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浏览/检索结果: 共10条，第1-10条 帮助 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 邻水上甲1号公馆房地产投资可行性研究 学位论文 2015, 2014 刘光文 收藏  |  浏览/下载：3/0  |  提交时间：2016/02/23 房地产  投资  可行性研究  real estate industry  investment  feasibility research   The Perceived Impact of E-Books on Student Reading Practices: A Local Study 期刊论文 College & Research Libraries, 2015, 卷号: Vol.76 No.4, 页码: 469-489 作者:  Fister,Barbara,;  Gilbert,Julie, 收藏  |  浏览/下载：4/0  |  提交时间：2019/12/30 Reading  Habits  Electronic  Publishing  Electronic  Libraries  Student  Research  Recreational  Reading  Use  Studies  Users  Usability  Feasibility  Studies  Program  Implementation  Library  Research  Library  Materials  Library  Development  Investigations  Academic  Libraries   Application of hyperosmotic agent to determine gastric cancer with optical coherence tomography ex vivo in mice 期刊论文 2010, 2010 Xiong, Honglian; Guo, Zhouyi; Zeng, Changchun; Wang, Like; He, Yonghong; Liu, Songhao 收藏  |  浏览/下载：3/0 Solving variational inequalities defined on a domain with infinitely many linear constraints 期刊论文 2010, 2010 Fang, Shu-Cherng; Wu, Soonyi; Birbil, S. Ilker 收藏  |  浏览/下载：2/0 Analysis of laser jamming to satellite-based detector (EI CONFERENCE) 会议论文 International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, June 17, 2009 - June 19, 2009, Beijing, China Wang S.-W.; Guo L.-H.; Guo R.-H. 收藏  |  浏览/下载：17/0  |  提交时间：2013/03/25 The reconnaissance satellite  communication satellite and navigation satellite used in the military applications have played more and more important role in the advanced technique wars and already become the significant support and aid system for military actions. With the development of all kinds of satellites  anti-satellite laser weapons emerge as the times require. The experiments and analyses of laser disturbing CCD (charge coupled detector) in near ground have been studied by many research groups  but their results are not suitable to the case that using laser disturbs the satellite-based detector. Because the distance between the satellite-based detector and the ground is very large  it is difficult to damage it directly. However the optical receive system of satellite detector has large optical gain  so laser disturbing satellite detector is possible. In order to determine its feasibility  the theoretical analyses and experimental study are carried out in the paper. Firstly  the influence factors of laser disturbing satellite detector are analyzed in detail  which including laser power density on the surface of the detector after long distance transmission  and laser power density threshold for disturbing etc. These factors are not only induced by the satellite orbit  but dependence on the following parameters: laser average power in the ground  laser beam quality  tracing and aiming precision and atmospheric transmission. A calculation model is developed by considering all factors which then the power density entering into the detector can be calculated. Secondly  the laser disturbing experiment is performed by using LD (laser diode) with the wavelength 808 nm disturbing CCD 5 kilometer away  which the disturbing threshold value is obtained as 3.5510-4mW/cm2 that coincides with other researcher's results. Finally  using the theoretical model  the energy density of laser on the photosensitive surface of MSTI-3 satellite detector is estimated as about 100mW/cm2  which is largely exceed the disturbing threshold and therefore verify the feasibility of using this kind of laser disturbing the satellite-based detector. According to the results. using the similar laser power density absolutely saturate the requirements to laser disturbing satellite-based detector. If considering the peak power of pulsed laser  even decrease laser average power  it is also possible to damage the detector. This result will provide the reliable evidences to evaluate the effect of laser disturbing satellite-based detector. 2009 SPIE.   Mental imagery knowledge representation mode of human-level intelligence system (EI CONFERENCE) 会议论文 4th International Conference on Rough Sets and Knowledge Technology, RSKT 2009, July 14, 2009 - July 16, 2009, Gold Coast, QLD, Australia Ke H.; Zhang D.; You W. 收藏  |  浏览/下载：22/0  |  提交时间：2013/03/25 For the human-level intelligence simulation we should simulate it from the essence of intelligence and with the research results of brain science  cognitive science  artificial intelligence and others. In our study  a mental imagery knowledge representation mode had been established based on cognitive mechanism of human. Two kinds of table named mental imagery concept attributes table and concept attribute value ranges table had been used together to represent mental imagery knowledge in system. Mental imagery concept attributes table which formed by the thought of concept lattice was used to decide relations among concepts and attributes under the circumstance of coarse granularity. While concept attribute value ranges table was used to record differences of individual objects belong to the same concept under the circumstance of fine granularity. The concrete structured method of tables and decision-making process of system were described in the paper. Finally  the validity and feasibility of the knowledge representation mode are illustrated with real examples. 2009 Springer Berlin Heidelberg.   Software design of electronics tests and data acquisition for a new gas detector 会议论文 Beijing, China, May 10, 2009 - May 15, 2009 作者:  Zhao, Dongxu;  Yue, Xiaobo;  Zhang, Hongyu;  Zhao, Yubin;  Chen, Yuanbo 收藏  |  浏览/下载：3/0  |  提交时间：2017/01/17 Software Prototyping  Computer Software  Electron Multipliers  Gas Detectors  Ionization Chambers  Mergers And Acquisitions  Neutron Sources  Resource Allocation  Software Design  Spalling  Superconducting Materials  Data Acquisition Electronics  Electronics  Electronics Test  Feasibility Studies  Gas Electron Multipliers  Multiwire Proportional Chamber  Research And Development  Spallation Neutron Sources   内部控制设计及可行性分析 ——基于中国联通公司的案例 学位论文 2008, 2007 庄瑞良 收藏  |  浏览/下载：2/0  |  提交时间：2016/02/14 内控设计  可行性  研究  internal control design  feasibility  research   内蒙古大青山生态旅游休闲度假项目可行性研究 学位论文 2008, 2008 高峰 收藏  |  浏览/下载：2/0  |  提交时间：2016/02/14 可行性研究  生态旅游  项目开发  Feasibility research  Ecotourism  project development   YX房产项目的投资可行性分析 学位论文 2007, 2005 周燕萍 收藏  |  浏览/下载：4/0  |  提交时间：2016/02/14 房地产投资  可行性研究  Real estate investment  Feasibility research