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171.
The MAD model presents a mathematic treatment of the relationship between aircraft reliability and maintainability, system manning and inspection policies, scheduling and sortie length, and aircraft downtime. Log normal distributions are postulated for subsystem repair times and simultaneous repair of malfunctions is assumed. The aircraft downtime for maintenance is computed with the distribution of the largest of k log normal distributions. Waiting time for maintenance men is calculated either by using a multiple-channel queuing model or by generating the distribution of the number of maintenance men required and comparing this to the number of men available to determine the probability of waiting at each inspection. 相似文献
172.
J. R. Isbell 《海军后勤学研究》1967,14(4):569-571
The solution of isaacs1 problem of optimal pursuit in a plane with a circular disk removed, given constant speeds, zero turning radius, and perfect visibility for both players is presented herein. The hole has three effects: the trivial effect that shortest paths are not straight, the trapping effect to turn the evader from running into the hole, and the screening effect causing an evader retreating behind the hole not to retreat across a line through its center. 相似文献
173.
George R. Fitzpatrick Jerome Bracken Mary J. O'brien Lee G. Wentling Justin C. Whiton 《海军后勤学研究》1967,14(2):241-255
A linear programming model for analyzing the strategic deployment mix of airlift and sealift forces and prepositioning to accomplish the composite requirements of a set of possible contingencies is described in this paper. It solves for the least-cost mix of deployment means capable of meeting any one of a spectrum of contingencies, or meeting simultaneous contingencies. The model was developed by RAC as part of the U.S. Army's study program and has been used in analyses of deployment systems conducted in support of the U.S. Army, the Joint Chiefs of Staff and the Office of the Secretary of Defense. Results of analyses have influenced the preparation of long-range plans as well as the formulation of the FY67 Department of Defense budget. The paper gives the background and assumptions of the model, describes the model by means of a simple hypothetical example followed by a selected subset of a complete version, and discusses how the model is used. 相似文献
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Eric R. Rittinger 《Small Wars & Insurgencies》2013,24(1):136-157
Why did the United States, a country notorious for supporting coups and military dictatorships in Latin America during the Cold War, seek to depoliticize security forces in the Caribbean basin during the early twentieth century? Drawing from primary sources, I argue that this emphasis on military non-partisanship abroad stemmed from Progressive Era reforms popular at home. These reforms, which stressed bureaucratic efficiency via nonpartisan expertise, had become institutionalized within the US military and State Department and then channelled into the imperial administration of Nicaragua and the Dominican Republic. The State Department and Marine Corps attempted to replace local partisan armies with the kind of professional, nonpartisan armed forces that the US's own military had come to exemplify. That these civil-military reform efforts ultimately backfired should serve as a reminder of the difficulties inherent in using military interventions to transform coercive apparatuses and their societies. 相似文献
180.
Andrew R. Novo 《Small Wars & Insurgencies》2013,24(3):414-431
This article examines the ambiguous role played by the Cyprus Police Force during the Greek Cypriot insurgency against Britain between 1955 and 1959. A multiethnic force policing a multiethnic society, the CPF struggled to fulfill its duties. Greek Cypriot officers became ineffective as sympathy for, or fear of insurgents undermined their ability to function. Some collaborated, others resigned. Those who stayed became targets of their own people. Turkish Cypriot officers, recruited in greater numbers to compensate for a reduction in Greek Cypriot officers, worked to enforce the law, but exacerbated intercommunal relations in doing so. In spite of the peculiar conditions present in Cyprus, the case has valuable implications for contemporary policymakers on the vulnerabilities inherent in the use of local police forces to restore law and order in ethnically divided societies. 相似文献