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题名小子样条件下火箭弹射击密集度可靠性研究
被引量:1
- 1
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作者
黄延平
高俊国
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机构
军械工程学院
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出处
《计算机工程与应用》
CSCD
2013年第3期255-257,262,共4页
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文摘
针对当前武器系统试验分析评估存在难以进行大量试验,经典统计方法难以满足需求的状况,提出在小子样条件下对某型火箭弹射击密集度可靠性进行评估。根据地面模拟环境试验和飞行试验信息,利用二项分布确定火箭弹射击密集度可靠性的分布,使用计算机进行数值处理。在不降低试验要求的情况下,与经典方法相比,小子样理论大幅度地减少了飞行试验用弹量。
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关键词
小子样
射击密集度
可靠性
综合抽样
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Keywords
small sample
fire concentration
reliability
synthesis random sample
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分类号
TP391
[自动化与计算机技术—计算机应用技术]
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题名髌骨软化症的中西医结合治疗近况
被引量:12
- 2
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作者
包飞
王凤琴
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机构
中国医学科学院北京协和医院中医科
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出处
《中国临床康复》
CSCD
北大核心
2006年第3期158-160,共3页
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文摘
目的:对髌骨软化症的非手术疗法现状进行系统文献回顾,以期为临床治疗提供参考资料,并探讨进一步发挥非手术疗法作用的策略。资料来源:检索Medline2000-01/2004-12与髌骨软化症相关的文献,检索词“chondromalaciaofpatella”,并限定文章语言种类为英文。检索中国医院数字图书馆1994-01/2004-12中国医学核心期刊关于髌骨软化症的相关文献,检索词“髌骨软化症”,限定文章语言种类为中文。资料选择:对检索到的髌骨软化症相关文献112篇进行筛选,选择非手术疗法,并排除综述类文献,符合纳入标准的有58篇。资料提炼:对58篇文献进行分类整理,排除重复性文献,纳入27篇文献。资料综合:国内对髌骨软化症的非手术疗法是以局部治疗为主,方法主要有中药、针灸、推拿、针刀等中医疗法,在缓解临床症状方面具有较好的疗效。但目前多数资料缺乏严格的临床研究设计、统一的疗效评价标准和随访,尤其缺少临床分期诊断标准和客观监测指标,疗效机制也有待研究。结论:非手术疗法治疗髌骨软化症显示了较好的临床疗效,但仍需开展大样本随机对照研究进行科学评价,并筛选较佳治疗方案;需尽快建立临床分期诊断标准,寻求客观监测指标以助于确定非手术疗法适应症,提高临床疗效,并对疗效机制加以研究。
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关键词
骨软化症
髌骨
综述文献
中西医结合治疗
临床分期
临床疗效
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Keywords
of 'chondromalacia of patella', and limited the language to English. Meanwhile, Chinese Hospital Digital Library and Chinese Core Journal of Medical Science were retreived for articles related to chondromalacia of patella from January 1999 to December 2004 with the key words of 'chondromalacia of patella', and limited the language to Chinese. STUDY SELECTION: A total of 112 articles related to chondromalacia of patella were screened, non-operative treatment articles were included, reviews were excluded, 58 articles were in accordance with the inclusive criteria.data EXTRACTION: 58 literatures were classified, repetitve articles were excluded, and 27 ones were included. data synthesis: Domestic non-operative treatment of chondromalacia of patella were mainly local ones, especially traditional Chinese medical methods, such as Chinese drugs, acupuncture, massage and acupotomy, which had a good effect on ameliorating clinical symptoms. But most data lacked of strict clinical research design, uniform standard for evaluation of curative effect and follow up, especially clinical staging diagnosis standard and objective inspection index. Mechanism of curative effect needed further developing.CONCLUSION: Non-operative treatment has a good clinical effect on chondromalacia of patella, however, large-sample randomized controlled trials are required to evaluate scientifically, so as to obtain better means. It is also necessary to establish clinical staging diagnosis standard as soon as possible, and seek for objective inspection index, so as to make sure of the adaptation diseases of non-operative treatment and improve clinical effect. Mechanism of therapeutic effect must be studied.
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分类号
R681
[医药卫生—骨科学]
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题名计算网络系统可靠度下限的二种M—C方法及结果分析
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作者
熊志昂
张全虎
聂金华
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机构
二炮工程学院
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出处
《系统工程与电子技术》
EI
CSCD
1993年第3期78-80,共3页
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文摘
本文研究系统可靠性结构为网络型,已知分系统的可靠性估计值,然后转化为折合的成败型数据。用二种蒙特卡罗(M—C)方法对网络系统进行可靠性综合,最后对计算结果进行分析。
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关键词
网络结构
可靠性
计算机网络
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Keywords
system reliability synthesis, pass-fail data, random sampling.
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分类号
TP393
[自动化与计算机技术—计算机应用技术]
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