January 2011

Review on fly ash-based geopolymer concrete without Portland Cement

  The consumption of Ordinary Portland Cement (OPC) caused pollution to the environment due to the emission of CO2. As such, alternative material had been introduced to replace OPC in the concrete. Fly ash is a by-product from the coal industry, which is widely available in the world. Moreover, the use of fly ash is more environmental friendly and save cost compared to OPC. Fly ash is rich in silicate and...

Author(s): Mohd Mustafa Al Bakri, H. Mohammed, H. Kamarudin, I. Khairul Niza and Y. Zarina

January 2011

Spiking neural network-based control chart pattern recognition

  Due to an increasing competition in products, consumers have become more critical in choosing products. The quality of products has become more important. Statistical process control (SPC) is usually used to improve the quality of products. Control charting plays the most important role in SPC. Control charts help to monitor the behavior of the process, to determine whether it is stable or not. Unnatural...

Author(s): Medhat H. A. Awadalla, I. I. Ismaeil and M. Abdellatif Sadek

January 2011

Low-cost treatment for attenuation of nitrate from groundwater

  Elevated nitrate levels in drinking water by nitrate are an evolving public health concern, since nitrate can undergo endogenous reduction to nitrite, and nitrosation of nitrites can form N-nitroso compounds, which are potent carcinogens. Nitrates are also responsible for a number of health disorders, both in human beings and animals. Thus, nitrate reduction from water has become critical and the need of the...

Author(s): B. S. Shankar