We present a problem on risk pooling and cost allocation in inventory of spare parts motivated in the oil and gas sector. Spare parts are held to facilitate operational conditions. Multiple inventory plants control their stock per separate. In practice, however, they supply each other when needed. Risk pooling is a source of savings in this situation. Under a centralized inventory solution, the...

Allocation of limited testing efforts to a software development project is a complex task for software managers. The challenges become difficult when the nature of the development process is considered in the dynamic environment. Numerous software reliability growth models have been proposed in last one decade to minimize the whole testing effort expenditures, but generally under static assumpt...

Ground stations (GS) are required during spacecraft (SC) operations to provide communications links between operation teams and the SC systems. Traditionally, the allocation of ground resources to SC is a highly constrained problem with sufficiently few solutions, where the process is conducted manually: stations are selected for communication support with certain SC for certain periods. There ...

This paper deals with the modeling of the strategic allocation of greenhouse gases emission allowances in the EU-wide trading market that results from Kyoto agreement implementation. An M -matrix game is formulated where the players are countries or groups of countries that may have a strategic influence through their allocation of emission allowances and the payoffs are the welfare gains of th...

The Precast Concrete Industry (PCI) is one of the major contributors to the national economy and can be categorised as labor-intensive industry. It is currently experiencing shortcomings in terms of delivery products at a competitive cost and time. This is mainly due to the inefficiencies associate with planning and scheduling of skilled operators within crews configurations. This paper present...

In many traditional auctions, the seller or auctioneer is only interested in the price she gets for the auctioned objects. That is, the sole objective is to raise revenue. But, whenever the government sells some rights, it is often the case that the government is also interested in who will get the rights, and how the rights will be used. Generally speaking, when a market arises after an alloca...

Abstract– A mine ventilation system is an important component of an underground mining system. It provides a sufficient quantity of air to maintain a suitable working environment. Therefore, the mine ventilation system should be kept at a highly reliable level and also be maintained at a very reliable level during the whole service time of the coal mine. However, in reality, failures of a mine ...

Plug-in hybrid electric vehicles (PHEVs) have potential to reduce greenhouse gas (GHG) emissions in the U.S. light-duty vehicle fleet. GHG emissions from PHEVs and other vehicles depend on both vehicle design and driver behavior. We pose a twice-differentiable, factorable mixed-integer nonlinear programming model utilizing vehicle physics simulation, battery degradation data, and U.S. driving d...

the market for carbon dioxide rights emerged as one of the tools applicable to the implementation of the measures adopted by the kyoto protocol to combat climate change. in this paper we analyze the case of spain, because their peculiar administrative division into seventeen autonomous communities, it is relevant to a detailed study of emissions and allowances of the industries that make up ...