Results 151 to 160 of about 2,809 (217)

Synergies in Agricultural Biodiversity Conservation: Decomposing the Interaction Between Nature Parks and Agri‐Environment Schemes

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT Understanding how policy instruments with overlapping goals interact is crucial for leveraging their synergies. This study explores the mechanisms for regional nature parks (a form of protected areas that impose no restrictions on agriculture) to enhance the adoption of biodiversity‐conserving agri‐environment schemes (AES) in Switzerland ...
Yanbing Wang, Christian Ritzel, Antonia Kaiser, Gabriele Mack   +3 more
wiley   +1 more source

Markets Mitigate Land‐Use Competition From Energy Crops and Increase Farm Revenues

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT Meeting the US Sustainable Aviation Fuel Grand Challenge target of 35 billion gal annually by 2050 will require an estimated 380 million–700 million dry tons of agricultural biomass feedstock. This study evaluates the implications of large‐scale biomass production for land use, crop production, and market outcomes under mature market ...
Daniel G. De La Torre Ugarte, Matthew H. Langholtz, Chad M. Hellwinckel   +2 more
wiley   +1 more source

Optimal maintenance policies

, 2010
openaire   +1 more source

Kenyan Farmers' Policy Priorities During Economic Crisis and Stability: Insights From a Best‐Worst Scaling Experiment

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT Amid rising food and fertilizer prices, understanding farmers' policy preferences is critical for effective crisis response. We use best‐worst scaling experiment to assess Kenyan mobile‐owning crop farmers' preferences for government support under high and normal price scenarios.
Mywish K. Maredia, John Olwande, Jacob Ricker‐Gilbert, David L. Mather, Nicole M. Mason   +4 more
wiley   +1 more source

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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   +3 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

Optimal maintenance—replacement policy under imperfect maintenance

Reliability Engineering & System Safety, 1992
Abstract During a given planning period, in order to have the system working at or below a fixed failure rate, it may be necessary to replace the system to minimize the expected total cost. Preventive maintenance (PM) or replacement should be performed whenever the system reaches the maximum failure rate.
V. Jayabalan, Dipak Chaudhuri
openaire   +1 more source

Maintenance comparisons: block policies

Journal of Applied Probability, 1990
Complete repair and minimal repair models with a block maintenance policy are considered. Each of these models gives rise to a counting process, and these processes are compared stochastically. This contrasts with most previous work on maintenance policies where only univariate marginal comparisons were made.
Block, Henry W., Langberg, Naftali A., Savits, Thomas H.   +2 more
openaire   +1 more source