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Now showing items 551-560 of 594
Linearity improvement of 5.2-GHz CMOS up-conversion mixer for wireless applications
(John Wiley & Sons, Inc., 2012-04)
This letter presents linearity improvement up-conversion mixer at 5.2 GHz for wireless applications. The design is based on Gilbert-cell active double-balanced mixer using derivative superposition method for linearity ...
Optimization of current total harmonic distortion on three-level transformerless photovoltaic inverter
(Elsevier Ltd., 2012)
This paper presents a new topology of three-level transformerless photovoltaic (PV) inverter. It consists of three main circuits; they are a pulse driver circuit, a full bridge inverter circuit and a power factor correction ...
Signal propagation analysis for low data rate wireless sensor network applications in sport grounds and on roads
(EMW Publishing, 2012)
This paper presents results of a study to characterise wire- less point-to-point channel for wireless sensor networks applications in sport hard court arenas, grass fields and on roads. Antenna height and orientation effects ...
Microstructure study on optimization of high strength fly ash based geopolymer
(Trans Tech Publications, 2012)
The compressive strength and microstructural characteristics of fly ash based geopolymer with alkaline activator solution were investigated. The sodium hydroxide and sodium silicate were mixed together to form an alkaline ...
Comparison between two types of computer for Industrial Ethernet performance
(Trans Tech Publications, 2012)
Ethernet is now the dominant networking in the home and office environment. Advanced of the network technology and convergence of communications, control and computer enabled the Networked Control System (NCS). Industrial ...
Dicing die attach film for 3D stacked die QFN packages
(IEEE Conference Publications, 2012)
The application of die attach film (DAF) in semiconductor packaging is become wider especially in three dimensional (3D) QFN stacked die package. As wafer getting thinner until beyond 100 μm, challenges in die attach process ...
Process improvement on manufacturing floor through PDCA methodology
(Praise Worthy Prize S.r.l., 2012-11)
Many organizations are struggling to improve customer-focused quality in today's highly competitive domestic and global markets. At the same time, these organizations have failed to implement the PDCA methodology into their ...
Bracket assembly tail failure: Identification of causes and proposal for design improvement
(Praise Worthy Prize, 2012-01)
This paper is aimed to identify and solve the problem faced by S. Y. Chong Foundry. A project has been assigned on this two wheel tractor. One of the problems has been found which is located on Rotavator Cover of Two Wheel ...
Picosecond laser micromachining of nitinol and platinum-iridium alloy for coronary stent applications
(Springer-Verlag, 2012-03)
The demand for micromachining of coronary stents by means of industrial lasers rises quickly for treating coronary artery diseases, which cause more than one million deaths each year. The most widely used types of laser ...
Design and development of a new vertical axis movable vane cavity wind turbine
(Praise Worthy Prize, 2012)
Wind Energy is one of the cleanest and reliable sources of renewable energy. Nowadays, wind energy generates about one percent of total energy used worldwide. The potential of wind energy is huge and the study shows if 20 ...