中国科学院机构知识库网格系统: 检索

Local weak solution of the isentropic compressible Navier-Stokes equations in a half-space 期刊论文 OAI收割
SCIENCE CHINA-MATHEMATICS, 2020, 页码: 10
作者: Duan, Qin; Huang, Xiangdi

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收藏 | 浏览/下载：29/0 | 提交时间：2021/01/14

Navier-Stokes equation half-space local weak solution vacuum

Layer-by-Layer Processed Organic Solar Cells 期刊论文 OAI收割
ADVANCED ENERGY MATERIALS, 2016, 卷号: 6, 期号: 17
作者: Wang, Yifan; Zhan, Xiaowei

收藏 | 浏览/下载：20/0 | 提交时间：2016/12/29

organic photovoltaics layer-by-layer processes sequential processes solution processes vacuum deposition

Global strong solution of 3D inhomogeneous Navier-Stokes equations with density-dependent viscosity 期刊论文 OAI收割
JOURNAL OF DIFFERENTIAL EQUATIONS, 2015, 卷号: 259, 期号: 4, 页码: 1606-1627
作者: Huang, Xiangdi; Wang, Yun

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收藏 | 浏览/下载：15/0 | 提交时间：2018/07/30

Density-dependent viscosity Inhomogeneous Navier-Stokes equations Strong solution Vacuum

GLOBAL EXISTENCE OF CLASSICAL SOLUTION FOR A VISCOUS LIQUID-GAS TWO-PHASE MODEL WITH MASS-DEPENDENT VISCOSITY AND VACUUM 期刊论文 OAI收割
ACTA MATHEMATICA SCIENTIA, 2014, 卷号: 34, 期号: 1, 页码: 39-52
作者: Wang, Zhen; Zhang, Hui

收藏 | 浏览/下载：36/0 | 提交时间：2015/06/24

viscous liquid-gas two-phase model global classical solution vacuum massdependent viscosity

Formation of delta shocks and vacuum states in the vanishing pressure limit of Riemann solutions to the perturbed Aw-Rascle model 期刊论文 OAI收割
JOURNAL OF DIFFERENTIAL EQUATIONS, 2010, 卷号: 249, 期号: 12, 页码: 3024-3051
作者: Shen, Chun; Sun, Meina

收藏 | 浏览/下载：24/0 | 提交时间：2015/06/25

Delta shock wave Vacuum state Vanishing pressure limit Measure solution Riemann problem Pressureless gas dynamics Aw-Rascle model Traffic flow

Inspection focus technology of space tridimensional mapping camera based on astigmatic method (EI CONFERENCE) 会议论文 OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology, April 26, 2010 - April 29, 2010, Dalian, China
作者: Wang Z.; Wang Z.; Zhang L.; Zhang L.

收藏 | 浏览/下载：26/0 | 提交时间：2013/03/25

The CCD plane of the space tridimensional mapping camera will be deviated from the focal plane(including the CCD plane deviated due to camera focal length changed) under the condition of space environment and vibration impact when satellite is launching image resolution ratio will be descended because defocusing. For tridimensional mapping camera principal point position and focal length variation of the camera affect positioning accuracy of ground target conventional solution is under the condition of vacuum and focusing range calibrate the position of CCD plane with code of photoelectric encoder when the camera defocusing in orbit the magnitude and direction of defocusing amount are obtained by photoelectric encoder then the focusing mechanism driven by step motor to compensate defocusing amount of the CCD plane. For tridimensional mapping camera under the condition of space environment and vibration impact when satellite is launching if the camera focal length changes above focusing method has been meaningless. Thus the measuring and focusing method was put forward based on astigmation a quadrant detector was adopted to measure the astigmation caused by the deviation of the CCD plane refer to calibrated relation between the CCD plane poison and the asrigmation the deviation vector of the CCD plane can be obtained. This method includes all factors caused deviation of the CCD plane experimental results show that the focusing resolution of mapping camera focusing mechanism based on astigmatic method can reach 0.25 m. 2010 Copyright SPIE - The International Society for Optical Engineering.

Interactions of delta shock waves for the transport equations with split delta functions 期刊论文 OAI收割
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 2009, 卷号: 351, 期号: 2, 页码: 747-755
作者: Shen, Chun; Sun, Meina

收藏 | 浏览/下载：21/0 | 提交时间：2015/06/26

Delta shock wave Vacuum state Interaction Measure solution Transport equations Riemann problem

Vacuum solution and quasineutral limit of semiconductor drift-diffusion equation 期刊论文 OAI收割
JOURNAL OF DIFFERENTIAL EQUATIONS, 2009, 卷号: 246, 期号: 4, 页码: 1523-1538
作者: Ri, Jinmyong; Huang, Feimin

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收藏 | 浏览/下载：30/0 | 提交时间：2018/07/30

Drift-diffusion model Quasineutral limit Vacuum solution Finite speed of propagation

Fabrication and electron emission of carbon microtubes (EI CONFERENCE) 会议论文 OAI收割
Technical Digest of the 18th International Vacuum Nanoelectronics Conference, IVNC 2005, July 10, 2005 - July 14, 2005, Oxford, United kingdom
作者: Liu L.; Liu L.; Wang W.; Wang W.

收藏 | 浏览/下载：42/0 | 提交时间：2013/03/25

Carbon nanotubes have been attracting attention because of their unique physical properties and their application potential for field emission cathode. Carbon nanotubes possess the following properties favorable for field emission material such as a high aspect ratio and sharp tip high chemical stability high mechanical strength stable at high temperature. Some research works on carbon nanotubes field emitter and field emission display have been reported. Here a kind of carbon microtubes and its field emission properties are introduced. They have some different properties with carbon nanotubes and the density is lower than carbon nanotubes bundles. These carbon microtubes are directly synthesized by liquidoid epitaxy method on silicon substrates at low temperature. The field emission properties of carbon microtubes are reported too. Carbon microtubes film is synthesized in liquid by electrolysis. The graphite plate is as anode and n-silicon substrate with resistivity of 4-8 cm is as cathode. The electrolysis current is about 5-8mA/cm2 and applied voltage is 800-1500V. Temperatures of the methanol base solution is maintained at 60C in process of deposition of carbon microtubes. Carbon microtubes film is observed by scanning electron microscopy(SEM) as shown in fig.1(a b). The wall's thickness of carbon microtube is about 60nm. The diameter of carbon microtube is about 0.8 m. Raman spectrum of carbon microtubes film shows the two peaks at 1342and 1560cm-1. The field emission properties of carbon microtubes are measured in high vacuum chamber(10-5Pa). The emission area of carbon microtubes is 0.5cm 0.5cm. The threshold of field emission of the carbon microtubes film is about 3.6V/ m. Field emission property of carbon microtubes film is shown in fig.2. Another when the electric field between anode and cathode is 10V/ m the electric field distribution on single carbon microtube is also given after calculation according to electric field theory. Fig 3 shows that electric field distribution vertical section on the of single carbon microtube top with 2 m of highness. These results may help us to understand field emission properties of carbon microtubes. According to research results it is found that liquidoid synthesis is simple method to produce carbon microtubes cold cathode material and the carbon microtubes have better field emission properties. 2005 IEEE.

Renormalization-group effects on scenario with nearly degenerate neutrino masses and bi-maximal mixing 期刊论文 OAI收割
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2000, 卷号: 26, 期号: 8, 页码: 1131-1138
作者: Wu, YL; Wu, YL , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.

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收藏 | 浏览/下载：24/0 | 提交时间：2012/08/29

So(3) Gauge-model Hot Dark-matter Oscillation Solution Vacuum Oscillations Super-kamiokande Solar Textures Matrices Flux