中国科学院机构知识库网格
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新烟碱类杀虫剂及其转化产物的高分辨质谱识别方法研究 学位论文  OAI收割
北京: 中国科学院大学;中国科学院生态环境研究中心, 2021
作者:  
李栋
  |  收藏  |  浏览/下载:161/0  |  提交时间:2022/06/15
Spatiotemporal Variation in Rainfall Erosivity and Correlation with the ENSO on the Tibetan Plateau since 1971 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 2021, 卷号: 364, 页码: -
作者:  
Cui, Bohao;  Zhang, Yili;  Liu, Linshan;  Xu, Zehua;  Wang, Zhaofeng
  |  收藏  |  浏览/下载:15/0  |  提交时间:2022/01/03
识别新型环境污染物的高分辨质谱分析方法研究 学位论文  OAI收割
北京: 中国科学院生态环境研究中心, 2019
作者:  
林泳峰
  |  收藏  |  浏览/下载:261/0  |  提交时间:2020/07/17
Development and Application of High Resolution Photoionization Time-of-Flight Mass Spectrometer for Online Monitoring of Catalytic Processes 期刊论文  OAI收割
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY, 2015, 卷号: 43, 期号: 10, 页码: 1531-1537
作者:  
Li Qing-Yun;  Hua Lei;  Jiang Ji-Chun;  Hou Ke-Yong;  Qi Ya-Chen
  |  收藏  |  浏览/下载:22/0  |  提交时间:2019/06/20
Simulation and experiment of the static FTIR based on micro multi-step mirrors (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Sensor and Micromachined Optical Device Technologies, May 24, 2011 - May 26, 2011, Beijing, China
作者:  
Liang Z.-Z.;  Zhang J.;  Zhang J.;  Zhang J.;  Zhu W.-B.
收藏  |  浏览/下载:33/0  |  提交时间:2013/03/25
In recent years  Fourier transform spectrometer (FTS) with small size and low mass is required in many applications with growing need for real-time and small platform spectral detection. In this paper  a micro Fourier transform infrared spectrometer (FTIR) based on spatial modulation mode was designed. This spectrometer has the advantages of high stability and simplified configuration. It also promises optical path differences (OPD) with high precision  as MOEMS technology is used in manufacturing the key components. The simulation and the experiments with regard to this FTIR configuration have been done. Firstly  the diffraction effect of the micro multi-step mirrors (MMSMs) is studied. We discuss the influence to the reversed spectrum by different mirror widths and different diffraction distances. Secondly  we simulate and analyze the influence of the source solid angle to the spectral resolution. Thirdly  we set up the theoretical model of the collimation error which is mainly from the defocus of the optical system and analyze the result caused by the collimation error. Fourthly  a new discrete Fourier transform arithmetic using least-squares cosines progression (LSCP) is proposed which can reconstruct the spectrum with nonuniform sampled signals. Finally  the MMSMs are fabricated used the MOEMS technology and the structural parameters are tested. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).  
Polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) in surface sediment and bivalve from the Changjiang Estuary, China 期刊论文  OAI收割
CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY, 2008, 卷号: 26, 期号: 1, 页码: 35-44
作者:  
Wen Sheng;  Hui Yang;  Yang Fangxing;  Liu Zhengtao;  Xu Ying
收藏  |  浏览/下载:70/5  |  提交时间:2010/10/13