S. A. Hussain

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The concept of agile process models has gained great popularity in software (SW) development community in past few years. Agile models promote fast development. This property has certain drawbacks, such as poor documentation and bad quality. Fast development promotes use of agile process models in small-scale projects. This paper modifies and evaluates(More)
A rise in inlet air temperature may lower the rate of heat dissipation from air cooled computing servers. This introduces a thermal stress to these servers. As a result, the poorly cooled active servers will start conducting heat to the neighboring servers and giving rise to hotspot regions of thermal stress, inside the data center. As a result, the(More)
Rise in inlet air temperature increases the corresponding outlet air temperature from the server. As an added effect of rise in inlet air temperature, some active servers may start exhaling intensely hot air to form a hotspot. Increase in hot air temperature and occasional hotspots are an added burden on the cooling mechanism and result in energy wastage in(More)
Cognitive radio is an emerging technology in wireless communication for efficient utilization of the underutilized spectrum and alleviates the spectrum scarcity. Smart antennas efficiently utilize the spectrum in cognitive radio networks. In this paper, the cognitive system consists of the secondary user, which is equipped with the multiple antennas in the(More)
Contamination levels of antibiotics, namely ofl oxacin (OFL), ciprofl oxacin (CIP), levofl oxacin (LEV), oxytetracycline (OTC), and doxycycline (DOX), were quantifi ed in wastewater, soil, plants, and underground water of surrounding areas of the pharmaceutical industry in Lahore. HPLC with a DAD detector, C-18 column, and solid-phase cartridges were used(More)