中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
机构
采集方式
内容类型
发表日期
学科主题
筛选

浏览/检索结果: 共9条,第1-9条 帮助

条数/页: 排序方式:
Determination of ultra-low level Am-241 in soil and sediment using chemical separation and triple quadrupole inductively coupled plasma mass spectrometry measurement with He-NH3 as collision-reaction gas 期刊论文  OAI收割
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, 2021, 卷号: 178, 页码: 8
作者:  
Zhang, Weichao;  Zhang, Haitao;  Fang, Sui;  Hou, Xiaolin;  Zhang, Luyuan
  |  收藏  |  浏览/下载:32/0  |  提交时间:2021/05/21
Measurement of tropospheric HO2 radical using fluorescence assay by gas expansion with low interferences 期刊论文  OAI收割
JOURNAL OF ENVIRONMENTAL SCIENCES, 2021, 卷号: 99
作者:  
Wang, Yihui;  Hu, Renzhi;  Xie, Pinhua;  Chen, Hao;  Wang, Fengyang
  |  收藏  |  浏览/下载:30/0  |  提交时间:2020/12/28
First Year On-Orbit Calibration of the Chinese Environmental Trace Gas Monitoring Instrument Onboard GaoFen-5 期刊论文  OAI收割
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2020, 卷号: 58
作者:  
Zhao, MinJie;  Si, FuQi;  Wang, Yu;  Zhou, HaiJin;  Wang, ShiMei
  |  收藏  |  浏览/下载:57/0  |  提交时间:2020/12/28
Assessing environmental interference in northern China using a spatial distance model: From the perspective of geographic detection 期刊论文  OAI收割
SCIENCE OF THE TOTAL ENVIRONMENT, 2020, 卷号: 709, 页码: 16
作者:  
Wei, Wei;  Guo, Zecheng;  Zhou, Liang;  Xie, Binbin;  Zhou, Junju
  |  收藏  |  浏览/下载:35/0  |  提交时间:2020/05/19
Assessing environmental interference in northern China using a spatial distance model: From the perspective of geographic detection 期刊论文  OAI收割
SCIENCE OF THE TOTAL ENVIRONMENT, 2020, 卷号: 709, 页码: 16
作者:  
Wei, Wei;  Guo, Zecheng;  Zhou, Liang;  Xie, Binbin;  Zhou, Junju
  |  收藏  |  浏览/下载:17/0  |  提交时间:2020/05/19
Method for feature analysis and intelligent recognition of infrasound signals of soil landslides 期刊论文  OAI收割
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT, 2020, 页码: DOI: 10.1007/s10064-020-01982-w
作者:  
Liu Dunlong;  Tang Dan;  Zhang Shaojie;  Leng Xiaopeng;  Hu Kaiheng
  |  收藏  |  浏览/下载:21/0  |  提交时间:2020/11/18
Determination of ultra-low level plutonium isotopes (Pu-239,(240)pu) in environmental samples with high uranium 期刊论文  OAI收割
Talanta, 2018, 卷号: 187, 页码: 357-364
作者:  
Xing, S (Xing, Shan)[ 1,3 ];  Zhang, WC (Zhang, Weichao)[ 1 ];  Qiao, JX (Qiao, Jixin)[ 2 ];  Hou, XL (Hou, Xiaolin)[ 1,2 ]
  |  收藏  |  浏览/下载:58/0  |  提交时间:2018/11/20
Determination of ultra-low level plutonium isotopes (Pu-239,(240)pu) in environmental samples with high uranium 期刊论文  OAI收割
Talanta, 2018, 卷号: 187, 页码: 357-364
作者:  
Hou, XL (Hou, Xiaolin)[ 1,2 ];  Qiao, JX (Qiao, Jixin)[ 2 ];  Zhang, WC (Zhang, Weichao)[ 1 ];  Xing, S (Xing, Shan)[ 1,3 ]
  |  收藏  |  浏览/下载:63/0  |  提交时间:2018/11/21
Packaging technology of polymer/Si arrayed waveguide grating and their environmental stability (EI CONFERENCE) 会议论文  OAI收割
2005 6th International Conference on Electronics Packaging Technology, August 30, 2005 - September 2, 2005, Dameisha, Shenzhen, China
作者:  
Zhang Y.;  Zhang X.;  Zhang X.;  Zhang X.;  Wang F.
收藏  |  浏览/下载:28/0  |  提交时间:2013/03/25
Future optical communication systems will use more of the exceptional high bandwidth of optical fiber. Wavelength division multiplexing (WDM) systems are well suited to transport terabits of information via the fiber[1]. Multiplexers/ demultiplexers (MUX/DEMUX) are essential components for dense WDM systems. Several different kinds of multiplexer types have been developed in the past: (a) interference filters  (b) fiber gratings  and (c) planar lightwave circuit (PLC) MUX/DEMUXers[2  3]. The planar fabrication process of the last mentioned PLCs allows the realization of high performance filters with a large number of wavelength channels. Further  an integration with other optical elements seems to be possible. Arrayed waveguide gratings (AWG) are a special kind of PLC-MUX/DEMUXers  which are very attractive components for WDM systems because of their great flexibility in filter design[4  5]. Basically  an AWG is an optical spectrograph built in planar waveguide technique. Typically  AWGs works in a high grating order (50-250). For AWG multiplexer applications in communications systems a precise wavelength controllability and wavelength stability with long term is demanded. Recently  a polymeric (especially fluorinated polymer with low optical absorption loss in the infrared region) AWG has attracted much attention because of its easy fabrication  low cost possibility and a potential of integration with other polymer devices[6]. Standard AWGs  however  show a change of center wavelength with temperature. A method to prevent this temperature drift is to package the AWG together with a temperature controller in order to tune and fix the desired filter-wavelength. In this paper  a 32-channel AWG was fabricated using a cross-linkable fluorinated poly (ether ether ketone) (FPEEK)  its package technology and environmental stability were also discussed. 2005 IEEE.