Binoy,G S; Aanandan,C K; Mohanan, P; Vasudevan, K(Microwave Engineering Group,Department of Electronics, January 5, 2002)
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Abstract:
A novel dual frequency design of a square microstrip antenna coaxially
fed along the diagonal with a chip capacitor mounted at the bottom of
the stub is introduced. This design provides enhanced area reduction and
good cross-polarization levels. The antenna design can be used as a compact
antenna system where limited size is a major requirement. The details of the
antenna design and experimental results are presented
Mridula, S; Deepu, V; Sujith, R; Mohanan, P(Wiley Subscription Services, Inc., A Wiley Company, July 18, 2008)
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Abstract:
A slot line fed planar dipole antenna with a parasitic
strip for wide band applications is presented. The presented antenna
offers a 2:1 VSWR bandwidth from 1.66 to 2.71 GHz covering the DCS/
PCS/UMTS and IEEE 802.11b/g bands with a gain better than 6.5 dBi.
The uniplanar design, simple feeding, and high gain make it a versatile
antenna for wireless applications
Description:
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS / Vol. 51, No. 3, March 2009
Sona,Kundukulam O; Manju,Paulson; Aanandan,C K; Mohanan, P(Microwave and Optical Technology Letters, December 5, 2001)
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Abstract:
Dual frequency operation is achieved from a compact
microstrip antenna by loading a pair of narrow slots close to its radiating
edges. The two frequencies have parallel polarization planes and similar
radiation characteristics. The ratio between the two operating frequencies
can be tuned in the range (1.14-1. 24), which is much smaller than that
of similar designs. The above excellent radiation characteristics are
achieved along with an area reduction of - 75% compared to the
standard rectangular patch
The concept of social clause has
been accepted in the GATT
agreement to prescribe the
labour standards. Social clause
, $tands for protecting labour
standards, more specificalfy
prohibition of employment of
children in hazardous industries,
providing adequate wages.
healthy and hygienic working
conditions, special social welfare
protection for women,
prescription of hours of work and
rest and provision for efficacious
remedy in case of default by
employer to provide these
conditions to his workers.
Tourism is an industry which is heavily dependent on marketing. Mouth to mouth communication has played a major role in shaping a number of destinations.This is particularly true in modern parlance.This is social networking phenomenon which is fast spreading over the internet .Many sites provide visitors a lot of freedom to express their views.Promotion of a destination depends lot on conversation and exchange of information over these social networks.This paper analyses the social networking sites their contribution to marketing tourism and hoapitality .The negetive impacts phenomena are also discussed
Description:
Indian Journal of Tourism and Hospitality Management Vol.11 No.2 Dec 2010
Rajasenan, D; Varghese, Manaloor; Bijith, George Abraham(2012)
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Abstract:
The paper is an attempt to shed light on the socio-economic aspects of the local communities on the development of
ecotourism in Kerala. Most of the local communities in the ecotourism destinations are tribes who have been
excluded from the mainstream society and are not a part of Kerala’s overall development setting. The paper also tries
to situate the community perception on the sustainable livelihood of ecotourism sites of Kerala. Data for the study is
obtained from a primary survey by dividing the ecotourism destinations in Kerala into three zones, 230 from south
zone, 220 from central zone and 200 from north zone with a total sample size of 650 based on the notion of
community based ecotourism initiatives of the state. The result of the study confirms that ecotourism has helped to
enhance the livelihood of the marginalized community. With well-knit policies it is possible to tag ecotourism of
Kerala as an important tourism destination in the global tourism map
Description:
Research on Humanities and Social Sciences,Vol 2, No.11, 2012
This paper describes certain findings of intonation and intensity study of emotive speech with the minimal use of
signal processing algorithms. This study was based on six basic emotions and the neutral, elicited from 1660 English
utterances obtained from the speech recordings of six Indian women. The correctness of the emotional content was
verified through perceptual listening tests. Marked similarity was noted among pitch contours of like-worded,
positive valence emotions, though no such similarity was observed among the four negative valence emotional
expressions. The intensity patterns were also studied. The results of the study were validated using arbitrary
television recordings for four emotions. The findings are useful to technical researchers, social psychologists and to
the common man interested in the dynamics of vocal expression of emotions
Rare earth metal ion exchanged (La3+, Ce3+, RE3+) KFAU-Y zeolites were prepared by simple ion-exchange methods and have
been characterized using different physico-chemical techniques. In this paper a novel application of solid acid catalysts in the dehydration/
Beckmann rearrangement of aldoximes; benzaldoxime and 4-methoxybenzaldoxime is reported. Dehydration/Beckmann
rearrangement reactions of benzaldoxime and 4-methoxybenzaldoxime is carried out in a continuous down flow reactor at
473K. 4-Methoxybenzaldoxime gave both Beckmann rearrangement product (4-methoxyphenylformamide) and dehydration product
(4-methoxybenzonitrile) in high overall yields. The difference in behavior of the aldoximes is explained in terms of electronic
effects. The production of benzonitrile was near quantitative under heterogeneous reaction conditions. The optimal protocol allows
nitriles to be synthesized in good yields through the dehydration of aldoximes. Time on stream studies show a fast decline in the
activity of the catalyst due to neutralization of acid sites by the basic reactant and product molecules.
The rising pressure of Population, together with the constantly changing
technologies, and development perspectives, contribute to the ever increasing
volumes of wastes in different forms. The solid and liquid wastes generated in the
urban areas were considered a burden to the society, and hazardous to the
environment. The fact is that the growth of consumerist culture and aimless
throwing of refuse by the people created the outbreak of environmental pollution.
Unhygienic environment and solid waste accumulation coincided with mosquito
breeding which causes, the spread of most epidemics. The rationale behind most of
the diseases is the unhygienic pattern followed by the people both in rural and urban
areas. As an environmental package, the disposal of solid waste from different
sources, such as house holds markets, commercial areas, slaughter houses, hospitals
and industries, therefore assumed crucial importance. So as a part of the theory and
practice, a study on the area, solid waste management of Arppukara Grama
Panchayat of Kottayam district is taken into consideration. The study conducted here
proposes, to examine the quality and quantity of the solid waste generated in the
panchayat and also it's impact on the existing social, economical, environmental and
ecological systems
Description:
Journal of Global Economy,
Volume 6 No 1, JANUARY-FEBRUARY, 2010
Sreekumar, J; Nandakumaran, V M(Physics Letters, October 21, 1985)
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Abstract:
The phenomenon of two-soliton resonances of the Kadomtsev-Petviashvilli equation for the superfluid surface density fluctuation in He films is studied. The velocity of the resonant soliton is obtained.
Sreekumar, J; Nandakumaran, V M(Springer, December , 1989)
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Abstract:
The dynamics of saturated two-dimensional superfluid4He films is shown to be governed by the Kadomtsev-Petviashvili equation with negative dispersion. It is established that the phenomena of soliton resonance could be observed in such films. Under the lowest order nonlinearity, such resonance would happen only if two dimensional effects are taken into account. The amplitude and velocity of the resonant soliton are obtained.
Sugunan, S(Indian Journal of Chemistry, February , 1983)
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Abstract:
Solubilities of 4-nitrobenzoic acid at 25°, 35° and 42°C have
been determined in water and in the presence of several concentrations
of electrolytes. The free energies, enthalpies and entropies
of transfer are also reported. The data have been rationalized
by considering the structure-breaking effects of the ions of
the salts and the requirement of the localized hydrolysis model.
The theory of Symons is not satisfactory to rationalise the
experimental data.
Bindhu, C V; Harilal, S S; Nampoori, V P N; Vallabhan, C P G(World Scientific, 1999)
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Abstract:
Dual beam thermal lens tecbnique is successfully employed for the determination of absolute
Fluorescence quantum yield of rhodamine 6G lnser dye in different solvents. A
532 nm radiation from a Q-switched Nd:YAG laser was used for the excitation purpose.
The fluorescence quantum yield values are found to be strongly influenced by environmental
effects. It has been observed that fluorescence yield is greater for rhodamine 6G
in ethylene glycol system than in water or in methanol. Our results also indicate that
parameters like concentration of the dye solution, aggregate formation and excited state
absorption affect the absolute values of fluorescence yield significantly.
Somatic embryos were induced from scutellar callus of immature zygotic embryos of T aestivum cv.
Chinese Spring. Observations on precociously germinating somatic embryos revealed that: (i) In the initial
stages the coleoptile is split, exposes the shoot apex and forms a green trichomatous leafy structure.
In the germinating zygotic embryo, the coleoptile is tubular, (ii) Unlike what has been inferred earlier the
leafy structure is the coleoptile and not the scutellum, (iii) Bipolarity of the embryoid is established later
when root develops at the basal end.
When simulation modeling is used for
performance improvement studies of complex systems such as
transport terminals, domain specific conceptual modeling
constructs could be used by modelers to create structured
models. A two stage procedure which includes identification of
the problem characteristics/cluster - ‘knowledge acquisition’
and identification of standard models for the problem cluster –
‘model abstraction’ was found to be effective in creating
structured models when applied to certain logistic terminal
systems. In this paper we discuss some methods and examples
related the knowledge acquisition and model abstraction stages
for the development of three different types of model categories
of terminal systems
Description:
Proceedings of the World Congress on Engineering and Computer Science 2012 Vol II
WCECS 2012, October 24-26, 2012, San Francisco, USA
Indulal,G; Vijayakumar,Ambat(Department of Mathematics, 2002)
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Abstract:
Two graphs G and H are Turker equivalent if they have the same set of Turker angles.
In this paper some Turker equivalent family of graphs are obtained.
In this paper, we study some dynamic generalized information measures between a
true distribution and an observed (weighted) distribution, useful in life length studies. Further,
some bounds and inequalities related to these measures are also studied
The eigenvalue of a graph is the eigenvalue of its adjacency matrix . A graph
G is integral if all of its cigenvalues are integers. In this paper some new
classes of integral graphs are constructed.
Sunoj, S M; Maya, S S(Taylor & Francis, August 19, 2006)
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Abstract:
In this article we introduce some structural relationships between weighted and
original variables in the context of maintainability function and reversed repair rate.
Furthermore, we prove some characterization theorems for specific models such as
power, exponential, Pareto II, beta, and Pearson system of distributions using the
relationships between the original and weighted random variables
Description:
Communications in Statistics—Theory and Methods, 35: 223–228, 2006