Displaying publications 1 - 20 of 105 in total

Abstract:
Sort:
  1. R. Junin, M. Alizadeh, Z. Movahed, R. Mohsind, M. Alizadeh, M. Alizadeh
    MyJurnal
    This work will explain the processes that follow a reservoir heterogeneity analysis that is
    conducted using image logs. The data for this work comprises of image logs of tree wells, which are
    obtained from Gachsaran field. The main formations under study in this work are the Asmari
    formation, Pabdeh formation and Gurpi formation. This work will explain the process through a
    number of valuable log interpretation examples.
  2. J. Sahari, Shah, M. K. M, Nuratiqah, M.N., Rao, M.M.
    MyJurnal
    Empty fruit bunches and wastepaper together with urea formaldehyde (UF) were
    evaluated to figure out potential applications in engineering field. The purpose of this project is to
    determine the mechanical properties of a new high density board. This composite was manufactured
    by hot-press technique with 3 different ratios i.e. 10:0, 6.67:3.33 and 9.33:0.67. The mechanical
    properties were evaluated using the GOTECH/AI-7000M Electronic Mechanical Testing. Tensile tests
    were carried out according to ASTM D638. The results were analysed to calculate the tensile
    strength. Tensile strength at break ranged from 4.712 N/mm2 to 12.941 N/mm2 while hardness
    number obtained ranged from 6.76 RHN to 75.84 RHN. This fibreboard has better properties when
    reinforced with wastepaper compared to that of 100% empty fruit bunches. It is also found that the
    hardness number is higher, which means that this fibreboard can withstand any load not more than
    75.84 RHN. Finally, through Scanning Electron Microscope (SEM), the surface structure of the new
    high density board has been studied in terms of their surface morphology.
  3. Abbas, M.R., Dasin, D.Y., Aliyu, A.S.
    MyJurnal
    Rural communities in sub Saharan Africa have spent considerable time and energy in
    their quest for obtaining cooking requirements. The utilization of solar energy for cooking is not a
    widespread practice despite the fact that African countries are abundant in solar resources. A solar
    cooker uses the freely, environmentally friendly, healthy and renewable solar energy resource as its
    energy source, thus indicating its economical and sustainability advantages. This paper demonstrates
    the possibility of using solar energy as an alternative to the traditional system of cooking local
    foodstuffs within the rural communities of North-East Nigeria. The cooker was designed and fitted
    with a black pot and an automatic tracking mechanism that can track the sun at 10° per hour,
    following the sun movement for use in tropical dry climates. Parboiled rice of 1kg each was cooked
    completely in 75 minutes at an average solar beam radiation of 623W/m2
    after attaining maximum
    temperature of 368K under clear weather condition. Whereas 1kg of beans and 1.1kg of yam were
    cooked in 90 minutes at an average solar beam radiation of 536.5W/m2
    and 430.1 W/m2
    respectively.
    The highest temperature reached for this test was 368K. The results indicated that a parabolic solar
    cooker can easily cook these varieties of Nigerian local dishes within the range of 75 to 90 minutes
    under the clear weather condition of Bauchi, north–east of Nigeria.
  4. Muhammad Yazid, A. W., Mohamed Salim, S., Nor Azwadi, C. S., Mansor, S.
    MyJurnal
    This article describes the approach towards a sensitivity study of wind flow and pollutant
    dispersion in an idealized street canyon with tree plantings under thermal atmospheric conditions
    using computational fluid dynamics (CFD). First, validation studies were performed to determine the
    best turbulence model for the simulation of wind flow under thermal atmospheric conditions against
    the previous experimental wind tunnel data. The results of the numerical simulation indicate that
    large eddy simulation (LES) can accurately predict the wind flow structure at different thermal
    intensities and different locations of heated wall. Finally, detailed descriptions of future research are
    presented at the end of this article.
  5. Che Sidik, N. A., Adnan Alawi, O.
    MyJurnal
    Nanofluid has become one of the interesting topics for engineers working for decades to
    develop more efficient heat transfer in different applications. Nanorefrigerant, as a combination of
    nanoparticles and refrigerant, is a new concept that has been recently investigated by number of
    researchers. Electricity consumption usually varies from one sector to another. Generally, residential
    sector is one of the biggest electricity consumers in Malaysia. Based on the literature, 26.3% of
    electricity consumption in the residential sector in Malaysia is allocated to refrigerator–freezers.
  6. Hamid, R. A., Ungku Ahmad, U. N. K.
    MyJurnal
    This paper reviews the conceptualization and relationship among work-family conflict,
    burnout, social support and turnover intention using Job Demand Resources (JD-R) model. From the
    theoretical framework of JD-R model, there is a relationship between job demand and resources that
    gives impact to organization outcome. In addition, empirical evidence also shows that a relationship
    exists between the above variables. Organization should address proactively how job demand and
    resources influence each other that lead to organization outcome. Comprehensive understanding
    regarding the above matter gives opportunity for organizations to take reasonable action to ensure
    employees well-being and give benefit to the organizations themselves.
  7. M. N. Rashidi, Ara Begum, R., M. Mokhtar, Pereira, J. J.
    MyJurnal
    Acquisition of adequate and meaningful research data, as well as the appropriate analysis
    is important in ensuring the strategic direction and objectives of the study are well achieved. Data
    analysis is an important element in any study. Good data analysis is obtained from the study that is
    carefully planned based on an appropriate design, as well as the approach that is used in the process
    of analysing the data. The objective of the study to be conducted is to determine the weight of criteria
    for sustainable construction. Therefore, the right selection of data analysis is very important to ensure
    that the objectives are successfully achieved. This manuscript writing presents the description of the
    data analysis used in this study, by applying the Rasch measurement model to meet the objective. In
    addition, by using this measurement model, the importance of calibrating the measurement instruments
    are also highlighted, which involves separating the misfit raw data through the analysis to ensure
    statistically more accurate analytical results. Evaluation of the quality of the technical aspects for each
    of the involved item is very important in the measurement model. The analysis will be able to improve the reliability of the items which could indirectly serve the purpose of calibrating the instrument to
    ensure a more accurate measurement to produce a meaningful research.
  8. Rashidi, M. N., Begum, R. Ara, Mokhtar, M., Pereir, J. J.
    MyJurnal
    Research implementation methodology is an important element in any study. Good data
    are obtained from the study that is carefully planned based on an appropriate design, as well as the
    approach that is used in the process of obtaining the data. The main objective of the proposed study is
    to identify criteria for sustainable construction. Therefore, the right selection of study design and
    implementation methodology is very important to ensure that the objectives are successfully achieved.
    This manuscript writing presents the description of the design and implementation methodology used
    in this study, namely content analysis, to meet the objective. Justification for the selected method to
    achieve the objectives of the study is also discussed.
  9. Nor Rashidi, M., Mokhtar, M., Pereira, J. J., Begum, R. Ara
    MyJurnal
    Selection of a suitable and appropriate method is an important aspect in ensuring successful
    implementation of a research. The proposed study aims to obtain weights for sustainable construction
    criteria from the input and perception of industrial practitioner, and also to explore their opinion on
    the criteria. Therefore, the selection and use of study implementation method will determine the
    direction of the study whether the intended objectives can be achieved. This manuscript writing presents
    the description of the structured interview used to obtain and collect the required data. The suitability
    and implementation of the methods have been described in this study, in which the ultimate aim of its
    application is to ensure that the collected data is meaningful to the study.
  10. Wan Ahmad, W.F., A. Sarlan, D. Al-Arabiat
    MyJurnal
    Mobile learning (M-learning) is considered as a development process of Electronic learning
    (E-Learning) that used to meet some of issues in E-learning such as wireless environment and
    accessibility. In spite of having many benefits and advantages for using M-learning, many challenges
    and issues still facing mobile learning technology to become a part of most of the Higher Education
    Institutions (HEIs) strategies. This paper aims to examine the barriers to M-learning adoption by HEIs
    in Malaysia. To do so, a quantitative research methodology was used in data collection. Online
    questionnaire was distributed by e-mail to 150 respondents in three universities. The result analysis
    brought out that mobile storage size, limitation of mobile memory and mobile battery life are the main
    barriers of using mobile in learning process.
  11. S. Qaiyum, Aziz, I.A., N. Haron
    MyJurnal
    With the rapid evolution of smart devices, ease of availability and accessibility of Internet
    application services, the demand of user's level of satisfaction are constantly growing. This creates
    challenges when mobile users in large quantity gather at confine places creating a scenario of highdensity
    wireless network environment (HDWN). Guaranteeing high quality of services (QoS) without
    proper understanding of user’s expectations and their Quality of Experience (QoE) may lead to over
    provisioning of resources. This poses different challenges to network service providers. Moreover,
    limited studies have been found relating to QoE in dense network. The objective of this paper is to
    develop mapping mechanism that maps QoS parameters onto QoE metrics in HDWN. This paper
    proposes fuzzy-genetic algorithm to map QoS-QoE based on the critical comparative analysis of
    different mechanisms. Preliminary analysis had been done based on mathematical model to establish
    the correlation between QoS parameters (delay and jitter) and QoE metrics (satisfaction) to determine
    the maximum and minimum impairment threshold. Further, the correlation between QoS-QoE had been
    evaluated with varying traffic load to determine the traffic load impact on QoE. Also the load threshold
    was found, that would help the network providers to take proper measure to maintain user’s satisfaction
    as the maximum threshold limit is reached.
  12. F. Mohd Fadzilah, Arshad, N.I.
    MyJurnal
    Mobile health (m-health) has become one of most concerned and developing areas in
    healthcare industry. There are large numbers of m-health application available in the market. Yet,
    neither theorist nor practitioners has discover or develop a framework in evaluating the impact of nonclinical
    m-health application. In healthcare industry, it is very important for an m-health application
    to be tested first before release to market, as this could lead to negative impact towards user especially
    patients. Money could be wasted and the m-health apps might not derived correct output. To avoid a
    failure in using non-clinical m-health application, the impact of using it need to be evaluated.
    Nonetheless, to come out with a proposed framework for m-health apps evaluation, the theories and
    results of the existing frameworks should be referred to. Thus, this research aimed to discuss on the
    previous frameworks that are possible to be used as reference in proposing the intended framework.
    The new developed framework is expected to be significant and valuable for all m-health developers
    and doctors in the design and use of non-clinical m-health application.
  13. A. Ahmad, A. Yaakob, Mohd, K.W., Mohd Awal, N.A., Samuri, M.A.A.
    MyJurnal
    The past decade has seen a growing recognition internationally that children have a right
    to participate in matters that affect their lives. In a family legal proceeding, it is in practice left to the
    discretion of a judge to decide whether the child is heard. Interviews have become the most common
    approach by family court judges in Malaysia to resolve problematic custody disputes. However, many
    family law practitioners believe that this can be detrimental to the children as the judges are not experts
    in child psychology and counselling. Hence, this article intends to critique the effectiveness of Sulh
    (mediation) procedure in resolving custody dispute (hadhanah) in the Syariah Court. Despite the
    importance of consulting the affected children, their views are rarely sought nor acknowledged within
    the judicial setting. Legal fraternity and parents play a significant influence on whether children’s are
    heard in court and Sulh chamber. There is a need for further research to explore legal professionals’ and parents’ perspectives on children’s active involvement in decision-making. This information could
    be used to develop guidelines that will assist professionals and parent in facilitating and supporting
    children’s participation.
  14. Ghandvar, H., Idris, M.H., N. Ahmad
    MyJurnal
    Al-20%Mg2Si composite was in situ synthesized and modified by the addition of Ba and Bi;
    the microstructure of the resulting composites will be investigated. It is expected that the comodification
    with Ba and Bi effectively refined the morphology of Mg2Si which is attributed to the
    formation of fine Ba2Bi particles that acted as the heterogeneous nucleation sites for the primary Mg2Si
    particles, resulting in a refined distribution of these precipitates. Therefore, the addition of Ba and Bi
    can provide a better effect than only the addition of Bi or Ba separately.
  15. T.R. Ibrahim, Jamil, M.M., Adamu, M.I., Hashim, G. A.
    MyJurnal
    In this paper, Reynolds average Navier stokes models simulation was computed
    with standard k-є, realizable k-є and SST k-w.The three models were proposed to forecast the
    turbulence flow behaviour inside a rectangular channel with two baffle plates. The geometry
    and the grid were generated using commercial CFD software fluent. The flow behaviours of
    three models were characterized based on positions of the entrance to the first baffle,
    positions between first and second baffle and lastly the second baffle. At the three different
    positions the three models studied have demonstrate differences in the velocity profiles and
    separation range. Comparison with previous literatures shows applicability of these three
    models to produce velocity profile characteristics and separation behaviours. Even though
    some of the models have shown slight deviation from the experimental results but in general
    the three models were considered to be in close agreement with most published literatures.
  16. Mat Salleh, N.S., Din, R., Abdul Manaf, S.Z., Hamdan, A., Karim, A.A.
    MyJurnal
    A questionnaire Usability Self Learning Module is developed to measure the overall
    development of the learning module Adobe Photoshop constructs involving three modules, module’s
    usability, applying theory of the cognitive load and minimalist. The study was conducted to produce
    empirical data on the reliability and validity of the Usability of Adobe Photoshop’s Module
    questionnaire using the Rasch Measurement Model. A survey was conducted on 120 participants who
    attended the course Adobe Photoshop using the modules studied. The questionnaire is distributed
    using one of the Web 2.0 technology platform, Google Docs. The reliability and validity of the
    Usability Adobe Photoshop’s module questionnaire were tested with the Rasch Measurement Model
    using the Winstep version 3.69.1.11 program.The Rasch analysis showed that person reliability index
    is 0.87 and item reliability of 0.94. In term of item polarity, each item was able to contribute to
    measuring the effectiveness of the learning module development measurement since the PTMEA
    CORR exceeded 0.30, in specific between 0.50 to 0.78. There are 27 items in the questionnaire, which
    is divided into 3 different constructs. Each construct contains 7 to 11 items. The unidimensionality test
    conducted showed standardized residuals variance of 49.8%, with the biggest secondary dimension
    in the first constrast amounting variance of 6.5%. Item fit analysis showed that none of the items
    needed to be dropped since infit mean square values are between 0.73 and 1.39, and the outfit mean
    square values are between 0.70 and 1.40. Items in the questionnaires are ordered in a continuum of
    increasing intensity for the measurement of the Usability of Module construct. This shows the validity
    of the constructs in Usability of the module.The Rasch Measurement Model shows that the Usability
    of the Module has a high reliability and validity to be used for measuring the usability of the module
    and the application of cognitive load theory and the theory of minimalism
  17. Razali, A.A., Sadikin, A.
    MyJurnal
    This paper presents a numerical simulation of flow in a microchannel heat sink. The channel
    was defined as a dimension with less than 1.0milimeter and greater than 100.0micrometer. The ANSYS
    CFX 2015 was used to predict the flow in the microchannel. Besides, simulations were undertaken to
    determine the flow of the fluid within the microchannel in three different models. Therefore, three
    different models were employed for this study. The first model was a square-shaped channel with 0.5mm
    width and 0.5mm height constructed along 28.0mm channel length. The second and the third models
    were in rectangular shape. The differences between these models were their width and height of
    channel. The dimension for the second model was 0.75mm height and 0.5mm width (rectangular A),
    while the dimension for the third model was 0.5mm height and 0.75mm width (rectangular B). All the
    microchannel heat sink models had been simulated and showed results for pressure, temperature, and
    velocity inside the microchannel. The results were compared for each model and the data had been
    validated from published data. In addition, the initial velocity was set in a range between 0.1m/s and
    0.5m/s. The highest pressure drop was recorded for the square microchannel. It was 58.12% higher
    than the pressure drop found in the rectangular microchannel with 0.75mm width, while 0.02% closer
    with the 0.75mm-height rectangular microchannel. Furthermore, there was a 33.34% of temperature
    difference, which had been higher for the square microchannel. Nevertheless, the highest velocity of
    0.57m/s was recorded at the outlet of the microchannel. These had been consistent with other published
    data.
  18. Supri, A.G., Siti Hajar, M.D., Jalilah, A.J.
    MyJurnal
    Blends of poly (vinyl chloride) and poly (ethylene oxide) with the addition of carbon black
    as filler was prepared via solution casting technique to fabricate a conductive polymer film. Besides,
    poly (ethylene glycol diglycidyl ether) (PEGDE) was added into the formulation in order to improve its
    properties. The surface morphology of the conductive polymer film was characterized via scanning
    electron microscope (SEM). The results showed that the conductivity of the film was greatly enhanced
    by incorporating the PEGDE as the surface modifier in the PVC/PEO conductive polymer film.
  19. S. Suhaili, T. Watanabe
    MyJurnal
    Cryptographic algorithm has become one of the most important aspects in hardware
    implementation of embedded security system design. Message Digest (MD) is one of the cryptographic
    algorithms that can be used in any security design application. Nowadays, designing the high speed,
    low power, and small area implementation of cryptographic algorithms on reconfigurable hardware is
    one of the critical subjects for hardware application. The purpose of this paper had been to analyse the
    structure of MD5 hash function for high performance implementation in order to obtain small area
    implementation, as well as to increase the speed of the design on FPGA. In this paper, the frequency
    maximum for MD5 design with both grey and binary signal encoding is discussed. The results retrieved
    from the analysis showed that the differing results were caused by the switching bit of the signal input.
    Besides, the frequency maximum of MD5 that employed binary signal encoding provided the highest
    frequency maximum with smaller area implementation. By using grey signal encoding, the frequency
    maximum was almost similar to the MD5 binary signal encoding, but it suffered larger area
    implementation. On top of that, this research focused on timing and area implementation of the design,
    where TimeQuest timing analyser was applied to optimize the output of the desig
  20. Suriania, M.J., Alib, A., Khalina, A., Sapuan, S. M.
    MyJurnal
    In this study, fatigue failures of bio-composite materials were predicted due to
    manufacturing defects. Kenaf bast fibres were used to fabricate a bio-composite material with epoxy as
    a binding material. The bio-composites were manufactured by using a hand lay-up process. The defects
    in the Kenaf/epoxy bio-composite were determined by a non-destructive technique using Infrared
    thermal imager. Besides, the thermography analyses were verified via optical microscope and scanning
    electron microscope (SEM) investigations. Determinations of fatigue, as well as damage had been
    predicted, and it was found that the damage could be fixed with the predicted results.
Related Terms
Filters
Contact Us

Please provide feedback to Administrator (afdal@afpm.org.my)

External Links