Browsing IEM Journal by Title

Now showing items 131-150 of 310

    • Hazard rating of substances systems developed by NIOSH's RTECS-NOHS and USEPA 

      Law, Puong Ling, Dr.; Ellenbecker, Michael J.; Ng, Chee Khoon, Ir. (The Institution of Engineers, Malaysia, 2006-03)
      This research study attempts to evaluate the hazard rating of substances systems developed by NIOSH’s (National Institute for Occupational Safety and Health) RTECS-NOHS (Registry of Toxic Effects of Chemical Substances – ...

    • Hazards analysis of LPG storage installation in Universiti Putra Malaysia: A preliminary study 

      Mohanad, El-Harbawi; Sa’ari, M.; Choong, Thomas Shean Yaw, Assoc. Prof. Dr.; Chuah, T. G.; Abdul Rashid, M. S. (The Institution of Engineers, Malaysia, 2004-03)
      A preliminary risk analysis on the impact of LPG storage explosion to the community in the Faculty of Engineering, Universiti Putra Malaysia (UPM) is studied. This paper is aimed to evaluate the physical effects of the ...

    • Heterogeneous esterification of free fatty acid to biodiesel 

      Siti Eda Eliana, Misi; Wan Nor Nadyaini, Wan Omar; NorAishah, Saidina Amin, Prof. Dr. (The Institution of Engineers, Malaysia, 2010-09)
      The potential of sulphated zirconia (SZ) as heterogeneous acid catalyst for esterification of free fatty acid (FFA) to biodiesel has been investigated. Experiments using oleic acid as a model compound preceded the ...

    • High-speed schlieren imaging and post-processing for investigation of flame propagation within droplet-vapour-air fuel mixtures 

      Shaharin Anwar, Sulaiman; Malcolm, Lawes (The Institution of Engineers, Malaysia, 2008-03)
      Studies in practical spray combustion systems are complex due to the presence of various dependent parameters such as turbulence and inhomogeneity of physical properties of the reactants. Therefore, fundamental aerosol ...

    • Highly reactive electrogenerated zinc: Preparation and its use in cross-coupling reactions 

      Aishah, Abdul Jalil; Sugeng, Triwahyono; Nobuhito, Kurono; Shingo, Takasugi; Masao, Tokuda (The Institution of Engineers, Malaysia, 2005-03)
      Highly reactive zinc metal was prepared by electrolysis of a N,N-dimethylformamide (DMF) solution containing naphthalene and a supporting electrolyte in a one-compartment cell fitted with a platinum cathode and a zinc ...

    • A hybrid active power filter connected to aphotovoltaic array 

      Zainal, Salam, Dr.; Tan, Perng Cheng; Awang, Jusoh (The Institution of Engineers, Malaysia, 2008-03)
      This paper presents a single-phase two-wire hybrid active power filter (APF) that is connected to photovoltaic (PV) array. The uniqueness of proposed scheme is the fact that it the combines the conventional APF with high-pass ...

    • Hybrid input shaping and PID control of a flexible robot manipulator 

      Mohd Ashraf, Ahmad; Zahar, Mohamed; Z. H., Ismail (The Institution of Engineers, Malaysia, 2009-09)
      This paper presents experimental investigations into the development of hybrid input shaping and PID control for vibration suppression and input tracking of a flexible robot manipulator. Initially, a PID controller is ...

    • IGBT induction hardening and its application in Singapore 

      Loh, Nee Lam, Dr.; Siew, Leong Wai; Loh, Yew Minh (The Institution of Engineers, Malaysia, 2010-06)
      Induction hardening has come a long way. Whilst the vacuum tube power supply is still commonly used in industries, IGBT power supply is fast gaining industrial acceptance. In terms of power efficiency, the IGBT technology ...

    • Image visualisation and classification of MODIS/ASTER Airborne Simulator (MASTER) remotely sensed data for agricultural area 

      Teoh, Chin Chuang, Dr.; Shattri, Mansor; Abdul Rashid, Mohamed Shariff; Noordin, Ahmad (The Institution of Engineers, Malaysia, 2006-12)
      A Best Band Selection Index (BBSI) algorithm to select the best band combination for image visualization and classification of high spectral resolution remotely sensed dataset was introduced in this paper. The BBSI is ...

    • Impact of commercial pectolytic enzymes on selected properties of white dragon fruit juice 

      Nur ‘Alia, A. R.; Siti Mazlina, Mustapha Kamal; Taip, F. S. (The Institution of Engineers, Malaysia, 2010-12)
      The aim of this work was to observe the effects of commercial enzymes i.e. Pectinex Ultra SP-L and Pectinex CLEAR on the chemical composition, vitamin C and total polyphenols contents of white dragon fruit (Hylocereus ...

    • The impact of direct lightning strike damages on PV modules in a large Malaysian PV farm 

      Chew, Thum Peng; Xian, Sean Lee Xi (The Institution of Engineers, Malaysia (IEM), 2021)
      Many lightning risk analyses avoided considering the role of the PV Module’s aluminium frame as a natural lightning air termination system or if such a role is considered, assumed that the ‘thin’ aluminium frame, would not ...

    • Implementation issues of adaptive OFDM in mobile radio environment 

      Nor K., Noordin; Borhanuddin, Mohd Ali; Hadi, Habaebi (The Institution of Engineers, Malaysia, 2004-09)
      A review of adaptive modulation with other related issues as part of link adaptation in an OFDM system is presented. Issues such as channel estimation, channel coding, Multiple Input and Multiple Output (MIMO) system are ...

    • Improved prediction of pre-camber of post-tensioned prestressed i-beam 

      Wahid, Omar, Assoc. Prof. Dr.; Tan, Pui Lai; Lee, Poh Hua; Roslina, Omar (The Institution of Engineers, Malaysia, 2008-03)
      An improved method of calculating pre-camber prediction in prestressed concrete beam is presented. It has been found that the current method of estimation that is widely practiced by local engineers which is based on BS ...

    • An improvement to the performance measurement system of the logistics operation 

      Khairur Rijal, Jamaludin; Hayati @ Habibah, Abdul Talib; Tan, Chiaw Hooi (The Institution of Engineers, Malaysia, 2007-06)
      Performance measurement is critical to the success of any organisation because it creates awareness to the competition between members in the organisation. Logistics and supply chain management has become common practices ...

    • Improving creativity in engineering undergraduate students in private institution of higher learning in Malaysia - a pilot study 

      Long, Chua Yaw; Balakrishnan, Balamuralithara; Yan, Koh Yit; Chiet, Chai Voon (The Institution of Engineers, Malaysia (IEM), 2020)
      Creativity is an essential factor when it comes down to engineering designs. Creativity and engineering complement each other to provide useful and yet eye-opening solutions to anyone’s every-day problems. Recent research ...

    • Infilling streamflow data using HEC-HMS 

      Hong, Kee An; Hong, Jer Lang; Izihan, Ibrahim; Nur Wajihah, Abd. Hakim (The Institution of Engineers, Malaysia (IEM), 2020)
      A set of quality control streamflow data is always required in the planning, design and management of water resources projects. Although every effort has been made by the authority in the collection of complete and continuous ...

    • Influence of environmental factors on job satisfaction in Malaysian automotive industries 

      S. Z., Dawal; Z., Taha; Z., Ismail (The Institution of Engineers, Malaysia, 2008-09)
      A relationship between selected environmental factors and job satisfaction was developed for employees in the automotive industries in Malaysia. Methods in developing the relationship include questionnaire design, data ...

    • Inherent occupational health concept for chemical processes: A new perspective 

      Mimi Haryani, Hassim; Hurme, Markku, Dr. (The Institution of Engineers, Malaysia, 2010-09)
      The concept of inherent safety was known since the last few decades. The idea was quickly spread from the origin UK to the USA and later, to the other parts of the world. The idea was then extended to environment and ...

    • Innovation in engineering consultancy: A case for competitive advantage 

      Thum, Peng Chew (The Institution of Engineers, Malaysia, 2005-06)
      The internationalisation of the engineering consultancy services brings new challenges to its competitiveness. Service innovation is the way to enhance competitiveness. Although competitive innovation in the 1990s was ...

    • Integrated infrastructure systems for future-ready cities 

      Kwet Yew, Er. Yong, Professor (The Institution of Engineers, Malaysia (IEM), 2017-12)
      Cities are complex large-scale systems of which water and transport systems are as critical as the fragility of the aging urban centres. A Future-ready city would require a total review of the integration of residential, ...