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Online since: July 2022
Authors: Driss Abouelaoualim, Rabi Takassa, Omar Farkad, El Alami Ibnouelghazi
The results are in a good agreement with previous calculations [33]. 3.2 Electronic band structure It is well known that the electronic band structure and the DOS are important quantities for determining the electronic properties and crystalline structure of materials [34].
The DOS results for all structures are presented in the fig.1 and 2.
Electronic structure of graphene tubules based on C60.
[37] Salehi, H., and Gharbavi, K., Ab Initio Study of Electronic Properties of a Armchair (7,7) Carbon Nanotube, Advances in Materials Physics and Chemistry, 2 (2012) 159-162
Quasiparticle band structure of carbon nanotubes.
Online since: September 2019
Authors: Jiang Shan, Daniyar Kairalapov, Sergei Chakhlov, Sergei Osipov
Analysis of the Possibility of Determining the Internal Structure of Oil and Gas Pipes by CT Method Sergei Osipov1,a, Sergei Chakhlov1,b*, Jiang Shan1,c and Daniyar Kairalapov1,d 1Tomsk Polytechnic University, 30 Lenin Avenue, 634050 Tomsk, Russia aosip1809@rambler.ru, bchakhlov@tpu.ru, c981484268@qq.com, dkairalapovd@gmail.com Keywords: oil and gas pipes, bremsstrahlung, digital radiography, computed tomography, non-monoenergy artifact, metal artifact, ADC capacity.
The difference lies in the fact that for CT evaluation of the internal structure over the TO section a significant number of angles is necessary [24-26].
Here, the internal structure is understood as the distribution of the informative parameter by TO volume, which may be, for example, the density r.
Choice of the compensating filter profile in images restoration for objects with annular structures in X-ray computational tomography.
Macromolecular Chemistry and Physics 209(19) (2008) 1976-1982
Online since: March 2008
Authors: Waldemar Wołczyński
A possibility of a modification of the Jackson-Hunt theory of an oriented structure formation is analysed.
The boundary conditions are formulated to establish the stability of lamellar structure formation under steady-state conditions.
An instability of a lamellar structure formation is also the subject of current analysis (Fig. 2a).
Moreover, an improved concentration field is adequate for the description of a stable formation of a directional eutectic structure.
Some perturbations of the separation of both liquids can scarcely lead to unstable growth of the directional structure, Fig. 2a.
Online since: February 2016
Authors: Lian Yu Wei, Zhong Lu Cao, Makoto Hibino, Hao Yu Chen
In the field reinforced concrete structures, the presence of chloride on the surface of steel is mainly duo to the penetration or diffusion of chloride ions from the external environments.
In the real reinforcing concrete structures, due to the existance of large cathode and small anode, the higher anodic chloride content could accelerate the macrocell corrosion.
The harmful effect of higher anodic chloride content on the macrocell corrosion of steel in the real reinforcing concrete structures could be confirmed.
Goda, Effect of Nitrite Inhibitor on the Macrocell Corrosion Behavior of Reinforcing Steel, Journal of Chemistry 2015 (2015) 1-15
Jiang, Effect of corrosion layer of steel bar in concrete on time-variant corrosion rate, Materials and Structures 42 (2009) 1443-1450
Online since: October 2014
Authors: Klaas van Breugel, Nguyen van Tuan
What is meant is, at least, that a material only performs in a structure.
The structure of the particles, however, is completely different.
Journal of Chemistry, 37, PCA Res.
Congress on Chemistry of Cement, Rio de Janeiro, Vol.
Mateterials and Structures, Vo,. 45, No. 11, pp 1705-1716 (2012)
Online since: January 2009
Authors: Bertil Sundqvist
However, the data showed that the structure of phase III did not agree with any of the structures predicted by calculations [40,41,43].
The lattice was found to be different from the theoretically predicted Pnma structure, having a BaSO4 type structure instead of the predicted LiBH4 α structure.
This structure was found to be stable up to 10.3 GPa, above which a γ phase with an orthorhombic Pbca structure should exist.
Claudy, in: Solid State Chemistry 1982, edited by R.
Schoonman, volume 3 of Studies in Inorganic Chemistry, Elsevier Scientific Publishing Company, Amsterdam (1983)
Online since: June 2022
Authors: Michel Aillerie, Rabeb Belghouthi, Khaoula Amri, Rached Gharbi
Basic Device Structure The perovskite photovoltaic solar cell structure considered in this work is presented in Fig.1, It possesses a typical solar cell structure in a n-i-p planar configuration with Methyl Ammonium lead Iodide CH3NH3PbI3 as perovskite layer sandwiched between HTM and ETM layers and external electrodes, i.e. an Au back contact layer and an ITO front contact layer.
Schematic structure of simulated perovskite solar cell.
Batentschuk, Effect of water vapor content during the solid state synthesis of manganese-doped magnesium fluoro-germanate phosphor on its chemistry and photoluminescent properties, Opt.
Gong, Nano-structured electron transporting materials for perovskite solar cells, Nanoscale 8(2016) 6209–6221
You, Planar‐Structure Perovskite Solar Cells with Efficiency beyond 21%, Adv.
Online since: May 2015
Authors: Luiz Eduardo Melo Lima, Eugênio Spanó Rosa
The objective of this work is to realize a sensitivity analysis of the wall shear model (based on the intermittent behavior of the gas and liquid structures) to the correlations for frequency and slug holdup in the one-dimensional, steady state mixture model applied to an isothermal gas-liquid mixture flowing in the slug regime.
Shrier, Slug frequency in horizontal gas-liquid slug flow, Industrial & Engineering Chemistry Process Design and Development 11 (1972) 317-318.[18] N.I.
Online since: November 2005
Authors: J. Gil Sevillano, Wolfgang Bleck, Hélène Petitgand, P. Álvarez, C. Lesch, Joachim Schöttler
Non-equiaxed structures are obtained in a Nb-Ti HSIF steel and in a plain LC (0.135%C) (CM) steel due to their higher Mn content.
Very fine structures with grain sizes in the order of 1 to 4 µm have been produced by DIFT in a wide variety of steel chemistries [2,3].
ISO2 and DC04 grades presented equiaxed ferritic structures after cooling rates up to about 200ºC/s.
This made possible the use of very fast cooling rates without the formation of non-equiaxed structures.
Distorted structures generated at peak temperatures above Ac1 using moderate cooling rates.
Online since: October 2014
Authors: Shuang Quan Liao, Peng Qu, Rong Jie Zhou, Bo Xiang Wang, Long Mei Wu
The surface structure of the natural rubber latex particle is postulated as shown in Figure 7 [8].
Fig. 7 Two Possible Models for the Surface Structure of the Rubber Latex Particle.
The plyisopene was cladding by double-layer which formed with protein and phospholipids that is so called shell-core structure.
Base on transmission electron microscopy analysis, Gomez and Subramaniam estimated the surface structure to ca.10 nm [51].
Pichayakorn: Procedia Chemistry.