There has been significant interest in studying the asymptotics of certain generalised moments, called moments characteristic polynomials random Haar-distributed unitary and symplectic matrices, as matrix size N goes to infinity. These quantities depend on two parameters k q when both them are positive integers it shown that these fact N. In this paper we classify integer roots moreover prove t...

movement of pesticides through soils to groundwater and surface water has long been considered a potentially serious environmental problem in different parts of the world. remediation of such problems requires monitoring of site specific data. considering these facts a laboratory based investigation was carried out to determine the sorption and leaching parameters of two contrasting and widely ...

In this paper, the quaternion Bessel-Fourier moments are introduced. The significance of phase information in quaternion Bessel-Fourier moments is investigated and an accurate estimation method for rotation angle is described. Furthermore, a new set of invariant descriptors based on the magnitude and the phase information of quaternion Bessel-Fourier moments is derived. Experimental results sho...

In this paper, we propose a Artificial Neural Network(ANN) based scheme for Object recognition.The invariance properties of geometric moments as well as lower order moments corresponding to partially occluded objects are used to train a feedforward ANN. The trained neural network is used to predict the actual moments from the moments of the object with different occlusions. The object is recogn...

In this paper we propose a new descriptor for birds search. First, our work was carried on the choice of a descriptor. This choice is usually driven by the application requirements such as robustness to noise, stability with respect to bias, the invariance to geometrical transformations or tolerance to occlusions. In this context, we introduce a descriptor which combines the shape and color des...

We study analytically and numerically the corrections to scaling in turbulence which arise due to nite size eeects as anisotropic forcing or boundary conditions at large scales. We nd that the deviations m from the classical Kol-mogorov scaling m = m=3 of the velocity moments hju(k)j m i / k ?m decrease like m (Re) = c m Re ?3=10. If, on the contrary, anomalous scaling in the inertial subrange ...

The classical Vlasov-Poisson-Landau system describes dynamics of a collisional plasma interacting with its own electrostatic …eld as well as its grazing collisions. Such grazing collisions are modeled by the famous Landau (Fokker-Planck) collision kernel, proposed by Landau in 1936. We construct global unique solutions to such a system for initial data which have small weighted H norms, but can...

For TRECVID 2008 concept detection task, we principally focus on: (1) Early fusion of texture, edge and color features TECM, abbreviation of the combined TF*IDF weights based on SIFT features, Edge Histogram, and Color Moments. (2) To improve the training efficiency and explore the knowledge between concepts or hidden sub-domains more easily and efficiently, we propose a novel method based on L...