1,739 research outputs found
Adjoint Operators of Two Dimensional Fractional Fourier-Mellin Transform
Methods based on the Fourier transform and Mellin transform are used in virtually all areas of engineering and science and by virtually all engineers and scientists. These transform play a important role in signal processing, algorithm, watermarking, pattern recognition, correlators, navigation, vowel recognition, cryptographic scheme, quantum calculus, radar system and have applications in agriculture, medical stream, detection of watermark in images regardless of the scaling and rotation. In this paper we present an adjiont shifting operator, adjoint scaling operator and adjoint shifting-scaling operator of two dimensional fractional Fourier-Mellin transform. Also we discuss some transform formulae using adjoint differential operator
Convolution Structure of Fractional Quaternion Mellin Transform
Mellin transform is a basic tool for analyzing the behavior of many important functions in mathematics and mathematical physics. A quaternion is a 4 dimensional number, a generalization of a complex number. Basically it used in image registration. This paper is focus on the new convolution structure of Fractional Quaternion Mellin transform. Also the main properties i.e. associative, distributive, linear, shifting for the convolution of Fractional Quaternion Mellin Transform are proved
Occurrence of dusky sweeper Pempheris adusta Bleeker, 1877 in Ratnagiri waters, Maharashtra
Pempheris adusta Bleeker, 1877, commonly
called ‘dusky sweeper’ (Fig. 1), generally live on coral
reefs and form schools in large caves among rocks.
On 19/08/2009, a good number of specimens of
P. adusta were observed at Mirkarwada landing
centre in Ratnagiri (Fig. 2). They had elliptical,
compressed body with iridescent, coppery silver
colouration, because of which they were spectacular
in appearance
Applications of Two Dimensional Fractional Fourier-Mellin Transform to Differential Equations
Integral transforms play wide and important role in mathematical physics, theoretical physics. Fourier-Mellin transform is used in fields like electronics, agriculture, medical etc.nbspIt has applications as registration of images, watermarks, invariant pattern recognition, preprocessing of images.nbspIn this paper we have obtained the differential operator and and and*. Using it we have solved the differential equation of the type . Also an application of two-dimensional fractional Fourier-Mellin transform to differential equation is presented
Study of various causes of defaulter among tuberculosis patients under revised national tuberculosis control programme: a prospective analysis of 5235 tuberculosis patients
Background: The world health organization (WHO) declared tuberculosis (TB) a global public health emergency in 1993 and since then intensified its efforts to control the disease worldwide. Poor compliance with tuberculosis (TB) treatment has reportedly been cited as one of the major obstacles which have led to spread of TB and development of multi-drug resistant and extensively drug resistant tuberculosis. The objective is to investigate factors contributing to treatment non-adherence among patients on TB treatment, the results of which might help us to design intervention that would promote compliance.Methods: All TB patients admitted to the Institute were interviewed regarding the past history of anti-tuberculosis treatment (AKT). As per the revised national tuberculosis control programme (RNTCP) guidelines, we defined defaulter as patient who had interrupted AKT for more than 2 months. All the interviewed patients had taken AKT at RNTCP DOT sites. Patient who has taken AKT from private institute were excluded. All the defaulted patients were then interviewed in details. In addition to the personal and socio-demographic data, treatment history was recorded in details along with reasons for stopping treatment.Results: Among 5235 TB patients, 405 (7.7%) were found to have a past history of AKT interruption. The highest number of treatment interrupters were in the age group 21 to 50 years (n=309), constituting nearly 76.29% of all the patients studied. The most common reason stated was AKT-induced side effects (42.2%) a feeling of early improvement (33.3%) and followed by migration for work (9.6%).Conclusions: Present study concludes that the most common cause of defaulters amongst tuberculosis patients are adverse effects, feeling of early improvement and migration.
Food and feeding habit of a penaeid prawn Metapeneopsis stridulans (Alcock 1905)
Metapeneopsis stridulans feeds on a variety of food items, viz. diatoms, foraminiferans
polychaetes, molluscs, crustaceans and detritus consisting of unidentifiable decaying matter
along with sand and mud. The species does not show a preference for any particular food
item. There is no significant difference in the food habits among the various size groups
observed in the prawn. Monthwise feeding intensity for males and females shows males
with empty stomach to be prevalent in most months
Variability in Markingnut (Semecarpus anacardium L.) Accessions from Marathwada Region of Maharashtra State
A survey was conducted in markingnut growing area (Aurangabad, Beed, Hingoli, Nanded and Parbhani districts) of Marathwada region in Maharashtra (India) during 2005-07 to assess existing natural variability for superior genotypes and good fruit-quality among 264 markingnut seedling trees and 27 superior clones. All the genotypes showed considerable variability with respect to physico-chemical characters. Fruit weight varied from 5.0 (PD-2) to 15.88 g (HD-5) and hypocarp weight from 3.37 (AD-2 and PD-1) to 10.67g (HD-5). Individual pericarp weight ranged from 1.59 (PD-2) to 5.21 g (HD-5) and kernel weight ranged from 0.16 (PD-2) to 1.07 g (HD-5). There was wide variation in chemical characteristics. Also, T.S.S. varied from 5.67 (BD-3) to 13.10°B (ND-3) and titratable acidity from 0.22 (AD-1) to 1.93% (BD-3). Kernel protein content ranged from 13.22 (AD-2) to 25.75% (HD-5), carbohydrate content from 17.92 (PD-3) to 26.91% (AD-3), fat content from 31.57 (HD-3) to 40.59% (PD-4) and pericarp oil (B.S.L) content from 27.80 (BD-4) to 41.74% (HD-2). On the basis of physico-chemical characters assessed, genotypes HD-5 and ND-3 were found to be most promising
Accurate estimations of circumstellar and interstellar lines of quadruply ionized vanadium using the coupled cluster approach
Accurate {\it ab initio} calculations have been carried out to study the
valence electron removal energies and oscillator strengths of astrophysically
important electromagnetic transitions of quadruply ionized vanadium, .
Many important electron correlations are considered to all-orders using the
relativistic coupled-cluster theory. Calculated ionization potentials and fine
structure splittings are compared with the experimental values, wherever
available. To our knowledge, oscillator strengths of electric dipole
transitions are predicted for the first time for most of the transitions. The
transitions span in the range of ultraviolet, visible and near infrared regions
and are important for astrophysical observations.Comment: Submitted in Astrophysical
Review on Botnet Threat Detection in P2P
Botnets are nothing but the malicious codes such as viruses which are used for attacking the computers. These are act as threats and are very harmful. Due to distributed nature of botnets, it is hard to detect them in peer-to-peer networks. So we require the smarter technique to detect such threats. The automatic detection of botnet traffic is of high importance for service providers and large campus network monitoring. This paper gives the review on the various techniques used to detect such botnets.
DOI: 10.17762/ijritcc2321-8169.15026
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