保定市公安、武警、民兵军事训练剪影

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“倒骑王”传奇

中国第一。世界第一。 挑战。突破。悬念。 惊心动魄。非凡瞬间。 2001年6月16日上午11时。 精美、雄伟、奇绝的塞外金山岭长城。喧天锣鼓,缤纷彩旗。 京城内外多家媒体汇聚,四面八方5万余名观众云集。 人们瞪大双眼,翘首期待,期待“倒骑王”于顺业那精彩绝伦的飞腾。     

美国军服女士兵系列

A．工作夹克衫政府发放:蓝色,斜口袋。袖口带钮扣, 前襟拉链。50％棉/50％涤纶。防水。100％尼龙织羊毛衬里。机洗。号码:6-22S-R-L。军帽:烟囱形。政府发放。蓝色。全精纺羊毛。机洗。通用型号。     

女士兵系列

A．蓝色礼服(配裤) 上衣:政府发放。蓝色。单排扣。60%涤纶／40%羊毛(热区)。全人造丝线缝。干洗。号码:6-16,18,20,22S-R-L。男售:饰带,等级臂章,军种条纹。配裤:政府发放。前裤腰表袋。侧拉链。未摺边。号码:6S＆R,7-16,18,20S-R-L, 22 R&L。领结:政府发放。黑色蝴蝶结,可调围颈带。55％涤纶/45%羊毛。机洗。     

士兵月令

1月。萧瑟的营盘揉入几许特别的色味: 新绿的军衣,褶皱的布面,还有一股洗不去的樟脑丸味。总是有雪,白的向下挥洒,是天上雪;绿的向前奔涌,是新兵雪。战友。队列。拉歌。站岗。授衔。紧急集合。人生中诸多的崭新元素在这个月份诞生。成班成排成连的合格士兵在这所大学校里成批量地出炉。     

颂“霓虹灯下新水兵”

新水兵，不一般。卫明珠，浦江畔。 都市里，尘不染。拒诱惑，身不沾。 躬身行，十余年。扬传统，敢创先。 与时进，不简单。     

基本平衡

二次大战末,对两个非军事目标——日本的广岛和长崎,投下了两颗原子弹,从而结束了战争。当时每颗原子弹的当量约为二万吨。广岛总人口为二十五万六千人,六万八千人死亡,七万六千人受伤。长崎总人口为十七万三千八百人,三万八千人死亡,二万一千人受伤。 在西欧没有投原子弹。但是包括失踪的人在内,苏联损失一千三百六十万人。德国、奥地利大约损失八百五十万日耳曼人。日本伤亡一百二十万。法国则为三十四万人。意大利三十三万人。英国三十二万六千人。波兰三十二万人。捷克斯洛伐克四十一万人。而美国则伤亡了二十五万九千人。     

取名的艺术

一、叠字法。即姓和名为叠字。例：石磊、金鑫、林森。 二、偏旁法。即姓和名用同一偏旁的字。例：徐行、赵超、蒋芳。 三、对比法。即姓和名用一对反义或对衬的字。例：张驰、曲直、方圆。     

世界各国开办电视台时间

世界各国开办电视台时间英国１９３６年,世界上最早开办国。法国１９３８年开办。美国１９３９年开办。１９４５年在世界上最早开办彩色电视节目。现有电视台１２００多座。苏联１９３９年开办。１９６７年开办彩色。联邦德国１９５０年筹备,１９５１年播出。日本１９５...     

柳生

柳生是列兵。柳生下连队时,文书刚被教导员“挖”走。柳生凭一手抒情的楷体,把被包打进了连部。交接班。柳生接过文书手中的钥匙,手心冒汗。激动。柳生想。柳生偷偷数了数那串钥匙,19把。     

On a search for a moving target

We consider the problem of searching for a target that moves in discrete time and space according to some Markovian process. At each time, a searcher attempts to detect the target. If the searcher's action at each time is such as to maximize his chances of immediate detection, we call his strategy “myopic.” We provide a computationally useful necessary condition for optimality, and use it to provide an example wherein the myopic strategy is not optimal.     

谈核电站火灾自动报警系统的特殊配置

结合核电站火灾危险的特殊性,阐述了核电站常规岛中网控楼、蓄电池室、汽轮机厂房、电缆隧道、输变电变压器等建筑的火灾自动报警系统设备的特殊配置及选用特点,以发挥火灾自动报警系统的监控作用。     

Between a rock and a hard place: Europe in a post-INF world

The end of the 1987 Intermediate-range Nuclear Forces (INF) Treaty has the potential to plunge Europe and NATO into deep crisis. Russia’s continued violation coupled with the Donald J. Trump administration’s desire to balance against Moscow and Beijing could force a new missile debate on Europeans. Even though Washington is trying to assuage its allies, the specter of another round of INF missile deployments to Europe is not unrealistic. Meanwhile, NATO’s European members face a dilemma. Some want NATO to resolutely push back against Russia. Others want to avoid a new deployment debate, at almost all costs. The Kremlin will use these cleavages to weaken NATO. If not carefully handled, NATO’s response to the Russian missile buildup could lead to domestic turmoil in a number of European states and render the alliance ineffective for a prolonged period. Europeans need to act now and voice their preferences in the military and diplomatic domains. A number of different military options are available, below the level of deploying new INF missiles in Europe. However, Europeans need to consider trade-offs regarding crisis and arms-race stability. At the same time, it will be up to European capitals to conceptualize a new arms-control framework for the post-INF world, one that takes into account today’s geopolitical realities and the entanglement of modern conventional and nuclear forces. Given the Trump administration’s loathing of arms control, concepts of mutual restraint may well have to wait for the next US administration. In any case, that should not stop Europeans from taking on more responsibility for their own security.     

On a constraint qualification in a nondifferentiable programming problem

A mathematical programming problem with an objective function containing the square root of a positive semidefinite quadratic form has been considered by Mond. In order to use a transposition theorem of Eisenberg, Mond introduces a complicated constraint qualification. In this note we give a simple geometric characterization to this constraint qualification and show that it is implied by the generalized Slater constraint qualification.     

Analysis of a production system in a general configuration

We consider a production system comprising multiple stations (or workshops) such as an entry station, a set of work stations, a central station, and an exit station, which are arranged in a general configuration. A worker (or a vehicle tool) is assigned to each station, who sends a part from the station to the destination station according to the required process path of the part. Any part is allowed to visit a work station more than once if its process path requires. We propose a new control strategy with the push policy for instructing each worker to send a part and the kanban mechanism for controlling the work‐in‐process (WIP) in each work station. As all work stations have limited local buffers, the central station is used for storing blocked parts temporarily. Such a production system is modeled as an open queueing network in a general configuration with a Markovian part sending policy and a machine no blocking mechanism. The queueing network is analytically characterized. Some important performance measures are compared with other control strategies. A semi‐open decomposition approach is applied to the queueing network for computing the blocking probabilities when parts arrive at the work stations. An algorithm is developed based on the semi‐open decomposition approach. Numerical experiments show the quality of the solutions obtained by the algorithm as well as a property of a performance measure. © 2001 John Wiley & Sons, Inc. Naval Research Logistics 48: 128–143, 2001     

铜冶炼炉溜槽上方钢梁温度分布研究

为了对有色冶炼厂房框架钢梁耐火稳定性评估提供条件,根据冶炼铜实际工况建立计算模型,数值研究钢梁温度分布,结果表明:在加热初期,钢梁的平均温度和最高温度不断上升,经历10个升温-降温周期后,钢梁的最高温度稳定在220℃左右。钢梁温度与梁的截面尺寸和形状、梁计算截面位置、溜槽与梁相对位置等众多因素有关。梁与溜槽距离越大,梁截面高度越大,翼缘宽度越小,最高温度与平均温度越低;梁长度大小不影响梁最高温度,但梁长度越大平均温度越低。     

建筑火灾烟气蔓延规律对火灾探测系统的影响

分析了烟在建筑物内部的蔓延规律,讨论了烟气的蔓延规律、气流速度、障碍物及房间高度对火灾探测系统的影响,得出研究火灾烟气蔓延规律对火灾探测系统的可靠性具有重要意义的结论。     

锁相倍频开关式跟踪滤波器

本文提出一种简单的跟踪滤波器电路,该电路可用于多普勒雷达,主要由开关式带通滤波器和锁相环组成。实验结果表明,它具有捕捉范围宽、捕捉时间短和在噪声背景下有令人满意的性能等特点。     

Experimental investigation of a cook-off temperature in a hot barrel

The experimental investigations of the effect of contact time/temperature on initiating the cook-off using 7.62 mm calibre cartridge cases (CC) were conducted previously. These cartridges were filled with commercial off-the-shelf (COTS) double based (DB) propellant (Bulls Eye) and were loaded in a hot chamber. The thermal explosion temperature is of great significance to both weapon designers and safety inspectors as it provides the operational limit and safe operating temperature. For CC under test, it was found that the cook-off temperatures of this propellant were encountered with the heat transfer profile of the simulated gun barrel between 151.4 °C and 153.4 °C, with a reaction occurring in less than 300 s after the round was chambered. Usefully, each experiment was found to be consistent and repeatable.     

从一起脚手架火灾事故调查引发的思考

简要介绍了某大楼脚手架火灾的形成经过、受灾情形和由此而引发的相关问题、影响。说明火灾发生后火灾原因调查的相关对策和方法。并对城市火灾自动报警系统的作用、大范围深入细致的现场调查询问、按照规范程序进行火灾调查工作的作用和重要性进行了阐述。