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• OAI收割 [14]

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• 期刊论文 [9]
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• Physics [2]
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浏览/检索结果: 共14条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 A Legendre spectral element method with optimal mass matrix for seismic wave modeling 期刊论文  OAI收割 CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2022, 卷号: 65, 期号: 12, 页码: 4802-4815 作者:  Liu ShaoLin;  Yang DingHui;  Meng XueLi;  Wang WenShuai;  Xu XiWei   |  收藏  |  浏览/下载：25/0  |  提交时间：2023/03/31 Numerical simulation  Spectral element method  Mass matrix  Numerical accuracy   A feasible strategy to improve confident elemental composition determination of compounds in complex organic mixture such as natural organic matter by FTICR-MS without internal calibration 期刊论文  OAI收割 SCIENCE OF THE TOTAL ENVIRONMENT, 2021, 卷号: 751, 页码: - 作者:  Cao, Dong;  Hao, Zhineng;  Hu, Ming;  Geng, Fanglan;  Rao, Ziyu   |  收藏  |  浏览/下载：11/0  |  提交时间：2021/12/22 Spectral accuracy  Mass accuracy  FTICR-MS  Complex organic mixture  Natural organic matter   A re-assessment of nickel-doping method in iron isotope analysis on rock samples using multi-collector inductively coupled plasma mass spectrometry CNKI期刊论文  OAI收割 2020 作者:  Hongmei Gong;  Pengyuan Guo;  Shuo Chen;  Meng Duan;  Pu Sun   |  收藏  |  浏览/下载：7/0  |  提交时间：2024/12/18 Fe isotope  Ni-doping  Stable isotope  Precision and accuracy  Mass bias correction  Pseudo-high mass resolution   Strategies for structure elucidation of small molecules using gas chromatography-mass spectrometric data 期刊论文  OAI收割 trac-trends in analytical chemistry, 2013, 卷号: 47, 页码: 37-46 作者:  Zhang, Liangxiao;  Tang, Chunlan;  Cao, Dongsheng;  Zeng, Yingxu;  Tan, Binbin 收藏  |  浏览/下载：42/0  |  提交时间：2014/09/11 Gas chromatography coupled to mass spectrometry (GC-MS)  Data mining  Identification accuracy  Information extraction  Mass spectral characteristics  Mass spectral transfer  Multivariate analysis  Retention index (RI)  Small molecule  Structure elucidation   The application of digital signal processing (DSP) for the real time solving of artillery fire control exterior trajectory (EI CONFERENCE) 会议论文  OAI收割 2012 IEEE 3rd International Conference on Software Engineering and Service Science, ICSESS 2012, June 22, 2012 - June 24, 2012, Beijing, China 作者:  Li D. 收藏  |  浏览/下载：141/0  |  提交时间：2013/03/25 Method of gain firing data by calculate the group of differential equation has the advantages of high repeatability and high accuracy  But much of the CPU time is occupied by the task of re-iteration in computational processing. Therefore  it is not the real time processing. This paper introduces a method to quickly determine angle of firing by iteration method  which realizes Runge-Kutta method for the equations of exterior ballistic according to the model of mass center motion of projectile. Moreover  it also provides the flow of real-time integral solution and be proved by the simulation of MATLAB. Its accuracy satisfies the requirements. This work can be as reference for the design of opt-electrical fire control system and the demonstration work. 2012 IEEE.   Design and experimental research of a new type focus mechanism used in space-based telescope (EI CONFERENCE) 会议论文  OAI收割 2012 9th IEEE International Conference on Mechatronics and Automation, ICMA 2012, August 5, 2012 - August 8, 2012, Chengdu, China 作者:  Wang D. 收藏  |  浏览/下载：37/0  |  提交时间：2013/03/25 The position of focal plane will be changed because of temperature fluctuation and vacuum environment. In order to make the telescope work well  positioning accuracy of the mechanism is 0.008mm. The performance satisfies the need of precision  a focusing mechanism is needed. To majority of large space-based telescopes  and the scheme design is reasonable and practicable. 2012 IEEE.  the general way to do this would be to use a reflector  which was located in the backfocal distance. One of typical schemes of this mechanism was introduced  however  because of the big axial size  the mechanism can't be used when the size of the enclosure was limited. A new type of focusing mechanism was introduced  which has such advantages of small size  high accuracy and low mass. The design and test methods had been discussed. According to the results  the repeatability positioning accuracy is 0.0025mm   Design and optimization of supporting structure for scanning mirror in aviation remote sensor (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:  Yang H. 收藏  |  浏览/下载：30/0  |  提交时间：2013/03/25 An optical supporting structure is studied to improve its structure stiffness and reduce the rotate error to meet the requirement of aviation remote sensor. A formula to calculate fundamental frequency is proposed using Rayleigh-Ritz method  and a method of is analyzed. By means of OPTISTRUCT software  the maximum fundamental frequency is converted to object function  the deformation under the gravity and the mass are assigned to state variable  wall thicknesses of the structure are converted to design variables. The analysis and test results indicate that the fundamental frequency of designed optical supporting structure has been improved 37.2 Hz from 96.9 Hz  which guarantee the reliability of the sweep mechanism  and the rotate error is 4.89  which is satisfied for the rotate accuracy in plunge angle. The method of optimization has a certain instructional significance for the design of supporting structures in aviation remote sensor. 2011 IEEE.   The lightweight design of the inner framework of the opto-electronic stabilization platform based on finite element analysis (EI CONFERENCE) 会议论文  OAI收割 2011 IEEE 18th International Conference on Industrial Engineering and Engineering Management, IE and EM 2011, September 3, 2011 - September 5, 2011, Changchun, China Zou Q.; Ma H.-L.; Hu Y.; Ding J.-W. 收藏  |  浏览/下载：28/0  |  提交时间：2013/03/25 The airborne opto-electronic stabilization platform should have the characteristics of high requirements for stability  tracking accuracy and lightweight. In order to verify the rationality of the main load-bearing structure  the inner-gimbal  finite element analysis was performed. Because of the poor working conditions of the airborne opto-electronic stabilization platform and the wide range of working temperature variation  -45 C 60 C  according to the actual working environment  air-resistance and temperature were added to the loads of the inner-gimbal in analysis. What's more  based on the analysis results  lightweight design was performed to the initial model and 64.37% of mass was decreased. The remarkable effect was obtained. This research is going to be instructive to design and production of the airborne opto-electronic stabilization platform in the future. 2011 IEEE.   Study of the data taking strategy for a high precision τ mass measurement 期刊论文  OAI收割 中国物理C, 2009, 期号: 7, 页码: 501-507 作者:  Wang YK(王由凯);  Zhang JY(张建勇);  Mo XH(莫晓虎);  Yuan ZZ(苑长征) 收藏  |  浏览/下载：9/0  |  提交时间：2015/12/21 τ mass  statistical optimization  luminosity and accuracy   Study of the data taking strategy for a high precision tau mass measurement 期刊论文  OAI收割 CHINESE PHYSICS C, 2009, 卷号: 33, 期号: 7, 页码: 501-507 作者:  Wang YK(王友凯);  Zhang JY(张建勇);  Mo XH(莫晓虎);  Yuan ZZ(苑长征);  Wang, YK 收藏  |  浏览/下载：29/0  |  提交时间：2016/06/28 tau mass  statistical optimization  luminosity and accuracy