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Business, Engineering and Industrial Applications (ISBEIA), 2012 IEEE Symposium on

Date 23-26 Sept. 2012

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Displaying Results 1 - 25 of 183
  • [Front cover]

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  • [Copyright notice]

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  • Table of content

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  • Welcome message

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  • Organising committee

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  • Reviewers

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  • Technical program

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  • Author index

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  • A characterization of watermelon leaf diseases using Fuzzy Logic

    Page(s): 1 - 6
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (385 KB) |  | HTML iconHTML  

    This paper presents a characterization of watermelon leaf diseases through the RGB color. The aim of this study is to perform identification of selected critical watermelon leaf diseases in Malaysia namely the Downy Mildew and Anthracnose diseases. Several samples of infected leaves images were put under digital RGB color extraction where the images were captured under standardized and controlled environment. This study involves 200 samples of infected leaves of which the classification of the diseases was carried out using Fuzzy Logic technique. Fuzzy Logic was used to handle the uncertainty and vagueness as it provides a means of translating qualitative and imprecise information into quantitative (linguistic) terms. The results have shown that the percentage of accuracy for both types of disease were more than 67%. View full abstract»

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  • Determinants of employment mobility trend among Malaysian young talents

    Page(s): 102 - 107
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (236 KB) |  | HTML iconHTML  

    To achieve developed country status by the year 2020, Malaysia needs high skilled workers contribution. However, Malaysian faced problems where currently there are 700,000 Malaysians work and living abroad, and many of them are skilled professionals. The diversity and size of the community of Malaysian abroad represents valuable assets to be tapped to accelerate Malaysian towards a high-income economy. The current total number of high skilled jobs actually are insufficient achieve the vision. The government aims to achieve a target of 33% of the workforce being employed in the high skilled jobs bracket by 2015, and up to 50% by 2020 through greater involvement of the private sectors. Statistics shows that Malaysia has lack of professional workers due to some of them deciding to work abroad in a professional and trained field. The increasing globalisation has escalated the mobility of talent to the industrialised countries lured by better salaries, working condition and quality of life. Thus, Malaysian government has introduced Talent Corporation (TC) on 1st January 2011 to strengthen Malaysia's talent pool as required for economic transformation. This paper intends to identify determinant factors of employment mobility trends among Malaysian young talents. A random sample of 300 respondents from bachelor degree programs of public and private universities in Malaysia were asked. The findings of this research will help TC to address the issue of employment mobility trends among Malaysian young talents. View full abstract»

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  • The development and validation for the constructs of perceived consumer effectiveness, environmental concern and ecologically conscious consumer behavior using Confirmatory factor analysis

    Page(s): 108 - 112
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    The objective of this paper is to develop the constructs for perceived consumer effectiveness; environmental concern and ecologically conscious behavior in assessing their validity and reliability. A survey has been developed and administered with a total sample of 319 achieved across the country. Through extensive review of pertinent literature, five dimensions have been identified that form the component factors of the study. A Confirmatory factor analysis was performed using AMOS 18.0 to check on the construct and identify the model fitness. View full abstract»

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  • Translation of accounting processes in organisational transformation

    Page(s): 113 - 117
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (228 KB) |  | HTML iconHTML  

    This paper provides a conceptual discussion on the role accounting practices and procedures play in an organisational transformation on its impact on changes in accounting processes and practices. The discussion deliberates on the institutional theories of both New Institutional Sociology (NIS) and neo Old Institutional Economics (neo OIE) in discussing the reasons for an organisational to transform coupled with the discussion on the internal adjustments that the actors within the organisation has to undergo. These changes inevitably involve changes in accounting processes hence the premise that accounting drives organisational change in a way that the very incompleteness of implementing and enacting its systems leads to accounting knowledge being interpreted differently across organisational spaces and times. The Actor-network theory (ANT) is discussed in the transformation context through analysing the accounting dynamics involved in the transformation process. It serves as a frame to interpret and guide the processes through which networks within the accounting functions of an organisation are examined towards organisational strategies of supply chain network of information, mobilisation of actors for cohesiveness and congruence of organisational objectives considered within the juxtaposition of social, political & cultural environment for implementation of new accounting practices and procedures. View full abstract»

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  • Enhancing e-book selection practices in Malaysian academic libraries

    Page(s): 118 - 123
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    This paper presents a perception study on the used of patron driven acquisition (PDA) in e-book selection at academic libraries in the Klang Valley, Malaysia. E-book is an increasingly common medium offered within these libraries. The purchase of e-book utilizing a finite budget has significant impact on library's return investment. The paper focuses on e-book selection practices regarding collection features and the user friendliness. In this study, questionnaires were distributed to selected professional librarians who were responsible either with the e-book acquisition or handling e-book at the reference desk in public and private academic libraries. The finding reveals respondents' positive perception on collection features, user friendliness and return on investment are moderately high. The result also indicates moderate relationships that exist between ebook selection practices (collection features and user friendliness) and library's return on investment. The insights offered by this study may be of value to librarians and library management. View full abstract»

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  • Gelatin-coated zeolite y for controlled release of anticancer drug (zerumbone)

    Page(s): 124 - 129
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    An oral slow release drug delivery system of zerumbone-zeolite Y-gelatin composites were prepared by two coating techniques namely dipping already shaped drug loaded zeolite y beads in gelatin and by blending gelatin with drug loaded zeolite Y powder followed by pelletizing by drop wise addition into sunflower oil. Zeolite Y acted as the support material in the nanocomposite preparation. In both coating techniques, pellets obtained were spherical in shape. Zerumbone (ZER) a natural anticancer drug was extracted from local Zingiber Zerumbet and loaded into zeolite Y via wet impregnation method. The composites were tested via UV-VIS for in- vitro drug delivery study and were characterized using TLC, SEM and XRD methods. From the data obtained, dip coated composite samples showed best sustained release of zerumbone for 24 h compared to blended zerumbone-zeolite Y-gelatin pellet. The inert zeolite Y acted as a carrier and support for drug, and the pores encapsulated, protected and controlled the released of the drug. View full abstract»

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  • First principles calculation on elastic, electronic and optical properties of new cubic (Pm3m) pb-free perovskite oxide of SnZrO3

    Page(s): 13 - 17
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    The geometry optimization, elastic constant, electronic band structure, density of state (DOS) and optical properties of perovskite SnZrO3 (SZ) are investigated from first principles calculation using the Density Functional Theory (DFT) within Local Density Approximation (LDA). All the calculations are performed using the Cambridge Serial Total Energy Package (CASTEP) computer code. The independent elastic constants (C11, C12, and C44), bulk modulus, B are obtained and analyzed. From the calculation along the higher symmetry direction in the Brillouin zone, direct band gap of SZ is 3.09 eV at X point and DOS shows the strong hybridization between cation Pb 5p and O 2p compare to hybridization of cation Zr 4d and O 2p. To understand the optical properties of SnZrO3, the complex dielectric constant for radiation up to 30 eV was investigated. Results show that anion O 2p, cation Sn 5p and Zr 4d states play an important role in optical transition and it is respectively correspond to the top of valence states and bottom of conduction band. The results were compared and showed in good agreement with other calculated SnTiO3. View full abstract»

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  • Antimicrobial activity of Malaysian honeys on selected bacterial in gut flora

    Page(s): 130 - 133
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    Honey has been shown to have wound healing and antimicrobial properties but the potency of its properties depend largely on the source of nectar and geographical location. This study was carried out to determine the antimicrobial activity of four-selected Malaysian honey (gelam, tualang, nenas and acacia) against several species gastroenteritis bacteria. The antibacterial activity of honey was tested against Shigella flexneri, Shigella sonnei, Pseudomonas aeruginosa and Staphlycoccus aureus and was determined using broth dilution method. Honey was diluted in nutrient broth (50%, 25%, 12.5%, 6.3%, 3.1%, 1.6%, 0.8%, 0.4%, 0.2%, 0.1%, 0.04% and 0.02%). Artificial honey and manuka honey were used as control. The minimum inhibition concentration (MIC) was determined by visual inspection and spectrophotometric assay. The plates were read using microplate reader at 620 nm. The minimum bactericidal concentration (MBC) assay was performed by re-plating the MIC concentration of each honey on nutrient agar. The results showed that all tested honey including artificial honey had substantial antibacterial activity against Shigella flexneri, Shigella sonnei, Pseudomonas aeruginosa and Staphlycoccus aureus. The MICs for manuka honey ranged between 6.3–12.5% (v/v) while for local honeys the range was between 6.3–25% (v/v). Malaysian honey exhibited comparable antibacterial activity as manuka honey. Therefore, further research to assess the antibacterial activity of Malaysian honey must be conducted to understand its true potential. View full abstract»

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  • A validated high-performance liquid chromatographic method for the determination of levodopa in rat plasma & its application in pharmacokinetic studies

    Page(s): 134 - 139
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (266 KB) |  | HTML iconHTML  

    Levodopa (l-dopa), the metabolic precursor of dopamine, has primarily been used for the treatment of Parkinson's disease (PD). A reversed phase high performance liquid chromatography (RP-HPLC) method with UV-detection at room temperature has been developed for analysis of levodopa. The method entailed direct injection of rat plasma sample after deproteinization using acetonitrile — propanol (1:1). The mobile phase comprises a mixture of water and acetonitrile containing 0.1% trifloroacetic acid. The flow rate was set at 1.0 ml/min with detector operating at 280nm and utilizes C18 (150 mm × 4.6 mm i.d. column) for the chromatographic separation. Under these conditions, the method was validated with respect to linearity, recovery, specificity, accuracy, precision, and stability. The described method was linear over a range of 0.39–200 μg/ml with mean correlation coefficient of 0.999. The percentage mean recovery was found to be 98.4%, while the coefficient of variation of within-day and between-day measurements were all less than 8%. The limit of quantification (LOQ) and limit of detection (LOD) of the method were 0.39 μg/ml and 0.19 μg/ml, respectively. This validated method was applied to determine the pharmacokinetic profiles of levodopa in rat plasma after its intestinal administration. View full abstract»

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  • Physicochemical properties and pharmacokinetic profiles of selected Malaysian honey

    Page(s): 140 - 145
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (250 KB) |  | HTML iconHTML  

    Four selected Malaysian honey namely Gelam, Nenas, Acacia and Tualang were studied to identify their physicochemical properties such as moisture content, electrical conductivity, total ash content, free acidity, pH, hydroxymethylfurfural (HMF), and sugar and diastase activity. The parameters were measured using methods recommended by International Honey Commission (IHC) and Council Directive (2001/110/EC). Total sugar content ranges from 34.7-47.6 g/100g, free acidity 32.98-121.9 meq/kg, pH 3.1-3.5, electrical conductivity 0.1-0.6 mS/cm, total ash content 0.1-0.3 %, moisture content 21.4-27.9%, HMF 0.4-5.6 mg/kg, diastase activity 0.6-4.1 DN and water insoluble solid 0.4-2.5%. All the physicochemical properties are within the acceptable limit except for moisture content due to high relative humidity in Malaysia. Furthermore, the intestinal absorption study of honey was carried out using a model drug, carboxyfluorescein (CF), in order to study its pharmacokinetic profiles. The results showed that honey can improve the bioavailability of CF in the intestine. The area under curve (AUC) in the presence of Gelam, Nenas, Acacia and Tualang were 3.5, 4.3, 3.0, and 2.3 fold respectively as compared to CF alone. The AUC value of selected Malaysian honey can be ranked as Nenas followed by Gelam, Acacia and Tualang. View full abstract»

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  • Comparative study between BD Falcon® and Corning® cell culture flask on viability and growth of breast, colon, liver and lung cancer cell lines

    Page(s): 146 - 148
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    Cancer is one of the greatest threats in the world affecting millions of people worldwide. In order to treat the disease, several methods have been designed including the use of cancer cell line research model in developing the most effective drugs. However, external environment of cancer cell lines e.g. substance of flask's surface may affect the investigation. Subsequently, the results are probably not valid for further study i.e. in giving positive false results. Therefore, in this study, human colonic (HCT116), human breast (MCF7), human lung (A549) and human liver (HepG2) cancer cell lines were cultured in two most common flasks i.e. Corning Costar ® and BD FalconTM. Viability and growth of the cells was observed using trypan blue staining and an inverted microscope. There is no significant difference in viability and growth of cancer cell lines which were cultured in different flasks. It suggests that cancer cell lines are robust and can grow in both cell culture flasks successfully. View full abstract»

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  • Dipterocarpaceae: Survival amidst degradation: A brief compilation for conservative prescription

    Page(s): 149 - 153
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (187 KB) |  | HTML iconHTML  

    Tropical rainforest, in a minute scale of geographical distribution on earth comprises 7% of total land surface, functions as a biodiversity haven for 50% of terrestrial life. Amazingly, in 10 ha of Borneo forest, 700 species of trees can be found which is equal to the whole species found in North America. Ecologically speaking, with the current situation of rainforest degradation, bird species for example, will experience the loss of 25% of 10 million species before the year of 2015, which equals to the 50 species a day. The major family in tropical rain forest, -Dipterocarpaceae, representing 40% of emergent trees and 30% of basal area in land and hill forest, where its forest management is a serious call for those who listen. This family has become the primary candidate for timber harvesting based on their strength and stability. The advent of timber harvesting with the introduction of Selective Logging became the first step of Malaysia towards utilization of forest derivatives. Since then, many logging systems were introduced and improved towards sustainable production for the sake of economic productivity and biodiversity conservation. Rehabilitation and forest management play a vital role in maintaining the resilience of this family yet the timber harvesting method should also need holistic amendments to sustain Dipterocarpaceae from its extinction and loses of important genetic diversity. This paper highlights the overview of Dipterocarpaceae as the main logging sources by describing its reproductive physiology, regeneration, their journey amidst degradation, the improvements of timber harvesting method towards sustainable future as well as compiling the past and present researches to find the gap of knowledge towards a core comprehension of this majestic family,- Dipterocarpaceae. View full abstract»

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  • Conservation of endangered species: In the case of Shorea macrantha

    Page(s): 154 - 157
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    Shorea macrantha (Kepong hantu), critically endangered species of Dipterocarpaceae that produce harder, heavier and more resinous than most merantis as well as its edible large fruits known as ‘engkabang bungkus’ is restricted to swamp and semi swamp localities and the vicinity of rivers. The Malaysian Plant Red List of Peninsular Malaysia Dipterocarpaceae reported that 35 species are endangered and 15 species are critically endangered. Of the critically endangered species, six are endemics to Peninsular Malaysia in which S. macrantha falls under this category as listed by the Red List and International Union for Conservation of Nature (IUCN). The species has degraded due to habitat degradation and land conversion. A total of 18 trees had been discovered in fragmented forest of Universiti Teknologi MARA (UiTM) campus in Sri Iskandar, Perak by Forest Research Institute Malaysia (FRIM) researchers. This paper is apparently focuses on the distribution, habitat, conservation status, morphological characteristics as well as threat to this species. In order to conserve the species, effective conservation initiatives should emphasize on monitoring the populations and aid its recovery and restoration as well as accomplish many studies to create better understanding on S. macrantha. The species are lone representatives of unique lineages and if it is extinct, the loss would not only mean loss of genetic diversity of a single species but of an entire lineage. View full abstract»

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  • Anthropogenic impacts on forest regeneration: Challenges and the way forward

    Page(s): 158 - 162
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    Today, world's forests have lost about one-third of its total areas since the beginning of civilization. The losses of world forests are alarming and have created serious challenges to the human life which include global warming. The loss of forest has been resulted in large degraded areas in many countries and is estimated reach 1 million ha. There are six anthropogenic activities that lead to the loss of forests worldwide namely poor land use policies, inadequate legislation, insecure property rights, agriculture and logging, limited capacity to enforce forest protection, and local and global demand for food and commodities. However, the agriculture and logging are the main causes of forest degradation which in turn decrease the forest productivity especially secondary forest. Regenerations are the act of renewing tree cover by establishing young trees promptly after previous stand has been removed. As an effort to maintain the forest benefits, the regeneration of new plant is recognized as an option to offset the loss of forests worldwide. It is reported that degraded land recovered to a new forest by natural regeneration (93%) and forest plantation (7%) which indicates the lack of effective management of forest regeneration. The forest destruction to date becomes a serious issue and human intervention is required to enhance the establishment of natural regeneration to rehabilitate world degraded forest. View full abstract»

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  • Multi temporal Landsat TM for monitoring mangrove changes in Pulau Indah, Malaysia

    Page(s): 163 - 168
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    This paper presents a change detection analysis of land use/cover in Pulau Indah, Selangor, Malaysia using a time series of Landsat Thematic Mapper (TM) imagery for the years of 1995, 1999 and 2005. The work aims at mapping the extent of mangrove resources, to detect the changes of mangrove area and to study the driving forces that have led to the changes of mangroves in Pulau Indah. Using Maximum Likelihood algorithm, the supervised classification procedure was used to classify the images which produced seven land/use class viz water, urban, grasslands, oil palm, mixed crop, mangroves and cleared area. The area of mangroves for the years 1995, 1999 and 2005 were estimated to be 7,738.4 ha, 6,648.1 ha and 6,524.1 ha, respectively. The decreased in mangrove areas for the first and second intervals were at the rate of 2.73% and 0.24% per annum, respectively. The accuracy of classified maps were evaluated using classification error matrices. From an individual classification, the overall accuracies of the 1995, 1999 and 2005 thematic maps were 98.0%, 97.1% and 95.8%, respectively. The decrease in mangroves in Pulau Indah for both intervals was mostly attributed to their conversion to urban areas driven by the government policies to transform part of the island into industrial park. View full abstract»

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  • Avian communities from differentially disturbed riparian forest along the Tembeling River, Taman Negara Pahang, Malaysia

    Page(s): 169 - 174
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    This study reports on the birds species sampled within the riparian and lowland forest at five sites (3 developed areas and 2 control areas) along the Tembeling River in Taman Negara Pahang (TNP), Malaysia. Birds were sample by utilizing standard mist nets (dimensions, 2.5 m × 9 m and 3 m × 14 m). Twenty eight families comprising 92 species were recorded. The Timaliidae (18.48%, 17 taxa) and the Pycnonotidae (15.22%, 14 taxa) were the two most abundant families recorded from the study sites. The latter, however, had higher species richness. The Shannon-Wiener diversity index (H') (range, 3.13–3.75), the Margalef's index (D') (range, 6.53–10.77) and the Pielou Evenness index (J') (range, 0.87–0.91) suggest high bird diversity at TNP. The study indicates that the forest habitats of Taman Negara Pahang are important bird areas and therefore should be conserved. View full abstract»

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  • An assessment of the distribution of the freshwater fishes of the Taman Negara Pahang, Malaysia

    Page(s): 175 - 180
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    Surveys on the distribution of fish fauna in Keniam River, Taman Negara Pahang were conducted from 16th–22nd March 2011. Fish were sampled from 12 stations from 3 different zones of the river, namely, the upper reaches, middle reaches, and lower reaches. A total of 17 fish species belonging to 4 families were recorded. Analyses based on the number of individuals caught showed that 82% of total catch was represented by the Cyprinids. Mystus nemurus and Mystacoelucus marginatus were the most distributed within the Keniam River being present in the upper, middle and lower reaches of the river. Species richness (Margalef's D) for fish ranged from 2.33 to 2.96 while the Shannon-Weiner (H') Diversity index ranged from 1.80 to 2.07. The upper reaches recorded highest diversity (H'=2.07, D=2.96) as compared to the other zones of the Keniam River. Approximately 82% or 14 species of the fishes sampled were juveniles or sub adults based on the ratio of their mean standard length to their maximum attainable length. View full abstract»

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