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Online since: April 2021
Authors: Galina Yu. Vitkina, Andrey N. Dmitriev, Roman V. Alektorov, Elena A. Vyaznikova
Phase identification was based on the PDF2 database of the International Diffraction Data Center (ICDD).
Reducibility of pellets (%) Probe Absolute reduction rate (max oxidation) Absolute reduction rate (mass loss) Fact Absolute reduction rate of initial probe 1 70.42 59.19 70.26 0.56 2 63.23 50.06 62.74 1.32 3 59.63 69.95 59.08 1.35 Reduced pellet shooting (Figure 2, a-c) was performed at room temperature (298 K) on the D8 ADVANCE diffractometer (Cu-Kα radiation, 34 V, 40 mA, position-sensitive detector VÅNTEC-1, β filter).
The data were recorded in the angle range of 5°–90° with the step of 0.021° to 2θ and exposure at the point of no less than 2963 s.
The phase composition and crystalline structure of the sample were determined from X-ray diffraction data using the DIFFRACplus software package: EVA and the ICDD PDF4 data-base.
Vyaznikova, Reduction roasting of titaniferrous ores, Defect and Diffusion Forum. 391 (2019) 215-220
Online since: July 2014
Authors: Ahmad Fitri Yusof, Rizalman Mamat, Amir Bin Aziz, W.N. Azeem
The result shows the reduction in NOx formation when the water content in emulsified biodiesel increased from 5 % to 10%.
This were then attracted much researcher to develop various reduction techniques for air pollution control from diesel engines.
As a result, fuel saving and the reduction of NOx, PM, smoke emissions are achieved.
During the engine testing the Kane 900 gas analyzer was used to collect the emission data.
J.A., Emulsified Diesel-an Immediate and Effective Solution for Diesel Exhaust Emission Reduction, SAE Paper. 28 (2001) 259-264
Online since: March 2006
Authors: Tohru Sekino, Koichi Niihara, Zheng Yi Fu, Hao Wang, Wei Min Wang
Mullite-based nanocomposites with embedded FeCr alloy nanoparticles were synthesized by reduction of sol-gel prepared Al5.4(Fe0.8Cr0.2)0.6Si2O13 solid solution in hydrogen.
Generally, transition metal nanoparticles are prepared from soluble precursors with such methods as thermal decomposition, sonochemical decomposition, electrochemical reduction or chemical reduction [2-5].
Actually, ceramic grains can also be used as effective dispersants for preparation of metal nanoparticles by chemical reduction of ceramic solid solutions [6].
The reduction temperature is close to the melting point of iron (m.p. 1538°C).
Since it is not easy to determine the exact amount of metal phase in the samples, all the magnetic data are normalized with respect to the entire mass of the sample.
Online since: November 2018
Authors: Yan Li, Yi Ou Shen
It was found that increase the target size leads to a reduction in the maximum impact force recorded during the test.
This is due to the reduction on flexural rigidity of the larger panels.
For 50 mm and 200 mm diameter panels impact with 1.75 Joule, the peak force reduced from 2000 to 800 Newtons, which is approximately 60% reduction.
It is clear that the results offered by the two mathematical models perfectly matched with the measured data due to no obvious damage occurred on the large diameter samples.
[8] EP121-C20-53 Data Sheet from Gurit Ltd
Online since: February 2019
Authors: Vitaly Smolko, Elizaveta Antoshkina
The modification of the sand surface by means of mechanical beneficiation and ultrasonic treatment leads to reduction of complex dielectric permittivity and specific surface, thus contributing to the increase of the active centers quantity on the sands surface.
The experimental data and the calculations have demonstrated that the sands activation by means of mechanical benificiation leads to reduction of S by 5–8 %; the ultrasonic treatment with 5 minutes duration and 15 kHz frequency – by 10–14 %.
This is of great significance when using such sands in chemically set mixes, since it leads to reduction of the bonds consumption and contributes to the gas emission reduction when heating.
The studies have been accomplished for determination of the specific surface, , sands porosity, and some regularities have been determined in how the impurities and moisture can influence the parameters .The equation has been obtained for calculation of for the various quartz sands disperse systems, which provides for evaluation of this value with 5–12 % error from the experimental data and takes the effect of moisture, specific surface, porosity, impurities content into consideration.
The modification of the sand surface by means of mechanical beneficiation and the ultrasonic treatment leads to reduction of complex dielectric permittivity and specific surface, thus contributing to the increase of the active centers quantity on the sands surface.
Online since: August 2017
Authors: Tomasz Pawlik, Malgorzata Sopicka-Lizer, Daniel Michalik, Radosław Lisiecki
The aim of this research was to find out the way of the synthesis temperature reduction without deterioration of the phosphors optical properties.
Ca,Eu-a-sialon phosphor can be synthesized by the use of solid-state reaction of the mixture of the relevant nitrides and oxides [1], carbothermal reduction and nitridation [2], by gas-reduction and nitridation [3], gas-pressed sintering [4] or by microwave sintering [5].
It shows the phase composition and lattice parameters in comparison to the reference JCPDS#84-0785 data for Ca-a-sialon with m=1.3 and n=0.7 and Eu-a-sialon with m=0.67 and n=0.325.
The presented data do not explain the actual amount of nitrogen in tested sialon phosphors but the blue shift of the emission spectra of the AN-F specimen could be related to a higher oxygen content since it is accepted that the large crystal field splitting induced by the polarizing N3- anion reduces the energy difference between the ground state and the excited state of the RE ions shifting the excitation and emission bands to lower energies [12].
Xie et al., Fine yellow alpha-SiAlON:Eu phosphors for white LEDs prepared by the gas-reduction-nitridation method, Sci.
Online since: December 2012
Authors: Dong Mei Huang, Shi Jun He, Meng Lu Zhao, Zhong Min Xiong
Successively, the Lth iteration of the Rule Reduction Algorithm must reduce the lengths of P to 0. r will have no incoming arc in the TG when all paths mentioned above have been reduced their lengths to 0 by the Rule Reduction Algorithm, just like P.
So r will be removed by the Rule Reduction Algorithm based on the lemma 1.
References [1] Essam Mansour and Hagen Höpfner, An approach to detecting relevant updates to cached data using XML and active databases, in: Proc.
[3] Bae Joonsoo, Bae Hyerim, Kang Suk-Ho and Kim Yeongho, Automatic Control of Workflow Processes Using ECA Rules, IEEE Transactions On Knowledge And Data Engineering 16 (8) (2004) , pp. 1010–1023
[4] E.Baralis, S.Ceri and S.Paraboschi, Compile-Time and Runtime Analysis of Active Behaviors, IEEE Transactions on Knowledge and Data Engineering 10(3) (1998) , pp. 353– 370.
Online since: January 2009
Authors: Hamza Boukhlouf, R. Benrabaa, S. Barama, A. Barama
cm -1 (Raman shift) 960 947 914705 827 892 b) d) The temperature programmed reduction (TPR) measurements are given in Fig. 2 and Table 2.
The TPR profiles showed that the reduction of all catalysts occurred in two steps.
The following mechanism has been proposed : NiMoO4 → Ni° + NiMo alloy + MoO2 Ni° + NiMo alloy + MoO2 → Ni° + Mo° According to the literature data [7.8], the reduction of NiMoO4 continues until the metallic state.
Fig. 2: Temperature programmed reduction profiles of unsupported and supported catalysts.
This enhancement could be attributed to the in situ reduction of the solid surface by the reaction mixture during the catalytic test.
Online since: January 2005
Authors: Woo Gon Kim, Woo Seog Ryu, Hyun Hie Kim, Kee Bong Yoon
Kim's data are for type 316LN produced for a LMR in Korea.
Materials Data source Temp.
The D and q values were obtained by the best fitting of the data.
It is identified that all the data points are placed within a small scatter band.
When Yagi's and Tabuchi's data for type 316SS are used, the reduction of area was in the 20-70% ranges.
Online since: May 2015
Authors: Zhi Wen, Chen Lu, Hong Mei Liu
The data is collected through the rolling bearings data center in Case Western Reserve University.
The motor turning speed from training data is 1750 rp/min; while from test data 1772 rp/min.
The vibration data is collected through acceleration sensor. 1200 data points are collected in each second.
The data in detail is shown in Table 1.
Intelligent Data Engineering and Automated Learning.
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