424 research outputs found

    Journal of Malaysian Branch of the Royal Asiatic Society (JMBRAS) 1987-1996: a Ten-Year Bibliometric Analysis

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    Describes and analyses key bibliometric components of articles and book reviews published in the Journal of the Malaysian Branch of the Royal Asiatic Society (JMBRAS) between 1987-199

    Acknowledgement Patterns in Research Articles: a Bibliometric Study based on Journal of Natural Rubber Research 1986-1997

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    Analyses the acknowledgements included in the research articles and short communications published in Journal of Natural Rubber Research (1986-1997) in respect of types, frequency of occurrence, individuals acknowledged, etc. Results indicate that 74% items contain acknowledgements; an average acknowledgement per item is 2.2; the most common type of acknowledgments relates to technical support. Peer interactive communication accounts for 44% of the total acknowledgements. The result of the study substantiates the earlier findings that a small number of individuals are highly acknowledged and the rest are acknowledged infrequently

    A new numerical framework for solving conservation laws: The method of space-time conservation element and solution element

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    A new numerical framework for solving conservation laws is being developed. It employs: (1) a nontraditional formulation of the conservation laws in which space and time are treated on the same footing, and (2) a nontraditional use of discrete variables such as numerical marching can be carried out by using a set of relations that represents both local and global flux conservation

    Sejarah Penerbitan Jurnal Sejarah Di Malaysia 1846-1966: Satu Tinjauan Awal

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    This article attempts to identify and compile a list of the earliest Malaysian historical journals. The study found that the earliest historical journal is Journal of the Indian Archipelago and Eastern Asia published in 1847 by James Richardson Logan, a well-known lawyer and journalist from the Straits Settlement, British Malaya. On the whole, between 1847 till 1966, as many as ten Malaysian historical journals were published by various history-related institutions, associations and individuals. Some of these publications are still actively publishing their journal while others had ceased issuing their journals

    Journal of Malaysian Branch of the Royal Asiatic Society (JMBRAS) 1987-1996: a Ten-Year Bibliometric Analysis

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    Describes and analyses key bibliometric components of articles and book reviews published in the Journal of the Malaysian Branch of the Royal Asiatic Society (JMBRAS) between 1987-199

    Acknowledgement Patterns in Research Articles: a Bibliometric Study based on Journal of Natural Rubber Research 1986-1997

    Get PDF
    Analyses the acknowledgements included in the research articles and short communications published in Journal of Natural Rubber Research (1986-1997) in respect of types, frequency of occurrence, individuals acknowledged, etc. Results indicate that 74% items contain acknowledgements; an average acknowledgement per item is 2.2; the most common type of acknowledgments relates to technical support. Peer interactive communication accounts for 44% of the total acknowledgements. The result of the study substantiates the earlier findings that a small number of individuals are highly acknowledged and the rest are acknowledged infrequently

    Injection-Limited and Space-Charge-Limited Conduction in Wide Bandgap Semiconductors with Velocity Saturation Effect

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    Carrier conduction in wide bandgap semiconductors (WBS) often exhibits velocity saturation at the high-electric field regime. How such effect influences the transition between contact-limited and space-charge-limited current in a two-terminal device remains largely unexplored thus far. Here, we develop a generalized carrier transport model that includes contact-limited field-induced carrier injection, space charge, carrier scattering and velocity saturation effect. The model reveals various transitional behaviors in the current-voltage characteristics, encompassing Fowler-Nordheim emission, trap-free Mott-Gurney (MG) SCLC and \emph{velocity-saturated SCLC}. Using GaN, 6H-SiC and 4H-SiC WBS as examples, we show that the velocity-saturated SCLC completely dominates the high-voltage (10210410^2 \sim 10^4 V) transport for typical sub-μ\mum GaN and SiC diodes, thus unravelling velocity-saturated SCLC as a central transport mechanism in WBG electronics.Comment: 8 pages, 5 figure

    Koleksi Sains Dan Teknologi Di Pusat Sumber Sekolah : Satu Tinjauan Literatur

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    Review the literature both locally and foreign regarding science and technology collection in school resource centers. Discuss in three parts namely analysis of collection in library, use or resources in library and relationship between student achievement and library collection

    A Physical Activity Intervention Demonstration Project Among Employees of Universiti Putra Malaysia

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    Physical activity is important for enhancing health and to reduce risk of various chronic diseases.Despite the well-known benefits of physical activity, lack of physical activity is now a global health hazard.Worldwide,more than 60% of adults do not engage in sufficient levels of physical activity to achieve health benefits (WHO, 2003a). In Malaysia, approximately 31% of adults do not exercise regularly (MOH, 1998).The study objective was to evaluate the effects of a six-week physical activity intervention at worksite on anthropometric measurements,percentage of body fat, physical activity levels,physical activity stages of change,walking energy expenditures and barriers to exercise.A total of 110 employees from six randomly selected faculties in Universiti Putra Malaysia were randomly allocated into control (3 faculties, n=55) and intervention groups (3 faculties, n=55). Over the six-week period, the intervention group received a multi-component intervention consisting of lecture-discussion sessions, group counselling sessions, exercise demonstrations, posters, weekly booklets and telephone reminders. The control group received weekly booklets only.Baseline and postintervention assessments were conducted by using the same questionnaires (interviewadministered format). Interviews,intervention activities and written information were conducted in Bahasa Melayu.At the end of the study, a significant positive change(p<0.05) was found for the percentage of body fat,physical activity level, physical activity stages of change,walking energy expenditure and three categories of barriers to exercise namely,lack of time, social influence and lack of willpower in the intervention group.A non-significant improvement in physical activity level,physical activity stages of change and barriers to exercise was observed for the control group.This finding may indicate that the written information (booklets) may have had some impact on promoting a physically active lifestyle or may also be due to external factors that were not controlled for.In conclusion,more than 60% of all the participants were engaged in little or no exercise at the beginning of the study. The recorded positive changes after the six weeks intervention provide evidence to support that a short-term intervention could help to increase the proportion of individuals meeting the recommendations of physical activity, adopt positive physical activity behaviour and decrease the number of barriers to exercise.Therefore, the implementation of physical activity interventions at worksites should be encourage

    Characterization, Delignification And Hydrolysis Of Malaysia Switchgrass For Sugar Extraction

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    Lignocellulose-to-ethanol conversion is a promising technology to supplement the first generation biofuels and fossil fuels. However, the recalcitrant structure of the lignocellulosic biomass is a major challenge to the efficient conversion of the biomass. To improve and increase the enzymatic digestibility of switchgrass as a lignocellulosic biomass for fermentable sugar or reducing sugar production in hydrolysis, comparison of acid and alkaline pre-treatment using sulphuric acid and sodium hydroxide of the biomass feedstock was investigated. At the condition of 1M concentration, 0.1g/mL pulp density, at standard room and temperature, the biomass was pre-treated respectively at 1, 2, 3, 4 and 5 hours of residence time. Pre-treatment was evaluated based of the weight loss of the treated samples. Both of the pre-treatment achieved the stagnant weight loss at the 4 hours residence time, which were 26% and 26.9% respectively. Then, the research was carried out further to investigate the optimum conditions for the alkaline pre-treatment. The biomass was treated at 4 hours residence time, 0.1g/mL, at standard room temperature and pressure with different concentration varying from 1 to 5M. The highest weight loss was recorded at 28.5% at the 2M NaOH pre-treatment. Pulp density had limited effect on the weight loss at constant residence time and concentration at room temperature and pressure. SEM studies on the pre-treated samples showed a great deal of structural change in the NaOH pre-treated samples and a little or no physical changes on the acid pre-treated samples
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