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Now showing items 31-40 of 43
Hybrid input shaping and PID control of a flexible robot manipulator
(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 ...
Derivation of switching angles of the cascaded multilevel voltage source inverter subjected to a new pulse width modulation scheme
(The Institution of Engineers, Malaysia, 2009-09)
A new modulation scheme for a five-level cascaded multilevel inverter is proposed. Unlike other schemes, the proposed method is based on the symmetric regular sampling unipolar PWM with a single carrier and multiple ...
Large eddy simulation of the effect of hat fux on pollutant dispersion in an urban street canyon
(The Institution of Engineers, Malaysia, 2009-12)
The effect of heat flux on pollutant dispersion in an urban street canyon with fixed aspect ratio of 1 is investigated under four different heating configurations: windward heating, leeward heating, ground heating, and ...
Effect of ship size, forward speed and wave direction on relative wave height of container ships in rough seas
(The Institution of Engineers, Malaysia, 2009-09)
This paper deals with the numerical calculations of relative wave height of ships in the rough seas. Linear potential theory has been applied for describing fluid motion and 3-D sink-source technique has been used to ...
Synthesis of Tio2-Sio2 powder photocatalyst via sol-gel method: Effect of titanium precursor type on powder properties
(The Institution of Engineers, Malaysia, 2009-12)
TiO2-SiO2 powder photocatalysts with varied SiO2 portion were prepared through sol-gel technique using two types of metal alkoxides: titanium tetraisopropoxide (TPT) and titanium diisopropoxide (PTP). Tetraethoxysilane ...
Screening alternative chemical routes based on inherent chemical process properties data: Methyl methacrylate case study
(The Institution of Engineers, Malaysia, 2009-12)
In 1988 a campaign called Responsible Care was initiated as a response to the adverse publicity of the Bhopal disaster. The initiative commits chemical industries to improve safety, health, and environmental (SHE) performance. ...
Investigation of process yield in the transesterification of coconut oil with heterogeneous calcium oxide catalyst
(The Institution of Engineers, Malaysia, 2009-12)
The commercial success of biodiesels has to date been limited by high production costs of vegetable oil methyl esters. High feedstock costs are compounded by side reactions such as soap formation during conversion using ...
Essential quality practices in Indonesian manufacturing SMEs
(The Institution of Engineers, Malaysia, 2009-06)
The importance of quality practices has considerably increased over the last years, on both a practical and theoretical levels. In competitive and global business environment, companies should create a need for managers ...
Design and analysis of multi-cavity traditional and h-branching runners for plastic injection mold
(The Institution of Engineers, Malaysia, 2009-06)
This paper describes the design and analysis of plastic injection mold balancing runner. The runners were designed based on Ellis Model, a viscosity model of flow network consisting of elements and nodes. 4-coefficients ...
Assessment of the turbulence models for modelling of bubble column
(The Institution of Engineers, Malaysia, 2009-12)
This paper presents an Eulerian two-fluid modelling of the gas-liquid flow in a bubble column. The influence of the bubble size, turbulence models and the grid size on the gas hold-up and the axial liquid velocity were ...