IEM Journal: Recent submissions
Now showing items 261-280 of 310
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Flow effect due to geometrical characteristics of pressure-swirl GDI atomizers
(The Institution of Engineers, Malaysia, 2007-09)Gasoline direct injection requires atomisers that are able to comply with stringent requirements in terms of spray structure and mean droplet size. Internal geometrical characteristics of an atomizer play an important role ... -
Excusable and compensable delays in the construction of building project – A study in the states of Selangor and Wilayah Persekutuan Kuala Lumpur , Malaysia.
(The Institution of Engineers, Malaysia, 2007-12)This paper explores the most significant causes of excusable and compensable delays in the construction of building projects in the States of Selangor and Wilayah Persekutuan Kuala Lumpur , Malaysia. Data is collected from ... -
Effect of intra planar differential settlement analysis of boiler supporting structure - A case study
(The Institution of Engineers, Malaysia, 2007-06)In boiler supporting structure, heavy loads are transferred to the ground through several columns embedded in reinforced concrete foundation. The foundation gets settled due to various factors such as loads acting on the ... -
Rice irrigation scheduling incorporating stochastic rainfall
(The Institution of Engineers, Malaysia, 2004-09)An irrigation-scheduling program has been developed to increase irrigation efficiency in a large-scale rice irrigation project in Malaysia. The study focused on predicting daily irrigation deliveries for the main season ... -
Precision system for mapping terrain trafficability, tractor-implement performance and tillage quality
(The Institution of Engineers, Malaysia, 2006-12)A novel data acquisition and differential global positioning system had been integrated on–board a Massey Ferguson 3060 agricultural tractor for real-time mapping of terrain trafficability, tractor-implement performance, ... -
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 ... -
A study on interference of surface model footings resting on sand
(The Institution of Engineers, Malaysia, 2006-03)A model study has been conducted on the effect of interference of footings on bearing capacity and settlement of surface square, circular and strip footings resting on sand. One footing was loaded to its safe bearing ... -
Effect of sonication for in-situ stainless steel leaf filtration
(The Institution of Engineers, Malaysia, 2006-03)The application of ultrasound wave fields in the filtration and separation technology has been identified as a new and clean technology and as an alternative to the classical cleaning processes. Fouling phenomena is a ... -
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 ... -
Evaluation on empirical models for the prediction of cyclone efficiency
(The Institution of Engineers, Malaysia, 2006-09)A numerical simulation on cyclone collection efficiency is presented. The simulations deal with tangential inlet cyclones with relatively low solids loading (<10 g/m3) and for cyclone diameter from 0.01 to 3 m. The ... -
Employing a failure criterion with interaction terms to simulate the progressive failure of carbon-epoxy laminates
(The Institution of Engineers, Malaysia, 2005-06)A failure criterion with the existence of coupling terms is employed to investigate the progressive failure in anisotropic laminated carbon-epoxy plates. The criterion is employed because it is developed recently. Moreover, ... -
Application of decoupling networks in deadbeat controller for high-frequency link inverter
(The Institution of Engineers, Malaysia, 2006-09)Deadbeat is a control method that results in very fast dynamic response. However its application in power electronics converters is somewhat hindered because it is very sensitive towards parameter variations. In an attempt ... -
Standardisation of partial strength connections of flush end-plate connections for Trapezoid Web Profiled steel sections
(The Institution of Engineers, Malaysia, 2006-06)Connections are usually designed as pinned or rigid although the actual behaviour is known to fall between these two extreme cases. The use of partial strength or semi-rigid connections has been encouraged by codes. Studies ... -
Dynamic response of slender/thin reinforced precast concrete walls using shaking table
(The Institution of Engineers, Malaysia, 2006-09)Two geometrically identical three-eight full scale of thin/slender precast wall panels constructed with different base block connections are tested under several earthquake excitations using shaking table. Specimen 1 is ... -
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 – ... -
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 ... -
Drying of kenaf in a flat bed box dryer for animal feed
(The Institution of Engineers, Malaysia, 2006-12)Kenaf drying tests were carried out using the 2.44x2.44x0.91 m flat bed box dryer with the triangular section canopy cover on top. The drying curves obtained were z-shape with very little drop in moisture content during ... -
Modelling of bread dough aeration during mixing: Experimental investigations using scale-up mixers
(The Institution of Engineers, Malaysia, 2006-12)Aeration of bread dough during mixing in three scales of Tweedy-type mixers was studied using a model, which defines the entrainment and disentrainment coefficients. The model describes dough aeration as a dynamic balance ... -
Experimental robotics system in laboratory for agriculture application
(The Institution of Engineers, Malaysia, 2006-12)In centuries past, humanity’s destiny in agriculture was depended fully on weather, irrigation and soil, but nowadays, with the sophisticated and highly technologies, the ability for humans and machines to cooperate as ... -
Effect of material properties on ductility of reinforced concrete beams
(The Institution of Engineers, Malaysia, 2006-09)Reinforced concrete (RC) is one of the most important building materials and is widely used in civil engineering structures. The constituents of reinforced concrete such as concrete and steel are very complex due to their ...