0377-2217/$ see front matter 2008 Elsevier B.V. A doi:10.1016/j.ejor.2008.03.001 * Corresponding author. Tel.: +1 519 888 4567x339 E-mail addresses: [email protected] (L. Fu), vkim@ This paper introduces a real-time optimization model that can be used by maintenance managers to develop and evaluate alternative resources allocation plans for winter road maintenance operations. The model takes int...

Imagine a civil engineering team in a developing country tasked with designing a new road in a flood prone area. This team must determine its location, height, grade, and other key features. They face many challenges. Changing intensity and frequency of flooding may threaten the long-term viability of the road. Limited resources will likely exist to protect the road against uncertain future thr...

Landscape fragmentation and habitat loss are significant threats to the conservation of biological diversity. Creating and restoring corridors between isolated habitat patches can help mitigate or reverse the impacts of fragmentation. It is important that restoration and protection efforts be undertaken in the most efficient and effective way possible because conservation budgets are often seve...

Pareto law, which states that wealth distribution in societies has a power-law tail, has been the subject of intensive investigations in the statistical physics community. Several models have been employed to explain this behavior. However, most of the agent based models assume the conservation of number of agents and wealth. Both these assumptions are unrealistic. In this paper, we study the l...

Fragmentation and recombination is a key to create customized language environments for supporting various intercultural activities. Fragmentation provides various language resource components for the customized language environments and recombination builds each language environment according to user’s request by combining these components. To realize this fragmentation and recombination proce...

OBJECTIVE To review the road safety situation in developed and developing countries compared with the Arabian Gulf countries and suggest a strategy to improve it. The role of road engineers in reducing accidents is highlighted. METHODS This is a retrospective study of road traffic accidents (RTAS) for a period from 1988 to 1998 in Arabian Gulf Countries. The data was taken from the Directorat...

introduction: tegrity is the most important component for transferring genetic information sperm dna fragmentation is considered a component of male infertility. its assessment comprises conventional semen analysis of which emphasis is placed on its evaluation in fertility clinics. in this study, we investigate the relationship between sperm parameters of motility, morphology, concentration, an...

this study analyzed the determinants of the productivity of smallholder arable crop farmers with a particular focus on land fragmentation using the simpson index as measures of land fragmentation in imo state of nigeria. data collected by using structured questionnaire and interview schedules were analyzed using simple descriptive statistics; simpson index and regression analysis. results showe...