At present, a major concern regarding data centers is their extremely high energy consumption and carbon dioxide emissions. However, because of the over-provisioning of resources, the utilization of existing data centers is, in fact, remarkably low, leading to considerable energy waste. Therefore, over the past few years, many research efforts have been devoted to increasing efficiency for the ...

It is anticipated that the eco-friendly sustainable energy sources, e.g., solar, wind and hydro, etc, will be widely used in future green wireless communication networks. In this chapter, the characteristics of green energy are presented, and some existing energy-efficient green approaches for infrastructure-based wireless networks are investigated. The optimal deployment of green base stations...

This study aimed to present a model for portfolio risk premium assessment of companies listed in Tehran Stock Exchange. In order to achieve this purpose, monthly data of 150 companies listed in Tehran Stock Exchange during 2007-2017 was used. In this study, the predictive powers of FamaFrench three-factor model [11], Carhart four-factor model [1], Fama - French five-factor model [24], Brousseau...

-------------------------------------------------------------------ABSTRACT---------------------------------------------------Green computing is one of the emergent computing technology in the field of computer science engineering and technology to provide Green Information technology (Green TI/GC). It is mainly used to protect environment, optimize energy consumption and keeps Green environmen...

Energy-awareness in services can be obtained through annotations regarding energy consumption. In this paper, annotations are given as Green Performance Indicators (GPIs). A service is annotated in terms of its structure, of the used IT platform, and of development costs, human resources, and environment impact. GPIs relate to service development, deployment, and maintenance. An approach is pro...

Light quality is a common environmental factor which influences the metabolism of biochemical substances in algae and leads to response algal growth development. <i>Pyropia yezoensis</i> kind economic macroalgae that naturally grows intertidal zone where light environment changes dramatically. In present study, <i>P. thalli were treated under white (control) monochromatic ligh...

The electric power system is an important infrastructure that plays the important role in the economical status of a nation. It is, therefore, very important and useful to design a green energy distributed power system .This paper presents the concept of power management strategies of a green energy distributed power system .The green energy distributed power system is one way to assure self-he...

Seawater reverse osmosis desalination (SWRO) requires less energy compared with the distillation method and thus is an important technology except Middle Eastern countries whereenergy costs are higher. Recently, even Middle Eastern countries where the distillation method is still a major technology, have begun adopting the RO method in new desalinationplants in line with government ...

Green Security is a new research field aimed at defining and investigating security solutions under an energy-aware perspective. The aim of Green Security is twofold: 1) evaluating the actual security mechanisms both considering the energy costs and the effectiveness; 2) building new security mechanisms by considering energy efficiency from the design phase. In this paper, we first provide a de...