For sustainability of future civilization, development of alternative clean energy technologies to replace fossil fuels has become one of the most crucial and challenging problems of the last few decades. Thin film solar ...

The demand for silicon in microelectronics has put a lot of strain on the availability and eventually high prices for silicon type of solar cells. In this work, nickel doped cadmium sulphide (CdxNi1−x S) was investigated. ...

Audio noise monitoring and control has been a subject of research for several decades. Researchers have developed audio noise monitoring systems which rely on computers, internet and mobile telephone services which are ...

Radioactive elements are found everywhere in the environment. Detectable amounts occur naturally in soil, rocks, water, air and vegetation and may be ingested if they enter the food chain, or, inhaled. Inhaled and ingested ...

Throughout their lives, human beings are continually exposed to radiation from terrestrial radionuclides particularly 40K, 238U, 232Th and their decay products. The radiation, usually in the form of gamma rays and alpha ...

Microstrip antennas are used for transmitting and receiving electromagnetic signals. The transmitted signals can be reflected back within the building. This affects the strength of signal transmission. Polarization of ...