Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: February 2014
Authors: Hanum Latifa, Amalia Sholehah, Akhmad Herman Yuwono
There has been a large number of previous works carried out to synthesize the porous anatase titania, including the use of block copolymer surfactants as structure-directing template by sol-gel techniques.
However, the diffraction peaks became sharp with a rise in calcinations temperature, indicating the grain growth of TiO2 crystallites (Fig. 4b) and reducing content of carbon as F-127 organic templates in the porous TiO2.
Online since: June 2014
Authors: Frederic de Geuser, Alexis Deschamps, Eva Gumbmann, Christophe Sigli, Williams Lefebvre
This can be due to a non-ideal texture of the grains included in the analysed volume (1mm in diameter).
Vol. 50 Number 4 August 2005 Pp 193-21523
Online since: October 2013
Authors: Zhao Hui Zhang, Jie Long Liao, Fu Cai Zhao, Jian Tao Ju
The steel slag which is produced by domestic steel enterprises can not be treated in time, it makes a large number of steel slag occupy land, pollutes the environment.
Fig.3 Tank-type hot disintegrating process The characteristics of technical are as follows: (1)The amount of the particle size of steel slag which is less than 10 mm is more than 60%, to save the multistage crushing equipment of hot steel slag splashing technology; (2)The effect of separation is good, steel grade level of big grain slag is high, it makes a high rate of metal recovery and the content of metal in slag is less than 1%, to reduce the waste of metal resources; (3)Compared with other process, tank-type hot disintegrating process can let the free calcium oxide (f-CaO) and free magnesium oxide (f-MgO) in slag make hydrolysis reaction, and eliminates the unstable factors of steel slag , makes it safe and reliable in building materials and road engineering, the rate of slag utilization can be 100%; (4)Pulverized steel slag water hard mineral dicalcium silicate (C2S), tricalcium silicate (C3S) activity does not reduce, ensure the quality of steel slag; (5)The particle
Online since: January 2015
Authors: Xiao Ming Hu
There are a number of techniques for reflowing solder.
A fast cooling rate is chosen to create a fine grain structure that is most mechanically sound.[9] Unlike the maximum ramp-up rate, the ramp–down rate is often ignored.
Online since: December 2018
Authors: John Speer, Kip O. Findley, Christina Ciganik, Walther van Raemdonck
The finer pearlitic microstructure of the lead patented wire likely has a greater dislocation density after drawing due to the larger number of ferritecementite interfaces present, impeding dislocation motion during deformation [13].
The greater quantity of dislocations provides an increased driving force for recovery during aging; such a phenomenon was reported in transformation induced plasticity steels with refined grain sizes [14,15].
Online since: March 2013
Authors: Lu Sheng Chen, Huai Di Wu, Jin Chao Hu
To obtain the ZnO grain size D, the Scherrer formula[23], D = 0.9λ / B cos(β), is used, where λ is the wavelength of the X-ray used (0.15405 nm), B is the width at an intensity equal to half the maximum intensity of a diffraction peak and β is the Bragg angle of the diffraction peak considered.
The enhancement of photocatalytic activity of ZnO after graphene hybridization could be attributed to the higher separation efficiency of electron–hole pairs caused by the rapid photo-induced charge separation and the inhibition of the recombination of electron–hole pairs, resulting in the increase of the number of holes participated in the photooxidation process[27].
Online since: April 2020
Authors: Marta Yusfita Sari, Endang Saefudin, Fitri Fagatella
The composition of animal feed, which consists mostly of grains raw material such as corn, soybean, wheat, etc., is very susceptible to mycotoxin contamination.
Bioactivity of fucoidan is strongly influenced by the number of sulfate groups in their structure, which are the ion negative involve in hydrogen bonding to form between fucoidan complex that is supposed to be responsible for binding interaction with mycotoxin especially T-2 toxin in this study.
Online since: September 2025
Authors: Frédéric Allibert, Walter Schwarzenbach, Gonzalo Picun, Alexis Drouin, Eric Guiot
SiC engineered substrate +epi (right) We have demonstrated that both the number of Shockley stacking faults (SSF), the indicator that bipolar degradation takes place, and their typical size are lower in the case of SiC engineered substrate prepared through Smart Cut™, compared to the results obtained in standard SiC wafers (see fig.5).
An alternative hypothesis is that either the grain size and orientation distribution of the polycrystalline SiC is modified [19] close to the interface, or polycrystalline SiC is experiencing subcritical crack growth [20].
Online since: March 2014
Authors: Zbigniew Krajewski, Jerzy K. Kowalski, Anna Kurzych, Zbigniew Raszewski, Leszek R. Jaroszewicz
It was proved theoretically that rotation motions, especially in form of seismic rotational waves (SRW), could propagate through grained rocks; later on, this possibility was extended to rocks with microstructure or defects [3, 4], or even without any internal structure [5-7], due to the asymmetric stresses in the medium.
From above reason us experiences give the optimal method based on the following detection condition: where kL is detection threshold connected with number of averaging samples N (coupled with chosen detection bandpass) explained by mathematical relations shown in Fig. 4.
Online since: January 2013
Authors: Sheng Han, Lin Wang, Da Zhi Wang
Natural corn oil contains a large number of unsaturated fatty acids, in which the double bond is not stable, so sulfur was used to modify the double bonds and the product can effectively reduce friction, slow down wear, and the copper sheet anti-corrosion ability was significantly improve[17].
Grain and oil processing. 40(2010) ,p.16-19
Showing 27111 to 27120 of 28673 items