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浏览/检索结果: 共8条，第1-8条 帮助 限定条件 内容类型：会议论文     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Optimization of focusing position in laser induced breakdown spectroscopy system based on quantitative analysis internal standard method of steel 会议论文 Kunming, China, 2021-12-07 作者:  Li, Zhicong;  Yang, Jianfeng;  Wang, Zhiyuan;  Zhao, Yiyi;  Huang, Shuaidong 收藏  |  浏览/下载：34/0  |  提交时间：2022/04/27 Laser induced breakdown spectroscopy(LIBS)  Quantitative analysis  Focus position  Detection sensitivity  Limit of detection(LOD)   A photometric method for organophosphorus pesticide detection based on microfluidic chip 会议论文 3rd Asia-Pacific Conference on Engineering Technology (APCET), 2015-01-01 作者:  Yang, N.[1];  Mao, H.[2];  Sun, J.[3];  Xiang, C.[4];  Xu, P.[5] 收藏  |  浏览/下载：2/0  |  提交时间：2019/12/24 Microfluidic chip  water pesticide contamination  photometric detection  detection limit   A photometric method for organophosphorus pesticide detection based on microfluidic chip 会议论文 BULGARIAN CHEMICAL COMMUNICATIONS, 2015-01-01 作者:  Yang, N.[1];  Mao, H.[2];  Sun, J.[3];  Xiang, C.[4];  Xu, P.[5] 收藏  |  浏览/下载：3/0  |  提交时间：2019/12/24 Microfluidic chip  water pesticide contamination  photometric detection  detection limit   Performance of Accelerator Mass Spectrometry for I-129 using AgI-AgCl carrier-free coprecipitation 会议论文 作者:  Zhang, Luyuan;  Hou, Xiaolin;  Zhou, Weijian;  Chen, Ning;  Liu, Qi 收藏  |  浏览/下载：5/0  |  提交时间：2019/12/10 Detection limit  AMS  Minimum sample amount  Iodine-129  Carrier free coprecipitation   Study on the detection sensitivity of APS star tracker (EI CONFERENCE) 会议论文 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, July 8, 2007 - July 12, 2007, Chengdu, China Li J.; Liu J.; Li G. 收藏  |  浏览/下载：22/0  |  提交时间：2013/03/25 Detection sensitivity is an important parameter of star tracker  which can express detection limit of the weakest detected visual star magnitude. Detection sensitivity of APS star tracker is related to APS parameters  optical system aperture and lens permeance rate  SNR  and so on. This paper  the expressions of APS star detected signal and APS noise are given  so signal-noise ratio (SNR) of star tracker can be obtained. And based on the theory inspecting signal from noise and optimal SNR threshold detection principle  the detection sensitivity model can be obtained. The corresponding APS star tracker detection limit is obtain based on APS IBIS5 and general optical system parameter design. When SNR threshold is 8.1 which can obtain 99.9% detection probability  we can calculate that the detection sensitivity is 6.5 visual magnitude.   The Information acquirement of hyperspectral detection system with harmonic diffractive element in infrared dual band (EI CONFERENCE) 会议论文 ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China Qiang S.; Hu X.; Zhang Y.; Gao Y. 收藏  |  浏览/下载：17/0  |  提交时间：2013/03/25 A novel design of combination of hybrid system and zoom system in hyperspectral detection imaging is discribed based on the application of harmonic diffractive element (HDE) compared with conventional system. The principles of HDE and infrared zoom hyspectral detection system are presented and the results of a example design are given. It is show that the resolution of this hybrid system is improved and the light power received by Cassegrain system is enlarged. Wavefront aberrations are less than 1/4 wavelength and Modulation Transfer Function in the dual band on each zoom focus location approaches or attains the diffraction limit on 20 cycles/mm.   A study of interaction between FITC- labeled antibody and optical fiber surface (EI CONFERENCE) 会议论文 ICO20: Materials and Nanostructures, August 21, 2005 - August 26, 2005, Changchun, China Chao K. F.; Zhang Y. L.; Kong X. G.; Zeng Q. H.; Liu R. L.; Wang X.; Feng L. Y.; Sun Y. J. 收藏  |  浏览/下载：33/0  |  提交时间：2013/03/25 The immobilization of antibodies on solid surface has been widely studied in elucidating immunoassay and in developing immunosensor. In this paper  FITC-labeled goat anti-human IgG were covalently immobilized on 3-aminopropyltriethoxysilane (APTES) and glutaraldehyde (Glu) to modify the distal end of a fiber-optic probe. The higher density and stability of FITC-labeled goat anti-human IgG could be obtained on the fiber surface modified with APTES-Glu than that on the non-modified fiber surface by evanescent excited fluorescence spectroscopy. Furthermore  red shift of the FITC fluorescence dye emission peak was observed on different fiber surface  exhibiting different interaction between FITC- labeled antibody and surface. Finally  under these conditions antigen-antibody reaction was investigated as an immunosensor. Detection limit of the evanescent wave optic-fiber biosensor is 10ng/ml.   Structure Design of Climbing Snake-like Robot for Detection of cable-stayed bridge (CPCI-S收录) 会议论文 ADVANCED MATERIALS, MECHANICS AND INDUSTRIAL ENGINEERING 作者:  Wei Wu[1];  Yu Junxia[1];  Lin Weihe[1];  Mai Risheng[1];  Chen Chunxu[1] 收藏  |  浏览/下载：1/0  |  提交时间：2019/04/12 climbing snake-like robot  cable automatic detection  modular design and realization  closed-loop motion controlling  torque limit  onboard battery