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International Journal of Minerals,Metallurgy and Materials 2011年第4期18卷 502-507页

作者： Kartini Ahmad roslinda nazar Ioan Pop Centre for Foundation Studies International Islamic University Malaysia46350 Petaling JayaSelangorMalaysia School of Mathematical Sciences Faculty of Science and TechnologyUniversiti Kebangsaan Malaysia43600 UKM BangiSelangorMalaysia Faculty of Mathematics University of ClujR-3400 ClujCP 253Romania

The steady laminar mixed convection boundary layer flow and heat transfer of a micropolar fluid near the stagnation point on a stretched vertical surface with prescribed skin friction were *** governing partial differential equations were transformed into a system of ordinary differential equations,which were then solved numerically using the shooting *** for the stretching velocity,the local Nusselt number,the temperature,and the velocity profiles are presented for various values of the mixed convection parameter λ and material parameter K when the Prandtl number is equal to *** assisting（heated plate） and opposing（cooled plate） flow regions are *** is found that dual solutions exist for both assisting and opposing flows.

关键词： boundary layer flow dual solutions micropolar fluids mixed convection skin friction

MHD Flow Towards a Permeable Surface with Prescribed Wall Heat Flux

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Chinese Physics Letters 2009年第1期26卷 169-171页

作者： Anuar Ishak roslinda nazar Ioan Pop School of Mathematical Sciences Universiti Kebangsaan Malaysia 43600 UKM Bangi Selangor Malaysia Faculty of Mathematics University of Cluj R-3400 Cluj CP 253 Romania

The steady magnetohydrodynamic （MHD） mixed convection flow towards a vertical permeable surface with prescribed heat flux is investigated. The governing partial differential equations are transformed into a system of ordinary differential equations, which is then solved numerically by a finite-difference method. The features of the flow and heat transfer characteristics for different values of the governing parameters are analysed and discussed. Both assisting and opposing flows are considered. It is found that dual solutions exist for the assisting flow, besides the solutions usually reported in the literature for the opposing flow.

关键词： field emission molybdenum dioxide enhancement factor

Boundary Layer on a Moving Wall with Suction and Injection

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Chinese Physics Letters 2007年第8期24卷 2274-2276页

We investigate the boundary-layer flow on a moving permeable plate parallel to a moving stream. The governing equations are solved numerically by a finite-difference method. Dual solutions are found to exist when the ... 详细信息

关键词： coated conductor buffer layer self-epitaxy CeO2

Magnetohydrodynamic flow over a moving plate in a parallel stream with an induced magnetic field

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International Journal of Minerals,Metallurgy and Materials 2010年第4期17卷 397-402页

作者： Khamisah Jafar roslinda nazar Anuar Ishak Ioan Pop Faculty of Engineering and Build Environment Universiti Kebangsaan Malaysia Bangi 43600SelangorMalaysia School of Mathematical Sciences Universiti Kebangsaan Malaysia Bangi 43600SelangorMalaysia Faculty of Mathematics University of Cluj R-3400Cluj CP 253Romania

A viscous boundary layer flow of an electrically-conducting fluid over a moving flat plate in a parallel stream with a constant magnetic field applied outside the boundary layer parallel to the plate was investigated. The goveming system of partial differential equations was transformed to ordinary differential equations using a similarity transformation. The similarity equations were then solved numerically using a finite-difference scheme known as the Keller-box method. Numerical results of the skin friction coefficient, velocity profiles, and the induced magnetic field profiles were obtained for some values of the moving parameter, magnetic parameter, and reciprocal magnetic Prandtl number. The results indicate that dual solutions exist when the plate and the fluid move in the opposite directions up to a critical value of the moving parameter, whose value depends on the value of the magnetic parameter.

关键词： boundary layer induced magnetic field magnetohydrodynamic flow moving plate

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International Journal of Minerals,Metallurgy and Materials 2010年第2期17卷 149-153页

作者： Anuar Ishak Nor Azizah Yacob roslinda nazar Ioan Pop School of Mathematical Sciences Faculty of Science and Technology Universiti Kebangsaan Malaysia Faculty of Computers and Mathematical Sciences Universiti Teknologi MARA Pahang Faculty of Mathematics University of Cluj

The steady laminar boundary layer flow adjacent to a vertical plate with prescribed surface temperature immersed in an incompressible viscous fluid,where the effect of thermal radiation was taken into consideration,was *** governing partial differential equations were transformed into a system of ordinary differential equations using similarity transformation,before being solved numerically by the shooting *** assisting and opposing buoyant flows were *** is found that dual solutions exist for both cases. Moreover,numerical results show that the heat transfer rate at the surface decreases in the presence of the radiation effect.

关键词： boundary layer heat transfer thermal radiation similarity solution

Mixed convection boundary layer flow pasta vertical cone embedded in a porous medium subjected to a convective boundary condition

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Propulsion and Power Research 2016年第2期5卷 118-122页

作者： Haliza Rosali Anuar Ishak roslinda nazar loan Pop Department of Mathematics Faculty of ScienceUniversii Putra MalaysiaUPMSerdamg 43400SelangorMalaysia School of Mathematical Sciences Faculty of Science and TechnologyUniversiti Kebangsaan MalaysiaUKM43600 BangiSelangorMalaysia Department of Mathematics Babes-Bolyai UniversityCP 253400082 Cluj-NapocaRomania

In the present analysis,we study the steady mixed convection boundary layer flowpast a vertical cone embedded in a porous medium subjected to a convective *** governing partial differential equations are reduced to the coupled nonlinearordinary differential equations using a similarity transformation before being solved numeri-cally by a shooting *** assisting and opposing flows are *** influence ofthe convective heat transfer parameter is analysed and discussed through *** are found to exist for the case of opposing flow.

关键词： Mixed convection Porous medium Convective boundarycondition Dual solutions Fluid mechanics

A Mathematical Modeling of 3D Cubical Geometry Hypothetical Reservoir under the Effect of Nanoparticles Flow Rate,Porosity,and Relative Permeability

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Computer Modeling in Engineering & Sciences 2024年第11期141卷 1193-1211页

作者： Mudasar Zafar Hamzah Sakidin Abida Hussain Loshini Thiruchelvam Mikhail Sheremet Iskandar Dzulkarnain roslinda nazar Abdullah Al-Yaari Rizwan Safdar Department of Fundamental and Applied Sciences Universiti Teknologi PETRONASBandar Seri Iskandar32610Malaysia School of Mathematics Actuarial and Quantitative Studies(SOMAQS)Asia Pacific University of Technology and Innovation(APU)Kuala Lumpur57000Malaysia Center for Research in Enhanced Oil Recovery Universiti Teknologi PETRONASBandar Seri Iskandar32610Malaysia Department of Physical and Mathematical Sciences Faculty of ScienceUniversiti Tunku Abdul RahmanPerak31900Malaysia Laboratory on Convective Heat and Mass Transfer Tomsk State UniversityTomsk634050Russia Department of Mathematical Sciences Faculty of Science&TechnologyUniversiti Kebangsaan MalaysiaBangi43600Malaysia Henan Province International Collaboration Lab of Forest Resources Utilization School of ForestryHenan Agricultural UniversityZhengzhou450002China Higher Institution Centre of Excellence(HICoE) Institute of Tropical Aquaculture and Fisheries(AKUATROP)Universiti Malaysia TerengganuKuala Nerus21030Malaysia

This study aims to formulate a steady-state mathematical model for a three-dimensional permeable enclosure(cavity)to determine the oil extraction rate using three distinct nanoparticles,SiO_(2),Al_(2)O_(3),and Fe_(2)O_(3),in unconventional oil *** simulation is conducted for different parameters of volume fractions,porosities,and mass flow rates to determine the optimal oil *** impact of nanoparticles on relative permeability(kr)and water is also *** simulation process utilizes the finite volume ANSYS *** study results showed that when the mass flow rate at the inlet is low,oil recovery goes *** addition,they indicated that silicon nanoparticles are better at getting oil out of the ground(i.e.,oil reservoir)than Al_(2)O_(3)and Fe_(2)O_(3).Most oil can be extracted from SiO_(2),Al_(2)O_(3),and Fe_(2)O_(3)at a rate of 97.8%,96.5%,and 88%,respectively.

关键词： Unconventional reservoir cubical cavity oil recovery rate reservoir engineering mathematical modeling

Boundary Layer Stagnation-Point Slip Flow and Heat Transfer towards a Shrinking/Stretching Cylinder over a Permeable Surface

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Applied Mathematics 2015年第3期6卷 466-475页

作者： Nor Azian Aini Mat Norihan Md. Arifin roslinda nazar Norfifah Bachok Faculty of Science and Mathematics Universiti Pendidikan Sultan Idris Perak Malaysia Institute for Mathematical Research Universiti Putra Malaysia Selangor Malaysia School of Mathematical Sciences Universiti Kebangsaan Malaysia Selangor Malaysia Department of Mathematics Faculty of Science Universiti Putra Malaysia Selangor Malaysia

In this paper, the boundary layer stagnation-point slip flow and heat transfer towards a shrinking/stretching cylinder over a permeable surface is considered. The governing equations are first transformed into a system of non-dimensional equations via the non-dimensional variables, and then into self-similar ordinary differential equations before they are solved numerically using the shooting method. Numerical results are obtained for the skin friction coefficient and the local Nusselt number as well as the velocity and temperature profiles for some values of the governing parameters, namely the velocity slip parameter (α), the thermal slip parameter (β), the curvature parameter (γ) and the velocity ratio parameter (c/a). The physical quantities of interest are the skin friction coefficient and the local Nusselt number measured by f’’(0) and –θ’(0), respectively. The numerical results show that the velocity slip parameter α increases the heat transfer rate at the surface, while the thermal slip parameter β decreases it. On the other hand, increasing the velocity slip parameter α causes the decrease in the flow velocity. Further, it is found that the solutions for a shrinking cylinder (c/ac/a>0) case. Finally, it is also found that the values of f’’(0) and –θ’(0) increase as the curvature parameter γ increases.

关键词： Boundary Layer Heat Transfer Numerical Solution Shrinking/Stretching Cylinder Slip Flow Stagnation-Point Suction/Injection

Summarizing Software Artifacts： A Literature Review

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Journal of Computer Science & Technology 2016年第5期31卷 883-909页

作者： Najam nazar Yan Hu He Jiang Key Laboratory for Ubiquitous Network and Service Software of Liaoning Province School of Software Dalian University of Technology Dalian 116621 China State Key Laboratory of Software Engineering Wuhan University Wuhan 430072 China

This paper presents a literature review in the field of summarizing software artifacts, focusing on bug reports, source code, mailing lists and developer discussions artifacts. From Jan. 2010 to Apr. 2016, numerous summarization techniques, approaches, and tools have been proposed to satisfy the ongoing demand of improving software performance and quality and facilitating developers in understanding the problems at hand. Since aforementioned artifacts contain both structured and unstructured data at the same time, researchers have applied different machine learning and data mining techniques to generate summaries. Therefore, this paper first intends to provide a general perspective on the state of the art, describing the type of artifacts, approaches for summarization, as well as the common portions of experimental procedures shared among these artifacts. Moreover, we discuss the applications of summarization, i.e., what tasks at hand have been achieved through summarization. Next, this paper presents tools that are generated for summarization tasks or employed during summarization tasks. In addition, we present different summarization evaluation methods employed in selected studies as well as other important factors that are used for the evaluation of generated summaries such as adequacy and quality. Moreover, we briefly present modern communication channels and complementarities with commonalities among different software artifacts. Finally, some thoughts about the challenges applicable to the existing studies in general as well as future research directions are also discussed. The survey of existing studies will allow future researchers to have a wide and useful background knowledge on the main and important aspects of this research field.

关键词： mining software repositories mining software engineering data machine learning summarizing softwar eartifacts summarizing source code

Boundary Layer Flow over a Continuously Moving Thin Needle in a Parallel Free Stream

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Chinese Physics Letters 2007年第10期24卷 2895-2897页

作者： Anuar Ishak Rosllinda nazar Ioan Pop School of Mathematical Sciences Universiti Kebangsaan Malaysia 43600 UKM Bangi Selangor Malaysia Faculty of Mathematics University of Cluj R-3400 Cluj CP 253 Romania

We investigate the boundary-layer flow on a moving isothermal thin needle parallel to a moving stream. The governing equations are solved numerically by a finite-difference method. Dual solutions are found to exist wh... 详细信息

关键词： coated conductor buffer layer self-epitaxy CeO2