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Search Results: 1 - 10 of 7375 matches for " Muhammad Asif "
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Plasma Internal Energy for Toroidal Elliptic Plasmas with Triangularity  [PDF]
Muhammad Asif
Journal of Modern Physics (JMP) , 2011, DOI: 10.4236/jmp.2011.21002
Abstract: The Plasma internal energy is not conserved on a magnetic surface if nonlinear flows are considered. The analysis here presented leads to a complicated equation for the plasma internal energy considering nonlinear flows in the collisional regime, including viscosity and in the low-vorticity approximation. Tokamak equilibrium has been analyzed with the magnetohydrodynamics nonlinear momentum equation in the low vorticity case. A generalized Grad–Shafranov-type equation has been also derived for this case.
Steady Magnetohydrodynamic Equations for Quantum Plasmas  [PDF]
Muhammad Asif, Umar Bashir
Journal of Modern Physics (JMP) , 2012, DOI: 10.4236/jmp.2012.312233
Abstract: Steady Magnetohydrodynamic (MHD) Equations of force, density and energy for quantum plasmas have been derived. These equations constitute our Steady Magnetohydrodynamic model for quantum plasmas. All the quantum effects are contained in the last term of quantum force equation and in the last three terms of quantum Energy Equation, so-called Bohm potential and may be valuable for the description of quantum phenomena like tunneling.
Muhammad Asif
Economics and Finance Review , 2011,
Abstract: This article investigates the long run and short run effect of exchange rate changes on foreign aid of Pakistan by applying unit root and cointegration analysis. The data set includes annual observations for the period 1973-2010. Moreover, this study examines four alternative but equally plausible hypotheses, each with different policy implications. These are: i) foreign aid cause Real Exchange Rate (the conventional view), ii) Real Exchange Rate cause foreign aid, iii) There is a bi-directional causality between the two variables and iv) Both variables are causality independent (although highly correlated). The empirical evidence findssignificant positive relationship between exchange rate changes and foreign aid in long run, as well as in short run. Both in the long and short run, foreign aid is affected by exchange rate changes.
The Professional Medical Journal , 2008,
Abstract: Introduction: The term “acute abdomen” denotes any sudden spontaneousnon-traumatic disorder whose chief manifestation is in the abdominal area. There is frequently a progressive underlyingintra-abdominal disorder, the correct early diagnosis and treatment of which is essential for a favorable outcome.Objectives: (I) To find out the most common causes of acute abdomen. (II) To compare the preoperative assessmentwith postoperative diagnosis. Design: A Non-interventional Analytical (Comparative) study. Setting: Emergencydepartment of Combined Military Hospital Kharian. Period: Oct 2001 to Mar 2002. Patients & Methods: Total of 220patients who presented with acute abdomen. Results: The most frequent cause was found to be Acute Appendicitis,followed by Nonspecific abdominal pain, acute cholecystitis, acute intestinal obstruction and perforated duodenal ulcer.Preoperative diagnosis was wrong in 9.5% (n=21) of cases. Conclusion: Acute appendicitis was found to be the mostcommon cause of acute abdomen and the single most important cause of acute abdominal pain causing greatdiagnostic difficulties. the preoperative diagnostic accuracy can be increased especially in female of child bearing ageby using modern diagnostic tools especially laparoscopy.
Acceptance of Islamic Banking in Muslim Customers A Comparative Study on Flaws of Interest Based Banking vs Positive Aspects of Islamic Banking
International Review of Management and Business Research , 2012, DOI: 20/12/2012
Abstract: The Islamic banking is one of the most rapidly emerging trends in many different parts of the world. The interest based banking system has now been very evident to the economies regarding their impacts on the economies and the individuals involved. The study analyzed the key determinants of the Islamic banking in the banking customers living in Peshawar KPK using a self-administered questionnaire to collect data from the customers. Using a multiple regression model the study analyzed the data collected from a sample of 45 respondents and the results of the study suggest that the positive aspects of the Islamic banking and the flaws of the interests based has a positive relationship with the acceptance of the Islamic banking in Muslims across Peshawar
TCP/IP Based Intelligent Load Management System in Micro-Grids Network Using MATLAB/Simulink  [PDF]
Muhammad Ali, Muhammad Zakariya, Muhammad Asif, Amjad Ullah
Energy and Power Engineering (EPE) , 2012, DOI: 10.4236/epe.2012.44038
Abstract: Computerized power management system with fast and optimal communication network overcomes all major dicrepencies of undue or inadequate load relief that were present in old conventional systems. This paper presents the basic perception and methodology of modern and true intelligent load management scheme in micro grids topology by employing TCP/IP protocol for fast and intelligent switching. The network understudy performs load management and power distribution intelligently in a unified network. Generated power is efficiently distributed among local loads through fast communication system of server in the form of source and clients in the form of loads through TCP/IP. The efficient use of information between server and clients enables to astutely control the load management in a power system of micro grids system. The processing time of above stated system comes out to be 10ms faster than others which ensure very less delay as compared to conventional methods. The Micro Grids system operating through TCP/IP control has been implemented in MATLAB/Simulink and results have been verified.
Technical efficiency analysis of hybrid maize production using translog model case study in District Chiniot, Punjab (Pakistan)  [PDF]
Syed Asif Ali Naqvi, Muhammad Ashfaq
Agricultural Sciences (AS) , 2013, DOI: 10.4236/as.2013.410072

In Pakistan, maize accounts for 5.93 percent of the total cropped area and 4.82 percent of the value of agricultural production. Given high cost of the production, there is a belief that it is difficult to boost profitability without enhancing use of pricey inputs. Maximum likelihood estimates of stochastic frontier model were estimated and determinants of technical efficiency were calculated. Using Cobb Douglas model estimated maximum likelihood coefficients for all inputs were significant and showed signs according to expectations. The evaluation with the different models gives different technical efficiencies, which shows that technical efficiency estimations are extremely sensitive to the functional form specified.

Forensics Issues in Cloud Computing  [PDF]
Aqil Burney, Muhammad Asif, Zain Abbas
Journal of Computer and Communications (JCC) , 2016, DOI: 10.4236/jcc.2016.410007
Abstract: Cloud computing is an emerging technology that is being widely adopted throughout the world due to its ease-of-use. Organizations of all types can use it without pre-requisites such as IT infra-structure, technical skills, managerial overload, storage capacity, processing power, and data recovery or privacy setup. It can be availed by all clients as per their needs, expectations and budget. However, cloud computing introduces new kinds of security vulnerabilities that need to be ad-dressed. Traditional “Computer Forensics” deals with detection, preemption and prevention of IT triggered frauds and crimes but it lacks the ability to deal with cybercrimes pertaining to cloud computing environment. In this paper, we focus on forensics issues in cloud computing, assess limitations of forensic team and present the obstacles faced during investigation.
Energy-Efficient MTC Data Offloading in Wireless Networks Based on K-Means Grouping Technique  [PDF]
Juma Saidi Ally, Muhammad Asif, Qingli Ma
Journal of Computer and Communications (JCC) , 2019, DOI: 10.4236/jcc.2019.72004
Abstract: Machine-type communication (MTC) devices provide a broad range of data collection especially on the massive data generated environments such as urban, industrials and event-enabled areas. In dense deployments, the data collected at the closest locations between the MTC devices are spatially correlated. In this paper, we propose a k-means grouping technique to combine all MTC devices based on spatially correlated. The MTC devices collect the data on the event-based area and then transmit to the centralized aggregator for processing and computing. With the limitation of computational resources at the centralized aggregator, some grouped MTC devices data offloaded to the nearby base station collocated with the mobile edge-computing server. As a sensing capability adopted on MTC devices, we use a power exponential function model to compute a correlation coefficient existing between the MTC devices. Based on this framework, we compare the energy consumption when all data processed locally at centralized aggregator or offloaded at mobile edge computing server with optimal solution obtained by the brute force method. Then, the simulation results revealed that the proposed k-means grouping technique reduce the energy consumption at centralized aggregator while satisfying the required completion time.
Hydro and Wind Power Integration: A Case Study of Dargai Station in Pakistan  [PDF]
Shahbaz Awan, Muhammad Ali, Muhammad Asif, Amjad Ullah
Energy and Power Engineering (EPE) , 2012, DOI: 10.4236/epe.2012.44028
Abstract: Pakistan is facing acute energy crises since last few years. Due to shortage of fuel oil and its sky touching prices, it seems very uneconomical to generate electricity from fuel oil. In order to generate cheap electricity we have to rely on renewable energy resources. To address these challenges, wind power generation is among the popular options in the world which is now being considered in Pakistan as well. However unremitting change in wind speed from calm to stormy introduces real challenges. Storing wind energy in batteries during the periods of low demand seems an expensive option, especially when dealing with large scale power generation. Due to incessantly varying nature of wind speed, it is not feasible to rely only on wind power for cheap power production. Also, it is not thriftily possible to construct separate transmission line. However if we integrate wind power with hydro power, we can utilize the maximum possible transmission capacity. Existing hydro power station operating in that area or pumped storage scheme can be used. This paper is an attempt to analyze coordination of wind generation with hydro power in those areas of Pakistan where both wind and hydro power sources exist. In this paper, different issues have been analyzed taking case study of Dargai. This paper is first attempt in Pakistan about integration of wind and hydro power to draw some general conclusions and to point out some areas in which further research can be done.
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