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DATS—2型空中靶标系统
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作者 《中国航天》 1981年第3期61-81,共21页
导言目标系统可以用来测试和鉴定武器系统,并可在实战条件下培训武器系统的操纵人员。目标系统还可以在一个自然的环境中通过提供真实的目标来模拟敌人的威胁,而这一点是培训模拟设备无法做到的。道尼尔公司研制了一系列以 DATS 为标号... 导言目标系统可以用来测试和鉴定武器系统,并可在实战条件下培训武器系统的操纵人员。目标系统还可以在一个自然的环境中通过提供真实的目标来模拟敌人的威胁,而这一点是培训模拟设备无法做到的。道尼尔公司研制了一系列以 DATS 为标号的空靶系统,供不同的防空武器系统使用。它们都是可以用有人或无人驾驶飞机做为牵引工具拖曳的拖靶为基础研制的。目标用相当长的牵引索与飞机相连。由于靶标是供被射击用的,可能被击中摧毁,所以这些靶标在设计时必须十分重视成本效果。 展开更多
关键词 靶标 发射架 牵引索 MDI 发射装置 曳引钢丝绳 显示器装置 探测器 DATS
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Plasma display panel with micro-discharge array
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作者 JIANG Chao WANG You-qing 《Optoelectronics Letters》 EI 2005年第3期175-178,共4页
A novel discharge device is designed on the basis of the configuration of micro-hollow cathode discharge (MHCD). By using many MHCDs in parallel connection, a micro-discharge array can be constructed. With the micro... A novel discharge device is designed on the basis of the configuration of micro-hollow cathode discharge (MHCD). By using many MHCDs in parallel connection, a micro-discharge array can be constructed. With the micro-discharge array, a high-pressure high-current density glow discharge plasmas can be formed to make a plasma display panel (PDP). An air discharge experiment is finished with the discharge device. The stable direct current glow discharge is formed under the pressure from 20 Torr to 500 Torr. The voltage-current characteristic curve and the discharge photograph are noted. The voltage-current characteristic curve has a positive differential resistance coefficient on the whole discharge range. The estimated current density reaches 70.1A/cm^3, the power density is 3.6×10^4 W/cm^3, and the electron density is in the order of 10^13 cm^-3 at p = 200 Torr and ID = 10 mA. The experimental results indicate that the desiclned discharqe device is appropriate for PDP. 展开更多
关键词 等离子显示器 面板 放电装置 驱动程序
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AH-64和RAH-66直升机共享先进技术
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作者 黎勇 《世界直升机信息》 2002年第4期88-88,共1页
关键词 RAH-66直升机 AH-64直升机 前视红外系统 “箭头”系统 目标电子显示器与控制装置
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Efficient page layout analysis on small devices
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作者 Eun-jung HAN Chee-onn WONG +2 位作者 Kee-chul JUNG Kyung-ho LEE Eun-yi KIM 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2009年第6期800-804,共5页
Previously we have designed and implemented new image browsing facilities to support effective offiine image contents on mobile devices with limited capabilities: low bandwidth, small display, and slow processing. In... Previously we have designed and implemented new image browsing facilities to support effective offiine image contents on mobile devices with limited capabilities: low bandwidth, small display, and slow processing. In this letter, we fulfill the automatic production of cartoon contents fitting small-screen display, and introduce a clustering method useful for various types of cartoon images as a prerequisite stage for preserving semantic meaning. The usage of neural networks is to properly cut the various forms of pages. Texture information that is useful for grayscale image segmentation gives us a good clue for page layout analysis using the multilayer perceptron (MLP) based x-y recursive algorithm. We also automatically frame the segment MLP using agglomerative segmentation. Our experimental results show that the combined approaches yield good results of segmentation for several cartoons. 展开更多
关键词 Efficient page layout analysis MLP-based segmentation Mobile devices Image segmentation Neural network
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