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Online since: June 2020
Authors: Danial Irfachsyad, Hira Meidia
The average spatial distribution of the charged ions is also taken to follow the Boltzmann distribution, (1.3) r is the number density of the ions and r0 is the corresponding density in the bulk solution. z is the valency, y is the electrostatic potential and e is the electronic charge.
The Debye screening length (k ) is defined as (1.5) where NA is the Avogadro’s number and C is the ionic strength.
Wade, Brownian Dynamics Simulation of Protein Solutions: Structural and Dynamical Properties, Biophysical Journal Volume, 99, 3782–3791, December 2010 [13] Xuan-YuMeng, Yu Xu, Hong-Xing Zhang, Mihaly Mezei and Meng Cui, Predicting Protein Interactions by Brownian Dynamics Simulations, Journal of Biomedicine and Biotechnology, volume 2012, page 1-11, 2012 [14] Po-Hsien Lee, Volkhard Helms, and Tihamér Geyer, Coarse-grained Brownian dynamics simulations of protein translocation through nanopores, The Journal of Chemical Physics, 137, 145105, 2012 [15] David R.
Online since: October 2015
Authors: Alexey Anatolevich Vereschaka, Anatoliy Stepanovich Vereschaka, Dmitriy A. Pustovalov, Jury I. Bublikov, Boris Ya. Mokritskii, D.N. Litkin
Particular attention has been given to production of material with minimal number of pores in a ceramic layer.
Microhardness depends significantly on the ceramic composition and reaches its maximum at 6-10% AlN, which is associated with grinding of grains and reduction in porosity of ceramics.
Mechanic properties of steel 3310H σb, MPa σ0, MPa δ5,% Ψ,% KCU, J/cm2 930 735 10 45 78 The tests of plates of HGC-ceramics with Ti-TiCrN-TiCrAlSiN were carried out in machining of crown end of work pieces for gear wheels made of steel 3310H on a lathe of model 16K40.After roughing and thermal machining, work pieces for gear wheels made of steel 3310H were cemented along the entire height of gear crown (number of teeth of wheel crown z = 75, module m = 10) to depth h = 2.05-2.4 mm up to hardness HRC3>56 when hardness of base metal HRC> 30 (Fig. 2).
Online since: August 2013
Authors: Xue Rong Zhang, Kai Yong Yan, Yan Cai Chen, Dao Bing Huan, Tang Zheng Zhang
The test data and analysis Applying this experimental device, we have completed a number of electric galvanizing experiments under typical different parameters.
Table 1: Electric galvanized experiment under different plating parameters Sample number distance between anode plate and cathode plate.
There is great difference of zinc layer microstructure gained from the gravity test of galvanized under different plating parameters (distance between anode plate and cathode plate, solution flow rate, current density and electroplating time, etc.), and the change of zinc grain size and orientation follows with the change of current density, electrolyte solution flow rate and plate spacing.
Online since: June 2014
Authors: Tatiana Eugenievna Kurennykh, Anatoly Yakovlevich Fishman, G.A. Kozhina, Vladimir Borisovich Vykhodets, E.V. Vykhodets
A large number of studies have focused in particular on oxygen self-diffusion in these oxides.
The number of the incident beam particles reaching the sample was determined with an accuracy of about 1% using a secondary monitor.
Such low the values in oxides are usually observed at low temperatures [5] and associated with diffusion through fast diffusion paths, such as structural vacancies in the oxygen sublattice, grain boundaries, etc.
Online since: October 2012
Authors: Li Li Liu, Ling Xiao, Jian Ping Huang, Yu Min Shao, Hong Jie Song, Lian Cheng Wu
Table 1 DESIGN CRITERIA AND DIMENSIONS OF THE IMPROVED UASB REACTOR Parameters Value Design flows (L/h),average/maximum 10/20 Hydraulic retention time (h),average /maximum 12/24 Volumetric organic loading rate (kgCOD/(m3×d)), average /maximum 6.5/13.0 Total depth/liquid depth (m) 2.6/2.5 Diameter (m)/ number of feeding points 0.35/1 Total volume/effective volume (m3) 0.25/0.24 The wastewater was pumped into the improved UASB reactor after it passed through R1.
The wastewater used as influent to the experimental apparatus was the mixed wastewater produced from the grain distillery.
Methanosarcina barkeri were found growing nearby the surface of the granular sludge, but the number was significantly reduced.
Online since: March 2013
Authors: Norbani Abdullah, Mohamad Hafiz Mamat, Mohamad Rusop, Zuraida Khusaimi
When this precipitation exceeded the number of nuclei, multi-angular orientation building blocks will grow on substrates.
A three-dimensional growth along their axis from the limited number of nuclei will generate star-like flower structures [14].
The changes from yellow-green to orange emission was also attributed to oxygen defects and defects that took place at boundary layers of nanocrystalline grains [20, 21].
Online since: September 2016
Authors: Aleksandr A. Bobryshev, Aleksandr Lakhno, Ilnaz Khalilov, Kamil Sibgatullin, Rafael Igtisamov, Vladimir Erofeev, Lenar N. Shafigullin
The mortar mix has been made using Portland cement (grade OPC 400 D-0) and sand with grain sizes up to 1,25 [mm], in the ratio cement/sand=1/3; the powdery polymer additive (polyoxyethylene) in the amount of 1 [%] of dry mortar mass has been added to the dry mix of cement and sand.
Sun, Fatigue performance and multiscale mechanisms of concrete toughened by polymers and waste rubbe, Advances in Materials Science and Engineering. 2014 (2014) Article number 684207
Hasan, Use of epoxidized natural rubber as a toughening agent in plastics, Journal of Applied Polymer Science. 132 (29) (2015) Article number 42270
Online since: August 2019
Authors: Rezeda Yu. Galimzyanova, Maria S. Lisanevich, Ildar N. Musin, M.D. Mevliyanova, Dilyara R. Khisamieva, N.V. Pesternnikova
Despite a number of advantages that PLA has, it has one drawback - the high price.
However, now when considering the PLA market, it becomes obvious that its production is carried out by companies that process natural raw materials, which are a source of carbohydrates: corn, sugar cane and beets, grain crops, as well as companies that produce primary raw materials for the food and feed industry.
Despite a number of advantages that the PLA has, it has one major drawback - the high price.
Online since: March 2020
Authors: Ju Yuan Luo, Zhi Lin Sun, Weng Ang Xiang, Yu Meng Gong
The total number of grids is 164*81.
The small grids nested therein are encrypted, with a minimum spacing of 20m and a total grid number of 276*120.
The median grain size is approximately 0.007. -0.11mm, the largest particle size is about 0.07mm, and the particle size is relatively uniform.
Online since: February 2020
Authors: Anastasiya D. Kutyavina, Larisa N. Maskaeva, Vyacheslav F. Markov, Vladimir I. Voronin
Today, there are quite a number of methods suitable for the deposition of PbS films, including the ion successive ionic layer adsorbtion and reaction (SILAR) [10,15], vapour deposition (PVD) [8], pulsed laser deposition [16], electrodeposition [17], spray pyrolysis [18].
In literature, there is a large number of publications discussing the problems of doping lead sulphide films with Cd2+.
In article [6], it has found that the doped lead sulfide films synthesized from the plumbing reaction mixture have a dense, crack-free and more compact microstructure than the undoped PbS, with the average grain size increasing with an increase in the concentration of cadmium salt in the reaction bath.
Showing 26481 to 26490 of 28673 items