1,270 research outputs found
Desiring the east: a comparative study of Middle English romance and modern popular sheikh romance
No full textThis thesis comparatively examines a selection of twenty-first century sheikh romances and Middle English romances from the fourteenth and fifteenth centuries that imagine an erotic relationship occurring between east and west. They do so against a background of conflict, articulated in military confrontation and binary religious and ethnic division. The thesis explores the strategies used to facilitate the cross-cultural relationship across such a gulf of difference and considers what a comparison of medieval and modern romance can reveal about attitudes towards otherness in popular romance.
In Chapter 1, I analyse the construction of the east in each genre, investigating how the homogenisation of the romance east in sheikh romance distances it from the geopolitical reality of those parts of the Middle East seen, by the west, to be "other". Chapter 2 examines the articulation of gender identity and the ways in which these romances subvert and reassert binary gender difference to uphold normative heterosexual relations. Chapter 3 considers how ethnic and religious difference is nuanced, in particular through the use of fabric, breaking down the disjunction between east and west. Chapter 4 investigates the way ethnicity, religion and gender affect hierarchies of power in the abduction motif, enabling undesirable aspects of the east to be recast.
The key finding of this thesis is that both romance genres facilitate the cross-cultural erotic relationship by rewriting apparently binary differences of religion and ethnicity to create sameness. While the east is figured differently in Middle English and modern sheikh romance, the strategies they use to facilitate the cross-cultural erotic relationship are similar. The thesis concludes that the constancy of certain attitudes towards the east in both medieval and modern romance reveals a persistence of conservative values in representations of the east in romance
An efficient beam element for the analysis of laminated composite beams of thin-walled open and closed cross sections
No full textA condensed fully coupled beam element for thin-walled laminated composite beams having open or closed cross sections is presented. An analytical technique is used to derive the cross-sectional stiffness of the beam in a systematic manner considering all the deformation effects and their mutual couplings. An efficient finite element approximation is adopted for the transverse shear deformation, which has helped to conveniently implement the C1 continuous formulation required by the torsional deformation due to incorporation of warping deformation. The performance of the element is tested through the solution of numerical examples involving open section I and channel (C) beams and closed section box beams under different loading conditions, and the obtained results are compared with model as well as experimental results available in literature.<br/
Vibration of thin-walled laminated composite beams having open and closed sections
No full textAn efficient technique based on one dimensional beam finite element analysis for vibration of thin-walled laminated composite beams having open and closed sections is proposed in this paper. The developed technique is quite generic which can accommodate any stacking sequence of individual walls and considers all possible couplings between different modes of deformation. The formulation has accommodated the effect of transverse shear deformation of walls as well as out of plane warping of the beam section where the warping can be restrained or released. The inclusion of shear deformation has imposed a problem in the finite element formulation of the beam which is solved successfully utilising a concept developed by one of the authors. A number of numerical examples of open section (I and C sections) beams and closed section box beams are solved by the proposed technique and the results predicted by the proposed model are compared with those obtained from literature as well as detailed finite element analysis using a commercial code. The results show a very good performance of the proposed modelling technique
Experimental and numerical study of the flexural behaviour of ultra-high performance fibre reinforced concrete beams
No full textAbstract not availableM. Singh, A.H. Sheikh, M.S. Mohamed Ali, P. Visintin, M.C. Griffit
A lumped-mass/spring model for localized impact on sandwich structures
No full textJ.A. Kepler, A.H. Sheikh and P.H. Bullhttp://paginas.fe.up.pt/~icss8/welcome.htm
A new element for the analysis of composite plates
No full textAbstract not availableP. Dey, A.H. Sheikh, D. Sengupt
Interfacial failure modelling of diamond bits made of particulate composites
No full textAbstract not availableJ. Xu, A.H. Sheikh, C. X
A Glimpse into the Scholarly Works of Sheikh Muhammad Hayat Sindhi
No full textSindh is considered to be the first region of the subcontinent where the light of Islam illuminated the land.This region has produced numerous scholars who gained renown throughout the Islamic world. Among these luminaries was Sheikh Muhammad Hayat bin Ibrahim Sindhi (d. 1163 A.H.), a prominent Islamic scholar, jurist, and prolific author affiliated with the Hanafi School of jurisprudence. Sheikh Hayat Sindhi was celebrated as one of the leading experts in Hadith, jurisprudence, and various other Islamic disciplines, including Islamic literature. Born in Sindh, Sheikh Hayat Sindhi received his early education from his father. He later traveled to Thatta, where he studied under renowned scholars such as Muhammad MoinThattavi. Seeking advanced knowledge in Islamic disciplines, he migrated to theHaramainSharifain, andeventually settled in Madinah.There he began teaching at Masjid al-Nabawi and dedicated himself to teaching hadith for 24 years. Sheikh Hayat Sindhi authored numerous books on diverse topics related to Islamic studies and the social issues facing Muslim societies. His works, renowned among Islamic scholars, are imbued with wisdom, etiquette, and ethical values derived from the Qur’an, Hadith, jurisprudential insights of eminent scholars, and intellectual reasoning. This study provides a concise biography of Sheikh Hayat Sindhi and examines his contributions across various fields of Islamic knowledge. It also reflects an admiration and appreciation for the profound impact of his scholarly works
An Appraisal of Sheikh abid Sindhi`s Tawali -al- Anwar Sharh Durr –ul- Mukhtar: A Jurisprudential Analysis
No full textSheikh Abid Sindhi (d. 1252 A.H) was one of the most distinguished Islamic scholars, jurists, and prolific authors of the Hanafī School of jurisprudence in the twelfth-century A.H from Sindh. He was widely regarded as one of the foremost experts on Hadīth and one of the omniscient men of the recent era of Hanafī Jurisprudence. His expertise in various branches of Islamic knowledge is unique. The most monumental and significant work of Sheikh Abid Sindhi is a commentary on Durr -ul- Mukhtar named: Tawali -al- Anwar Sharh -al- Durr -ul- Mukhtar. Though the commentaries on Durr -ul- Mukhtar are many and varied, the most famous and widespread commentary is Radd -al- Muhtar by Muhammad Amin ibn Abidin Shami (d.1252 A.H). This book is very crucial among Islamic scholars, but Tawali -al- Anwar is a comprehensive, extensive, rich, and authoritative commentary from every aspect of research. It was studied from the Qur‘ānic perspective, referenced from the verses of the Holy Qur‘ān, Qurānic exegesis (Tafsīr), Hadīths, Science of Hadīth, and jurisprudential approaches of Hanafī scholars and intellectual evidence. Undoubtedly, it deserves to be acknowledged as the finest and comprehensive and informative commentary on Durr-ul-Mukhtar. This study focuses on the author`s biography, methodology, and its importance in the Hanafī School of jurisprudence.
Keywords: Abid Sindhi Tawali-al-Anwar Sharh-al-Durr-ul-Mukhtar, Hanafī School of Jurisprudence, Qurānic exegesis, Tafsīr, Hadīths, Science of Hadīth
Development Of The Helmholtz Solver Based On A Shifted Laplace Preconditioner And A Multigrid Deflation Technique
No full textThe Helmholtz equation is the simplest possible model for the wave propagation. Perhaps this is the reason, despite denying traditional iterative methods like Krylov sub-space methods, Multigrids, etcetera, numerical solution of the Helmholtz equation has been an interesting and abundant problem to researchers since years. The work in this dissertation is also classified as an attempt to develop fast and robust iterative methods for the solution of the Helmholtz equation. This works is specified for applications in seismic imaging-Geophysics, where usually high frequency are used. Thus we will be targeting large wavenumber Helmholtz problems. The finite difference discretization of the Helmholtz equation with typically given Absorbing (Sommerfeld) boundary conditions gives rise to symmetric, non-Hermitian, indefinite linear systems. Resolution of large wavenumber requires larger number of grid points, thus large linear systems. Many (sparse) direct solvers and hybrid (direct and iterative) solvers have been proposed, but it is quite obvious for very large problems that (sparse) direct solvers have been too much depending upon memory, which makes them less acceptable. Quite a lot of work has been invested in researching iterative solution methods for the Helmholtz equation since many decades. The indefiniteness, which increases with respect to an increase in the wavenumber, poses extra problems for iterative solvers and robust solution of indefinite (large) linear system forms an important research activity. Many iterative techniques like domain decomposition methods, multigrid methods and preconditioners for Krylov subspace methods have been proposed but non of them has been quite robust. For multigrid methods, indefiniteness arises difficulties in having both good smoothing property and constructing appropriate coarse-grid approximations of the problem, which are responsible for further reduction of low frequency errors. Many attempts have been spent in algebraic variants of multigrid methods. Some of them works well with limitation of homogeneity. Most of them fails to show satisfactory convergence. The same holds for Krylov subspace methods. One of the difficulties for Krylov methods is to find a cheap and performing preconditioner for the indefinite Helmholtz equation. An overview of preconditioners, ranging from classical to matrix based, for indefinite Helmholtz linear system has been give in this thesis. A matrix-based complex shifted Laplace preconditioner (CSLP) has been seen as best in the available ones. However, with increasing wavenumbers CSLP shows a slow convergence behavior. We address this issue continuing using CSLP while taking care of its requirement of specific complex shifts. The projection-type preconditioners have been widely investigated by researchers in numerical analysis community. We propose the projection-type deflation preconditioner to tackle the near-singular nodes, which are the cause of the decay the convergence of, this otherwise well performing, CSLP. Like multigrid, this deflation pre-conditioner, named as ADEF1, requires to solve coarse problems at different coarser levels. An optimized algorithm has been tested and proposed suggesting iterative solution of coarse problems at different levels. This finalizes as a multilevel preconditioner. The re-discretization coarsening strategy that we propose and investigate in this thesis is aimed at reducing the memory size and maintaining stencil size. The multilevel Krylov method (MLKM) has also been investigated and compared with its counterpart ADEF1. The rigorous Fourier analysis (RFA) to investigate the convergence of iterative methods forms a separate research theme, which is included in the thesis. We analyse the proposed multilevel preconditioners ADEF1 and MLKM for two-levels. Analysis shows spectral behavior of the preconditioner, which can be taken as favorable for Krylov methods. RFA points out near-singular modes and highlights their contribution in prevailing stagnation. Further the convergence can be enhanced by adapting coarse grid operator at different levels. The proposed preconditioners have been tested on academic as well as the bench mark Marmousi problem. A huge reduction in number of iterations can be noticed. A comparison in the amount of iterations and solve time, specially for three-dimensional problem, shows that the invested work has paid-off. Proposed preconditioners has been uniformly performing for one- to three-dimensions as well as for heterogeneous medium problems.Applied mathematicsElectrical Engineering, Mathematics and Computer Scienc
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