Poulose Jacob,K; Shahana, T K; Sreela Sasi; Rekha, James K; Babita, Jose R(IEEE, December 12, 2008)
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Abstract:
The modern telecommunication industry demands higher capacity networks with high data rate. Orthogonal frequency division multiplexing (OFDM) is a promising technique for high data rate wireless communications at reasonable complexity in wireless channels. OFDM has been adopted for many types of wireless systems like wireless local area networks such as IEEE 802.11a, and digital audio/video broadcasting (DAB/DVB). The proposed research focuses on a concatenated coding scheme that improve the performance of OFDM based wireless communications. It uses a Redundant Residue Number System (RRNS) code as the outer code and a convolutional code as the inner code. The bit error rate (BER) performances of the proposed system under different channel conditions are investigated. These include the effect of additive white Gaussian noise (AWGN), multipath delay spread, peak power clipping and frame start synchronization error. The simulation results show that the proposed RRNS-Convolutional concatenated coding (RCCC) scheme provides significant improvement in the system performance by exploiting the inherent properties of RRNS.
Description:
Networks, 2008. ICON 2008. 16th IEEE International Conference on
Rani, Joseph(John Wiley & Sons. Inc, August 20, 1998)
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Abstract:
ABSTRACT: Rubber seed oil was used as a multipurpose ingredient in natural rubber
(NR) and styrene butadiene rubber (SBR) compounds. The study shows that the oil,
when substituted for conventional plasticiser, imparts excellent mechanical properties
to NR and SBR vulcanizates. Further, it also improves aging resistance, reduces cure
time, increases abrasion resistance and flex resistance, and reduces blooming.
Rani, Joseph(John Wiley & Sons, Inc., October 22, 1997)
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Abstract:
Rubber solutions were prepared and used for bonding wood pieces. The
effect of the variation of chlorinated natural rubber (CNR) and phenolformaldehyde
(PF) resin in the adhesive solutions on lap shear strength was determined. Natural
rubber and neoprene-based adhesive solutions were compared for their lap shear
strength. The storage stability of the adhesive prepared was determined. The change
in lap shear strength before and after being placed in cold water, hot water, acid,
and alkali was tested. The bonding character of these adhesives was compared with
different commercially available solution adhesives. The room-temperature aging
resistance of wood joints was also determined. In all the studies, the adhesive prepared
in the laboratory was found to be superior compared to the commercial adhesives.
Jose, K G; Dr.Sankaranarayanan, K C(Cochin University of Science and Technology, July 2, 1990)
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Abstract:
This study is an attempt to present an integrated picture of the economic changes that have taken place in the rural economy of Kerala. Its limited purpose is to draw the attention of researchers and policymakers to an important but neglected dimension in rural analysis and planning.The thesis aims to identify changes in income, employment-and population. and analyses the structural change in land ownership and other assets of the rural population. The thesis also studies the changes in agriculture, especially with reference to land use and cropping pattern and
examines the extend of rural indebtedness. These aspects are studied with reference to three
Panchayats - Thazhava, Pananchery, Muttil – which are taken as case studies.
Description:
Department of Applied Economics,Cochin University of science and Technology
Mohammed Yusuff, K K; Pearly Sebastian, Chittilappilly; Sridevi, N(Elsevier,Journal of Molecular Catalysis A: Chemical 286 (2008) 92–97, February 5, 2008)
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Abstract:
Zeolite Y-encapsulated ruthenium(III) complexes of Schiff bases derived from 3-hydroxyquinoxaline-2-carboxaldehyde and 1,2-
phenylenediamine, 2-aminophenol, or 2-aminobenzimidazole (RuYqpd, RuYqap and RuYqab, respectively) and the Schiff bases derived from
salicylaldehyde and 1,2-phenylenediamine, 2-aminophenol, or 2-aminobenzimidazole (RuYsalpd, RuYsalap and RuYsalab, respectively) have
been prepared and characterized. These complexes, except RuYqpd, catalyze catechol oxidation by H2O2 selectively to 1,2,4-trihydroxybenzene.
RuYqpd is inactive. A comparative study of the initial rates and percentage conversion of the reaction was done in all cases. Turn over frequency
of the catalysts was also calculated. The catalytic activity of the complexes is in the order RuYqap > RuYqab for quinoxaline-based complexes and
RuYsalap > RuYsalpd > RuYsalab for salicylidene-based complexes. The reaction is believed to proceed through the formation of a Ru(V) species.
Embedded systems, especially Wireless Sensor Nodes
are highly prone to Type Safety and Memory Safety issues.
Contiki, a prominent Operating System in the domain is even
more affected by the problem since it makes extensive use of
Type casts and Pointers. The work is an attempt to nullify the
possibility of Safety violations in Contiki. We use a powerful,
still efficient tool called Deputy to achieve this. We also try to
automate the process
Description:
2009 International Conference on Advances in Recent Technologies in Communication and Computing
Embedded systems, especially Wireless Sensor Nodes
are highly prone to Type Safety and Memory Safety issues.
Contiki, a prominent Operating System in the domain is even
more affected by the problem since it makes extensive use of
Type casts and Pointers. The work is an attempt to nullify the
possibility of Safety violations in Contiki. We use a powerful,
still efficient tool called Deputy to achieve this. We also try to
automate the process
Description:
2009 International Conference on Advances in Recent Technologies in Communication and Computing
Neema,C P; Dr.Babu, C A(Department of Atmospheric Science, 2004)
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Abstract:
This study deals with the salient features of the north Indian ocean associated with the summer monsoon. The focus is given on the Arabian sea mini warm pool, which is a part of the Indian ocean. It primarily study the certain aspects of the atmosphere and ocean variability in the north Indian ocean. The attempt were made to understand various aspects of time –scale variability of major features occurring in the Indian summer monsoon. The result from the thesis can be utilized as an input for model studies for prediction of monsoon, understanding ocean dynamics, radar tracking and ranging etc.
Neema,C P; Dr.Babu, C A(COCHIN UNIVERSITY OF SCIENCE AND TECHNOLOGY, 2004)
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Abstract:
This study deals with the salient features of the north Indian ocean associated with the summer monsoon. The focus is given on the Arabian sea mini warm pool, which is a part of the Indian ocean. It primarily study the certain aspects of the atmosphere and ocean variability in the north Indian ocean. The attempt were made to understand various aspects of time –scale variability of major features occurring in the Indian summer monsoon. The result from the thesis can be utilized as an input for model studies for prediction of monsoon, understanding ocean dynamics, radar tracking and ranging etc.
Alex Paikada,Mathew; Sivasankara Pillai,V N(School of rural development and appropriate technology: CUSAT Environmental studies, 2005)
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Abstract:
The study conducted on the salinity intrusion and seasonal water quality variations in the tidal canals of cochin. The main objectives are, salinity intrusion profile, water quality variation of the surface water of the canals,hierarchical utility of the water bodies and to understand the non-conservative components in the water body. The parameters monitored werepH,temperature,alkalinity,conductivity,DO(dissolvedoxygen),COD(chemical oxygen demand),BOD(biochemical oxygen demand0,chloride, total hardness, calcium hardness, dissolved phosphate, nitrate, total iron, sulphate, turbidity, total coliform and SUVA at 254nm. The tidal canals of GCDA were found to be creeks extending to the interior, canals inter connecting parts of the estuary or canals with seasonally broken segments. Based on utility the canals could be classified as: canals heavely polluted and very saline,canals polluted by urban waste , canals having fresh water for most part of the year and not much polluted, fresh water bodies heavily polluted.
During the rainy months carbon fixation by plankton is nonexistent,and during the dry months Chitrapuzha becomes a sink of phosphate. The study indicated abiotic subrouts for dissolved phosphate and revealed the potential pitfalls in LOICZ modeling exercise on sewage ladentidal canals. It was also found that all canals except for the canals of West cochin and chittoorpuzha have fresh water for some part of the year. The water quality index in the durable fresh water stretches was found to be of below average category.
Hatha, A A M; Thirupathi, Suresh; Doriaraj, Sreenivasan; Sangeetha, Sreenivasan; Lakshmanaperumalsamy, P(Microbes And Enviornments, October 13, 2004)
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Abstract:
The source of samonella cross contamination in 15 retail chicken outlets in aresidual area in coimbatore city ,sourthern India was studied. Chopping boards and the butchers hands were predominant followed by knives and the weighing balance tray. Serotyping of the salmonella strains revealed that all strains were salmonella enteritis, except one which was found to be salmonella cerro.The anti bacterial activity of commonly used spices were evaluated.
Sugunan, S; Benny, Thomas(Indian Journal of Chemistry, February , 1995)
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Abstract:
The Setschenow parameter and thermodynamic
parameters of transfer of 2- and 4- hydroxybenzoic acids
from water to salt solutions have been reported. The data
have been rationalised by considering the structure
breaking effects of the ions of the salts, the localized
hydrolysis model, the internal pressure theory and the
theory of water structure due to Symons.
The Setschenow parameter and thermodynamic parameters of transfer of 2-, 3-, and 4-methylbenzoic acids
from water to salt solutions have been reported. The data have been rationalized by considering the structure breaking
effects of the ions of the salts, the localized hydrolysis model, and the internal pressure theory.
Sugunan, S; Benny, Thomas(Journal of Solution Chemistry, 1994)
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Abstract:
The Setschenow parameter and thermodynamic parameters of transfer of
2-, 3- and 4-fluorobenzoic acid from water to salt solution are reported.
The data have been rationalized by considering the structure breaking effects of the ions of the salts, the localized hydrolysis model and the internal
pressure theory.