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QAU
Islamabad, Pakistan

Adeel M.,NWFP UET | Latif A.,QAU | Muaz M.,NWFP UET | Mahmud S.A.,NWFP UET
Proceedings - 10th International Conference on Frontiers of Information Technology, FIT 2012 | Year: 2012

Main research in focus nowadays in the area of wireless sensor networks (WSN) is optimizing solution of energy gain. Techniques for optimizing power usage in WSNs have been developed in this paper. The goal is achieved by exploiting a decrease in cross-over distance between error correcting coded (ECC) information signals and its un-coded version. A decrease in total energy gain is observed from the practical data acquisitioning. From analysis presented in this paper, the overall 22% energy gain in ECC coded data was observed with the theoretical analysis and results obtained using MATLAB. The modulation schemes under test were MPSK, MFSK and MQAM. Furthermore, the presented idea has opened ways for researchers to exploit other means to bring a decrease in cross-over distance so that further gain of energy in WSNs can be possible. © 2012 IEEE. Source


Khan I.A.,Government College University at Faisalabad | Noor M.,Government College University at Faisalabad | Rehman A.,Government College University at Faisalabad | Farid A.,Government College University at Faisalabad | And 2 more authors.
EPJ Applied Physics | Year: 2015

Zinc oxide films are deposited on Si substrates by thermal evaporator for different evaporation times (ET). XRD pattern shows the development of different diffraction peaks related to Zn, ZnO and Zn2SiO4 phases which confirms the deposition of composite film. The orientation transformation is observed with increasing ET. The maximum peak intensity of ZnO (1 0 1) plane is observed at 3 h ET. The dislocation density observed in ZnO (1 0 1) plane varies from 1.53 × 10-3 nm-2 to 8.94 × 10-3 nm-2. The lattice parameters of ZnO are found to be a = 3.243 Å and c = 5.197 Å. FTIR analysis confirms the formation of ZnO films. SEM microstructures exhibit the formation nano-wires, nano-bars, nano-strips and nano-needles. The optical energy band gap of ZnO films deposited for various ET varies from 3.98 eV to 4.06 eV. Results show that the peak intensity of ZnO (1 0 1) plane, orientation transformation and the presence of Si content are responsible to increase the energy band gap of ZnO films. © EDP Sciences, 2015. Source


Razzaq H.,University of Liverpool | Qureshi R.,QAU | Schiffrin D.J.,University of Liverpool
Electrochemistry Communications | Year: 2014

An anthraquinone-Au140 gold nanoparticle hybrid system has been synthesised and its electron transfer properties investigated. The incorporation of nanoparticles as part of a molecular linker resulted in fast electron transfer through an otherwise blocking film. © 2013 Elsevier B.V. All rights reserved. Source


Adeel M.,NWFP UET | Muaz M.,NWFP UET | Latif A.,QAU | Mahmud S.A.,NWFP UET
Proceedings - 10th International Conference on Frontiers of Information Technology, FIT 2012 | Year: 2012

The GPS data received by a receiver, embedded into a moving vehicle, encounter the distance inaccuracy due to close-in multipath of reflected signals of adjacent moving vehicles. The said inaccuracy cause a failure of sub-lane detection of the vehicle that pass through a specific lane. Increasing the sensitivity level of the received signals, the inaccuracy can be controlled up to a great extent. In this paper we are interested in finding out the best condition to enhance the sensitivity level of received symbols. This is achieved through up-gradation of probability of detection of the received signals. Similarly, the process is refined up to a great extent by selecting the best discriminator function response (DFR) for the purpose of decreasing root mean square error (RMSE). Moreover, the best DFR is selected in order to increase the convergence rate for a certain discriminator which results in increase of sensitivity level of the received GPS symbols. The best optimized solution provides up to 4cm accuracy in selected DGPS receiver. © 2012 IEEE. Source


Bakht J.,University of Agriculture, Peshawar | Shah R.,University of Agriculture, Peshawar | Shafi M.,University of Agriculture, Peshawar | Khan M.A.,QAU
Pakistan Journal of Botany | Year: 2010

The present field study was carried at Malakandher Research Farms KPK Agricultural University, Peshawar, using randomized complete block design. Seeds of four maize varieties (viz., Azam, Sarhad white, Pahari and Sarhad yellow) were primed with 5 different priming sources i.e. Polyethylene glycol (PEG), Potassium nitrate (KNO3), Sodium thiosulphate (Na2S2O3) and Water (H2O) for 17 hours. Various priming sources and maize varieties had a significant (p<0.05) effect on growing degree days, plant height, number of plants at harvest, number of ears plant-1, number of grains cob-1, thousand grain weight, biological yield, grain yield and harvest index. Growing degree days were maximum (1865) in unprimed seeds. Maximum grains cob-1 (419) and biological yield (8060 kg ha-1) were recorded in KNO3 primed treatments. Among varieties, Sarhad yellow produced maximum (420) grains cob-1 and biological yield Maximum 1000 grain weight (231 g) and grain yield of 3498 kg ha-1 were recorded in Na2S2O3 primed treatments. Among varieties, maximum (239 g) 1000 grain weight and grain yield (3666 kg ha-1) were produced by Sarhad yellow. Source

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