991 research outputs found

    Design Study of a Heavy Duty Load Cell Using Finite Element Analysis: A practical Introduction to Mechatronic Design Process

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    Mechatronics design process is a series of analytical brain storming operations from sepcification to implementation. The mechtronic products are widly available in the market for various use and applications. This is expected to develop futher in the future with great competitiveness. In order to succeed in the market, mechatronic products need to satisfy the market expectations with regard to quality, fitness for purpose, customer\u27s appeal and cost efficiency. Therefore, the design analysis techniques play a significat part in the market success of these products. Finite Element Analysis is probably the most commonly used numerical technique for mechatronic product design. This technique has been developed over a number of years and is now available in a wide variety of packages, mostly for mainframe and workstation plaiforms but also for personal computer systems. Over the past few years, the range of users has broadened dramatically with a rapid need for training and education of this technique. This paper reviews the design philosophy and modelling strategy of a mechtronic product using finite elemnent tequniques. This takes into acount the design study of a 140 tonne load cell for measuring a load mechanisim in metal working applications

    Common Sense Approach To Third Level Education For The Modern Market

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    A healthy industry is of crucial importance to the well being of a nation. Recently, new technology has caused tangible changes in the modern market by creating continuous needs and demands for skills and technologies in various fields. The educational system is a major component in the provision of the skilful workforce in a society. However, the recent unprecedented rate of industrial expansion has resulted in new industries experiencing recruitment difficulties. It is felt that these issues can be addressed by establishing reliable collaboration between industry and third level educational systems to fulfill the needs using less resources

    Malay Nationalism Reflected From Newspapers 1900-1920's

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    The aim of this thesis is to estimate the importance of Modernizers in creating, developing, spreading and contributing towards active Malay nationalism until it eventually succeeded in gaining independence. I wish to determine if it is true that the reformist movement carried on by Modernizers has no connection at all with Malay nationalism, that is to say as a religious movement or perhaps nationalism still in the stage of religion. Modernizers were sometimes categorized like that because they seemed to talk too much about religion and because most of them received religious education and tried to bring modernization based on Islamic teaching

    Attenuation of Antagonist-induced Impairment of Dopamine Receptors by L-prolyl - L-leucyl-glycinamide

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    It has been shown by others that the prenatal treatment of rats with haloperidol, a dopamine D2 receptor antagonist, leads to a permanent reduction in the number of striatal dopamine D2 receptors in adulthood. Conversely, postnatal treatment of lactating dams with haloperidol from birth for 21 days, leads to an increase in the number of striatal dopamine D2 receptors in the litters, when assessed as adults. The present study was undertaken in order to determine whether chronic, long-term postnatal challenge of rat pups per se, with specific dopamine D1 and D2 receptor antagonists, would modify the ontogeny of the respective receptor types. Since the neuropeptide L-prolyl-L-leucyl-glycinamide (PLG) attenuates the effect of haloperidol on dopamine D2 receptors in adult rats, it was of interest to determine whether PLG would modulate antagonist-induced alterations in the ontogeny of striatal dopamine D1 and D2 receptors. Half of the rats were treated daily for 32 days from birth with SCH-23390 (0.30 mg/kg/d i.p.), a selective dopamine D1 antagonist; or spiroperidol (1.0 mg/kg/d i.p.), a selective dopamine D2 antagonist; or both SCH-23390 and spiroperidol; or saline. The other half of the litters were treated with PLG (1.0 mg/kg/d, i.p.), in combination with the other treatments. Animals were decapitated at 5, 8, and 12 weeks from birth for neurochemical analysis of the striatum. Chronic SCH-23390 treatment produced a 70-80% decrease in the binding of (\sp3H) SCH-23390 (300 pM) to striatal homogenates. The alteration at 5 weeks was associated with a 78% decrease in the Bmax for (\sp3H) SCH-23390 binding, and no change in the K\sb{\rm D}. Similarly, at 5, 8, and 12 weeks, chronic spiroperidol treatment reduced the binding of (\sp3H) spiroperidol (300pM) to striatal homogenates by 70-80%. The alteration at 5 weeks was associated with a 74% decrease in the Bmax for (\sp3H) spiroperidol binding, and no change in K\sb{\rm D}. Furthermore, PLG attenuated these respective changes in dopamine D1 and D2 binding, when assessed at 5 and 8 weeks. These findings demonstrate that the postnatal period is a sensitive and critical time in the development of striatal dopamine D1 and D2 receptors and that PLG is able to attenuate the alterations in ontogeny that are produced by dopamine D1 and D2 receptor antagonists

    Media representation of environmental issues in Malaysia : Newspapers and environmental non-government organisation newsletters

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    This research aims to discover the types of environment issues represented in Malaysian newspapers and environmental non-governmental organisations (ENGOs) newsletters, and to examine the factors in the selection of environmental issues by both social actors. Two methods were employed for the purpose of this study. First, a quantitative content analysis were conducted on 2,050 environmental articles on The Star and Utusan Malaysia’s newspapers together with World Wide Fund for Nature’s (WWF) and Malaysia Nature Society’s (MNS) newsletters from the period of 2012 to 2014. Second, a total of 24 interviewees encompassing of 13 interviewees from The Star and Utusan Malaysia, and 11 interviewees from WWF and MNS were chosen for the in-depth interview sessions. The results of this study discovered that the ways of media and ENGOs representing environmental information in newspapers and newsletters are slightly different. The ENGOs have given more attention to environmental effort topics like sustainable living while the media are focused more environmental problems like floods. However, this study also found that the Malaysian media and the ENGOs shared certain similar criteria for selecting environmental issues for their newsletters especially the news values of proximity, timeliness and impact

    The determinants of internet financial disclosure: The perspective of Malaysian listed companies

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    This paper investigates whether Internet Financial Disclosure (IFD) can be explained by the elements of the company’s characteristics and dominant personalities in board committees.Ten variables have been tested using data collected from 194 Malaysian listed companies’ websites, namely, internationality, leverage, foreign shareholders, information technology (IT) experts, firm’s age, number of shareholders, listing status, dominant personalities in the audit committee, chairman of audit and nomination committees, and dominant personalities in the audit and nomination committees.It is found that IT experts, firm’s age, number of shareholders and listing status are significantly affected by the level of IFD. However dominant personalities in the audit and nomination committees are negatively related to the level of IFD in Malaysia.The study provides some evidence to support the signalling theory and the cost and benefit hypothesis in relation to Internet disclosure

    Exploring the opportunities and perceived success of internationalization strategies in Malaysian SME’s

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    There is a complete transforming process all around the global economy. Technological displacement is displacing all the business activities into information oriented or information based activities. Internationalization has the great contribution in the fundamental changes which took place all over the world. In fact due to internationalization a revolution has been introduce globally. Due to the web there is availability of extended opportunities for Malaysian customer and small & medium enterprises (SME‟s). There is a need of an orderly frame work, due to limited research on the role of internet in international marketing. In order to have the better understanding to the role of internet in international marketing strategy, it is needed to examine the purpose for which SME‟s use the internet in the international marketing context(Shanker & Meyer, 2009). This paper will be providing a significant contribution in the development of internationalization process among Malaysian SME's. This paper will also help Malaysian SME's to improve their internationalization strategies in contrast with the electronic commerce

    Flood Mapping And Flood Damage Estimation Using GIS

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    Flood mapping has been used widely in many countries nowadays as a method to encounter this natural hazard phenomenon. In the past few years, studies about the flood analysis and modeling used to take years. But now, with the facilitation of Geographical Information System (GIS) automated process, the studies are faster and even accurate in modeling the flood inundation area. The used of GIS is essential as a planning tool for floods, educating the populations at risk and managing floods as they actually rise. Features in the GIS itself such as the 3-D Visualization and detailed hydrological characteristic help a lot in defining areas which is vulnerable to flood. Generally, flood mapping can identify the effects of flooding and those effects are represented in hazard and risk mapping. The main advantage of using GIS for flood management is that it not only generates a visualization of flooding but also creates potential to further analyze this product to estimate probable damage due to flood. This paper is to demonstrateth e use of GIS in constructing the flood map at studies area. The map then are derive into Digital Terrain Model (DTM) to make the identification in flood vulnerable areas easier which provide high detailed representation of the topographical variations in the Earth's surface

    Work flow improvement at Kenny Leather (M) Sdn. Bhd.

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    Kenny Leather who was located at Merlimau Industrial Estate, Melaka driving force in the manufactures of leather. The company supply its product internationally and the product are well known globally due to their product’s quality and their commitment to give their best to the customer. Former world number one player of golf, Tiger Wood is among the user of hand glove that were made by this company. Kenny Leather has 200 workers and all of their workers are Malaysian. The managing director is Mr. Tadashi Fujisawa and main share partner is Kenny Co. Ltd. The company motto is ‘one for all and all for one’. Kenny Leather (M) Sdn Bhd is the factory processed all the material consists of leather. The nature of business is manufacturing leather gloves (for gloves), betting gloves, dress leather, cut leather and dyed sheep/goat skin leather. This factory is one of the biggest suppliers for leather material. In fact the former number one golfer in the world which is, Mr. Eldrick Tont Woods, known as Tiger Woods is using leather products made by the Kenny Leather. One company known as FootJoy which is the main company that sponsor Tiger Wood accessories for golfing is almost 80% was supplied by Kenny Leather

    Modeling and analyzing parasitic parameters in high frequency converters

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    This research focuses on electromagnetic interference (EMI) / electromagnetic compatibility (EMC) design and analysis in power electronics systems. To limit the EMI under the standards, different methods and strategies are investigated. Parasitic parameters of high frequency (HF) transformer are analyzed using a novel analytical method, finite element method (FEM), and experimental measurements for different structures and windings arrangements. Also, the magnetic field, electric field, electric displacement, and electric potential distribution are simulated and analyzed. Moreover, a high voltage system is considered and analyzed to improve the EMC. The EMI propagation paths are analyzed. The EMI noise level of the system is obtained and compared to the IEC61800-3 standard. To improve the EMC, the parasitic parameters of the transformer, as the main path of EMI circulation, are analyzed and optimized to block the propagation. Furthermore, the geometry structure of the HF transformer is optimized to lower the parasitics in the system. Three pareto-optimal techniques are investigated for the optimization. The models and results are verified by 3D-FEM and experimental results for several given scenarios. Furthermore, the EMC modeling and conducted EMI analysis are developed for a system including an AC-DC-DC power supply (rectifier and dual active bridge (DAB) converter). Moreover, the common mode (CM) EMI noise propagation through the system is discussed and the noise sources and effect of components on the noise are analyzed. Additionally, the CM impedance of different parts of the system and the noise levels are discussed. Finally, EMI attenuation techniques were applied to the system --Abstract, page iv
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