比) 在注册,和 HIV RNA 100 在注册的 000 copies/ml (AOR 4.22;95 Cl 1.24-14.32 ) 并且 20 000-99 999 (AOR 2.77;95 CI 1.01-7.77,与 20 000 copies/ml 相比) 与 LBW.For PD 的更高的风险被联系,仅仅母亲的注射药使用作为 HIV 传播的线路(AOR 5.30; 95 CI 1.33-21.14 ,与通过性传播感染 HIV 的那些相比)显著地与 PD.Conclusions 更低的 CD4 房间计数的更高的风险被联系,在注册的更高的 HIV RNA 病毒的负担与 LBW.Optimal 胎儿的照顾被联系包括更早胎儿的屏蔽和 HIV 诊断,对更早的 PMTCT 预防或 HIV treatent 批评阻止 HIV 的传播到婴儿并且也阻止 LBW 怀孕结果。 | Yu Lan Li Wen-ying Chen, Ray Y. Tang Zhi-rong Pang Jun Gui Xiu-zhi Meng Xiu-ning Zhang Fu-jie | 2012 | Chinese Medical Journal2012，，3： | 10 |
| 14 | Vagal Nerve Stimulation May Be a Potentially Beneficial Treatment for Acute Myocardial Ischemia显示文摘 | J. Xiong F. S. Xue Y. J. Yuan Q. Wang S. Li J. H. Liu X. Liao Y. M. Zhang | 2010 | 麻醉与监护论坛2010，17，5： | 10 |
| 15 | The present and future of the magnesium alloy researches显示文摘This paper gave a brief discussion on the characteristics of Mg alloys and gave a brief review in the Mg alloys researches, with emphasis on the research progress and fabrication technology. Several vital directions for the future development were pointed out. | ~*Y. Y. Li(Key Laboratory for Advanced Metallic Materials Processing and Forming of Guangdong Advanced Metallic Materials Research and ProcessingTechnology Center, South China University of Technology, Guangzhou 510640, Guangdong, P. R. China) | 2004 | China Foundry2004，1，S1： | 10 |
| 16 | EFFECT OF NANOCRYSTALLINE AND TWIN BOUNDARIES ON CORROSION BEHAVIOR OF 316L STAINLESS STEEL USING SMAT显示文摘借助于表面机械摩擦处理( SMAT ),因为紧张和紧张率的不同分布,有大约从对待的表面在大约 50 μm 深度在大约 20 μm 深度和众多的机械双胞胎形成的 60nm 的一条直径的谷物尺寸沿着深度取向在 316L 不锈钢被综合。例如,最大的紧张率到达了 10 3 10 4 最高的表面上的 s −1 。在微观结构和腐蚀性质之间的关系在 0.05M H 2那么4+ 0.25M Na 2那么4水溶液,并且结果在归因于 nanocrystaline 边界的存在的腐蚀抵抗由于成双的边界和明显的减小的外观显示出腐蚀抵抗的极端改进。 | A.Q. Lü Y. Zhang Y. Li G. Liu Q.H. Zang C.M. Liu | 2006 | Acta Metallurgica Sinica(English Letters)2006，19，3： | 10 |
| 17 | Signaling pathways for germ cell death in adult cynomolgus monkeys(Macaca fascicularis) induced by mild testicular hyperthermia and exol enous testosterone treatment显示文摘 | Jia, Y. Hikim, A.P.S. Lue,Y.H. Swerdloff, R.S. Vera,Y. Zhang,X. S. Hu, Z. Y. Li, Y. C. Liu, Y. X. Wang, C | 2007 | 南京医科大学学报(自然科学版)2007，27，10： | 10 |
| 18 | Identification of JWA as a novel functional gene responsive to environmental oxidative stress induced by benzo a pyrene and hydrogen peroxide显示文摘 | Chen, R. Qiu, W. Liu, Z. L. Cao, X. J. Zhu, T. Li, A. P. Wei, Q. Y. Zhou, J. W. | 2007 | 南京医科大学学报(自然科学版)2007，27，10： | 9 |
| 19 | Infection of hepatitis B virus in extrahepatic endothelial tissues mediated by endothelial progenitor cells显示文摘 | Rong, Q. F. Huang, J. Su, E. B. Li, J. Li, J. Y. Zhang, L. L. Cao, K. J. | 2007 | 南京医科大学学报(自然科学版)2007，27，10： | 9 |
| 20 | Optimisation of cultivation conditions of a mutant of Trichosporon laibachii CBS 5791 for enantioselective resolution of ketoprofen ester显示文摘 | Zhang, Y. Y. Liu, J. H. Qiu, L. H. Shi, Y. J. Su, Z. L. Xia, Y. M. Li, F. M. | 2007 | 中国生物学文摘2007，21，2： | 9 |
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