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Comparing an analytical spacetime metric for a merging binary to a fully non-linear numerical evolution using curvature scalarsFeb 08 2018We introduce a new geometrically invariant prescription for comparing two different spacetimes based on geodesic deviation. We use this method to compare a family of recently introduced analytical spacetime representing inspiraling black-hole binaries ... More

Standard Bases over RingsOct 06 2009The theory of standard bases in polynomial rings with coefficients in a ring R with respect to local orderings is developed. R is a commutative Noetherian ring with 1 and we assume that linear equations are solvable in R.

The holographic principle and the Immirzi parameter of loop quantum gravityOct 14 2015The geometrical spectra in loop quantum gravity (LQG) suffer from ambiguity up to the free Immirzi parameter that is often determined by comparing results from the theory with the established dynamics at the black hole horizon. We address conceptual difficulties ... More

F4 Algorithm For Euclidean RingsJun 08 2010This short note is the generalization of Faugere F4-algorithm for polynomial rings with coefficients in Euclidean rings. This algorithm computes successively a Groebner basis replacing the reduction of one single s-polynomial in Buchberger's algorithm ... More

A Correction to the Immirizi Parameter of SU(2) Spin NetworksSep 26 2014The elegant predictions of loop quantum gravity are obscured by the free Immirizi parameter. Dreyer (2003), considering the asymptotic quasinormal modes spectrum of a black hole, proposed that the Immirizi parameter may be fixed by letting the j=1 transitions ... More

Electromagnetic Effects on Cracking of Anisotropic PolytropesOct 01 2016In this paper, we study the electromagnetic effects on stability of spherically symmetric anisotropic fluid distribution satisfying two polytropic equations of state and construct the corresponding generalized Tolman Oppenheimer Volkoff equations. We ... More

Barycentric Hermite InterpolationMay 17 2011Aug 27 2014Let $z_{1},\ldots,z_{K}$ be distinct grid points. If $f_{k,0}$ is the prescribed value of a function at the grid point $z_{k}$, and $f_{k,r}$ the prescribed value of the $r$\foreignlanguage{american}{-th} derivative, for $1\leq r\leq n_{k}-1$, the Hermite ... More

Analyzing Self-Driving Cars on TwitterApr 05 2018This paper studies users' perception regarding a controversial product, namely self-driving (autonomous) cars. To find people's opinion regarding this new technology, we used an annotated Twitter dataset, and extracted the topics in positive and negative ... More

Finite Difference Weights, Spectral Differentiation, and SuperconvergenceFeb 15 2011May 17 2011Let $z_{1},z_{2},...,z_{N}$ be a sequence of distinct grid points. A finite difference formula approximates the $m$-th derivative $f^{(m)}(0)$ as $\sum w_{k}f(z_{k})$, with $w_{k}$ being the weights. We derive an algorithm for finding the weights $w_{k}$ ... More

Polynomial-complexity, Low-delay Scheduling for SCFDMA-based Wireless Uplink Networks (Technical Report)Jan 07 2013Uplink scheduling/resource allocation under the single-carrier FDMA constraint is investigated, taking into account the queuing dynamics at the transmitters. Under the single-carrier constraint, the problem of MaxWeight scheduling, as well as that of ... More

Revealing Method for the Intrusion Detection SystemApr 26 2010Oct 27 2010The goal of an Intrusion Detection is inadequate to detect errors and unusual activity on a network or on the hosts belonging to a local network by monitoring network activity. Algorithms for building detection models are broadly classified into two categories, ... More

On the Range Characterization of the two dimensional attenuated Doppler TransformNov 18 2014We characterize the range of the attenuated and non-attenuated $X$-ray transform of compactly supported vector fields in the plane. The characterization is in terms of a Hilbert transform associated with the $A$-analytic functions \`{a} la Bukhgeim. As ... More

A Feasibility Study of Using Light Fidelity With Multiple Unmanned Aerial Vehicles For Indoor Collaborative And Cooperative NetworkingJul 16 2017This paper evaluates the feasibility of using light fidelity with multiple Unmanned Aerial Vehicles (UAVs) for indoor collaborative and cooperative networking. A number of works have presentedchallenges for wireless networking with multiple UAVs such ... More

Partial inversion of the 2D attenuated Radon transform with data on an arcOct 20 2017Nov 29 2017In two dimensions, we consider the problem of inversion of the attenuated $X$-ray transform of a compactly supported function from data restricted to lines leaning on a given arc. We provide a method to reconstruct the function on the subdomain encompassed ... More

On the Range of the Attenuated Radon Transform in Strictly Convex SetsOct 09 2013We present new necessary and sufficient conditions for a function on $\partial\Omega\times S^1$ to be in the range of the attenuated Radon transform of a sufficiently smooth function support in the convex set $\bar\Omega\subset\mathbb{R}^2$. The approach ... More

Theory of the ultra-intense short-pulse laser interaction with under-dense plasmaJul 29 2015Nov 29 2015A comprehensive theory is proposed to describe the propagation and absorption of ultra-intense, short laser pulse through the under-dense plasma. The kinetic aspects of plasma are fully incorporated using extensive particle-in-cell (PIC) simulations. ... More

Steady viscous flows in an annulus between two cylinders produced by vibrations of the inner cylinderAug 27 2010Nov 23 2010We study the steady streaming between two infinitely long circular cylinders produced by small amplitude transverse vibrations of the inner cylinder about the axis of the outer cylinder. The Vishik-Lyusternik method is employed to construct an asymptotic ... More

Educational data mining using jmpNov 08 2014Educational Data Mining is a growing trend in case of higher education. The quality of the Educational Institute may be enhanced through discovering hidden knowledge from the student databases/ data warehouses. Present paper is designed to carry out a ... More

Large deviations sum-queue optimality of a radial sum-rate monotone opportunistic schedulerJun 25 2009Mar 12 2010A centralized wireless system is considered that is serving a fixed set of users with time varying channel capacities. An opportunistic scheduling rule in this context selects a user (or users) to serve based on the current channel state and user queues. ... More

Electron residual energy due to stochastic heating in field-ionized plasmaAug 09 2015The electron residual energy originated from the stochastic heating in under-dense field-ionized plasma is here investigated. The optical response of plasma is initially modeled by using the concept of two counter-propagating electromagnetic waves. The ... More

On Nonlinear Evolutions of the Intense, Short Laser Pulse in the Under-Dense PlasmaJul 27 2016Oct 29 2016Nonlinear evolutions of an ultra-intense, short laser pulse due to the wake excitation inside the plasma are studied by means of detailed Particle-In-Cell (PIC) simulations and comprehensive analyses. Pulse lengths both longer and shorter than the plasma ... More

Short Intense Laser Pulse Depletion and Scattering in Under-Dense PlasmaJul 27 2016Nonlinear evolutions of an ultra-intense, short laser pulse due to the wake excitation inside the plasma are studied by means of detailed particle-in-cell simulations and comprehensive analyses. Pulse lengths both longer and shorter than the plasma wavelength ... More

Inband device-to-device relays in cellular networksOct 08 2015A new design for two-hop opportunistic relaying in cellular networks is proposed, with the objective of throughput improvement. We propose using idle UEs in a cellular system with better channel to the base station to relay traffic for active UEs. One ... More

An Algorithm to Compute a Primary Decomposition of Modules in Polynomial Rings over the IntegersAug 19 2014We present an algorithm to compute the primary decomposition of a submodule $\mathcal{N}$ of the free module $\Z[x_1, \ldots, x_n]^m$. For this purpose we use algorithms for primary decomposition of ideals in the polynomial ring over the integers. The ... More

Effect of glass thickness variations on the performance of RPC detectorsMay 07 2016Oct 11 2016The India-based Neutrino Observatory (INO) is planning to build a magnetized iron calorimeter detector (ICAL) in which Resistive Plate Chambers (RPCs) will be the active detector elements. A study of the performance of RPCs, made using electrodes of various ... More

On the $X$-ray transform of planar symmetric 2-tensorsMar 14 2015In this paper we study the attenuated $X$-ray transform of 2-tensors supported in strictly convex bounded subsets in the Euclidean plane. We characterize its range and reconstruct all possible 2-tensors yielding identical $X$-ray data. The characterization ... More

Coherent states for polynomial su(1,1) algebra and a conditionally solvable systemMay 20 2012In a previous paper [{\it J. Phys. A: Math. Theor.} {\bf 40} (2007) 11105], we constructed a class of coherent states for a polynomially deformed $su(2)$ algebra. In this paper, we first prepare the discrete representations of the nonlinearly deformed ... More

A note on Exact solution of SIR and SIS epidemic modelsDec 22 2010In this article we have successfully obtained an exact solution of a particular case of SIR and SIS epidemic models given by Kermack and Mckendrick [1] for constant population, which are described by coupled nonlinear differential equations. Our result ... More

An algorithm for primary decomposition in polynomial rings over the integersAug 12 2010Aug 09 2011We present an algorithm to compute a primary decomposition of an ideal in a polynomial ring over the integers. For this purpose we use algorithms for primary decomposition in polynomial rings over the rationals resp. over finite fields, and the idea of ... More

Effect of Variation of Different Nano filler on Structural, Electrical, Dielectric and Transport Properties of Blend Polymer NanocompositesJul 10 2018In the present work, the effect of different nanofiller (BaTiO3, CeO2, Er2O3 or TiO2) on blend solid polymer electrolyte comprising of PEO and PVC complexed with bulky LiPF6 have been explored. The XRD analysis confirms the polymer nanocomposite formation. ... More

Effect of lithium bis(oxalato)borate on the Structural, microstructural and electrochemical properties of blend solid polymer electrolyteJul 04 2018Blend solid polymer electrolyte based on PEO, PVP complexed with lithium LiBOB were synthesized by solution cast technique and impact of LiBOB on the morphology, structure, and electrochemical properties is examined. The XRD and FESEM analysis reveals ... More

On primary decomposition of modulesAug 23 2014Sep 02 2014Primary decomposition is a very important tool of commutative algebra and geometry. In this paper we generalized some of the existing algorithms of primary decomposition developed by Eisenbud et al. (cf. [EHV]) for free modules and also filled some gaps ... More

Edge Detection: A Collection of Pixel based Approach for Colored ImagesMar 19 2015The existing traditional edge detection algorithms process a single pixel on an image at a time, thereby calculating a value which shows the edge magnitude of the pixel and the edge orientation. Most of these existing algorithms convert the coloured images ... More

Experimental Quantum Solution to the Dining Cryptographers ProblemFeb 07 2017Quantum resources such as superposition and entanglement have been used to provide unconditional key distribution, secret sharing and communication complexity reduction. In this letter we present a novel quantum information protocol for dining cryptographers ... More

The Impact of Mobility Model in the Optimal placement of Sensor Nodes in Wireless Body Sensor NetworkJan 04 2018Power and energy consumption is a fundamental issue in Body Sensor Networks (BSNs) since nodes must operate properly and autonomously for a certain period of time without battery replacement or change. This is due to the fact that the sensors in BSNs ... More

Multi-User Visible Light Communications: State-of-the-Art and Future DirectionsSep 06 2018Nov 14 2018Visible light communication (VLC) builds upon the dual use of existing lighting infrastructure for wireless data transmission. VLC has recently gained interest as cost-effective, secure, and energy-efficient wireless access technology particularly for ... More

Leveraging Multi-aspect Time-related Influence in Location RecommendationJan 03 2017Point-Of-Interest (POI) recommendation aims to mine a user's visiting history and find her/his potentially preferred places. Although location recommendation methods have been studied and improved pervasively, the challenges w.r.t employing various influences ... More

Estimating Individual Treatment Effect in Observational Data Using Random Forest MethodsJan 19 2017Jan 20 2017Estimation of individual treatment effect in observational data is complicated due to the challenges of confounding and selection bias. A useful inferential framework to address this is the counterfactual (potential outcomes) model which takes the hypothetical ... More

An improved vulnerability index of complex networks based on fractal dimensionJun 02 2014With an increasing emphasis on network security, much more attention has been attracted to the vulnerability of complex networks. The multi-scale evaluation of vulnerability is widely used since it makes use of combined powers of the links' betweenness ... More

Comments on "Momentum fractional LMS for power signal parameter estimation"May 19 2018The purpose of this paper is to indicate that the recently proposed Momentum fractional least mean squares (mFLMS) algorithm has some serious flaws in its design and analysis. Our apprehensions are based on the evidence we found in the derivation and ... More

Bounds on R-parity violating SUSY Yukawa couplings from semileptonic decays of baryonsJul 21 1998We consider tree-level corrections to hypercharge changing semileptonic decays of certain baryons induced by a minimal supersymmetric standard model with explicitly broken R-parity via $L$-violation. This study leads to a new set of constraints on the ... More

Study of glass properties as electrode for RPCMay 02 2016Operation and performance of the Resistive Plate Chambers (RPCs) mostly depend on the quality and characteristics of the electrode materials. The India-based Neutrino Observatory collaboration has chosen glass RPCs as the active detector elements for ... More

OSPF Weight Setting Optimization for Single Link FailuresJan 20 2011In operational networks, nodes are connected via multiple links for load sharing and redundancy. This is done to make sure that a failure of a link does not disconnect or isolate some parts of the network. However, link failures have an effect on routing, ... More

Enhanced ${q}$-Least Mean SquareJan 01 2018In this work, a new class of stochastic gradient algorithm is developed based on $q$-calculus. Unlike the existing $q$-LMS algorithm, the proposed approach fully utilizes the concept of $q$-calculus by incorporating time-varying $q$ parameter. The proposed ... More

Modeling contaminant intrusion in water distribution networks based on D numbersApr 02 2014Efficient modeling on uncertain information plays an important role in estimating the risk of contaminant intrusion in water distribution networks. Dempster-Shafer evidence theory is one of the most commonly used methods. However, the Dempster-Shafer ... More

Quantitative Photoacoustic Imaging in the Acoustic Regime using SPIMJun 06 2017While in standard photoacoustic imaging the propagation of sound waves is modeled by the standard wave equation, our approach is based on a generalized wave equation with variable sound speed and material density, respectively. In this paper we present ... More

Comparison of Radio Propagation Models for Long Term Evolution (LTE) NetworkOct 07 2011This paper concerns about the radio propagation models used for the upcoming 4th Generation (4G) of cellular networks known as Long Term Evolution (LTE). The radio wave propagation model or path loss model plays a very significant role in planning of ... More

Bell inequalities for the simplest exclusivity graphJun 23 2011Feb 15 2013Which is the simplest logical structure for which there is quantum nonlocality? We show that there are only three bipartite Bell inequalities with quantum violation associated with the simplest graph of relationships of exclusivity with a quantum-classical ... More

An approach to improving edge detection for facial and remotely sensed images using vector order statisticsMar 19 2015This paper presents an improved edge detection algorithm for facial and remotely sensed images using vector order statistics. The developed algorithm processes colored images directly without been converted to gray scale. A number of the existing algorithms ... More

Augmented Zagreb Index of Polyhex NanotubesMar 09 2016Jun 01 2016Augmented Zagreb Index is a newly defined degree based topological invariant which has been well established for its better correlation properties and is defined as $AZI(G)= \sum_{uv\in E(G)}(\frac{d_G (u)d_G (v)}{d_G (u)+ d_G (v)-2})^3 $, where $E(G)$ ... More

Optical Properties of Pure and Mixed Germanium and Silicon Quantum DotsFeb 17 2016We study the optical properties of hydrogen passivated silicon, germanium and mixed Ge/Si core/shell quantum dots (QDs) using high accuracy Density Functional Theory (DFT) and time-dependent DFT (TDFT). We employ the hybrid DFT functional of Becke, Lee, ... More

D-CFPR: D numbers extended consistent fuzzy preference relationsMar 23 2014How to express an expert's or a decision maker's preference for alternatives is an open issue. Consistent fuzzy preference relation (CFPR) is with big advantages to handle this problem due to it can be construed via a smaller number of pairwise comparisons ... More

Systematic spatial and stoichiometric screening towards understanding the surface of ultrasmall oxygenated silicon nanocrystalApr 12 2016In most of the realistic ab initio and model calculations which have appeared on the emission of light from Si nanocrystals, the role of surface oxygen has been usually ignored, underestimated or completely ruled out. We investigate theoretically, by ... More

Noise-robust preparation contextuality shared between any number of observers via unsharp measurementsApr 22 2019Multiple observers who independently harvest nonclassical correlations from a single physical system share the system's ability to enable quantum correlations. We show that any number of independent observers can share the preparation contextual outcome ... More

Evaluative Assessment of an X-band Microstrip Patch Antenna for Wireless SystemsSep 02 2017Microstrip patch antennas (MPAs) are rapidly gaining more attention due to the proliferation of communication devices and systems with frequencies becoming more suitable for the size and performance of this type of antenna. Due to recent advancements ... More

q-LMF: Quantum Calculus-based Least Mean Fourth AlgorithmDec 04 2018Dec 20 2018Channel estimation is an essential part of modern communication systems as it enhances the overall performance of the system. In recent past a variety of adaptive learning methods have been designed to enhance the robustness and convergence speed of the ... More

Sip4J: Statically inferring permission-based specifications for sequential Java programsFeb 14 2019In mainstream programming languages such as Java, a common way to enable concurrency is to manually introduce explicit concurrency constructs such as multi-threading. Given the intricacies in creating these constructs, it is very likely for a programmer ... More

Steering is an essential feature of non-locality in quantum theoryJun 16 2015Oct 12 2018A physical theory is called non-local when observers can produce instantaneous effects over distant systems. Non-local theories rely on two fundamental effects: local uncertainty relations and steering of physical states at a distance. In quantum mechanics, ... More

Robust surface plasmon polaritons on gyrotropic interfacesFeb 24 2019Unidirectional surface plasmon polaritons (SPPs) at the interface between a gyrotropic medium and a simple medium are studied in a newly-recognized frequency regime wherein the SPPs form narrow, beam-like patterns due to hyperbolic dispersion. The SPP ... More

Development of Video Frame Enhancement Technique Using Pixel Intensity AnalysisFeb 13 2019This paper developed a brightness enhancement technique for video frame pixel intensity improvement. Frames extracted from the six sample video data used in this work were stored in the form of images in a buffer. Noise was added to the extracted image ... More

Geo-SAGE: A Geographical Sparse Additive Generative Model for Spatial Item RecommendationMar 12 2015With the rapid development of location-based social networks (LBSNs), spatial item recommendation has become an important means to help people discover attractive and interesting venues and events, especially when users travel out of town. However, this ... More

Alterations in Structural Correlation Networks with Prior Concussion in Collision-Sport AthletesApr 18 2019Several studies have used structural correlation networks, derived from anatomical covariance of brain regions, to analyze neurologic changes associated with multiple sclerosis, schizophrenia and breast cancer [1][2]. Graph-theoretical analyses of human ... More

On Nonlinear Evolutions of the Intense, Short Laser Pulse in the Under-Dense PlasmaJul 27 2016Apr 25 2018Nonlinear evolutions of an ultra-intense, short laser pulse due to the wake excitation inside the plasma are studied by means of detailed Particle-In-Cell (PIC) simulations and comprehensive analyses. Pulse lengths both longer and shorter than the plasma ... More

InP/InAsP Nanowire-based Spatially Separate Absorption and Multiplication Avalanche PhotodetectorsJun 03 2017Avalanche photodetectors (APDs) are key components in optical communication systems due to their increased photocurrent gain and short response time as compared to conventional photodetectors. A detector design where the multiplication region is implemented ... More

Partially ferromagnetic electromagnet for trapping and cooling neutral atoms to quantum degeneracyJul 06 2005Jul 10 2005We have developed a compact partially ferromagnetic electromagnet to produce a Ioffe-Pritchard trap for neutral atoms. Our structure permits strong magnetic confinement with low power consumption. Compared to the previous iron-core electromagnet, it allows ... More

THz-Pump and X-Ray-Probe Sources Based on an Electron LinacNov 20 2017We describe a compact THz-pump and X-ray-probe beamline, based on an electron linac, for ultrafast time-resolved diffraction applications. Two high-energy electron ($\gamma>50$) bunches, $5~$ns apart, impinge upon a single-foil or a multifoil radiator ... More

Beam Characterization at the KAERI UED BeamlineOct 07 2016The UED (ultrafast electron diffraction) beamline of the KAERI's (the Korea Atomic Energy Research Institute's) WCI (World Class Institute) Center has been successfully commissioned. We have measured the beam emittance by using the quadrupole scan technique ... More

A Compact Solid State Detector for Small Angle Particle TrackingNov 09 1999MIDAS (MIcrostrip Detector Array System) is a compact silicon tracking telescope for charged particles emitted at small angles in intermediate energy photonuclear reactions. It was realized to increase the angular acceptance of the DAPHNE detector and ... More

Physics Potential of the ICAL detector at the India-based Neutrino Observatory (INO)May 27 2015May 09 2017The upcoming 50 kt magnetized iron calorimeter (ICAL) detector at the India-based Neutrino Observatory (INO) is designed to study the atmospheric neutrinos and antineutrinos separately over a wide range of energies and path lengths. The primary focus ... More

Physics Potential of the ICAL detector at the India-based Neutrino Observatory (INO)May 27 2015The upcoming 50 kt magnetized iron calorimeter (ICAL) detector at the India-based Neutrino Observatory (INO) is designed to study the atmospheric neutrinos and antineutrinos separately over a wide range of energies and path lengths. The primary focus ... More