Physical Fitness And Metabolic Profile Among Malay Undergraduates Of A Public University In Selangor Malaysia,
2017
Universiti Brunei Darussalam
Physical Fitness And Metabolic Profile Among Malay Undergraduates Of A Public University In Selangor Malaysia, Emad M., Kandiah M., Lim W. K., Barakatun-Nisak M. Y., Rahmat A., Norasruddin S., Appukutty M.
ASEAN Journal on Science and Technology for Development
This study investigated health-related components of physical fitness consisting of morphological fitness (body fat % or BF %; Body Mass Index or BMI; and waist circumference or WC), metabolic fitness (blood glucose, lipid profiles and haemoglobin) and aerobic capacity (VO2max). This crosssectional study involved 324 undergraduates recruited voluntarily by systematic random sampling from a public university in the city Shah Alam, Selangor Malaysia. The respondents’ aerobic capacity was measured by field fitness tests and anthropometric measurements using standard protocols. The mean BMI of respondents was 22.51 ± 4.18 kg/m2, and majority of the respondents (93%) are within normal range of …
Factors Affecting Refrigerator-Freezers Energy Consumption,
2017
Universiti Brunei Darussalam
Factors Affecting Refrigerator-Freezers Energy Consumption, Saidur R. Saidur, Masjuki H.H., Mahlia T.M.I., Nasrudin A.R.
ASEAN Journal on Science and Technology for Development
Two frost-free household refrigerator-freezers, one with 492 liter capacity and one with 460 liter capacity were tested in the laboratory to determine the sensitivity of several variables those influence consumption refrigerator-freezers energy consumption greatly. The effects of single variables such as room temperature, thermostat setting positions, and door openings on the energy consumption were investigated. Using Response Surface Methodology (RSM), a mathematical model has been developed to investigate the combined effect of room temperature, thermostat setting positions, and door opening on the energy consumption of refrigerator-freezers. From the mathematical model, it has been observed that room-temperature has the highest effect …
Giant Magnetoresistance (Gmr): Spinning From Research To Advanced Technology,
2017
Universiti Brunei Darussalam
Giant Magnetoresistance (Gmr): Spinning From Research To Advanced Technology, Kok K.Y., Ng I.K.
ASEAN Journal on Science and Technology for Development
In this paper, we aim to examine the research and development of materials demonstrating the giant magnetoresistance (GMR) property, a novel material property that has revolutionalised the advances of magnetic sensor and mass-memory technology today. A comprehensive outline for the fundamental materials aspects as well as the physics of the underlying mechanisms behind the GMR property is given. Recent development of GMR materials in data storage industry and other potential technological applications exploiting the GMR property are also discussed.
Performance Of Membranes Crosslinked With Glutaraldehyde In Pervaporation Separation,
2017
Universiti Brunei Darussalam
Performance Of Membranes Crosslinked With Glutaraldehyde In Pervaporation Separation, Tan S.H., Ahmad A.L., Nawawi M.G. Mohd., Hassan H.
ASEAN Journal on Science and Technology for Development
Chitosan membranes crosslinked with glutaraldehyde (GA) were prepared through a solution method, where the dry homogeneous chitosan membranes were immersed into the reaction solutions containing 1.25 x 10-3 wt. % of glutaraldehyde (GA). The extent of the crosslinking was controlled by varying the crosslinking time from 1 to 5 minutes. The prepared crosslinked membranes were used for pervaporation dehydration of isopropanol-water mixtures. The influence of feed composition on the separation characteristics has been investigated. The 2-minute-crosslinked-membrane yields the highest water concentrations in the permeate with moderate flux at 50 wt. % of isopropanol in the feed solution. The overall pervaporation …
Catalytic Activity Of Zsm-5 Zeolite Loaded With Transition Metals For The Selective Catalytic Reduction Of Nox,
2017
Universiti Brunei Darussalam
Catalytic Activity Of Zsm-5 Zeolite Loaded With Transition Metals For The Selective Catalytic Reduction Of Nox, Saaid I.M., Mohamed A.R., Bhatia S. Bhatia
ASEAN Journal on Science and Technology for Development
Catalytic activity measurement were carried out on catalysts formulated from ZSM-5 zeolite separately loaded with transition metals (Cu, Co, Ni, Fe) for the removal of NOx in simulated diesel exhaust conditions. Various factors were investigated to compare the performance of these catalysts including catalyst preparation method, Si/Al ratio of the parent zeolite support, and durability in the exhaust stream containing water vapor or SO2. In many experimental conditions except in the presence of water vapor or SO2, Cu-ZSM5 remained the most active catalyst with 100% NOX conversion at around 350°C. C0-ZSM5 and Ni-ZSM5 could also achieve complete NOx conversion but …
Using Two Time Scales Of Turbulence For Boundary Layer Flows,
2017
Universiti Brunei Darussalam
Using Two Time Scales Of Turbulence For Boundary Layer Flows, Saeid Nawaf H.
ASEAN Journal on Science and Technology for Development
A near wall improvement of the k-ε model of turbulence is proposed and evaluated. The present model takes into account the asymptotic behavior of turbulent scales near wall region and for free turbulence region. The Kolmogorov turbulent time scale is introduced as a lower limit. The model is used for prediction of turbulent boundary layer flows. Predictions compared with experimental data of several flow cases, with encouraging results.
Design Of Robust H∞ Power System Stabilizer Using Normalized Coprime Factorization,
2017
Universiti Brunei Darussalam
Design Of Robust H∞ Power System Stabilizer Using Normalized Coprime Factorization, Ngamroo I., Dechanupaprittha S.
ASEAN Journal on Science and Technology for Development
This paper proposes a new design procedure of robust power system stabilizers (PSS) using H∞ control via normalized coprime factorization (NCF) approach. The design procedure of the proposed PSS is systematically described. Moreover, the selection method of the weighting function in H∞ control design is explained in a simple manner. The performance and robustness of the proposed PSS are investigated in comparison with the conventional PSS by examining the case of a single machine connected to an infinite bus (SMIB) system. The simulation results are illustrated to ensure the effectiveness of the proposed PSS.
Electron Microscopy Of Entomopathogenic Fungal Invasion On The Cabbage-Heart Caterpillar Crocidolomia Binotalis Zeller (Lepidoptera: Pyralidae),
2017
Universiti Brunei Darussalam
Electron Microscopy Of Entomopathogenic Fungal Invasion On The Cabbage-Heart Caterpillar Crocidolomia Binotalis Zeller (Lepidoptera: Pyralidae), Hashim N., Ibrahim Y.B., Tan Y.H.
ASEAN Journal on Science and Technology for Development
The infection on Crocidolomia binotalis Zeller by the entomopathogenic fungi Paecilomyces fumosoroseus (Wise) Brown and Smith, Beauveria bassiana (Bals.) Vuill, and Metarhizium anisopliae var. majus (Metsch.) Sorokin was studied histopathologically using electron microscopy. Conidia which landed on the cuticle germinated within four to six hours. In the case of B. basiana, shortly after landing, an appresorium was formed that attached itself fast onto the cuticle at the point of fungal entry. The infected larva then entered the moribund state 12 to 24 hours after inoculation. Death of the larva followed 24 to 48 hours later. By then the body cavity …
Using Crude Palm Oil (Cpo) As Diesel Engine Fuel,
2017
Universiti Brunei Darussalam
Using Crude Palm Oil (Cpo) As Diesel Engine Fuel, Lim T.H., Bari S., Yu C.W.
ASEAN Journal on Science and Technology for Development
In this study, heating was used to lower the viscosity of CPO to an acceptable level. 60°C was found to be the optimum heating temperature for CPO to ensure smooth flow in the fuel system, but heating further up to 100°C did not improve the engine performance. A comparison between CPO and diesel in terms of engine performance, combustion characteristics and emission showed that the brake specific fuel consumprion (bsfc) for CPO was 13% higher at 400 kPa brake mean effective pressure (bmep), and the highest bmep achieved was 13.5% lower. However, CPO fuel gave a brake thermal efficiency. Combustion …
Narrowing The Digital Divide In Malaysia: Issues And Initiatives,
2017
Universiti Brunei Darussalam
Narrowing The Digital Divide In Malaysia: Issues And Initiatives, Foo L.N., Lai W.K., Elamzazuthi C.
ASEAN Journal on Science and Technology for Development
Equity of and access to information and communication technologies (ICT) is currently a burning issue in many countries around the world. Malaysia, as a nation with about 22 million inhabitants, has taken some strong strides in recent times to bridge the access and equity gaps through appropriate policies and strategic national programmes. This paper will examine some of the key elements of several of these initiatives to bridge the digital divide in the country, in particular, the Titian Digital programme. We will also be identifying some of the major challenges that this programme hopes to resolve.
Thermal Performance Prediction Of Plastics Ball Grid Array (Pbga) Using Artificial Neural Network,
2017
Universiti Brunei Darussalam
Thermal Performance Prediction Of Plastics Ball Grid Array (Pbga) Using Artificial Neural Network, Leong C.H., Azid I.A., Seetharamu K.N.
ASEAN Journal on Science and Technology for Development
Artificial Neural Network (ANN) based on feed-forward backpropagation model is used to predict junction temperature in PBG A package. The limited results obtained from FEM (using IDEAS software) are used to train the neural network. The effect of source power, substrate and mold compound thermal conductivity, die size, substrate thickness and air velocity on junction temperature and thermal resistance has been investigated using ANN. The predicted junction temperature using ANN agrees closely with the prediction from FEM. ANN method takes a small fraction of the time and effort compared to that required by HEM for prediction.
Fusion Decision For A Bimodal Biometric Verification System Using Support Vector Machine And Its Variations,
2017
Universiti Brunei Darussalam
Fusion Decision For A Bimodal Biometric Verification System Using Support Vector Machine And Its Variations, Teoh A., Samad S.A., Hussain A.
ASEAN Journal on Science and Technology for Development
This paw presents fusion detection technique comparisons based on support vector machine and its variations for a bimodal biometric verification system that makes use of face images and speech utterances. The system is essentially constructed by a face expert, a speech expert and a fusion decision module. Each individual expert has been optimized to operate in automatic mode and designed for security access application. Fusion decision schemes considered are linear, weighted Support Vector Machine (SVM) and linear SVM with quadratic transformation. The conditions tested include the balanced and unbalanced conditions between the two experts in order to obtain the optimum …
Study Of Preparation And Characterization Of Hydroxyapatite Coatings By Sol-Gel Technique,
2017
Universiti Brunei Darussalam
Study Of Preparation And Characterization Of Hydroxyapatite Coatings By Sol-Gel Technique, Ramanan Sutapa Roy, Venkatesh Ramanan
ASEAN Journal on Science and Technology for Development
Hydroxyapåtite (HAP) coatings were prepared on glass substrates by sol-gel dip coating method, using a isopropanol solution of calcium nitrate and 2-butanol solution of phosphorous pentoxide as starting precursors and mixing them to get a coating solution with Ca/P ratio of 1.67. The prepared coatings were dried at 150°C and subsequently fired at 500°C to obtain dense coatings. Multilayer coatings were prepared to increase the final thickness. For some samples, SiO2, TiO2, Al2O, and Zr02 coatings modified the interface between the glass and HAP. X-ray diffraction, scanning electron microscopy, FTIR and DTA/TG were used for characterization. All the coatings obtained …
Analysis Of Quality Costs For Statistica Quality Control Planning,
2017
Universiti Brunei Darussalam
Analysis Of Quality Costs For Statistica Quality Control Planning, Chiadamrong N., Thaviwatanachaikul C.
ASEAN Journal on Science and Technology for Development
Quality has become one or the most important force leading to organizational success and company growth in national and international markets. The return-on-investment from strong and effective quality programs is providing excellent profitability results in firms with effective quality strategies. Due to the wide variation in quality results, the search for the genuine keys to success in quality has become a matter of deep concern to management of companies. This paper suggests a way to quantifying quality costs. As a result, the appropriate quality strategies can be adjusted and set to match with each company situation based on the categorization …
A Sensitive Assay For Non-Specific N-Methyltransferase Activity In Rat Tissues By High-Performance Liquid Chromatography Electrochemical Detection,
2017
Universiti Brunei Darussalam
A Sensitive Assay For Non-Specific N-Methyltransferase Activity In Rat Tissues By High-Performance Liquid Chromatography Electrochemical Detection, Shimbhu Dawan, Kojima Kohichi, Nagatsu Toshiharu
ASEAN Journal on Science and Technology for Development
Phenylethanolamine N-methyltransferase (PNMT) and non-specific N -methyltransferase (EC 2.1.1.28) catalyze the N-methylation of aromatic amines. PNMT is specific for phenylethanolamines such as noradrenaline (NA). and catalyzes the step in catecholamine biosynthesis, forming adrenaline (AD) from NA. PNMT activity is high in adrenal gland, whereas non-specific N-methyltransferase is distributed in various tissues such as the lungs. Borchardt et al. first reported a method to detect PNMT activity by high-performance liquid chromatography electrochemical detection (HPLC-EICD), which could demonstrate the activity only in the adrenal medulla and hypothalamus. Recently, Troeewicz et al. reported a highly sensitive assay method for PNMT using HPLC-EICD by …
Mitigating Co Emissions From The Power Sector: Least-Cost Analysis Of Policy Options In Thailand,
2017
Universiti Brunei Darussalam
Mitigating Co Emissions From The Power Sector: Least-Cost Analysis Of Policy Options In Thailand, Limmeechokchai Bundit, Tanatvan Somporn, Shrestha Ram M.
ASEAN Journal on Science and Technology for Development
Traditionally, the method used in the electricity generation expansion planning has concentrated only on the supply-side options to identify the sequence of generation additions meet the forecasted demand at a minimum cost. Electricity generation expansion planning with both supply- and demand-side options, commonly known as integrated resource planning are also being used in some developed countries. With growing environmental concerns, especially the emission of air-pollutants from the power generation, demand-side management and clean and efficient generation technology options in the power sector development are getting increasing attention. In this paper, we compare the traditional planning approach with integrated resource planning. …
Steady State Finite Element Analysis Of A Single Stack Cold Plate With Heat Losses,
2017
Universiti Brunei Darussalam
Steady State Finite Element Analysis Of A Single Stack Cold Plate With Heat Losses, Quadir G. A., Bell Shiao Lin, Seetharamu K. N., Hassan A. Y.
ASEAN Journal on Science and Technology for Development
Steady state analysis of a single stack cold plate used for the cooling of electronic components is carried out using the finite element method. The present methodology takes into account the heat losses from the top and bottom surfaces of the stack. In addition dimensionless parameters are used in the analysis. The analysis is divided into two parts: a single unit cell analysis and the analysis of the assembly of several unit cells. The results from the present analysis of a single unit cell for single stack cold plate without heat losses compare well with those available in the literature. …
Multiplikasi Tunas Mikro Pisang (Musa Paradisiaca L.) ‘Raja Bulu’ Secara In Vitro Pada Berbagai Jenis Dan Konsentrasi Sitokinin,
2017
Program Studi Agroteknologi, Fakultas Pertanian, Universitas Padjadjaran
Multiplikasi Tunas Mikro Pisang (Musa Paradisiaca L.) ‘Raja Bulu’ Secara In Vitro Pada Berbagai Jenis Dan Konsentrasi Sitokinin, Tiara Elma, Erni Suminar, Syariful Mubarok, Anne Nuraini
Jurnal Kultivasi
Terbatasnya ketersediaan bibit pisang bermutu di Indonesia disebabkan oleh masih rendahnya jumlah dan kualitas bibit pisang yang dihasilkan melalui metode konvensional. Waktu yang dibutuhkan untuk mendapatkan bibit cukup lama, oleh karena itu digunakan suatu metode perbanyakan untuk menghasilkan bibit dalam waktu yang relatif singkat melalui metode kultur jaringan. Tujuan dari penelitian ini adalah untuk mendapatkan salah satu jenis dan konsentrasi sitokinin terbaik dalam meningkatkan laju multiplikasi tunas pisang raja bulu secara in vitro. Percobaan dilaksanakan dari bulan November 2016 sampai bulan Maret 2017 di Laboratorium Kultur Jaringan dan Teknologi Benih Fakultas Pertanian Universitas Padjadjaran di Jatinangor, Sumedang. Rancangan Acak Lengkap …
Advanced Biotechnology Tools For Invasive Species Management,
2017
University of Nebraska - Lincoln
Advanced Biotechnology Tools For Invasive Species Management, Invasive Species Advisory Committee
National Invasive Species Council
Increasingly, genetic tools are being used to detect and solve pressing environmental, social, and health-related challenges. It is clear that investments in technology innovation can be game changing, as advances in biotechnology may provide new methods to protect the nation’s resources from the negative impacts of invasive species. The current toolbox of management options is recognizably insufficient to deal with many of the high-impact species that have been introduced. However, “surrendering” to these species is generally not a viable option from ecological, health, economic, socio-cultural, or political perspectives. Cost-efficient solutions to these “grand invasive species challenges” need to be found. …
Pembentukan Ubi Mikro Kentang (Solanum Tuberosum L.) Pada Berbagai Komposisi Media In Vitro,
2017
Program Studi Agroteknologi, Fakultas Pertanian, Universitas Padjadjaran
Pembentukan Ubi Mikro Kentang (Solanum Tuberosum L.) Pada Berbagai Komposisi Media In Vitro, Inneke Amalia, Anne Nuraini, Sumadi, Syariful Mubarok, Erni Suminar
Jurnal Kultivasi
Permasalahan umum terkait pada produksi kentang adalah penggunaan benih sumber yang kurang bermutu dan mengalami kemunduran benih. Penelitian bertujuan untuk menentukan zat penghambat tumbuh coumarin, jasmonic acid dan paklobutrazol yang tepat untuk pertumbuhan stek dan pembentukan ubi mikro kentang secara in vitrosehingga dapat digunakan untuk penyediaan bibit berkualitas. Percobaan dilaksanakan di Laboratorium Kultur Jaringan Teknologi Benih Fakultas Pertanian Universitas Padjadjaran Jatinangor, Sumedang, pada bulan Oktober 2015 sampai Mei 2016. Metode percobaan yang digunakan adalah Rancangan Acak Lengkap (RAL) yang merupakan kombinasi dari media, retardan coumarin (105 mg L-1 dan 120 mg L-1), paklobutrazol (0.4 mg L-1 dan 1 mg L-1) …
