Climate change is a key problem of the 21st century. mainly caused by anthropogenic CO2 emissions, and one solution to this capture store in deep coal seams, where it immobilized adsorption surface. Here we propose modify with methyl orange (MO), typical dye that also major pollutant hydrosphere removed thereby. Thus, raw MO-modified coals were characterized investigate their thermal stabilitie...

To satisfy the stringent requirement of capacity enhancement in wireless networks, cooperative relaying is envisioned as one of the most effective solutions. In this paper, we study the capacity enhancement problem by way of Relay Stations (RSs) placemen to achieve an efficient and scalable design in nextgeneration relay-based broadband wireless access networks. To fully exploiting the performa...

This paper addresses capacity enhancement of a band-limited direct-sequence code-division multiple-access system by using a weighted despreading function (WDF) in the receiver. An ideal Gaussian channel with perfect power control is assumed. The system performance is measured by the signalto-interference-plus-noise ratio of the decision variable derived in the frequency domain, the bandwidth ef...

The application of Smart Antenna technology to wireless communication systems has attracted considerable attention over the last decade or so, as a means of capacity enhancement. Here, the application of space-time processing using a single antenna array at the base-station has been considered in order to obtain interference reduction (both co-channel and multi-path) as well as range extension....

Working memory (WM) capacity improvement is impacted by sleep, and possibly by N-methyl-D-aspartate (NMDA) agonists such as D-cycloserine (DCS), which also affects procedural skill performance. However, the mechanisms behind these relationships are not well understood. In order to investigate the neural basis underlying relationships between WM skill learning and sleep, DCS, and both sleep and ...

The rapidly increasing demand for PCS has provided the impetus to design adaptive antenna arrays to improve spectral efficiency and enhance system capacity. With increasing data rate in some PCS application like DECT( Digital European Cordless Telecommunications), higher BER would degrade the system performance further. An adaptive antenna array testbed using 12 elements was built to evaluate i...