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7篇 您的检索式:作者名="Lockheed Martin"
    题名 作者 年代 出处 被引量
1BAE Systems Protest USAF' s C-130 AMP Contract Award显示文摘M Selinger Lockheed Martin 2004Aerospace Daily & Defense Report2004,212,9:1
2The thermal benefits of diamond enhanced plastic packages for microwave applications显示文摘Sanders A Lockheed Martin Co 1998IEEE1998,,:1
3战斗机流行戴肚兜显示文摘A-10的鱼雷肚兜 大名鼎鼎的B-52轰炸机这会儿正热情地招呼着它的老哥们——有着炫酷外形的A-10战斗机。不过B-52总觉得A-10今天好像有些异样——这哥们儿的肚子上居然戴着一个“迷你肚兜”!长空 Lockheed Martin 2010小哥白尼(趣味科学)2010,,9:0
4A Filament-Associated Halo Coronal Mass Ejection显示文摘There are only a few observations published so far that show the initiation of a coronal mass ejection (CME) and illustrate the magnetic changes in the surface origin of a CME. Any attempt to connect a CME with its local solar activities is meaningful. In this paper we present a clear instance of a halo CME initiation. A careful analysis of magnetograms shows that the only obvious magnetic changes in the surface region of the CME is a magnetic flux cancellation underneath a quiescent filament. The early disturbance was seen as the slow upward motion in segments of the quiescent filament. Four hours later, the filament was accelerated to about 50 km s-1 and erupted. While a small part of the material in the filament was ejected into the upper corona, most of the mass was transported to a nearby region. About forty minutes later, the transported mass was also ejected partially to the upper corona. The eruption of the filament triggered a two-ribbon flare, with post-flare loops connecting the flare ribbons. A halo CME, which is inferred to be associated with the eruptive filament, was observed from LASCO/C2 and C3. The halo CME contained two CME events, each event corresponded to a partial mass ejection of the filament. We suggest that the magnetic reconnection at the lower atmosphere is responsible for the filament eruption and the halo CME.Jun Zhang, Jingxiu Wang, and Nariaki Nitta ( Beijing Astronomical Observatory, National Astronomical Observatories,Chinese Academy of Sciences, Beijing 100012 Lockheed Martin Solar and Astrophysics Laboratory, Palo Alto, CA 94304, USA) 2001Chinese Journal of Astronomy and Astrophysics2001,1,1:0
5王牌战机接班人F-35显示文摘F-16老了,已经没有了昔日叱咤风云的辉煌,是该有人接它的班了,于是F-35闪亮登场。F-35到底有多厉害呢?嗯……就是非常非常厉害!(一堆鸡蛋、西红柿扔了过来。)别、别、别!我说还不行嘛! F-16属于第三代战斗机,而F-35属于第四代战斗机。要知道,差一代,那性能可是天差地别。阿元 Lockheed Martin 2007小哥白尼(趣味科学)2007,,5:0
6让子弹拐个弯儿显示文摘俗话说:子弹不长眼!可随着科技的突飞猛进,越来越多的俗话变成了笑话。子弹'长眼睛'可绕弯歼敌2014年7月,美国国防部高级研究计划局(DARPA)宣布,他们的极度精确武器项目——代号为'EXACTO'的全球首款'长眼睛'的智能子弹,近日成功完成了首次实战测试!它拥有'自我制导能力',能准确地消灭隐藏在远处的敌方狙击手。从美方发布的测试录像看,枪手朝着远离目标的位置开枪,'智能子弹'出膛后先是沿着曲线运行一大圈。浩克 Lockheed Martin 2014小哥白尼(趣味科学)2014,0,12:0
7五步变身钢铁侠显示文摘提到钢铁侠,人们首先想到他那一身高科技的盔甲.一开始,主人公唐尼设计的这副盔甲是灰色的,十分笨重,飞到高空居然被冻住了.经过改造,他将普通金属换成了金钛合金,并漆成了跑车的红色. 后来经过不断改进,盔甲的体积进一步变小,外形更流畅,颜色也逐渐变成了金色与暗红色相间.而盔甲表面的超强金钛合金,则为唐尼的身体提供了更加坚固又有韧性的保护,即使是受到最先进、最具威力的武器的攻击,也不会受到任何伤害.真真 Lockheed Martin Iron Man 2014小学时代2014,,1:0
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