IEM Journal: Recent submissions
Now showing items 61-80 of 310
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Reinforced concrete strength at slab and column intersection
(The Institution of Engineers, Malaysia (IEM), 2017-12)This paper proposes a method modified from that as first suggested by Siao1 to determine the effect on column strength taking into consideration the effect of confinement by the surrounding slab. Previous test results2-4 ... -
Guided scrambling as a peak to average power ratio reduction technique for digital video broadcasting-terrestrial 2
(The Institution of Engineers, Malaysia (IEM), 2017-12)Analogue Broadcast Transmitters are being replaced by Digital Transmitters based on standards using Orthogonal Frequency Division Multiplex (OFDM). However, high Peak to Average Power Ratio (PAPR) is limiting the performance ... -
Integrated infrastructure systems for future-ready cities
(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, ... -
Integrating safety and health indexes in computer-aided molecular design under property prediction uncertainty
(The Institution of Engineers, Malaysia (IEM), 2017-06)Computer-Aided Molecular Design (CAMD) is a powerful tool for designing promising molecules with the targeted properties. Besides properties, the safety and health aspects must also be considered during design stage to ... -
Maximizing the impact of air bubbles for membrane fouling control in microalgae harvesting
(The Institution of Engineers, Malaysia (IEM), 2017-06)Harvesting microalgae using membrane is challenging due to the nature of microalgae having very high membrane fouling potential. Numerous techniques have been proposed for membrane fouling control, including optimizing ... -
Production and characterization of biopolyols from crude glycerol based liquefaction process
(The Institution of Engineers, Malaysia (IEM), 2017-06)The feasibility of using palm kernel cake and crude glycerol in liquefaction process to produce bio polyol was investigated in this study. The identiied parameters for liquefaction conditions were reaction temperature, ... -
Debottlenecking of the integrated biomass network with sustainability index in Malaysia
(The Institution of Engineers, Malaysia (IEM), 2017-06)The world has grown large interest towards the biomass industry but there are many challenges that forbid the commercialization of biomass conversion technologies. The underutilized biomass in Malaysia proves that optimisation ... -
Synergic effect and kinetic mechanisms for Co-Pyrolysis of empty fruit bunch and palm oil sludge
(The Institution of Engineers, Malaysia (IEM), 2017-06)The thermochemical behaviour of Co-Pyrolysis between Empty Fruit Bunches (EFB) and Palm Oil Mill Efluent (POME) sludge were studied using Thermogravimetric Analysis (TGA). EFB, POME sludge, and their blends (EFB : POME ... -
Removal of E.Coli and turbidity using riverbank filtration technique -RBF- for riverside alluvial soil in Malaysia
(The Institution of Engineers, Malaysia (IEM), 2016-06)Riverbank filtration (RBF) is an efficient and low-cost natural alternative filtration technology for water supply application. In this method, the surface water contaminants are removed or degraded as the infiltrating ... -
Soil-root withholding strength for river bank stability
(The Institution of Engineers, Malaysia (IEM), 2016-06)The ability of vegetation to stabilise soils is frequently employed in slope stabilisation projects including riverbank restoration activity. Soil block samples permeated with roots of Bermuda Grass commonly used for ... -
Estimating generalised flood sew ceofficients for penisular Malaysia
(The Institution of Engineers, Malaysia (IEM), 2016-06)Flood estimations based on fitting the frequency of occurrence of annual peak discharges using the Log-Pearson Type 3 distribution are commonly used but they are sensitive to the skew coefficients of the gauging stations. ... -
Seeking the code of the ground
(The Institution of Engineers, Malaysia (IEM), 2016-06)This paper explores three topics that constantly challenge geotechnical engineers: deformation, water and safety. More specifically, these topics involve understanding and predicting deformation, designing safely when water ... -
Effect of grinding on workability and strength of Penang rice husk ash blended concrete grade 30
(The Institution of Engineers, Malaysia (IEM), 2015-07)The practice of replacing with conditioned waste materials in construction is well known for conservation of natural resources. Ecological was damaged due to quarrying caused depletion of natural resources (limestone, iron ... -
Control of bifurcation behaviour of the buck converter via a resonant parametric perturbation circuit
(The Institution of Engineers, Malaysia (IEM), 2015-07)Nonlinear circuits and systems research has been growing very quickly over the past two decades. Actively pursued in almost every branch of science and engineering, nonlinear systems theory has found wide applications in ... -
Characteristics of optical silicone tactile sensor
(The Institution of Engineers, Malaysia (IEM), 2015-07)The main objective of this research work is to analyze the characteristics of a newly developed optical tactile sensor for sensing surface hardness. Many optical tactile sensors are bulky in size and lack of dexterity for ... -
Numerical simulation of the decay of grid-generated turbulence in a shock tube
(The Institution of Engineers, Malaysia (IEM), 2014-06)The decay of the grid-generated turbulence has been investigated numerically by solving the time-dependent threedimensional Navier-Stokes equations with k-e turbulence model for a compressible fluid. Turbulence grids are ... -
Novel bimetallic tin-manganese oxides-carbon nanotube nanocomposite and their charge storage properties
(The Institution of Engineers, Malaysia (IEM), 2014-06)The synthesis of CNTs/(Sn+Mn)Ox nanocomposites were first attempted through combining the hydro-oxidation of SnCl2 to SnO2 and the reduction of KMnO4 to MnO2 onto CNTs in this work. The reducing presence of SnCl2 accelerated ... -
Exploring the barriers and driving factors in implementing building Information Modelling (BIM) in the malaysian construction industry - a preliminary study
(The Institution of Engineers, Malaysia (IEM), 2014-06)In Malaysia, Building Information Modelling (BIM) has recently gained attraction from construction players and some of them have applied it to several projects. By utilising the BIM process, the construction players have ... -
Bifurcation behaviour of the buck converter
(The Institution of Engineers, Malaysia (IEM), 2014-06)The bifurcation and chaos phenomena appeared in power system have become a focus subject at present. It has become apparent about a decade ago that power converters exhibit various types of non-linear behaviour which ... -
Reactions of used motor oil and residual oil using mesoporous MoAI₂O₃ catalyst
(The Institution of Engineers, Malaysia (IEM), 2013-06)In the present study, mesoporous Mo-based catalysts of different pore size ranges were synthesized and investigated for its hydrocracking activity. Catalyst pore size has been considered a property affecting the_mass ...