Browsing IEM Journal by Issue Date
Now showing items 41-60 of 310
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Menu driven intelligent tutoring for power system modeling
(The Institution of Engineers, Malaysia, 2005-09)The Graphical User Interface (GUI) provides the user with interactive visual communication to analyse and model the power systems. Applying the advantages of the GUI, new menu driven intelligent tutoring system was ... -
Analysis and design of jobs for control of cumulative trauma disorders: Plastic forks/spoons packing job
(The Institution of Engineers, Malaysia, 2005-09)Cumulative trauma disorders caused by repetitive hand and arm movements were studied in this paper for a plastic forks/spoons packing job. The job was categorised into several work elements associated with the trunk, hand ... -
Modeling of viscous flows in two-dimensional turbomachinery cascade via viscous-inviscid interaction method
(The Institution of Engineers, Malaysia, 2005-09)A two-dimensional time-accurate time-marching viscous flow solver employing the viscous-inviscid interaction method suitable for turbomachinery applications is described. The inviscid main flow solver uses the second-order ... -
Parameter estimation of tapioca starch hydrolysis process: Application of least squares and genetic algorithm
(The Institution of Engineers, Malaysia, 2005-12)The performance of genetic algorithm (GA) in nonlinear kinetic parameter estimation of tapioca starch hydrolysis was studied and compared with the Gauss-Newton method. Both methods were employed for determining the model ... -
Modeling cad performance with Fuzzy Cognitive Map
(The Institution of Engineers, Malaysia, 2005-12)This paper demonstrates how Fuzzy Cognitive Map (FCM) is used to model CAD performance in an engineering consultancy environment by simulating the effects of certain conditions and actions on CAD service quality. A knowledge ... -
Aerodynamic performance of a remotely piloted vehicle
(The Institution of Engineers, Malaysia, 2005-12)An experimental investigation and computer simulation have been made to obtain the aerodynamic characteristics of a remotely piloted vehicle (RPV), USM eFA-1. In the present study, the aerodynamic investigations are carried ... -
Development status of indigenous computational fluid dynamics software for arbitrary complex geometry
(The Institution of Engineers, Malaysia, 2005-12)This paper describes the development status of an indigenous Computational Fluid Dynamics (CFD) software (FLOWSIM) capable of handling complex geometry. It addresses the development of the pre-processor, post-processor ... -
Daily streamflow forecasting using simplified rule-based fuzzy logic system
(The Institution of Engineers, Malaysia, 2005-12)In this study, a simplified fuzzy logic system with uniform partitions in the input space is proposed for forecasting the daily streamflow of four river systems in Malaysia. The proposed simplified fuzzy logic system was ... -
Drag reduction in aircraft model using Elliptical winglet
(The Institution of Engineers, Malaysia, 2005-12)Aerodynamic characteristics for the aircraft model with NACA (National Advisory Committee for Aeronautics) wing No. 65- 3-218 have been studied using subsonic wind tunnel of 1000 mm x 1000 mm rectangular test section and ... -
Kajian perbandingan ram lengkung dan ram rata bagi pemusar udara aliran jejarian dalam mengurangkan emisi
(The Institution of Engineers, Malaysia, 2005-12)Enjin turbin gas digunakan secara meluas sama ada dalam bidang industri atau penerbangan. Kecekapan enjin merupakan salah satu kriteria dalam pemilihan enjin yang baik. Pembakar adalah antara komponen penting dalam enjin ... -
Studies on effect of temperature and concentration on thermophysical properties of Chokanan mango juice
(The Institution of Engineers, Malaysia, 2005-12)The thermophysical properties of mango (Mangifera indica L.) juice of the Chokanan variety at medium maturity as affected by temperature and concentration were studied. The thermophysical properties were determined at ... -
Development and validation of emission model for a petrol engine using response surface methodology (RSM)
(The Institution of Engineers, Malaysia, 2005-12)Hydrocarbon emissions are generated from the presence of unburned fuel in the exhaust of a petrol engine. Liquid fuels contain 10 to 20 major species of hydrocarbon and some 100 to 200 minor species. Most of these species ... -
Transfer function model of the rainfall-runoff relationship of a drained catchment
(The Institution of Engineers, Malaysia, 2005-12)Transfer function model of the rainfall and runoff relationship with various complexities was developed to investigate the hydrological dynamics of a catchment that undergoes continual drainage process. The structure of ... -
Estimation of platinum gauzes catalyst for ammonia oxidation in nitric acid production
(The Institution of Engineers, Malaysia, 2005-12)This paper illustrates design aspects of a shallow bed reactor involving a very rapid reaction, which is a diffusion controlled reaction. The design of the bed composed of a small number of catalyst screens, is normally ... -
Monitoring of pH and temperature effects in fermentation process of itaconic acid
(The Institution of Engineers, Malaysia, 2005-12)The environmental conditions such as temperature and pH have great impact on microbial growth kinetics and product formation during fermentation process. Temperature can be related to activation energy that affects the ... -
Isomerisation of cyclohexane to methylcyclopentane over Pt/SO4 2--ZrO2 catalyst
(The Institution of Engineers, Malaysia, 2006-03)Skeletal isomerisation of cyclohexane to methylcyclopentane over Pt/SO4 2--ZrO2 (PSZ) catalyst was studied in a closed recirculation reactor in the temperature range 413-503 K. In the presence of Pt and hydrogen, the ... -
Distributed model for changes in river peak flow due to land development
(The Institution of Engineers, Malaysia, 2006-03)Land development for new townships, agriculture or recreational areas is almost always accompanied by environmental problems. Some of these are soil erosion, soil fertility degradation, river sedimentation and sometimes ... -
System analysis of efficient production processes for productivity enhancement through productivity balance in injection moulding process
(The Institution of Engineers, Malaysia, 2006-03)The purpose of this paper is to present a study of mathematical model of system analysis of efficient production processes. Its objective is to perform productivity balance calculation based on data obtained from injection ... -
Systematic design of amaximum water recovery network for an urban system based on Pinch Analysis
(The Institution of Engineers, Malaysia, 2006-03)Pinch Analysis has been an established systematic technique for optimal design and retrofit of heat, mass and water recovery networks in industry to achieve maximum energy as well as mass efficiency. Until today, the ... -
Hazard rating of substances systems developed by NIOSH's RTECS-NOHS and USEPA
(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 – ...