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浏览/检索结果: 共34条，第1-10条 帮助

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Interfacial chemical mechanisms of brine salinity affecting the CO2 foam stability and its effect on the sequestration capacity of CO2 in deep saline aquifer 期刊论文  OAI收割
JOURNAL OF MOLECULAR LIQUIDS, 2024, 卷号: 399, 页码: 19
作者:  Wen, Yiping;  Zhong, Yiyan;  Zeng, Peihua;  Li, Qi
  |  收藏  |  浏览/下载：1/0  |  提交时间：2025/06/27
Geo-environmental and mechanical behaviors of As(V) and Cd(II) co-contaminated soils stabilized by goethite nanoparticles modified biochar 期刊论文  OAI收割
BIOCHAR, 2023, 卷号: 5, 期号: 1, 页码: 15
作者:  Feng, Chen;  Li, Jiangshan;  Jiang, Wenhao;  Liu, Jindu;  Xue, Qiang
  |  收藏  |  浏览/下载：2/0  |  提交时间：2025/06/27
Global method for stability analysis of anchored slopes 期刊论文  OAI收割
INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS, 2019, 卷号: 43, 期号: 1, 页码: 124-137
作者:  Zhang, Tan;  Zheng, Hong;  Sun, Cong
  |  收藏  |  浏览/下载：24/0  |  提交时间：2020/04/08
A robust solver for the finite element approximation of stationary incompressible MHD equations in 3D 期刊论文  OAI收割
JOURNAL OF COMPUTATIONAL PHYSICS, 2017, 卷号: 351, 页码: 254-270
作者:  Li, Lingxiao;  Zheng, Weiying
  |  收藏  |  浏览/下载：27/0  |  提交时间：2018/07/30
A nearly optimal upper bound for the self-stabilization time in Herman's algorithm 期刊论文  OAI收割
DISTRIBUTED COMPUTING, 2015, 卷号: 28, 期号: 4, 页码: 233-244
作者:  Feng, Yuan;  Zhang, Lijun
  |  收藏  |  浏览/下载：27/0  |  提交时间：2018/07/30
基于机械化学法的PVC行业废汞触媒稳定化固化技术及应用研究 学位论文  OAI收割
硕士, 北京: 中国科学院研究生院, 2015
作者:  任亚峰
收藏  |  浏览/下载：115/0  |  提交时间：2016/08/04
Stable element-free Galerkin solution procedures for the coupled soil-pore fluid problem 期刊论文  OAI收割
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, 2011, 卷号: 86, 期号: 8, 页码: 1000-1026
作者:  Hua, Leina
收藏  |  浏览/下载：22/0  |  提交时间：2013/11/28
A new approach to realize UART (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011, August 12, 2011 - August 14, 2011, Harbin, China
作者:  Wang Y.;  Wang Y.;  Wang Y.;  Wang Y.;  Wang Y.
收藏  |  浏览/下载：41/0  |  提交时间：2013/03/25
In order to connect DSP which has synchronous serial ports to the devices implementing asynchronous communications protocol  a method to implement UART communications based on programmable logic device is proposed in the paper. In the proposed method  the core function of UART is integrated in CPLD with VHDL. Firstly  UART data frame format and operational principle of UART were introduced after reviewing some methods to realize UART. The methods to implement UART transmitter  UART receiver and baudrate generator using VHDL were illustrated in detail. Then pre-simulation and synthesize of VHDL program were executed. Finally  the test with bit error rate was carried out on physical system. Experimental results indicate that 75 percent of the GLB are used by UART  and the bit error rate is less than 109. The experiment was implemented utilizing the RS-422 protocol and the baudrate is 62.5kb/s. The proposed method can satisfy the system requirements of high integration  stabilization  low bit error rate  strong anti-jamming and low cost. 2011 IEEE.  
Distribution of gyroscope accuracy parameters for E-O stabilization platform (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Electric Information and Control Engineering, ICEICE 2011, April 15, 2011 - April 17, 2011, Wuhan, China
作者:  Zhang X.;  Zhang X.;  Zhang X.;  Jiang H.
收藏  |  浏览/下载：34/0  |  提交时间：2013/03/25
E-O stabilization platform performance is partly decided by gyroscope precision  so it is important to choose a gyroscope with proper accuracy for an E-O stabilization platform. Based on the method of using a gyroscope in practice  gyroscope error model is established. With the gyroscope error model gyroscope accuracy parameters  that is bias repeatability  bias stability  scale factor  scale factor nonlinearity  output noise and bandwidth  are separately analyzed. According to the concretely required performance indices for an E-O platform  means of distribution of gyroscope accuracy parameters is proposed. A MEMS gyroscope is tested to get the parameters. Bias stability of the gyroscope is 0.08 /s while the bandwidth is 60 Hz. Output noise both at zero input and at nonzero input is analyzed by means of PSD to get the result that nonzero output noise is higher than zero output noise. Frequency response result of the gyroscope is dealt by means of correlation analysis. With all the tested result and the method of distribution of gyroscope accuracy parameters  it is clear that how the gyroscope errors works in an E-O servo system. The principle of distribution of gyroscope accuracy parameters is helpful for choosing appropriate gyroscope for an E-O platform. 2011 IEEE.  
Design of stable image platform on airborne camera (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Advanced Design and Manufacturing Engineering, ADME 2011, September 16, 2011 - September 18, 2011, Guangzhou, China
作者:  Yang L.;  Yang L.
收藏  |  浏览/下载：19/0  |  提交时间：2013/03/25
Modulation transfer function resulting from random vibration was analyzed. To conclude that the effect of angular displacement was the major factor. Allowable MTF degradation was represented  and 34dB reduction was achieved at frequency of 100HZ. With the help of MSC.ADAMS simulation software  and convert allowable MTF degradation into stable system design parameters  simulated curve proves correct for isolator  which can guide perfect design for stabilization system. Based on the spatial mechanism and translational principle of parallelogram  and the irrotational displacement mechanism was tested by optical method  an irrotational displacement isolator was developed. It can meet the requirements of irrotational displacement and damp. An instance was given  coupled angle is less than 8?  it can satisfy the demand of aerial imaging. (2011) Trans Tech Publications.