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基于K-TOOLS的信息领航系统的研究
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作者 王瑶 李明 马慧卿 《哈尔滨师范大学自然科学学报》 CAS 2013年第6期34-36,共3页
研究基于K-TOOLS的信息领航系统的前景以及此领航系统与其他信息领航系统之间的竞争优势与开发此领航系统的必要性.
关键词 JAVA技术 市场分析 竞争优势 开发风险 信息领航系统
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轰六飞机二代领航系统导航精度测试
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作者 任兰生 程永宁 《航空计算技术》 1992年第2期34-38,共5页
本文介绍了轰六飞机二代领航系统导航精度测试设备及测试方法,描述了测试机计算公式及软、硬件设计。文中介绍的测试设备及方法已成功地用于空军第三研究所研制的 SY-4单片机领航仪定型试飞精度测试。
关键词 飞机 领航系统 导航 精度
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GPS定位信号的一种生成方法
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作者 程文聪 熊家军 《空军雷达学院学报》 2005年第4期37-39,42,共4页
为了满足测试某型机载GPS辅助领航系统的需要,基于VC++6.0开发环境,通过实现大地经纬度坐标与平面直角坐标间的相互转换等算法,给出了一种GPS数据模拟生成方法.实际使用结果表明,该方法能够较好地满足使用需要.
关键词 全球定位系统 坐标转换 领航系统
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Marine Accident Analysis with GIS 被引量:1
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作者 Ozkan Ugurlu Umut Yddlrlm Ercan Yuksekylldlz3 《Journal of Shipping and Ocean Engineering》 2013年第1期21-29,共9页
In this study, marine casualties which are recorded Global Integrated Shipping Information System (GISIS) in 2007-2011, result in death, injury, economic loss and environmental pollution are discussed. The studied t... In this study, marine casualties which are recorded Global Integrated Shipping Information System (GISIS) in 2007-2011, result in death, injury, economic loss and environmental pollution are discussed. The studied types of ships are container, bulk dry, general cargo, roro, ropax, passenger and tankers. The information contained in GISIS system is textual format and it is difficult to systematically analyze this information. For this reason, by creating a new data base, which is Microsoft Excel-based, ship accidents are classified according to name, flag state and type of ship, type, size and coordinates of the accidents that are evaluated by entering the Geographical Information System(GIS). In the study, all marine areas having been separated into ranges in ArcGIS 10 program, the marine areas with intensive marine accidents have been determined and marine accident chart has been created. As a result of the study, high risk marine areas are Strait of Dover and Hamburg in the North Europe, Belfast Shores in Ireland, the seas surrounding Great Belt, Kattegat and Copenhagen in Baltic Sea, In far east, Kanmon Strait, Urage Channel and Bungo Strait in Japan, Shanghai, Ningbo and Hong Kong in China. 展开更多
关键词 Marine accidents maritime transportation GIS.
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Three-dimensional bio-printing 被引量:12
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作者 GU Qi HAO Jie +3 位作者 LU YangJie WANG Liu WALLACE Gordon G. ZHOU Qi 《Science China(Life Sciences)》 SCIE CAS CSCD 2015年第5期411-419,共9页
Three-dimensional(3D) printing technology has been widely used in various manufacturing operations including automotive, defence and space industries. 3D printing has the advantages of personalization, flexibility and... Three-dimensional(3D) printing technology has been widely used in various manufacturing operations including automotive, defence and space industries. 3D printing has the advantages of personalization, flexibility and high resolution, and is therefore becoming increasingly visible in the high-tech fields. Three-dimensional bio-printing technology also holds promise for future use in medical applications. At present 3D bio-printing is mainly used for simulating and reconstructing some hard tissues or for preparing drug-delivery systems in the medical area. The fabrication of 3D structures with living cells and bioactive moieties spatially distributed throughout will be realisable. Fabrication of complex tissues and organs is still at the exploratory stage. This review summarize the development of 3D bio-printing and its potential in medical applications, as well as discussing the current challenges faced by 3D bio-printing. 展开更多
关键词 3D bin-printing CELL FUNCTION FABRICATION
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