中国科学院机构知识库网格系统: 检索

A Panel Data Analysis of Subjective Well-Being Based on Microblog User Information 期刊论文 OAI收割
HEALTHCARE, 2022, 卷号: 10, 期号: 11, 页码: 18
作者: Li, Shuijin; Zhu, Tingshao

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收藏 | 浏览/下载：30/0 | 提交时间：2023/01/30

subjective well-being China's Livelihood Index Granger causality test fixed-effects model Easterlin Paradox

The Discrete Numerical Models and Transient Pressure Curves of Fractured-Vuggy Units in Carbonate Reservoir 会议论文 OAI收割
Tianjin, PEOPLES R CHINA, JUN 10-11, 2017
作者: Chen LX; Liu YW(刘曰武); Zhu ZQ; Gao DP(高大鹏); Cao W(曹文)

收藏 | 浏览/下载：26/0 | 提交时间：2018/06/06

Carbonate Reservoir Fractured-vuggy Units Well Test Model Transient Pressure Curves

Study on numerical well test for discrete-fracture cavity model 会议论文 OAI收割
Tianjin, PEOPLES R CHINA, JUN 10-11, 2017
作者: Chen FF; Hou SJ; Ding ZW; Liu YW(刘曰武); Xue JL

收藏 | 浏览/下载：27/0 | 提交时间：2018/06/06

Discrete-fracture Model Finite Element Method Numerical Well Test Vuggy Carbonate Reservoir

A numerical approach for pressure transient analysis of a vertical well with complex fractures 期刊论文 OAI收割
ACTA MECHANICA SINICA, 2016, 卷号: 32, 期号: 4, 页码: 640-648
作者: Wan YZ; Liu YW(刘曰武); Liu WC(刘文超); Han GF; Niu CC

收藏 | 浏览/下载：25/0 | 提交时间：2016/12/08

Fractured Well Discrete-fracture Model Numerical Well Test Hybrid Finite Element Method Complex Fracture

Numerical investigation of dual-porosity model with transient transfer function based on discrete-fracture model 期刊论文 OAI收割
Applied Mathematics and Mechanics, 2016, 卷号: 37, 期号: 5, 页码: 611-626
作者: Wan YZ; Liu YW(刘曰武); Ouyang WP; Han GF; Liu WC

收藏 | 浏览/下载：37/0 | 提交时间：2016/09/05

Dual-porosity Model (Dpm) Discrete-fracture Model Fracture Network Finite-element Method Upscaling Numerical Well Test

Fracture Network Numerical Well Test Model Based on the Discrete-fracture Model 期刊论文 OAI收割
Procedia Engineering, 2015, 卷号: 126, 页码: 512-516
作者: Wan YZ; Liu YW(刘曰武); Ouyang WP; Niu CC; Han GF(韩国锋)

收藏 | 浏览/下载：25/0 | 提交时间：2016/08/25

discrete-fracture model fracture network numerical well test finite-element method conductivity fracture density permeability anisotropy

A well test model for composite reservoir with resistance force on interface 期刊论文 OAI收割
THE OPEN PETROLEUM ENGINEERING JOURNAL, 2013, 卷号: 6, 期号: 1, 页码: 43-48
作者: Sun HD(孙贺东); Liu YW(刘曰武); Shi Y

收藏 | 浏览/下载：17/0 | 提交时间：2013/11/18

Well test analysis model resistance force on interface open fracture composite reservoir Laplace transform

Study of experimental design and Response Surface method for surrogate model of computational simulation (EI CONFERENCE) 会议论文 OAI收割
2nd Annual Conference on Electrical and Control Engineering, ICECE 2011, September 16, 2011 - September 18, 2011, Yichang, China
Xi R.; Jia H.; Xiao Q.

收藏 | 浏览/下载：21/0 | 提交时间：2013/03/25

While the high-precision simulation is widely used in science and technology Design of Experiment (DOE) based on Response Surface (RS) method can be employed in surrogate model to reduce the cost and error. In order to illustrate the relationship between parameters and response features several DOE methods and Response Surface (RS) method are studied. The author used polynomial regression and RBF neural network based on orthogonal array to build a rocket aerodynamic discipline surrogate model respectively which proved their feasibility. From the results of the test case conclusion is drawn that characteristic as well as acclimatization of DOE methods and different approximation should be considered for different issues so the factors of cost and accuracy could reach a balance synthetically. 2011 IEEE.

SoC test data compression technique based on RLE-G (EI CONFERENCE) 会议论文 OAI收割
2010 International Conference on Advanced Measurement and Test, AMT 2010, May 15, 2010 - May 16, 2010, Sanya, China
作者: Liu W.; Yang L.; Yang L.; Zheng X.

收藏 | 浏览/下载：35/0 | 提交时间：2013/03/25

Test data compression has been an effective way to reduce test data volume and test time as well as to solve automatic test equipment (ATE) memory and bandwidth limitation. We analyze the limitations of current test data compression algorithm and draw on the previous experience to deduce an optimal compression coding model suitable for SoC test data. In addition in this paper we make full use of the relevance of the test vectors and the advantages of statistical coding to present an efficient test data compression method RLE-G based on the coding model and give the RLE-G the optimal compression efficiency of the boundary conditions and realization steps. The experimental results for ISCAS 89 benchmark circuits demonstrate RLE-G have the excellent advantages of high compression ratio. (2010) Trans Tech Publications.

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：27/0 | 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.