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Search Results: 1 - 10 of 14002 matches for " Muhammad Adnan Khan "
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The Effects of a Backward Bifurcation on a Continuous Time Markov Chain Model for the Transmission Dynamics of Single Strain Dengue Virus  [PDF]
Adnan Khan, Muhammad Hassan, Mudassar Imran
Applied Mathematics (AM) , 2013, DOI: 10.4236/am.2013.44091

Global incidence of dengue, a vector-borne tropical disease, has seen a dramatic increase with several major outbreaks in the past few decades. We formulate and analyze a stochastic epidemic model for the transmission dynamics of a single strain of dengue virus. The stochastic model is constructed using a continuous time Markov chain (CTMC) and is based on an existing deterministic model that suggests the existence of a backward bifurcation for some values of the model parameters. The dynamics of the stochastic model are explored through numerical simulations in this region of bistability. The mean of each random variable is numerically estimated and these are compared to the dynamics of the deterministic model. It is observed that the stochastic model also predicts the co-existence of a locally asymptotically stable disease-free equilibrium along with a locally stable endemic equilibrium. This co-existence of equilibria is important from a public health perspective because it implies that dengue can persist in populations even if the value of the basic reproduction number is less than unity.

Phosphorus Solubility from Rock Phosphate Mixed Compost with Sulphur Application and Its Effect on Yield and Phosphorus Uptake of Wheat Crop  [PDF]
Kashif Khan, Muhammad Sharif, Imran Azeem, ? Ibadullah, Adnan Anwar Khan, Sajid Ali, Imran Khan, Aamir Khan
Open Journal of Soil Science (OJSS) , 2017, DOI: 10.4236/ojss.2017.712028
Abstract: A field experiment was conducted to determine the effect of sulphur application with Rock phosphate mixed compost on phosphorus (P) solubility and its effect on yield and P uptake of wheat crop. The experiment was laid out in randomized complete block design (RCBD) with three replications at the research farm of The University of Agriculture Peshawar. The experiment was conducted during rabi 2015-16 with plot size of 3 m × 5 m. Nitrogen, phosphorus and potassium were applied at the rate of 120, 90 and 60 kg·ha-1 in the form of urea, compost, or single super phosphate and potassium sulphate, respectively. Elemental sulphur was applied at the rate of 10, 20 and 30 kg·ha-1 at the time of sowing. Results showed that sulphur applied with compost significantly improved wheat yield and yield components, soil organic matter, soil total N and AB-DTPA extractable P contents, plant N and P concentrations and their uptake, plant micronutrients concentration and their uptakes. No significant changes were noted in soil pH, ECe and lime contents. Maximum grain yield of 4076 kg·ha-1, total dry matter yield 9721 kg·ha-1, straw yield 5644 kg·ha-1, plant height 98.3 cm, spike length 11.2 cm, grain per spike 61.0, thousand grain weight 50.2 g were recorded on the application of S at the rate 20 kg·ha-1 with compost. The highest soil organic matter content of 1.41% was
Phosphorous and Foliar Applied Nitrogen Improved Productivity and Quality of Potato  [PDF]
Rashid Waseem Khan Qadri, Imran Khan, Muhammad Muzammil Jahangir, Umair Ashraf, Ghufrana Samin, Ammara Anwer, Muhammad Adnan, Mohsin Bashir
American Journal of Plant Sciences (AJPS) , 2015, DOI: 10.4236/ajps.2015.61016
Abstract: Growth, yield and quality of potato are greatly affected by its nutritional management. Foliar application of urea reduces nitrogen losses and increases plant nitrogen use efficiency. This study was therefore planned to evaluate the effect of soil applied phosphorus (DAP) and foliar application of nitrogenous fertilizer (urea) on growth, yield and quality of potato. Experiment was comprised of four different treatments of phosphorus (DAP, 46% P) and nitrogen (urea, 46% N) including a control. Treatments were T0 (DAP 160 + Urea 300 kg/acre), T1 (DAP 160 + Urea 5 kg/acre), T2 (DAP 100 + Urea 6 kg/acre) and T3 (DAP 120 + Urea 8 kg/acre). DAP fertilizer was given as basal dressing at the time of sowing. Foliar applications of nitrogenous fertilizer (urea) were given after 30 of sowing with one week interval in five split doses. Results indicated that T3 remained better regarding productivity and quality of potato. The overall fertilizer efficacy regarding yield and quality was: T3 > T2 > T1 > T0. However, Vitamin C was found maximum in T0.
Accelerated Assistant to SubOptimum Receiver for Multi Carrier Code Division Multiple Access System
Muhammad Adnan Khan,Muhammad Umair,Muhammad Aamer Saleem Choudry
Computer Science , 2014,
Abstract: The Multiple Input Multiple output system are considered to be the strongest candidate for the maximum utilization of available bandwidth. In this paper, the MIMO system with the combination of Multi-Carrier Code Division Multiple Access and Space Time Coding using the Alamoutis scheme is considered. A Genetic Algorithm based receiver with an exceptional relationship between filter weights while detecting symbols is proposed. This scheme has better Convergence Rate and Bit Error Rate than the Fast-LMS Adaptive receiver.
Video Analytic for Fall Detection from Shape Features and Motion Gradients
Muhammad Jamil Khan,Hafiz Adnan Habib
Lecture Notes in Engineering and Computer Science , 2009,
The Assessment of Carbon Stocks in the Oak Scrub Forest of Sheringal Valley Dir Kohistan  [PDF]
Alamgir Khan, Adnan Ahmad, Ziaur Rahman, Siraj-ud-Din ?, Rahmatullah Qureshi, Juma Muhammad
Open Journal of Forestry (OJF) , 2015, DOI: 10.4236/ojf.2015.55044
Abstract: The present study estimates carbon stocks (C-stocks) of the Oak scrub forest of Sheringal valley through field inventory. Stem density (ha-1), tree height (m), basal area (m2·ha-1), stem volume (m2·ha-1), stem biomass (t·ha-1), total biomass (t·ha-1), and total C-stock (t·ha-1), were calculated. Stem density varied between 80±8.16 to 510 ± 42 trees ha-1, with a mean value of 226 ± 7 tress ha-1. The average tree height, basal area and stem volume were 5.47 ± 0.76 m, 12.82 ± 0.25 m2·ha-1 and 46.37 ± 0.85 m3
Potential of AM Fungi in Phytoremediation of Heavy Metals and Effect on Yield of Wheat Crop  [PDF]
Asif Khan, Muhammad Sharif, Amjad Ali, Syed Noor Muhammad Shah, Ishaq Ahmad Mian, Fazli Wahid, Bismillah Jan, Muhammad Adnan, Shah Nawaz, Nisar Ali
American Journal of Plant Sciences (AJPS) , 2014, DOI: 10.4236/ajps.2014.511171

A pot experiment was conducted to determine the potential of AM fungi in phytoremediation of heavy metals and its effect on yield of wheat crop. The experiment was conducted in CR Design with four replications during rabi 2012-13. Data showed no increase in grain and shoot yields by AMF inoculation with Zn, Cu, Fe, Mn at different levels but increased root yield, plant height, spike length and hundred grains weight of wheat as compared with uninoculated crop. Post-harvest soil Zn, Cu, Fe and Mn contents of 2, 4.4, 2.8 and 2.9 mg·kg-1, respectively were maximum in uninoculated plants treated with Zn, Cu, Fe, Mn at triple of recommended level. No increases in plant P, N, Zn, Cu, Fe and Mn uptakes were observed by the inoculation of AMF when compared with uninoculated crop. Maximum plant Zn, Cu, Fe and Mn uptakes of 160.5, 206, 1914.6 and 2653 g·ha-1, respectively were recorded in uninoculated plants applied with Zn, Cu, Fe, Mn at triple of recommended levels. Wheat roots infection intensity by AMF increased with higher AMF soil spores density. Results suggest the potential of phytoremediation of contaminated soil to be improved by the inoculation of crops with AMF.

Integrated Effects of Rhizobial Inoculum and Inorganic Fertilizers on Wheat Yield and Yield Components  [PDF]
Muhammad Adnan, Zahir Shah, Asif Khan, Muzamil shah, Gohar Ali Khan, Azaz Ali, Nisar Ali Khan, Nouman Saleem, Shah Nawaz, Saba Akbar, Sonia Samreen, Kanwal Zaib
American Journal of Plant Sciences (AJPS) , 2014, DOI: 10.4236/ajps.2014.513222

An experiment was conducted in pots under natural condition with two factor factorial completely randomized design (CRD) (CRD) to investigate the integrated effect of rhizobia inoculums and inorganic fertilizers on growth and yield of wheat crop at The University of Agriculture Peshawar, during 2012-2013. The experiment was comprised of four inoculums (no, lentil, peas and chickpeas) and two NPK levels (recommended 120:90:60 kg·ha-1 & 20% less of recommended). It was observed that inoculation of wheat by rhizobia significantly increased tillers per plant by a maximum of 42%, plant height by 13%, grain per spike by 16%, 100 grain weight by 10%, biological and grain yield by 10% over un-inoculated (control) treatment. Among inoculums, peas inoculum was found to be the most efficient for all traits except plant height where chickpea inoculum performed better. Similarly recommended NPK significantly increased tillers per plant by 33%, plant height by 19%, grain per spike by 9%, 100 grain weight by 10%, biological yield by 8% and grain yield by 10% compared with 20% less of recommended NPK. Interactive effect of inoculum x NPK was significant for tillers per plant, grain per spike, grain yield and non-significant for plant height, 100 grain weight and biological yield. However, it was evident from the results that inoculation improved all traits both under recommended and 20% less of recommended NPK. The persistent good performance of peas and lentil rhizobial inoculation in wheat growth exhibited that this could be used as a plant growth promoting rhizobacteria for wheat and other cereal crops in prevailing soil and climatic conditions.

Designing of Success Criteria-based Evaluation Model for Assessing the Research Collaboration between University and Industry
Abeda Muhammad Iqbal,Adnan Shahid Khan,Saima Iqbal,Aslan Amat Senin
International Journal of Business Research and Management , 2011,
Abstract: Innovations and inventions are not outcomes of single activity of any organization. This is a resultof collaboration of different partners. Collaborated research of university and industry canenhance the ability of scientist to make significant advances in their fields. The evaluation ofcollaborated research between university and industry has created the greatest interest amongstthe collaborational researchers as it can determine the feasibility and value of thecollaboration. This paper intends to illustrate the evaluation metrics and success criteria- basedevaluation model within university-industry and their collaborated research. For bridging themodel, success criteria that is based on key evaluation metrics has been identified. A successfulCollaboration of university and industry is not dependent on any single metric but instead on theconfluence of multiple metrics from the growth of basic research to commercialization. This studyis intended to provide different evaluating metrics to impound the research collaborationconstraints between university and industry, and to design success criteria to upsurge thesuccessful linkage. For this purpose, we have developed constraints and success criteria basedevaluation metrics (CASEM) model. The proposed model is appropriate for almost all types ofcollaborations, especially research collaborations between university and industry. By adoptingthis model, any university or industry can easily cross the threshold in the grown-up researchcollaborational community.
An Evaluation Framework and Comparative Analysis of the Widely Used First Programming Languages
Muhammad Shoaib Farooq, Sher Afzal Khan, Farooq Ahmad, Saeed Islam, Adnan Abid
PLOS ONE , 2014, DOI: 10.1371/journal.pone.0088941
Abstract: Computer programming is the core of computer science curriculum. Several programming languages have been used to teach the first course in computer programming, and such languages are referred to as first programming language (FPL). The pool of programming languages has been evolving with the development of new languages, and from this pool different languages have been used as FPL at different times. Though the selection of an appropriate FPL is very important, yet it has been a controversial issue in the presence of many choices. Many efforts have been made for designing a good FPL, however, there is no ample way to evaluate and compare the existing languages so as to find the most suitable FPL. In this article, we have proposed a framework to evaluate the existing imperative, and object oriented languages for their suitability as an appropriate FPL. Furthermore, based on the proposed framework we have devised a customizable scoring function to compute a quantitative suitability score for a language, which reflects its conformance to the proposed framework. Lastly, we have also evaluated the conformance of the widely used FPLs to the proposed framework, and have also computed their suitability scores.
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