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Results for "Hui Wang"

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First-principles investigation of the effect of substitution and surface adsorption on magnetostrictive properties of Fe-Ga alloysOct 10 2018Materials with large magnetostriction are widely used in sensors, actuators, micro electromechanical systems, and energy-harvesters. Binary Fe-Ga alloys (Galfenol) are the most promising rare-earth-free candidates combining numerous advantages such as ... More
Simplified Hierarchical Recurrent Encoder-Decoder for Building End-To-End Dialogue SystemsSep 08 2018As a generative model for building end-to-end dialogue systems, Hierarchical Recurrent Encoder-Decoder (HRED) consists of three layers of Gated Recurrent Unit (GRU), which from bottom to top are separately used as the word-level encoder, the sentence-level ... More
Efficient Authentication of Outsourced String Similarity SearchMar 08 2016Cloud computing enables the outsourcing of big data analytics, where a third party server is responsible for data storage and processing. In this paper, we consider the outsourcing model that provides string similarity search as the service. In particular, ... More
A question of Norton-Sullivan in the analytic caseSep 19 2018In 1996, A. Norton and D. Sullivan asked the following question: If $f:\mathbb{T}^2\rightarrow\mathbb{T}^2$ is a diffeomorphism, $h:\mathbb{T}^2\rightarrow\mathbb{T}^2$ is a continuous map homotopic to the identity, and $h f=T_{\rho} h$ where $\rho\in\mathbb{R}^2$ ... More
Another Look at DWD: Thrifty Algorithm and Bayes Risk Consistency in RKHSAug 24 2015Distance weighted discrimination (DWD) is a margin-based classifier with an interesting geometric motivation. DWD was originally proposed as a superior alternative to the support vector machine (SVM), however DWD is yet to be popular compared with the ... More
Geometric Methods for Stochastic Dynamical SystemsNov 02 2018Noisy fluctuations are ubiquitous in complex systems. They play a crucial or delicate role in the dynamical evolution of gene regulation, signal transduction, biochemical reactions, among other systems. Therefore, it is essential to consider the effects ... More
Closed geodesics on positively curved spheres $S^n$ with Finsler metric induced by $(\mathbb{R}P^n,F)$Apr 17 2018It's well known that the n-sphere $S^n$ is the universal double covering of the $n$-dimensional real projective space $\mathbb{R}P^n$ and then any Finsler metric on $\mathbb{R}P^n$ induces a Finsler metric of $S^n$. In this paper, we prove that for every ... More
Dynamic importance sampling for uniformly recurrent markov chainsMar 22 2005Importance sampling is a variance reduction technique for efficient estimation of rare-event probabilities by Monte Carlo. In standard importance sampling schemes, the system is simulated using an a priori fixed change of measure suggested by a large ... More
Correspondances de Howe pour les groupes des similitudesJun 12 2012Jul 08 2012In this paper, we give a way to define the Howe correspondences for the similitudes groups over p-adic fields by following the work of Brooks Roberts on the groups (GSp, GO).
On the convergence from discrete to continuous time in an optimal stopping problemMay 12 2005We consider the problem of optimal stopping for a one-dimensional diffusion process. Two classes of admissible stopping times are considered. The first class consists of all nonanticipating stopping times that take values in [0,\infty], while the second ... More
Sparse Distance Weighted DiscriminationJan 24 2015Distance weighted discrimination (DWD) was originally proposed to handle the data piling issue in the support vector machine. In this paper, we consider the sparse penalized DWD for high-dimensional classification. The state-of-the-art algorithm for solving ... More
On a question of Drinfeld on the Weil representation I: the finite field caseMay 22 2012Dec 31 2013Let F be a finite field of odd cardinality, and let G= GL2(F). The group G \times G \times G acts on F^2 \otimes F^2 \otimes F^2 via symplectic similitudes, and has a natural Weil representation. Answering a question rasised by V. Drinfeld, we decompose ... More
Some new gradient estimates for two nonlinear parabolic equations under Ricci flowJan 06 2017In this paper, by maximum principle and cutoff function, we investigate gradient estimates for positive solutions to two nonlinear parabolic equations under Ricci flow. The related Harnack inequalities are deduced. An result about positive solutions on ... More
Weil representations over finite fields and Shintani liftMar 21 2013Let Sp_V(F) be the group of isometries of a symplectic vector space V over a finite field F of odd cardinality. The group Sp_V(F) possesses distinguished representations--- the Weil representations. We know that they are compatible with base change in ... More
Effects of Parton Intrinsic Transverse Momentum on Photon Production in Hard-Scattering ProcessesFeb 20 1998May 01 1998We calculate the photon production cross section arising from the hard scattering of partons in nucleon-nucleon collisions by taking into account the intrinsic parton transverse momentum distribution and the next-to-leading-order contributions. As first ... More
The Quark Propagator in a Truncation Scheme beyond the Rainbow ApproximationNov 05 2015Nov 11 2015The quark propagator is studied under a truncation scheme beyond the rainbow approximation by dressing the quark-gluon vertex non-perturbatively. It is found that, in the chiral limit with dynamical symmetry breaking, the dynamical quark mass and the ... More
Neural Network Renormalization GroupFeb 08 2018Dec 19 2018We present a variational renormalization group (RG) approach using a deep generative model based on normalizing flows. The model performs hierarchical change-of-variables transformations from the physical space to a latent space with reduced mutual information. ... More
Classification of the Super-conducting order parameters under the point group symmetry for a multi-band system: application to LaOFeAsMay 06 2008All the possible super-conducting order parameters for the LaOFeAs system are classified by their transformation under the complete crystal symmetry. The general forms of the super-conducting gap functions for each class are discussed. We find that the ... More
Transparency and amplification in a hybrid system of mechanical resonator and circuit QEDMay 23 2014We theoretically study the transparency and amplification of a weak probe field applied to the cavity in hy- brid systems formed by a driven superconducting circuit QED system and a mechanical resonator, or a driven optomechanical system and a superconducting ... More
Transits of Planets with Small Intervals in Circumbinary SystemsJul 03 2014Transit times around single stars can be described well by a linear ephemeris. However, transit times in circumbinary systems are influenced both by the gravitational perturbations and the orbital phase variations of the central binary star. Adopting ... More
Polarization of Quasars: Rotated and Funnel-shaped OutflowDec 13 2006Polarization is a useful probe to investigate the geometries and dynamics of outflow in BAL QSOs. We perform a Monte-Carlo simulation to calculate the polarization produced by resonant and electron scattering in BALR. We find: 1)A rotated and funnel-shaped ... More
Doubly-charged scalar in rare decays of $B_c$ mesonFeb 09 2018In this paper, we study the lepton number violation processes of $B_c$ meson induced by possible doubly-charged scalars. Both the three-body decay channels and the four-body decay channels are considered. For the former, $Br\times\left(\frac{s_\Delta ... More
Polarization of Quasars: Electron Scattering in the Broad Absorption Line RegionAug 02 2005It is widely accepted that the broad absorption line region (BALR) exists in most (if not all) quasars with a small covering factor. Recent works showed that the BALR is optically thick to soft and even medium energy X-rays, with a typical hydrogen column ... More
On circumcenter mappings induced by nonexpansive operatorsNov 28 2018We introduce the circumcenter mapping induced by a set of (usually nonexpansive) operators. One prominent example of a circumcenter mapping is the celebrated Douglas--Rachford splitting operator. Our study is motivated by the Circumcentered--Douglas--Rachford ... More
Importance Sampling for Multiscale DiffusionsJul 27 2011We construct importance sampling schemes for stochastic differential equations with small noise and fast oscillating coefficients. Standard Monte Carlo methods perform poorly for these problems in the small noise limit. With multiscale processes there ... More
On Midrange Periodicities in Solar Radio Flux and Sunspot AreasNov 12 2018Using the Hilbert-Huang transform technique, we investigate the midrange periodicities in solar radio flux at 2800 MHz (F10.7) and sunspot areas (SAs) from February 1, 1947 to September 30, 2016. The following prominent results are found: (1) The quasi-periodic ... More
On a transformation between distributions obeying the principle of a single big jumpNov 06 2014Beck et al. (2013) introduced a new distribution class J which contains many heavy-tailed and light-tailed distributions obeying the principle of a single big jump. Using a simple transformation which maps heavy-tailed distributions to light-tailed ones, ... More
Large-scale Reservoir Simulations on IBM Blue Gene/QJun 02 2016This paper presents our work on simulation of large-scale reservoir models on IBM Blue Gene/Q and studying the scalability of our parallel reservoir simulators. An in-house black oil simulator has been implemented. It uses MPI for communication and is ... More
Magnetic dipole-dipole interaction induced by the electromagnetic fieldOct 23 2017Jan 18 2018We give a derivation for the indirect interaction between two magnetic dipoles induced by the quantized electromagnetic field. It turns out that the interaction between permanent dipoles directly returns to the classical form; the interaction between ... More
Identifying the Fake Base Station: A Location Based ApproachJun 14 2018Fake base station (FBS) attack is a great security challenge to wireless user equipment (UE). During the cell selection stage, the UE receives multiple synchronization signals (SSs) from multiple nearby base stations (BSs), and then synchronizes itself ... More
Some positive conclusions related to the Embrechts-Goldie' conjectureSep 04 2016Jul 30 2017In this paper, we give some conditions, under which, if an infinitely divisible distribution supported on $[0,\infty)$ belongs to the intersection of exponential distribution class $\mathcal{L}(\gamma)$ for some $\gamma\ge0$ and generalised subexponential ... More
Polarization of Quasars: Resonant Line Scattering in the Broad Absorption Line RegionSep 17 2006Recent works showed that the absorbing material in broad absorption line (BAL) quasars is optically thick to major resonant absorption lines. This material may contribute significantly to the polarization in the absorption lines. In this paper, we present ... More
Ghost spins and novel quantum critical behavior in a spin chain with local bond-deformationAug 07 1998We study the boundary impurity-induced critical behavior in an integrable SU(2)-invariant model consisting of an open Heisenberg chain of arbitrary spin-$S$ (Takhatajian-Babujian model) interacting with an impurity of spin $\vec{S'}$ located at one of ... More
Natural selection on human Y chromosomesOct 22 2013The paternally inherited Y chromosome has been widely used in population genetic studies to understand relationships among human populations. Our interpretation of Y chromosomal evidence about population history and genetics has rested on the assumption ... More
Compressed ghost edge imagingFeb 22 2019In this paper, we propose an advanced framework of ghost edge imaging, named compressed ghost edge imaging (CGEI). In the scheme, a set of structured speckle patterns with pixel shifting are illuminated on an unknown object, and the output is collected ... More
Multi-Agent Distributed Optimization via Inexact Consensus ADMMFeb 25 2014Sep 11 2014Multi-agent distributed consensus optimization problems arise in many signal processing applications. Recently, the alternating direction method of multipliers (ADMM) has been used for solving this family of problems. ADMM based distributed optimization ... More
Lipschitz Equivalence of Self-Similar Sets: Algebraic and Geometric PropertiesMar 02 2013In this paper we provide an up-to-date survey on the study of Lipschitz equivalence of self-similar sets. Lipschitz equivalence is an important property in fractal geometry because it preserves many key properties of fractal sets. A fundamental result ... More
Derivation of the effective Chiral Lagrangian for pseudoscalar, scalar, vector and axial-vector mesons from QCDJan 26 2017A previous formal derivation of the effective chiral Lagrangian for low-lying pseudoscalar mesons from first-principles QCD without approximations [Wang et al., Phys. Rev. D61, (2000) 54011] is generalized to further include scalar, vector, and axial-vector ... More
Radially Excited States of $η_c$Dec 22 2014In the framework of chiral quark model, the mass spectrum of $\eta_c(ns) (n=1,...,6)$ is studied with Gaussian expansion method. With the wave functions obtained in the study of mass spectrum, the open flavor two-body strong decay widths are calculated ... More
Isotopic ratio, isotonic ratio, isobaric ratio and Shannon information uncertaintySep 11 2014The isoscaling and the isobaric yield ratio difference (IBD) probes, which both are constructed by yield ratio of fragment, provide cancelation of parameters. The information entropy theory is introduced to explain the physical meaning of the isoscaling ... More
Combating the Control Signal Spoofing Attack in UAV SystemsApr 18 2018Unmanned aerial vehicle (UAV) system is vulnerable to the control signal spoofing attack due to the openness of the wireless communications. In this correspondence, a physical layer approach is proposed to combat the control signal spoofing attack, i.e,. ... More
Self-similar subsets of the Cantor setJun 20 2014In this paper, we study the following question raised by Mattila in 1998: what are the self-similar subsets of the middle-third Cantor set $\C$? We give criteria for a complete classification of all such subsets. We show that for any self-similar subset ... More
Measuring robustness of community structure in complex networksMar 27 2015The theory of community structure is a powerful tool for real networks, which can simplify their topological and functional analysis considerably. However, since community detection methods have random factors and real social networks obtained from complex ... More
Time-optimal rotation of a spin 1/2: application to the NV center spin in diamondFeb 01 2011We study the applicability of the time optimal bang-bang control designed for spin-1/2 [U. Boscain and P. Mason, J. Math. Phys. {\bf 47}, 062101 (2006)] to the rotation of the electron spin of a nitrogen-vacancy (NV) center in diamond. The spin of the ... More
A Stochastic Pitchfork Bifurcation in Most Probable Phase PortraitsJan 11 2018We study stochastic bifurcation for a system under multiplicative stable Levy noise (an important class of non-Gaussian noise), by examining the qualitative changes of equilibrium states in its most probable phase portraits. We have found some peculiar ... More
k-DAG Based Lifetime Aware Data Collection in Wireless Sensor NetworksNov 13 2013Wireless Sensor Networks need to be organized for efficient data collection and lifetime maximization. In this paper, we propose a novel routing structure, namely k-DAG, to balance the load of the base station's neighbours while providing the worst-case ... More
On circumcenters of finite sets in Hilbert spacesJul 05 2018A well-known object in classical Euclidean geometry is the circumcenter of a triangle, i.e., the point that is equidistant from all vertices. The purpose of this paper is to provide a systematic study of the circumcenter of sets containing finitely many ... More
Convolution and convolution-root properties of long-tailed distributionsJan 29 2015Sep 28 2015We obtain a number of new general properties, related to the closedness of the class of long-tailed distributions under convolutions, that are of interest themselves and may be applied in many models that deal with "plus" and/or "max" operations on heavy-tailed ... More
Some aspects of global Lambda polarization in heavy-ion collisionsDec 07 2017Large orbital angular momentum can be generated in non-central heavy-ion collisions, and part of it is expected to be converted into final particle's polarization due to the spin-orbit coupling. Within the framework of A Multi-Phase Transport (AMPT) model, ... More
Dissociation of Liquid Water on Defective Rutile TiO2 (110) Surfaces Using Ab-Initio Molecular Dynamics SimulationsMar 28 2018In order to obtain a comprehensive understanding of both thermodynamics and kinetics of water dissociation on TiO2, the reactions between liquid water and perfect and defective rutile TiO2 (110) surfaces were investigated using ab initio molecular dynamics ... More
Concordance and the Smallest Covering Set of Preference OrderingsSep 15 2016Preference orderings are orderings of a set of items according to the preferences (of judges). Such orderings arise in a variety of domains, including group decision making, consumer marketing, voting and machine learning. Measuring the mutual information ... More
Efficient traveltime solution of the acoustic TI eikonal equationNov 17 2013Numerical solutions of the eikonal (Hamilton-Jacobi) equation for transversely isotropic (TI) media are essential for imaging and traveltime tomography applications. Such solutions, however, suffer from the inherent higher-order nonlinearity of the TI ... More
Shear Viscosity to Entropy Density Ratio in Higher Derivative Gravity with Momentum DissipationMay 24 2016Sep 15 2016We investigate $\eta/s$ in linear scalar fields modified Gauss-Bonnet theory that breaks translation invariance. We first calculate $\eta/s$ both analytically and numerically and show its relationship with temperature in log-log plot. Our results show ... More
Integrity Authentication for SQL Query Evaluation on Outsourced Databases: A SurveyAug 24 2018Spurred by the development of cloud computing, there has been considerable recent interest in the Database-as-a-Service (DaaS) paradigm. Users lacking in expertise or computational resources can outsource their data and database management needs to a ... More
Optimal Power Allocation for Artificial Noise under Imperfect CSI against Spatially Random EavesdroppersJan 06 2016In this correspondence, we study the secure multiantenna transmission with artificial noise (AN) under imperfect channel state information in the presence of spatially randomly distributed eavesdroppers. We derive the optimal solutions of the power allocation ... More
Bulk viscosity in nuclear and quark matter: A short reviewFeb 07 2007Mar 05 2007The history and recent progresses in the study of bulk viscosity in nuclear and quark matter are reviewed. The constraints from baryon number conservation and electric neutrality in quark matter on particle densities and fluid velocity divergences are ... More
Uncover the Black Box of Machine Learning Applied to Quantum Problem by an Introspective Learning ArchitectureJan 30 2019Feb 02 2019Recently there is an increasing interest in applying machine learning algorithm to physics problems. These applications provide new platforms to challenge the critical issue of how to uncover the black box of machine learning because there always exists ... More
Dynamic importance sampling for queueing networksOct 24 2007Importance sampling is a technique that is commonly used to speed up Monte Carlo simulation of rare events. However, little is known regarding the design of efficient importance sampling algorithms in the context of queueing networks. The standard approach, ... More
Time-varying Bang-bang Property of Minimal Controls for Approximately Null-controllable Heat EquationsMar 02 2017In this paper, optimal time control problems and optimal target control problems are studied for the approximately null-controllable heat equations. Compared with the existed results on these problems, the boundary of control variables are not constants ... More
Local Aronson-Benolan type gradient estimates for the porous medium type equation under RicciJan 09 2017In this paper, we investigate some new local Aronson-B\'enilan type gradient estimates for positive solutions of the porous medium equation $$ u_{t}=\Delta u^{m}, $$ under Ricci flow. As application, the related Harnack inequalities are derived. Our results ... More
Fine-grained visual recognition with salient feature detectionAug 12 2018Aug 14 2018Computer vision based fine-grained recognition has received great attention in recent years. Existing works focus on discriminative part localization and feature learning. In this paper, to improve the performance of fine-grained recognition, we try to ... More
OR-Benchmark: An Open and Reconfigurable Digital Watermarking Benchmarking FrameworkMay 31 2015Jun 05 2015Benchmarking digital watermarking algorithms is not an easy task because different applications of digital watermarking often have very different sets of requirements and trade-offs between conflicting requirements. While there have been some general-purpose ... More
Impedance spectroscopy and its applicationJun 21 2014Representation of dielectric properties by impedance spectroscopy (IS) is analyzed carefully in this paper. It is found that IS is not a good tool to describe a uniform system because a pseudo relaxation peaks exists at low frequency limit corresponding ... More
Lagrangian Bonnet pairs in complex space formsMar 30 2015In this paper we first give a Bonnet theorem for conformal Lagrangian surfaces in complex space forms, then we show that any compact Lagrangian surface in the complex space form admits at most one other global isometric Lagrangian surface with the same ... More
Baryon number conservation and enforced electric charge neutrality for bulk viscosity in quark matterFeb 05 2007Apr 06 2007General constraints on fluid velocity divergences for particles in quark matter are derived from baryon number conservation and enforced electric charge neutrality. A new oscillation pattern in three-flavor normal quark matter satisfying these conditions ... More
Resonance Identities for Closed Characteristics on Compact Star-shaped Hypersurfaces in ${\bf R}^{2n}$Aug 16 2013Mar 15 2014Resonance relations among periodic orbits on given energy hypersurfaces are very important for getting deeper understanding of the dynamics of the corresponding Hamiltonian systems. In this paper, we establish two new resonance identities for closed characteristics ... More
Derivation of the gap and Bethe-Salpeter equations at large $N_c$ limit and symmetry preserving truncationsJun 10 2017Oct 12 2017We develop a framework for deriving Dyson-Schwinger Equations (DSEs) and Bethe-Salpeter Equation (BSE) in QCD at large $N_c$ limit. The starting point is a modified form (with auxiliary fields) of QCD generating functional. This framework provides a natural ... More
Quadruple-enhanced four-wave mixing in nanometer plasmonic hotspots: classical theory and experimentsApr 06 2017Efficiency is a critical factor limiting the applications of nonlinear plasmonic devices. We show by theory and experiments that high efficiency four-wave mixing (FWM) is achieved in nanometer size plasmonic hotspots, which open up opportunities for nanoscale ... More
Analysis of the scalar, axialvector, vector, tensor doubly charmed tetraquark states with QCD sum rulesOct 08 2017May 07 2018In this article, we construct the axialvector-diquark-axialvector-antidiquark type currents to interpolate the scalar, axialvector, vector, tensor doubly charmed tetraquark states, and study them with QCD sum rules systematically by carrying out the operator ... More
What is the best planar cavity for maximizing coherent exciton-photon couplingAug 08 2017We compare alternative planar cavity structures for strong exciton$-$photon coupling, where the conventional distributed Bragg reflector (DBR) and three unconventional types of cavity mirrors$-$ air/GaAs DBR, Tamm $-$ plasmon mirror and sub$-$wavelength ... More
Bifurcation in mean phase portraits for stochastic dynamical systems with multiplicative Gaussian noiseNov 02 2018We investigate the bifurcation phenomena for stochastic systems with multiplicative Gaussian noise, by examining qualitative changes in mean phase portraits. Starting from the Fokker-Planck equation for the probability density function of solution processes, ... More
Object Activity Scene Description, Construction and RecognitionMay 01 2018Action recognition is a critical task for social robots to meaningfully engage with their environment. 3D human skeleton-based action recognition is an attractive research area in recent years. Although, the existing approaches are good at action recognition, ... More
Secrecy Beamforming for SWIPT MISO Heterogeneous Cellular NetworksJun 28 2018In this paper, we consider the secure transmission design for a multiple-input single-output Femtocell overlaid with a Macrocell in co-channel deployment. The Femtocell base station sends confidential messages to information receiving Femtocell users ... More
The $B_c$ Decays to $P$-wave Charmonium by Improved Bethe-Salpeter ApproachJul 03 2011Feb 06 2012We re-calculate the exclusive semileptonic and nonleptonic decays of $B_c$ meson to a $P$-wave charmonium in terms of the improved Bethe-Salpeter (B-S) approach, which is developed recently. Here the widths for the exclusive semileptonic and nonleptonic ... More
Symmetry based Structure Entropy of Complex NetworksSep 30 2007Precisely quantifying the heterogeneity or disorder of a network system is very important and desired in studies of behavior and function of the network system. Although many degree-based entropies have been proposed to measure the heterogeneity of real ... More
Analytical Results For The Steady State Of Traffic Flow Models With Stochastic DelayApr 24 1998Exact mean field equations are derived analytically to give the fundamental diagrams, i.e., the average speed - car density relations, for the Fukui-Ishibashi one-dimensional traffic flow cellular automaton model of high speed vehicles $(v_{max}=M>1) ... More
Generation of higher-order rogue waves from multi-breathers by double degeneracy in an optical fibreApr 06 2017In this paper, we construct a special kind of breather solution of the nonlinear Schr\"{o}dinger (NLS) equation, the so-called breather-positon ({\it b-positon} for short), which can be obtained by taking the limit $\lambda_{j}$ $\rightarrow$ $\lambda_{1}$ ... More
Stable Xenon Nitride at High PressuresJan 16 2015Nitrides in many ways are fascinating since they often appear as superconductors, high energy density and hard materials. Though there exist a large variety of nitrides, noble gas nitrides are long missing in nature. Pursuit of noble gas nitrides has ... More
Most Probable Evolution Trajectories in a Genetic Regulatory System Excited by Stable Lévy NoiseOct 09 2018Jan 28 2019We study the most probable trajectories of the concentration evolution for the transcription factor activator in a genetic regulation system, with non-Gaussian stable L\'evy noise in the synthesis reaction rate taking into account. We calculate the most ... More
Investigations of supernovae and supernova remnants in the era of SKAJan 19 2015Two main physical mechanisms are used to explain supernova explosions: thermonuclear explosion of a white dwarf(Type Ia) and core collapse of a massive star (Type II and Type Ib/Ic). Type Ia supernovae serve as distance indicators that led to the discovery ... More
Dictionary learning based image enhancement for rarity detectionMay 04 2013Sep 13 2016Image enhancement is an important image processing technique that processes images suitably for a specific application e.g. image editing. The conventional solutions of image enhancement are grouped into two categories which are spatial domain processing ... More
Hydrogen as a Source of Flux Noise in SQUIDsSep 19 2017Feb 22 2018Superconducting qubits are hampered by flux noise produced by surface spins from a variety of microscopic sources. Recent experiments indicated that hydrogen (H) atoms may be one of those sources. Using density functional theory calculations, we report ... More
The Strong Decays of Orbitally Excited $B^{*}_{sJ}$ Mesons by Improved Bethe-Salpeter MethodFeb 06 2012We calculate the masses and the strong decays of orbitally excited states $B_{s0}$, $B'_{s1}$, $B_{s1}$ and $B_{s2}$ by the improved Bethe-Salpeter method. The predicted masses of $B_{s0}$ and $B'_{s1}$ are $M_{B_{s0}}=5.723\pm0.280 {\rm GeV}$, $M_{B'_{s1}}=5.774\pm0.330 ... More
Dual User Selection for Security Enhancement in Uplink Multiuser SystemsAug 19 2016This letter proposes a novel dual user selection scheme for uplink transmission with multiple users, where a jamming user and a served user are jointly selected to improve the secrecy performance. Specifically, the jamming user transmits jamming signal ... More
Stochastic Acceleration in the Western Hotspot of Pictor ANov 29 2007Dec 19 2007Chandra's high resolution observations of radio galaxies require a revisit of the relevant electron acceleration processes. Although the diffusive shock particle acceleration model may explain spectra of spatially unresolved sources, it encounters difficulties ... More
Predicting the epidemic threshold of the susceptible-infected-recovered modelDec 16 2015Researchers have developed several theoretical methods for predicting epidemic thresholds, including the mean-field like (MFL) method, the quenched mean-field (QMF) method, and the dynamical message passing (DMP) method. When these methods are applied ... More
Energy-Efficient Transmission Design in Non-Orthogonal Multiple AccessJun 08 2016Non-orthogonal multiple access (NOMA) is considered as a promising technology for improving the spectral efficiency (SE) in 5G. In this correspondence, we study the benefit of NOMA in enhancing energy efficiency (EE) for a multi-user downlink transmission, ... More
TSUFLIND-EnKF inversion model applied to tsunami deposits for estimation of transient flow depth and speed with quantified uncertaintiesJan 15 2016Jan 18 2016Tsunami deposits are recordings of tsunami events that contain information about flow conditions. Deciphering quantitative information from tsunami deposits is especially important for analyzing paleo-tsunami events in which deposits comprise the only ... More
Secure Short-Packet Communications for Mission-Critical IoT ApplicationsMar 04 2019In pervasive Internet of Things (IoT) applications, the use of short packets is expected to meet the stringent latency requirement in ultra-reliable low-latency communications; however, the incurred security issues and the impact of finite blocklength ... More
Invariance of Quantum Rings under Ordinary Flops I: Quantum corrections and reduction to local modelsSep 26 2011Feb 14 2016This is the first of a sequence of papers proving the quantum invariance under ordinary flops over an arbitrary smooth base. In this first part, we determine the defect of the cup product under the canonical correspondence and show that it is corrected ... More
Flops, motives and invariance of quantum ringsAug 15 2006May 16 2007For ordinary flops, the correspondence defined by the graph closure is shown to give equivalence of Chow motives and to preserve the Poincar\'e pairing. In the case of simple ordinary flops, this correspondence preserves the big quantum cohomology ring ... More
On Content-centric Wireless Delivery NetworksOct 20 2014The flux of social media and the convenience of mobile connectivity has created a mobile data phenomenon that is expected to overwhelm the mobile cellular networks in the foreseeable future. Despite the advent of 4G/LTE, the growth rate of wireless data ... More
Midterm Periodicity Analysis of the Mount Wilson Magnetic Indices Using the Synchrosqueezing TransformMar 21 2018A novel time--frequency technique, called the synchrosqueezing transform (SST), is used to investigate the midterm periodic variations of magnetic fields on the solar surface. The Magnetic Plage Strength Index (MPSI) and the Mount Wilson Sunspot Index ... More
Global $Λ$ polarization in heavy-ion collisions from a transport modelApr 05 2017Nov 06 2017The polarizations of $\Lambda$ and $\bar{\Lambda}$ hyperons are important quantities in extracting the fluid vorticity of the strongly coupled quark gluon plasma and the magnitude of the magnetic field created in off-central heavy-ion collisions, through ... More
d-Wave holographic superconductors with backreaction in external magnetic fieldsSep 19 2012Sep 26 2012We study the d-wave holographic superconductors (the d-wave model proposed in [arXiv:1003.2991[hep-th]]) immersed in constant external magnetic fields by using the analytic matching method and numerical computation. In the probe limit, we calculate the ... More
Multiple Antennas Secure Transmission under Pilot Spoofing and Jamming AttackJan 12 2018Transmitter-side channel state information (CSI) of the legitimate destination plays a critical role in physical layer secure transmissions. However, channel training procedure is vulnerable to the pilot spoofing attack (PSA) or pilot jamming attack (PJA) ... More
A DCT And SVD based Watermarking Technique To Identify TagFeb 10 2015With the rapid development of the multimedia,the secure of the multimedia is get more concerned. as far as we know , Digital watermarking is an effective way to protect copyright. The watermark must be generally hidden does not affect the quality of the ... More
Wireless Multicast for Zoomable Video StreamingMay 08 2015Zoomable video streaming refers to a new class of interactive video applications, where users can zoom into a video stream to view a selected region of interest in higher resolutions and pan around to move the region of interest. The zoom and pan effects ... More
Enhancement of pair correlation in a one-dimensional hybridization modelMar 10 1999We propose an integrable model of one-dimensional (1D) interacting electrons coupled with the local orbitals arrayed periodically in the chain. Since the local orbitals are introduced in a way that double occupation is forbidden, the model keeps the main ... More
Two-soliton solution for the derivative nonlinear Schrödinger equation with nonvanishing boundary conditionsFeb 20 2006An explicit two-soliton solution for the derivative nonlinear Schr\"odinger equation with nonvanishing boundary conditions is derived, demonstrating details of interactions between two bright solitons, two dark solitons, as well as one bright soliton ... More