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Existence of periodic orbits in three-dimensional piecewise linear systemsJan 14 2010Based on the results about the invariant cones appeared in the literature this paper analyses the existence of periodic orbits in three-dimensional continuous piecewise linear homogeneous systems with two zones, and a necessary and sufficient condition ... More

Tidal deformability of boson stars and dark matter clumpsJun 09 2016Aug 21 2017In this work we consider minimally-coupled boson stars immersed in a tidal environment and compute their tidal deformability to leading order. We also describe an approximate correspondence between Newtonian boson star configurations (described by the ... More

An Empirical Study on Regularization of Deep Neural Networks by Local Rademacher ComplexityFeb 03 2019Feb 14 2019Regularization of Deep Neural Networks (DNNs) for the sake of improving their generalization capability is important and challenging. The development in this line benefits theoretical foundation of DNNs and promotes their usability in different areas ... More

Optimization Algorithm Inspired Deep Neural Network Structure DesignOct 03 2018Deep neural networks have been one of the dominant machine learning approaches in recent years. Several new network structures are proposed and have better performance than the traditional feedforward neural network structure. Representative ones include ... More

A General Framework for Enhancing Sparsity of Generalized Polynomial Chaos ExpansionsJul 10 2017Nov 26 2018Compressive sensing has become a powerful addition to uncertainty quantification when only limited data is available. In this paper we provide a general framework to enhance the sparsity of the representation of uncertainty in the form of generalized ... More

Enhancing Sparsity of Hermite Polynomial Expansions by Iterative RotationsJun 14 2015Nov 16 2015Compressive sensing has become a powerful addition to uncertainty quantification in recent years. This paper identifies new bases for random variables through linear mappings such that the representation of the quantity of interest is more sparse with ... More

Inspiraling eccentric binary neutron stars: orbital motion and tidal resonanceApr 24 2019We study the orbital evolution of eccentric binary neutron stars. The orbit is described as a Quasi-Keplarian orbit with perturbations due to tidal couplings. We find that the tidal interaction between stars contributes to orbital precession, in addition ... More

An Alternative D$p$-brane Solution of Type IIB SupergravityNov 08 2004Nov 19 2004By separating the thermal circle from the extra dimensions, we find a novel exact D$p$-brane solution of Type IIB supergravity, which might provide a scenario for studying the non-perturbative dynamics of QCD$_4$ from the perspective of Type IIB supergravity. ... More

Open quantum dynamics of single-photon optomechanical devicesOct 14 2011May 04 2012We study the quantum dynamics of a Michelson interferometer with Fabry-Perot cavity arms and one movable end mirror, and driven by a single photon --- an optomechanical device previously studied by Marshall et al. as a device that searches for gravity ... More

Systematic parameter inference in stochastic mesoscopic modelingJun 21 2016We propose a method to efficiently determine the optimal coarse-grained force field in mesoscopic stochastic simulations of Newtonian fluid and polymer melt systems modeled by dissipative particle dynamics (DPD) and energy conserving dissipative particle ... More

Correlation between SFR surface density and thermal pressure of ionized gas in local analogs of high-redshift galaxiesNov 14 2018We explore the relation between the star formation rate surface density ($\Sigma$SFR) and the interstellar gas pressure for nearby compact starburst galaxies. The sample consists of 17 green peas and 19 Lyman break analogs. Green peas are nearby analogs ... More

Investigating Thermal Cooling Mechanisms of Human Body Under Exposure to Electromagnetic RadiationJan 10 2019Thermal cooling mechanisms of human exposed to electromagnetic (EM) radiation are studied in detail. The electromagnetic and thermal co-simulation method is utilized to calculate the electromagnetic and temperature distributions. Moreover, Pennes' bioheat ... More

The impedance-matched reduced acoustic cloaking with realizable mass and its layered designMay 08 2008The authors present an impedance-matched reduced version of acoustic cloaking whose mass is in a reasonable range. A layered cloak design with isotropic material is also proposed for the reduced cloak. Numerical calculations from the transfer matrix methods ... More

Barrier tunneling of the Loop-Nodal Semimetal in the Hyperhoneycomb latticeJan 09 2018We theoretically investigate the barrier tunneling in the three-dimensional model of the hyperhoneycomb lattice, which is a nodal-line semimetal with a Dirac loop at zero energy. In the presence of a rectangular potential, the scattering amplitudes for ... More

Localization Trajectory and Chern-Simons axion coupling for Bilayer Quantum Anomalous Hall SystemsDec 07 2018Mar 12 2019Quantum anomalous Hall (QAH) multilayers provide a platform of topological materials with high Chern numbers. We investigate the localization routes of bilayer QAH systems with Chern number C = 2 under strong disorder, by numerical simulations on their ... More

Merging Dirac electrons and correlation effect in the heterostructured Bi2Te3/Fe1+dTeSep 24 2015The topological insulator and strong electronic correlation effect are two important subjects in the frontier studies of modern condensed matter physics. A topological insulator exhibits a unique pair of surface conduction bands with the Dirac dispersion ... More

Vortex lattice and vortex bound states in CsFe$_2$As$_2$ investigated by scanning tunneling microscopy/spectroscopyJan 08 2018Jul 11 2018We investigate the vortex lattice and vortex bound states in CsFe$_2$As$_2$ single crystals by scanning tunneling microscopy/spectroscopy (STM/STS) under various magnetic fields. A possible structural transition or crossover of vortex lattice is observed ... More

In-Gap Quasiparticle Excitations Induced by Non-Magnetic Cu Impurities in Na(Fe0.96Co0.03Cu0.01)As Revealed by Scanning Tunneling SpectroscopyJun 09 2013Nov 20 2013The pairing mechanism in the iron pnictides remains unresolved yet. One of the central issues is the structure of the superconducting order parameter which classifies the community into two different and highly disputed camps. On one hand the picture ... More

Effects of Preheated Clusters on the CMB SpectrumOct 15 2002Nov 15 2002Mounting evidence from $x$-ray observations reveals that bound objects should receive some form of energy in the past injected from non-gravitaional sources. We report that an instantaneous heating scheme, for which gases in dense regions were subjected ... More

Context-aware Cascade Attention-based RNN for Video Emotion RecognitionMay 30 2018Emotion recognition can provide crucial information about the user in many applications when building human-computer interaction (HCI) systems. Most of current researches on visual emotion recognition are focusing on exploring facial features. However, ... More

Brownian Thermal Noise in Multilayer Coated MirrorsJul 25 2012We analyze the Brownian thermal noise of a multi-layer dielectric coating, used in high-precision optical measurements including interferometric gravitational-wave detectors. We assume the coating material to be isotropic, and therefore study thermal ... More

Gravitational floating orbits around hairy black holesAug 08 2018Mar 10 2019We show that gravitational floating orbits may exist for black holes with rotating hairs. These black hole hairs could originate from the superradiant growth of a light axion field around the rotating black holes. If a test particle rotates around the ... More

Testing Gravitational Memory Generation with Compact Binary MergersMar 06 2018Gravitational memory is an important prediction of classical General Relativity, which is intimately related to asymptotic symmetries at null infinity and the so-called soft graviton theorem first shown by Weinberg. For a given transient astronomical ... More

Unsupervised Extraction of Video Highlights Via Robust Recurrent Auto-encodersOct 06 2015With the growing popularity of short-form video sharing platforms such as \em{Instagram} and \em{Vine}, there has been an increasing need for techniques that automatically extract highlights from video. Whereas prior works have approached this problem ... More

Simulation of a Combined SZE and Weak Lensing Cluster Survey for AMiBA ExperimentFeb 01 2004Oct 02 2005We present simulations of interferometric Sunyaev-Zel'dovich effect (SZE) and optical weak lenisng observations for the forthcoming AMiBA experiment, aiming at searching for high-redshift clusters of galaxies. On the basis of simulated sky maps, we have ... More

Quantifying the influence of conformational uncertainty in biomolecular solvationAug 24 2014Aug 31 2015Biomolecules exhibit conformational fluctuations near equilibrium states, inducing uncertainty in various biological properties in a dynamic way. We have developed a general method to quantify the uncertainty of target properties induced by conformational ... More

Black Hole Discharge: very-high-energy gamma rays from black hole-neutron star mergersMay 12 2019With mass ratio larger than $\sim 5$, star disruption is not expected for a black hole merging with a neutron star during the final plunge phase. In the late inspiral stage, the black hole is likely charged as it cuts through the magnetic field carried ... More

Collective vortex pinning and crossover between second order to first order transition in optimally doped Ba1-xKxBiO3 single crystalsJan 05 2017Measurements on magnetization and relaxation have been carried out on an optimally doped Ba$_{0.59}$K$_{0.47}$BiO$_{3+\delta}$ single crystal with $T_c$ = 31.3 K. Detailed analysis is undertaken on the data. Both the dynamical relaxation and conventional ... More

The melilite-type compound (Sr$_{1-x}$,$A_x$)$_2$MnGe$_2$S$_6$O ($A$=K, La) being a room temperature ferromagnetic semiconductorApr 12 2018The seeking of room temperature ferromagnetic semiconductors, which take advantages of both the charge and spin degrees of freedom of electrons to realize a variety of functionalities in devices integrated with electronic, optical, and magnetic storage ... More

Three-Dimensional Phase Field Simulations of Hysteresis and Butterfly Loops by Finite Volume MethodApr 23 2015Three-dimensional (3D) simulations of ferroelectric hysteresis and butterfly loops have been carried out based on solving the time dependent Ginsburg-Landau equations by using a finite volume method. The influence of externally mechanical loadings with ... More

Atomic radius and charge parameter uncertainty in biomolecular solvation energy calculationsMay 29 2017Dec 22 2017Atomic radii and charges are two major parameters used in implicit solvent electrostatics and energy calculations. The optimization problem for charges and radii is under-determined, leading to uncertainty in the values of these parameters and in the ... More

Strong coupling superconductivity revealed by scanning tunneling microscope in tetragonal FeSMay 17 2016Jul 27 2016We investigate the electronic properties of the tetragonal FeS superconductor by using scanning tunneling microscope/spectroscopy. It is found that the typical tunneling spectrum on the top layer of sulfur can be nicely fitted with an anisotropic s-wave ... More

Possible superconducting fluctuation and pseudogap state above $T_c$ in CsFe$_2$As$_2$Apr 25 2016Resistive, magnetization, torque, specific heat and scanning tunneling microscopy measurements are carried out on the hole heavily doped CsFe$_2$As$_2$ single crystals. A characteristic temperature $T^*\sim13$ K, which is several times higher than the ... More

Sign reversal superconducting gaps revealed by phase referenced quasi-particle interference of impurity induced bound states in (Li$_{1-x}$Fe$_x$)OHFe$_{1-y}$Zn$_y$SeMar 28 2018By measuring the spatial distribution of differential conductance near impurities on Fe sites, we have obtained the quasi-particle interference (QPI) patterns in the (Li$_{1-x}$Fe$_x$)OHFe$_{1-y}$Zn$_y$Se superconductor with only electron Fermi surfaces. ... More

Discovery of An Active Intermediate-Mass Black Hole Candidate in the Barred Bulgeless Galaxy NGC 3319Oct 24 2018We report the discovery of an active intermediate-mass black hole (IMBH) candidate in the center of nearby barred bulgeless galaxy $\rm NGC~3319$. The point X-ray source revealed by archival Chandra and XMM-Newton observations is spatially coincident ... More

Scrutinizing the double superconducting gaps and strong coupling pairing in (Li1-xFexOH)FeSeJun 15 2015Aug 05 2015In the iron based superconductors, one of the on-going frontier studies is about the pairing mechanism. The recent interest concerns the high temperature superconductivity and its intimate reason in the monolayer FeSe thin films. The challenge here is ... More

A variational problem arising in registration of diffusion tensor imagesNov 22 2016The existence of a global minimizer for a variational problem arising in registration of diffusion tensor images is proved, which ensures that there is a regular spatial transformation for the registration of diffusion tensor images.

On the largest sizes of certain simultaneous core partitions with distinct partsSep 02 2017Motivated by Amdeberhan's conjecture on $(t,t+1)$-core partitions with distinct parts, various results on the numbers, the largest sizes and the average sizes of simultaneous core partitions with distinct parts were obtained by many mathematicians recently. ... More

A variational model with fractional-order regularization term arising in registration of diffusion tensor imageNov 23 2016In this paper, a new variational model with fractional-order regularization term arising in registration of diffusion tensor image(DTI) is presented. Moreover, the existence of its solution is proved to ensure that there is a regular solution for this ... More

Core partitions with distinct partsAug 31 2015Mar 19 2017Simultaneous core partitions have attracted much attention since Anderson's work on the number of $(t_1,t_2)$-core partitions. In this paper we focus on simultaneous core partitions with distinct parts. The generating function of $t$-core partitions with ... More

Partitions with the same hook multisetJan 07 2015It is well-known that two conjugate partitions have the same hook multiset. But two different partitions with the same hook multiset may not be conjugate to each other. In $1977$, Herman and Chung proposed the following question: What are the necessary ... More

On the largest size of $(t,t+1,..., t+p)$-core partitionsOct 08 2014Jan 07 2015In this paper we prove that Amdeberhan's conjecture on the largest size of $(t, t+1, t+2)$-core partitions is true. We also show that the number of $(t, t + 1, t + 2)$-core partitions with the largest size is $1$ or $2$ based on the parity of $t$. More ... More

Existence and bifurcation of homoclinic orbits in planar piecewise linear systemsJul 01 2009The existence and bifurcation of homoclinic orbits in planar piecewise linear homogeneous systems with two regions separated by a discontinuity boundary are investigated in this paper. In addition, existence of periodic orbits and stability of the origin ... More

Controlled state-to-state atom-exchange reaction in an ultracold atom-dimer mixtureNov 28 2016Ultracold molecules offer remarkable opportunities to study chemical reactions at nearly zero temperature. Although significant progresses have been achieved in exploring ultracold bimolecular reactions, the investigations are usually limited to measurements ... More

Warped embeddings between Einstein manifoldsFeb 04 2010Warped embeddings from a lower dimensional Einstein manifold into a higher dimensional one are analyzed. Explicit solutions for the embedding metrics are obtained for all cases of codimension 1 embeddings and some of the codimension n>1 cases. Some of ... More

Magnetosphere of a spinning black hole and the role of the current sheetMay 15 2018Jul 05 2018We revisit the problem of a spinning black hole immersed in a uniformly magnetized plasma within the context of force-free electrodynamics. Such configurations have been found to relax to stationary jetlike solutions that are powered by the rotational ... More

Nonstandard Hopf bifurcation in switchedJan 13 2010This paper presents an analysis on nonstandard generalized Hopf bifurcation in a class of switched systems where the lost of stability of linearized systems is not due to the crossing of their complex conjugate eigenvalues but relevant to the switching ... More

LnPd$_{2}$Sn (Ln=Sc, Y, Lu) class of Heusler alloys for topological superconductivityNov 15 2018Based on the first-principles electronic structure calculations and the symmetry analysis, we predict that the topological superconductivity may occur on the surface of the LnPd$_{2}$Sn (Ln=Sc, Y, Lu) class of Heusler alloys. The calculated electronic ... More

Fake News Mitigation via Point Process Based InterventionMar 22 2017Jun 19 2017We propose the first multistage intervention framework that tackles fake news in social networks by combining reinforcement learning with a point process network activity model. The spread of fake news and mitigation events within the network is modeled ... More

XJTLUIndoorLoc: A New Fingerprinting Database for Indoor Localization and Trajectory Estimation Based on Wi-Fi RSS and Geomagnetic FieldOct 17 2018In this paper, we present a new location fingerprinting database comprised of Wi-Fi received signal strength (RSS) and geomagnetic field intensity measured with multiple devices at a multi-floor building in Xi'an Jiatong-Liverpool University, Suzhou, ... More

Experimental Demonstration of the Sign Reversal of the Order Parameter in (Li1-xFex)OHFe1-yZnySeApr 20 2017Iron pnictides are the only known family of unconventional high-temperature superconductors besides cuprates. Until recently, it was widely accepted that superconductivity is spin-fluctuation driven and intimately related to their fermiology, specifically, ... More

Drive the Dirac Electrons into Cooper Pairs in SrxBi2Se3Apr 27 2016Topological superconductor is a very interesting and frontier topic in condensed matter physics1. Despite the tremendous efforts in exploring the topological superconductivity, its presence is however still under heavy debates. The Dirac electrons are ... More

Test of the notch technique for determining the radial sensitivity of the optical model potentialAug 10 2015Detailed investigations on the notch technique are performed on the ideal data generated by the optical model potential parameters extracted from the 16O+208Pb system at the laboratory energy of 129.5 MeV, to study the sensitivities of this technique ... More

Testing Gravity with Pulsar Scintillation MeasurementsJun 10 2016We propose to use pulsar scintillation measurements to test predictions of alternative theories of gravity. Comparing to single-path pulsar timing measurements, the scintillation measurements can achieve a factor of 10^5 improvement in timing accuracy, ... More

Reveal non-Markovianity of open quantum systems via local operationsNov 25 2011Non-Markovianity, as an important feature of general open quantum systems, is usually difficult to quantify with limited knowledge of how the plant that we are interested in interacts with its environment-the bath. It often happens that the reduced dynamics ... More

First-Order Perturbative Hamiltonian Equations of Motion for a Point Particle Orbiting a Schwarzschild Black HoleNov 23 2012We formulate a spherical harmonically decomposed 1+1 scheme to self-consistently evolve the trajectory of a point particle and its gravitational metric perturbation to a Schwarzschild background spacetime. Following the work of Moncrief, we write down ... More

Global Crustal Dynamics of Magnetars in Relation to their Bright X-ray OutburstsAug 08 2016This paper considers the yielding response of a neutron star crust to smooth, unbalanced Maxwell stresses imposed at the core-crust boundary, and the coupling of the dynamic crust to the external magnetic field. Stress buildup and yielding in a magnetar ... More

Two-field Kähler moduli inflation on large volume moduli stabilizationApr 23 2008Aug 17 2008In this paper we present a two-field inflation model, which distinguishes itself with a non-canonical kinetic lagrangian and comes from the large volume approach to the moduli stabilization in flux compactification of type IIB superstring on a Calabi-Yau ... More

Turbulent Black HolesFeb 20 2014Mar 03 2014We show that rapidly-spinning black holes can display turbulent gravitational behavior which is mediated by a new type of parametric instability. This instability transfers energy from higher temporal and azimuthal spatial frequencies to lower frequencies--- ... More

FSNet: Compression of Deep Convolutional Neural Networks by Filter SummaryFeb 08 2019Feb 13 2019We present a novel method of compression of deep Convolutional Neural Networks (CNNs). Our method reduces the number of parameters of each convolutional layer by learning a 3D tensor termed Filter Summary (FS). The convolutional filters are extracted ... More

Highly Anisotropic and Robust Excitons in Monolayer Black PhosphorusNov 06 2014Semi-metallic graphene and semiconducting monolayer transition metal dichalcogenides (TMDCs) are the two-dimensional (2D) materials most intensively studied in recent years. Recently, black phosphorus emerged as a promising new 2D material due to its ... More

Low-cost high-efficiency solar steam generation by wick material with graphite micro/nano particlesFeb 17 2017Jul 08 2017Generating water steam by solar energy is a significant process for many fields. In this paper, a low-cost high-efficiency wick type steam generator is proposed. It's based on the heat localization and thin-film evaporation. The measurements show that ... More

The Dawn Light of Blueberry Galaxies: Spectroscopic and Photometric Studies of two Starburst Dwarf GalaxiesJun 26 2018Aug 24 2018A population of so-called "blueberry" starbursting dwarf galaxies with extremely blue colors, low-metallicities, and enormous ionization ratios, has recently been found by Yang et al. (2017). Yet we still do not know their detailed properties, such as ... More

Non-adiabatic elimination of auxiliary modes in continuous quantum measurementsAug 03 2011Aug 31 2011When measuring a complex quantum system, we are often interested in only a few degrees of freedom-the plant, while the rest of them are collected as auxiliary modes-the bath. The bath can have finite memory (non-Markovian), and simply ignoring its dynamics, ... More

FSNet: Compression of Deep Convolutional Neural Networks by Filter SummaryFeb 08 2019We present a novel method of compression of deep Convolutional Neural Networks (CNNs). The proposed method reduces the number of parameters of each convolutional layer by learning a 3D tensor termed Filter Summary (FS). The convolutional filters are extracted ... More

The New Extended Left-Right Symmetric Grand Unified Model with SO(3) Family SymmetryJan 02 2009Apr 22 2009We suggest a new left-right symmetric grand unified model by extending Pati-Salam group to contain an isospin SU(2) and a flavor SO(3) subgroup, where the superheavy fermions are introduced as a mirror to the low-energy standard model fermions. The model ... More

Feshbach Loss Spectroscopy in an Ultracold $^{23}$Na and $^{40}$K MixtureSep 05 2017We perform Feshbach spectroscopy in an ultracold mixture of $^{23}$Na and $^{40}$K with different spin-state combinations. We have observed 24 new interspecies Feshbach resonances at magnetic field up to 350 G. A full coupled-channel calculation is performed ... More

Towards an understanding of the force-free magnetosphere of rapidly spinning black holesSep 01 2014The ability of a plasma surrounding spinning black holes to extract rotational energy and power energetic emissions has been recognized as a key astrophysical phenomenon. Important insights into the nature of this process are obtained through the analysis ... More

Towards the Design of Gravitational-Wave Detectors for Probing Neutron-Star PhysicsDec 20 2017Aug 20 2018The gravitational waveform of merging binary neutron stars encodes information about extreme states of matter. Probing these gravitational emissions requires the gravitational-wave detectors to have high sensitivity above 1 kHz. Fortunately for current ... More

Quantum correlation of light mediated by gravityJan 17 2019Mar 07 2019We consider using the quantum correlation of light in two optomechanical cavities, which are coupled to each other through the gravitational interaction of their end mirrors, to probe the quantum nature of gravity. The optomechanical interaction coherently ... More

Tidal resonance in extreme mass-ratio inspiralsApr 30 2019We describe a new class of resonances for extreme mass-ratio inspirals (EMRIs): tidal resonances, induced by the tidal gravity of nearby stars or stellar-mass black holes. A tidal resonance can be viewed as a general relativistic extension of the Kozai-Lidov ... More

Direct visualization of sign reversal s^+- superconducting gaps in FeTe0.55Se0.45Oct 15 2018In many unconventional superconductors, the pairing of electrons is driven by the repulsive interaction, which leads to the sign reversal of superconducting gaps along the Fermi surfaces (FS) or between them. However, to measure this sign change is not ... More

Directly visualizing the sign change of d-wave superconducting gap in Bi2Sr2CaCu2O8+δ by phase-referenced quasiparticle interferenceAug 19 2018The superconducting state is achieved by the condensation of Cooper pairs and is protected by the superconducting gap. The pairing interaction between the two electrons of a Cooper pair determines the superconducting gap function. Thus, it is very pivotal ... More

On the Anisotropy of Nuclei Mid-Infrared Radiation in Nearby Active Galactic NucleiNov 17 2014In the center of active galactic nuclei (AGN), the dusty torus absorb the radiation from the central engine and re-emit in mid-infrared (MIR). Observations have detected moderate anisotropy in the dust MIR emission, in the way that type 1 AGNs (type1s) ... More

Tidal deformability of dark matter clumpsJun 09 2016We analyze the tidal deformability of a clump of dark matter particles, modelled by the collisionless Boltzmann equation. We adopt a wave-mechanical approach to the problem, in which the dynamical equations are approximated by a set of Schr\"{o}dinger-Poisson ... More

Magnetosphere of a Kerr black hole immersed in magnetized plasma and its perturbative mode structureMar 23 2015Jun 19 2015This work studies jet-like electromagnetic configurations surrounding a slowly-spinning black-hole immersed in a uniformly magnetized force-free plasma. In the first part of this work, we present a family of stationary solutions that are jet-capable. ... More

Self-torque and angular momentum balance for a spinning charged sphereMay 01 2018Oct 29 2018Angular momentum balance is examined in the context of the electrodynamics of a spinning charged sphere, which is allowed to possess any variable angular velocity. We calculate the electric and magnetic fields of the (hollow) sphere, and express them ... More

Can we distinguish low mass black holes in neutron star binaries?Oct 16 2017Nov 29 2018The detection of gravitational waves from coalescing binary neutron stars represents another milestone in gravitational-wave astronomy. However, since LIGO is currently not as sensitive to the merger/ringdown part of the waveform, the possibility that ... More

Multi-band effect in the noncentrosymmetric superconductors Mg_{12-δ}Ir_{19}B_{16} revealed by Hall effect and magnetoresistance measurementsJun 09 2010We report the longitudinal resistivity and Hall effect measurements on the noncentrosymmetric superconducting Mg$_{12-\delta}$Ir$_{19}$B$_{16}$ samples with different critical transition temperatures. A strong temperature dependence of the Hall coefficient ... More

Ly$α$ profile, dust, and prediction of Ly$α$ escape fraction in Green Pea GalaxiesJan 07 2017Jul 27 2017We studied Lyman-$\alpha$ (Ly$\alpha$) escape in a statistical sample of 43 Green Peas with HST/COS Ly$\alpha$ spectra. Green Peas are nearby star-forming galaxies with strong [OIII]$\lambda$5007 emission lines. Our sample is four times larger than the ... More

Femtosecond Laser-induced Crystallization of Amorphous Sb2Te3 film and Coherent Phonon Spectroscopy Characterization and Optical Injection of Electron SpinsOct 12 2011A femtosecond laser-irradiated crystallizing technique is tried to convert amorphous Sb2Te3 film into crystalline film. Sensitive coherent phonon spectroscopy (CPS) is used to monitor the crystallization of amorphous Sb2Te3 film at the original irradiation ... More

Decay of solutions to the three-dimensional generalized Navier-Stokes equationsJun 07 2014In this paper, we first obtain the temporal decay estimates for weak solutions to the three dimensional generalized Navier-Stokes equations. Then, with these estimates at disposal, we obtain the temporal decay estimates for higher order derivatives of ... More

Characterizations of compact sets in fuzzy sets spaces with $L_p$ metricAug 29 2015Mar 06 2016Diamond gave compact criteria in fuzzy numbers space endowed with $L_p$ metric and compact criteria in the space of fuzzy star-shaped numbers with respect to the origin endowed with $L_p$ metric. However, these compact criteria are wrong. Wu and Zhao ... More

Diffusion thermopower of a $p-$type Si/Si$_{1-x}$Ge$_x$ heterostructure at zero fieldMar 30 2006Oct 26 2010This paper has been withdrawn by the author because it is superseded by a new preprint: Tran Doan Huan & Nguyen Phuc Hai: arXiv:1010.5162.

Where are your eyes going to look during reading? A critical evaluation of saccade targeting hypothesisMar 06 2015Mar 18 2015The word-based account of saccades drawn by a central gravity of the PVL is supported by two pillars of evidences. The first is the finding of the initial fixation location on a word resembled a normal distribution (Rayner, 1979). The other is the finding ... More

Optomechanical photon shuttling between photonic cavitiesSep 03 2014Mechanical motion of photonic devices driven by optical forces provides a profound means of coupling between optical fields. The current focus of these optomechanical effects has been on cavity optomechanics systems in which co-localized optical and mechanical ... More

On the Complexity Analysis of the Primal Solutions for the Accelerated Randomized Dual Coordinate AscentJul 01 2018Dual first-order methods are essential techniques for large-scale constrained convex optimization. However, when recovering the primal solutions, we need $T(\epsilon^{-2})$ iterations to achieve an $\epsilon$-optimal primal solution when we apply an algorithm ... More

Provable Accelerated Gradient Method for Nonconvex Low Rank OptimizationFeb 16 2017Mar 17 2019Optimization over low rank matrices has broad applications in machine learning. For large scale problems, an attractive heuristic is to factorize the low rank matrix to a product of two much smaller matrices. In this paper, we study the nonconvex problem ... More

AGAN: Towards Automated Design of Generative Adversarial NetworksJun 25 2019Recent progress in Generative Adversarial Networks (GANs) has shown promising signs of improving GAN training via architectural change. Despite some early success, at present the design of GAN architectures requires human expertise, laborious trial-and-error ... More

Critical state of phantom universeJul 16 2006Feb 28 2007The late-time evolution behavior of the autonomous system in the SO(1,1) dark energy model with power-law potential is studied. Big Rip may be a critical point of the autonomous system. This means that such a Big Rip may be considered as the middle state ... More

Accelerated Alternating Direction Method of Multipliers: an Optimal $O(1/K)$ Nonergodic AnalysisAug 23 2016Dec 12 2018The Alternating Direction Method of Multipliers (ADMM) is widely used for linearly constrained convex problems. It is proven to have an $o(1/\sqrt{K})$ nonergodic convergence rate and a faster $O(1/K)$ ergodic rate after ergodic averaging, which may destroy ... More

A max-plus based fundamental solution for a class of discrete time linear regulator problemsJun 21 2013Apr 30 2014Efficient Riccati equation based techniques for the approximate solution of discrete time linear regulator problems are restricted in their application to problems with quadratic terminal payoffs. Where non-quadratic terminal payoffs are required, these ... More

Random Periodic Solutions of Random Dynamical SystemsFeb 10 2015In this paper, we give the definition of the random periodic solutions of random dynamical systems. We prove the existence of such periodic solutions for a $C^1$ perfect cocycle on a cylinder using a random invariant set, the Lyapunov exponents and the ... More

Bound states for a stationary nonlinear Schrodinger-Poisson system with sign-changing potential in $R^3$Apr 29 2009We study the following Schr\"odinger-Poisson system (P_\lambda){ll} -\Delta u + V(x)u+\lambda \phi (x) u =Q(x)u^{p}, x\in \mathbb{R}^3 \\ -\Delta\phi = u^2, \lim\limits_{|x|\to +\infty}\phi(x)=0, u>0, where $\lambda\geqslant0$ is a parameter, $1 < p < ... More

BinderCracker: Assessing the Robustness of Android System ServicesApr 23 2016In Android, communications between apps and system services are supported by a transaction-based Inter-Process Communication (IPC) mechanism. Binder, as the cornerstone of this IPC mechanism, separates two communicating parties as client and server. As ... More

Difference operators for partitions and some applicationsAug 04 2015Jan 18 2018Motivated by the Nekrasov-Okounkov formula on hook lengths, the first author conjectured that the Plancherel average of the $2k$-th power sum of hook lengths of partitions with size $n$ is always a polynomial of $n$ for any $k\in \mathbb{N}$. This conjecture ... More

On edge-primitive graphs with soluble edge-stabilizersJun 22 2019A graph is edge-primitive if its automorphism group acts primitively on the edge set, and 2-arc-transitive if its automorphism group acts transitively on the set of 2-arcs. In this paper, we present a classification for those edge-primitive graphs which ... More

Some useful theorems for asymptotic formulas and their applications to skew plane partitions and cylindric partitionsJul 16 2017Inspired by the works of Dewar, Murty and Kot\v{e}\v{s}ovec, we establish some useful theorems for asymptotic formulas. As an application, we obtain asymptotic formulas for the numbers of skew plane partitions and cylindric partitions. We prove that the ... More

Failure of Parameter Identification Based on Adaptive Synchronization TechniquesDec 30 2006Mar 27 2007In the paper, several concrete examples, as well as their numerical simulations, are given to show that parameter identification based on the so-called adaptive synchronization techniques might be failed if those functions with parameters pending for ... More

Risk-Averse Stochastic Convex BanditOct 01 2018Motivated by applications in clinical trials and finance, we study the problem of online convex optimization (with bandit feedback) where the decision maker is risk-averse. We provide two algorithms to solve this problem. The first one is a descent-type ... More