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Online since: August 2017
Authors: Manish Kewalramani, Osama Ahmed Mohamed, Waddah Al Hawat
Ramadoss P. [1] conducted a review on considerable number of data that were collected from pervious published papers to study the correlation between compressive strength, flexural strength, and split tensile strength.
(4) Esquinas et. al [5] conducted and experimental study to investigate the effect of using fine grain wastes generated in asphalt plant on the properties of self-consolidated concrete.
A total number of 21 experimental data sets were collected from four studies which include the flexural tensile strength and splitting tensile strength of SCC.
Online since: June 2010
Authors: Da Jin Yu
China's livestock breeding was blind, intensive and suburban-based, and farming pursue efficient development model, which produce a huge number of agricultural wastes.
It is only suitable for a certain size agricultural production, such as the major producer of farming, livestock breeding and aquaculture grain, or the transactions among villages.
(2) The number of tradable emissions permit in agricultural production need complete rationality, but our current practice is sub-block management.
Online since: April 2012
Authors: Guido Schmitz, Andriy Gusak, Nadiya Storozhuk
Theories of flux-driven coarsening (Flux-Driven Ripening and Flux-Driven Grain Growth) had been suggested by one of present authors (AMG) together with King Ning Tu [5-6].
The flux of clusters in the size space is given by combination of the diffusion and drift terms: (a), , (b) (2a, b) with f being a number of clusters the size of n per a unit volume of a system.
Let be an area of interfaces i/A and i/B, – atomic volume in the IMC-phase, so that is a number of atoms of IMC.
Online since: December 2014
Authors: Jörg Neumeyer, Egbert Baake, Aleksandr Nikanorov
An induction seam annealing installation can be integrated in the welding line to achieve a homogeneous grain structure on the whole circumference.
High-frequency alternating current offers a number of benefits as energy source for generating the heat required for the welding process.
Fig. 3 Algorithm of transient coupled electromagnetic-thermal analysis with the tube movement For numerical simulation the continuously running physical heating process is replaced by big enough number of time steps.
Online since: August 2011
Authors: Zi Xin Zhu, Jun Zhong Zheng, Dong Chen
The filter core can be washed automatically without disassembling by the pulsating compressed air which blow out from the lumen of the filter core to the wall of the washing bucket forms oscillation air flow.And then, the washing liquid containing a large number of metal debris enter the particle counting system to complete the amount and size distribution analysis of these metal debris.
An in-line laser particle counter is designed based on light-blocking theory and installed in the fluid pipeline which can count continuously and analyze the number and size distribution of the debris.
Abrasive Grain Analysis(in Chinese).
Online since: December 2019
Authors: Yury R. Krivoborodov, Svetlana V. Samchenko
Despite the large number of works aimed at improving the efficiency of cement stone hardening, the problem of controlling the hardening of cement is relevant.
The degree of hydration of cement with additives Curing time, days The degree of hydration, [%] PC control sample With an additive 1 [CaO + Al2(SO4)3] With an additive 2 [Ca(OН)2 + Al2(SO4)3] 1% 3% 5% 1% 3% 5% 3 days 62 65.4 68.2 70.5 63.6 67.4 70 28 days 68.7 71.1 73.5 81.4 71.4 75.4 77 An increase in the hydration rate is due to a decrease in the shielding effect of hydrated shells on cement grains due to the growth of new growth crystals on crystallization substrates in the space between particles, as well as the rapid removal of hydration products from the reaction sphere.
As a result, the density and the number of contacts between individual hydrates increase, which contributes to a decrease in the porosity of the cement stone.
Online since: January 2014
Authors: Bo Tang, Xiao Guang Zhao
The farmers suffered economic loss of tens of thousands Yuan every year; In Wanghuageda village of Yongxing office more than 26.8 hm2 of irrigated land became wastelands, and half of the mountain lands only“grew grass instead of grain”.
Planning on the (set) the mining numbers are 23 [5]
By the end of 2007, the area has been set up 58 mining areas and cumulative ascertain reserves of 50.98 billion tons of coal resources, coal reserves of 4.75 billion tons, the planning on the (set) the mining numbers are 10 [5]
Online since: January 2014
Authors: Wen Zhi He, Jing Cheng Xu, Guang Ming Li, Wen Qing Wu, Ying An, Jing Jing Chen
The KW is rich in sugar, carbohydrate, protein, fat and other nutrients which mainly come from grain, meat, bone, eggs and other animal tissue [5,6].
Acknowledgments The study was supported by Grant of State Science and Technology Support Program (Program number: 2010BAK69B24) and Grant of Shanghai Science and Technology Committee (Program number: 10dz0583201).
Online since: January 2013
Authors: Jiao Long He, Zhong Ai Jiang, Yong Zhou
The main features of the rock are as follows: Tailings waste ①(Q4ml): Brown yellow-brown gray, mainly including cohesive soil, also including a few bricks, gravel, artificial fill in the product, the structure is loose,a little wet-wet, thick layer is from 1.0 m to 3.1 m;Tailings waste ②(Q4ml): Black brown-the dark grey, including a large number of ashes,clip a small gravel,the structure is loose,a little wet-wet,buried depth is from 1.0 m to 3.1 m,the thickness of layer is from 5.8 m to 11.9 m.Tailings waste ③(Q4ml): Black brown-the dark grey,including a large number of ashes, clip a small gravel,the structure is loose,a little wet-wet,buried depth is from 7.2 m to 13.5 m,the thickness of layer is from 6.7 m to 18.9 m;Round gravel ④(Q1al): tan,mainly including quartz and qualitative debris,medium weathering,circular,the quantity of the grain whose size is greater than 2 mm is about 55%,mainly including cohesive soil,cementation is better,median density,wet,only in the zk2,the thickness
Online since: August 2014
Authors: Tatjana Ulyanenkova, Andrei Benediktovitch, Vladimir V. Uglov, Vladimir A. Skuratov, Alexander Ulyanenkov, Sergey Zlotski
The dpa/ion (8×10–8 dpa/s cm–2) was determined as a number of vacancies/ion/angstrom, calculated using SRIM code for Ed = 40 eV, divided per number of ions in the layer with area of one cm2 and one angstrom thickness.
Here, elongated grains (size are about 0.5 mm) and dense oxide nanoparticles were observed.
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