Results 201 to 210 of about 173,993 (263)

Clinic Policy and Retention in Methadone Maintenance

Substance Use and Misuse, 1993
Advantage was taken of a natural experiment to investigate the relationship of clinic objectives and procedures with retention in methadone maintenance. Assessment, maximum dose, and time in treatment data on 238 patients were summarized using Cox regression.
J R Caplehorn, John R M Caplehorn, David G Kleinbaum   +2 more
exaly   +3 more sources

Incremental Maintenance of ABAC Policies

Proceedings of the Eleventh ACM Conference on Data and Application Security and Privacy, 2021
Discovery of Attribute Based Access Control policies through mining has been studied extensively in the literature. However, current solutions assume that the rules are to be mined from a static data set of access permissions and that this process only needs to be done once.
Gunjan Batra, Vijayalakshmi Atluri, Jaideep Vaidya, Shamik Sural   +3 more
openaire   +2 more sources

Optimal Maintenance Policy with Imperfect Preventive Maintenance

IEEE Transactions on Reliability, 1981
This paper considers a maintenance policy with imperfect preventive maintenance (pm). After pm, the failure characteristic of the system is different (worse) from that of correctively maintained system (viz. after a failure). Optimal policy which minimizes the mean cost-rate is discussed.
Nguyen D.G., Murthy D.N.P.
openaire   +4 more sources

Optimum Preventive Maintenance Policies

Operations Research, 1960
Two types of preventive maintenance policies are considered. A policy is defined to be optimum if it maximizes “limiting efficiency,” i.e., fractional amount of up-time over long intervals. Elementary renewal theory is used to obtain optimum policies. The optimum policies are determined, in each case, as unique solutions of certain integral equations ...
Barlow, Richard, Hunter, Larry
openaire   +2 more sources

Maintenance Policies with Minimal Repair

Economic Quality Control, 2004
Summary: This article gives a survey on some important maintenance policies involving minimal repairs and replacements of technical systems. The main focus is on policies, which have been published after 1990. Based on a thinned nonhomogeneous Poisson process, repair cost limit policies with minimal repair are discussed in more detail.
Mamabolo, R. M., Beichelt, F. E.
openaire   +1 more source

An Algorithm for Preventive Maintenance Policy

IEEE Transactions on Reliability, 1986
Summary: Simple preventive maintenance (maintenance type 1P) and preventive replacement (maintenance type 2P) are scheduled in such a way that the system does not drop below a minimum reliability. Failure rate after maintenance type 1P lies between ''good as new'' and ''bad as old''.
Lie, Chang Hoon, Chun, Young Ho
openaire   +1 more source