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Results for "Xiang Liu"

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The Complete Weight Enumerator of A Class of Linear CodesMay 25 2015May 26 2015Linear codes can be employed to construct authentication codes, which is an interesting area of cryptography. The parameters of the authentication codes depend on the complete weight enumerator of the underlying linear codes. In order to obtain an authentication ... More
New $Ω_c^0$ baryons discovered by LHCb as the members of $1P$ and $2S$ statesApr 09 2017Nov 20 2017Inspired by the newly observed $\Omega_c^0$ states at LHCb, we decode their properties by performing an analysis of mass spectrum and decay behavior. Our studies show that the five narrow states, i.e., $\Omega_c(3000)^0$, $\Omega_c(3050)^0$, $\Omega_c(3066)^0$, ... More
Is the newly reported $X(5568)$ a $B\bar{K}$ molecular state?Jul 19 2016Jul 28 2016In this work, we perform a dynamical study of the $B^{(*)}$ and $\bar K$ interaction and show that the newly reported $X(5568)$ or $X(5616)$ cannot be assigned to be an isovector $B\bar{K}$ or $B^*\bar{K}$ molecular state. We continue to investigate the ... More
Predicted charged charmonium-like structures in the hidden-charm dipion decay of higher charmoniaJun 27 2011Aug 04 2011In this work, we predict two charged charmonium-like structures close to the $D^\ast\bar{D}$ and $D^\ast\bar{D}^\ast$ thresholds, where the Initial Single Pion Emission mechanism is introduced in the hidden-charm dipion decays of higher charmonia $\psi(4040)$, ... More
The signal of $Z^\pm(4430)$ in nucleon-antinucleon scatteringJun 05 2008Oct 02 2008We study the production of $Z^\pm(4430)$ at a nucleon-antinucleon scattering experiment. Considering the PANDA experiment to be an ideal platform to explore the production of the charmonium and charmonim-like states, we suggest the forthcoming PANDA experiment ... More
Asymptotic Behavior for a Nematic Liquid Crystal Model with Different Kinematic Transport PropertiesJan 13 2009Oct 29 2010We study the asymptotic behavior of global solutions to hydrodynamical systems modeling the nematic liquid crystal flows under kinematic transports for molecules of different shapes. The coupling system consists of Navier-Stokes equations and kinematic ... More
Q factor in numerical simulations of DPSK with optical delay demodulationApr 01 2003A simple model is used to estimate the Q factor in numerical simulations of differential phase shift keying (DPSK) with optical delay demodulation and balanced detection. It is found that an alternative definition of Q is needed for DPSK in order to have ... More
Predicition for the decay width of a charged state near the $D_s\bar{D}^*/D^*_s\bar{D}$ thresholdJul 26 2013Very recently it was predicted the existence of a charged state near the $D_s\bar{D}^*/D^*_s\bar{D}$ threshold. This state, that we call $Z_{cs}^+$, would be the strange partner of the recently observed $Z_c^\pm(3900)$. Using standard techniques of QCD ... More
QCD sum rule calculation for the charmonium-like structures in the J/psi phi and J/psi omega invariant mass spectraFeb 11 2011May 16 2011Using the QCD sum rules we test if the charmonium-like structure Y(4274), observed in the $J/\psi\phi$ invariant mass spectrum, can be described with a $D_s\bar{D}_{s0}(2317)+h.c.$ molecular current with $J^{PC}=0^{-+}$. We consider the contributions ... More
Parallelizable Algorithms for Optimization Problems with Orthogonality ConstraintsOct 09 2018Oct 24 2018To construct a parallel approach for solving optimization problems with orthogonality constraints is usually regarded as an extremely difficult mission, due to the low scalability of the orthonormalization procedure. However, such demand is particularly ... More
Kapranov's construction of sh Leibniz algebrasAug 26 2018Jun 20 2019Motivated by Kapranov's discovery of an sh Lie algebra structure on the tangent complex of a K\"{a}hler manifold and Chen-Sti\'{e}non-Xu's construction of sh Leibniz algebras associated with a Lie pair, we find a general method to construct sh Leibniz ... More
Possible strange hidden-charm pentaquarks from $Σ_c^{(*)}\bar{D}_s^*$ and $Ξ^{(',*)}_c\bar{D}^*$ interactionsSep 12 2016In a one-boson-exchange model with one-pion and one-eta exchanges, we investigate possible strange hidden-charm pentaquarks produced from the $\Lambda_c\bar{D}_s^*$, $\Sigma_c\bar{D}_s^*$, $\Sigma_c^*\bar{D}_s^*$, $\Xi_c\bar{D}^*$, $\Xi_c'\bar{D}^*$, ... More
Spectrum and Composition of Ultra-high Energy Cosmic Rays from Semi-relativistic HypernovaeNov 27 2011It has been suggested that hypernova remnants, with a substantial amount of energy in semi-relativistic ejecta, can accelerate intermediate mass or heavy nuclei to ultra-high energies and provide sufficient amount of energy in cosmic rays to account for ... More
Global Well-posedness of the Two Dimensional Beris-Edwards System with General Laudau-de Gennes Free EnergyOct 23 2018In this paper, we consider the Beris-Edwards system for incompressible nematic liquid crystal flows. The system under investigation consists of the Navier-Stokes equations for the fluid velocity $\mathbf{u}$ coupled with an evolution equation for the ... More
On the General Ericksen-Leslie System: Parodi's Relation, Well-posedness and StabilityMay 11 2011Oct 03 2012In this paper we investigate the role of Parodi's relation in the well-posedness and stability of the general Ericksen-Leslie system modeling nematic liquid crystal flows. First, we give a formal physical derivation of the Ericksen-Leslie system through ... More
Correlation analysis of radio properties and accretion-disk luminosity for low luminosity AGNsNov 26 2016The correlation between the jet power and accretion disk luminosity is investigated and analyzed with our model for 7 samples of low luminosity active galactic nuclei (LLAGNs). The main results are: (1) the power-law correlation index ($P_{jet} \propto ... More
Heavy molecules and one-$σ/ω$-exchange modelJul 26 2017Dec 20 2017In the framework of the one-boson-exchange model, we explore whether the intermediate and short-range forces from $\sigma/\omega$-exchange can be strong enough to bind heavy molecular states. $\Lambda_cD(\bar{D})$, and $\Lambda_c\Lambda_c(\bar{\Lambda}_c)$ ... More
Possible strange hidden-charm pentaquarks from $Σ_c^{(*)}\bar{D}_s^*$ and $Ξ^{(',*)}_c\bar{D}^*$ interactionsSep 12 2016Aug 15 2017Using the one-boson-exchange model, we investigate the $\Lambda_c\bar{D}_s^*$, $\Sigma_c\bar{D}_s^*$, $\Sigma_c^*\bar{D}_s^*$, $\Xi_c\bar{D}^*$, $\Xi_c'\bar{D}^*$, and $\Xi_c^*\bar{D}^*$ interactions by considering the one-eta-exchange and/or one-pion-exchange ... More
Implication the observed $ψ(3770)\to p\bar{p}π^0$ for studying the $p\bar{p}\to ψ(3770)π^0$ processMay 18 2015Mar 31 2016We study the charmonium $p \bar{p} \to \psi(3770) \pi^0$ reaction using effective lagrangian approach where the contributions from well established $N^*$ states are considered, and all parameters are fixed in the process of $e^+e^- \to p \bar{p}\pi^0$ ... More
Prediction of charmoniumlike structures in the hidden-charm di-eta decays of higher charmoniaSep 18 2013Oct 23 2014Considering the situation that a single chiral partilce, $\eta$, is initially emitted, we study the hidden-charm di-eta decays of charmoniumlike state $Y(4660)$ and the predicted charmonium $\psi(4790)$, i.e., $Y(4660)/\psi(4790) \to J/\psi\eta\eta$ through ... More
Interpretation of $Z_b(10610)$ and $Z_b(10650)$ in the ISPE mechanism and the Charmonium CounterpartAug 12 2012Aug 20 2012The initial single pion emission (ISPE) mechanism is applied to the processes $\Upsilon(5S)\to \pi B^{(*)}\bar{B}^{(*)}$ whose details have been recently reported at ICHEP2012 and we obtain reasonable agreement with Bell's measurements, i.e., we succeed ... More
Explaining the anomalous $Υ(5S)\to χ_{bJ}ω$ decays through the hadronic loop effectJun 26 2014Aug 20 2014In this work, we carry out the study on $\Upsilon(5S)\to \chi_{bJ}\omega$ ($J=0,1,2$) by considering the hadronic loop mechanism. Our results show that the Belle's preliminary data of the branching ratios for $\Upsilon(5S)\to \chi_{bJ}\omega$ can be well ... More
Charged bottomonium-like structures in the hidden-bottom dipion decays of $Υ(11020)$Aug 22 2011Oct 11 2011Under the Initial Single Pion Emission mechanism, we study the hidden-bottom dipion decays of $\Upsilon(11020)$, i.e., $\Upsilon(11020)\to \Upsilon(nS)\pi^+\pi^-$ $(n=1,2,3)$ and $\Upsilon(11020)\to h_b(mP)\pi^+\pi^-$ $(m=1,2)$. We predict explicit sharp ... More
Biaxial-stress driven tetragonal symmetry breaking in and high-temperature ferromagnetic semiconductor from half-metallic CrO2Jun 15 2017Dec 24 2017It is highly desirable to combine the full spin polarization of carriers with modern semiconductor technology for spintronic applications. For this purpose, one needs good crystalline ferromagnetic (or ferrimagnetic) semiconductors with high Curie temperatures. ... More
Newly observed $Λ_c(2860)^+$ at LHCb and its \emph{D}-wave partners $Λ_c(2880)^+$, $Ξ_c(3055)^+$ and $Ξ_c(3080)^+$Feb 14 2017Apr 16 2017New resonance $\Lambda_c(2860)^+$, reported by LHCb, is a key to establish \emph{D}-wave charmed and charmed-strange baryon families. In this work, we first carry out an analysis of mass spectra of the $\lambda$-mode excited charmed and charmed-strange ... More
Hidden-charm molecular pentaquarks and their charm-strange partnersJan 13 2016Apr 06 2016In the framework of one-pion-exchange (OPE) model, we study the hidden-charm and charm-strange molecular pentaquark systems composed of a heavy baryon $(\Sigma_c, \Sigma_c^*)$ and a vector meson $(\bar{K}^*, \bar{D}^*)$, where the S-D mixing effect is ... More
Proposal of searching for the $Υ(6S)$ hadronic decays into $Υ(nS)$ plus $η^{(\prime)}$Jul 24 2018Sep 03 2018In this work, we propose a possible experimental research topic on the $\Upsilon(6S)\to \Upsilon(nS)\eta^{(\prime)}$ ($n=1,2,3$) transitions. Considering the hadronic loop effect from the intermediate $S$-wave $B_{(s)}$ and $B_{(s)}^*$ mesons, we estimate ... More
Can friction of the nova envelope account for the extra angular momentum loss in cataclysmic variables?Nov 21 2018It has been shown that the rate of angular momentum loss (AML) in cataclysmic variables (CVs) below the period gap is about 2.47 times that caused by gravitational radiation, suggesting extra AML mechanism besides gravitational radiation. Several potential ... More
On the White Dwarf Mass Problem of Cataclysmic VariablesSep 22 2016Recent observations show that the white dwarfs (WDs) in cataclysmic Variables (CVs) have an average mass significantly higher than isolated WDs and WDs in post-common envelope binaries (PCEBs), which are thought to the progenitors of CVs. This suggests ... More
Electronic structures of quasi-one-dimensional cuprate superconductors Ba$_2$CuO$_{3+δ}$Jan 31 2019An intact CuO$_2$ plane is widely believed to be a prerequisite for the high-$T_c$ superconductivity in cuprate superconductors. However, an exception may exist in the superconducting Ba$_2$CuO$_{3+\delta}$ materials where CuO chains play a more important ... More
Prediction of anomalous $Υ(5S)\toΥ(1^3D_J)η$ transitionsNov 08 2016In this work, we study the hadronic loop contribution to the $\Upsilon(5S)\to \Upsilon(1^3D_J)\eta$ ($J=1,2,3$) transitions. We predict that the branching ratios of $\Upsilon(5S)\to \Upsilon(1^3D_1)\eta$, $\Upsilon(5S)\to \Upsilon(1^3D_2)\eta$ and $\Upsilon(5S)\to ... More
Reproducing the $Z_c(3900)$ structure through the initial-single-pion-emission mechanismApr 22 2013Aug 15 2013Being stimulated by the recent BESIII observation of a charged charmoniumlike structure $Z_c(3900)$, in this work we study the distributions of the $J/\psi\pi^\pm$ and $\pi^+\pi^-$ invariant mass spectra of the $Y(4260)\to \pi^+\pi^- J/\psi$ decay by ... More
Observation of $e^+e^-\to χ_{c0}ω$ and missing higher charmonium $ψ(4S)$Nov 19 2014Apr 30 2015Stimulated by the recent BESIII observation of a new resonance in $e^+ e^- \to \omega \chi_{c0}$ and by the fact that this state is consistent with our predicted $\psi(4S)$, in this work we estimate the meson loop contribution to $\psi(4S) \to \omega ... More
Neutrino Masses and Mixing from Double Covering of Finite Modular GroupsJul 02 2019We extend the even weight modular forms of modular invariant approach to general integral weight modular forms. We find that the modular forms of integral weights and level $N$ can be arranged into irreducible representations of the homogeneous finite ... More
Smart wing rotation and ingenious leading edge vortex control modulate the unconventional forces during insects flightsNov 13 2018Jun 18 2019Compared with fixed-wing flight, flapping flight can generate a higher lift and is also more maneuverable, largely resulting from the benefits of wing rotation. By analyzing the real wing kinematics of fruit flies, we found that the wing rotation is smart ... More
Variation of a Signal in Schwarzschild SpacetimeJul 24 2018Mar 15 2019In this paper, the variation of a signal in Schwarzschild spacetime is studied and a general equation for frequency shift parameter (FSP) is presented. It shows that FSP depends on the gravitationally-modified Doppler effects and the gravitational effects ... More
Tidal disruption jets of supermassive black holes as hidden sources of cosmic rays: explaining the IceCube TeV-PeV neutrinosDec 29 2015Cosmic ray interactions that produce high-energy neutrinos also inevitably generate high-energy gamma rays, which finally contribute to the diffuse high-energy gamma-ray background after they escape the sources. It was recently found that, the high flux ... More
Modeling the broadband emission of Fermi/LAT GRB 090902BSep 07 2010Dec 22 2010GRB 090902B, detected by Fermi Large Array Telescope (Fermi/LAT), shows extend high-energy emission (>100 MeV) up to 10^3 s after the burst, which decays with time in a power-law as t^{-1.5}. It has been also observed by several follow-up low-energy instruments, ... More
The physical fundamental plane of black hole activity: revisitedNov 27 2015The correlation between the jet power and accretion disk luminosity is investigated for active galactic nuclei (AGNs) and black hole X-ray binaries (BHXBs) from the literature. The power-law correlation index is steep ($\mu \sim$ 1.0--1.4) for radio loud ... More
Systematic studies of charmonium-, bottomonium-, and $B_c$-like tetraquark statesOct 16 2018Jan 18 2019We study the mass splittings of $Q_1q_2\bar{Q}_3\bar{q}_4$ ($Q=c,b$, $q=u,d,s$) tetraquark states with chromomagnetic interactions between their quark components. Assuming that $X(4140)$ is the lowest $J^{PC}=1^{++}$ $cs\bar{c}\bar{s}$ tetraquark, we ... More
Study of Unflavored Light Mesons with $J^{PC}=2^{--}$Jan 11 2019Mar 06 2019The unflavored light meson families, namely $\omega_2$, $\rho_2$, and $\phi_2$, are studied systematically by investigating the spectrum and the two-body strong decays allowed by Okubo-Zweig-Iizuka rule. Including the four experimentally observed states ... More
Duality, Polite Water-filling, and Optimization for MIMO B-MAC Interference Networks and iTree NetworksApr 14 2010Feb 04 2014This paper gives the long sought network version of water-filling named as polite water-filling. Unlike in single-user MIMO channels, where no one uses general purpose optimization algorithms in place of the simple and optimal water-filling for transmitter ... More
Hidden-charm molecular pentaquarks in the coupled channels of $Σ_c^{(*)}(Λ_c)$-$\bar D_1(\bar D_2^*)$May 09 2019In a framework of one-boson-exchange potential model, we systematically investigate interactions between a charmed baryon $\mathcal{B}_{c}^{(*)}=\Lambda_c/\Sigma_c/\Sigma_c^{*}$ and an anti-charmed meson $\bar T=\bar D_1/\bar D_2^*$. Both $S$-$D$ wave ... More
MEGCOM: Min-Energy Group COMmunication in Multi-hop Wireless NetworksFeb 08 2012Feb 19 2012Given the increasing demand from wireless applications, designing energy-efficient group communication protocols is of great importance to multi-hop wireless networks. A group communication session involves a set of member nodes, each of them needs to ... More
Low-excited charm and charm-strange baryons revisited in the quark-diquark pictureSep 26 2016Assuming a heavy quark-light diquark picture, we systematically study the mass spectra and strong decays of $1P$ and $2S$ charm and charm-strange baryons by the nonrelativistic constituent quark models. Most of the existing charm and charm-strange baryons ... More
$X(2100)$ newly observed in $J/ψ\to φηη^\prime$ at BESIII as an isoscalar axial-vector mesonJan 03 2019The newly observed $X(2100)$ by the BESIII Collaboration inspires our interest in studying the isoscalar axial-vector meson family, since this meson family is far from being established till now. Our investigation indicates that the newly reported $X(2100)$ ... More
Resistance distances in corona and neighborhood corona graphs with Laplacian generalized inverse approachMar 18 2015Let $G_1$ and $G_2$ be two graphs on disjoint sets of $n_1$ and $n_2$ vertices, respectively. The corona of graphs $G_1$ and $G_2$, denoted by $G_1\circ G_2$, is the graph formed from one copy of $G_1$ and $n_1$ copies of $G_2$ where the $i$-th vertex ... More
Modular $A_4$ Symmetry Models of Neutrinos and Charged LeptonsJul 26 2019We present a comprehensive analysis of neutrino mass and lepton mixing in theories with $A_4$ modular symmetry, where the only flavon field is the single modulus field $\tau$, and all masses and Yukawa couplings are modular forms. Similar to previous ... More
A Spatial and Temporal Features Mixture Model with Body Parts for Video-based Person Re-IdentificationJul 03 2018The video-based person re-identification is to recognize a person under different cameras, which is a crucial task applied in visual surveillance system. Most previous methods mainly focused on the feature of full body in the frame. In this paper we propose ... More
Star-forming galaxies as the origin of the IceCube PeV neutrinosDec 29 2014Mar 23 2015Star-forming galaxies, due to their high star-formation rates and hence large number of supernova remnants therein, are huge reservoirs of cosmic rays (CRs). These CRs collide with gases in the galaxies and produce high-energy neutrinos through $pp$ collisions. ... More
Fast Calculation of Probabilistic Optimal Power Flow: A Deep Learning ApproachJun 24 2019Probabilistic optimal power flow (POPF) is an important analytical tool to ensure the secure and economic operation of power systems. POPF needs to solve enormous nonlinear and nonconvex optimization problems. The huge computational burden has become ... More
Gotta Adapt 'Em All: Joint Pixel and Feature-Level Domain Adaptation for Recognition in the WildFeb 28 2018May 28 2019Recent developments in deep domain adaptation have allowed knowledge transfer from a labeled source domain to an unlabeled target domain at the level of intermediate features or input pixels. We propose that advantages may be derived by combining them, ... More
Optimally estimating the sample mean from the sample size, median, mid-range and/or mid-quartile rangeMay 21 2015Oct 04 2016The era of big data is coming, and evidence-based medicine is attracting increasing attention to improve decision making in medical practice via integrating evidence from well designed and conducted clinical research. Meta-analysis is a statistical technique ... More
$\bar{K}Λ$ molecular explanation to the newly observed $Ξ(1620)^0$Jun 13 2019The newly observed $\Xi(1620)^0$ by the Belle Collaboration inspires our interest in performing a systematic study on the interaction of an anti-strange meson $(\bar{K}^{(*)})$ with a strange or doubly strange ground octet baryon $\mathcal{B}$ ($\Lambda$, ... More
On conditional fault tolerance of hierarchical cubic networksSep 06 2017This paper considers the conditional fault tolerance, $h$-super connectivity $\kappa^{h}$ and $h$-super edge-connectivity $\lambda^{h}$ of the hierarchical cubic network $HCN_n$, an attractive alternative network to the hypercube, and shows $\kappa^h(HCN_n)=\lambda^h(HCN_n)=2^h(n+1-h)$ ... More
First Principles Study of Adsorption of $O_{2}$ on Al Surface with Hybrid FunctionalsNov 07 2011Adsorption of $O_{2}$ molecule on Al surface has been a long standing puzzle for the first principles calculation. We have studied the adsorption of $O_{2}$ molecule on the Al(111) surface using hybrid functionals. In contrast to the previous LDA/GGA, ... More
A code-free optical undersampling technique for broadband microwave spectrum measurementApr 29 2018Jul 31 2019A novel broadband microwave (MW) spectrum measurement (BMSM) scheme based on code-free optical undersampling and homodyne detection is proposed. The fully analog generation of optical pulses with a far-less-than-Nyquist rate is only through modulating ... More
Geometric field theory and weak Euler-Lagrange equation for classical relativistic particle-field systemsOct 17 2016Nov 21 2017A manifestly covariant, or geometric, field theory for relativistic classical particle-field system is developed. The connection between space-time symmetry and energy-momentum conservation laws for the system is established geometrically without splitting ... More
Variational Symplectic Particle-in-cell Simulation of Nonlinear Mode Conversion from Extraordinary waves to Bernstein WavesJun 12 2015Sep 29 2015In this paper, the nonlinear mode conversion of extraordinary waves in nonuniform magnetized plasmas is studied using the variational symplectic particle-in-cell simulation. The accuracy of the nonlinear simulation is guaranteed by the long-term accuracy ... More
B_{s1}(5830) and B_{s2}^*(5840)Jan 05 2009Apr 07 2009In this paper we investigate the strong decays of the two newly observed bottom-strange mesons $B_{s1}(5830)$ and $B_{s2}^*(5840)$ in the framework of the quark pair creation model. The two-body strong decay widths of $B_{s1}(5830)^0\to B^{*+}K^-$ and ... More
Stellar loci II. a model-free estimate of the binary fraction for field FGK starsDec 03 2014We propose a Stellar Locus OuTlier (SLOT) method to determine the binary fraction of main-sequence stars statistically. The method is sensitive to neither the period nor mass-ratio distributions of binaries, and able to provide model-free estimates of ... More
Stellar loci I. Metallicity dependence and intrinsic widthsDec 03 2014Stellar loci are widely used for selection of interesting outliers, reddening determinations, and calibrations. However, hitherto the dependence of stellar loci on metallicity has not been fully explored and their intrinsic widths are unclear. In this ... More
Limitation of the Least Square Method in the Evaluation of Dimension of Fractal Brownian MotionsJul 12 2015Jul 15 2015With the standard deviation for the logarithm of the re-scaled range $\langle |F(t+\tau)-F(t)|\rangle$ of simulated fractal Brownian motions $F(t)$ given in a previous paper \cite{q14}, the method of least squares is adopted to determine the slope, $S$, ... More
Microscopic characterisation of laser-written phenomena for component-wise testing of photonic integrated circuitsFeb 22 2018Photonic integrated circuits (PICs) directly written with a femtosecond laser have shown great potential in many areas such as quantum information processing (QIP). Many applications, like photon-based quantum computing, demand the up-scaling of PICs ... More
New Vacuum Solar Telescope observations of a flux rope tracked by a filament activationMar 04 2014One main goal of the New Vacuum Solar Telescope (NVST) which is located at the \emph{Fuxian Solar Observatory} is to image the Sun at high resolution. Based on the high spatial and temporal resolution NVST H$\alpha$ data and combined with the simultaneous ... More
Scale-Invariant Structure Saliency Selection for Fast Image FusionOct 30 2018In this paper, we present a fast yet effective method for pixel-level scale-invariant image fusion in spatial domain based on the scale-space theory. Specifically, we propose a scale-invariant structure saliency selection scheme based on the difference-of-Gaussian ... More
Improving the Improved Training of Wasserstein GANs: A Consistency Term and Its Dual EffectMar 05 2018Despite being impactful on a variety of problems and applications, the generative adversarial nets (GANs) are remarkably difficult to train. This issue is formally analyzed by \cite{arjovsky2017towards}, who also propose an alternative direction to avoid ... More
2D-CTC for Scene Text RecognitionJul 23 2019Scene text recognition has been an important, active research topic in computer vision for years. Previous approaches mainly consider text as 1D signals and cast scene text recognition as a sequence prediction problem, by feat of CTC or attention based ... More
Mathematical validation of the Peierls--Nabarro model for edge dislocationsJul 16 2019In this paper, we perform mathematical validation of the Peierls--Nabarro (PN) models, which are multiscale models of dislocations that incorporate the detailed dislocation core structure. We focus on the static and dynamic PN models of an edge dislocation. ... More
Free-rider Episode Screening via Dual Partition ModelMay 19 2018One of the drawbacks of frequent episode mining is that overwhelmingly many of the discovered patterns are redundant. Free-rider episode, as a typical example, consists of a real pattern doped with some additional noise events. Because of the possible ... More
Testing normality using the summary statistics with application to meta-analysisJan 29 2018As the most important tool to provide high-level evidence-based medicine, researchers can statistically summarize and combine data from multiple studies by conducting meta-analysis. In meta-analysis, mean differences are frequently used effect size measurements ... More
Evidence of an Internal Dissipation Origin for the High-energy Prompt Emission of GRB 170214AJun 17 2017Jul 21 2017The origin of the prompt high-energy ($>100$MeV) emission of Gamma-ray Bursts (GRBs), detected by the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope, is still under debate, for which both the external shock origin and internal ... More
Testing the equivalence principle and Lorentz invariance with PeV neutrinos from blazar flaresFeb 22 2016Apr 04 2016It was recently proposed that a giant flare of the blazar PKS B1424-418 at redshift $z=1.522$ is in association with a PeV-energy neutrino event detected by IceCube. Based on this association we here suggest that the flight time difference between the ... More
Constraining the Emissivity of Ultrahigh Energy Cosmic Rays in the Distant Universe with the Diffuse Gamma-ray EmissionMar 18 2011Jul 22 2011Ultra-high cosmic rays (UHECRs) with energies >10^19 eV emitted at cosmological distances will be attenuated by cosmic microwave and infrared background radiation through photohadronic processes. Lower energy extra-galactic cosmic rays (~10^18-10^19 eV) ... More
Study on the radiative decays of $Υ(nS)\to η_b+γ$Feb 05 2010Mar 01 2010In this work, we investigate the characteristics of the spin-singlet state $\eta_b$ of the bottomonia family via the radiative decays of $\Upsilon(nS)\to \eta_b+\gamma$. The theoretical estimation of the decay widths is carried out in terms of the light-front ... More
A New Regularization Method in 3-Dimensional Momentum SpaceJun 22 1998We propose a new method to calculate the 4-dimensional divergent integrals. By calculating the one loop integral as an example, the regularization of the integrals in 3-dimension momentum space are given in details. We find that the new method gives the ... More
On the Łojasiewicz Exponent of the Quadratic Sphere Constrained Optimization ProblemNov 27 2016Nov 29 2016In this paper, we prove that the global version of the ${\L}$ojasiewicz gradient inequality holds for quadratic sphere constrained optimization problem with exponent $\theta=\frac{3}{4}$. An example from Ting Kei Pong shows that $\theta=\frac{3}{4}$ is ... More
Estimating the sample mean and standard deviation from the sample size, median, range and/or interquartile rangeJul 30 2014Oct 05 2016In systematic reviews and meta-analysis, researchers often pool the results of the sample mean and standard deviation from a set of similar clinical trials. A number of the trials, however, reported the study using the median, the minimum and maximum ... More
Spatial distribution of luminous X-ray binaries in spiral galaxiesJun 02 2008Jun 02 2008We have modelled the spatial distribution of luminous X-ray binaries (XRBs) in spiral galaxies that are like the Milky Way using an evolutionary population synthesis code. In agreement with previous theoretical expectations and observations, we find that ... More
Probing charmonium-like state $X(3915)$ through meson photoproductionDec 26 2013Jan 11 2014Inspired by the observation of charmonium-like state $X(3915)$, we explore the discovery potential of the $X(3915)$ production via meson photoproduction process. By investigating the $\gamma p \to J/\psi\omega p$ process including the $X(3915)$ signal ... More
Revisiting the production of charmonium plus a light meson at PANDAMar 19 2012Jul 27 2012In this work, we calculate the total cross sections and the center-of-mass frame angular distributions of the charmonium production plus a light meson by the low energy $p\bar{p}$ interaction. The results of $p\bar{p}\to \pi^0 \Psi$ with and without form ... More
Implicit Dual-domain Convolutional Network for Robust Color Image Compression Artifact ReductionOct 18 2018May 27 2019Several dual-domain convolutional neural network-based methods show outstanding performance in reducing image compression artifacts. However, they suffer from handling color images because the compression processes for gray-scale and color images are ... More
Demystifying Neural Network Filter PruningOct 29 2018Based on filter magnitude ranking (e.g. L1 norm), conventional filter pruning methods for Convolutional Neural Networks (CNNs) have been proved with great effectiveness in computation load reduction. Although effective, these methods are rarely analyzed ... More
Interpretable Convolutional Filter PruningOct 12 2018The sophisticated structure of Convolutional Neural Network (CNN) allows for outstanding performance, but at the cost of intensive computation. As significant redundancies inevitably present in such a structure, many works have been proposed to prune ... More
Moderate Deviation for Random Elliptic PDEs with Small NoiseMar 15 2017Mar 16 2017Partial differential equations with random inputs have become popular models to characterize physical systems with uncertainty coming from, e.g., imprecise measurement and intrinsic randomness. In this paper, we perform asymptotic rare event analysis ... More
The invariance principle and the large deviation for the biased random walk on $\mathbb{Z}^d$Nov 09 2018In this paper, we establish the invariance principle and the large deviation for the biased random walk $RW_{\lambda}$ with $\lambda \in [0,1)$ on $\mathbb{Z}^d, d\geq 1$.
Prototype of Readout Electronics for the ED in LHAASO KM2ANov 12 2015The KM2A(one kilometer square extensive air shower array) is the largest detector array in the LHAA- SO(Large High Altitude Air Shower Observatory) project. The KM2A consists of 5635 EDs(Electromagnetic particle Detectors) and 1221 MDs(Muon Detectors). ... More
Weak value amplification via second-order correlated techniqueOct 27 2015We propose a new framework combining weak measurement and second-order correlated technique. The theoretical analysis shows that WVA experiment can also be implemented by a second-order correlated system. We then build two-dimensional second-order correlated ... More
Entanglement and quantum phase transition in the one-dimensional anisotropic XY modelMay 09 2011In this paper the entanglement and quantum phase transition of the anisotropic s=1/2 XY model are studied by using the quantum renormalization group method. By solving the renormalization equations, we get the trivial fixed point and the untrivial fixed ... More
q-affine-Yangian double correspondence and free boson representation of Yangian double with arbitrary levelJan 26 1997Apr 07 1997We derive a free boson representation of the Yangian double $DY_\hbar(sl_N)$ with arbitrary level k using the observation that there is a correspondence between the q-affine algebra and Yangian double associated with the same Cartan matrix. Vertex operator ... More
Looking Beyond Label Noise: Shifted Label Distribution Matters in Distantly Supervised Relation ExtractionApr 19 2019In recent years there is surge of interest in applying distant supervision (DS) to automatically generate training data for relation extraction. However, despite extensive efforts have been done on constructing advanced neural models, our experiments ... More
Differentiable Programming Tensor NetworksMar 22 2019Jul 12 2019Differentiable programming is a fresh programming paradigm which composes parameterized algorithmic components and trains them using automatic differentiation (AD). The concept emerges from deep learning but is not only limited to training neural networks. ... More
Production of the charmoniumlike state $Y(4220)$ through the $p\bar{p} \to Y(4220) π^0$ reactionOct 24 2017Nov 05 2017The $Y(4220)$ production in the process of $p\bar{p} \to Y(4220)\pi^0$ is studied within the effective Lagrangian approach. We first study the $e^+e^-\to Y(4220) \to p\bar{p}\pi^0$ reaction at center-of-mass energy $4.258$ GeV with the assumption that ... More
EVN observations of candidate Compact Symmetric ObjectsJan 31 2002We present pc-scale images of ten Compact Symmetric Objects (CSO) candidates observed with the European VLBI network (EVN). Five radio sources have been observed at 1.6 GHz, and five more at 2.3/8.4 GHz, the latter subsample with the inclusion in the ... More
Revisiting Multiple Instance Neural NetworksOct 08 2016Recently neural networks and multiple instance learning are both attractive topics in Artificial Intelligence related research fields. Deep neural networks have achieved great success in supervised learning problems, and multiple instance learning as ... More
Higher radial and orbital excitations in the charmed meson familyMar 19 2015Sep 16 2015Considering abundant experimental information of charmed mesons and the present research status, in this work we systematically study higher radial and orbital excitations in the charmed meson family by analyzing the mass spectrum and calculating their ... More
Anomalous dipion invariant mass distribution of the $Υ(4S)$ decays into $Υ(1S) π^{+} π^{-}$ and $Υ(2S) π^{+} π^{-}$Sep 07 2011Nov 11 2011To solve the discrepancy between the experimental data on the partial widths and lineshapes of the dipion emission of $\Upsilon(4S)$ and the theoretical predictions, we suggest that there is an additional contribution which was not taken into account ... More
Classification of the quantum chaos in colored Sachdev-Ye-Kitaev modelsMar 06 2019Apr 03 2019The random matrix theory (RMT) can be used to classify both topological phases of matter and quantum chaos. Here, we apply the random matrix theory (RMT) to classify the quantum chaos in the colored SYK model first introduced by Gross and Rosenhaus. %(which ... More
MV-C3D: A Spatial Correlated Multi-View 3D Convolutional Neural NetworksJun 15 2019As the development of deep neural networks, 3D object recognition is becoming increasingly popular in computer vision community. Many multi-view based methods are proposed to improve the category recognition accuracy. These approaches mainly rely on multi-view ... More
Multi-task GLOH feature selection for human age estimationFeb 14 2011May 06 2011In this paper, we propose a novel age estimation method based on GLOH feature descriptor and multi-task learning (MTL). The GLOH feature descriptor, one of the state-of-the-art feature descriptor, is used to capture the age-related local and spatial information ... More