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| 1 | Core Collection Based Backcrossing: An Eff icient Approach for Breeding, Germplasm Enhacement and Gene Discovery显示文摘Plant germplasm underpins much of crop development. Millions of germplasm accessions have been collected and conserved ex situ, and the major challenge is now how to exploit and utilize this abundant resource. | J.Z. Jia R.H. Zhou X.Y. Zhang L. Zhang Y.L. Li J. Wang X.Z. Liu L.F. Gao S.B. Liu | 2007 | 分子植物育种2007，5，2： | 8 |
| 2 | EFFECT OF INTERPHASE LIFT FORCE ON THE FLUID FLOW IN AN AIR-STIRRED CYLINDRICAL VESSEL显示文摘In the present paper, based on the two-phase model (Eulerian model), the two dimensional fluid flow liz air-stirred water systems is simulated, and the effect of interphase lift force on the fluid flow is specially discussed. In the Eulerian two-phase model, gas and liquid phase are considered to be two different continuous fluids interacting with each other through the finite inter-phase areas. The exchange between the phases is represented by source terms in conversation equations. Turbulence is assumed to be a property of the liquid phase, k - ε model is used to describe the behavior of the liquid phase. The dispersion of phases due to turbulence is represented by introducing a diffusion term in mass consecrvation equation. The contribution of bubble movement to the turbulent energy and its dissipation rate is taken into accounted by adding extra volumetric source terms to the equations of turbulent enemy and its dissipation rate. The comparison between the mathematical simulation and experiment data indicates that the interphase lift force has a big effect on the flow behavior, and considering both drug force and lift force as interphase forces is important to accurately simulate the gas-water two-phase fluid flow in air-stirred systems. The interphase lift force makes bubbles move away from the centerline, the gas concentration is decreased near the centerline, and increased near the wall. The lift force is smaller than drug force at the same place, especially far away from the centerline. | L.F. Zhang K.K. Cai Y. Qu and Y.S. Shen Postdoctoral Fellow of Japan Science Promotion Society Taniguchi Lab., Department of Metallurgy, Graduate School of Engineering, Tohoku University, Sendai980-8579, Japan School of Metallurgy, University of Scien | 2000 | Acta Metallurgica Sinica(English Letters)2000，13，4： | 6 |
| 3 | Grain refinement mechanism of multiple laser shock processing impacts on ANSI 304 stainless steel显示文摘 | J.Z. Lu K.Y. Luo Y.K. Zhang G.F. Sun Y.Y. Gu J.Z. Zhou X.D. Ren X.C. Zhang L.F. Zhang K.M. Chen C.Y. Cui Y.F. Jiang A.X. Feng L. Zhang | 2010 | Acta Materialia2010，，16： | 3 |
| 4 | Preparation of an oxidation protection coating for c/c composites by low pressure chemical vapor deposition显示文摘 | L.F. Cheng Yongdong Xu Litong Zhang Xiaowei Yin | 2000 | Carbon2000，，10： | 1 |
| 5 | Studies on silver nanodecahedrons synthesized by PVP-assisted N , N -dimethylformamide (DMF) reduction显示文摘 | Y. Gao P. Jiang L. Song J.X. Wang L.F. Liu D.F. Liu Y.J. Xiang Z.X. Zhang X.W. Zhao X.Y. Dou S.D. Luo W.Y. Zhou S.S. Xie | 2006 | Journal of Crystal Growth2006，，1： | 1 |
| 6 | 查看详情显示文摘 | Guo Y.N Xu G.F Wemsdorfer W Ungur L. Guo Y. Tang J.K. Zhang H.J. Chibotaru L.F. Powell A K | | 0，，： | 1 |
| 7 | Three-dimensional needled carbon/silicon carbide composites with high friction performance显示文摘 | S.W. Fan Y.D. Xu L.T. Zhang L.F. Cheng L. Yu Y.D. Yuan F.K. Zhang G.L. Tian Z.J. Chen J.J. Lou | 2007 | Materials Science & Engineering A2007，，1： | 1 |
| 8 | Distribution of polycyclic aromatic hydrocarbons in thirty typical soil profiles in the Yangtze River Delta region, east China显示文摘 | L.F. Ping Y.M. Luo H.B. Zhang Q.B. Li L.H. Wu | 2006 | Environmental Pollution2006，，2： | 1 |
| 9 | Distribution of polycyclic aromatic hydrocarbons in thirty typical soil profiles in the Yangtze River Delta region, east China显示文摘 | L.F. Ping Y.M. Luo H.B. Zhang Q.B. Li L.H. Wu | 2006 | Environmental Pollution2006，，2： | 1 |
| 10 | The linear thermal expansion of bulk nanocrystalline Al and SS304 at low temperature显示文摘 | S.G. Wang R.J. Huang Y. Mei K. Long L.F. Li Z.D. Zhang | 2011 | Physica B: Physics of Condensed Matter2011，，14： | 1 |
| 11 | INVESTIGATION OF THE EFFECT OF TEMPERATURES ONTENSILE LOAD DROPS OF TITANIUM ALLOY显示文摘Low temperature may greatly affect the mechanical properties of materials. Some in-teresting mechanical phenomena were detected at very low temperature. In this study,a multi-sample tensile installation was designed to study the plastic deformation be-havior for Ti-5Al-2.5Sn extra-low-interstitial (ELI) alloy at liquid helium temperature.The special geometrical instability phenomena in low temperature, serrated deforma-tion and multi necking, was studied in detail in this project. Slip and twinning were determined in the process of plastic fiow by SEM/TEM analysis. Efficts of temper-ature and sequential straining on load drops in tensile stress-strain curves were also studied. Optical measurement method was used to gauge the geometrical characteristic of multi-necking specimens. The sensitivity of partial thermoplastic deformation and the equivalency of low tempemture with high velocity of this material were studied by using micro-mechanics analysis.The criterion of geometrical instability has been discussed. A computer simulation of the low temperature instability of plastic fiow in Ti-5Al-2.5Sn ELI alloy has been carried out. A computer model has been established which links the hot dtffusion and the plastic fiow of hcp alloys under assumption that the tempemture is homogeneous within the specimen and that the heat exchange with the thermal bath is the control-ling step in the heat release. The computer simulation of the deformation curves as a function of several mechanincal, geometrical and thermal parameters provides a re-alistic description of the experiments. The experimental data available are discnssed in the light of the computer simulation model. | Z Zhang ZH Tu L.F. Li L.Z. Zhaoand D. Jin (Cryogenic Laboratory Chinese Acaderw of Sciences, Beijing 100080, China )H.J Lu (Beijing Institute of Aerospace Materials and Technology, Beijing 100076, China) | 1997 | Acta Metallurgica Sinica(English Letters)1997，10，3： | 0 |
| 12 | Relic Oceanic Crust at Sub-arc Depth: an Example from UHP Eclogites Enclosed in Serpentinites from the Southwestern Tianshan Mountains, China显示文摘Ultra-high pressure(UHP)eclogites that derive from subducted oceanic crust are rarely found at the Earth’s surface because they need to be enclosed in a buoyant host rock such as serpentinites that facilitate | SHEN T.T. ZHANG L.F. LIU F.L HERMANN J. | 2016 | Acta Geologica Sinica(English Edition)2016，90，S1： | 0 |
| 13 | Dissection of Wheat Breeding in China by Marker/Trait Association显示文摘Besides the natural selection, the crops cultivated today have experienced two episodes of strong artifi cial selection, domestic and modern breeding. Domestication led to giant genetic structure differentiation | X.Y. Zhang H.M. Ge G.X. You C.Y. Hao L.F. Wang Y.S. Dong Y.P. Tong B. Li Z.S. Li | 2007 | 分子植物育种2007，5，2： | 0 |
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