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Abbottābād, Pakistan

Shahzad K.,Hazara University | Umer A.I.,Hazara University | Nazir B.,CIIT Abbottabad
ICNSC 2015 - 2015 IEEE 12th International Conference on Networking, Sensing and Control | Year: 2015

In modern data centres (DCs), energy consumption and resource management are challenging tasks. So in large virtualized DCs, performance of applications is highly dependent on energy-Aware DC architecture and smooth network communication between virtual machines (VMs), while minimizing the communication burden to avoid congestion, latency etc. The communication cost of a network can be reduced by minimizing the VMs migration between physical machines (PMs). Therefore customer as well as service providers need cloud computing solutions that not only minimize operational costs, but also total network load. Minimizing the use of energy/network communication overhead with maximum resource utilization in large DCs is a challenging task as computing applications and data are growing so quickly for which increasing larger servers and disks are required to process them fast enough within the required time period. In order to minimize network load and maximize resource utilization in cloud DCs, we simulated our proposed network load-Aware scheduling algorithm that ensures minimum VMs migration while delivering the negotiated Quality-of-Service (QoS). Our simulation also shows results with different bit rates. © 2015 IEEE.

Razzaq A.,CIIT Abbottabad | Razzaq A.,Polytechnic University of Turin | Orefice M.,Polytechnic University of Turin
IEEE Antennas and Propagation Society, AP-S International Symposium (Digest) | Year: 2015

A miniaturized antenna for printed circuits radiating at Industrial Scientific and Medical (ISM) band (center frequency 2.44 GHz) has been designed and simulated. A prototype has been developed, manufactured and tested for reflection coefficient and radiation pattern. Prototype measurement results shows a good agreement with simulations. The size of the antenna is smaller than 0.1 λ. The presence of components around the antenna has been considered, and their effect on the resonance has been studied. The variation of resonant frequency as a function of the component position and orientation has been summarized in a plot. © 2015 IEEE.

Khan K.,CIIT Abbottabad | Sher H.,King Saud University | Iqbal M.,Pakistan Cereal Crops Research Institute | Al-Qurainy F.,King Saud University
African Journal of Agricultural Research | Year: 2011

Maize (Zea mays L.) is the second most important summer cereal crop after wheat in Khyber Pakhtoonkhua province of Pakistan. It occupies more than 27% of the total cropped area of the province, however, with a very low yield as compared to the achievable potential of 10 t ha -1. Such a low average yield is primarily due to a widespread use of low-yielding open-pollinated maize cultivars by farmers in different areas of the province. In the year 2000, Hybrid-oriented maize breeding research work for the development of indigenous maize hybrids was initiated at the cereal crops research institute (CCRI), Pirsabak, Nowshera, Pakistan. The main objective was to evolve single-cross maize hybrids of high yield potential, white kernel and low to medium maturity for the environments of Khyber Pakhtoonkhua province. A large number of replicated field experiments, both on-station and on-farm, were carried out in 2005 and 2006 to evaluate the experimental hybrids. Grain yield, Stover yield, and maturity were among the important traits used in these investigations. A highest grain yield of 9.84 t ha -1, and a Stover yield of 30.56 t ha -1, with maturity earlier than other hybrids, including a leading maize hybrid of private sector (Pioneer-3025) were observed for one of the experimental hybrids, FRW-2 x FRW-8. This hybrid with a few exceptions was invariably found higher yielding and early maturing as compared to other hybrids included in the trials. The new experimental hybrid was officially named as "Kiramat". The results of the current study provided a sound basis for its approval by the 'Provincial Seed Council' and its registration by the 'Federal Seed Certification and Registration Department' for commercial cultivation. © 2011 Academic Journals.

Mosihuzzman M.,University of Karachi | Naheed S.,Jinnah University for Women | Hareem S.,University of Karachi | Talib S.,University of Karachi | And 6 more authors.
Life Sciences | Year: 2013

Aims One of the aims of this research work is the isolation and identification of various constituents of two medicinally important plants (Iris loczyi and Iris unguicularis). Secondly, the prime aim is the biological evaluation of these natural products to discover new potential inhibitors of α-glucosidase enzyme and protein glycation. Main methods Plants of the genus Iris contain a variety of secondary metabolites. Chromatographic techniques were applied for the isolation of different compounds from Iris loczyi and Iris unguicularis. All the isolated compounds were screened for their α-glucosidase enzyme inhibition and antiglycation potential. Key findings It is shown in the results that two compounds (Kaempferol and 8-Methoxyeriodictyol) isolated from plant Iris unguicularis and compounds (Arborinone and 5,7-dihydroxy-2′,6-dimethoxyisoflavone) isolated from plant Iris loczyi possess promising activity against α-glucosidase enzyme as compare to acarbose which is used as a standard α-glucosidase inhibitor in this study. A flavanone (2′,5-dihydroxy-6,7-methylenedioxy) isolated from Iris loczyi was explored as most active anti-glycating agent. Significance α-Glucosidase enzyme is a therapeutic target to treat carbohydrate mediated diseases. In this study various inhibitors of α-glucosidase are identified which might be important for the management of diabetes. Similarly, antiglycation agents may have application for the management of late diabetic complications. © 2012 Elsevier Inc.

Irshad M.,COMSATS Institute of Information Technology | Eneji A.E.,University of Calabar | Hussain Z.,CIIT Abbottabad | Ashraf M.,CIIT Abbottabad
Journal of Soil Science and Plant Nutrition | Year: 2013

Effect of composting on the extractability of plant nutrients in organic wastes is essential for their recycling in sustainable soil fertility management. Therefore, an experiment was carried out to determine the concentrations of total C, total N, extractable P, K, Na and B in five types of fresh and composted manures (namely buffalo, camel, cow, goat and poultry). Laboratory results showed that the extractability of elements varied considerably with the type of composted manure. Total C varied in the order cow > goat > buffalo > poultry > camel while total N was in the order buffalo > poultry > cow > camel > goat. Total C, total N, extractable K and Na decreased with composting, whereas extractable P and B increased. Goat manure had higher pH and EC values than cow and poultry manures whether in fresh or composted samples. A marked increase in the EC value was observed in composted manures, whereas pH was reduced with composting.

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