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Now showing items 31-40 of 83
New code structure for spectral amplitude coding in OCDMA system
(The Institute of Electronics, Information and Communication Engineers, 2007)
A new code structure for spectral amplitude coding optical code division multiple access system, based on Double Weight (DW) code families is proposed. The DW code has a, fixed weight of two. Modified Double Weight (MDW) ...
Performance of OCDMA systems using a complementary subtraction technique
(Optical Society of America, 2007)
What we believe to be a new code structure to reduce the multiple access interference in a spectral amplitude coding optical code-division multiple access system based on double-weight code families is proposed. Enhanced ...
Tilt detection of connectors using phase shifting
(International Association of Science and Technology for Development (IASTED)/ACTA Press, 2007)
AVI's are playing important roles in quality inspection in the electronic industry. Most existing AVIs are single overhead camera and are incapable detecting 3D defects. This work presents solving the shortcoming stated ...
Fine needle aspiration cytology evaluation for classifying breast cancer using artificial neural network
(Science Publications, 2007)
Thirteen cytology of fine needle aspiration image (i.e. cellularity, background information, cohesiveness, significant stromal component, clump thickness, nuclear membrane, bare nuclei, normal nuclei, mitosis, nucleus ...
Changes in biologically-active ultraviolet radiation reaching the Earth's surface
(The Royal Society of Chemistry & Owner Societies, 2007)
The Montreal Protocol is working. Concentrations of major ozone-depleting substances in the atmosphere are now decreasing, and the decline in total column amounts seen in the 1980s and 1990s at mid-latitudes has not ...
Removal of chromium (VI) from aqueous solution using treated oil palm fibre
(Elsevier B.V, 2007-07-17)
This study proposed an oil palm by-product as a low-cost adsorbent for the removal of hexavalent chromium [Cr (VI)] from aqueous solution. Adsorption of Cr (VI) by sulphuric acid and heat-treated oil palm fibre was conducted ...
Nano patterning of cone dots and nano constrictions of negative e-beam resist for single electron transistor fabrication
(Springer New York, 2007-12)
We present an optimization of nano dot of negative tone e-beam resist which is a very important step in single electron transistor fabrication process. The optimum design of dot and nano constriction plays a significant ...
Fast transient thermal analysis of Fourier and non-Fourier heat conduction
(Elsevier Ltd., 2007-10)
In this paper, asymptotic waveform evaluation (AWE) has been successfully used for fast transient characterization of Fourier and non-Fourier heat conduction. The Fourier and non-Fourier equations are reduced to a system ...
The effects of varying target hardness on ricochet angle
(American Institute of Physics, 2007-05-09)
This project is a study on ricochet characteristics off wooden targets when fired upon by 22 calibre bolt action rifle. A series of experimental testing has been carried out on three different woods chosen to give range ...
Colour contrast enhancement based on bright and dark stretching for Ziehl-Neelsen slide images
(Institute of Electrical and Electronics Engineering (IEEE), 2007-11)
The Ziehl-Neelsen stain, also known as the acid-fast stain, was first described by two German doctors; Franz Ziehl (1859 to 1926), a bacteriologist and Friedrich Neelsen (1854 to 1894), a pathologist [1].It is a special ...