A comprehensive review of GSS research literature indicates that in over 200 different GSS research experiments done in the last decade, GSS generally increases group decision quality or effectiveness. However, 90% of the experiments report that GSS does not increase and frequently even decreases group satisfaction. This can lead to the rejection of adoption and/or use of GSS in organizations, ...

This paper introduces an imaging algorithm with application of fractional Fourier transform (FrFT) for ground moving train imaging by Ku-band ground-based radar. In view of the fact that the train speed is varying when acrossing the radar beam, the multiple Doppler parameters are estimated corresponding to different range positions, i.e., they are estimated from different sections of data in Fr...

We developed a hydrogen arc discharge exfoliation method for the synthesis of graphene sheets (GSs) with excellent electrical conductivity and good thermal stability from graphite oxide (GO), in combination with solution-phase dispersion and centrifugation techniques. It was found that efficient exfoliation and considerable deoxygenation of GO, and defect elimination and healing of exfoliated g...

Background Gamisoyosan (GSS) is an herbal formula which has been used to treat women's diseases for several hundred years in Korea. GSS is one of the three most common prescriptions among women and is used to treat menopausal symptoms. Fatty liver disease is also common in postmenopausal women and can precede more severe diseases, such as steatohepatitis. The present study compared the effects ...

Distributed learning ofers education beyond the walls of the traditional classroom. Students may not have the opportuni~ to ever interact as a whole class unit. Thty interact individually or as small sub-groups of the whole class in distributed sites. Understanding the dynamics of communication is important to the design of the distributed learning environment. Studies have focused on how compu...

With the rapid advance of information technologies, human beings increasingly rely on computers to accumulate, process, and make use of data. Knowledge discovery techniques have been proposed to automatically search large volumes of data for patterns. Group Support Systems (GSS) play an important role in streamlining group activities and improving group outcomes. Various attempts have been made...

The paper describes the propagation of a thin laser beam which passes through a hot turbulent jet, perpendicularly to the flow direction, using geometrical optics approximation. From the modelling of the random propagation direction of the laser beam along its whole path, the diffusion coefficient of the turbulent jet is determined by means of a shape optimization technique in which a genetic a...