This paper addresses a general class of nonpreemptive resource-constrained project scheduling problems in which activity durations are discrete functions of committed renewable and nonrenewable resources. We provide a well known 0±1 problem formulation and stress the importance of themodel by giving applications within production and operationsmanagement. Furthermore, we prove that the feasibil...

A recent trend in the design of hybrid energy systems is the development of standardised systems, which can support a variety of applications. The performance of parallel hybrid energy systems can be improved through the application of advanced control methods implemented by a centralised system controller. Optimum resource allocation based on load demand and renewable resource forecast, promis...

The transition from an economy dependent on nonrenewable energy sources to one with higher diversity of renewables will not be a simple process. It requires an important research effort to adapt to the dynamics of the changing energy market, sort costly processes, and avoid overlapping with social interest markets such as food and livestock production. In this review, we analyze the desirable t...

On the other hand, it has often been stated that the tropical rain forests (tall evergreen forests in tropical warm and humid regions) around the world must be protected and conserved for the future generations (1). It has also been stated that it is most important that knowledge about the structure, diversity, and function of these ecosystems has priority in future biological research (2). Unf...

Traded agricultural goods redistribute water, virtually, around the world to satisfy unmet demands while limiting excess water extraction in importing regions. However, gaps remain our understanding of how alternative international trade regimes may alter demands, locally and virtually. Here, we explore global savings virtual impacts such under reference low-carbon scenarios using an integrated...

The subject of this paper is an environmental life cycle assessment (LCA) and life cycle cost analysis (LCCA) of processes needed to construct and maintain representative Swiss asphalt, concrete, and composite pavements (including subbase layers) applicable for the Swiss national road network over a period of 75 years. The environmental indicators analyzed are the global warming potential indic...

During the past two decades, some industries have been moving towards project-centered systems in many modern countries. Therefore, managing simultaneous projects with considering the limitations in resources, equipment and manpower is very crucial. In the real world, project-based organizations are always facing with two main important features. First, the construction projects are decentraliz...

[1] This study quantifies, spatially explicitly and in a consistent modeling framework (Lund-Potsdam-Jena managed Land), the global consumption of both ‘‘blue’’ water (withdrawn for irrigation from rivers, lakes and aquifers) and ‘‘green’’ water (precipitation) by rainfed and irrigated agriculture and by nonagricultural terrestrial ecosystems. In addition, the individual effects of human-induce...

The global population has increased over time, therefore the need for sufficient energy risen. However, many countries depend on nonrenewable resources daily usage. Nonrenewable take years to produce and sources are limited generations come. Apart from that, storing distribution production caused environmental degradation years. Hence, researchers have been actively participating in development...