Browsing Faculty Research Publications by Title
Now showing items 2085-2104 of 2106
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Wall effect in laminar flow of non-Newtonian fluid through a packed bed
(2000)Experiments were conducted on laminar flow of non-Newtonian fluid through a packed bed of low column to packing particle diameter ratio (3.8) to elucidate the wall effect on pressure drop and mass flux. Carboxy methyl ... -
Waveguide polarizer based on resonant tunneling
(1991)A novel and highly efficient waveguide polarizer which is based on the phenomenon of resonant tunneling is proposed. Designs for both transverse-electric (TE) and transverse-magnetic (TM) pass polarizers based on this ... -
Wavelength division multiplexing of phase modulated solitons
(1992)The simultaneous propagation of N phase modulated bright solitons at N different wavelengths in a single mode optical fiber is considered. The conditions necessary for such wavelength multiplexed operation in a lossless ... -
Wavelength-division multiplexing isolation filter using concatenated chirped long period gratings
(2001)We propose the use of concatenated chirped long period gratings as an efficient wavelength-division multiplexing (WDM) isolation filter. The proposed filter not only works in the transmission mode but also has almost ... -
Wavelet filtering applied to time-average digital speckle pattern interferometry fringes
(2001)In this paper we are presenting a filtering scheme using Symlet wavelet to remove the speckle noise from the time-averaged digital speckle pattern interferometry fringes. To demonstrate the potential of Symlet wavelet ... -
Wear data analysis of friction materials to investigate the simultaneous influence of operating parameters and compositions
(2004)The present paper deals with the wear data analysis of friction composites where, the nature and the concentration of the abrasives were varied systematically in steps of 2%. The abrasives selected were; SiC, SiO2, ZrO2 ... -
Wear of cryo-treated engineering polymers and composites
(1999)Polymers and composites are extensively used in wear situations dominated by various types of abrasive mechanisms. Incorporation of,heat treatment and surface engineering by various chemical and physical techniques have ... -
Weathering effects on the strength and deformational behaviour of crystalline rocks under uniaxial compression state
(2000)Uniaxial compression tests were performed on different categories of weathering of three lithological units:Malanjkhand granite; Nagpur basalt; and Delhi quartzite, occurring in central and northern parts of India. The ... -
Wide angle and bi-directional beam propagation using the collocation method for the non-paraxial wave equation
(2003)A method, based on the collocation method, for wide angle and bi-directional propagation of non-paraxial waves is presented. The second-order wave equation is converted to a matrix ordinary differential equation, which is ... -
Wind and wave induced behaviour of offshore guyed tower plateforms
(1998)Offshore guyed tower plateforms belong to the group of complaint offshore plateforms which are most suited for deep water exploration.The basic feature of complaint offshore plateforms is that they are design to move with ... -
Wind induced heat losses from outer cover of solar collectors
(1997)The top cover of a fiat plate solar collector is generally exposed to wind. In indoor experiments it is necessary to simulate this wind. Correlations have been developed for the wind heat transfer coefficient over flat ... -
Wind turbine driven self-excited induction generator
(1993)Owing to increased emphasis on renewable resources, the development of suitable isolated power generators driven by energy sources such as wind, small hydro-electric, biogas, etc. have recently assumed greater significance. ... -
Workspace and dexterity analyses of hexaslide machine tools
(2003)This paper presents kinematic analysis of a class of parallel manipulators, namely, Hexaslides, for machine tool applications. Hexaslides have constant-length legs. The inverse and direct kinematics solutions, to study the ... -
Xanthan Biosynthesis in Continuous Culture: Citric Acid
(1995)Role of citric acid on the biosynthesis of xanthan was studied in continuous culture. Increased citric acid consumption resulted in an increase in ATP production by cells which was used in the synthesis of xanthan. Mass ... -
Xylanase production by a hyperxylanolytic mutant of Fusarium oxysporum
(1995)Mutagensis of Fusarium Oxysporum DSM 841 Enhanced the activity of xyclanase and Beta-xylanace enzymes by more than threefold. Wild-Strain spores were subjected to UV orN-methyl-N'-nitro-N-nitrosoguanidine Treatments. The ... -
Zone center frequencies of tetragonal CdAl2Se4
(2000)A short-range force constant and a modified rigid ion model have been applied for the first time to investigate the phonons in the CdAl2Se4 defect chalcopyrite compound in its tetragonal phase. The calculation with one ... -
Zone center phonon frequencies in tetragonal zirconia: lattice dynamical study and new assignment proposition
(2001)A normal mode calculation of the zone center phonons in the tetragonal structure of ZrO2 compound has been performed with particular emphasis on the low frequency modes. A restricted set of stretching and bending force ... -
Zone center phonons of orthorhombic perovskite YAlO3
(1999)A short range force constant model has been applied to investigate the phonons in YAlO3 perovskite in the orthorhombic phase. The calculations with six stretching and one bending force constants provide a satisfactory ... -
Zone center phonons of the orthorhombic trifluorides MF3 (M=Dy, Lu)
(2005)A short range force constant model has been applied for the first time to investigate the phonons in trifluorides MF3 (M=Dy, Lu) in their orthorhombic phase. The calculations with 14 stretching and bending force constants ...