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Search Results: 1 - 10 of 24415 matches for " Muhammad Ali "
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Social Organization of Transgender Sex Workers  [PDF]
Anwaar Mohyuddin, Muhammad Ali
Open Journal of Applied Sciences (OJAppS) , 2013, DOI: 10.4236/ojapps.2013.37054
Abstract: This paper is an attempt to document life of male sex workers as transgender in Pakistan and to describe their cultural practices with reference to ritual performs on different occasion. Qualitative research methods combing in-depth interviews, FGDs, and observation were employed to gather information. An effort has been made to investigate the cultural life of the transgender and the pattern of their social interaction within the community as well as with the outsiders. Analysis based on thematic description of the themes generated after reviewing data. The research process revealed that males who were engaged in the sex industry have two types of sociological division: first, young and having male identity with potential to transform in transgender; while other transgender plays dual roles: a) within sex worker community as transgender women, b) male outside the transgender community. These males fulfill their socio-psychological and economic needs through entrance in the transgender community. Most of them consider themselves as having feminine soul and masculine body. The male engaging in sex work is a complex
New Applications to Solitary Wave Ansatz  [PDF]
Muhammad Younis, Safdar Ali
Applied Mathematics (AM) , 2014, DOI: 10.4236/am.2014.56092

In this article, the solitary wave and shock wave solitons for nonlinear Ostrovsky equation and Potential Kadomstev-Petviashvili equations have been obtained. The solitary wave ansatz is used to carry out the solutions.

Modelling and Simulation of Solidification Phenomena during Additive Manufacturing of Bulk Metallic Glass Matrix Composites (BMGMC)—A Brief Review and Introduction of Technique  [PDF]
Muhammad Musaddique Ali Rafique
Journal of Encapsulation and Adsorption Sciences (JEAS) , 2018, DOI: 10.4236/jeas.2018.82005
Abstract: Despite a wealth of experimental studies focused on determining and improving mechanical properties and development of fundamental understanding of underlying mechanisms behind nucleation and growth of ductile phase precipitates from melt in glassy matrix, still, there is dearth of knowledge about how these ductile phases nucleate during solidification. Various efforts have been made to address this problem such as experiments in microgravity, high resolution electron microscopy and observation in synchrotron light after levitation but none have proved out to be satisfactory. In this study, an effort has been made to address this problem by modelling and simulation. Current state of the art of development, manufacturing, characterisation and modelling and simulation of bulk metallic glass matrix composites is described in detail. Evolution of microstructure in bulk metallic glass matrix composites during solidification in additive manufacturing has been presented with the aim to address fundamental problem of evolution of solidification microstructure as a result of solute partitioning, diffusion and capillary action. An overview is also presented to explain the relation of microstructure evolution to hardness and fracture toughness. This is aimed at overcoming fundamental problem of lack of ductility and toughness in this diverse class of materials. Quantitative prediction of solidification microstructure is done with the help of advanced part scale modelling and simulation techniques. It has been systematically proposed that 2-dimensional cellular automaton (CA) method combined with finite element (for thermal modelling) tools (CA-FE) programmed on FORTRAN and parallel simulated on ABAQUS would best be able to describe this complicated multiphysics phenomenon in most efficient way. Focus is laid on quantification of methodology by which modelling and simulation can be adopted and applied to describe evolution of microstructure in this important class of materials. It is found that proposed methodology is meritorious.
Probabilistic Modelling of Microstructural Evolution in Zr Based Bulk Metallic Glass Matrix Composites during Solidification in Additive Manufacturing  [PDF]
Muhammad Musaddique Ali Rafique
Engineering (ENG) , 2018, DOI: 10.4236/eng.2018.104010
Abstract: Bulk metallic glass and their composites (BMGMCs) are a new class of materials which possess superior mechanical properties as compared to existing conventional materials. Owing to this, they are potential candidates for tomorrow’s structural applications. However, they suffer from poor ductility and little or no toughness which render them brittle and they manifest catastrophic failure under applied force. Their behavior is dubious, unpredictable and requires extensive experimentation to arrive at conclusive results. In present study, an effort has been made to design bulk metallic glass matrix composites by the use of modeling and simulation. A probabilistic cellular automaton (CA) model is developed and described in present study by author which is used in conjunction with earlier developed deterministic model to predict microstructural evolution in Zr based BMGMCs in additive manufacturing liquid melt pool. It is elaborately described with an aim to arrive at quantitative relations which describe process and steps of operations. Results indicate that effect of incorporating all mass transfer and diffusion coefficients under transient conditions and precise determination of probability number play a vital role in refining the model and bringing it closer to a level that it could be compared to actual values. It is shown that proposed tailoring can account for microstructural evolution in metallic glasses.
Production and Characterization of Zr Based Bulk Metallic Glass Matrix Composites (BMGMC) in the Form of Wedge Shape Ingots  [PDF]
Muhammad Musaddique Ali Rafique
Engineering (ENG) , 2018, DOI: 10.4236/eng.2018.104015
Abstract: Bulk metallic glass matrix composites (BMGMC) are unique materials of future having excellent mechanical properties (such as high hardness, strength and profound elastic strain limit). However, they exhibit poor ductility and suffer from catastrophic failure on the application of force. The reasons behind this are still not very well understood. In this study, an effort has been made to overcome this pitfall by solidification processing. Zr based BMGMCs are produced in the form of “as cast” wedges using vacuum arc melting and suction casting button furnace. The idea is to study the effect of cooling rate and inoculation on formability during solidification. Adjustment, manipulation and proper control of processing parameters are observed to reflect upon the quality of ingots such as improved castability, proper mold filling and defect free casting as characterized by NDT. Further, thermal analysis, optical microscopy and hardness measurement confirmed the formation and evolution of in-situcomposite structure. This is first footprint of pathway towards sustainable manufacturing of these alloys in future.
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.
Development of a Course Sequence for an Interdisciplinary Curriculum
Muhammad Ali
Higher Education Studies , 2012, DOI: 10.5539/hes.v2n3p1
Abstract: Interdisciplinary curriculum development is challenging in the sense that materials from more than one discipline have to be integrated in a seamless manner. A faculty member has to develop expertise in multiple disciplines in order to teach an interdisciplinary course, or the course has to be team-taught. Both approaches are difficult to implement. There are administrative issues, such as proportional posting of expenditures across departmental budgets for the courses taught collaboratively, or courses with students from multiple departments. This paper describes the development and teaching of a sequence of bioinformatics related interdisciplinary courses for incorporation into undergraduate biology curricula. Three courses were developed with collaboration between the Departments of Biology and Computer Science at Tuskegee University. Each course contains contents from different subjects, traditionally considered to be virtually independent of each other. The courses have contents from biology, computer science, statistics, mathematics and biochemistry. The first two courses, Introduction to Bioscience Computing and Biological Algorithms & Data Structures, cover the computing and computer science fundamentals necessary for the informed use of bioinformatics tools. The third is an introductory course in bioinformatics. The focus was on teaching the effective use of bioinformatics tools, as compared to development of bioinformatics tools which is more relevant at the graduate level. Administrative issues encountered are also discussed. This work was supported by a NSF HBCU-UP grant.
On some applications of subordination and superordination of multivalent functions involving the extended fractional differintegral operator
Ali Muhammad
Le Matematiche , 2012,
Abstract: In this paper, we apply fractional differintegral operator and study various properties of differential subordination and superordination.
On differential subordinations and argument inequalities associated with the generalized hypergeometric functions
Ali Muhammad
Le Matematiche , 2011,
Abstract: The main object of this paper is to derive several interesting argument properties of a linear operator H_{p,q,s}^{m,μ}(α ) associated with the generalized hypergeometric functions.
The Professional Medical Journal , 2005,
Abstract: Objective: To find the maternal and fetal morbidity and mortality in elective versus emergencycaesarean section. Design: Prospective Setting: Obstetrics and Gynaecology Unit-III, Nishtar Hospital, Multan.Period: One year. Material and methods: 150 patients who underwent caesarean section were evaluated for maternaland fetal complications. Results: Overall intra-operative complications rate was 8.67%. 12 out of 13 complicationsoccurred in emergency group. Postoperative complication was 34.66% and out of it emergency versus elective were90.38% vs 9.62% respectively. Similarly maternal mortality was 666/100,000 in emergency group. Fetal complicationswere also higher in emergency group in this study i.e. 22.2% vs 10.86% in emergency vs elective group. Similarlyprenatal morbidity was 15.04% in emergency group vs 8.10% in elective group. Fetal outcome was 100% in electivevs 94.69% in emergency caesarean section group. In one year period of study caesarean birth rate turned out as17.56% which is quite comparable to the rate in western countries but the rate does not reflect true caesarean birthin a given population because of the fact that this hospital being a tertiary referral center drains only complicated casesof the wide spread area of south Punjab. Higher incidence of caesarean birth can be reduced without increasing themorbidity and mortality. Furthermore, proper sterilization and prophylactic antibodies can reduce the infectious morbidityafter both emergency and elective caesarean section. Conclusions: Higher incidence of emergency caesarean sectionis a major contribution for increased rate of maternal and fetal morbidity and mortality in caesarean deliveries. This canbe reduced by improving the quality and availability of antenatal care of masses. We can also reduce the incidenceof caesarean birth without increasing perinatal morbidity and mortality.
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