Numerous studies have considered penalty as part of lease contract stipulation, which incurs whenever equipment downtime exceed a predetermined level. Under this stipulation, lessor would then choose maintenance effort level just enough to hinder them from penalty. Since it is used for business purpose, lower equipment downtime would always preferable for the lessee but necessarily for the less...

This paper used the Data Envelopment Analysis (DEA) to measure the technical efficiency of fishing vessels in Haizhou Bay, and then used the Tobit regression to define its influencing factors. This study shows that the overall fishing capacity utilization of fishing vessels at present is very low which indicates that there is a serious waste of resources problem in Haizhou Bay. Specifically, th...

This research aims to improve the utilization efficiency of parking facilities in residential areas. The real-time and fixed-time shared spot allocation models based on a time window constraint are proposed, respectively. model adopts dynamic response service mechanism, introducing multi-objective decision weighting method construct weighted evaluation function. Then, 0–1 planning with user opt...

General cost for CNC machining and the associated energy cost are set in the context of making economic and environmental improvements. This creates an incentive for manufacturing companies to investigate the energy efficiency of manufacturing processes. The paper presents a costing model, based on machining experiments. The model is accompanied with an industry based case to estimate the cost ...

The most important mining enterprise indicators are the reliability and durability of its equipment. These equipment parameters have greatest impact not only on complex efficiency, but also extracted minerals price, as downtime, well as, cost repair works spare parts purchase included in coal. Thus, main goal improving production is to improve used Researches carried out coal company ‘Kuzbassra...

Executive Summary The overall concept of Total Cost of Ownership for server clusters has been an important issue within the IT community for many years. Numerous studies and customer experiences have proven that purchase price alone is not an adequate measurement to compare server clusters from various vendors. Other factors, including the costs to manage and maintain the servers, as well as th...

Growing concern in the management of energy due to the increasing energy costs, has forced managers to optimize the amount of energy required to provide products and services. This research integrates an energy-based resource investment project-scheduling problem (RIP) under a multi-skilled structure of the resources. The proposed energy based multi skilled resource investment problem (EB-MSRIP...

In this paper, a bi-objective model is proposed for designing a pre-positioning network of pharmaceutical supplies considering their limited shelf-life. The presented model aims to consider both cost efficiency and responsiveness by minimization of total cost and the maximum amount of unmet demand under uncertainties in demand and supply sides’ data. Moreover, for effective distribution of reli...

It is time for the systems community of researchers and developers to broaden the agenda beyond performance. The 10000X increase in performance over the last 20 years means that other aspects of computing have risen in relative importance. We see three challenges for the future as [Patterson2002a]: 1. Synergy with humanity: We need to make the technology match human nature, both for users of pe...

Purpose – This paper aims to identify key factors that impact operating room (OR) utilization and evaluate different scenarios on OR performance. Design/methodology/approach – Five months of data were collected. stepwise regression and best subset models were used to select factors and generate regression model for OR utilization. We further used simulation to test the influence of case duratio...