A novel modeling method for 3D curve welding seam is presented in this paper based on a welding robot for large workpiece. The 3D curve welding seam tracking is implemented by macro and micro motion which can control translational motion of torch in a large range and implement accurate seam tracking in small range. As such, the self-teaching seam model and real-time seam model are established t...

We explore the effect of a cubic correction gNLφ 3 on the mass function and bias of dark matter haloes extracted from a series of large N-body simulations and compare it to theoretical predictions. Such cubic terms can be motivated in scenarios like the curvaton model, in which a large cubic correction can be produced while simultaneously keeping the quadratic fNLφ 2 correction small. The devia...

3D reconstruction from serial 2D microscopy images depends on non-linear alignment of serial sections. For some structures, such as the neuronal circuitry of the brain, very large images at very high resolution are necessary to permit reconstruction. These very large images prevent the direct use of classical registration methods. We propose in this work a method to deal with the non-linear ali...

Recently, perovskite-type BaTiO3 showing sharp X-ray diffraction peak comparable to that synthesized by a conventional solid-state reaction was obtained mixing Ba(OH)2 and TiO2 hydrous gel leaving the mixture at 323 K or less. However, cubic crystal system, which different from reaction. In this study, structural analysis of cubic-BaTiO3 technique conducted, factors form structure were investig...

Transition metals have long been used as catalysts in the form of dispersions stabilized on inorganic substrates such as silica gel, alumina, and activated charcoal.1 More recently, colloidal platinum nanoparticles have been used as catalysts and photocatalysts in solutions.2 Aqueous colloidal platinum particles are mostly prepared by the reduction of a platinum salt by hydrogen, photochemical,...

Colloidal lipid particles such as solid lipid nanoparticles and liquid crystalline nanoparticles have great opportunities as drug carriers especially for lipophilic drugs intended for intravenous administration. In order to evaluate drug release from these nanoparticles and determine their behavior after administration, emulsion droplets were used as a lipophilic compartment to which the transf...

We study a new problem for cubic graphs: bipartization of a cubic graph Q by deleting sufficiently large independent set I. It can be expressed as follows: Given a connected n-vertex tripartite cubic graph Q = (V,E) with independence number α(Q), does Q contain an independent set I of size k such that Q− I is bipartite? We are interested for which value of k the answer to this question is affir...

Experimental studies established that calcium undergoes several counterintuitive transitions under pressure: fcc --> bcc --> simple cubic --> Ca-IV --> Ca-V, and becomes a good superconductor in the simple cubic and higher-pressure phases. Here, using ab initio evolutionary simulations, we explore the behavior of Ca under pressure and find a number of new phases. Our structural sequence differs...