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Now showing items 561-570 of 594
A study on the effect of boric acid mixture as solid lubricant towards machining processes
(Praise Worthy Prize, 2012-11)
Increasing awareness for 'green manufacturing' globally and consumer focus on environment friendly products has put major concerns on industries to minimize the use of cutting fluids. In this research, dry machining, ...
Properties of concrete containing rice husk ash under sodium chloride subjected to wetting and drying
(Elsevier B.V., 2012)
In this study, the influences of different replacement levels of RHA blended cement concrete subjected to 5% NaCl solution with drying-wetting cycles was evaluated. For parametric study, RHA was used as a Portland cement ...
Repeated positioning of a pneumatic cylinder with enhancing use of proximity switches
(Fuji Technology Press Ltd., 2012-09)
This paper introduces a technique employing repeated intermediate positionings, which are controlled by sequential on-off actions of solenoid valves, of a pneumatic cylinder. The motion of the piston slider is detected by ...
Computational fluid dynamics investigation on the use of heat shields for thermal management in a car underhood
(Universiti Malaysia Pahang, 2012-07)
Temperature variations inside a car underhood are largely controlled by the heat originating from the engine block and the exhaust manifold. Excessive temperatures in the underhood can lead to the faster deterioration of ...
Implementation of PID controller tuning using differential evolution and genetic algorithms
(ICIC International, 2012)
This paper presents the implementation of PID controller tuning using two modern heuristic techniques which are differential evolution (DE) and genetic algorithm (GA). The optimal PID control parameters are applied for a ...
The correlation between surface finish in milling process involving solid lubricant
(Praise Worthy Prize, 2012-09)
Nowadays solid lubricant assisted machining had now become a new tendency, it seems to play its potential implementation to replace previously applied conventional coolant fluid assisted machining. However, the application ...
Catalytic dehydrogenation of methylcyclohexane (MCH) to toluene in a palladium/alumina hollow fibre membrane reactor
(Malaysian Technical Universities Network (MTUN), 2012-11-20)
A compact multifunctional Pd/alumina hollow fibre membrane reactor (HFMR) has been developed and used for the catalytic dehydrogenation of methylcyclohexane to toluene. The developed HFMR consists of a thin and defect-free ...
Evaluation on the hardness and microstructures of T91 reheater tubes after post-weld heat treatment
(Elsevier Ltd., 2012-12)
Reheater and superheater tubes are vulnerable to high temperature upset condition, undergoing severe creep deformation or even final rupture. In general, boiler tubes in power plants have finite life because of prolonged ...
Underwater femtosecond laser micromachining of thin nitinol tubes for medical coronary stent manufacture
(Springer-Verlag, 2012-06)
Microprofiling of medical coronary stents has been dominated by the use of Nd:YAG lasers with pulse lengths in the range of a few milliseconds, and material removal is based on the melt ejection with a high-pressure gas. ...
PID controller tuning using evolutionary algorithms
(World Scientific and Engineering Academy and Society (WSEAS), 2012)
This paper presents the implementation of PID controller tuning using two sets of evolutionary techniques which are differential evolution (DE) and genetic algorithm (GA). The optimal PID control parameters are applied for ...