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排序方式: 共有108条查询结果,搜索用时 31 毫秒
41.
反卫星激光武器发展现状与动态 总被引:1,自引:0,他引:1
空间军事化使反卫星激光武器再度受到重视,在阐述反卫星激光武器特点和作用原理的基础上,详细综述了地基、空基和天基等多种平台反卫星激光武器的发展现状和重要发展动向。 相似文献
42.
核爆模拟-惯性约束聚变在核武器上的应用 总被引:1,自引:0,他引:1
扼要介绍了核爆模拟的基本概念,主要研究内容及驱动器与靶物理研究的进展,同时,对核爆模拟的发展前景进行了简短的评述。 相似文献
43.
简述了美国研制中子弹的历史背景,中子弹的简要发展史,详细阐释了中子弹的两个重要特性;强辐射与低爆炸威力,并与普通裂变弹作了对比,在分析中子弹特性的基础上,讲述了中子弹的物理原理,即中子弹是一种以氘氚聚变反应释放的高能中子为主杀务因素的特殊设计的低威力氢弹,最后,文章阐述了中子弹的功用与局限以及中子弹的防御措施。 相似文献
44.
导弹武器系统生存能力研究 总被引:1,自引:0,他引:1
为了合理评估导弹武器系统的生存能力,分析了导弹武器系统所面临的威胁环境,提出了影响其生存能力的主要因素,建立了导弹武器系统的伪装能力模型、反应能力模型、防护能力模型、维修保障能力模型,以及生存能力的通用模型.最后讨论了各种因素在作战运用中的实际影响. 相似文献
45.
A Tabu Search Heuristic for Resource Management in Naval Warfare 总被引:1,自引:0,他引:1
Dale E. Blodgett Michel Gendreau François Guertin Jean-Yves Potvin René Séguin 《Journal of Heuristics》2003,9(2):145-169
Effective utilization of scarce resources, in particular weapon resources, is a prominent issue in naval anti-air warfare. In this paper, defence plans are constructed to guide the allocation and scheduling of different types of defence weapons against anti-ship missiles, subject to various physical and operational constraints. To reduce the frequency of replanning, decision trees are considered to explicitly account, in a probabilistic manner, for all possible outcomes of a particular action. A construction heuristic is first developed to generate an initial tree. A tabu search heuristic then improves this tree through the removal or addition of defence actions, followed by update operations aimed at maintaining the consistency. Numerical results obtained on scenarios with an increasing number of threats show that substantial improvements, in terms of survivability of the ship, can be obtained in reasonable computation times using tabu search. 相似文献
46.
根据激光半自动导弹的控制特性,建立自寻的导弹捕获域的数学模型,分析影响捕获域的主要因素,对进一步研究自寻的导弹的命中率提供参考。 相似文献
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This paper reports the performance of an Artificial Neural Network based road condition monitoring methodology on measured data obtained from a Land Rover Defender 110 which was driven over discrete obstacles and Belgian paving. In a previous study it was demonstrated, using data calculated from a numerical model, that the neural network was able to reconstruct road profiles and their associated defects within good levels of fitting accuracy and correlation. A nonlinear autoregressive network with exogenous inputs was trained in a series–parallel framework. When compared to the parallel framework, the series–parallel framework offered the advantage of fast training but had a shortcoming in that it required feed-forward of true road profiles. In this study, the true profiles are not available and the test data are obtained from field measurements. Training data are numerically generated by making minor adjustments to the real measured profiles and applying them to a full vehicle model of the Land Rover. This is done to avoid using the same road profile and acceleration data for training and testing or validating the neural network. A static feed-forward neural network is trained and consequently tested on the real measured data. The results show very good correlations over both the discrete obstacles and the Belgian paving. The random nature of the Belgian paving necessitated correlations to be made using their displacement spectral densities as well as evaluations of RMS error percent values of the raw road profiles. The use of displacement spectral densities is considered to be of much more practical value than the road profiles since they can easily be interpreted into road roughness measures by plotting them over an internationally recognized standard roughness scale. 相似文献
50.
对常用的两种快速传递对准状态模型(ψ角与m_ψ角模型)的等效性进行了分析与证明。在此基础上,针对MEMS-IMU低精度与稳定性欠佳等特性,综合考虑对准精度与算法实时性,建立了11维ψ角与m_ψ角快速传递对准模型。与传统的15维模型相比,新模型的计算复杂度降低了约60%。与此同时,提出了"安装角滤波器+陀螺仪零偏滤波器"的双滤波器并行工作设计思路,并给出了一种抑制器件误差影响与环境干扰的带宽隔离滤波器参数设计方法,提高了传递对准滤波器设计的灵活性与系统鲁棒性。通过飞行试验对传递对准系统模型与设计方法进行了试验验证,结果表明,相较于传统算法,收敛时间减少至30 s以内,传递对准精度提高约40%,有效解决了低精度MEMS-IMU在航空制导武器中的应用问题。 相似文献