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| 1 | MICROSTRUCTURAL MODEL OF GATORIZED WASPALOY IN THE ISOTHERMAL FORGING PROCESS显示文摘A microstructural model, which was to predict the evolution of microstructure of Gatorized Waspeloy in the isothermal forcing process, was developed in terms of dynamic recrystallization and grain growth. Three steps of experiment were conducted during developing the model: (1) .Specimens were compressed in M FS testing machine; (2) Dynamic recrystallization and grain growth were discussed; (3) Dynamic recrys- tallization model and grain growth mode were set up. The agreement of simulated results and experimental data is fine. | J.P. Hu (Chongqing Iron and Steel Designing Research Institute, Chongqing 400013, China) J. Y. Zhuang, J.H. Du, Q. Deng, D. Feng and Z. Y. Zhong (Central Iron and Steel Research Institute, Beijing 100081, China) P. Janschek and J. Kramer (Thyssen Umformte | 2001 | Acta Metallurgica Sinica(English Letters)2001，14，3： | 61 |
| 2 | PHYSICAL MODELING FOR THE MECHANISMS OF BEAD FORMATION DEFECTS BASED ON THE STABILITY OF LIQUID METAL显示文摘Based on the theory of stability of the liquid metal under the action of surface tension,a physical mod- el is established for the mechanisms of the bead formation deferct’ humping’, which is generated during high - speed welding.A boundary function is introduced to correct the model,theoretical results got by the model correspond well with the experimental phenomena. A two - dimensional conducting model is adoopted in the simulation of the temperature field during high - speed welding.Finally, the factors acting upon the stability of liquid metal are analyzed. | S. Y. Yin L. Feng J. Z. Ding and S. J. Chan( 1) Beijing Polytechnic University, Beijing 100022, China 2) National Key Laboratory of Advanced Wdlding Production Technology, HIT, Harbin 150001, China) | 2000 | Acta Metallurgica Sinica(English Letters)2000，13，1： | 28 |
| 3 | 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 |
| 4 | 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 |
| 5 | MICROWAVE PERMEABILITY SPECTRA OF SPUTTERED Fe-Co-B SOFT MAGNETIC THIN FILMS显示文摘Permeability characteristics of sputtered soft magnetic Fe40Co40B20 thin films are investigated in the range of 0.5 to 5 GHz by a shortened microstrip transmission line perturbation method. Excellent microwave permeability is achieved at 0.4 Pa argon pressure: fr is 3.32 GHz, the real and imaginary part of permeability at 0.5 GHz are 104 and 61, respectively. In addition, the thickness effect on permeability is also studied. The minimum damping can be achieved at the thinnest film. Different sources contributed to in-plane anisotropy are discussed briefly. The deviation between the peak frequency of the imaginary part and the zero-crossing frequency of the real part of permeability is also presented. | J.S. Liao Z.K. Feng J. Qiu Y. Q. Tong | 2008 | Acta Metallurgica Sinica(English Letters)2008，21，6： | 8 |
| 6 | Effects of PI3-k/Akt short hairpin RNA on proliferation, fibronectin production and synthesis of thrombospondin-1 and transforming growth factor-beta(1 ) in glomerular mesangial cells induced by sublytic C5b-9 complexes显示文摘 | Gao, L. Zhang, Y. Qiu, W. Xu, W. Feng, X. Ren, J. Jiang, X. Wang, H. Zhao, D. Wang, Y. | 2009 | 南京医科大学学报(自然科学版)2009，29，3： | 5 |
| 7 | Annual Time-series Analyses of Total Gaseous Mercury Measurement and its Impact Factors on the Gongga Mountains in the Southeastern Fringe of the Qinghai-Tibetan Plateau显示文摘Long-term monitoring programs for measurement of atmospheric mercury concentrations are presently recognized as powerful tools for local,regional and global studies of atmospheric long-range transport processes,and they could also provide valuable information about the impact of emission controls on the global budget of atmospheric mercury,their observance and an insight into the global mercury cycle. China is believed to be an increasing atmospheric mercury emission source. However,only a few measurements of mercury,to our knowledge,have been done in ambient air over China. The highly-time resolved atmospheric mercury concen-trations have been measured at Moxi Base Station (102°72′E 29°92′N,1640 m asl) of the Gongga Alpine Ecosystem Observation and Experiment Station of Chinese Academy of Sciences (CAS) from May 2005 to June 2006 by using a set of Automatic Atmospheric Mercury Speciation Analyzers (Tekran 2537A). Measurements were carried out with a time resolution of every 15 minutes. The overall average total gaseous mercury (TGM) covering the measurement periods was 4±1.38 ng·m-3 (N=57310),which is higher than the global background level of approximately 1.5~2.0 ng·m-3. The measurements in all seasons showed a similar diurnal change pattern with a high concentration during daytime relative to nighttime and maximum concentration near solar noon and minimum concentration immediately before sunrise. The presence of diurnal TGM peaks during spring and summer was found earlier than that during autumn and winter. When divided seasonally,it was found that the concentrations of TGM were highest in winter with 6.13 ± 1.78 ng·m-3 and lowest in summer with 3.17 ± 0.67 ng·m-3. There were no significant differences in TGM among wind sectors during each season. Whereas Hg generally exhibited significant correlations with the parameters,such as temperature,saturated vapor pressure,precipitation,ultraviolet radiation (UV) and atmospheric pressure at the whole measurement stage,and the correlations varied seasonally. Our results suggest that the local or regional abundant geothermal activities,such as thermal spring,anthropogenic source processes and changes in meteorological conditions,regulate and affect Hg behavior in the study area. | ZHU Wanze FU Xuewu FENG Xinbin Julia Y. Lu | 2008 | Journal of Mountain Science2008，5，1： | 4 |
| 8 | Endosperm Development in Autotetraploid Rice显示文摘By using the laser scanning confocal microscope and plastic (Leica 7022 historesin embedding kit) semi-thin sectioningtechnique, comparative studies on the development of endosperm were carried out between autotetraploid and diploid rices. Aboutone third of the ovaries in the autotetraploid showed normal endosperm development as those in the diploid. In these ovaries, one ofthe polar nuclei would fuse with the sperm nucleus, and the primary endosperm nucleus formed and underwent the first division in 4hours after pollination; the anticlinal wall began to grow centripetally between the free nuclei starting from the wall ingrowths of theembryo sac near the micropylar end, and some of the phragmoplasts formed transformed into periclinal walls. In addition, some of thecell wall situated in the middle of the endosperm appeared to originate from phragmoplasts, whereas others seemed to developrandomly without the obvious formation of phragmoplasts. Cellulose began to accumulate in the wall of aleurone cell layer at 6 daysafter pollination. The cellulose wall of the cells of the aleurone cell layer appeared to have completely formed within 7 to 8 days afterpollination. On the other hand, about two thirds of the ovaries in the autotetraploid showed abnormality in endosperm developmentwith various types, such as non-fertilization, abnormal fertilization, endosperm development-delay and non-synchronization in thedevelopment of cellulose wall of cells of the aleurone layer. These abnormalities usually resulted in decreased seed setting inautotetraploid rice. | WANG Lan LIU Xiang-dong LU Yong-gen FENG Jiu-huan Xu Xue-bin Xu Shi-xiong (S. Y. Zee) | 2005 | Rice science2005，12，2： | 4 |
| 9 | INTERMETALLICS AS SUBSTITUTES FOR SUPERALLOYS显示文摘The application advances of TiAl, Ti3Al and Ni3Al base alloys were demonstrated by Central Iron and Steel Research Institute, China. The recent research progresses on improving the reliability of cast TiAl were mainly presented and discussed. The characteristics of the self-oriented lamellar microstructure in cast TiAl were investigated in both as cast and as HIPed states. Based on the mechanical anisotropy of the cast lamellar microstructure, the component specific microstructure design was proposed for a better performance and reliability of cast TiAl. | J. Zhang D. Feng Z. Y. Zhong | 2005 | Acta Metallurgica Sinica(English Letters)2005，18，4： | 3 |
| 10 | Comparison of laparoscopically assisted and open radical distal gastrectomy with extended lymphadenectomy for gastric cancer management显示文摘 | W. Ziqiang Q. Feng C. Zhimin W. Miao Q. Lian L. Huaxing Y. Peiwu | 2006 | Surgical Endoscopy2006，，11： | 2 |
| 11 | Study on the relationship between structure and enantioselectivity of a hyperthermophilic esterase from archaeon Aeropyrum pernix K1显示文摘 | Zhang, G. R. Gao, R. J. Zheng, L. Y. Zhang, A. J. Wang, Y. H. Wang, Q. Y. Feng, Y. Cao, S. G. | 2007 | 中国生物学文摘2007，21，4： | 2 |
| 12 | Uric Acid Stimulates Monocyte Chemoattractant Protein-1 Production in Vascular Smooth Muscle Cells Via Mitogen-Activated Protein Kinase and Cyclooxygenase-2显示文摘 | John Kanellis Susumu Watanabe Jin H. Li Duk Hee Kang Ping Li Takahiko Nakagawa Ann Wamsley David Sheikh-Hamad Hui Y. Lan Lili Feng Richard J. Johnson | 2003 | Hypertension: Journal of the American Heart Association2003，，6： | 2 |
| 13 | DIFFUSION BONDING OF TiAl TO Ti AND TC4 ALLOY显示文摘TiAl was diffusion bonded to Ti and TC4 alloy in vacuum furnace. Results showed,at the TiAl-Ti interface,the reaction layer of stratification Ti3Al was formed closest to TiAl base,and the a phase and the α + βphase arised closest to Ti base at 1173K and 1573K respectively. The phase structure of TiAl/ and the phase structure of TiAlwere observed be- tween AiAl and TC4 under respetive bonding temperature.The fiacture at tensile testing occurred in the bond - line, producing very flat fracture surfaces with some pull-out of the TiAl materials.The ultimate tensile strengths of the joint were approximate to γ-TiAl base marterial. | P. He J. H. Zhang J. C. Feng and Y. Y. Qian (National Key Laboratory of Advanced Welding Production Technology, HIT, Harbin 150001, China) | 2000 | Acta Metallurgica Sinica(English Letters)2000，13，1： | 2 |
| 14 | Comparison of laparoscopically assisted and open radical distal gastrectomy with extended lymphadenectomy for gastric cancer management显示文摘 | W. Ziqiang Q. Feng C. Zhimin W. Miao Q. Lian L. Huaxing Y. Peiwu | 2006 | Surgical Endoscopy2006，，11： | 2 |
| 15 | Intensity-Modulated Radiotherapy of Head and Neck Cancer Aiming to Reduce Dysphagia: Early Dose–Effect Relationships for the Swallowing Structures显示文摘 | Felix Y. Feng Hyungjin M. Kim Teresa H. Lyden Marc J. Haxer Mary Feng Frank P. Worden Douglas B. Chepeha Avraham Eisbruch | 2007 | International Journal of Radiation Oncology, Biology, Physics2007，，5： | 2 |
| 16 | 查看详情显示文摘 | Han W. W Wang Y Zhou Y. H Yao Y. Li Z.S. Feng Y | | 0，，： | 1 |
| 17 | Polar organic tracers in PM2.5 aerosols from forests in eastern China显示文摘 | Wang W. Wu M. H. Li L. Zhang T. Liu X. D. Feng J. L. Li H. J. Wang Y. J. Sheng G. Y. Claeys M. Fu J. M | 2008 | 2008 (150)2008，，150： | 1 |
| 18 | Isolation and identification of a novel flavonoid from Penthorum chinense P.显示文摘 | H. -W. Wang Y. -Q. Liu C. -G. Feng | 2006 | Journal of Asian Natural Products Research2006，，8： | 1 |
| 19 | The hydrochemical characteristics and evolution of groundwater and surface water in the Heihe River Basin, northwest China显示文摘 | G. F. Zhu Y. H. Su Q. Feng | 2008 | Hydrogeology Journal2008，，1： | 1 |
| 20 | Clinical features of myasthenia gravis in southern China: a retrospective review of 2,154 cases over 22 years显示文摘 | X. Huang W. B. Liu L. N. Men H. Y. Feng Y. Li C. M. Luo L. Qiu | 2013 | Neurological Sciences2013，，6： | 1 |
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