Kannan, Balakrishnan; Anil, Kumar; Sindhumol, S(IEEE, April , 2013)
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Abstract:
Multispectral analysis is a promising approach in
tissue classification and abnormality detection from Magnetic
Resonance (MR) images. But instability in accuracy and
reproducibility of the classification results from conventional
techniques keeps it far from clinical applications. Recent studies
proposed Independent Component Analysis (ICA) as an effective
method for source signals separation from multispectral MR data.
However, it often fails to extract the local features like small
abnormalities, especially from dependent real data. A multisignal
wavelet analysis prior to ICA is proposed in this work to resolve
these issues. Best de-correlated detail coefficients are combined
with input images to give better classification results.
Performance improvement of the proposed method over
conventional ICA is effectively demonstrated by segmentation
and classification using k-means clustering. Experimental results
from synthetic and real data strongly confirm the positive effect
of the new method with an improved Tanimoto index/Sensitivity
values, 0.884/93.605, for reproduced small white matter lesions
Description:
International conference on Communication and Signal Processing, April 3-5, 2013, India
Santhosh Kumar, G(Cochin University of Science And Technology, June 23, 2010)
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Abstract:
Page 1. Web 2.0 Technologies for Education G. Santhosh Kumar Dept. Of Computer Science
Cochin University Page 2. What is Internet? CUSAT is linked to this Web through 10 Mbps leased
line connectivity Page 3. Size of the Web? GYWA = Sorted on Google, Yahoo!, Windows Live
Search (Msn Search) and Ask YGWA = Sorted on Yahoo!, Google, Windows Live Search (Msn
Search) and Ask www.worldwidewebsize.com Page 4. The Machine is Us/ing Us ■
http://in.youtube.com/watch?v=NLlGopyXT_g&feature=channel Page 5. ..
Santhosh Kumar, G(Cochin University of Science And Technology, June 23, 2010)
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Abstract:
Page 1. Webhosting and Networking G. Santhosh Kumar, Dept. of Computer Science Cochin
University of Science and Technology Page 2. Agenda What is a Network? Elements of a Network
Hardware Software Ethernet Technology World Wide Web Setting up a Network Conclusion Page
3. What is a Network? An interconnected system of things or people Purpose of a Network?
Resource Sharing Communication LANs have become the most popular form of Computer
Networks Page 4. Principle of Locality of Reference Temporal Locality of Reference ...
Archana, S N; Dr.Humayoon,Kabir S(Cochin University of Science and Technology, June , 2010)
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Abstract:
Websites of academic institutions are the prime source of information about
the institution. Libraries, being the main provider of information for the academics,
need to be represented in the respective homepages with due importance. Keeping
this in mind, this study is an attempt to understand and analyze the presence and
presentation of libraries of Engineering Colleges (EC) in Kerala in their respective
websites. On the basis of the reviewed literature and an observation of libraries of
nationally important institutions imparting technical education in India, a set of
criteria were developed for analyzing the websites/web pages. Based on this an extensive
survcy of the websites of ECs were done. The collected data was then analyzed
using Microsoft Excel. The library websites were then ranked on the basis of this
analysis. It was observed that majority of the websites of ECs in Kerala have least
representation of their respective libraries. Another important observation is that
even the highest scoring libraries satisfy only half of the criteria listed for analysis.
Manju, Kurian; Sugunan, S(Elsevier, January , 2006)
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Abstract:
Wet peroxide oxidation (WPO) of phenol is an effective means for the production of diphenols, which are of great industrial importance. An added advantage of this method is the removal of phenol from wastewater effluents. Hydroxylation of phenol occurs efficiently over mixed iron aluminium pillared montmorillonites. An initial induction period is noticed in all cases. A thorough study on the reaction variables suggests free radical mechanism for the reaction.
Mythili, P; Babita, Jose R; Jimson, Mathew; Pradhan, D K(IEEE, December 10, 2007)
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Abstract:
This work presents a wideband low-distortion sigmadelta
analog-to-digital converter (ADC) for Wireless Local Area
Network (WLAN) standard. The proposed converter makes use
of low-distortion swing suppression SDM architecture which is
highly suitable for low oversampling ratios to attain high
linearity over a wide bandwidth. The modulator employs a 2-2
cascaded sigma-delta modulator with feedforward path with a
single-bit quantizer in the first stage and 4-bit in the second stage.
The modulator is designed in TSMC 0.18um CMOS technology
and operates at 1.8V supply voltage. Simulation results show
that, a peak SNDR of 57dB and a spurious free dynamic range
(SFDR) of 66dB is obtained for a 10MHz signal bandwidth, and
an oversampling ratio of 8.
Description:
Information, Communications & Signal Processing, 2007 6th International Conference on
Lethakumary,B; Sreedevi, Menon K; Priya,Francis; Aanandan,C K; Mohanan, P(Microwave and Optical Technology Letters, January 20, 2005)
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Abstract:
In this paper, we introduce a novel feeding technique for
bandwidth enhancement of a rectangular microstrip antenna This antenna
offers an impedance bandwidth of 22% without degrading the effciencv.
The effect of the feed parameters upon patch characteristics
such as resonant frequency, impedance bandwidth, and radiation pattern are studied in detail. The experimental results are verified using the
FDTD results
Sreedevi, Menon K; Lethakumary,B; Mohanan, P; Bijumon, P V; Sebastian,M T(Microwave and Optical Technology Letters, August 20, 2004)
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Abstract:
A broadband cylindrical dielectric resonator antenna
(DRA) energized with an L-strip feed is presented The novel exciting
technique achieves a 2:1 VSWR bandwidth of 18%. The variation of
bandwidth for different feed parameters is also studied
The design and development of an L-band printed dipole antenna.
optimized for wide-band applications near first resonance, is reported.
This design has achieved more than 48% impedance bandwidth
(VSWR 2:1), without degrading its overall radiation efficiency
Sarin, V P; Nisha, Nassar; Deepu, V; Aanandan,C K; Mohanan, P; Vasudevan, K(Antennas and Wireless Propagation Letters, IEEE, 2009)
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Abstract:
A simple electromagnetically coupled wideband printed microstrip antenna having a 2:1 VSWR bandwidth of 38% covering the 5.2/5.8-GHz WLAN, HIPERLAN2, and HiSWANa communication bands is presented. The large bandwidth is obtained by adding a rectangular metal strip on a slotted square microstrip antenna. The antenna occupies an overall dimension of 42 times 55 times 3.2 mm3 when printed on a substrate of dielectric constant 4. It exhibits good radiation characteristics and moderate gain in the entire operating band. Details of the design along with experimental and simulation results are presented and discussed.
Suma,M N; Bybi, P C; Mohanan, P(Wiely, May , 2006)
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Abstract:
A planar monopole antenna suitable for broadband wireless communication is designed and developed. With the use of a truncated ground plane, the proposed printed monopole antenna offers nearly 60% 2:1 VSWR bandwidth and good radiation characteristics for the frequencies across the operating band. A parametric study of the antenna is performed based on the optimized design, and a prototype of the antenna suitable for 2.4-GHz WLAN application is presented. The antenna can be easily integrated into wireless circuitry and is convenient for application in laptop computers.
Lethakumary,B; Sreedevi, Menon K; Aanandan,C K; Mohanan, P(Microwave and Optical Technology Letters, April 5, 2003)
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Abstract:
An electromagnetically coupled T-shaped microstrip feed
used to enhance the impedance bandwidth of a rectangular microstrip
antenna is reported. The proposed antenna offers a 2:1 VSWR bandwidth
of -36% with an increase in gain of 0.8 dB
Sreedevi, Menon K; Lethakumary,B; Vasudevan, K(Microwave and Optical Technology Letters, November 5, 2002)
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Abstract:
Bandwidth enhancement of a rectangular microstrip
antenna using a T-shaped microstrip feed is explored in this paper.
A 2:1 VSWR impedance bandwidth of 23% is achieved by employing
this technique. The far-field patterns are stable across the pass band.
The proposed antenna can be used conveniently in broadband communications
Mathew, K T; Stephen,D S; Aanandan,C K; Mohanan, P; K G Nair(Department of Electronics, May 12, 1994)
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Abstract:
A trapezoidal strip grating surface that eliminates specular
reflections almost over the entire X -band frequency range for TM
polarization is reported This new grating structure overcomes the
bandwidth limitation of conventional rectangular strip grating surfaces
Poulose Jacob,K; Santhosh, Simon(International Journal of Modern Engineering Research, 2012)
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Abstract:
The evolution of wireless sensor network technology has enabled us to develop advanced systems for real time monitoring. In the present scenario wireless sensor networks are increasingly being used for precision agriculture. The advantages of using wireless sensor networks in agriculture are distributed data collection and monitoring, monitor and control of climate, irrigation and nutrient supply. Hence decreasing the cost of production and increasing the efficiency of production.This paper describes the application of wireless sensor network for crop monitoring in the paddy fields of kuttand, a region of Kerala, the southern state of India.
Description:
International Journal of Modern Engineering Research (IJMER)
www.ijmer.com Vol.2, Issue.4, July-Aug 2012 pp-2017-2020
Santhosh Kumar, G(Cochin University of Science And Technology, May 11, 2011)
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Abstract:
Page 1. The World of Sensor Networks G Santhosh Kumar, CUSAT Kumar, CUSAT Page
2. Are you as quick as Messi or Bale? WSN adidas innovation (source: http://www.wsnblog.
com/) Page 3. Fukushima nuclear disaster • Fukushima Rescue Workers Facing Depression
and Death • How to measure the levels of radiation of the affected zones without compromising
the life of the workers? • Radiation measurements in real-time Page 4. Fukushima nuclear
disaster Page 5. Fukushima nuclear disaster Page 6. Goals .
Rani, Joseph(John Wiley & Sons, Inc., March 20, 2000)
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Abstract:
ABSTRACT: Zinc salts of ethyl, isopropyl, and butyl xanthates were prepared in the
laboratory. They were purified by reprecipitation and were characterized by IR, NMR,
and thermogravimetric analysis techniques. The melting points were also determined.
The rubber compounds with different xanthate accelerators were cured at temperatures
from 30 to 150°C. The sheets were molded and properties such as tensile strength,
tear strength, crosslink density, elongation at break, and modulus at 300% elongation
were evaluated. The properties showed that all three xanthate accelerators are effective
for room temperature curing.
Junaid, Bushiri M; Kochuthresia, T C; Athimoolam, S; Ramakrishnan, V; Vaidyan, V K(Scientific Research Publishing, January 10, 2013)
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Abstract:
Th(BrO3)3·H2O single crystals were grown from its aqueous solution at room temperature. Single crystal XRD, Raman and FTIR techniques were used to investigate the crystal structure. The crystal structure was solved by Patterson method. The as grown crystals are in monoclinic system with space group P21/c. The unit cell parameters are a = 12.8555(18) Å, b = 7.8970(11) Å, c = 9.0716(10) Å, = 90°, = 131.568° and = 90° and unit cell volume is 689.1(2) Å3. Z = 8, R factor is 5.9. The Raman and FTIR studies indicate the lowering of symmetry of bromate anion from C3V to C1. Hydrogen bonds with varying strengths are present in the crystal. The centrosymmetric space group P21/c of the crystal is confirmed by the non-coincidence of majority of Raman and IR bands
Description:
Crystal Structure Theory and Applications, 2013, 2, 70-74