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Now showing items 141-146 of 146
Effect of Mg, Si and Cu content on the microstructure of dilute 6000 series aluminium alloys
(Elsevier B.V., 2011-09-01)
The effect of Mg, Si and Cu content on the microstructural development during ageing treatment of dilute 6000 series alloys have been investigated using transmission electron microscopy (TEM). Four dilute alloys were used ...
Setup and results of pyramidal microwave absorbers using rice husks
(EMW Publishing, 2011)
Agricultural wastes are considered not useful and are commonly dumped or burned after crop harvesting. Rice husks from paddy (Oryza sativa) are example of agricultural wastes. Rice husks have been investigated as the ...
Review on fly ash-based geopolymer concrete without Portland Cement
(Academic Journals, 2011-01)
The consumption of Ordinary Portland Cement (OPC) caused pollution to the environment due to the
emission of CO2. As such, alternative material had been introduced to replace OPC in the concrete. Fly
ash is a by-product ...
Rubber tire dust-rice husk pyramidal microwave absorber
(EMW Publishing, 2011)
Rubber tire dust-rice husk is an innovation in improving the design of pyramidal microwave absorbers to be used in radio frequency (RF) anechoic chambers. An RF anechoic chamber is a shielded room covered with absorbers ...
Mechanical properties of nanosilica/polypropylene composites under dynamic compression loading
(Society of Plastics Engineers, 2011-04)
This article presents results on the dynamic mechanical properties of PP-SiO2 nanocomposites, with nanosilica contents of 1, 3, and 5% by weight, at various strain rates using a Split Hopkinson Pressure Bar (SHPB) apparatus. ...
Multi-antenna mobile terminal diversity performance in proximity to human hands under different propagation environment conditions
(The Institution of Engineering and Technology, 2011-10-27)
The effective diversity gain (EDG) of a four-element planar inverted-F antenna array, which operates at 3500MHz in the proximity to one hand in data-mode grip and two hands in browsing-mode grip, is predicted using a ...