Wireless Sensor Networks (WSNs) are consist of independent distributed sensors with storing, processing, sensing and communication capabilities to monitor physical or environmental conditions. There are number of challenges in WSNs because of limitation of battery power, communications, computation and storage space. In the recent years, computational intelligence approaches such as evolutionar...

normal 0 false false false en-us x-none ar-sa microsoftinternetexplorer4 introduction: some of the most frequently used webometric indicators for evaluating and ranking academic web sites are web impact factor, number of web pages and number of inlinks. the present study evaluated and ranked top iranian medical universities according to the webometric indicators. methods: the present cross-sect...

during the past two decades, the use of bioplastics as an alternative to regular plastics has received much attention in many different industries. the mechanical and degradable properties of bioplastic are important for their utilization. in this research cellulose of wheat straw and glycerol were mixed by different weight ratios and then reinforced by using date palm fibers. to prepare the bi...

in this work, a new aluminum matrix nanocomposite reinforced with beta-magnesium aluminide nanoparticles was produced by powder metallurgy technique. the prealloyed al-40 wt.% mg intermetallic ingot was milled for 100 hours to synthesize β-al3mg2 nanoparticles with the average size of 25 nm. different amounts of nanoparticles were added to al matrix powder and the mixture was then milled for 10...

introduction: the current research seeks to evaluate the framework of the mentioned endeavors through the survey of the quality of the web pages of iran's medical universities and the existence of their organizational metalinks. methods: in this descriptive study, 40 web pages of the iran's medical universities were studied. the existence of the web pages, the type of the library soft wares, th...

o bjectives: heat-polymerized acrylic resin has been the most commonly used denture base material for over 60 years. however, the mechanical strength of acrylic resin is not adequate for long-term clinical performance of dentures. consequently, fracture is a com- mon clinical occurrence, which often occurs in the midline of denture base.this study aimed to evaluate the efficacy of cold cure and...

In this paper we investigate how “self-awareness'', through on-line self-monitoring and measurement, coupled with intelligent adaptive behaviour in response to observed data, can be used to offer adaptive web service for the end-user. Through this mechanism the end-user will notice a Quality of Service (QoS) improvement, every time a web page is requested. We first describe the general principl...

The problem of information overload on the Internet has received a great deal of attention in the recent years. Recommender Systems have been introduced as one solution to this problem. These systems aim at directing the user toward the items that best meet her needs and interests. Recent studies have indicated the effectiveness of incorporating domain knowledge in improving the quality of reco...