MAD: Mathematical analysis of downtime

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.     

The fixed charge problem

A fundamental unsolved problem in the programming area is one in which various activities have fixed charges (e.g., set-up time charges) if operating at a positive level. Properties of a general solution to this type problem are discussed in this paper. Under special circumstances it is shown that a fixed charge problem can be reduced to an ordinary linear programming problem.     

Expeditionary police advising: some causes of failure

ABSTRACT

The practice of dispatching teams of police advisors to other states to build or train foreign security forces began at the end of the nineteenth century, yet there exists no definitive history of the practice, or any definitive theoretical approach underpinning why such missions succeed or fail. Drawing upon their recent edited book on expeditionary police advising, and by examining the donor or sending states, the host nations, and the use of police in counterinsurgency situations, the authors present some key reasons why such missions fail, and lay some groundwork for additional study of this important subject.     

Bedeviled by a Paradox: Nitze,Bundy, and an Incipient Nuclear Norm

ABSTRACT

This article explores how two influential American policy makers—Paul Nitze and McGeorge Bundy—wrestled with the idea of a norm against the use of nuclear weapons. Existing scholarship has overlooked how both Bundy and Nitze came to understand the idea of nuclear non-use, especially related to the credibility of threats to use nuclear weapons. Using documentary evidence from their personal papers, this article illuminates the thinking of Bundy and Nitze, finding that both engaged with the idea of a norm of non-use of nuclear weapons in their strategic writing and thought.     

THE ROLLBACK OF LIBYA'S CHEMICAL WEAPONS PROGRAM

In 2003, Libyan leader Muammar Qaddafi agreed to eliminate his country's weapons of mass destruction (WMD) programs and long-range Scud missiles under strict verification by U.S. and British experts and international inspectors. This article examines the negotiation and implementation of Libya's WMD rollback, with a primary focus on its chemical weapons program, and draws some lessons for the future. Although the Libyan case was unique in many ways, some aspects have relevance for other countries, including the critical role played by multilateral nonproliferation organizations, the utility of economic sanctions and export controls, the importance of a flexible U.S. disarmament funding mechanism, the value of rotating technical assistance teams in and out of the country that is disarming, and the desirability of remaining politically engaged with a former proliferator after rollback is complete.