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Volume 14 Number 1 Year 2013

9 articles in this issue 

Nicholas Mastricola, Ossama Abdelkhalik

In this paper, the individual relativistic perturbations are simulated and compared, for two orbit cases: (1) a medium altitude eccentric earth orbit (MEO), and (2) a Molniya orbit. The results of the simulations are presented in graphical and statistical... see more

 

Amro Abd al fattah Amara

Mixed culture is more suitable to adapt more flexible fermentation process and produce different product simultaneously. In this study a mixed Bacillus culture was investigated for their ability to produce the bioplastic "Polyhydroxybutyrate" and both of ... see more

 

Abdullah Al-Mamun, Zaki Zainuddin

Ecological status of Malaysia is not as bad as many other developing nations in the world. However, despite the enforcement of the Environmental Quality Act (EQA) in 1974, the water quality of Malaysian inland water (especially rivers) is following deteri... see more

 

Zarina Zakaria, Alina Rahayu Mohamed, Noor Hasyierah Mohd Salleh, Siti Nursheela Abu Mansor

In the fish aquaculture management, fish feed is identified as a major problem. The high cost and scarcity of fishmeal in formulated feeds have led to the use of other protein sources such as earthworms and animal by-product. Earthworm is an alternative p... see more

 

Aminul Islam

This paper presents a technique for designing a variability aware subthreshold SRAM cell. The architecture of the proposed cell is similar to the standard read-decoupled 8-transistor (RD8T) SRAM cell with the exception that the access FETS are replaced wi... see more

 

M. H. Habaebi, J. Chebil, A. G. Al-Sakkaf, T. H. Dahawi

Long-Term Evolution (LTE) is a recently evolving technology characterized by very high speed data rate that allows users to access internet through their mobile as well as through other electronic devices.  Such technology is intended to support var... see more

 

Amin Kashani, Davood Jalali-vahid, Siamak Hossainpour

Laminar forced convection of a nanofluid consisting of water and Al2O3 in a horizontal annulus has been studied numerically. Two-phase mixture model has been used to investigate thermal behaviors of the nanofluid over constant temperature thermal boundary... see more

 

A. B. Kasaeian, S. Daviran

In this study, a new model of a solar combined ejector-vapor compression refrigeration system has been considered. The system is equipped with an internal heat exchanger to enhance the performance of the cycle. The effects of working fluid and operating c... see more

 

Mohammad Arif Sobhan Bhuiyan

This study is carried out to compute empirically global, diffuse and direct solar radiation on a horizontal surface for the ten districts equally distributed all over Bangladesh (20o34΄and 26o34΄north latitude, 88o01΄ and 92o41΄east longitude) as well... see more