中国科学院机构知识库网格系统: 检索

Removing airwave effects using electromagnetic fields decomposition for 3D MCSEM 期刊论文 OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2018, 卷号: 61, 期号: 2, 页码: 742-749
作者: Wang ShuMing; Di QingYun; Wang Ruo; Su XiaoLu; Mohamed, A.

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收藏 | 浏览/下载：32/0 | 提交时间：2018/09/26

MCSEM Electromagnetic decomposition Airwave Horizontal gradient

Removing airwave effects using electromagnetic fields decomposition for 3D MCSEM 期刊论文 OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2018, 卷号: 61, 期号: 2, 页码: 742-749
作者: Wang ShuMing; Di QingYun; Wang Ruo; Su XiaoLu; Mohamed, A.

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收藏 | 浏览/下载：25/0 | 提交时间：2018/09/26

MCSEM Electromagnetic decomposition Airwave Horizontal gradient

Spatial and seasonal distributions of soil sulfur in two marsh wetlands with different flooding frequencies of the Yellow River Delta, China SCI/SSCI论文 OAI收割
2016
作者: Lu Q. Q.; Bai, J. H.; Fang, H. J.; Wang, J. J.; Zhao, Q. Q.

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收藏 | 浏览/下载：23/0 | 提交时间：2017/11/09

Total sulfur Horizontal distribution Profile distribution Hydrological gradient Topsoil concentration factors bacterial community structure organic sulfur salt-marsh microbial biomass great-plains fractions nitrogen mineralization dynamics carbon

Spatial distribution of phosphorus in marsh soils of a typical land/inland water ecotone along a hydrological gradient 期刊论文 OAI收割
CATENA, 2012, 卷号: 98, 期号: 98, 页码: 96-103
作者: Xiao, Rong; Bai, Junhong; Gao, Haifeng; Huang, Laibin; Deng, Wei

收藏 | 浏览/下载：51/0 | 提交时间：2013/05/22

Phosphorous Phosphorous forms Horizontal distribution Vertical distribution Hydrological gradient Land/inland water ecotone

Oil-gas-water three-phase upward flow through a vertical pipe: Influence of gas injection on the pressure gradient 期刊论文 OAI收割
INTERNATIONAL JOURNAL OF MULTIPHASE FLOW, 2012, 卷号: 46, 页码: 1-8
作者: Xu JY(许晶禹); Zhang J(张健); Liu HF(刘海飞); Wu YX(吴应湘); Xu, JY

收藏 | 浏览/下载：21/0 | 提交时间：2013/01/18

Oil-gas-water flow Pressure gradient Phase inversion Vertical pipe Horizontal Pipes Holdup Phase

Image quality assessment based on gradient complex matrix (EI CONFERENCE) 会议论文 OAI收割
2012 International Conference on Systems and Informatics, ICSAI 2012, May 19, 2012 - May 20, 2012, Yantai, China
作者: Wang Y.; Wang Y.; Wang Y.; Wang Y.; Wang Y.

收藏 | 浏览/下载：26/0 | 提交时间：2013/03/25

An image quality assessment model based on gradient complex matrix is proposed. The vertical and horizontal gradient information of grayscale image is calculated. Complex number is used to construct the measuring matrix. Singular value decomposition is performed in order to obtain the main structure information of the image. The singular value feature vectors of the image gradient complex matrices corresponding to the reference image and the distorted image are used to measure the structural similarity of the two images. PSNR is taken as a tool to evaluate the gradient distribution similarity. Their properties are analyzed by using LIVE database and nonlinearity regression function. 2012 IEEE.

Instabilities in a horizontal liquid layer in co-current gas flow with an evaporating interface 会议论文 OAI收割
Asian Microgravity Pre-Symposium 9th China-Japan-Korea Workshop on Microgravity Sciences, 中国广西桂林/Guilin, China, 2012-10-29
作者: Liu R(刘荣); Liu QS(刘秋生); Kabov OA

收藏 | 浏览/下载：22/0 | 提交时间：2014/04/02

evaporating liquid interface horizontal layer current streamwise rigid stability studied buoyancy gradient driven Chebyshev occur bounded walls system Phase shear

Calculation and analysis of geomagnetic field horizontal gradients in China 期刊论文 OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2010, 卷号: 53, 期号: 12, 页码: 2899-2906
作者: Feng Yan; Pan Jian-Jun; An Zhen-Chang; Sun Han; Mao Fei

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收藏 | 浏览/下载：22/0 | 提交时间：2018/09/26

Taylor polynomial Surface Spline Geomagnetic field model Horizontal gradient

Calculation and analysis of geomagnetic field horizontal gradients in China 期刊论文 OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2010, 卷号: 53, 期号: 12, 页码: 2899-2906
作者: Feng Yan; Pan Jian-Jun; An Zhen-Chang; Sun Han; Mao Fei

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收藏 | 浏览/下载：22/0 | 提交时间：2018/09/26

Taylor polynomial Surface Spline Geomagnetic field model Horizontal gradient

Influence of spatial temperature distribution on high accuracy interferometric metrology (EI CONFERENCE) 会议论文 OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China
作者: Yang H.; Zhang J.; Zhang J.; Zhang J.; Yan F.

收藏 | 浏览/下载：29/0 | 提交时间：2013/03/25

We calculate the influence of temperature change on the refractive index of air establish a model of air temperature distribution and analyze the effect of different temperature distribution on the high accuracy interferometric metrology. First a revised Edlen formula is employed to acquire the relation between temperature and refractive index of air followed by introducing the fixed temperature gradient distribution among the spatial grid within the optical cavity between the reference flat and the test flat of the Fizeau interferometer accompanied by a temperature change random function within each grid. Finally all the rays through the air layer with different incident angles are traced by Matlab program in order to obtain the final output position angle and OPD for each ray. The influence of different temperature distribution and the length of the optical cavity in on the testing accuracy can be analyzed through the RMS value that results from repeatable rays tracing. As a result the horizontal distribution (vertical to optical axis) has a large effect on the testing accuracy. Thus to realize the high accuracy figure metrology the horizontal distribution of temperature must be rigorously controlled as well as to shorten the length of the optical cavity to a large extent. The results from our simulation are of great significant for the accuracy analysis of interferometric testing and the research of manufacturing a interferometer. 2010 Copyright SPIE - The International Society for Optical Engineering.