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根据战时弹药配送原则,建立无友邻单位支援条件下的本级弹药配送模型.即在库存弹药效益最大化基础上,分析弹药库能满足和不能满足作战部队需求量等情况,并建立相应数学模型.若各种弹药存储量能满足各部队申请总量,弹药库的弹药可对友邻单位进行支援.对本单位进行弹药配送时,主要考虑运送成本和时效性. 相似文献
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Lead poisoning caused by ingested spent lead shotgun pellets has long been known to be a cause of unnecessary mortality in waterfowl and has led to legislation limiting its use in many countries. Recent evidence has shown that the problem extends to terrestrial ecosystems and to fragmented rifle bullets eaten by scavengers as well as shotgun pellets. Dietary exposure of human consumers to lead from spent ammunition in game meat also poses potential risks to human health. To assess the degree of fragmentation of lead bullets used to kill wild deer, twelve deer were shot in the thorax using copper-jacketed lead-cored bullets, as part of planned deer management operations. The thoracic region of the eviscerated carcasses and the abdominal viscera of each deer were X-rayed. An average of 356 metal fragments was visible on radiographs of the carcass and 180 fragments in the viscera. The weight of fragments was estimated by reference to an X-rayed scale of fragments of known weight. The average total weight of metal fragments, likely to be mostly lead, was estimated to be 1.2 g for the carcass and 0.2 g for the viscera. The total estimated weight of fragments in the entire carcass was estimated to be 17% of the weight of the bullet. Most fragments were small in size, with those in the viscera being smaller than those in the carcass. Metal fragments in the viscera were sufficiently small that at least 80% of the metallic bullet-derived lead in the viscera would be expected to be ingested by scavenging birds, such as buzzards and eagles, which feed on them. 相似文献
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国外末敏弹药的发展现状及前景分析 总被引:4,自引:0,他引:4
论述了国外末敏弹药发展现状,介绍了国外几种典型产品,分析了末敏弹药的发展前景。 相似文献