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 ...

The need for specification of X-ray beam quality arises from the fact that several parameters are required to realize and measure operational quantities accurately. X-ray measurements are affected by target material, tube ...

Several scientific researches are underway to investigate the possibility of using various green energies. Hydrogen gas is a candidate of such research, since its use as a fuel in automobiles releases pure water, a recyclable ...

Exposure to ionizing radiation from 40K and those in the decay chains of 238U and 232Th for a prolonged time poses danger to human population. While 238U, 232Th and 40K are universally present in rock and soil, their ...

NORM is the major contributor of human exposure to radiations. Health hazard risks emanating from this exposure are lives threatening and they include ailments such as cancer, eye lens opacity, tumors and fibroids. A good ...