The mere location of a Beat Cepheid model in a Period Ratio vs. Period diagram (Petersen diagram) puts very tight constraints on its metallicity Z. The Beat Cepheid Peterson diagrams are revisited with linear nonadiabatic turbulent convective models, and their accuracy as a probe for stellar metallicity is evaluated. They are shown to be largely independent of the helium content Y , and they ar...

To enable correct statistical inference, the knowledge about the existence of moments is crucial. The objective of this paper is to study the existence of the moments for the ratio Y X Z / = , where X and Y are arbitrary random variables with the additional assumption 0 ) 0 ( = = Y P . We present three existence theorems showing that specific behaviour of the distribution of Y in the neighbourh...

The method of moments (MOM) provides a highly efficient approach to tracking particle populations, be they aerosols or cloud droplets. In the case of aerosols the method is a statistically based alternative to bin-sectional and modal approaches [Wright et al., 2000]. In the case of clouds, where moments are often the desired product of a simulation for comparisons with radar and satellite obser...

I n image processing, moments are useful tools for analyzing shapes. Suppose that the input grey image with size N N has been compressed into the compressed image using the block representation, where the number of blocks used is K, commonly KoN due to the compression effect. This paper presents an efficient OðN ffiffiffiffi K p Þ-time algorithm for computing moments on the compressed image dir...

We study the effect of the Higgs-exchange diagram for the lepton flavor violating muon-electron conversion process in nuclei in the supersymmetric seesaw model. The contribution is significant for a large value of tanβ and a small value of a neutral heavy Higgs boson mass, in which case the ratio of the branching ratios of B(μN → eN)/B(μ → eγ) is enhanced. We also show that the target atom depe...

Availability changes with crank angle at the optimum engine operating point of 4000 rpm and WOT for CNG fuelling, CNG and gasoline engine operations at optimal engine conditions with the equivalence ratio Φ = 1.1, distribution of fuel availability of CNG and gasoline fuelled engine at equivalence ratio of Φ = 1.1, entropytemperature diagram for the engine optimal operating point and CNG fuellin...

Using a cluster extension of the dynamical mean-field theory (CDMFT) we map out magnetic phase diagram anisotropic square lattice Hubbard model with nearest-neighbor intrachain $t$ and interchain $t_{\perp}$ hopping amplitudes at half-filling. A fixed value next-nearest-neighbor $t'=-t_{\perp}/2$ removes nesting property Fermi surface stabilizes paramagnetic metal in weak-coupling regime. In is...

The paper theoretically investigates the peculiarities of energy diagram of asymmetric graded-band-gap superlattices with linear coordinate dependences of band gap and electron affinity. For calculating the energy diagram of asymmetric graded-band-gap superlattices, linearized Poisson's equation has been solved for the two layers forming a period of the superlattice. The obtained coordinate dep...

Statistical recognition techniques have already been shown to achieve good performance in automatic gait recognition. However, the metrics were only statistical in nature and did not describe the intimate nature of gait. Accordingly, new velocity moments have been developed to describe an object and its motion throughout an image sequence. These moments are an extended form of centralised momen...