title: Holographic Entanglement in a Noncommutative Gauge Theory

abstract:
  In this article we investigate aspects of entanglement entropy and mutual
information in a large-N strongly coupled noncommutative gauge theory, both at
zero and at finite temperature. Using the gauge-gravity duality and the
Ryu-Takayanagi (RT) prescription, we adopt a scheme for defining spatial
regions on such noncommutative geometries and subsequently compute the
corresponding entanglement entropy. We observe that for regions which do not
lie entirely in the noncommutative plane, the RT-prescription yields sensible
results. In order to make sense of the divergence structure of the
corresponding entanglement entropy, it is essential to introduce an additional
cut-off in the theory. For regions which lie entirely in the noncommutative
plane, the corresponding minimal area surfaces can only be defined at this
cut-off and they have distinctly peculiar properties.


title: General scheme for the construction of a protected qubit subspace

abstract:
  We present a new robust decoupling scheme suitable for levels with either
half integer or integer angular momentum states. Through continuous dynamical
decoupling techniques, we create a protected qubit subspace, utilizing a
multi-state qubit construction. Remarkably, the multi-state system can also be
comprised of multiple sub-states within a single level. Our scheme can be
realized with state-of-the-art experimental setups and thus has immediate
applications for quantum information science. While the scheme is general and
relevant for a multitude of solid state and atomic systems, we analyze its
performance for the case composed of trapped ions. Explicitly, we show how
single qubit gates and an ensemble coupling to a cavity mode can be implemented
efficiently. The scheme predicts a coherence time of ~1 second, as compared to
typically a few milliseconds for the bare states.


title:
The Fermilab Main Injector: high intensity operation and beam loss
  control

abstract:
  From 2005 through 2012, the Fermilab Main Injector provided intense beams of
120 GeV protons to produce neutrino beams and antiprotons. Hardware
improvements in conjunction with improved diagnostics allowed the system to
reach sustained operation at ~400 kW beam power. Transmission was very high
except for beam lost at or near the 8 GeV injection energy where 95% beam
transmission results in about 1.5 kW of beam loss. By minimizing and localizing
loss, residual radiation levels fell while beam power was doubled. Lost beam
was directed to either the collimation system or to the beam abort. Critical
apertures were increased while improved instrumentation allowed optimal use of
available apertures. We will summarize the improvements required to achieve
high intensity, the impact of various loss control tools and the status and
trends in residual radiation in the Main Injector.


title: The Lens-Thirring effect in the anomalistic period of celestial bodies

abstract:
  In the weak field and slow motion approximation, the general relativistic
field equations are linearized, resembling those of the electromagnetic theory.
In a way analogous to that of a moving charge generating a magnetic field, a
mass energy current can produce a gravitomagnetic field. In this contribution,
the motion of a secondary celestial body is studied under the influence of the
gravitomagnetic force generated by a spherical primary. More specifically, two
equations are derived to approximate the periastron time rate of change and its
total variation over one revolution (i.e., the difference between the
anomalistic period and the Keplerian period). Kinematically, this influence
results to an apsidal motion. The aforementioned quantities are numerically
estimated for Mercury, the companion star of the pulsar PSR 1913 plus 16, the
companion planet of the star HD 80606 and the artificial Earth satellite GRACE
A. The case of the artificial Earth satellite GRACE A is also considered, but
the results present a low degree of reliability from a practical standpoint.


title: On the importance of gluon contributions to timelike and spacelike DVCS

abstract:
  We emphasize how large O(\alpha_s) corrections to timelike and spacelike
virtual Compton scattering amplitudes are in the generalized Bjorken scaling
regime, and in particular the gluonic contributions, even in the medium energy
range which will be studied intensely at JLab12 and in the COMPASS-II
experiment at CERN. We stress that the timelike and spacelike cases are
complementary and that their difference deserves much special attention.


title: New methods for (phi, Gamma)-modules

abstract:
  We provide new proofs of two key results of p-adic Hodge theory: the
Fontaine-Wintenberger isomorphism between Galois groups in characteristic 0 and
characteristic p, and the Cherbonnier-Colmez theorem on decompletion of (phi,
Gamma)-modules. These proofs are derived from joint work with Liu on relative
p-adic Hodge theory, and are closely related to Scholze's study of perfectoid
algebras and spaces.


title: Cluster expansion made easy with Bayesian compressive sensing

abstract:
  Long-standing challenges in cluster expansion (CE) construction include
choosing how to truncate the expansion and which crystal structures to use for
training. Compressive sensing (CS), which is emerging as a powerful tool for
model construction in physics, provides a mathematically rigorous framework for
addressing these challenges. A recently-developed Bayesian implementation of CS
(BCS) provides a parameterless framework, a vast speed up over current CE
construction techniques, and error estimates on model coefficients. Here, we
demonstrate the use of BCS to build cluster expansion models for several binary
alloy systems. The speed of the method and the accuracy of the resulting fits
are shown to be far superior than state-of-the-art evolutionary methods for all
alloy systems shown. When combined with high throughput first-principles
frameworks, the implications of BCS are that hundreds of lattice models can be
automatically constructed, paving the way to high throughput thermodynamic
modeling of alloys.


title:
The long-term evolution of neutron star merger remnants - I. The impact
  of r-process nucleosynthesis

abstract:
  We follow the longterm evolution of the dynamic ejecta of neutron star
mergers for up to 100 years and over a density range of roughly 40 orders of
magnitude. We include the nuclear energy input from the freshly synthesized,
radioactively decaying nuclei in our simulations and study its effects on the
remnant dynamics. Although the nuclear heating substantially alters the
longterm evolution, we find that running nuclear networks over purely
hydrodynamic simulations (i.e. without heating) yields actually acceptable
nucleosynthesis results. The main dynamic effect of the radioactive heating is
to quickly smooth out inhomogeneities in the initial mass distribution,
subsequently the evolution proceeds self-similarly and after 100 years the
remnant still carries the memory of the initial binary mass ratio. We also
explore the nucleosynthetic yields for two mass ejection channels. The dynamic
ejecta very robustly produce "strong" r-process elements with $A > 130$ with a
pattern that is essentially independent of the details of the merging system.
From a simple model we find that neutrino-driven winds yield "weak" r-process
contributions with $50 < A < 130$ whose abundance patterns vary substantially
between different merger cases. This is because their electron fraction, set by
the ratio of neutrino luminosities, varies considerably from case to case. Such
winds do not produce any $^{56}{\rm Ni}$, but a range of radioactive isotopes
that are long-lived enough to produce a second, radioactively powered
electromagnetic transient in addition to the "macronova" from the dynamic
ejecta. While our wind model is very simple, it nevertheless demonstrates the
potential of such neutrino-driven winds for electromagnetic transients and it
motivates further, more detailed neutrino-hydrodynamic studies. The properties
of the mentioned transients are discussed in more detail in a companion paper.


title: "A combinatorial universal $\star$-product" is incorrect

abstract:
  A very short note, explaining the error in the original paper, which renders
its central result incorrect.

categories: math-ph math.AT math.KT math.MP math.QA math.SG


title: An imaginary PBW basis for quantum affine algebras of type 1

abstract:
  Let $\hat{\mathfrak g}$ be an affine Lie algebra of type 1. We give a PBW
basis for the quantum affine algebra $U_q(\hat{\mathfrak g})$ with respect to
the triangular decomposition of $\hat{\mathfrak g}$ associated with the
imaginary positive root system.


title:
Polynomial Expansion Monte Carlo Study of Frustrated Itinerant Electron
  Systems: Application to a Spin-ice type Kondo Lattice Model on a Pyrochlore
  Lattice

abstract:
  We present the benchmark of the polynomial expansion Monte Carlo method to a
Kondo lattice model with classical localized spins on a geometrically
frustrated lattice. The method enables to reduce the calculation amount by
using the Chebyshev polynomial expansion of the density of states compared to a
conventional Monte Carlo technique based on the exact diagonalization of the
fermion Hamiltonian matrix. Further reduction is brought by a real-space
truncation of the vector-matrix operations. We apply the method to the model
with spin-ice type Ising spins on a three-dimensional pyrochlore lattice, and
carefully examine the convergence in terms of the order of polynomials and the
truncation distance. We find that, in a wide range of electron density at a
relatively weak Kondo coupling compared to the noninteracting bandwidth, the
results by the polynomial expansion method show good convergence to those by
the conventional method within reasonable numbers of polynomials. This enables
us to study the systems up to 4x8^3 = 2048 sites, while the previous study by
the conventional method was limited to 4x4^3 = 256 sites. On the other hand,
the real-space truncation is not helpful in reducing the calculation amount for
the system sizes that we reached, as the sufficient convergence is obtained
when most of the sites are involved within the truncation distance. The
necessary truncation distance, however, appears not to show significant system
size dependence, suggesting that the truncation method becomes efficient for
larger system sizes.


title:
The long-term evolution of neutron star merger remnants - II.
  Radioactively powered transients

abstract:
  We use 3D hydrodynamic simulations of the long-term evolution of neutron star
merger ejecta to predict the light curves of electromagnetic transients that
are powered by the decay of freshly produced r-process nuclei. For the dynamic
ejecta that are launched by tidal and hydrodynamic interaction, we adopt grey
opacities of 10 cm$^2$/g, as suggested by recent studies. For our reference
case of a 1.3-1.4 $M_\odot$ merger, we find a broad IR peak 2-4 d after the
merger. The peak luminosity is $\approx 2\times 10^{40}$ erg/s for an average
orientation, but increased by up to a factor of 4 for more favourable binary
parameters and viewing angles. These signals are rather weak and hardly
detectable within the large error box (~100 deg$^2$) of a gravitational wave
trigger. A second electromagnetic transient results from neutrino-driven winds.
These winds produce `weak' r-process material with $50 < A < 130$ and abundance
patterns that vary substantially between different merger cases. For an adopted
opacity of 1 cm$^2$/g, the resulting transients peak in the UV/optical about 6
h after the merger with a luminosity of $\approx 10^{41}$ erg/s (for a wind of
0.01 $M_\odot$) These signals are marginally detectable in deep follow-up
searches (e.g. using Hypersuprime camera on Subaru). A subsequent detection of
the weaker but longer lasting IR signal would allow an identification of the
merger event. We briefly discuss the implications of our results to the recent
detection of an nIR transient accompanying GRB 130603B.


title: The NASA Exoplanet Archive: Data and Tools for Exoplanet Research

abstract:
  We describe the contents and functionality of the NASA Exoplanet Archive, a
database and tool set funded by NASA to support astronomers in the exoplanet
community. The current content of the database includes interactive tables
containing properties of all published exoplanets, Kepler planet candidates,
threshold-crossing events, data validation reports and target stellar
parameters, light curves from the Kepler and CoRoT missions and from several
ground-based surveys, and spectra and radial velocity measurements from the
literature. Tools provided to work with these data include a transit ephemeris
predictor, both for single planets and for observing locations, light curve
viewing and normalization utilities, and a periodogram and phased light curve
service. The archive can be accessed at
http://exoplanetarchive.ipac.caltech.edu.


title: A note on Besov regularity for parabolic initial boundary value problems

abstract:
  In this note we consider the initial boundary value problem for the heat
equation on cylinders based on Lipschitz domains with Besov data. We obtain a
regularity exponent for the solution that improves the rate of convergence of
nonlinear approximation methods.


title: Retrieving Cirrus Microphysical Properties from Stellar Aureoles

abstract:
  The aureoles around stars caused by thin cirrus limit nighttime measurement
opportunities for ground-based astronomy but can provide information on
high-altitude ice crystals for climate research. In this paper we attempt to
demonstrate quantitatively how this works. Aureole profiles can be followed out
to ~0.2 degrees from stars and ~0.5 degrees from Jupiter. Interpretation of
diffracted starlight is similar to that for sunlight, but emphasizes larger
particles. Stellar diffraction profiles are very distinctive, typically being
approximately flat out to a critical angle followed by gradually steepening
power-law falloff with slope less steep than -3. Using the relationship between
the phase function for diffraction and the average Fourier transform of the
projected area of complex ice crystals we show that defining particle size in
terms of average projected area normal to the propagation direction of the
starlight leads to a simple, analytic approximation representing large-particle
diffraction that is nearly independent of crystal habit. A similar analytic
approximation for the diffraction aureole allows it to be separated from the
point spread function and the sky background. Multiple scattering is
deconvolved using the Hankel transform leading to the diffraction phase
function. Application of constrained numerical inversion to the phase function
then yields a solution for the particle size distribution in the range between
~50 microns and ~400 microns. Stellar aureole measurements can provide one of
the very few, as well as least expensive, methods for retrieving cirrus
microphysical properties from ground-based observations.


title: Inverse Spin Hall Effect in NiFe / Normal Metal Bilayers

abstract:
  Spin pumping in ferromagnets provides a source of pure spin currents. Via the
inverse spin Hall effect a spin current is converted into a charge current and
a corresponding detectable DC-voltage. The ratio of injected spin current to
resulting charge current is given by the spin Hall angle. However, the number
of experiments more or less equals the number of different values for spin Hall
angles, even for the most studied normal metal platinum. This publication
provides a full study of inverse spin Hall effect and anisotropic
magnetoresistance for different NiFe(Py) / normal metal bilayers using a
coplanar waveguide structure. Angle and frequency dependent measurements
strongly suggest that spin pumping and inverse spin Hall effect can be used to
quantify spin Hall angles only if certain conditions are met. Ruling out the
anisotropic magnetoresistance as a parasitic voltage generating effect
measurements of the inverse spin Hall effect in Py/Pt and Py/Au yield spin Hall
angles of 0.09 and 0.008 respectively. Furthermore, DC-voltages at
ferromagnetic resonance for Py/Pt are studied as a function of temperature and
the results are compared to theoretical models.


title:
Radiation-driven winds of hot luminous stars. XVIII. The reliability of
  stellar and wind parameter determinations from spectral analysis of selected
  central stars of planetary nebulae and the possibility of single-star SN Ia
  progenitors

abstract:
  Context. The uncertainty in the degree to which radiation-driven winds of hot
stars might be affected by small inhomogeneities in the density leads to a
corresponding uncertainty in the determination of the atmospheric mass loss
rates from the strength of optical recombination lines. Furthermore, the
optical recombination lines also react sensitively to even small changes in the
density structure resulting from the (often assumed instead of computed)
velocity law of the outflow. This raises the question of how reliable the
parameter determinations from such lines are.
  Results. The discrepancy between the optical and the UV analyses is confirmed
to be the result of a missing consistency between stellar and wind parameters
in the optical analysis. The influence of the density (velocity field) is of
the same order as that of moderate clumping factors. Moderate clumping factors
leave the UV spectra mostly unaffected, indicating that the influence on the
ionization balance, and thus on the radiative acceleration, is small. Instead
of the erratic behavior of the clumping factors claimed from the optical
analyses, our analysis based on the velocity field computed from radiative
driving yields similar clumping factors for all CSPNs. The shock temperatures
and the ratios of X-ray to bolometric luminosity required to reproduce the
highly ionized Ovi line agree with those known from massive O stars, again
confirming the similarity of O-type CSPN and massive O star atmospheres.
  Conclusions. The similarity of the winds of O-type CSPNs and those of massive
O stars justifies using the same methods based on the dynamics of
radiation-driven winds in their analysis, thus supporting the earlier result
that several of the CSPNs in the sample have near-Chandrasekhar-limit masses
and may thus be possible single-star progenitors of type Ia supernovae.


title: Whitepaper on the DAEdALUS Program

abstract:
  This whitepaper describes the status of the DAEdALUS program for development
of high power cyclotrons as of the time of the final meeting of the Division of
Particles and Fields 2013 Community Study ("Snowmass"). We report several new
results, including a measurement capability between 4 and 12 degrees on the CP
violating parameter in the neutrino sector. Past results, including the
capability of the IsoDAR high Dm^2 antielectron neutrino disappearance search,
are reviewed. A discussion of the R&D successes, including construction of a
beamline teststand, and future plans are provided. This text incorporates short
whitepapers written for subgroups in the Intensity Frontier and Frontier
Capabilities Working Groups that are available on the Snowmass website.


title:
Homotopy colimits of classifying spaces of abelian subgroups of a finite
  group

abstract:
  The classifying space BG of a topological group $G$ can be filtered by a
sequence of subspaces $B(q,G)$, using the descending central series of free
groups. If $G$ is finite, describing them as homotopy colimits is convenient
when applying homotopy theoretic methods. In this paper we introduce natural
subspaces $B(q,G)_p$ of $B(q,G)$ defined for a fixed prime $p$. We show that
$B(q,G)$ is stably homotopy equivalent to a wedge of $B(q,G)_p$ as $p$ runs
over the primes dividing the order of $G$. Colimits of abelian groups play an
important role in understanding the homotopy type of these spaces. Extraspecial
$2$-groups are key examples, for which these colimits turn out to be finite. We
prove that for extraspecial 2-groups, $B(2,G)$ does not have the homotopy type
of a $K(\pi,1)$ space. For a finite group $G$, we compute the complex K-theory
of $B(2,G)$ modulo torsion.


title:
Two-dimensional superconducting state of monolayer Pb films grown on
  GaAs(110) in a strong parallel magnetic field

abstract:
  Two dimensional (2D) superconductivity was studied by magnetotransport
measurements on single-atomic-layer Pb films on a cleaved GaAs(110) surface.
The superconducting transition temperature shows only a weak dependence on the
parallel magnetic field up to 14 T, which is higher than the Pauli paramagnetic
limit. Furthermore, the perpendicular magnetic field dependence of the sheet
resistance is almost independent of the presence of the parallel field
component. These results are explained in terms of an inhomogeneous
superconducting state predicted for 2D metals with a large Rashba spin
splitting.


title:
Wavelength Measurements of K Transitions of Oxygen, Neon, and Magnesium
  with X-ray Absorption Lines

abstract:
  Accurate atomic transition data are important in many astronomical research
areas especially in line spectroscopy study. Whereas transition data of He-like
and H-like ions (i.e., ions at high-charge states) are accurately calculated,
that of K transitions of neutral or low-ionized metal elements are still very
uncertain. Spectroscopy of absorption lines produced in the interstellar medium
(ISM) has been proven to be an effective way to measure the central wavelengths
of these atomic transitions. In this work we analyze 36 Chandra High Energy
Transmission Grating observations and search for and measure the ISM absorption
lines along sight lines of 11 low-mass X-ray binaries. We correct the Galactic
rotation velocity to the rest frame for every observation and then use two
different methods to merge all the corrected spectra to a co-added spectrum.
However the co-added spectra obtained by these methods exhibit biases, either
to the observations of high counts or high signal-to-noise ratios of the lines.
We make Bayesian analysis to several significantly detected lines to obtain the
systematic uncertainty and the bias correction of other lines. Compared to
previous studies (e.g., Yao et al. 2009), our results improve the accuracy of
wavelengths by a factor from two to five and significantly reduce the
systematic uncertainties and biases. Several weak transitions (e.g., 1s--2p of
Mg IV and Mg V; 1s--3p of Mg III and Mg V) are also detected for the first
time, albeit with low significance; future observations with improved accuracy
are required to confirm these detections.


title: Framework for Ubiquitous Social Networks

abstract:
  This paper presents a novel framework for ubiquitous social networks (USNs).
Instead of making virtual connections, on the basis of human social networks,
an effort has been made to facilitate interactions among human social networks
with the help of virtual social networks. The imperative domains that support
ubiquitous social networks are highlighted and different scenarios are provided
to project real world applications of proposed framework. Our proposed
framework can provide preliminary foundations for creating ubiquitous social
networks in true essence.


title: Rigidity of the Reducibility of Gevrey Quasi-periodic Cocycles on U(n)

abstract:
  We consider the reducibility problem of cocycles $(\alpha,A)$ on $\T^d\times
U(n)$ in Gevrey classes, where $ \alpha$ is a Diophantine vector. We prove
that, if a Gevrey cocycle is conjugated to a constant cocycle $(\alpha,C)$ by a
suitable measurable conjugacy $(0,B)$, then for almost all $C$ it can be
conjugated to $(\alpha,C)$ in the same Gevrey class, provided that $A$ is
sufficiently close to a constant. If $B$ is continuous we obtain it is Gevrey
smooth. We consider as well the global problem of reducibility in Gevrey
classes when $d=1$.


title:
In-plane magnetic field dependence of cyclotron relaxation time in a Si
  two-dimensional electron system

abstract:
  Cyclotron resonance of two-dimensional electrons is studied for a
high-mobility Si/SiGe quantum well in the presence of an in-plane magnetic
field, which induces spin polarization. The relaxation time $\tau_{CR}$ shows a
negative in-plane magnetic field dependence, which is similar to that of the
transport scattering time $\tau_t$ obtained from dc resistivity. The resonance
magnetic field shows an unexpected negative shift with increasing in-plane
magnetic field.


title: Dark matter effect on the mass measurement of neutron stars

abstract:
  Newly-determined mass of 1.97 $\pm$ 0.04 $M_{\odot}$ for PSR J1614-2230 has
been a challenge for the neutron star with a hyperon core (namely hyperon
star), since hyperons usually reduce the theoretical maximum mass of the star.
In this article, we consider dark matter as another possible constituent in
hyperon stars' interior to loose this mass constrain. We take dark matter as
self-interacting Fermi gas with certain repulsive interaction among the dark
matter particles and non-interaction between dark matter and ordinary matter as
is generally assumed. We find that the star maximum mass is sensitive to the
particle mass of dark matter, and a high enough star mass larger than 2
$M_{\odot}$ could be achieved when the particle mass is small enough. In this
particular model, a strong upper limit 0.64 GeV for dark matter mass is
obtained in strongly-interacting dark matter and 0.16 GeV for dark matter mass
in weakly-interacting dark matter. Dark matter accumulated around the star
could also contribute to the mass measurement, however, such contribution could
be safely ignored when the generally used dark matter density is assumed.


title: Spectroscopy of blue horizontal branch stars in NGC 6656 (M22)

abstract:
  Recent investigations revealed very peculiar properties of blue horizontal
branch (HB) stars in \omega Centauri, which show anomalously low surface
gravity and mass compared to other clusters and to theoretical models. \omega
Centauri, however, is a very unusual object, hosting a complex mix of multiple
stellar populations with different metallicity and chemical abundances. We
measured the fundamental parameters (temperature, gravity, and surface helium
abundance) of a sample of 71 blue HB stars in M22, with the aim of clarifying
if the peculiar results found in \omega Cen are unique to this cluster. M22
also hosts multiple sub-populations of stars with a spread in metallicity,
analogous to \omega Cen. The stellar parameters were measured on low-resolution
spectra fitting the Balmer and helium lines with a grid of synthetic spectra.
From these parameters, the mass and reddening were estimated. Our results on
the gravities and masses agree well with theoretical expectations, matching the
previous measurements in three "normal" clusters. The anomalies found in \omega
Cen are not observed among our stars. A mild mass underestimate is found for
stars hotter than 14\,000 K, but an exact analogy with \omega Cen cannot be
drawn. We measured the reddening in the direction of M22 with two independent
methods, finding E(B-V)=0.35 \pm 0.02 mag, with semi-amplitude of the maximum
variation \Delta(E(B-V))=0.06 mag, and an rms intrinsic dispersion of
\sigma(E(B-V))=0.03 mag.


title:
Exact MIMO Zero-Forcing Detection Analysis for Transmit-Correlated
  Rician Fading

abstract:
  We analyze the performance of multiple input/multiple output (MIMO)
communications systems employing spatial multiplexing and zero-forcing
detection (ZF). The distribution of the ZF signal-to-noise ratio (SNR) is
characterized when either the intended stream or interfering streams experience
Rician fading, and when the fading may be correlated on the transmit side.
Previously, exact ZF analysis based on a well-known SNR expression has been
hindered by the noncentrality of the Wishart distribution involved. In
addition, approximation with a central-Wishart distribution has not proved
consistently accurate. In contrast, the following exact ZF study proceeds from
a lesser-known SNR expression that separates the intended and interfering
channel-gain vectors. By first conditioning on, and then averaging over the
interference, the ZF SNR distribution for Rician-Rayleigh fading is shown to be
an infinite linear combination of gamma distributions. On the other hand, for
Rayleigh-Rician fading, the ZF SNR is shown to be gamma-distributed. Based on
the SNR distribution, we derive new series expressions for the ZF average error
probability, outage probability, and ergodic capacity. Numerical results
confirm the accuracy of our new expressions, and reveal effects of interference
and channel statistics on performance.


title:
Variational proof of the existence of the super-eight orbit in the
  four-body problem

abstract:
  Using the variational method, Chenciner and Montgomery (2000 Ann. Math. 152
881--901) proved the existence of an eight-shaped periodic solution of the
planar three-body problem with equal masses. Just after the discovery, Gerver
have numerically found a similar periodic solution called "super-eight" in the
planar four-body problem with equal mass.
  In this paper we prove the existence of the super-eight orbit by using the
variational method. The difficulty of the proof is to eliminate the possibility
of collisions. In order to solve it, we apply the technique established by
Tanaka (1993 Ann. Inst. H. Poincar'e Anal. Non Lin'eaire 10, 215--238, 1994
Proc. Amer. Math. Soc. 122, 275--284).


title: Stable Spin State Analysis of Fe, Co, Ni-modified Graphene-ribbon

abstract:
  Magnetic graphene-ribbon is a candidate for realizing future ultra high
density 100 tera bit/inch2 class data storage media. In order to increase the
saturation magnetization, first principles DFT analysis was done for Fe, Co,
Ni-modified zigzag edge graphene-ribbon. Typical unit cell is [C32H2Fe1],
[C32H2Co1] and [C32H2Ni1] respectively. Most stable spin state was Sz=4/2 for
Fe-modified case, whereas Sz=3/2 for Co-case and Sz=2/2 for Ni-case. Magnetic
moment of Fe,Co, and Ni were 3.63, 2.49 and 1.26 {\mu}B, which can be explained
by the Hund-rule considering charge donation to neighboring carbons. Band
calculation shows half-metal like structure with a large band gap (in Co-case,
0.55eV) for up-spin, whereas very small gap (0.05eV) for down-spin, which will
be useful for many featured application like information storage, spin filter
and magneto-resistance devices. Dual layer Fe-modified ribbon shows a tube like
curved structure, which may suggest a carbon nanotube creation by Fe catalyst.


title: Experimental observation of a large ac-spin Hall effect

abstract:
  In spinelectronics the spin degree of freedom is used to transmit and store
information. Ideally this occurs without net charge currents in order to avoid
energy dissipation due to Joule heating. To this end the ability to create pure
spin currents i.e.without net charge transfer is essential. Spin pumping is the
most popular approach to generate pure spin currents in metals, semiconductors,
graphene, and even organic materials. When the magnetization vector in a
ferromagnet (FM) - normal metal (NM) junction is excited the spin pumping
effect leads to the injection of pure spin currents in the normal metal. The
polarization of this spin current is time dependent and contains a very small
dc component. The dc-component of the injected spin current has been intensely
studied in recent years and has given rise to controversial discussions
concerning the magnitude the spin Hall angle which is a material dependent
measure of the efficiency of spin to charge conversion . However in contrast to
the rather well understood dc component the two orders of magnitude larger ac
component has escaped experimental detection so far. Here we show that the
large ac component of the spin currents can be detected very efficiently using
the inverse spin Hall effect (ISHE). The observed ac-ISHE voltages are one
order of magnitude larger than the conventional dc-ISHE measured on the same
device. The spectral shape, angular dependence, power scaling behavior and
absolute magnitude of the signals are in line with spin pumping and ISHE
effects. Our results demonstrate that FM-NM junctions are very efficient
sources of pure spin currents in the GHz frequency range and we believe that
our result will stimulate the emerging field of ac spintronics.


title: Gas and dark matter in the Sculptor group: NGC 55

abstract:
  We present new, sensitive HI observations of the Sculptor group galaxy NGC 55
with the Australia Telescope Compact Array. We achieve a 5 sigma HI column
density sensitivity of 10^19 cm^-2 over a spectral channel width of 8 km/s for
emission filling the 158" x 84" synthesised beam. Our observations reveal for
the first time the full extent of the HI disc of NGC 55 at this sensitivity and
at a moderately high spatial resolution of about 1 kpc.
  The HI disc of NGC 55 appears to be distorted on all scales. There is a
strong east-west asymmetry in the column density distribution along the major
axis, suggesting that the disc is under the influence of ram-pressure forces.
We also find evidence of streaming motions of the gas along the bar of NGC 55.
The fitting of tilted rings to the velocity field reveals a strong warping of
the outer gas disc which could be the result of tidal interaction with either
NGC 300 or a smaller satellite galaxy. Finally, we find a large number of
distinct clumps and spurs across the entire disc, indicating that internal or
external processes, such as satellite accretion or gas outflows, have stirred
up the gas disc.
  We also detect several isolated HI clouds within about 20 kpc projected
distance from NGC 55. Their dynamical properties and apparent concentration
around NGC 55 suggest that most of the clouds are forming a circum-galactic
population similar to the high-velocity clouds of the Milky Way and M31,
although two of the clouds could be foreground objects and part of the
Magellanic Stream. While it is difficult to determine the origin of these
clouds, our data seem to favour either tidal stripping or gas outflows as the
source of the gas.


title: Lawvere theories, finitary monads and Cauchy-completion

abstract:
  We consider the equivalence of Lawvere theories and finitary monads on Set
from the perspective of Endf(Set)-enriched category theory, where Endf(Set) is
the category of finitary endofunctors of Set. We identify finitary monads with
one-object Endf(Set)-categories, and ordinary categories admitting finite
powers (i.e., n-fold products of each object with itself) with
Endf(Set)-categories admitting a certain class Phi of absolute colimits; we
then show that, from this perspective, the passage from a finitary monad to the
associated Lawvere theory is given by completion under Phi-colimits. We also
account for other phenomena from the enriched viewpoint: the equivalence of the
algebras for a finitary monad with the models of the corresponding Lawvere
theory; the functorial semantics in arbitrary categories with finite powers;
and the existence of left adjoints to algebraic functors.


title: Generating Stack-based Access Control Policies

abstract:
  The stack-based access control mechanism plays a fundamental role in the
security architecture of Java and Microsoft CLR (common language runtime). It
is enforced at runtime by inspecting methods in the current call stack for
granted permissions before the program performs safety-critical operations.
Although stack inspection is well studied, there is relatively little work on
automated generation of access control policies, and most existing work on
inferring security policies assume the permissions to be checked at stack
inspection points are known beforehand. Practiced approaches to generating
access control policies are still manually done by developers based on
domain-specific knowledges and trial-and-error testing. In this paper, we
present a systematic approach to automated generation of access control
policies for Java programs that necessarily ensure the program to pass stack
inspection. The techniques are abstract interpretation based context-sensitive
static program analyses. Our analysis models the program by combining a
context-sensitive call graph with a dependency graph. We are hereby able to
precisely identify permission requirements at stack inspection points, which
are usually ignored in previous study.


title:
Semantic Context Forests for Learning-Based Knee Cartilage Segmentation
  in 3D MR Images

abstract:
  The automatic segmentation of human knee cartilage from 3D MR images is a
useful yet challenging task due to the thin sheet structure of the cartilage
with diffuse boundaries and inhomogeneous intensities. In this paper, we
present an iterative multi-class learning method to segment the femoral, tibial
and patellar cartilage simultaneously, which effectively exploits the spatial
contextual constraints between bone and cartilage, and also between different
cartilages. First, based on the fact that the cartilage grows in only certain
area of the corresponding bone surface, we extract the distance features of not
only to the surface of the bone, but more informatively, to the densely
registered anatomical landmarks on the bone surface. Second, we introduce a set
of iterative discriminative classifiers that at each iteration, probability
comparison features are constructed from the class confidence maps derived by
previously learned classifiers. These features automatically embed the semantic
context information between different cartilages of interest. Validated on a
total of 176 volumes from the Osteoarthritis Initiative (OAI) dataset, the
proposed approach demonstrates high robustness and accuracy of segmentation in
comparison with existing state-of-the-art MR cartilage segmentation methods.


title:
Efficient Computation of Power, Force, and Torque in BEM Scattering
  Calculations

abstract:
  We present concise, computationally efficient formulas for several quantities
of interest -- including absorbed and scattered power, optical force (radiation
pressure), and torque -- in scattering calculations performed using the
boundary-element method (BEM) [also known as the method of moments (MOM)]. Our
formulas compute the quantities of interest \textit{directly} from the BEM
surface currents with no need ever to compute the scattered electromagnetic
fields. We derive our new formulas and demonstrate their effectiveness by
computing power, force, and torque in a number of example geometries. Free,
open-source software implementations of our formulas are available for download
online.


title:
Layer-switching cost and optimality in information spreading on
  multiplex networks

abstract:
  We study a model of information spreading on multiplex networks, in which
agents interact through multiple interaction channels (layers), say online vs.\
offline communication layers, subject to layer-switching cost for transmissions
across different interaction layers. The model is characterized by the
layer-wise path-dependent transmissibility over a contact, that is dynamically
determined dependently on both incoming and outgoing transmission layers. We
formulate an analytical framework to deal with such path-dependent
transmissibility and demonstrate the nontrivial interplay between the
multiplexity and spreading dynamics, including optimality. It is shown that the
epidemic threshold and prevalence respond to the layer-switching cost
non-monotonically and that the optimal conditions can change in abrupt
non-analytic ways, depending also on the densities of network layers and the
type of seed infections. Our results elucidate the essential role of
multiplexity that its explicit consideration should be crucial for realistic
modeling and prediction of spreading phenomena on multiplex social networks in
an era of ever-diversifying social interaction layers.


title: Introduction to Queueing Theory and Stochastic Teletraffic Models

abstract:
  The aim of this textbook is to provide students with basic knowledge of
stochastic models that may apply to telecommunications research areas, such as
traffic modelling, resource provisioning and traffic management. These study
areas are often collectively called teletraffic. This book assumes prior
knowledge of a programming language, mathematics, probability and stochastic
processes normally taught in an electrical engineering course. For students who
have some but not sufficiently strong background in probability and stochastic
processes, we provide, in the first few chapters, background on the relevant
concepts in these areas.


title: Linear perturbations in Eddington-inspired Born-Infeld gravity

abstract:
  We study the full linear perturbations of a homogeneous and isotropic
spacetime in the Eddington-inspired Born-Infeld gravity. The stability of the
perturbations are analyzed in the Eddington regime. We find that, for positive
$\kappa$, the scalar modes are stable in the infinite wavelength limit ($k=0$)
but unstable for $k\neq0$. The vector modes are stable and the tensor mode is
unstable in the Eddington regime, independent of the wave vector $k$. However,
these modes are unstable and hence cause the instabilities for negative
$\kappa$.


title:
Possible Presence and Properties of Multi Chiral Pair-Bands in Odd-Odd
  Nuclei with the Same Intrinsic Configuration

abstract:
  Applying a relatively simple particle-rotor model to odd-odd nuclei, possible
presence of multi chiral pair-bands is looked for, where chiral pair-bands are
defined not only by near-degeneracy of the levels of two bands but also by
almost the same expectation values of squared components of three
angular-momenta that define chirality. In the angular-momentum region where two
pairs of chiral pair-bands are obtained the possible interband M1/E2 decay from
the second-lowest chiral pair-bands to the lowest chiral pair-bands is studied,
with the intention of finding how to experimentally identify the multi chiral
pair-bands. It is found that up till almost band-head the intraband M1/E2 decay
within the second chiral pair-bands is preferred rather than the interband
M1/E2 decay to the lowest chiral pair-bands, though the decay possibility
depends on the ratio of actual decay energies. It is also found that chiral
pair-bands in our model and definition are hardly obtained for $\gamma$ values
outside the range $25^{\circ} < \gamma < 35^{\circ}$, although either a
near-degeneracy or a constant energy-difference of several hundreds keV between
the two levels for a given angular-momentum $I$ in "a pair bands" is sometimes
obtained in some limited region of $I$. In the present model calculations the
energy difference between chiral pair-bands is always one or two orders of
magnitude smaller than a few hundreds keV, and no chiral pair-bands are
obtained, which have an almost constant energy difference of the order of a few
hundreds keV in a reasonable range of $I$.


title:
Accuracy of MAP segmentation with hidden Potts and Markov mesh prior
  models via Path Constrained Viterbi Training, Iterated Conditional Modes and
  Graph Cut based algorithms

abstract:
  In this paper, we study statistical classification accuracy of two different
Markov field environments for pixelwise image segmentation, considering the
labels of the image as hidden states and solving the estimation of such labels
as a solution of the MAP equation. The emission distribution is assumed the
same in all models, and the difference lays in the Markovian prior hypothesis
made over the labeling random field. The a priori labeling knowledge will be
modeled with a) a second order anisotropic Markov Mesh and b) a classical
isotropic Potts model. Under such models, we will consider three different
segmentation procedures, 2D Path Constrained Viterbi training for the Hidden
Markov Mesh, a Graph Cut based segmentation for the first order isotropic Potts
model, and ICM (Iterated Conditional Modes) for the second order isotropic
Potts model.
  We provide a unified view of all three methods, and investigate goodness of
fit for classification, studying the influence of parameter estimation,
computational gain, and extent of automation in the statistical measures
Overall Accuracy, Relative Improvement and Kappa coefficient, allowing robust
and accurate statistical analysis on synthetic and real-life experimental data
coming from the field of Dental Diagnostic Radiography. All algorithms, using
the learned parameters, generate good segmentations with little interaction
when the images have a clear multimodal histogram. Suboptimal learning proves
to be frail in the case of non-distinctive modes, which limits the complexity
of usable models, and hence the achievable error rate as well.
  All Matlab code written is provided in a toolbox available for download from
our website, following the Reproducible Research Paradigm.


title:
Global smooth solution to the simplified Ericksen-Leslie system in
  dimension three

abstract:
  In this paper, we consider Cauchy problem of simplified Ericksen-Leslie
system in dimension three. We establish the unique existence of global smooth
solution under some nonlinear conditions on initial data. However, we do not
need small conditions on initial data.


title: Nonlinear dynamics in PT-symmetric lattices

abstract:
  We consider nonlinear dynamics in a finite parity-time-symmetric chain of the
discrete nonlinear Schr{\"o}dinger (dNLS) type. We work in the range of the
gain and loss coefficient when the zero equilibrium state is neutrally stable.
We prove that the solutions of the dNLS equation do not blow up in a finite
time and the trajectories starting with small initial data remain bounded for
all times. Nevertheless, for arbitrary values of the gain and loss parameter,
there exist trajectories starting with large initial data that grow
exponentially fast for larger times with a rate that is rigorously identified.
Numerical computations illustrate these analytical results for dimers and
quadrimers.


title:
Observations and three-dimensional ionization structure of the planetary
  nebula SuWt 2

abstract:
  The planetary nebula SuWt 2 (PN G311.0+02.4), is an unusual object with a
prominent, inclined central emission ellipse and faint bipolar extensions. It
has two A-type stars in a proven binary system at the centre. However, the
radiation from these two central stars is too soft to ionize the surrounding
material leading to a so far fruitless search for the responsible ionizing
source. Such a source is clearly required and has already been inferred to
exist via an observed temporal variation of the centre-of-mass velocity of the
A-type stars. Moreover, the ejected nebula is nitrogen-rich which raises
question about the mass-loss process from a likely intermediate-mass
progenitor. We use optical integral-field spectroscopy to study the emission
lines of the inner nebula ring. This has enabled us to perform an empirical
analysis of the optical collisionally excited lines, together with a fully
three-dimensional photoionization modelling. Our empirical results are used to
constrain the photoionization models, which determine the evolutionary stage of
the responsible ionizing source and its likely progenitor. The time-scale for
the evolutionary track of a hydrogen-rich model atmosphere is inconsistent with
the dynamical age obtained for the ring. This suggests that the central star
has undergone a very late thermal pulse. We conclude that the ionizing star
could be hydrogen-deficient and compatible with what is known as a PG 1159-type
star. The evolutionary tracks for the very late thermal pulse models imply a
central star mass of ~ 0.64M${}_{\odot}$, which originated from a ~
3M${}_{\odot}$ progenitor. The evolutionary time-scales suggest that the
central star left the asymptotic giant branch about 25,000 years ago, which is
consistent with the nebula's age.


title: Stability of multi-solitons in the cubic NLS equation

abstract:
  We address stability of multi-solitons in the cubic NLS (nonlinear
Schr\"{o}dinger) equation on the line. By using the dressing transformation and
the inverse scattering transform methods, we obtain the orbital stability of
multi-solitons in the $L^2(\mathbb{R})$ space when the initial data is in a
weighted $L^2(\mathbb{R})$ space.


title:
Short-wave transverse instabilities of line solitons of the 2-D
  hyperbolic nonlinear Schr\"odinger equation

abstract:
  We prove that line solitons of the two-dimensional hyperbolic nonlinear
Schr\"odinger equation are unstable with respect to transverse perturbations of
arbitrarily small periods, {\em i.e.}, short waves. The analysis is based on
the construction of Jost functions for the continuous spectrum of
Schr\"{o}dinger operators, the Sommerfeld radiation conditions, and the
Lyapunov--Schmidt decomposition. Precise asymptotic expressions for the
instability growth rate are derived in the limit of short periods.


title:
A Secure Distributed Authentication scheme based on CRT-VSS and Trusted
  Computing in MANET

abstract:
  With the rapid development of MANET, secure and practical authentication is
becoming increasingly important. The existing works perform the research from
two aspects, i.e., (a)secure key division and distributed storage, (b)secure
distributed authentication. But there still exist several unsolved problems.
Specifically, it may suffer from cheating problems and fault authentication
attack, which can result in authentication failure and DoS attack towards
authentication service. Besides, most existing schemes are not with
satisfactory efficiency due to exponential arithmetic based on Shamir's scheme.
In this paper, we explore the property of verifiable secret sharing(VSS)
schemes with Chinese Remainder Theorem (CRT), then propose a secret key
distributed storage scheme based on CRT-VSS and trusted computing for MANET.
Specifically, we utilize trusted computing technology to solve two existing
cheating problems in secret sharing area before. After that, we do the analysis
of homomorphism property with CRT-VSS and design the corresponding
shares-product sharing scheme with better concision. On such basis, a secure
distributed Elliptic Curve-Digital Signature Standard signature (ECC-DSS)
authentication scheme based on CRT-VSS scheme and trusted computing is
proposed. Furthermore, as an important property of authentication scheme, we
discuss the refreshing property of CRT-VSS and do thorough comparisons with
Shamir's scheme. Finally, we provide formal guarantees towards our schemes
proposed in this paper.


title:
Nonequilibrium time evolution of higher order cumulants of conserved
  charges and event-by-event analysis

abstract:
  We investigate the time evolution of higher order cumulants of conserved
charges in a volume with the diffusion master equation. Applying the result to
the diffusion of non-Gaussian fluctuations in the hadronic stage of
relativistic heavy ion collisions, we show that the fourth-order cumulant of
net-electric charge at LHC energy is suppressed compared with the recently
observed second-order cumulant at ALICE, if the higher order cumulants at
hadronization are suppressed compared with their values in the hadron phase in
equilibrium. The significance of the experimental information on the rapidity
window dependence of various cumulants in investigating the history of the
dynamical evolution of the hot medium created in relativistic heavy ion
collisions is emphasized.


title:
Thermalized polarization dynamics of a discrete optical waveguide system
  with four-wave mixing

abstract:
  Statistical mechanics of two coupled vector fields is studied in the
tight-binding model that describes propagation of polarized light in discrete
waveguides in the presence of the four-wave mixing. The energy and power
conservation laws enable the formulation of the equilibrium properties of the
polarization state in terms of the Gibbs measure with positive temperature. The
transition line $T=\infty$ is established beyond which the discrete vector
solitons are created. Also in the limit of the large nonlinearity an analytical
expression for the distribution of Stokes parameters is obtained which is found
to be dependent only on the statistical properties of the initial polarization
state and not on the strength of nonlinearity. The evolution of the system to
the final equilibrium state is shown to pass through the intermediate stage
when the energy exchange between the waveveguides is still negligible. The
distribution of the Stokes parameters in this regime has a complex multimodal
structure strongly dependent on the nonlinear coupling coefficients and the
initial conditions.


title:
Local Lattice Distortion Caused by Short Range Charge Ordering in
  LiMn$_2$O$_4$

abstract:
  We have performed powder neutron diffraction on $^7$Li-enriched sample of
LiMn$_2$O$_4$ at 300 K. The crystal structure determined by Rietveld analysis
is a cubic spinel with space group of $Fd\bar{3}m$ in which all Mn atoms are
crystallograghically equivalent, consistent with many preceding studies.
However, the atomic pair distrubution function (PDF) of this compound can not
be fitted by the cubic structure with space group of $Fd\bar{3}m$
satisfactorily, and it can be reproduced by the orthorhombic structure with
$Fddd$. It corresponds with the structure of charge ordered phase below about
260 K, indicating a short range charge ordering. In the local structure
determined by PDF analysis, two types of MnO$_6$ octahedra with long and short
atomic distances between Mn and O atoms exist and their Mn-O distances are
almost consistent with the distances in the charge ordered phase. From these
results, valence electrons are localized at Mn sites like a glass even in the
cubic phase, resulting in the non-metallic electrical conductivity.


title:
Nonlocal continuous variable correlations and violation of Bell's
  inequality for light beams with topological singularities

abstract:
  We consider optical beams with topological singularities which possess
Schmidt decomposition and show that such classical beams share many features of
two mode entanglement in quantum optics. We demonstrate the coherence
properties of such beams through the violations of Bell inequality for
continuous variables using the Wigner function. This violation is a consequence
of correlations between the $(x, p_x)$ and $(y, p_y)$ spaces which
mathematically play the same role as nonlocality in quantum mechanics. The Bell
violation for the LG beams is shown to increase with higher orbital angular
momenta $l$ of the vortex beam. This increase is reminiscent of enhancement of
nonlocality for many particle Greenberger-Horne-Zeilinger states or for higher
spins. The states with large $l$ can be easily produced using spatial light
modulators.


title: Fast Exact Search in Hamming Space with Multi-Index Hashing

abstract:
  There is growing interest in representing image data and feature descriptors
using compact binary codes for fast near neighbor search. Although binary codes
are motivated by their use as direct indices (addresses) into a hash table,
codes longer than 32 bits are not being used as such, as it was thought to be
ineffective. We introduce a rigorous way to build multiple hash tables on
binary code substrings that enables exact k-nearest neighbor search in Hamming
space. The approach is storage efficient and straightforward to implement.
Theoretical analysis shows that the algorithm exhibits sub-linear run-time
behavior for uniformly distributed codes. Empirical results show dramatic
speedups over a linear scan baseline for datasets of up to one billion codes of
64, 128, or 256 bits.


title: Accurate calculation of the bound states of Hellmann potential

abstract:
  Bound states of the Hellmann potential, which is a superposition of the
attractive Coulomb ($-A/r$) and the Yukawa ($Be^{-Cr}/r$) potential, are
calculated by using a generalized pseudospectral method. Energy eigenvalues
accurate up to thirteen to fourteen significant figures, and densities are
obtained through a nonuniform, optimal spatial discretization of the radial
Schr\"odinger equation. Both ground and excited states are reported for
arbitrary values of the potential parameters covering a wide range of
interaction. Calculations have been made for higher states as well as for
stronger couplings. Some new states are reported here for the first time, which
could be useful for future works. The present results are significantly
improved in accuracy over all other existing literature values and offers a
simple, accurate and efficient scheme for these and other singular potentials
in quantum mechanics.


title:
Content Distribution by Multiple Multicast Trees and Intersession
  Cooperation: Optimal Algorithms and Approximations

abstract:
  In traditional massive content distribution with multiple sessions, the
sessions form separate overlay networks and operate independently, where some
sessions may suffer from insufficient resources even though other sessions have
excessive resources. To cope with this problem, we consider the universal
swarming approach, which allows multiple sessions to cooperate with each other.
We formulate the problem of finding the optimal resource allocation to maximize
the sum of the session utilities and present a subgradient algorithm which
converges to the optimal solution in the time-average sense. The solution
involves an NP-hard subproblem of finding a minimum-cost Steiner tree. We cope
with this difficulty by using a column generation method, which reduces the
number of Steiner-tree computations. Furthermore, we allow the use of
approximate solutions to the Steiner-tree subproblem. We show that the
approximation ratio to the overall problem turns out to be no less than the
reciprocal of the approximation ratio to the Steiner-tree subproblem.
Simulation results demonstrate that universal swarming improves the performance
of resource-poor sessions with negligible impact to resource-rich sessions. The
proposed approach and algorithm are expected to be useful for
infrastructure-based content distribution networks with long-lasting sessions
and relatively stable network environment.


title: A new DFT method for atoms and molecules in Cartesian grid

abstract:
  Electronic structure calculation of atoms and molecules, in the past few
decades has largely been dominated by density functional methods. This is
primarily due to the fact that this can account for electron correlation
effects in a rigorous, tractable manner keeping the computational cost at a
manageable level. With recent advances in methodological development,
algorithmic progress as well as computer technology, larger physical, chemical
and biological systems are amenable to quantum mechanical calculations than
ever before. Here we report the development of a new method for accurate
reliable description of atoms, molecules within the Hohenberg-Kohn-Sham density
functional theory (DFT). In a Cartesian grid, atom-centered localized basis
set, electron density, molecular orbitals, two-body potentials are directly
built on the grid. We employ a Fourier convolution method for classical Coulomb
potentials by making an Ewald-type decomposition technique in terms of short-
and long-range interactions. One-body matrix elements are obtained from
standard recursion algorithms while two-body counterparts are done by direct
numerical integration. A systematic analysis of our results obtained on various
properties, such as component energy, total energy, ionization energy,
potential energy curve, atomization energy, etc., clearly demonstrates that the
method is capable of producing quite accurate and competitive (with those from
other methods in the literature) results. In brief, a new variational DFT
method is presented for atoms and molecules, \emph{completely} in Cartesian
grid.


title: Discovery of a small diameter young supernova remnant G354.4+0.0

abstract:
  We report discovery of a shell like structure G354.4+0.0 of size 1.6' that
shows morphology of a shell supernova remnant. Part of the structure show
polarized emission in NRAO VLA sky survey (NVSS) map. Based on 330 MHz, 1.4 GHz
Giant Metrewave Radio Telescope (GMRT) observations and existing observations
at higher frequencies, we conclude the partial shell structure showing
synchrotron emission is embedded in an extended HII region of size ~4'. The
spectrum of the diffuse HII region turns over between 1.4 GHz and 330 MHz. HI
absorption spectrum shows it to be located more than 5 kpc away from Sun. Based
on morphology, non-thermal polarized emission and size, this object is one of
the youngest supernova remnants discovered in the Galaxy with an estimated age
of about 100-500 years.


title: Approximating Minimum Steiner Point Trees in Minkowski Planes

abstract:
  Given a set of points, we define a minimum Steiner point tree to be a tree
interconnecting these points and possibly some additional points such that the
length of every edge is at most 1 and the number of additional points is
minimized. We propose using Steiner minimal trees to approximate minimum
Steiner point trees. It is shown that in arbitrary metric spaces this gives a
performance difference of at most $2n-4$, where $n$ is the number of terminals.
We show that this difference is best possible in the Euclidean plane, but not
in Minkowski planes with parallelogram unit balls. We also introduce a new
canonical form for minimum Steiner point trees in the Euclidean plane; this
demonstrates that minimum Steiner point trees are shortest total length trees
with a certain discrete-edge-length condition.


title:
Large Size Telescope camera support structures for the Cherenkov
  Telescope Array

abstract:
  The design of the camera support structures for the Cherenkov Telescope Array
(CTA) Large Size Telescopes (LSTs) is based on an elliptical arch geometry
reinforced along its orthogonal projection by two symmetric sets of stabilizing
ropes. The main requirements in terms of minimal camera displacement, minimal
weight, minimal shadowing on the telescope mirror, maximal strength of the
structures and fast dynamical stabilization have led to the application of
Carbon Fibre Plastic Reinforced (CFPR) technologies. This work presents the
design, static and dynamic performance of the telescope fulfilling critical
specifications for the major scientific objectives of the CTA LST, e.g. Gamma
Ray Burst detection.


title:
Vortex-induced negative magnetoresistance and peak effect in narrow
  superconducting films

abstract:
  In framework of Ginzburg-Landau model it is shown that narrow superconducting
film with width w ~ 3-8 \xi(T) (\xi(T) is a temperature dependent coherence
length) exhibits unusual transport properties. In the absence of bulk pinning
its critical current Ic nonmonotonically depends on perpendicular magnetic
field H and has one minima (dip) and one maxima (peak) at some magnetic fields.
At currents I << Ic(H) the finite magnetoresistance R(H) of such a samples due
to thermo-activated vortex hopping via edge barriers also shows both local
maxima(peak) and minima(dip) nearly at the same magnetic fields. In narrower
films such an effect is absent due to absence of the vortices and in wider
films the effect is weaker due to increased vortex-vortex interaction. Finite
length of the film produces additional periodic variation in both Ic(H) and
R(H) because of discrete change in the number of the vortices, which is
superimposed on the above mentioned nonmonotonic dependence. The obtained
results are directly related to many experiments on narrow superconducting
films/bridges where such a nonmonotonic dependencies Ic(H) and R(H) were
observed.


title: Univariate subdivision schemes for noisy data

abstract:
  We introduce and analyse univariate, linear, and stationary subdivision
schemes for refining noisy data, by fitting local least squares polynomials. We
first present primal schemes, based on fitting linear polynomials to the data,
and study their convergence, smoothness, and basic limit functions. We provide
several numerical experiments that illustrate the limit functions generated by
these schemes from initial noisy data, and compare the results with
approximations obtained from noisy data by an advanced local linear regression
method. We conclude by discussing several extension and variants.


title: Integrity Verification for Outsourcing Uncertain Frequent Itemset Mining

abstract:
  In recent years, due to the wide applications of uncertain data (e.g., noisy
data), uncertain frequent itemsets (UFI) mining over uncertain databases has
attracted much attention, which differs from the corresponding deterministic
problem from the generalized definition and resolutions. As the most costly
task in association rule mining process, it has been shown that outsourcing
this task to a service provider (e.g.,the third cloud party) brings several
benefits to the data owner such as cost relief and a less commitment to storage
and computational resources. However, the correctness integrity of mining
results can be corrupted if the service provider is with random fault or not
honest (e.g., lazy, malicious, etc). Therefore, in this paper, we focus on the
integrity and verification issue in UFI mining problem during outsourcing
process, i.e., how the data owner verifies the mining results. Specifically, we
explore and extend the existing work on deterministic FI outsourcing
verification to uncertain scenario. For this purpose, We extend the existing
outsourcing FI mining work to uncertain area w.r.t. the two popular UFI
definition criteria and the approximate UFI mining methods. Specifically, We
construct and improve the basic/enhanced verification scheme with such
different UFI definition respectively. After that, we further discuss the
scenario of existing approximation UFP mining, where we can see that our
technique can provide good probabilistic guarantees about the correctness of
the verification. Finally, we present the comparisons and analysis on the
schemes proposed in this paper.


title: New facility for the (n,2g) reaction investigation at the Dalat Reactor

abstract:
  The summation amplitude of coincident pulses (SACP) method which is optimal
solution to reduce compton scatter phenomenon and pairs phenomenon in the gamma
spectra of nuclei decay gamma cascades was used. In the 1982, in comparision
with original method [1], it was improved such as the interfacing techniques,
and data analysis with aid of computer [2]. In order to get better, the
fast/slow coincidence spectroscopy system was developed into a fast coincidence
spectroscopy. It is advantageous and easy operation. The off-line measure
results with radioactive source 60-Co and on-line measure results with 35-Cl
target on the tangential channel of Dalat Research Reactor were showed the good
abilities of this spectroscopy system.


title:
Measurement-induced generation of spatial entanglement in a
  two-dimensional quantum walk with single-qubit coin

abstract:
  One of the proposals for the exploitation of two-dimensional quantum walks
has been the efficient generation of entanglement. Unfortunately, the
technological effort required for the experimental realization of standard
two-dimensional quantum walks is significantly demanding. In this respect, an
alternative scheme with less challenging conditions has been recently studied,
particularly in terms of spatial-entanglement generation [C. Di Franco, M. Mc
Gettrick, and Th. Busch, Phys. Rev. Lett. 106, 080502 (2011)]. Here, we extend
the investigation to a scenario where a measurement is performed on the coin
degree of freedom after the evolution, allowing a further comparison with the
standard two-dimensional Grover walk.


title:
The initial results of research on two-step cascades in the Dalat
  research reactor

abstract:
  By the financial support of Vietnam Atomic Energy Commission and kind
cooperation of Frank Laboratory, in the year of 2005 a measure system based on
summation of amplitude pulses was established on the tangential channel of
Dalat Research Reactor. After a serial of testing, the measure system was
explored. In this, we would like to show the initial results were gotten with
36-Cl isotope.


title:
Dissociative recombination measurements of HCl+ using an ion storage
  ring

abstract:
  We have measured dissociative recombination of HCl+ with electrons using a
merged beams configuration at the heavy-ion storage ring TSR located at the Max
Planck Institute for Nuclear Physics in Heidelberg, Germany. We present the
measured absolute merged beams recombination rate coefficient for collision
energies from 0 to 4.5 eV. We have also developed a new method for deriving the
cross section from the measurements. Our approach does not suffer from
approximations made by previously used methods. The cross section was
transformed to a plasma rate coefficient for the electron temperature range
from T=10 to 5000 K. We show that the previously used HCl+ DR data
underestimate the plasma rate coefficient by a factor of 1.5 at T=10 K and
overestimate it by a factor of 3.0 at T=300 K. We also find that the new data
may partly explain existing discrepancies between observed abundances of
chlorine-bearing molecules and their astrochemical models.


title:
On chemical order and interfacial segregation in $\gamma^\prime$
  (AlAg$_2$) precipitates

abstract:
  A detailed study has been carried out on $\gamma^\prime$ (AlAg$_2$)
precipitates in Al-Ag and Al-Ag-Cu alloys to reconcile the conflicting reports
on chemical ordering and stacking faults in this phase. High angle annular dark
field scanning transmission electron microscopy and convergent beam electron
diffraction show no indication of chemical ordering on alternate basal planes
of $\gamma^\prime$ precipitates in alloys aged at 473 K for 2-23 h.
Precipitates were visible as Ag-rich regions with 1-13 fcc$\rightarrow$hcp
stacking faults, corresponding to $\gamma^\prime$ platelets with thicknesses
ranging from 0.69-6.44 nm. There were no systematically absent thicknesses.
Growth ledges with a riser height equal to the $c$-lattice parameter (0.46 nm)
were directly observed for the first time. Genuine stacking faults within the
precipitates were extremely rare and only observed in thicker precipitates. In
precipitates with 1-3 stacking faults there was also substantial Ag in the
surrounding fcc layers of the matrix, indicating that Ag strongly segregated to
the broad, planar precipitate-matrix interfaces. This segregation is
responsible for previous reports of stacking faults in $\gamma^\prime$
precipitates. The results indicate that the early stages of $\gamma^\prime$
precipitate growth are interfacially controlled.


title: Conversion of Braille to Text in English, Hindi and Tamil Languages

abstract:
  The Braille system has been used by the visually impaired for reading and
writing. Due to limited availability of the Braille text books an efficient
usage of the books becomes a necessity. This paper proposes a method to convert
a scanned Braille document to text which can be read out to many through the
computer. The Braille documents are pre processed to enhance the dots and
reduce the noise. The Braille cells are segmented and the dots from each cell
is extracted and converted in to a number sequence. These are mapped to the
appropriate alphabets of the language. The converted text is spoken out through
a speech synthesizer. The paper also provides a mechanism to type the Braille
characters through the number pad of the keyboard. The typed Braille character
is mapped to the alphabet and spoken out. The Braille cell has a standard
representation but the mapping differs for each language. In this paper mapping
of English, Hindi and Tamil are considered.


title:
Direct evidence of nuclear spin waves in Nd$_2$CuO$_4$ by
  high-resolution neutron-spin-echo spectroscopy

abstract:
  We investigated the dispersion of nuclear spin waves in Nd$_2$CuO$_4$ by
using neutron spin-echo spectroscopy at millikelvin temperatures. Our results
show unambiguously the existence of dispersion of nuclear spin waves in
Nd$_2$CuO$_4$ at T = 30 mK. A fit of the dispersion data with the spin wave
dispersion formula gave the Suhl-Nakamura interaction range to be of the order
of 10 {\AA}.


title: On Mean Field Limits for Dynamical Systems

abstract:
  We present a purely probabilistic proof of propagation of molecular chaos for
$N$-particle systems in dimension $3$ with interaction forces scaling like
$1/\vert q\vert^{\lambda}$ with $\lambda<2$ and cut-off at $q = N^{-1/3}$. The
proof yields a Gronwall estimate for the maximal distance between exact
microscopic and approximate mean-field dynamics. This can be used to show
propagation of molecular chaos, i.e. weak convergence of the marginals to the
corresponding products of solutions of the respective mean-field equation
without cut-off in a quantitative way. Our results thus lead to a derivation of
the Vlasov equation from the microscopic $N$-particle dynamics with force term
arbitrarily close to the physically relevant Coulomb- and gravitational forces.


title:
Occupancy distributions arising in sampling from Gibbs-Poisson abundance
  models

abstract:
  Estimating the number $n$ of unseen species from a $k-$sample displaying only
$p\leq k$ distinct sampled species has received attention for long. It requires
a model of species abundance together with a sampling model. We start with a
discrete model of iid stochastic species abundances, each with Gibbs-Poisson
distribution. A $k-$sample drawn from the $n-$species abundances vector is the
one obtained while conditioning it on summing to $k$% . We discuss the sampling
formulae (species occupancy distributions, frequency of frequencies) in this
context. We then develop some aspects of the estimation of $n$ problem from the
size $k$ of the sample and the observed value of $P_{n,k}$, the number of
distinct sampled species. It is shown that it always makes sense to study these
occupancy problems from a Gibbs-Poisson abundance model in the context of a
population with infinitely many species. From this extension, a parameter
$\gamma $ naturally appears, which is a measure of richness or diversity of
species. We rederive the sampling formulae for a population with infinitely
many species, together with the distribution of the number $P_{k}$ of distinct
sampled species. We investigate the estimation of $\gamma $ problem from the
sample size $k$ and the observed value of $P_{k}$. We then exhibit a large
special class of Gibbs-Poisson distributions having the property that sampling
from a discrete abundance model may equivalently be viewed as a sampling
problem from a random partition of unity, now in the continuum. When $n$ is
finite, this partition may be built upon normalizing $% n$ infinitely divisible
iid positive random variables by its partial sum. It is shown that the sampling
process in the continuum should generically be biased on the total length
appearing in the latter normalization. A construction with size-biased sampling
from the ranked normalized jumps of a subordinator is also supplied, would the
problem under study present infinitely many species. We illustrate our point of
view with many examples, some of which being new ones.


title:
On the nonlocal Fisher-KPP equation: steady states, spreading speed and
  global bounds

abstract:
  We consider the Fisher-KPP equation with a non-local interaction term. We
establish a condition on the interaction that allows for existence of
non-constant periodic solutions, and prove uniform upper bounds for the
solutions of the Cauchy problem, as well as upper and lower bounds on the
spreading rate of the solutions with compactly supported initial data.


title: Correlation Critical Exponents for the Six-Vertex Model

abstract:
  The six-vertex model on a square lattice is "exactly solvable" because an
exact formula for the free energy can be obtained by Bethe Ansatz. However,
exact formulas for the correlations of local bulk observables, such as the
orientation of the arrow at a given edge, are in general not available. In this
paper we consider the isotropic "zero-field" six-vertex model at small
|\Delta|. We derive the large-distance asymptotic formula of the arrow-arrow
correlation, which displays a power law decay and an anomalous exponent. Our
method is based on an interacting fermions representation of the six-vertex
model and does not use any information obtained from the exact solution.

categories: cond-mat.str-el cond-mat.stat-mech math-ph math.MP math.PR


title:
Application of a cognitive-inspired algorithm for detecting communities
  in mobility networks

abstract:
  The emergence and the global adaptation of mobile devices has influenced
human interactions at the individual, community, and social levels leading to
the so called Cyber-Physical World (CPW) convergence scenario [1]. One of the
most important features of CPW is the possibility of exploiting information
about the structure of the social communities of users, revealed by joint
movement patterns and frequency of physical co-location. Mobile devices of
users that belong to the same social community are likely to "see" each other
(and thus be able to communicate through ad-hoc networking techniques) more
frequently and regularly than devices outside the community. In mobile
opportunistic networks, this fact can be exploited, for example, to optimize
networking operations such as forwarding and dissemination of messages. In this
paper we present the application of a cognitive-inspired algorithm [2,3,4] for
revealing the structure of these dynamic social networks (simulated by the HCMM
model [5]) using information about physical encounters logged by the users'
mobile devices. The main features of our algorithm are: (i) the capacity of
detecting social communities induced by physical co-location of users through
distributed algorithms; (ii) the capacity to detect users belonging to more
communities (thus acting as bridges across them), and (iii) the capacity to
detect the time evolution of communities.


title: Routing in Wireless Mesh Networks: Two Soft Computing Based Approaches

abstract:
  Due to dynamic network conditions, routing is the most critical part in WMNs
and needs to be optimised. The routing strategies developed for WMNs must be
efficient to make it an operationally self configurable network. Thus we need
to resort to near shortest path evaluation. This lays down the requirement of
some soft computing approaches such that a near shortest path is available in
an affordable computing time. This paper proposes a Fuzzy Logic based
integrated cost measure in terms of delay, throughput and jitter. Based upon
this distance (cost) between two adjacent nodes we evaluate minimal shortest
path that updates routing tables. We apply two recent soft computing approaches
namely Big Bang Big Crunch (BB-BC) and Biogeography Based Optimization (BBO)
approaches to enumerate shortest or near short paths. BB-BC theory is related
with the evolution of the universe whereas BBO is inspired by dynamical
equilibrium in the number of species on an island. Both the algorithms have low
computational time and high convergence speed. Simulation results show that the
proposed routing algorithms find the optimal shortest path taking into account
three most important parameters of network dynamics. It has been further
observed that for the shortest path problem BB-BC outperforms BBO in terms of
speed and percent error between the evaluated minimal path and the actual
shortest path.


title:
Computational Complexity Comparison Of Multi-Sensor Single Target Data
  Fusion Methods By Matlab

abstract:
  Target tracking using observations from multiple sensors can achieve better
estimation performance than a single sensor. The most famous estimation tool in
target tracking is Kalman filter. There are several mathematical approaches to
combine the observations of multiple sensors by use of Kalman filter. An
important issue in applying a proper approach is computational complexity. In
this paper, four data fusion algorithms based on Kalman filter are considered
including three centralized and one decentralized methods. Using MATLAB,
computational loads of these methods are compared while number of sensors
increases. The results show that inverse covariance method has the best
computational performance if the number of sensors is above 20. For a smaller
number of sensors, other methods, especially group sensors, are more
appropriate..


title:
Room temperature single-crystal diffuse scattering and ab initio lattice
  dynamics in CaTiSiO5

abstract:
  Single-crystal diffuse scattering data have been collected at room
temperature on synthetic titanite using both neutrons and high-energy X-rays. A
simple ball-and-springs model reproduces the observed diffuse scattering well,
confirming its origin to be primarily due to thermal motion of the atoms. Ab
initio phonons are calculated using density-functional perturbation theory and
are shown to reproduce the experimental diffuse scattering. The observed X-ray
and neutron scattering patterns are consistent with a summation of mode
frequencies and displacement eigenvectors associated with the entire phonon
spectrum, rather than with a simple, short-range static displacement. A band
gap is observed between 600 and 700 cm-1 with only two modes crossing this
region, both associated with antiferroelectric Ti-O motion along a. One of
these modes (of Bu symmetry), displays a large LO-TO mode-splitting (562-701.4
cm-1) and has a dominant component coming from Ti-O bond stretching and, thus,
the mode-splitting is related to the polarizability of the Ti-O bonds along the
chain direction. Similar mode-splitting is observed in piezo- and ferroelectric
materials. The calculated phonon dispersion model may be of use to others in
the future to understand the phase transition at higher temperatures, as well
as in the interpretation of measured phonon dispersion curves.


title:
Semimicroscopic algebraic description of $\alpha$-clustering in
  $^{22}$Ne

abstract:
  The alpha-cluster states of $^{22}$Ne are studied within the framework of the
semimicroscopic algebraic cluster model (SACM). The band structure, energy
spectrum as well as E2 and E1 transitions are calculated and are compared with
the experimental data. The results are also compared with those obtained from
two microscopic models: the deformed-basis antisymmetrized molecular dynamics
(DAMD) approach and the generator-coordinate method (GCM). It is found that the
prominent bands obtained in the latter frameworks all have equivalents in the
SACM and the agreement between the calculated spectroscopic properties is
rather good, especially for positive-parity states.


title:
From Monge-Ampere equations to envelopes and geodesic rays in the zero
  temperature limit

abstract:
  Let X be a compact complex manifold equipped with a smooth (but not
necessarily positive) closed form theta of one-one type. By a well-known
envelope construction this data determines a canonical theta-psh function u
which is not two times differentiable, in general. We introduce a family of
regularizations of u, parametrized by a positive number beta, defined as the
smooth solutions of complex Monge-Ampere equations of Aubin-Yau type. It is
shown that, as beta tends to infinity, the regularizations converge to the
envelope u in the strongest possible Holder sense. A generalization of this
result to the case of a nef and big cohomology class is also obtained. As a
consequence new PDE proofs are obtained for the regularity results for
envelopes in [14] (which, however, are weaker than the results in [14] in the
case of a non-nef big class). Applications to the regularization problem for
quasi-psh functions and geodesic rays in the closure of the space of Kahler
metrics are given. As briefly explained there is a statistical mechanical
motivation for this regularization procedure, where beta appears as the inverse
temperature. This point of view also leads to an interpretation of the
regularizations as transcendental Bergman metrics.


title:
On the geometry of the Dirac matter with the Fermionic potentials and
  its quantum properties

abstract:
  We consider the torsional completion of gravity with electrodynamics for
Dirac matter fields; we will see that these Dirac matter field equations will
develop torsionally-induced non-linear interactions, which can be manipulated
in order to be rearranged in the form of self-fermion potentials of a specific
structure: eventually we will see that these non-linear interactions result
into dynamical effects that are formally equivalent to those due to the quantum
corrections.


title: Inflationary Gravitational Waves and the Evolution of the Early Universe

abstract:
  We study the effects of various phenomena which may have happened in the
early universe on the spectrum of inflationary gravitational waves. The
phenomena include phase transitions, entropy productions from non-relativistic
matter, the production of dark radiation, and decoupling of dark
matter/radiation from thermal bath. These events can create several
characteristic signatures in the inflationary gravitational wave spectrum,
which may be direct probes of the history of the early universe and the nature
of high-energy physics.


title:
Soft Computing Framework for Routing in Wireless Mesh Networks: An
  Integrated Cost Function Approach

abstract:
  Dynamic behaviour of a WMN imposes stringent constraints on the routing
policy of the network. In the shortest path based routing the shortest paths
needs to be evaluated within a given time frame allowed by the WMN dynamics.
The exact reasoning based shortest path evaluation methods usually fail to meet
this rigid requirement. Thus, requiring some soft computing based approaches
which can replace "best for sure" solutions with "good enough" solutions. This
paper proposes a framework for optimal routing in the WMNs; where we
investigate the suitability of Big Bang-Big Crunch (BB-BC), a soft computing
based approach to evaluate shortest/near-shortest path. In order to make
routing optimal we first propose to replace distance between the adjacent nodes
with an integrated cost measure that takes into account throughput, delay,
jitter and residual energy of a node. A fuzzy logic based inference mechanism
evaluates this cost measure at each node. Using this distance measure we apply
BB-BC optimization algorithm to evaluate shortest/near shortest path to update
the routing tables periodically as dictated by network requirements. A large
number of simulations were conducted and it has been observed that BB-BC
algorithm appears to be a high potential candidate suitable for routing in
WMNs.


title:
Bose condensate inb interaction with excitations - a two-component
  space-dependent model close to equilibrium

abstract:
  The paper considers a model for Bose gases in the so-called 'high-temperature
range' below the temperature Tc, where Bose-Einstein condensation sets in.The
model is of non-linear two-component type, consisting of a kinetic equation
with periodic boundary conditions for the distribution function of a gas of
excitations interacting with a Bose condensate, which is described by a
Gross-Pitaevskii equation. Results on well-posedness and long time behaviour
are proved in a H1-setting close to equilibrium.


title:
Context-based Barrier Notification Service Toward Outdoor Support for
  the Elderly

abstract:
  Aging society has been becoming a global problem not only in advanced
countries. Under such circumstances, it is said that participation of elderly
people in social activities is highly desirable from various perspectives
including decrease of social welfare costs. Thus, we propose a mobile service
that notifies barrier information nearby users outside to lowers the anxiety of
elderly people and promote their social activities. There are barrier free maps
in some areas, but those are static and updated annually at the earliest.
However, there exist temporary barriers like road repairing and parked
bicycles, and also every barrier is not for every elder person. That is, the
elder people are under several conditions and wills to go out, so that a
barrier for an elder person is not necessarily the one for the other.
Therefore, we first collect the barrier information in the user participatory
manner and select the ones the user need to know, then timely provide them via
a mobile phone equipped with GPS. This paper shows the public experiment that
we conducted in Tokyo, and confirms the usability and the accuracy of the
information filtering.


title:
A New Approach to the Solution of Economic Dispatch Using Particle Swarm
  Optimization with Simulated Annealing

abstract:
  A new approach to the solution of Economic Dispatch using Particle Swarm
Optimization is presented. It is the progression of allocating production
amongst the dedicated units such that the restriction forced are fulfilled and
the power needs are reduced. More just, the soft computing method has received
supplementary concentration and was used in a quantity of successful and
sensible applications. Here, an attempt has been made to find out the minimum
cost by using Particle Swarm Optimization Algorithm using the data of three
generating units. In this work, data has been taken such as the loss
coefficients with the max-min power limit and cost function. PSO and Simulated
Annealing are functional to put out the least amount for dissimilar energy
requirements. When the outputs are compared with the conventional method, PSO
seems to give an improved result with enhanced convergence feature. All the
methods are executed in MATLAB environment. The effectiveness and feasibility
of the proposed method were demonstrated by three generating units case study.
Output gives hopeful results, signifying that the projected method of
calculation is competent of economically formative advanced eminence solutions
addressing economic dispatch problems.


title: Designing a Network Based System for Delivery of Remote Mine Services

abstract:
  There is a great body of work in the areas of
tele-assistance/tele-collaboration offering novel and effective ways to improve
collaboration between personnel located at a remote mine site and off-site
personnel located in major metropolitan areas. Much of this work involves the
use of high-bandwidth communications or targeted sensory experiences using
large format displays. There are also existing remote access technologies but
these suffer from limited functionality (providing text, voice, video or
one-way desktop sharing), are often poorly supported in the security-conscious
corporate environment and require complicated set up processes. There is
currently no singular piece of remote collaboration technology that is suitable
for the delivery of high-quality planning and scheduling services to clients at
a mining site from a remote operating centre. In response to this issue, as
part of a research and technology development effort between CSIRO and a mining
engineering firm, we have developed a concept of remote mining engineer (RME)
and conducted a functional requirements analysis for delivering mining
engineering services to mine sites remotely. Based on the obtained
requirements, a further study was performed to characterise existing
technologies and to identify the scope for future work in designing and
prototyping a network based system for RME. We report on the method and
findings of this study in this paper.


title: The Astrophysical Multipurpose Software Environment

abstract:
  We present the open source Astrophysical Multi-purpose Software Environment
(AMUSE, www.amusecode.org), a component library for performing astrophysical
simulations involving different physical domains and scales. It couples
existing codes within a Python framework based on a communication layer using
MPI. The interfaces are standardized for each domain and their implementation
based on MPI guarantees that the whole framework is well-suited for distributed
computation. It includes facilities for unit handling and data storage.
Currently it includes codes for gravitational dynamics, stellar evolution,
hydrodynamics and radiative transfer. Within each domain the interfaces to the
codes are as similar as possible. We describe the design and implementation of
AMUSE, as well as the main components and community codes currently supported
and we discuss the code interactions facilitated by the framework.
Additionally, we demonstrate how AMUSE can be used to resolve complex
astrophysical problems by presenting example applications.


title: CMOS Low Power Cell Library For Digital Design

abstract:
  Historically, VLSI designers have focused on increasing the speed and
reducing the area of digital systems. However, the evolution of portable
systems and advanced Deep Sub-Micron fabrication technologies have brought
power dissipation as another critical design factor. Low power design reduces
cooling cost and increases reliability especially for high density systems.
Moreover, it reduces the weight and size of portable devices. The power
dissipation in CMOS circuits consists of static and dynamic components. Since
dynamic power is proportional to V2 dd and static power is proportional to Vdd,
lowering the supply voltage and device dimensions, the transistor threshold
voltage also has to be scaled down to achieve the required performance. In case
of static power, the power is consumed during the steady state condition i.e
when there are no input/output transitions. Static power has two sources: DC
power and Leakage power. Consecutively to facilitate voltage scaling without
disturbing the performance, threshold voltage has to be minimized. Furthermore
it leads to better noise margins and helps to avoid the hot carrier effects in
short channel devices. In this paper we have been proposed the new CMOS library
for the complex digital design using scaling the supply voltage and device
dimensions and also suggest the methods to control the leakage current to
obtain the minimum power dissipation at optimum value of supply voltage and
transistor threshold. In this paper CMOS Cell library has been implemented
using TSMC (0.18um) and TSMC (90nm) technology using HEP2 tool of IC designing
from Mentor Graphics for various analysis and simulations.


title:
Reconciling small radion vacuum expectation values with massive
  gravitons in an Einstein-Gauss-Bonnet warped geometry scenario

abstract:
  In the usual 5-dimensional Randall-Sundrum scenario with warped geometry of
the extra compact dimension, the Goldberger-Wise mechanism for stabilisation of
the radius of compactification can lead to a scalar field called the radion.
The radion can have implications in TeV-scale physics, which can be especially
noticeable if its vacuum expectation value (vev) is not far above a TeV.
However a large mass of the first graviton excitation, which seems to be
suggested by recent search limit, tends to make the radion vev, far too large
in the minimal model. We show that this is not the case if a Gauss-Bonnet term,
containing higher powers of the curvature, is present in the 5-dimensional
action. As a result, a radion with vev in the range 1-1.5 TeV can be consistent
with the first graviton excitation mass well above 3 TeV.


title: Large sets of Kirkman triple systems with order $q^n+2$

abstract:
  The existence of Large sets of Kirkman Triple Systems (LKTS) is an old
problem in combinatorics. Known results are very limited, and a lot of them are
based on the works of Denniston \cite{MR0349416, MR0369086, MR535159,
MR539718}. The only known recursive constructions are an tripling construction
by Denniston \cite{MR535159}and a product construction by Lei \cite{MR1931492},
both constructs an LKTS($uv$) on the basis of an LKTS($v$).
  In this paper, we describe an construction of LKTS$(q^n+2)$ from LKTS$(q+2)$,
where $q$ is a prime power of the form $6t+1$. We could construct previous
unknown LKTS($v$) by this result, the smallest among them have $v=171,345,363$.


title:
Derivation of a true (t->0+) quantum transition-state theory. II.
  Recovery of the exact quantum rate in the absence of recrossing

abstract:
  In Part I [J. Chem. Phys. 138, 084108 (2013)] we derived a quantum
transition-state theory by taking the t->0+ (short-time) limit of a new form of
quantum flux-side time-correlation function containing a ring-polymer dividing
surface. This t->0+ limit appears to be unique in giving positive-definite
Boltzmann statistics, and is identical to ring-polymer molecular dynamics
(RPMD) TST. Here, we show that quantum TST (i.e. RPMD-TST) is exact if there is
no recrossing (by the real-time quantum dynamics) of the ring-polymer dividing
surface, nor of any surface orthogonal to it in the space describing
fluctuations in the polymer-bead positions along the reaction coordinate. In
practice, this means that RPMD-TST gives a good approximation to the exact
quantum rate for direct reactions, provided the temperature is not too far
below the cross-over to deep tunnelling. We derive these results by comparing
the long-time limit of the ring-polymer flux-side time-correlation function
with that of a hybrid flux-side time-correlation function (containing a
ring-polymer flux operator and a Miller-Schwarz-Tromp side function), and by
representing the resulting ring-polymer momentum integrals as hypercubes.
Together with Part I, the results of this article validate a large number of
RPMD calculations of reaction rates.


title: Guide to Boundary Value Problems for Dirac-Type Operators

abstract:
  We present an introduction to boundary value problems for Dirac-type
operators on complete Riemannian manifolds with compact boundary. We introduce
a very general class of boundary conditions which contains local elliptic
boundary conditions in the sense of Lopatinskij and Shapiro as well as the
Atiyah-Patodi-Singer boundary conditions. We discuss boundary regularity of
solutions and also spectral and index theory. The emphasis is on providing the
reader with a working knowledge.


title:
Large Linear Magnetoresistance and Shubnikov-de Hass Oscillations in
  Single Crystals of YPdBi Heusler Topological Insulators

abstract:
  We report the observation of a large linear magnetoresistance (MR) and
Shubnikov-de Hass (SdH) quantum oscillations in single crystals of YPdBi
Heusler topological insulators. Owning to the successfully obtained the
high-quality YPdBi single crystals, large non-saturating linear MR of as high
as 350% at 5K and over 120% at 300 K under a moderate magnetic field of 7 T is
observed. In addition to the large, field-linear MR, the samples exhibit
pronounced SdH quantum oscillations at low temperature. Analysis of the SdH
data manifests that the high-mobility bulk electron carriers dominate the
magnetotransport and are responsible for the observed large linear MR in YPdBi
crystals. These findings imply that the Heusler-based topological insulators
have superiorities for investigating the novel quantum transport properties and
developing the potential applications.