one of the common problems in reflection seismic records in the land is the existence of surface waves with high amplitude and low frequency which cause the most important parts of reflective signals to be masked. therefore, it is necessary to attenuate them by processing and acquisition methods. as it is impossible to attenuate the surface waves completely, and sometimes it is likely to damage...

A statistical survey in the H band using PIONIER-VLTI B. Lazareff1, J.-P. Berger2,1, J. Kluska3, J.-B. Le Bouquin1, M. Benisty1, F. Malbet1, C. Koen4, C. Pinte6,20, W.-F. Thi7, O. Absil5,??, F. Baron8, A. Delboulbé1, G. Duvert1, A. Isella10, L. Jocou1, A. Juhasz9, S. Kraus3, R. Lachaume11,12, F. Ménard1, R. Millan-Gabet14,15, J. D. Monnier13, T. Moulin1, K. Perraut1, S. Rochat1, F. Soulez16,17,...

We derive the generalized Hermite interpolation by using the contour integral and extend the generalized Hermite interpolation to obtain the sampling expansion involving derivatives for band-limited functions f , that is, f is an entire function satisfying the following growth condition |f(z)| ≤ A exp(σ|y|) for some A, σ > 0 and any z = x + iy ∈ C.

We obtain several new results for the complex generalized associated Lamé potential V (x) = a(a+ 1)m sn(y,m) + b(b+ 1)m sn(y +K(m),m) +f(f + 1)m sn(y +K(m) + iK ′(m),m) + g(g + 1)m sn(y + iK ′(m),m) , where y ≡ x− K(m) 2 − iK (m) 2 , sn(y,m) is a Jacobi elliptic function with modulus parameter m, and there are four real parameters a, b, f, g. First, we derive two new duality relations which, wh...

Radio-frequency application of graphene transistors is attracting much recent attention due to the high carrier mobility of graphene. The measured intrinsic cut-off frequency (f(T)) of graphene transistor generally increases with the reduced gate length (L(gate)) till L(gate) = 40 nm, and the maximum measured f(T) has reached 300 GHz. Using ab initio quantum transport simulation, we reveal fo...

The band calculation scheme for f electron compounds is developed on the basis of the dynamical mean field theory (DMFT) and the LMTO method. The auxiliary impurity problem is solved by a method named as NCAfv’, which includes the correct exchange process of the f → f virtual excitation as the vertex correction to the non-crossing approximation (NCA) for the f → f fluctuation. This method leads...

We have studied the ground-state properties of the symmetric and asymmetric one-dimensional periodic Anderson model as a function of band filling and the model parameters (V , U, and E f) using the local mean-field ~LMF! approach. We have constructed the phase diagram for both cases and have calculated the energy, local moment, and occupation number of the f level. The LMF approach can reveal t...

The electron transfer between an F − ion and Cu(111) and Ag(111) surfaces is studied by the wave packet propagation method in order to determine specifics of the charge transfer interaction between the negative ion and the metal surface due to the projected band gap. A new modeling of the F − ion is developed that allows one to take into account the six quasi-equivalent electrons of F − which a...

We report new and archival K-band interferometric uniform disk diameters obtained with the Palomar Testbed Interferometer for the eclipsing binary star Aurigae, in advance of the start of its eclipse in 2009. The observations were intended to test whether low amplitude variations in the system are connected with the F supergiant star (primary), or with the intersystem material connecting the st...

The electronic structures and band gaps of silicene (the Si analogue of graphene) adsorbed with halogen elements are studied using the density functional theory based screened exchange local density approximation method. It is found that the band gaps of silicene adsorbed with F, Cl, Br and I have a nonmonotonic change as the periodic number of the halogen elements increases. This is attributed...