We present an empirical model for the electron energy relaxation time. It is based on Monte-Carlo simulation results, and is applicable to all relevant diamond and zinc-blende structure semiconductors. The energy relaxation times are expressed as a function of the carrier and lattice temperatures and, in the case of semiconductor alloys, the material composition. keywords: energy relaxation tim...

Keyword extraction attracts much attention for its significant role in various natural language processing tasks. While some existing methods for keyword extraction have considered using single type of semantic relatedness between words or inherent attributes of words, almost all of them ignore two important issues: 1) how to fuse multiple types of semantic relations between words into a unifor...

An energy efficient routing is a significant issue in the designing of Wireless Sensor Network (WSN) protocols. This paper presents a comprehensive survey on energy efficient routing protocols in WSNs. Keywords— Energy Efficiency, Network Lifetime, Routing Protocols, Wireless Sensor Network (WSN), Ant Colony

In recent years, many private corporations and government organizations have digitized corpuses of legacy paper documents. Often, these organizations hope to take advantage of digital representations to transform costly manual tasks associated with paper archives into less-costly computer-assisted tasks. The most common approach toward automated information extraction is through inverted indexi...

Energy efficiency in buildings and facilities has become an important part of the efforts for reducing environmental pollution. In order to develop strategies for efficient allocation of energy resources aimed at reducing power consumption, certain electrical quantities needed for analysis must be measured and monitored. In this paper, we propose a low-cost architecture of the remote electrical...