Science in China Series E: Technological Sciences

Công bố khoa học tiêu biểu

* Dữ liệu chỉ mang tính chất tham khảo

Sắp xếp:  
Anisotropic plastic deformation behavior of as-extruded ZK60 magnesium alloy at room temperature
Science in China Series E: Technological Sciences - Tập 52 - Trang 161-165 - 2009
JinBao Lin, LiMing Peng, QuDong Wang, J. R. Hans, WenJiang Ding
The anisotropic plastic deformation behavior of as-extruded ZK60 magnesium alloy at room temperature (RT) was investigated by compressive and tensile testing in different directions, i.e. the loading axis oriented at 0°, 45° and 90° to the extrusion direction. The relationship between texture and plastic deformation behavior were examined. The results show that the extruded ZK60 alloy exhibits a s...... hiện toàn bộ
Recent progress in thermodynamics of radiation—exergy of radiation, effective temperature of photon and entropy constant of photon
Science in China Series E: Technological Sciences - Tập 51 - Trang 1096-1109 - 2008
ZeShao Chen, SongPing Mo, Peng Hu
The recent progress on thermodynamic properties of spectral radiant energy in the field of thermodynamics of radiation is reviewed. The effective temperature of photon T λ representing the energy quality of photon is introduced. The relation between T λ and the wavelength λ is gi...... hiện toàn bộ
The electric properties and the current-controlled differential negative resistance of cBN crystal
Science in China Series E: Technological Sciences - Tập 51 - Trang 2305-2310 - 2008
QingPing Dou, HaiTao Ma
The electric properties of nonintentionally doped n-cubic boron nitride (cBN) crystal are investigated. The cBN crystal was transformed from hexagonal-boron nitride (h-BN) under high pressure (HP) and high temperature (HT) using magnesium powder as catalyst. At room temperature, the current-voltage (I-V) characteristics of cBN crystal are measured and found to be nonlinear. When the electric field...... hiện toàn bộ
A theoretical study of asymptotic boundary conditions for the numerical solutions of open-boundary static electromagnetic-field problems
Science in China Series E: Technological Sciences - Tập 45 - Trang 541-551 - 2002
Xikui Ma, Shejiao Han
Based on the multipole expansion theory of the potential, a satisfactory interpretation is put forward of the exact nature of the approximations of asymptotic boundary condition (called the ABC) techniques for the numerical solutions of open-boundary static electromagnetic-field problems, and a definite physical meaning is bestowed on ABC, which provide a powerful theoretical background for laying...... hiện toàn bộ
Online recognition of the multiphase flow regime
Science in China Series E: Technological Sciences - - 2008
Bofeng Bai, Shaojun Zhang, Liang Zhao, Ximin Zhang, Liejin Guo
Study on the water environment and composition of Lhasa river
Science in China Series E: Technological Sciences - Tập 44 - Trang 96-100 - 2001
Aifeng Ning, Tianchou Liu, Guan Yin, Feng Liu
By measuring and comparing δD, δ18O, and3H values of different sections in Lhasa River, we can trace its water resource and water environment. We have concluded that the upper reaches of the Lhasa River are mainly supplied by melt-water (with lower3H value and mineralization degree) and underground water (with lower3H value and higher mineralization degree). The middle reaches are mainly supplied ...... hiện toàn bộ
Numerical simulation of electroosmotic flow in hydrophobic microchannels
Science in China Series E: Technological Sciences - Tập 52 - Trang 2460-2465 - 2009
DaYong Yang, Ying Liu
Electroosmotic flow (EOF) is a promising way for driving and mixing fluids in microfluidics. For the parallel-plate microchannel with the hydrophobic surface, this paper solved the governing equations using the finite element method (FEM), and the effects of microchannel height, electric strength and ionic concentration on EOF were thus investigated. The simulation indicates that the transient cha...... hiện toàn bộ
Comparison of the influence factors onNDVI for CCD camera and WFI imager on CBERS-02
Science in China Series E: Technological Sciences - Tập 48 - Trang 100-115 - 2005
Tao Yu, Xiaoying Li, Yong Zhang, Feng Zhao, Xingfa Gu, Li Zhu, Pengxin Wang, Xiangjun Min
CCD and WFI are payloads in the visible light and near infrared bands on CBERS satellites and they have not been applied widely, especially WFI. This article mainly probes into the potential of these two sensors’ application in the vegetation monitoring and analyses the influences of radiometric calibration, atmosphere conditions and sun-observing geometry, etc. onNDVI obtained from these two sens...... hiện toàn bộ
Lattice-parameter effects on diffracted transmission of GaN two-dimensional square-lattice photonic crystals
Science in China Series E: Technological Sciences - Tập 54 - Trang 23-27 - 2010
Chang Xiong, Bei Zhang, XiangNing Kang, XingXing Fu, GuoYi Zhang
The lattice-parameter effects on the diffracted transmission of GaN square-lattice photonic crystals (2PhC) at the wavelength of 460 nm were studied by using a rigorous coupled wave analysis (RCWA). The impacts of lattice parameters on the diffracted transmission are calculated in the ranges for lattice pitch from 100 nm to 2000 nm, fill factor from 0.1 to 0.9 and grating height from 100 nm to 100...... hiện toàn bộ
Scale effects and scaling-up by geometric-optical model
Science in China Series E: Technological Sciences - Tập 43 - Trang 17-22 - 2000
Xiaowen Li, Jindi Wang, A. H. Strahler
This is a follow-up paper to our “Scale effect of Planck’s law over nonisothermal blackbody surface”. More examples are used to describe the scale effect in detail, and the scaling-up of Planck law over blackbody surface is further extended to three-dimension nonisothermal surface. This scaling-up results in a conceptual model for the directionality and spectral signature of thermal radiation at t...... hiện toàn bộ
Tổng số: 1,628   
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 10