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• 广州地球化学研究所 [1]
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• OAI收割 [14]
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• 天文技术与方法::自... [1]

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浏览/检索结果: 共15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 water probe for direct pH measurement of individual particles via micro-Raman spectroscopy 期刊论文  OAI收割 JOURNAL OF ENVIRONMENTAL SCIENCES, 2025, 卷号: 149, 页码: 200-208 作者:  Cui, Xiaoyu;  Tang, Mingjin;  Zhu, Tong   |  收藏  |  浏览/下载：12/0  |  提交时间：2024/09/12 Particle pH  Water probe  Standard spectral library  Micro-Raman spectroscopy  Direct measurement   Qualitative Study On Cable Breakage of Nb3Sn CICC Based On Direct Current Potential Drop Method 期刊论文  OAI收割 IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2021, 卷号: 31 作者:  Liu, Xiaochuan;  Qin, Jinggang;  Zhou, Chao;  Xu, Panpan;  Tian, Shuxia   |  收藏  |  浏览/下载：42/0  |  提交时间：2021/11/29 Cable breakage  Direct Current Potential Drop (DCPD)  Qualitative measurement  Nb3Sn CICC   Continuous estimation of leaf area index and the woody-to-total area ratio of two deciduous shrub canopies using fisheye webcams in a semiarid loessial region of China 期刊论文  OAI收割 ECOLOGICAL INDICATORS, 2021, 卷号: 125, 页码: 11 作者:  Niu, Xiaotao;  Fan, Jun;  Luo, Ruihua;  Fu, Wei   |  收藏  |  浏览/下载：29/0  |  提交时间：2021/06/10 Leaf area index  Woody-to-total area ratio  Fisheye webcam  LAI-2200  Direct measurement  Shrubs   Comparison of single-event transients of t-gate core and io device in 130nm partially depleted silicon-on-insulator technology 期刊论文  iSwitch采集 Ieice electronics express, 2016, 卷号: 13, 期号: 12, 页码: 11 作者:  Zheng Yunlong;  Dai Ruofan;  Chen Zhuojun;  Sun Shulong;  Wang Zheng 收藏  |  浏览/下载：47/0  |  提交时间：2019/05/09 Direct measurement  Heavy ion irradiation  Silicon on insulator technology  Single event transient  Mosfet  Radiation harden by design   A proposed direct measurement of cross section at Gamow window for key reaction 19F(p, a) 16 O in Asymptotic Giant Branch stars with a planned accelerator in CJPL 期刊论文  OAI收割 SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2016, 卷号: 59, 页码: 7 作者:  Yan, ShengQuan;  Hou, SuQing;  Jia, BaoLu;  Zhang, Tao;  Zhang, XiaoPeng   |  收藏  |  浏览/下载：48/0  |  提交时间：2018/05/31 Jinping Underground Nuclear Astrophysics laboratory (JUNA)  direct measurement  Gamow window  cross section  AGB star  nucleosynthesis   Progress of Jinping Underground laboratory for Nuclear Astrophysics (JUNA) 期刊论文  OAI收割 SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2016, 卷号: 59, 页码: 7 作者:  Liu, WeiPing;  Li, ZhiHong;  He, JiangJun;  Tang, XiaoDong;  Lian, Gang   |  收藏  |  浏览/下载：178/0  |  提交时间：2018/05/31 direct measurement  underground laboratory  Mg-25(p,gamma)Al-26  F-19(p,alpha)O-16  C-13(alpha,n)O-16 and C-12(alpha,gamma)O-16 reactions  Gamow window  JUNA   Preliminary Investigation on the Rapid and Direct AMS Measurement of I-129 in Environmental Samples without Chemical Separation 期刊论文  OAI收割 RADIOCARBON, 2016, 卷号: 58, 期号: 1, 页码: 147-156 作者:  Liu, Qi;  Hou, Xiaolin;  Zhao, Xiaolei;  Burr, George;  Zhou, Weijian   |  收藏  |  浏览/下载：23/0  |  提交时间：2018/10/29 Rapid And Direct Measurement  Accelerator Mass Spectrometry  I-129  Environmental Samples  Methodology   Position Measurement of the Direct Drive Motor of Large Aperture Telescope 会议论文  OAI收割 San Diego, California, USA, 2010-6-27 作者:  Wang Daxing;  Li Ying 收藏  |  浏览/下载：19/0  |  提交时间：2014/01/05 astronomy  large aperture telescope  direct drive  position measurement  SVPWM   Combination of skip-flat test with Ritchey-Common test for the large rectangular flat (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:  Zhang L.;  Xuan B.;  Zhang L. 收藏  |  浏览/下载：22/0  |  提交时间：2013/03/25 The Skip-Flat test and Ritchey-Common test are the well-known methods for large flat mirrors measurement. This paper describes the theories of two methods. The combination of the Skip-Flat test with Ritchey-Common test is proposed. Simulations and experiments of the combination method for testing the large rectangular flat of high aspect ratio are shown. The results of the combination test and direct measurement are presented. In comparison of the methods  the combination test is in good agreement with the direct measurement. 2010 Copyright SPIE - The International Society for Optical Engineering.   Modulation transfer function measurement of sampled imaging systems in field test (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 L.;  Zhang J.;  Zhang J.;  Zhang J.;  Wang J. 收藏  |  浏览/下载：27/0  |  提交时间：2013/03/25 A digital mirror device (DMD) based light projector was developed as the target generator in modulation transfer function (MTF) measurement. In order to overcome the sampling-scene phase effect in MTF measurement of sampled imaging systems  a method using random targets is introduced to yield a phase-averaged MTF. The main potential problem of implementing this method is the fact that the stationary assumption of the random targets may be vitiated in practical measurement  especially in field test due to the ill condition. We provide an efficient model-independent way of analyzing and isolating the spectral contents arising from these additional contributions to MTF measurement. Algorithms with adaptive parameter selection were also developed for spectral estimation of the test image in order to overcome the challenge brought by the size limit of the test matrices for one certain field of view derived from the isoplantic region. The MTF measurement of a CCD video imager is used to demonstrate the measurement technique and illustrate the benefits over other methods. In order to validate the results  comparisons have been made between MTF measurements of imager implemented using this method and bar target direct measurements. 2010 Copyright SPIE - The International Society for Optical Engineering.