In this paper, the integro-differential equations of natural oscillations a viscoelastic ribbed truncated conical shell are obtained based on Lagrange variational equation. The general research methodology is principles mechanics and methods. Geometrically nonlinear mathematical models deformation shells obtained, considering such factors as discrete introduction edges. Based finite element met...

The quantum theory of atoms-in-molecules (QTAIM) in conjunction with the DFT/B3LYP/6-311++G(2d,2p) wave function are used to compute the atomic, bonded and non-bonded interactions, distributions of the charge density, ρ(r), and its Laplacian, ∇ρ(r), for the ground equilibrium structure of cytosine. The study has been further extended to include two conical intersection (CI) structures that unde...

Simulating astrophysical phenomena in laboratory experiments has made considerable progress with the advent of high-power lasers and z-pinch pulsed power devices. In that field of research, scaled-down laboratory jets relevant to Herbig-Haro objects capability has been demonstrated. Recently, it has been shown on the Z-pinch MAGPIE ( 2MA, 250 ns) installation of Imperial College that unique exp...

We have developed conical tomography for the transmission electron microscope to study a wide range of structures at molecular resolution. Unlike the other related types of tomography (single and double-axis tilt), conical tomography has a higher throughput and more importantly, produces reconstructions that are isotropic in the x-y plane with a resolution of 2-3nm [1]. Using a custom made tilt...

In this chapter we present a study of the large scale beam break up and filamentation of femtosecond pulses in a Kerr medium. We have experimentally monitored the formation of stable light filaments, conical emission and interactions between filaments. Three major stages lead to the formation of stable light filaments: First the beam breaks up into a pattern of connected lines (constellation), ...

The diffusion-influenced translocation behavior of individual nanoparticles upon passage through a conical nanopore has been elucidated by using a pressure-reversal, resistive-pulse technique, as reported by Lan and White in this issue of ACS Nano. We outline here some recent progress in conical nanopore analysis, and we present some prospects for future developments. Compared to cylindrical na...

Timor Island situates in the southeast end of Southeast Asia. The island accommodates many ethnic groups, which produce many diverse house types. As visiting East Timor in 2012 and Timor Island in 2014, we found the “PairHouse Type” widely spread over Timor Island. Uma Lulik (holy house), accommodating the ancestry soul, fireplace and elder’s bed, and Uma Tidor (house for sleep), containing liv...

We have previously shown how femtosecond angle- and energy-resolved photoelectron spectroscopy can be used to monitor quantum wavepacket bifurcation at an avoided crossing or conical intersection and also how a symmetry-allowed conical intersection can be effectively morphed into an avoided crossing by photo-induced symmetry breaking. The latter result suggests that varying the parameters of a ...

In this paper we describe an algorithm and a Fortran 90 module (Conical) for the computation of the conical function P −1 2+iτ (x) for x > −1, m ≥ 0, τ > 0. These functions appear in the solution of Dirichlet problems for domains bounded by cones; because of this, they are involved in a large number of applications in Engineering and Physics. In the Fortran 90 module, the admissible parameter r...

in sheet metal forming processes, one-stage production of conical-cylindrical parts with high accuracy is very difficult due to wrinkling and rupturing. hydrodynamic deep drawing assisted by radial pressure is one of the most applicable procedures in sheet hydroforming process on the point of producing conical-cylindrical parts. in this paper, forming pressure path is investigated as one of the...