The enhanced frequency based keypad is designed to speed up the typing process. This paper will show that the proposed layout will increase the typing speed and be flexible for thumb. Traditional cell phone keypad is not a scientific keypad from the frequency point of view. Approaches have been explored to speed up the typing process. We found that no manufacturer has considered the frequency o...

Thanks to the technology, mobile devices including cell phones have become an integral part of the modern life. Therefore, public concern pertaining to short-term and long-term possible adverse effects of using cell phone and electromagnetic radiation exposure of it is growing rapidly. There are various studies by which the positive and negative results have been demonstrated. The relationship ...

Conventionally, wireless-controlled robots use RF circuits, which have the drawbacks of limited working range, limited frequency range and limited control. Use of a mobile phone for robotic control can overcome these limitations. It provides the advantages of robust control, working range as large as the coverage area of the service provider, no interference with other controllers and up to twe...

W e were shocked and dismayed by CMAJ's recent call for regulation of cellular telephone use in cars. 1 Good legislation addresses clearly identified problems, is based on scientific evidence and can be enforced. The legislation CMAJ has demanded would meet none of these criteria. Your assumption that wireless phones cause traffic deaths and injuries was apparently based on a study that made no...

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ferritin is a macromolecule and is responsible for the long term iron storage function in human serum and plasma. recent studies have highlighted the role of cell phone exposure on central nervous system, immune function and reproduction. the aim of this study was to investigate whether the human serum ferritin level could be interfered by the exposure to the 900 mhz gsm cell phones. fifty huma...