693 research outputs found
From research & innovation ideas into product patent / Muhammad Hussain Ismail
No full textContent Outline:
1. Motivation
2. Technology readiness level
3. Innovation of dental implant
4. What's next?
5. Final remark
Simulation of surface crack interaction of marine solid shaft / Noor Elya Nashiewa Shabarudin and Muhammad Hussain Ismail
No full textThe marine industry relies on the transmission of power through a propeller shaft, which is typically a solid cylinder. However, when cracks appear in the shaft's hub, it is crucial to take preventative measures to avoid failure. Solid cylinders are susceptible to cracking and fracturing under various mechanical stresses, leading to single or multiple cracks. The interaction between these fractures can significantly impact the structure's collapse, and thus, this study aims to address the issues that emerge from the interaction of multiple cracks under specific loading conditions. To achieve this goal, research on various crack configurations on the cylinder's surface using finite element software, AnsysTM has been conducted to calculate the stress intensity factor (SIF) under different types of loading. The cylinder's dimensions were set to 200 mm in length and 50 mm in diameter, while the crack depth ratio ranged from 0.1 to 0.4, with an increment of 0.1. The crack aspect ratio was set to 0.6. The results were normalized to generalize the interaction factor and the relationship between two cracks and a single crack. It was found that the interaction factor is dependent on the separation distance between the cracks and the crack depth ratio. These findings suggest that preventative measures should be taken to mitigate the risks of crack formation and interaction, such as regular inspections and maintenance
Characteristic Of The YTTRIA Stabilized Zirconia (YSZ) for Ceramic Injection Moulding by Using Palm Stearin as a Primary Binder / Mahfuzah Zainudin and Muhammad Hussain Ismail
No full textCeramic injection moulding (CIM) is a near net shape process to produce smaller and intricate parts at a competitive cost. However, fine particle size (nano scale) used for such injection moulding process generally leads to agglomeration, higher binder content and critical dimensional shrinkage, which result in defects on the sintered components. This study extensively investigates the characteristics of YSZ for CIM process. YSZ parts were moulded by CIM process that utilized a multi-component binder system using palm stearin (PS) and polyethylene (PE) in 60:40 (vol %) ratio. The powders were characterized using particle size analyzer, pycnometer density and scanning electron microscopic (SEM). The binders were characterized by the pycnometer density, differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). Powders loading were chosen by the critical powder volume percentage (CPVP) through an oil absorption test. YSZ powder was mixed with the binders at different powder loadings ranging from 58 to 60 vol% based on CPVP. The parts were injected moulded, thermal debound, pre-sintered and sintered. The microstructure, green strength and hardness of the sintered part at different powder loadings were investigated. A large porous region was clearly observed at 58 vol% compared to 60 vol%. All samples were sintered at 1350 ᴼC, with the highest green strength and hardness was 13MPa and 357.42 HV respectively were given by the sintered part at powder loading of 60 vol%
Feedstock flow characterization and processing of porous niti by metal injection moulding (mim)
No full textPorous NiTi alloy with a nearly three-dimensionally interconnected pore structure has been
successfully fabricated by a transient liquid phase sintering following the metal injection
moulding (MIM) process, using a mixture of Ni and Ti elemental powders. The elemental Ni
and Ti powders mixture was mixed with a binder system, comprised mainly polyethyleneglycol
(PEG) in an alternative technique using a speed mixer, principally incorporating a
dual asymmetric centrifuge (DAC). The powder-binder mixture was then characterized
using a capillary rheometer at various temperatures and shear rates. It was found that the
feedstock exhibited pseudo-plastic behaviour, which is favourable for the MIM process. A
temperature range of 120oC - 130oC was considered as the optimum operating condition
for the injection moulding processing. The parts were moulded into cylindrical shapes,
leached in warm water (60oC for 10 hours), thermally debound in argon and subsequently
sintered in a vacuum furnace at four different temperatures ranging from 950oC to 1250oC.
All samples underwent expansion in both diameter and height after water leaching and
sintering. The XRD results showed that increasing the sintering temperature resulted in a
major fraction of the B2 NiTi phase due to phase homogenization and subsequently
decreased the amount of secondary phases such as NiTi2 and Ni3Ti. Besides that, the
formation of the transient liquid phase during sintering enabled major fraction of pores to be
developed with porosity and average size of 39 - 45% and 100 - 120 ?m, respectively. The
porous parts produced have a great potential to be used as an implant in biomedical
applications
Linguistic and extra-linguistic problems in the translation of the Holy Qur'an
No full textThis thesis is the first to study the English
translations of the : Holy Qur'an, and is mainly concerned
with the translators' approach in handling
the linguistic (lexical & syntactic) , and extra-linguistic
(variant readings & cultural ) problems of the text.
The works that are the subject of the study
are those of six English translators (Sale, Rodwell,
Palmer, Pickthall, Bell, and Arberry), as well as one
of a non-English Muslim translator from Pakistan (Maulana
Muhammad Ali).
The translators' renderings of the problematic
instances are compared with) the expositions of the
exegetes (whom the translators have been familiar with),
in order to investigate the commentators' influence
on the translators. The similarities between the
translators' renderings are also checked to find out
the degree of dependence between the translators.
The translators are found to be heavily reliant on
the exegetes. The degree of dependence between the
translators is found to be considerable. Some problems
have been resolved by means of- the context (i.e. the
text as a whole); whereas others are left unresolved.
The translations that have been studied are closer to
commentaries than the text. The main conclusion is
that the Holy Qur’an is untranslatable in the strict sense
الشيخ محمد إسماعيل عودوى الشكارفورى حياته وآثاره العلمية و مكانته العلمية والادبية عند علماء عصره
No full textThis Article focusses on those endevours which sheik Muhammad Ismail put in the arena of literature and pursuit of knowledge. His writings have been mirrored in research. There in which are his life achievement and invalueable treasure. These writings hold a peculiar esteem among scholars and are evident proof of writer’s ardent love for knowledge. This article provides a glimpse of his contemperory eminent scholars of their age and their appreciating remarks about the richnes of his erudition and wrdness of study
Effect of heat treatment on phase transformation of niti shape memory alloy produced by metal injection moulding / Ros Atikah Abdul Kadir, NurAtira Sharir and Muhammad Hussain Ismail
No full textThe NiTi alloy is widely known for its unique properties which are pseudoelastic and shape memory effect. These two unique properties are suitable for biomedical applications such as an implant, biomedical suture etc. Various methods are available to produce NiTi such as Metal Injection Molding (MIM), Vacuum Arc Melting (VAM), Additive Manufacturing (AM), etc. The most common method is MIM, where the specimen undergoes the process of mixing, injection moulding, debinding and sintering. Commonly after the sintering process, the sample is inhomogeneous due to the formation of secondary phases and impurity content. These impurities content can be reduced by applying heat treatment which improves the microstructure of NiTi. The objective of the study is to investigate the effect of heat treatment on the microstructure and phase transformation of NiTi. In this study, samples were fabricated with each 50.0at% and 50.8at% of NiTi composition by using MIM. An annealing heat treatment of 430˚C was applied to the heattreated samples for increasing the yield strength of NiTi. All heat-treated samples were subjected to Differential Scanning Calorimetry (DSC) test for analysing the phase transformation; X-Ray Diffraction (XRD) test for identifying the existence of any secondary phases; and Scanning Electron Microscopy (SEM) test for observing the change in the microstructure. The results indicated that upon heating through the annealing process, the secondary phase of martensite, which is known as NiTi (B19’) diffused and formed the austenite phase of NiTi (B2). Results from the DSC and SEM analyses showed that the formation of B2 is dominant after the heat treatment proces
Application of lamb waves (ultrasonic waves) in wear detection on aluminium plate / Nik Rosli Abdullah, Shahrul Azam Abdullah and Muhammad Hussain Ismail
No full textWear is a cause of failure in many engineering components and normally related to the surface roughness of the components surface. The wear rate is high when two rough surfaces are in relative motion compared to the motion involved by two smooth surfaces. Wear can normally be assessed by measuring the depth of wear scar or weighing the component loss. However this method cannot be used when the surface locate inside the machine or if occur on inner part of machine. This work focus on ultrasonic wave's application in order to detect surface roughness which is can relate to the wear phenomenon. Non-destructive Testing is defined as an inspection tool that used to detect internal defect, surface and discontinuities or flaws in materials without destroying their usefulness before it is used in a new design. In this work, there are two method used to detect a surface roughness at the different level of roughness on four specimens made by aluminium alloy. First measurement performs by using stylus profilometer then followed by ultrasonic waves propagation. Comparison between two them was made to draw the relationship of both methods. It is shows strong evidence that ultrasonic waves have a great potential in roughness/wear detection. The time travel from one point to another was recorded for all specimens then calculation of waves velocities show reduction when surface roughness increases. Here we have strong evidence to prove the rough surface absorb energy from waves after propagates through it
اُردو رسم الخط اور خطاطی
No full textTraditional Poetry based on "Hamd, Munajat, Naat, Manqabat, Ghazal, Qaseedah, Marsiyah, Salam, Shehr-e-Ashob, Wasokht, Rekhti, Perody etc" in structure of Masnawi, Musallas, Murabba, Mukhammas, Musaddas, Qitaa, Rubai, Ghazal, Tarkeeb band, Tarjie band, Perody etc. Modern Poetry contains Blank Verse, Sonnet, Free Verse as well as Prose Verse. In Urdu literature, Nazir Akbarabadi is first modern poet. Altaf Hussain Haali, Muhammad Hussain Azad, Ismail Merathi, Shibli Nomani, Akbar Ilahabadi, Muhammad Ali Johar, Zafar Ali Khan are the modern poets of Anjuman-e-Punjab. Ismail Meerathi started Free Verse in Urdu. Then Meera ji, N.M Rashid, Majeed Amjad, Qayyum Nazar, Sajjad Baqir Rizwi, Arif Abdul Mateen, Shuhrat Bukhari, Dr.Saadat Saeed and Anis Nagi are the main poets of modern poetry. They followed Sartre, Witiginstan, T.S Eliot etc.Their topics are Life, Death, Mortalism, Immortalism, Loneliness of a man, difficulties and problems, Anarki, feeling o f age, Linguistical trans for mation etc
Phase transformation temperatures (PPTs) and microstructure of moulded NiTi alloy using a water soluble binder system
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