Search:

  • Data Reduction

Search Options

Sort by:

Publication Type:

Open access:

Publication Date:

Periodicals:

Search results

Online since: September 2007
Authors: B. Matović, A. Devečerski, A. Radosavljević-Mihajlović, A. Egelja, M. Pošarac
Fabrication of SiC by Carbothermal-Reduction Reactions of Sepiolite A.
Abstract The objective of this manuscript was to investigate the synthesis of SiC by carbothermal- reduction reactions of sepiolite.
The most promising candidate for obtaining a large variety of non-oxide products for important technical uses is carbothermal-reduction reaction (CRR) [4].
Due to its composition and high surface area, it can be used as an Si precursor for the synthesis of SiC powder by carbothermal-reduction reaction (CRR) by mixing it with one of reducing agents.
Only when phenol-formaldehyde resin (as a precursor of carbon) was used, good quality SiC was obtained in rather mild conditions (1673 K, 1h) when compared with the literature data (T=1773-2273K) [8].
Online since: April 2021
Authors: Marina V. Potapova, A.M. Stolyarov, Ye.A. Buneyeva
The research studies the influence of soft reduction of a slab on the inner structure of a billet.
Soft reduction of the slabs was carried out in the 12 and 13 segments of the secondary cooling zone.
Change in the content of phosphorus and niobium in thickness of slabs cast with soft reduction () and without reduction (): the position of the upper freeze line (------) at the time of the start (1) and the end (2) of the soft reduction application The figure shows two vertical dotted lines characterizing the position of the upper freeze line inside the work piece at the beginning and the end of the soft reduction.
These data were obtained by calculation using the dependence of the square root.
Data on the maximum value of zonal chemical inhomogeneity degree of tube metal impurities, cast with soft reduction , and without external impact These data allow concluding that the maximum value of the degree of zonal inhomogeneity of most impurities is higher in the cobbled metal than in the metal without external influence.
Online since: December 2012
Authors: Li Wang, Shao Wu Yin, Li Ge Tong, Xia Chen, Shu Feng Sun, Xian Fang Yue, Li Fang Zheng
In 2009, the total CO2 emission from China was 7710.5 million tons (Mt) [[] International data carbon dioxide emission; U.S.
The uncertainty of reduction rate for the ratio of peak–flat difference is 0.5%, 1.0% and 1.5%, respectively, when the uncertainty of statistical data is 10%, 20% and 30%.
The uncertainty of reduction rate for the ratio of peak–valley difference is 0.5%, 1.0% and 1.6%, respectively, when the uncertainty of statistical data is 10%, 20% and 30%.
The uncertainty of reduction rate is 0.01%, 0.01% and 0.02%, respectively, when the uncertainty of statistical data is 10%, 20% and 30%.
The uncertainty is 0.002%, 0.004% and 0.006%, respectively, when the uncertainty of statistical data is 10%, 20% and 30%.
Online since: November 2011
Authors: Lian Ping Chen, Yuan Hong Gao, Jian Gao Yang, Bai Tao Su
This hints that the reduction mechanism might be different.
During the reduction of WO3 or Na2WO4 through the ball milling, the incomplete reduction should be considered.
Fig. 2 gives the calculation results of the incomplete reduction of Na2WO4.
Though the reduction of many reagents can be explained by the multi-step reduction mechanism, the reduction of Na2WO4 or WO3 by ball milling seems an exception.
Hu, Handbook on the thermodynamic data of inorganic materials (2nd edition); Metallurgy Industrial Publishing House, Beijing, China, 2002.
Online since: May 2014
Authors: Xin Hong, Hua Zhang, Hui Long Fu, Shuai Niu, Yong Ren
In the smelting reduction stage, the reaction temperature was set at 1550℃.
The composition of (Cr2O3) and reduction rate of Chromium are shown in Table 3 and Table 4.
This means after 34 min’s reduction, all of the Nickel had been recovered into iron-bath, and the reduction rate is nearly 100%.
The data confirmed all of the dephosphorizer got the advantageous effect on the dephosphorization process.
[3] Bauer K H: Recycling of iron and steel works wastes using the Inmetco direct reduction process [J].
Online since: August 2013
Authors: Dan Liu, Jian Mei Sun
Design of the reusable data reduction tool Data set is a collection of data, is the object of data mining.
Data reduction tools can be called by data mining system can also be called by other cloud applications platform to access heterogeneous data.
The design of reusable data reduction tool.
The development and implements of data reduction tool on cloud computing platform.
Then test data set is to verify the effectiveness and efficiency of data reduction tool.
Online since: July 2015
Authors: Shun Myung Shin, Jei Pil Wang, Dong Ju Shin, Sung Ho Joo
Therefore, Py is one of the most common materials for the magnetic data storage and can be found in a variety of magnetic micro and nanostructures [6,7].
Multiple step reactions for the reduction of iron and nickel oxides by hydrogen were proposed by thermodynamic program using HSC Chemistry5.1.
Experimental The reduction of iron-nickel oxide using hydrogen gas was conducted at the range of temperature from 800°C and 1000°C.
Multiple step reactions for the reduction of iron and nickel oxides by hydrogen were proposed and their data of gibbs free energy change (ΔG) were calculated by thermodynamic program given by HSC Chemistry5.1.
XRD pattern and shape of metallic powder obtained after hydrogen reduction.
Online since: June 2013
Authors: Zheng Zhong Duan
Therefore, the loss of contacting transformer reduction is the scope of technical loss reduction, and main control one is to contact the transformer's active power and reactive power with loss [6].
The simulation data is the actual operation data of the Northeast Power Grid.
It controlled and simulated the two methods, the active and reactive power and data simulation, and this two control strategies loss Reduction simple analysis confirmed its feasibility.
It also will contact the transformer active and reactive power control effectiveness and voltage regulator effect again contrast by the actual data simulation.
Power plant transformer loss reduction control strategy [J].
Online since: August 2014
Authors: Lu Zhang, Jing Wang, Run He Shi
At this point, nation-scale carbon related data are critical.
This paper introduced the acquisition of soil, vegetation and land use/land cover data at a large scale using remotely sensed data and the simulation of carbon sink/source by means of ecosystem models.
In the process of obtaining these data, remote sensing is an indispensable important mean.
These data are mainly come from remote sensing, land inventory, etc.
In these studies, remotely sensed data leveraged its strengths.
Online since: June 2014
Authors: Ya Xin Su, Yue Zhou Qi, Wen Yi Deng
The results showed that SO2 did not place negative effect on NO reduction by iron.
Su et al [12] proposed the NO reduction by metallic iron mesh rolls and experimentally studied the NO reduction by methane over iron mesh roll [13].
The results showed that SO2 did not place negative effect on NO reduction by iron.
(a) SEM image and the site to conduct the EDS (b) EDS result Element apparent concentration wt% Atom ratio,% C 0.10 2.10 6.28 O 5.92 17.96 40.37 S 0.61 3.95 4.42 Fe 9.69 75.99 48.92 total: 100.00 100.00 (c) quantitative elements data Fig 7 Local EDS analysis of the iron sample after reaction (Flow rate 1.5L/min, NO=0.05%, SO2=0.01%, CH4= 0.4%, N2 balance, 1050°C) (a) SEM image and the site to conduct the EDS (b) EDS result Element apparent concentration wt% Atom ratio, % C 0.19 3.83 9.65 O 8.23 28.30 53.55 Fe 7.10 67.87 36.80 total: 100.00 100.00 (c) quantitative elements data Fig 8 Local EDS analysis of the iron sample after reaction (Flow rate 1.5L/min, NO=0.05%, SO2=0.01%, CH4= 0.4%, N2 balance, 1050°C) Sulfur was detected at the iron surface where white attachment was produced, as showed in Fig 7.
The results showed that SO2 did not place negative effect on NO reduction by iron.
Showing 631 to 640 of 40196 items