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Online since: June 2010
Authors: Hai Gang Wang, Yong Ming Song, Hua Gao, Qing Wen Wang
The post-consumer plastics used in this work were in the form of grains and were purchased from a trader in plastic wastes.
When the plastics were grafted by MAH, the compatibility between the wood fiber and plastic is improved and the anhydride groups react with the surface hydroxyl groups of the wood fiber, so the number of the free hydroxyl groups reduced, which in turn decreases the water absorption.
Online since: December 2012
Authors: Yi Ting Chen, Hong Guang Cheng, Xiao Pu, Chen Ye Lin
Introduction Sanjiang plain is the major commodity grain bases located in northeast China.
The above phenomena showed that if the number of colloid in soil is fixed, the mere increase of amorphous iron oxide may bring about the increase of adsorbate’s adsorption capacities.
Online since: December 2016
Authors: Patrik Bayer, Tomáš Žižlavský, Martin Vyšvařil
A number of authors have studied the influence of aggregate composition on lime mortars.
Dolomitic lime 66.35 0.51 0.71 0.32 0.18 7.23 0.13 0.02 0.01 0.05 0.01 0.12 24.87 Aggregate S 0.00 98.50 1.58 0.15 0.02 0.03 0.00 0.09 0.01 0.09 0.06 0.04 0.12 Aggregate L 51.03 1.76 0.95 0.22 0.05 0.45 0.05 0.76 0.15 0.08 0.03 0.27 42.77 Limestone fines 54.73 0.81 0.32 0.10 0.01 0.39 0.01 0.03 0.01 0.08 0.00 0.02 43.99 Fig. 1 Grain size distribution of the aggregates and the filler.
Online since: February 2022
Authors: Sergey V. Byvaltsev
The production of such a wire from titanium alloys is associated with a number of technological difficulties [10].
Several factors affect the hardness of the material, the concentration of substituted and embedded elements, microstructure, grain size, phase types, crystallographic orientation in which deformation occurs, and the type of processing [28, 29].
Online since: March 2023
Authors: O.N. Chernyshev, N.P. Lukutsova, A.A. Lukash, E.Yu. Gornostaeva
The strategy for the development of the forest complex of the Russian Federation until 2030 aims to increase the capacity for deep processing of wood for the production of competitive products from low-quality, deciduous and fine-grained wood, as well as from logging and woodworking waste, which will contribute to the effective management of forest resources [1].
A characteristic feature of microcrystalline cotton pulp is a highly developed hydrophilic surface with a large number of active hydroxyl groups, as well as its ability to swell and interact with water to form a stable hydrogel with water-retaining properties.
Online since: November 2022
Authors: Jagadeesh Bagali, N.V. Nanjundaradhya, Ramesh S. Sharma
The thickness of the sheet, pitch distance (number of welds for given length) and spot size are determined by the designer depending on the application.
Solidification pattern with weld grains oriented outwards from nugget centre ensures good penetration.
Online since: October 2015
Authors: Pavel Mec, Jana Boháčová, Josef Koňařík, Petr Závrský
It is a natural quartz sand fraction 0/2 mm with rounded grains having a silica content of at least 98 % of weight.
The type of methods of preparation are obvious from the number type of mixture.
Online since: July 2015
Authors: Christian Eckardt, Christian Gadelmeier, Dorde Jovanovic, Jens Schmidt, Marek Zietkowski, Marek Gorywoda
Pore diameters of up to 100 µm were detected, which are comparable to the grain size of the bulk material.
It was found that due to the significant number of defects, all variants of mullite and Al2O3 laser-joints show a much lower Weibull modulus than the reference materials.
Online since: December 2006
Authors: Kwang Ho Kim, Jang Hyun Sung, Yung Hee Kim, Chang Yong Kang, Dae Kyoung Yoo, Hea Joeng Lee
Owing to the nitrogen permeating preferentially along the grain boundaries, the martensitic phase is formed along these boundaries (b).
The optical micrographs show that the precipitate is coarsened and the number of precipitates increases at a tempering time of 7 hrs (b); however further coarsening of the precipitate is not observed until the tempering time reaches 30 hrs.
Online since: November 2011
Authors: Xing Long Zhou, Xiang Wang, Xiao Ming Zhang, Luo Xiao Qing
It is also divided into single spiral and double spiral types according to the number of spiral [2].
The feed concentration of spiral classifier generally is about 40%-50%, the sink of particles in the classification area inside the zone of sinking is typical hindered settling, in which the collision opportunities of the particles is everywhere and electricity agglomerated phenomenon is universal, a great deal of tiny particles mixed up with the coarse and heavy grain class to sink to the bottom of sorting tank which is moved to the sand discharge hole by the revolving spiral and leads to the sand contains much more fine materials and get lower classification efficiency.
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