In this work, the existing trade-off between time synchronization quality and energy is studied for both large-scale and small-scale fading wireless channels. We analyze the clock offset estimation problem using one-way, two-way and N-way message exchange mechanisms affected by Gaussian and exponentially distributed impairments. Our main contribution is a general relationship between the total ...

This paper reviews the barriers to large-scale use of small-scale energy systems. It places the review in the context of the size of the challenge both in terms of the numbers of people who still need access to modern energy carriers and in the levels of finance to provide this access. It concludes that the main problems related to access are not technical but are motivational, financial and in...

The issue of management and allocation of resources in cloud computing environments, according to the breadth of scale and modern technology implementation, is a complicated issue. Issues such as: the heterogeneity of resources, resource dependencies to each other, the dynamics of the environment, virtualization, workload diversity as well as a wide range of management objectives of cloud servi...

This paper describes an assessment of the enhanced geothermal system (EGS) resource base of the conterminous United States, using constructed temperature at depth maps. The temperature at depth maps were computed from 3 to 10 km, for every km. The methodology is described. Factors included are sediment thickness, thermal conductivity variations, distribution of the radioactive heat generation a...

The main purpose of this study is to give support irrigation in dry season and reduce the gap between electric power demand and generation by using renewable energy source solar pump. Every year water level is going down 2m/year. As a result scarcity of ground water is increasing, which has a harmful effect on economy. On the other side, electric power demand is growing up for commercial, indus...

introduction the high energy consumption is one of the serious problems in poultry industry. the poultry industry consume about five percent of total energy sources in different countries, with consideration of losses, it increases up to 16-20%. in the year 2003 also, the iranian chicken meat consumption per capita was 13.3 kg, while in the year 2013 it increased to 25.9 kg (fao, 2014). it show...

UNLABELLED The Comprehensive Resource Model is a groundbreaking psychotherapeutic treatment modality with broad possibilities for use with the military veteran population. OBJECTIVE This article describes a clinical case example where this modality was used with a veteran presenting with severe PTSD symptoms. METHOD Six 60-75 minute treatment sessions are described. Symptoms were measured b...

the objective of this study was to assess the influence of some socioeconomic characteristics on purposes for which mobile phone was used by small scale farmers in the gezira state, sudan. the total number of small- scale farmers in the state for 2013-2014 growing season was estimated to be 5000. ten percent of the population was used using the simple random sampling technique. the collected da...