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Online since: July 2011
Authors: Zhang Luo
This seems to be appropriate as the steel fiber lengths are usually larger than the grain size of concrete (Hassan Ahmad et al., 1991[4]).
The mechanical properties of SFRC are determined by a number of factors including the elastic modulus and strengths of constituents; the aspect ratio, volume fraction, orientation and distribution of steel fibers; and the nature of the interface of steel fiber/matrix bond.
Online since: July 2011
Authors: Keishi Nishio, Koya Arai, Hiroyuki Akimoto, Tohru Kineri, Tsutomu Iida
A large number of studies have investigated the thermoelectric characteristics of Mg2Si, and the output characteristics of Mg2Si and modules have been reported by Iida and others[3,4].
The Co3O4 phase disappeared at x=1.5, and a single phase of NaCo2O4 was obtained because a small amount of Na became localized at the grain boundary or evaporated during the heat treatment in the electrical furnace.
Online since: May 2011
Authors: Zheng Jun Liu, Lin Zong
The microstructure of alloy A consists of lamellar martensite, retained austenite, VC particles with exploded shape and (Fe,Cr,V)7C3 complex carbides, the (Fe,Cr,V)7C3 complex carbides are distributed on the grain boundaries with a interrupted netted structure, as illustrated in.
In Fig.3c, when the Cr content is 25% , it was found that there are a number of (Fe,Cr,V)7C3 complex carbides with hexagonal shape distributed dispersely and uniformly in the matrix.
Online since: June 2012
Authors: Zhi Hui Sui, Lei Zhang, Jia Song
After liming, symmetrically cutting the whole limed pelt along the ridge line, then cutting to a number of small leather pieces, weighing, and then adding different deliming materials to implement deliming experiment according to the following processes.
Measuring the content of calcium ion in the grain layer, middle layer and meat layer of the leather sample; specifically splitting the leather sample with an operating knife blade according to the method specified in 1.2.1, and respectively calculating the content of calcium ion of each layer.
Online since: June 2011
Authors: Zi Cheng Zhou, Sheng Tao Xing, Zi Chuan Ma, Yin Su Wu
The third vibration band, located at a weaker wave number, 410 cm-1, can be attributed to the vibration of manganese species (Mn3+) in an octahedral site [22].
The average grain size found by the intercept method ranged from 20 to 40 nm in diameter.
Online since: November 2012
Authors: Jian Bin Wang, Ji Shu Yin
According to operating mode requirement of valve, the material is 1 Cr18Ni9Ti, cladding materials used in the CoCrWB cobalt-based alloy powder and grain size of 200 ~ 300 mesh.
Termination condition: (7) Where is fitness function obtained from genetic algorithm, is the threshold, is small enough number
Online since: March 2011
Authors: Prachya Peasura
It provides the smallest number of runs with which k factors can be studied in a complete factorial design.
Experimental Design Experiments to study the main effects (Main effect), and influences together (Interaction) that affect the hardness and grain size.
Online since: May 2011
Authors: Xue Song Lu, Wei Xiang
Table 1 Basic properties of the red clay natural water content ω[%] Natural density γ[g·cm-3] proportion △s liquid limit WL[%] plastic limit WP[%] plastic index IP[%] free swelling ratio Fs[%] 24.81 1.92 2.76 57.86 24.27 33.59 60 Table 2 Granule composition of red clay less than a particular size (mm) of the soil mass percentage [%] <10 <5 <2 <1 <0.5 <0.25 <0.075 <0.05 <0.01 <0.005 <0.002 100 100 99.78 99.69 99.46 99.32 98.72 89.08 58.94 47.25 42.92 Curing materials Ionic Soil Stabilizer (commonly known as "solid roadbed") is a kind of mixed liquid that contains a number of strong ionic compounds, and it is brown-black water-soluble liquid.
Fully eliciting combined water of soil surface is replaced and the thickness of the pervasion of soil decrease, the join forces of the soil grain are enhanced.
Online since: October 2011
Authors: Xue Feng Xu, Ji Ju Guan, Rong Jun He
And a new kind of electrodeposition grinding wheel was invented by Disco Corporation [1], in which the microcapsules (5~20μm) of lubricant along with abrasive grains were deposited in electrodeposition bonding materials.
FT-IR spectra were measured on a Nicolet 6700 (Thermo, America) FT-IR spectrometer with 4cm-1 resolution and 64 scans between wave number of 4000 cm-1 and 400 cm-1.
Online since: October 2002
Authors: Nicolae Crainic, António Torres Marques
Carbon nanotube-metal-oxide composite have been prepared by hot-pressing the corresponding composite powders, in which the carbon nanotubes, mostly single or double-walled, are very homogenously dispersed between the metal-oxide grains [10.]. 2.
icnt=EP&patent_number=822163&x=25&y=10 3.
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