Policy Framework for Bridging the Digital Divide in Malaysia

Baharom Jani 정보통신정책연구원 2002 세미나및공청회 Vol.2002 No.

Certification of Ca, Mg, and K in human plasma reference material using isotope dilution inductively coupled plasma mass spectrometry

Norliza Baharom,임용현 대한화학회 2021 Bulletin of the Korean Chemical Society Vol.42 No.12

Human plasma is an extracellular fluid containing elements that play an essential role in maintaining physiological balance and are therefore indispensable for human survival. A human plasma certified reference material (CRM) was developed for the accurate analysis of elements in clinical samples. Mass fractions of Ca, Mg, and K in the human plasma CRM were determined using isotope dilution inductively coupled plasma mass spectrometry. The certified values and associated expanded uncertainties obtained for Ca, Mg, and K were (74.77?±?0.90), (15.95?±?0.14), and (125.1?±?5.4) mg/kg, respectively. The unit-to-unit variations in the elemental mass fractions evaluated from 12?units showed relative standard deviations of <1.7%, demonstrating sufficient homogeneity as the candidate CRM. A stability assessment was conducted and no noticeable changes were observed after long-term storage for 21?months at ?70 °C as well as short-term transportation for 7?days at room temperature.

Emotional Design for Games : A Framework for Player-Centric Approach in the Game Design Process

Shahrel Nizar Baharom,Wee Hoe Tan,Mohammad Zaffwan Idris 보안공학연구지원센터 2014 International Journal of Multimedia and Ubiquitous Vol.9 No.10

Direct shear behavior of concrete filled hollow steel tube shear connector for slim-floor steel beams

Emad Hosseinpour,Shahrizan Baharom,Wan Hamidon W. Badaruzzaman,Mahdi Shariati,Abdolrahim Jalali 국제구조공학회 2018 Steel and Composite Structures, An International J Vol.26 No.4

In this paper, a hollow steel tube (HST) shear connector is proposed for use in a slim-floor system. The HST welded to a perforated steel beam web and embedded in concrete slab. A total of 10 push-out tests were conducted under static loading to investigate the mechanical behavior of the proposed HST connector. The variables were the shapes (circular, square and rectangular) and sizes of hollow steel tubes, and the compressive strength of the concrete. The failure mode was recorded as: concrete slab compressive failure under the steel tube and concrete tensile splitting failure, where no failure occurred in the HST. Test results show that the square shape HST in filled via concrete strength 40 MPa carried the highest shear load value, showing three times more than the reference specimens. It also recorded less slip behavior, and less compressive failure mode in concrete underneath the square hollow connector in comparison with the circular and rectangular HST connectors in both concrete strengths. The rectangular HST shows a 20% higher shear resistance with a longer width in the load direction in comparison with that in the smaller dimension. The energy absorption capacity values showed 23% and 18% improvements with the square HST rather than a headed shear stud when embedded in concrete strengths of 25 MPa and 40 MPa, respectively. Moreover, an analytical method was proposed and predicts the shear resistance of the HST shear connectors with a standard deviation of 0.14 considering the shape and size of the connectors.

Influence of porosity and cement grade on concrete mechanical properties

Huang, Jiandong,Alyousef, Rayed,Suhatril, Meldi,Baharom, Shahrizan,Alabduljabbar, Hisham,Alaskar, Abdulaziz,Assilzadeh, Hamid Techno-Press 2020 Advances in concrete construction Vol.10 No.5

The given research focuses on examining the effect of relatively humidity (RH) and curing temperature on the hydrates as well as the porosity of calcium sulfoaluminate (CSA) cement pastes. Numerous tests, which consist of mercury intrusion porosimetry (MIP), thermosgravi metric (TG) and X-ray diffraction (XRD) were conducted. Various characterization techniques which include, scanning electron microscopy, Fourier transform microscopy along with X-ray diffraction evaluations were conducted on the samples to examine phase formation and crystallinity, morphology and microstructure along with bond formations and functional groups, respectively. During long-term study, the performance of concrete which consisted of limestone and flash-calcined was close to those from standard Portland cement concrete. Traditional classifications and methods of corrosion were widely used for the assessment of steel in concrete which may get employed to concrete which contains LC3 to recalibrate the range of polarization resistance for passitivity condition. For example, there is up to 79.5% and 146% respective flexural and compressive strengths. Moreover, they developed more advance electrical and thermo-mechanical performance with a substantial reduction in absorption of water of close to 400%. These advantages allow this research crucial to evaluate how these methods can be applied. Additionally, the research evaluates developed and more advanced cement preservation and repair techniques. The conclusion suggests concerted efforts by various stakeholders such as policy makers to enable low-carbon rates.

Techno-Economic Analysis of Grid-Connected Hybrid Renewable Energy System for Remote Areas Electrification Using Homer Pro

Ur Rashid Mamoon,Ullah Irshad,Mehran Muhammad,Baharom M. N. R.,Khan Faisal 대한전기학회 2022 Journal of Electrical Engineering & Technology Vol.17 No.2

Pakistan is facing a drastic scarcity of electricity for the last two decades. Most of the areas in Pakistan have no access to electricity especially in Balochistan where most of the population has no electricity and water supply. Concerning the electricity issues, this research study is investigated to design a technical and economical hybrid system for the remote areas of Balochistan. For this purpose, three remote sites have been selected named Gujar village in district Awaran, Plantak in Washuk, and Shahrak village in Kech of Balochistan. Proposed sites are analyzed to fi nd the potential of renewable energy i.e. Wind and solar in the targeted sites of Balochistan. The wind and solar potential data are taken from the PMD, NREL, and NASA websites. For the selected sites, three models have been designed in Homer Pro software by using diff erent component combinations. These components include a fuel cell, generator, batteries, hydrogen tank, electrolyzer, Wind and Solar modules, and Converters. These models are connected to the grid to sell back the excess energy to the grid through net metering. After simulation and optimization, the most feasible and economic solution is decided that is based on NPC, COE, initial cost, and operating cost.

Performance and combustion characteristics of a novel crank-rocker engine

Salah E. Mohammed,M. B. Baharom,A. Rashid A. Aziz 대한기계학회 2017 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.31 No.7

The performance and combustion characteristics of a novel internal combustion engine, called the crank-rocker, have been investigated experimentally. The engine specifications are gasoline-port injection, four-stroke, spark-ignition, and single-curved cylinder. The ignition timing was initially set at 8.6 0 CA BTDC, 1800 rpm based on a small conventional engine. The equivalence ratio, lambda (λ) was varied at rich, stoichiometric, and lean conditions. The entire tests were performed at six different engine speeds of 1800, 2000, 2200, 2400, 2600 and 2800 rpm, with each one operating at wide open throttle. The performance data such as indicated torque, indicated power, indicated specific fuel consumption, and indicated thermal efficiency were calculated. The combustion characteristics such as cylinder pressure, mass fraction burned, heat release rate, P-V diagram, and indicated mean effective pressure were also determined. The results obtained from the crank-rocker engine were compared with the experimental results obtained from the conventional engine (benchmark engine). The results showed that the indicated torque, power and thermal efficiency of crank-rocker engine is higher than normal slidercrank engine. The indicated torque and power increased by about 6.28 %, while the indicated specific fuel consumption is lower by 4.69 %. In general, the engine has similar indicated performance characteristics to the conventional engine, but the combustion characteristics differ because the peak values of the combustion pressure and heat release occur at higher crank angle ATDC. This was found to be due to the dwelling of piston at TDC. The combustion rate and mixture of the novel crank-rocker engine burned faster, resulting in shorter combustion duration and ignition delay period than the conventional slider-crank engine.

Experimental and Electromagnetic Field Approach for the Development of Modifed Building Protection System

Irshad Ullah,M. N. R. Baharom,H. Ahmad,B. Das,H. M. Luqman,Jawad Ali,Zainab Zainal 대한전기학회 2020 Journal of Electrical Engineering & Technology Vol.15 No.1

During the lightning activities every air terminal has the equal chances to be hit by the lightning fashes and it produce electric feld in the surrounding. Therefore, with the passage of time when the lightning air terminals become aged due to acidic rain and chemical contamination, lightning air terminal (LAT) bypasses on side edges takes place which has not been given much attention by the researchers. A modifed lightning protection system (LPS) was proposed in this paper using experimental and electromagnetic feld approach. One of the LAT on diferent geometrical structure was selected as sacrifcial point in order to reduce the chances of LAT bypasses. The modifed protection system can be referred by diferent standard to make sure buildings protection. All the experimental work was done using high voltage impulse and ANSYS/MAXWELL was used as a simulation tool. The modifed protection technique will help diferent standards to provide comprehensive protective measures against lightning.

Vibration response of FG-CNT-reinforced plates covered by magnetic layer utilizing numerical solution

Yan Cao,Farayi Musharavati,Shahrizan Baharom,Pouyan Talebizadehsardari,Tamer A. Sebaey,Arameh Eyvazian,Azlan Mohd Zain 국제구조공학회 2020 Steel and Composite Structures, An International J Vol.37 No.2

Vibration response in a sandwich plate with a nanocompiste core covered by magnetic layer is presented. The core is armed by functionalyy graded-carbon nanotubes (FG-CNTs) where the Mori-Tanaka law is utilized assuming agglomeration effects. The structure plate is located on elastic medium simulated by Pasternak model. The governing equations are derived based on Mindlin theory and Hamilton’s principle. Utilizing diffrential quadrature method (DQM), the frequency of the structure is calculated and the effects of magnetic layer, volume percent and agglomeration of CNTs, elastic medium and geometrical parameters of structure are shown on the frequency of system. Results indicate that with considering magnetic layer, the frequency of structure is increased.

Economic application of structural health monitoring and internet of things in efficiency of building information modeling

Yan Cao,Sepideh Miraba,Shervin Rafiei,Aria Ghabussi,Fateme Bokaei,Shahrizan Baharom,Pedram Haramipour,Hamid Assilzadeh 국제구조공학회 2020 Smart Structures and Systems, An International Jou Vol.26 No.5

One of the powerful data management tools is Building Information Modeling (BIM) which operates through obtaining, recalling, sharing, sorting and sorting data and supplying a digital environment of them. Employing SHM, a BIM in monitoring systems, would be an efficient method to address their data management problems and consequently optimize the economic aspects of buildings. The recording of SHM data is an effective way for engineers, facility managers and owners which make the BIM dynamic through the provision of updated information regarding the occurring state and health of different sections of the building. On the other hand, digital transformation is a continuous challenge in construction. In a cloud-based BIM platform, environmental and localization data are integrated which shape the Internet-of-Things (IoT) method. In order to improve work productivity, living comfort, and entertainment, the IoT has been growingly utilized in several products (such as wearables, smart homes). However, investigations confronting the integration of these two technologies (BIM and IoT) remain inadequate and solely focus upon the automatic transmission of sensor information to BIM models. Therefore, in this composition, the use of BIM based on SHM and IOT is reviewed and the economic application is considered.