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Search Results: 1 - 10 of 900 matches for " Santosh Nannuru "
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Multisensor CPHD filter
Santosh Nannuru,Stephane Blouin,Mark Coates,Michael Rabbat
Statistics , 2015,
Abstract: The single sensor probability hypothesis density (PHD) and cardinalized probability hypothesis density (CPHD) filters have been developed using the random finite set framework. The existing multisensor extensions of these filters have limitations such as sensor order dependence, numerical instability or high computational requirements. In this paper we derive update equations for the multisensor CPHD filter. We propose a computationally tractable implementation that greedily identifies measurement subsets and partitions that significantly contribute to the update equations.
Gold Nanorod, an Optical Probe to Track HIV Infection  [PDF]
Santosh Kumar
Journal of Sensor Technology (JST) , 2012, DOI: 10.4236/jst.2012.21006
Abstract: Infectious diseases caused by the human immunodeficiency virus (HIV) remain the leading killers of human beings worldwide, and function to destabilize societies in Africa, Asia and the Middle East. Driven by the need to detect the presence of HIV viral sequence, here we demonstrate that the second order nonlinear optical (NLO) properties of gold nanorods can be used for screening HIV-1 viral DNA sequence without any modification, with good sensitivity (100 pico-molar) and selectivity (single base pair mismatch). The hyper Rayleigh Scattering (HRS) intensity increases 58 times when label-free 145-mer, ss-gag gene DNA, was hybridized with 100 pM target DNA. The mechanism of HRS intensity change has been discussed with experimental evidence for higher multipolar contribution to the NLO response of gold nanorods.
Object-Oriented Database Connectivity for Hand Held Devices  [PDF]
Vipin Saxena, Santosh Kumar
Journal of Software Engineering and Applications (JSEA) , 2012, DOI: 10.4236/jsea.2012.55037
Abstract: Due to the lack of representation of an object-oriented database on hand-held devices, the present work describes an approach to send the information in the form of an object-oriented database on hand-held devices. A smart phone is selected as a hand-held device and connectivity between the object-oriented databases has been established by the use of the object-oriented programming language C#.Net. For modeling purpose, Unified Modeling Language (UML) is used to specify a UML Class Model and Sequence diagram. A concept of star schema is also used to represent the object-oriented database.
Object Oriented Query Response Time for UML Models  [PDF]
Vipin Saxena, Santosh Kumar
Journal of Software Engineering and Applications (JSEA) , 2012, DOI: 10.4236/jsea.2012.57059
Abstract: Nowadays, the size of database of any business organization is increasing and many of the companies are shifted the old structured database into the object oriented database. Due to increase of size of database complexity of database is increasing therefore, it is necessary to optimize the object oriented query response time from the complex object oriented database. In the present paper, a real case study of Life Insurance Corporation of India is taken and sample object oriented database is designed by the use of SQL Server 2008. A UML model is designed for computing the object oriented query response time. Table and graph are also represented for the computed records in five runs.
Impact of Coupling and Cohesion in Object-Oriented Technology  [PDF]
Vipin Saxena, Santosh Kumar
Journal of Software Engineering and Applications (JSEA) , 2012, DOI: 10.4236/jsea.2012.59079
Abstract: The interaction between the classes or within the classes shows the complexity of the design. For one smaller problem, there may be more than one software design but who will be the best; depends on the complexity level of software design. Therefore, coupling and cohesion which shows the interlinking of classes and strength of classes; control the complexity of the design. The best software object oriented design is based upon the low coupling and high cohesion level. In the present work, a real case study of Life Insurance policy for handicapped person is demonstrated through the UML Class Diagram; coupling and cohesion levels are measured and results are demonstrated in the form of tables.
MHD Stagnation Point Flow and Heat Transfer over a Permeable Surface  [PDF]
Santosh Chaudhary, Pradeep Kumar
Engineering (ENG) , 2013, DOI: 10.4236/eng.2013.51008
Abstract:

The steady two-dimensional, laminar flow of a viscous, incompressible, electrically conducting fluid near a stagnation point with heat transfer over a permeable surface in the presence of a uniform magnetic field is considered. Taking suitable similarity variables, the governing boundary layer equations are transformed to ordinary differential equations and solved numerically by Shooting method. The effects of the suction parameter, the magnetic parameter, the Prandtl number and the Eckert number are studied on the velocity and temperature distributions.

MHD Slip Flow past a Shrinking Sheet  [PDF]
Santosh Chaudhary, Pradeep Kumar
Applied Mathematics (AM) , 2013, DOI: 10.4236/am.2013.43081
Abstract:

An analysis is made for the steady two-dimensional laminar boundary layer flow of a viscous, incompressible, electrically conducting fluid near a stagnation point past a shrinking sheet with slip in the presence of a magnetic field. The governing boundary layer equations are transformed to ordinary differential equations by taking suitable similarity variables and solved numerically by Shooting method. The effects of the various parameters such as velocity ratio parameter, slip parameter, Prandtl number, Eckert number and magnetic parameter for velocity and temperature distributions have been discussed in detail through graphical representation.

Process for the Preparation of Chromones, Isoflavones and Homoisoflavones Using Vilsmeier Reagent Generated from Phthaloyl Dichloride and DMF  [PDF]
Santosh Kumar Yadav
International Journal of Organic Chemistry (IJOC) , 2014, DOI: 10.4236/ijoc.2014.44027
Abstract: Vilsmeier reagent formed from phthaloyl dichloride and DMF was found to be very effective for converting 2-hydroxyacetophenones, deoxybenzoins and dihydrochalcones into corresponding chromones, isoflavones and homoisoflavones with excellent yield. This method offers significant advantages such as efficiency and mild reaction conditions with shorter reaction time.
Unsteady Magnetohydrodynamic Boundary Layer Flow near the Stagnation Point towards a Shrinking Surface  [PDF]
Santosh Chaudhary, Pradeep Kumar
Journal of Applied Mathematics and Physics (JAMP) , 2015, DOI: 10.4236/jamp.2015.37112
Abstract: The unsteady two-dimensional, laminar flow of a viscous, incompressible, electrically conducting fluid towards a shrinking surface in the presence of a uniform transverse magnetic field is studied. Taking suitable similarity variables, the governing boundary layer equations are transformed to ordinary differential equations and solved numerically by a perturbation technique for a small magnetic parameter. The effects of various parameters such as unsteadiness parameter, velocity parameter, magnetic parameter, Prandtl number and Eckert number for velocity and temperature distributions along with local Skin friction coefficient and local Nusselt number have been discussed in detail through numerical and graphical representations.
A New Heuristic for the Convex Quadratic Programming Problem  [PDF]
Elias Munapo, Santosh Kumar
American Journal of Operations Research (AJOR) , 2015, DOI: 10.4236/ajor.2015.55031
Abstract: This paper presents a new heuristic to linearise the convex quadratic programming problem. The usual Karush-Kuhn-Tucker conditions are used but in this case a linear objective function is also formulated from the set of linear equations and complementarity slackness conditions. An unboundedness challenge arises in the proposed formulation and this challenge is alleviated by construction of an additional constraint. The formulated linear programming problem can be solved efficiently by the available simplex or interior point algorithms. There is no restricted base entry in this new formulation. Some computational experiments were carried out and results are provided.
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