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111.
基于实战化条件下人民防空装备体系管理能力建设应着眼国家安全利益拓展,人民防空转型建设需求和完成多样化任务需要,强化顶层设计,搞好储备,坚持信息主导,着眼"能打仗、打胜仗",坚持"战斗力这个唯一的根本的标准",建设与发展相适应的人民防空装备体系管理能力。 相似文献
112.
Sarah M. Ryan 《海军后勤学研究》2003,50(2):167-183
The combination of uncertain demand and lead times for installing capacity creates the risk of shortage during the lead time, which may have serious consequences for a service provider. This paper analyzes a model of capacity expansion with autocorrelated random demand and a fixed lead time for adding capacity. To provide a specified level of service, a discrete time expansion timing policy uses a forecast error‐adjusted minimum threshold level of excess capacity position to trigger an expansion. Under this timing policy, the expansion cost can be minimized by solving a deterministic dynamic program. We study the effects of demand characteristics and the lead time length on the capacity threshold. Autocorrelation acts similarly to randomness in hastening expansions but has a smaller impact, especially when lead times are short. However, the failure either to recognize autocorrelation or to accurately estimate its extent can cause substantial policy errors. © 2003 Wiley Periodicals, Inc. Naval Research Logistics, 2003 相似文献
113.
114.
对新疆构建天山北坡城市带的设想 总被引:1,自引:0,他引:1
白燕 《兵团教育学院学报》2003,13(3):44-47
新世纪,新疆为推动经济的发展,提出了大力发展天山北坡经济带的战略。而经济带的发展必须以城市带为载体,二者是相辅相成关系,文中从构建城市带的意义入手,对城市带建立中存在问题以及思路作了阐述。 相似文献
115.
王京齐 《海军工程大学学报》2003,15(4):65-68
阐明了潜艇承载力图谱的一种新算法,分析了危险舵卡的基本挽回方法及其衡准,论述了当前水下动力抗沉的实用方法及评价指标. 相似文献
116.
陈亮 《中国人民武装警察部队学院学报》2008,24(6):30-32
高层公寓的火灾特点不同于普通的高层住宅,其火灾危险性高于普通住宅。分析了高层公寓的火灾特点,并从消防车作业面、安全疏散、防火分隔、防排烟、灭火设施、内装修等方面提出了高层公寓防火设计应注意的问题。 相似文献
117.
消防部队抢险救援战斗力评估 总被引:1,自引:0,他引:1
李刚 《中国人民武装警察部队学院学报》2008,24(12):35-37
以消防部队参与抢险救援战斗实例引出消防抢险救援战斗力的评估问题,并对评估的意义从组织指挥、消防员的安全、特勤队伍的发展角度进行了论述,重点剖析了影响战斗力评估的人员、装备、自然、组织等因素,对评估的组织从专家组成和制度建设两个方面提出了具体的建议。 相似文献
118.
姜礼平 《海军工程大学学报》1990,(3)
本文利用四种时间序列模型,即自回归模型、组合模型、疏系数自回归模型、门限自回归模型,分别对时间序列分析中一组有名数据,即加拿大山猫数据,进行模型拟合,并对得到的四个模型及预报结果进行了分析和比较。 相似文献
119.
An important aspect of supply chain management is dealing with demand and supply uncertainty. The uncertainty of future supply can be reduced if a company is able to obtain advance capacity information (ACI) about future supply/production capacity availability from its supplier. We address a periodic‐review inventory system under stochastic demand and stochastic limited supply, for which ACI is available. We show that the optimal ordering policy is a state‐dependent base‐stock policy characterized by a base‐stock level that is a function of ACI. We establish a link with inventory models that use advance demand information (ADI) by developing a capacitated inventory system with ADI, and we show that equivalence can only be set under a very specific and restrictive assumption, implying that ADI insights will not necessarily hold in the ACI environment. Our numerical results reveal several managerial insights. In particular, we show that ACI is most beneficial when there is sufficient flexibility to react to anticipated demand and supply capacity mismatches. Further, most of the benefits can be achieved with only limited future visibility. We also show that the system parameters affecting the value of ACI interact in a complex way and therefore need to be considered in an integrated manner. © 2011 Wiley Periodicals, Inc. Naval Research Logistics, 2011 相似文献
120.
We present a tactical decision model for order acceptance and capacity planning that maximizes the expected profits from accepted orders, allowing for aggregate regular as well as nonregular capacity. The stream of incoming order arrivals is the main source of uncertainty in dynamic order acceptance and the company only has forecasts of the main properties of the future incoming projects. Project proposals arrive sequentially with deterministic interarrival times and a decision on order acceptance and capacity planning needs to be made each time a proposal arrives and its project characteristics are revealed. We apply stochastic dynamic programming to determine a profit threshold for the accept/reject decision as well as to deterministically allocate a single bottleneck resource to the accepted projects, both with an eye on maximizing the expected revenues within the problem horizon. We derive a number of managerial insights based on an analysis of the influence of project and environmental characteristics on optimal project selection and aggregate capacity usage. © 2007 Wiley Periodicals, Inc. Naval Research Logistics, 2007 相似文献