Xuzhou Institute of Technology

About: Xuzhou Institute of Technology is a education organization based out in Xuzhou, China. It is known for research contribution in the topics: Catalysis & Computer science. The organization has 1696 authors who have published 1521 publications receiving 13541 citations.

Fast Display Algorithm of Large Map File Based on Memory Mapping File Technique

Abstract: This paper presents a Fast display Algorithm of large Map File based on memory mapping file technique, designing for reducing the number of pointer moves and the data in memory scheduling ,The algorithm uses a memory-mapped file access operation of a large-scale map file to resolve the problem of traditional file processing methods, which can not read more than 2G map image file; combined image pyramid technology to apply different resolutions depending on the display requirements map image, in order to achieve the purpose of roaming quickly. The experiment and analysis results show that the algorithm is able to achieve the best resolution real-time roaming of large-scale digital map.

Geometries and properties of the heterobimetallic phosphido-bridged complex:

Abstract: Geometries and properties of the complex are investigated theoretically through HF and DFT methods. Computational results reveal that the most accurate structural parameters can be predicted at the B2PLYP/SDD level of theory. AIM and NBO analyses are performed to investigate the nature of the Mo–W and the metal-carbonyl interaction in . It is confirmed that there is a Mo–W bond and a semi-bridging carbonyl group in the complex. The formation of the Mo–W bond accompanies the dominant charge transfer interactions: BD(1)Mo1–W2 → BD*(1)Mo1–W2 and BD(2)Mo1–W2 → BD*(2)Mo1–W2. The real interaction between W and the CO ligand coordinated to molybdenum explains the observed IR ν(CO) band at 1876 cm–1 at room temperature and δ(13CO) at 218.69 ppm at 210 K.

Energy, fine structure, hyperfine structure, and transitions for the high-lying multi-excited 4Pe,o states of B-like ions

Abstract: The energies of the high-lying multi-excited states 1s22s2pnl and 1s22p2nl 4Pe,o (n ≥ 2) for B-like C+, N2+, F4+, and Mg7+ ions are calculated using Rayleigh–Ritz variation method with multiconfiguration interaction, and the inclusion of mass polarization and relativistic corrections. The fine structure and hyperfine structure for these systems are investigated using first-order perturbation theory. The configuration structure of the high-lying multi-excited series is identified not only by energy, but also by its contribution to normalization of the angular spin components, and it is further tested by the addition of relativistic corrections and fine structure splittings. Transition wavelengths including the quantum electrodynamic effects and higher-order relativistic corrections are determined.

Study Optimization of Thermal Analysis of Anisotropic Materials in 3D Field Based on One-Dimensional Heat Conduction Equation Model

Abstract: Taking the optimization design of working uniform for high-temperature operation as an example, this paper studies the optimization of thermal analysis of anisotropic materials in 3D field. Firstly, one-dimensional heat conduction equation model is established to integrate partial differential equations and separate the variables. Then thermal resistance analysis and finite difference method are used to simulate the temperature values. Finally, Tikhonov regularization method is selected to regularize the inversion method, and Generalized crossover criterion to determine the regularization parameters. The results show that this method is of great significance in optimizing the thickness design of anisotropic materials.