The study examines the effect of transformation ratio in power transmission system on engine efficiency as a function of passenger vehicle velocity (m = 1400 kg) with energy-saving vehicle drive. The study also presents working range in driving phases for energy-saving speed control up to 120 km/h for a simplified overall engine performance map for SI engine. Understanding of the presented cons...

We pursue an analytical approach to energy consumption characterization of large scale mobile ad hoc networks. An energy aware hybrid routing strategy is proposed and analyzed. Referred to as Energy Aware GEo-location aided Routing (EAGER), this protocol optimally blends proactive and reactive routing strategies for energy efficiency. Specifically, EAGER partitions the network into cells and pe...

The relatively low utilization of servers in data-center environments when running I/O-intensive applications is a key concern for efficiency. Energy optimization, by throttling power consumption, is an essential operational goal. Since processors are the most demanding of the components constituting a server, energy optimization has focused on regulating processor consumption. However, more re...

Dye-sensitized solar cell (DSSC) is a potential candidate to replace conventional silicon-based solar cells because of high efficiency, cheap cost, and lower energy consumption in comparison with silicon chip manufacture. In this report, mixed-phase (anatase and rutile nanoparticles) TiO2 photoanode was synthesized to investigate material characteristics, carriers transport, and photovoltaic pe...

objective: the aims of this study were to determine energy efficiency and co2 use pattern of grape production in zanjan province, iran by a non-parametric method of data envelopment analysis (dea). methods: initial data were collected using a face to face questionnaire from 42 orchards in abhar city of zanjan province which is one of the most important centers of grape production in iran. the d...