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AUTOTESTCON '96, jointly sponsored by AESS and the Instrumentation and Measurement Society (I&MS), was held September 16-19 in Dayton, OH, the birthplace of aviation. As the largest test conference, it provides a valuable forum for the exchange of information relating to automatic test systems (ATS). The conference has continued to grow both in attendance and in exhibition space. This year's conference emphasized improving test system effectiveness in the presence of exploding computer technology and the changing military and commercial environment. The impact of DoD acquisition reform on test was also examined  相似文献   

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推重比15一级发动机关键技术及分析   总被引:3,自引:0,他引:3       下载免费PDF全文
全面阐述和分析了推重比15一级涡扇发动机总体、风扇和压气机、燃烧室、涡轮、加力燃烧室、喷管等设计技术。  相似文献   

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推重比15一级发动机关键技术及分析   总被引:1,自引:0,他引:1       下载免费PDF全文
围绕下一代窄体客机发动机,介绍了目前国外飞机和发动机生产商方案选择的一些思路,叙述了传统涡扇发动机、齿轮传动涡扇发动机和开式转子发动机的最新进展,预测了发展趋势。  相似文献   

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Thirty eight radar experts contribute to this edition, which includes six completely new chapters on the following topics: ground penetrating radar; remote sensing with radar on satellites; multifunctional radar systems for fighter aircraft (MFAR); digital signal processing for radar; civil marine radar; and propagation. Each chapter contains references, ranging from 10 to 197, with a median of 71. The index runs 18 pages printed in double columns, but is not necessarily complete. Some topics, such as MIMO radar and long range radars to track satellites and ballistic missiles, will have to wait for a 4th edition. This text is the most authoritative, broadest, and deepest single volume on radar. The emphasis is on real world performance and real hardware that has been tested and works successfully in the real world, and the physics relevant to radar systems, as well as radar system engineering cost tradeoffs.  相似文献   

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首都机场2号航站楼三楼的黄金位置,如今已被加拿大连锁品牌百怡咖啡占据.茅于轼一定还记得2001年7月27日在此处的遭遇.那天下午2时许,这位中国著名经济学家就在这里对着一杯要价88元的咖啡"发飙"了,"设备一般,座位比较拥挤,环境相当嘈杂",竟然"收费标准却超过首都五星级宾馆两倍以上".  相似文献   

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We see neutron stars principally by their radio and X-ray emission. Their appearance in these different bands depends on whether the emission comes from the surface or its magnetosphere. New phenomena continue to be found from neutron stars, which makes it an exciting and topical research area. This volume is a collection of the papers from a NATO Advanced Study Institute held in Italy in October 1996. Many, and for me the most interesting ones, are substantial reviews on topics such as Pulsar magnetic fields and glitches (M. Ruderman), Radio pulsar population properties (D. Lorimer), Gamma-ray emission from CGRO pulsars (G. Kanbach), Neutron stars and black holes in X-ray binaries (J. van Paradijs), Kilohertz quasi-periodic oscillations in low-mass X-ray binaries (M. van der Klis), Thermonuclear burning on rapidly accreting neutron stars (L. Bildsten), On the X-ray emission properties of rotation powered pulsars (W. Becker and J. Truemper). It will serve as a useful reference and source book for students in high energy astrophysics and related fields. The high price may deter its purchase by individuals, but it will be a good volume for a library needing recent coverage on neutron stars. It does not of course include the most recent developments on anomalous X-ray pulsars or magnetars. This revised version was published online in August 2006 with corrections to the Cover Date.  相似文献   

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