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81.
Proposed is a Heuristic Network (HN) Procedure for balancing assembly lines. The procedure uses simple heuristic rules to generate a network which is then traversed using a shortest route algorithm to obtain a heuristic solution. The advantages of the HN Procedure are: a) it generally yields better solutions than those obtained by application of the heuristics, and b) sensitivity analysis with different values of cycle time is possible without having to regenerate the network. The rationale for its effectiveness and its application to problems with paralleling are presented. Computational experience with the procedure on up to 50 task test problems is provided. 相似文献
82.
We consider a simple two‐stage supply chain with a single retailer facing i.i.d. demand and a single manufacturer with finite production capacity. We analyze the value of information sharing between the retailer and the manufacturer over a finite time horizon. In our model, the manufacturer receives demand information from the retailer even during time periods in which the retailer does not order. To analyze the impact of information sharing, we consider the following three strategies: (1) the retailer does not share demand information with the manufacturer; (2) the retailer does share demand information with the manufacturer and the manufacturer uses the optimal policy to schedule production; (3) the retailer shares demand information with the manufacturer and the manufacturer uses a greedy policy to schedule production. These strategies allow us to study the impact of information sharing on the manufacturer as a function of the production capacity, and the frequency and timing in which demand information is shared. © 2003 Wiley Periodicals, Inc. Naval Research Logistics, 2003 相似文献
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David Ucko 《战略研究杂志》2013,36(1):47-72
This article examines the emerging US Marine Corps concept of ‘Distributed Operations’ (DO) and its applicability to counter-insurgency. DO involves dispersing the force and empowering decentralised units so as to create a network of mobile, agile and adaptable cells, each operating with a significant degree of autonomy yet in line with the commander's overall intent. This concept's applicability to irregular campaigns is assessed with reference to the Malayan Emergency, in which the British and Commonwealth forces employed dispersed and decentralised small-unit formations to great effect. The article teases out the conditions that allowed DO to succeed in Malaya, and comments on the requirements and implications for the use of DO today in the prosecution of the ‘Long War’. 相似文献
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David A. Charters Sam C. Sarkesian Daniel W. Fitz‐Simons 《Small Wars & Insurgencies》2013,24(2):280-286
A. Hamish Ion and E.J. Errington (eds.), Great Powers and Little Wars: the Limits of Power. Westport, CT: Praeger, 1993. Pp.246, select biblio, index. $49.95. ISBN 0275–93965–0 John M. Rothgeb, Jr., Defining Power: Influence and Force in the Contemporary International System. New York: St. Martin's Press, 1993. Pp.205. $39.95 (hbk); $18.70 (pbk). ISBN 0312–086–822 and 061–056 Brian L. Job (ed.), The Insecurity Dilemma: National Security in Third World States. Boulder, CO: Lynne Rienner Publishers, 1992, Pp.257. $37. ISBN 1–55587–267–0 Edwin G. Corr and Stephen Sloan (eds.), Low‐Intensity Conflict: Old Threats in a New World. Westview Studies in Regional Security, Boulder, CO: Westview, 1992. Pp.310, maps, figures, index. $55 (hbk); $18.85 (pbk). ISBN 0–8133–8593–8 and 8594–6 相似文献
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David F Winkler 《战略研究杂志》2013,36(2):361-377
As a consequence of the rapid growth of Soviet maritime power during the 1960s, hazardous incidents at sea and in the air became a regular part of the Cold War. Eventually, both Washington and Moscow came to recognize the importance of an agreement limiting this perilous set of interactions, resulting in the Incidents at Sea Agreement that was signed in May 1972. The set of rules and procedures agreed upon helped to calm tensions in subsequent crises and provides ample lessons for placing reasonable limits on other tense maritime rivalries. 相似文献
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David Friedman 《The Nonproliferation Review》2013,20(3):401-411
Nonproliferation policies to prevent biological and chemical weapons use are important, but insufficient, particularly in view of the rise of global terrorism. Given the history of developing and using these weapons, it is crucial that governments properly prepare for biological and chemical threats, whether naturally occurring or man-made, such as by developing and managing effective healthcare infrastructure to mitigate widespread illness and injuries resulting from pandemics or terrorist attacks. Although the Middle East is one of the most sensitive and complex areas in the world—especially regarding regional arms control efforts and prevention—coordinating preparedness strategies among states in the region may be possible. Cooperatively addressing biological and chemical threats could lead to constructive progress towards the otherwise elusive goal of establishing a weapons of mass destruction-free zone in the Middle East. 相似文献
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David Santoro 《The Nonproliferation Review》2013,20(3-4):319-332
This viewpoint takes stock of the changes in the strategic nuclear landscape in recent decades and reflects on its consequences on the policy community. It finds that the number and scope of issues have expanded considerably; they have manifested themselves in many more regions of the world; and they have become deeply politicized and polarized. The consequences have been twofold: the nuclear policy field has seen the development of an increasingly diverse expert community composed of highly specialized functionalists and regionalists, and it has become ever more divided into two entirely separate ideological camps—one that believes in deterrence, the other in disarmament. The stove-piping of expertise and the widening gap between deterrence and disarmament ideologies are immensely problematic because, in different ways, they stand in the way of the emergence of a better and safer nuclear future. Looking ahead, it is critical to “bust the silos of expertise” and to build bridges between the deterrence and disarmament ideological camps. Only such a community-building effort will help solve today’s and tomorrow’s nuclear challenges. 相似文献