Magnetic excitations of the quasi-1D S = 1/2 Heisenberg antiferromagnet (HAF) Cs2CuCl4 have been measured as a function of magnetic field using neutron scattering. For T < 0.62 K and B=0 T the weak inter-chain coupling produces 3D incommensurate ordering. Fields greater than BC =1.66 T, but less than the field ( ≃ 8 T) required to fully align the spins, are observed to decouple the chains, and ...

The peak of the polynomial Wigner–Ville distribution (PWVD) has been recently proposed as an estimator of the instantaneous frequency (IF) for a monocomponent polynomial frequency modulated (FM) signal. In this paper, we evaluate the statistical performance of this estimator in the case of additive white Gaussian noise and provide an analytical expression for the variance. We show that for a gi...

We realized single-mode hole-assisted optical fiber (HAF) cord whose fiber has a superior bending loss characteristic that complies with ITU-T Recommendation G. 657 for use in highly reliable optical fiber distribution facilities in central offices. The cord has an excellent anti-shock characteristic, and can be detected with a conventional optical fiber cord identifier despite its very low ben...

Forecasts of 96 shocks in the solar wind at the L1 point made by the HAF kinematic solar wind model made between 5 February and 31 December 2001 are compared to algorithmically determined shocks from real-time data from the SWEPAM and MAG instruments aboard the ACE spacecraft. Traditional measures of forecast skill used by the meteorological community are applied to these forecasts and observat...

 In conventional photonic crystal fibers (PCF’s),the cladding structure is usually formed by air holes with the same diameter arrayed in regular triangular lattice. However, in index guiding PCF’s means in Hole Assisted Fiber, the periodicity in the cladding region is not essential to confine the guiding light in to the high-index core region. Hole Assisted Fiber (HAF) technology is investigat...

Hepatitis A virus (HAV) replicates relatively slowly in cell culture without a cytopathic effect, a fact that limits the use of tissue culture assays. The radioimmunofocus assay is the standard method for HAV titration, although it is labor intensive and requires the use of radioisotopes. A simple, rapid and objective infectivity assay based on an in situ enzyme immunoassay (EIA) is described h...

Background Influenza virus infections cause seasonal epidemics, affecting millions of people worldwide. The World Health Organization (WHO) estimates ∼300,000-500,000 deaths per year worldwide due to seasonal influenza and more than $26.8-87.1 billion/year in healthcare costs in the United States alone [1]. Influenza, a segmented RNA virus achieves part of its ongoing virulence as a result of i...

This study presents a novel method for estimating the heat-attributable fractions (HAF) based on cross-validated best temperature metric. We analyzed association of eight metrics (mean, maximum, minimum temperature, maximum during daytime, nighttime, and mean, apparent temperature) with mortality performed cross-validation to select model in selected cities Switzerland South Korea from May Sept...

The input of Multi-H are point correspondences with local affine transformations and the epipolar geometry. We use Matching On Demand with view Synthesis (MODS) method [3] since it provides accurate local affinities, the fundamental matrix F and point correspondences consistent with F. Using Homography from Affine transformation and Fundamental matrix (HAF) method [1] a homography is estimated ...

Ischemic heart disease (IHD) is a major factor influencing worldwide mortality rates. Furthermore, IHD has become a significant health problem among the Thai population. Stem cell therapy using mesenchymal stem cells (MSCs) is an alternative therapeutic method that has been applied to improve the quality of life of patients. Amniotic fluid (AF) contains a heterogeneous cell population, includin...