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Jul 01, 2009

On the progenitors of super-Chandrasekhar mass type Ia supernovae

Type Ia supernovae (SNe Ia) can be used as the standard candlelight to determine the cosmological distances because they are thought to have a unifor…
Nov 27, 2015
Superconductivity

In summary, we have successfully grown crystals of FeS with a tetragonal structure. Resistive measurements reveal that the anisotropy determined from the slopes of upper critical fields near Tc under two configurations H ∥ ab-plane and H ∥ c-axis is…

Multi-band superconductivity and large anisotropy in FeS crystals

By using a hydrothermal method, we have successfully grown crystals of the newly discovered superconductor FeS, which has an isostructure of the iron…
Apr 21, 2015

Eclipsing Binaries From the CSTAR Project at Dome A, Antarctica

The Chinese Small Telescope ARray (CSTAR) has observed an area around the Celestial South Pole at Dome A since 2008. About $20,000$ light curves in t…
Jan 08, 2018
Superconductivity

Vortex lattice and vortex bound states in CsFe$_2$As$_2$ investigated…

We investigate the vortex lattice and vortex bound states in CsFe$_2$As$_2$ single crystals by scanning tunneling microscopy/spectroscopy (STM/STS) u…
Jul 20, 2012
Classical Analysis and ODEs

Exact Hausdorff and packing measures of linear Cantor sets with overl…

Let $K$ be the attractor of a linear iterated function system (IFS) $S_j(x)=\rho_jx+b_j,$ $j=1,\cdots,m$, on the real line satisfying the generalized…
Jul 10, 2014

Delayed-choice gedanken experiments and their realizations

The wave-particle duality dates back to Einstein's explanation of the photoelectric effect through quanta of light and de Broglie's hypothesis of mat…
Nov 05, 2015

Is flux rope a necessary condition for the progenitor of coronal mass…

A magnetic flux rope structure is believed to exist in most coronal mass ejections (CMEs). However, it has been long debated whether the flux rope ex…
Feb 14, 2008

SOHO/SUMER Observations of Prominence Oscillation Before Eruption

Coronal mass ejections (CMEs), as a large-scale eruptive phenomenon, often reveal some precursors in the initiation phase, e.g., X-ray brightening, f…
Jan 10, 2019
Machine Learning
Optimization and Control

Quantized Epoch-SGD for Communication-Efficient Distributed Learning

Due to its efficiency and ease to implement, stochastic gradient descent (SGD) has been widely used in machine learning. In particular, SGD is one of…
Nov 16, 2014
Adaptation and Self-Organizing Systems

Universal Behavior of X-ray Flares from Black Hole Systems

X-ray flares have been discovered in black hole systems, such as gamma-ray bursts, the tidal disruption event Swift J1644+57, the supermassive black …
Dec 12, 2015
Materials Science
Mesoscale and Nanoscale Physics
Strongly Correlated Electrons

Multiferroic materials and magnetoelectric physics: symmetry, entan…

Multiferroics are those materials with more than one ferroic order, and magnetoelectricity refers to the mutual coupling between magnetism and electr…
Feb 12, 2018
Optics

Electromagnetic wave propagating along a space curve

Using the thin-layer approach, we derive the effective equation for the electromagnetic wave propagating along a space curve. We find intrinsic spin-…
Jun 05, 2018
Image and Video Processing
Computer Vision

Deep Image Compression via End-to-End Learning

We present a lossy image compression method based on deep convolutional neural networks (CNNs), which outperforms the existing BPG, WebP, JPEG2000 an…
Aug 19, 2018
Mesoscale and Nanoscale Physics

Non-Hermitian nodal-line semimetals

We investigate non-Hermitian nodal-line semimetals in the presence of a particle gain-and-loss perturbation. It is found that this perturbation will …
Aug 12, 2018

Multi-color blackbody emission in GRB 081221

The radiation mechanism of the prompt emission of gamma-ray bursts (GRBs) remains an open question. Although their spectra are usually well fitted wi…
May 04, 2013

Recurrent Coronal Jets Induced by Repetitively Accumulated Electric …

Three extreme-ultraviolet (EUV) jets recurred in about one hour on 2010 September 17 in the following magnetic polarity of active region 11106. The E…
Dec 21, 2017
Numerical Analysis

Arbitrary-order exponential energy-preserving collocation methods for…

In this paper, we present and analyse a novel class of exponential energy-preserving collocation methods for solving conservative or dissipative syst…
Dec 14, 2007

Simulations of the periodic flaring rate on YY Gem

The binary YY Gem shows many interesting properties, one of which is the periodicity in its flaring rate. The period, which is about $48 \pm 3$ min, …
Apr 27, 2016

Global Coronal Waves

After the {\em Solar and Heliospheric Observatory} ({\em SOHO}) was launched in 1996, the aboard Extreme Ultraviolet Imaging Telescope (EIT) observed…
Mar 27, 2018
Materials Science
Mesoscale and Nanoscale Physics

InSe: a two-dimensional material with strong interlayer coupling

Atomically thin, two-dimensional (2D) indium selenide (InSe) has attracted considerable attention due to large tunability in the band gap (from 1.4 t…
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