全文获取类型
收费全文 | 710篇 |
免费 | 18篇 |
出版年
2019年 | 17篇 |
2018年 | 12篇 |
2017年 | 20篇 |
2016年 | 13篇 |
2015年 | 17篇 |
2014年 | 20篇 |
2013年 | 136篇 |
2012年 | 7篇 |
2010年 | 9篇 |
2009年 | 14篇 |
2007年 | 6篇 |
2006年 | 8篇 |
2005年 | 9篇 |
2004年 | 13篇 |
2003年 | 10篇 |
2002年 | 11篇 |
2001年 | 6篇 |
2000年 | 11篇 |
1999年 | 7篇 |
1998年 | 13篇 |
1997年 | 7篇 |
1996年 | 9篇 |
1995年 | 6篇 |
1994年 | 17篇 |
1993年 | 18篇 |
1992年 | 10篇 |
1991年 | 17篇 |
1990年 | 12篇 |
1989年 | 18篇 |
1988年 | 20篇 |
1987年 | 18篇 |
1986年 | 20篇 |
1985年 | 14篇 |
1984年 | 9篇 |
1983年 | 8篇 |
1982年 | 7篇 |
1981年 | 8篇 |
1980年 | 7篇 |
1979年 | 11篇 |
1978年 | 13篇 |
1976年 | 9篇 |
1975年 | 8篇 |
1974年 | 13篇 |
1973年 | 9篇 |
1972年 | 10篇 |
1971年 | 7篇 |
1970年 | 12篇 |
1969年 | 10篇 |
1968年 | 7篇 |
1967年 | 6篇 |
排序方式: 共有728条查询结果,搜索用时 15 毫秒
271.
272.
273.
This article considers the problem of joint control of attribute and variable quality characteristics of a given product. Items are acceptable if they meet the specifications for both types of quality characteristics at the same time. Otherwise, the items are sold as scrap at reduced prices. The objective is to determine simultaneously the target values for each characteristic so as to maximize the expected profit per item. Several item-by-item quality-inspection plans are formulated on the basis of various inspection strategies. These strategies are defined in terms of whether the inspection is to be carried out simultaneously for both characteristics, or sequentially, or whether inspection for one of the characteristics is to be ignored. All these plans are shown to differ in terms of their profitability. However, they all yield equivalent quality standards. A numerical example is provided to illustrate the application of these models. 相似文献
274.
In this paper the effects of inspector error on a cost-based quality control system are investigated. The system examined is of a single sampling plan design involving several cost components. Both type I and type II inspector errors are considered. The model employs a process distribution, thus assuming that a stochastic process of some kind governs the quality of incoming lots. Optimal plan design is investigated under both error-free and error-prone inspection procedures and some comparisons are made. 相似文献
275.
U. J. Nieminen 《海军后勤学研究》1974,21(3):557-561
The paper makes some remarks on the paper of Hakimi and Frank and shows a simplified way of applying the concept of alternating forest. An algorithm for finding a maximum internally stable set of an undirected graph is constructed and some examples are given. 相似文献
276.
C. B. Millham 《海军后勤学研究》1974,21(2):307-317
This work considers a class of bimatrix games to which some well-known structure theorems of 0-sum matrix games can be made to generalize. It is additionally shown how to construct such games and how to generate the equilibrium points defining a given game as a member of that class. 相似文献
277.
J. R. Callahan 《海军后勤学研究》1973,20(2):321-324
Sufficient conditions are developed for the ergodicity of a single server, first-come-first-serve queue with waiting time dependent service times. 相似文献
278.
The problem of determining the optimal inspection epoch is studied for reliability systems in which N components operate in parallel. Lifetime distribution is arbitrary, but known. The optimization is carried with respect to two cost factors: the cost of inspecting a component and the cost of failure. The inspection epochs are determined so that the expected cost of the whole system per time unit per cycle will be minimized. The optimization process depends in the general case on the whole failure history of the system. This dependence is characterized. The cases of Weibull lifetime distributions are elaborated and illustrated numerically. The characteristics of the optimal inspection intervals are studied theoretically. 相似文献
279.
Frequently in warfare, a force is required to attack a perishable enemy target system - a target system where the targets are detected seemingly at random, and if not immediately attacked, will shortly escape from detection. A conflicting situation arises when an attack element detects a target of relatively low value and has to decide whether to expend his resources on that particular target or to wait for a more lucrative one, hoping one will be found. This paper provides a decision rule giving the least valued target that should be attacked as well as the resources that should be expended as a function of the attack element's remaining mission time. 相似文献
280.
This work is concerned with constructing, analyzing, and finding “mobility chains” for bimatrix games, sequences of equilibrium points along which it is possible for the two players to progress, one equilibrium point at a time, to an equilibrium point that is preferred by both players. The relationship between mobility chains and Nash subsets is established, and some properties of maximal Nash subsets are proved. 相似文献