Increasing economy’s resistance against the menace of sanctions, various risks, shocks, and internal and external threats are one of the main national policies which can be implemented through bank investments. Investment project selection is a complex and multi-criteria decision-making process that is influenced by multiple and often some conflicting objectives. This paper studies portfolio inve...

To address the issue of resource co-allocation with deadline constraint in grids, a novel approach is proposed to evaluate the deadline-guarantee of co-allocation schemes that obtained from conventional co-allocation policies. Based on this approach, a hybrid-policy coallocation model is also proposed to address the issue of deadline-constrained resource co-allocation in grid environments. The ...

The bias of TCP’s congestion avoidance mechanism against connections with long Round Trip Times (RTT) is a known fact. Many alternate congestion avoidance policies have been proposed to improve the fairness. Though the proposed policies attempt to address and resolve the fairness issue, we show in this paper that they tend to be harmful to connections that traverse either slow links like 56Kbps...

following the failure of economic development and growth policies and dissatisfactions resulting from applying these policies, related discussions to life satisfaction was proposed among various experts. in their opinion, different factors can be effectual on life satisfaction. one of the most important factors is social welfare. this study is a social survey and it has used questionnaire for c...

in vietnam, municipal solid waste (msw) has being become increasing complex due to variety of reasons as the increasing quantity, changing composition of msw, rising public awareness and municipal administration policies among different cities and surrounding communities. there is not currently an efficient management system in place for facilities such as storage, collection, transfer, tran...

As the rate at which disk drives read and write data is improving at a much slower pace than the speed of processors, I/O has risen to become the bottleneck in high-performance computing for many applications. A possible approach to address this problem is to schedule parallel I/O operations explicitly. To this end, we propose two new I/O scheduling algorithms and evaluate the relative performa...