408 research outputs found

    MICROSTRUCTURE AND MECHANICAL PROPERTIES EVALUATIONS OF HEAT TREATED DISSIMILAR METAL JOINT WELDMENT BETWEEN API 5CT C90 AND ASTM A182 F22

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    In this research, dissimilar metal welding of API 5CT C90 and ASTM A182 F22 is used to connect between the upset riser pipe and the riser connector of a marine riser. API 5CT C90 material is the material have high carbon content that lead to its high hardness and low weldability. Proper welding parameters need to be qualified so that the welding process will give desired mechanical properties, less costly and consume less time. Therefore, post-weld heat treatment (PWHT) is needed to reduce the hardness and increase the impact energy of the weldment as the intermixture zone at fusion line between the base metal and weld metal has potential of having high hardness due to residual stress in the intermixed microstructure after high temperature welding

    In Search of Competencies of an Exceptional QS in Public Entity: Building a Theoretical Foundation.

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    It is the government role in providing infra-structure and basic amenities for the public. In Malaysia the Work Ministry is formed to oversee this role. Ensuring effectiveness and efficiency, the Public Service Department must identify competencies require for every position created in the Work Ministry and one such position is the position of Quantity surveyor. Research thus far shows that individual employees performance is not just built around technical expertise possess but also important is the behaviour. Since organization successes stand on its employees performance thus it is utmost important for organization to identify not only the right technical but also behavioural competencies for each and every individual position created. This paper discusses the need to explore competencies of exceptional Quantity surveyors and in the process suggests the means to identify those competencies. It is also argued that undertaking this heavy task cannot be accomplished without the participation of experienced public Quantity surveyors. The importance of competencies model for Quantity surveyors is also discussed in relation to human capital development which includes promotion, training, and recruitment of young Quantity surveyors to serve the public service.Competencies, Exceptional Quantity surveyor, Quantity Surveying Profession, Public Sector, Delphi Study

    Customer behavioral intention: Influence of service delivery failures and perceived values in Malay restaurants / Zulhan Othman, Salleh Mohd Radzi and Mohd Hafiz Mohd Hanafiah

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    Undeniable that to be successful, restaurant industry must have the ability to deliver satisfying experiences to customers. Most successful restaurants compete on the basis of their ability to delivery superior and unexceptional service. Nevertheless, even in the luxurious restaurant with the best customer-oriented strategic plans, immaculate service delivery cannot be assured. Service delivery failures, in fact, can make restaurants out of business by neglecting the cause of failure. Apart from that, it is contended that customers who had a bad experience will still revisit and remain loyal to the restaurants that have positive perceived values. Thus, this study empirically investigates the influence of service delivery failures, perceived values and customer behavioral intention in Malay restaurants. It is structured according to a quantitative investigation among restaurant customers who had visited and experienced service delivery failures when dining at pre-identified Malay restaurants in Klang Valley

    MICROSTRUCTURE AND MECHANICAL PROPERTIES EVALUATIONS OF HEAT TREATED DISSIMILAR METAL JOINT WELDMENT BETWEEN API 5CT C90 AND ASTM A182 F22

    Get PDF
    In this research, dissimilar metal welding of API 5CT C90 and ASTM A182 F22 is used to connect between the upset riser pipe and the riser connector of a marine riser. API 5CT C90 material is the material have high carbon content that lead to its high hardness and low weldability. Proper welding parameters need to be qualified so that the welding process will give desired mechanical properties, less costly and consume less time. Therefore, post-weld heat treatment (PWHT) is needed to reduce the hardness and increase the impact energy of the weldment as the intermixture zone at fusion line between the base metal and weld metal has potential of having high hardness due to residual stress in the intermixed microstructure after high temperature welding

    Implementasi Majallah Al-Aḥkām Al-‘Adliyyah dalam Perundangan di Negeri Johor: Satu Kajian Preliminari

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    This study aimed to review the influence of Majallah al-Aḥkām al-‘Adliyyah of Ottoman Civil Code towards the Muslim society in state of Johor.The Majallah was restructured by Ottoman Empire in 1869 references to Hanafi’s School. The Majallah was a modern code divided into chapters and comprised generalizes section such as Contract Law, Tort and Evidence Act. Historically, Sultan Abu Bakar was visited to Istanbul and met His Majesty of Caliph Sultan Abdul Hamid II in year 1893 therefore became the first rule of Malay archipalego. The adoption of Majallah al-Aḥkām al-‘Adliyyah in Arabic language as Islamic Civil legislative in year 1893 by Johore Government, also translated to bahasa Melayu in 1913 later during the reigning of Sultan Ibrahim known as Majalah Ahkam Johor. The enforcement according to section 49 and 57 of Johor State Constitution 1895. The methodology using qualitative design based on historical study approach and document analysis. The objective of this paper is to examine the relationship between the Johor Government and the Ottoman Empire through the book Majallah al-Aḥkām al-'Adliyyah as well as explaining the diplomatic relations of the two governments. The following study will examine the implementation of Majalah Ahkam Johor in the administration of Islamic law in the state of Johor. This paper identified the implementation of Majalah Ahkam Johor in the court of state of Johore was interrupted after the British appointed a General Advisor in 1914. Kajian ini bertujuan mengkaji pengaruh Kerajaan Uthmaniyyah melalui kod Undang-undang Sivil iaitu Majallah al-Aḥkām al-‘Adliyyah terhadap masyarakat Islam di Johor. Majallah al-Aḥkām al-‘Adliyyah digubal oleh Kerajaan Uthmaniyyah pada tahun 1869 dengan menggunakan kaedah fiqh Mazhab Hanafi. Kitab tersebut merupakan satu kod undang-undang moden yang dibahagikan mengikut bab serta fasal yang mengandungi peruntukan umum seperti Undang-undang Kontrak, Tort dan Undang-undang Keterangan. Menurut sejarah, Sultan Abu Bakar mengadakan kunjungan rasmi terhadap Sultan Abdul Hamid II di Istanbul pada tahun 1893 dan merupakan pemerintah pertama dari rantau Nusantara yang berbuat demikian. Kerajaan Johor mengadaptasi kitab Majallah al-Aḥkām al-‘Adliyyah sebagai perundangan Sivil Islam pada tahun 1893, dan kemudiannya diterjemahkan ke dalam bahasa Melayu pada tahun 1913 ketika pemerintahan Sultan Ibrahim yang dikenali sebagai Majalah Ahkam Johor. Penguatkuasaan penggunaan kitab itu selaras dengan peruntukan seksyen 49 dan 57 Undang-undang Tubuh Kerajaan Johor 1895. Metodologi kajian ini berbentuk kualitatif yang menggunakan pendekatan kajian sejarah dan analisis dokumen. Objektif penulisan ini ialah meneliti hubungan antara Kerajaan Johor dengan Kerajaan Uthmaniyyah melalui kitab Majallah al-Aḥkām al-‘Adliyyah di samping menghuraikan hubungan diplomatik kedua-dua kerajaan. Seterusnya makalah ini akan menilai perlaksanaan Majalah Ahkam Johor dalam pentadbiran undang-undang Islam di negeri Johor. Hasil penulisan mendapati implementasi penggunaan kitab Majalah Ahkam Johor dalam mahkamah negeri Johor terganggu selepas British menempatkan seorang Penasihat Am pada tahun 1914

    Novel superhydrophobic and superoleophilic sugarcane green ceramic hollow fibre membrane as hybrid oil sorbent-separator of real oil and water mixture

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    The frequent oil spill accidents in nowadays has aroused great attention all over the world. Superhydrophobic and superoleophilic grafted on various substrates have attracted much attention to treat oil and water mixture because of their unique performance that can effectively separate oil and water mixture. At the same time, ceramic membrane also shows potential substrates to be used in treating oil and water mixture. However, conventional ceramic membrane that made from alumina show drawbacks in term of its high cost production. Herein, we report a new ceramic membrane that derived from agricultural-sugarcane bagasse waste and modified into superhydrophobic and superoleophilic to act as hybrid oil sorbent and separator. In this study, we successfully treat three types of real oil and water mixture from palm oil mill effluent (POME), restaurant and car wash with oil rejection and flux up to 99% and 134 L/m2h, respectively. In summary, this work demonstrates a facile, economic and effective method to fabricate superhydrophobic and superoleophilic substrates for oil and water separation

    Preparation and characterisation of inexpensive porous kaolin hollow fibre as ceramic membrane supports for gas separation application

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    Low-cost, porous ceramic kaolin-based hollow fibre membrane support (HFMS) for gas separation application was developed via phase inversion technique. The ceramic suspensions with various ratios of kaolin to polyethersulfone (PESf) binder (5:1 to 9:1) were extruded and then sintered at 1200 to 1500 °C. The HFMSs were characterised by several analyses to investigate the effects of kaolin/PESf ratio and sintering temperature on the sample properties. The results showed that the kaolin/PES ratio and sintering temperature affected the considerable structure and physical properties of the kaolin membrane. It is observed that with increasing sintering temperature, the porosity and gas permeation of the HFMS decreased, while the bending strength and density of the HFMS increased. As a result, a porous HFMS with sufficient mechanical strength and high gas permeation characteristics is achievable if the appropriate kaolin/PESf ratio and sintering temperature are chosen

    Evaluating the sintering temperature control towards the adsorptivity of ammonia onto the natural zeolite based hollow fibre ceramic membrane

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    The disproportionate quantity of ammonia presence in water has led to serious drinkable water scarcity worldwide. The abundant source of mineral and superior cations selectivity has made natural zeolite as a good adsorbent for the ammonia removal. This work aims to fabricate natural zeolite based hollow fibre ceramic membrane (HFCM) via extrusion-based phase inversion and sintering techniques for the ammonia removal in wastewater. The physical properties of the fabricated HFCM were investigated through surface morphologies and pure water permeation. The performance of the HFCM for ammonia removal was studied using synthetic wastewater with HFCM prepared at different sintering temperatures. Of all studied sintering temperatures, it was found that 1050 °C was the best fabrication conditions. The membrane also revealed acceptable morphologies (roughness) and water permeation flux of 249.57 L/m 2 .h to which both contributed to the performance of the HFCM. The ammonia removal using the fabricated HFCM gave an outstanding performance with nearly 90% rejection, which probably is due to the synergistic effect of the two processes in the HFCM system, i.e. adsorption and separation. It was found that natural zeolite based HFCM has a great potential to be developed as a single – step ammonia removal in wastewater treatment

    Malaysian tourists’ motivation towards outbound tourism / Mohd Hafiz Mohd Hanafiah, Zulhan Othman...[et al]

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    The Malaysian outbound tourism market is recognized as one of emerging consumer demand based on the amount of expenditure reported. Despite this, research relating to the motivations for Malaysian outbound tourism, especially the push and pull factors are scarce. Therefore, it is necessary to understand why people travel and choose a specific international destination, and in line with this, this paper conceptually examines the influence of culture, demographic variables and tourists’ motivations in destination selection

    In Search of Competencies of an Exceptional QS in Public Entity: Building a Theoretical Foundation.

    Get PDF
    It is the government role in providing infra-structure and basic amenities for the public. In Malaysia the Work Ministry is formed to oversee this role. Ensuring effectiveness and efficiency, the Public Service Department must identify competencies require for every position created in the Work Ministry and one such position is the position of Quantity surveyor. Research thus far shows that individual employees performance is not just built around technical expertise possess but also important is the behaviour. Since organization successes stand on its employees performance thus it is utmost important for organization to identify not only the right technical but also behavioural competencies for each and every individual position created. This paper discusses the need to explore competencies of exceptional Quantity surveyors and in the process suggests the means to identify those competencies. It is also argued that undertaking this heavy task cannot be accomplished without the participation of experienced public Quantity surveyors. The importance of competencies model for Quantity surveyors is also discussed in relation to human capital development which includes promotion, training, and recruitment of young Quantity surveyors to serve the public service
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