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Search Results: 1 - 10 of 18926 matches for " Murad Ali "
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Unsteady Incompressible Couette Flow Problem for the Eyring-Powell Model with Porous Walls  [PDF]
Haider Zaman, Murad Ali Shah, Muhammad Ibrahim
American Journal of Computational Mathematics (AJCM) , 2013, DOI: 10.4236/ajcm.2013.34041
Abstract:

This work is concerned with the influence of uniform suction or injection on unsteady incompressible Couette flow for the Eyring-Powell model. The resulting unsteady problem for horizontal velocity field is solved by means of homotopy analysis method (HAM). The characteristics of the horizontal velocity field and wall shear stress are analyzed and discussed. Pade approximants and Taylor polynomials are also found for velocity profile and are used to make the maximum error as small as possible. The graphs of the error for the Pade approximation and Taylor approximation are drawn and discussed. Convergence of the series solution is also discussed with the help of h-curve and interval of convergence is also found.

METHOD FOR GENERATING DC-DC CONVERTERS WITH REQUIRED CHARACTERISTICS
Murad Ahmed Ali Taher
International Journal of New Computer Architectures and their Applications , 2012,
Abstract: This paper proposes an algorithmic method for generating DCa€“DC converters with predetermined characteristics. This method uses the Main Topological Matrix MTM. The definition and attributes of the MTM are stated. The common properties for single-switch DC-DC converters are described. The proposed method has unique advantages over other methods. This method is fully algorithmic. In addition, this method basses on the design by parts, that facilitates the design of power electronic circuits. Moreover, by some examples we will show how this method used for generating all sub-class (sub-family) of DC-DC converters with predetermined characteristics (e.g. galvanic isolation).
Effects of Hall Current on MHD Boundary Layer Second-Order Viscoelastic Fluid Flow Induced by a Continuous Surface with Heat Transfer  [PDF]
Haider Zaman, Murad Ali Shah, Farhan Khan, Qaiser Javed
American Journal of Computational Mathematics (AJCM) , 2014, DOI: 10.4236/ajcm.2014.43013
Abstract:

Effects of Hall current on heat transfer and magnetohydrodynamic (MHD) boundary layer flow induced by a continuous surface in a parallel free stream of a second-order viscoelastic fluid are studied for uniform suction/injection by taking viscous dissipation into account. Complex nonsimilar solutions to the stream function and temperature are developed by means of an elegant technique, known as homotopy analysis method (HAM). Convergence of the solutions is ensured with the help of -curves. Graphical and tabular results for the effects of Hall current reveal that it has a significant influence on: complex velocity, complex temperature, magnitude of the shear stress at the surface, magnitude of the rate of heat transfer at the surface and on boundary layer thickness.

Implementation of Total Quality Management in Higher Education
Rajesh Kumar Shastri,Murad Ali
Asian Journal of Business Management , 2010,
Abstract: In this paper it has been tried to bring out a clear status of higher education and emergent needs to enhance the quality of higher education. Globalization of higher educational services has become an area of key focus for many countries in post WTO scenario. In order to fuel the socio-economic development of the country, higher education is playing a more active role in our country and this requires a paradigm shift in terms of governance and service delivery. Higher education institutions must become more innovative leading to quality institutions of knowledge production and dissemination. Realizing the importance of higher education, a lot of innovative experiments are being done to improve the performance of this sector. Application of TQM concepts is one of such measures, which will go a long way in revolutionizing the higher education system. The paper attempts to theoretically conceptualize TQM in higher education.
NITROGEN AND PLANT DENSITY EFFECT ON MAIZE YIELD AND YIELD TRAITS
Adnan Khanzada,Murad Ali Khan,Mohammad Akmal
Pure and Applied Biology , 2013, DOI: nil
Abstract: The objective of this research was to study the response of maize Local Vs Commercial hybrid to various levels of nitrogen (N) and plant density (D) for yield (Kg ha-1). Maize local hybrid (Baber) and Commercial hybrid (Poineer-3025) were planted using four levels of nitrogen (00, 75, 150, 225 kg ha-1) and three plant densities (74000, 95000 and 133000 ha-1) at Agronomy Research Farm Malakandher, University of Agriculture Peshawar during summer 2009. Randomized Complete Block Design with split plot arrangement replicated three times was used. Sowing was done by hand at uniform row spacing 75 cm apart & plant densities were maintained at 10cm, 14cm and 18cm distances in rows, respectively. Results revealed that varieties did not differ (p<0.05) in yield or its traits, however, N showed marked difference in the canopy green area index (GAI), plant height, ear per plant, grains ear-1 including thousand grains weight. Plant densities also showed marked changes in the GAI, ear plant-1, grains number ear-1, grain rows ear-1, 1000 grains weight that affected grain yield. The interactions of treatments were found significant (p<0.05) for grain yield due to differences in yield contributing traits. The study suggested that irrespective of variety, higher N 225 kg ha-1 under the D 95,000 ha-1 contributed towards higher yield with relatively higher biomass. It is obvious to planting maize at 14cm distances within 0.75m rows in Peshawar. Nonetheless, varieties both local and/or commercial have shown almost a similar potential under the applied inputs and climate of the area.
The Influence of Computer Assisted Instruction (CAI) in Chemistry on the Students Achievement at Higher Secondary Level
Muzammila Akram , Hafiz Muhammad Ather and Murad Ali
International Journal of Social Sciences and Education , 2011,
Abstract: Instructing chemistry requires Teachers to relate chemical equations and other symbolic notations both to molecular or atomic events and to laboratory observation and data. Traditionally, text books of Chemistry have symbolic notations with minimal pictures leaving the teacher and students to invoke these pictures from words. This paper was designed to find out the influence of computer assisted instruction on the student’s achievement in chemistry and to compare the effectiveness of CAI with conventional instruction at higher secondary school level. Null hypotheses were formulated on the basis of objectives and to test the hypotheses, two experiments of one month duration were conducted in both government and private sectors of Bahawalpur City. The pre-test, post-test control group design was developed for the current study. The achievements of forty (40) students were recorded through pre-test and then students were divided randomly into two groups of twenty (20) in each group. Groups were assigned as control group and experimental group randomly. Ten topics out of the prescribed textbooks of chemistry for class XI were taught, keeping in view that the students had never studied these topics before. The control group was instructed by the lecture while the experimental group was instructed through CAI, under the same conditions. The data obtained through experimentation, was analyzed using statistical methods of mean score and t-test for independent sample. The findings indicated that there was significant influence of CAI on the student’s achievement in both, government and private sectors. However, CAI influence was found to be more significant in private school than government school. Computer-assisted instruction in teaching chemistry proved better than the conventional instruction.
Managing Innovation and Technology in Developing Countries
Murad Ali,Sana Ullah,Pervez Khan
Computer Science , 2009,
Abstract: Innovation and technology management is an inevitable issue in the high end technological and innovative organizations. Today, most of the innovations are limited with developed countries like USA, Japan and Europe while developing countries are still behind in the field of innovation and management of technology. But it is also becoming a subject for rapid progress and development in developing countries. Innovation and technology environment in developing countries are by nature, problematic, characterized by poor business models, political instability and governance conditions, low education level and lack of world-class research universities, an underdeveloped and mediocre physical infrastructure, and lack of solid technology based on trained human resources. This paper provides a theoretical and conceptual framework analysis for managing innovation and technology in developing countries like India and China. We present the issues and challenges in innovation and technology management and come up with proposed solutions.
Beneficial Effects of Pentanema vestitum Linn. Whole Plant on the Glucose and Other Biochemical Parameters of Alloxan Induced Diabetic Rabbits
Ikram Ilahi,Ali Asghar,Shujat Ali,Murad Khan
ISRN Pharmacology , 2012, DOI: 10.5402/2012/478023
Abstract:
Beneficial Effects of Pentanema vestitum Linn. Whole Plant on the Glucose and Other Biochemical Parameters of Alloxan Induced Diabetic Rabbits
Ikram Ilahi,Ali Asghar,Shujat Ali,Murad Khan,Nasrullah Khan
ISRN Pharmacology , 2012, DOI: 10.5402/2012/478023
Abstract: The residents of Lower Dir and Malakand agency, Khyber Pakhtunkhwa, Pakistan, use the dry powder of whole plant of Pentanema vestitum for the treatment of asthma and diabetes. No documented reports are available about the therapeutic action of Pentanema vestitum. The present study was aimed to explore the antihyperglycemic effect of 70% methanol extract of Pentanema vestitum whole plant in glucose-induced nondiabetic hyperglycemic and alloxan-induced diabetic rabbits. During this study, the effects of plant extract on the serum lipid profile, GPT, ALP, bilirubin and creatinine of diabetic rabbits were also studied. The extract of Pentanema vestitum whole plant exhibited significant antihyperglycemic activity in glucose-induced hyperglycemic rabbits. Treatment of alloxan-induced diabetic rabbits with extract significantly reduced the elevated levels of serum glucose, GPT, ALP, bilirubin and creatinine. During the study of lipid profile, the extract proved to be antihyperlipidemic and HDL boosting in diabetic rabbit models. From the finding of the present research, it was concluded that the 70% methanol extract of Pentanema vestitum whole plant has beneficial effects on serum levels of glucose, lipid profile, GPT, ALP, bilirubin, and creatinine of diabetic rabbits. 1. Introduction Diabetes mellitus is a group of metabolic diseases characterized by hyperglycemia resulting from defects in insulin secretion, insulin action, or both. The type of diabetes that occurs due to the loss of insulin producing beta cells of the islets of Langerhans in the pancreas is called type 1 or insulin-dependent diabetes mellitus (IDDM) and the type of diabetes which is due to insulin resistance or reduced insulin sensitivity is called type 2 or non-insulin-dependent diabetes mellitus (NIDDM). The diabetic patients manifest the classic signs and symptoms of chronic hyperglycemia (polydipsia, polyuria, blurred vision, headaches, and rapid weight loss), sometimes accompanied by nausea and vomiting [1]. Hyperglycemia is associated with an alteration in lipid parameters which leads to cardiovascular complications [2]. The incidence of diabetes is increasing worldwide. In Pakistan the prevalence of diabetes is high ranging from 7.6 to 11% [3, 4]. More than 230 million people globally are affected by the disease [5]. Diabetes mellitus is treated by different allopathic medicines. Insulin-dependent diabetes mellitus is treated by subcutaneous administration of exogenous insulin. Non-insulin-dependent diabetes is treated by oral hypoglycemic drugs. The two major groups of oral
The foundation of the theory of the universe dark energy and its nature  [PDF]
Murad Shibli
Natural Science (NS) , 2011, DOI: 10.4236/ns.2011.33023
Abstract: Surprisingly recent astronomical observations have provided strong evidence that our universe is not only expanding, but also is expanding at an accelerating rate. This paper pre- sents a basis of the theory of universe space- time dark energy, a solution of Einstein’s cosmological constant problem, physical interpretation of universe dark energy and Einstein’s cosmological constant Lambda and its value ( = 0.29447 × 10-52 m-2), values of universe dark energy density 1.2622 × 10-26 kg/m3 = 6.8023 GeV, universe critical density 1.8069 × 10-26 kg/m3 = 9.7378 GeV, universe matter density 0.54207 × 10-26 kg/m3 = 2.9213 GeV, and universe radiation density 2.7103 × 10-31 kg/m3 = 1.455 MeV. The interpretation in this paper is based on geometric modeling of space-time as a perfect four- dimensional continuum cosmic fluid and the momentum generated by the time. In this modeling time is considered as a mechanical variable along with other variables and treated on an equal footing. In such a modeling, time is considered to have a mechanical nature so that the momentum associated with it is equal to the negative of the universe total energy. Since the momentum associated with the time as a mechanical variable is equal to the negative system total energy, the coupling in the time and its momentum leads to maximum increase in the space-time field with 70.7% of the total energy. Moreover, a null paraboloid is obtained and interpreted as a function of the momentum generated by time. This paper presents also an interpretation of space-time tri-dipoles, gravity field waves, and gravity carriers (the gravitons). This model suggests that the space-time has a polarity and is composed of dipoles which are responsible for forming the orbits and storing the space-time energy-momentum. The tri-di- poles can be unified into a solo space-time dipole with an angle of 45 degrees. Such a result shows that the space-time is not void, on the contrary, it is full of conserved and dynamic energy-momentum structure. Furthermore, the gravity field waves is modeled and assumed to be carried by the gravitons which move in the speed of light. The equivalent mass of the graviton (rest mass) is found to be equal to 0.707 of the equivalent mass of the light photons. Such a result indicates that the lightest particle (up to the author’s knowledge) in the nature is the graviton and has an equivalent mass equals to 2.5119 x 10-52 kg. Based on the fluidic nature of dark energy, a fourth law of thermodynamics is proposed and a new physical interpretation of Kepler’s Laws are presented. Additionally,
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