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Online since: December 2014
Authors: Xue Tan Ren, Yuan Cheng Teng, Lai Guang Hou, Guo Long Wang, Yan Chun Liu, Shui Hui Chen
The TiC powders were synthesized by carbothermal reduction of TiO2 in vacuum using the titania and carbon black as raw materials.
In order to solve these problems, the formation of TiO2 powders by carbothermal reduction in vacuum was researched.
The possibility of synthesizing TiC powders by carbothermal reduction of TiO2 in vacuum was researched in previous literatures [11].
In this experiment, the reaction temperature of carbothermal reduction of TiO2 decreases obviously when the system pressure declines [12].
The pattern were compared to the international center for diffraction data (ICDD) – powder diffraction files (PDF) database.
Online since: September 2015
Authors: Mahmoud A.M. Albreem, Azuwa binti Ali
Reduced Complexity Optimum Detector For Block Data Transmission System Using An Lattice Sphere Detection Technique Mahmoud A.
This paper proposes an An Lattice Sphere Detection (AnLSD) technique for detection in block data transmission systems (BDTS).
Introduction A block-by-block data transmission scheme is an efficient way of transmitting data over time- dispersive channels while reducing Inter-Symbol-Interference (ISI).
Reference [9] used channel A tested with 20 bit data.
Ghani, ”Reduced complexity optimum detector for block data transmission systems”, IEICE Elctron.
Online since: March 2013
Authors: Ming Hao Fang, Zhao Hui Huang, Yang Ai Liu, Bin Ma, Shu Sen Chen
Porous silicon was obtained via magnesiothermic reduction from the leach residue.
Magnesiothermic reduction pathway, known to have a much lower reacting temperature than carbothermal reduction, is demonstrated to convert leaching products from serpentine into porous silicon.
The leach residue had been converted into silicon and MgO by magnesiothermic reduction.
Because of MgO dissolution and drying process, BET and BJH data showing the pore volume and surface area of porous silicon are different from those of the amorphous silica.
Ren, et al, Fabrication of high surface area mesoporous silicon via magnesiothermic reduction for drug delivery, J.
Online since: October 2014
Authors: Ren Yuan Yuan, Fu Dong Sun
Keywords: low noise; asphalt concrete; noise reduction principle; safety performance.
Table 1 Experimental results of vibration noise reduction in JinRongJie project Measurement data measurement pos.
This shows that porous asphalt pavement has a better noise reduction effect
Therefore, the total noise reduction effect is about 3-5dB [4]
After years of use, the pores are blocked of the pavement, the noise reduction effect will decrease, and it can also reach 2-3dB [7].
Online since: March 2015
Authors: Xian Zheng Gong, Xian Ce Meng, Su Ping Cui, Li Li Zhao, Zhi Hong Wang, Chen Li
The inventory data of Chinese coal-fired power generation in 2009 without denitration technology applications were measured.
The output data include the CO, N2O, CH4, CO2, NOx, PM and SO2 emissions.
However, their studies cannot provide updated data on emissions reduction due to lack of 600 MW or more turbo-generator sets early time.
The inventory data of Chinese coal-fired power generation in 2009 were selected as the baseline in a case study due to the lack of denitration technology applications at that time and the large power demand and generation.
Results and Discussion Data collection.
Online since: November 2012
Authors: Bao Zhen Cui, Ze Bing Wang, Hong Xia Pan
The wavelet transform provides an effective method for signal noise reduction.
Therefore, wavelet noise reduction [2] has become the leader in signal noise reduction.
Local wave decomposition [3] is a completely data-driven algorithm.
So the local wave decomposition is feasible that is used as a method of signal adaptive noise reduction.
Ensemble empirical mode decomposition: a nosie assisted data analysis method.
Online since: September 2013
Authors: Corrado lo Storto, Gabriella Ferruzzi
This paper implements a particular type of multi-criteria method, Data Envelopment Analysis (DEA), to compare 21 conventional and renewable energy plants.
In this paper, the multiple criteria optimization problem is approached through Data Envelopment Analysis (DEA).
Both models include 2 inputs and 1 output, that are based on physical and economical data.
Data show that plants differ so much as to their productivity index.
Petersen, A Procedure for Ranking Efficient Units in Data Envelopment Analysis, Management Science, Vol. 39 (1993), pp. 1261–1264
Online since: February 2008
Authors: Jia Lin Sun, Wen Bin Cao, Fu Wang, Rong Liang He
China a tswangfu@163.com, bwbcao@mater.ustb.edu.cn Keywords: Silicon carbide, Carbothermal reduction, Partial pressure.
In this paper, SiC powders were synthesized by carbothermal reduction of silica sol with amylum.
However, according to the data listed in reference [12], reaction (3) becomes thermodynamically favorable when the partial pressure of CO is larger than 0.027 MPa and the temperature is higher than 1300 °C.
Then the carbothermal reduction proceeds according to reaction (2) and forms SiC particles.
Conclusions SiC powders were synthesized by carbothermal reduction silica sol with amylum as reactants.
Online since: January 2007
Authors: Young Do Kim, Kyu Hwan Lee, Gil Su Kim, Baek Hee Lee, Young Jung Lee
Reduction of Co3O4 primarily occurred near 300˚C and reduction of Fe2O3 occurred near 400˚C.
Change of XRD patterns with (a) milling time and (b) reduction temperature.
%Co alloy powders prepared by hydrogen reduction are shown in Fig. 4.
The saturation magnetization values are 214 and 216 emu/g which were correspond to the data of the reference [7].
-15000 -10000 -5000 0 5000 10000 15000 -300 -200 -100 0 100 200 300 -300 -250 -200 -150 -100 -50 0 50 100 150 200 250 300 -10 0 10 Magnetic field (Oe) Magnetization (emu/g) Fe-20at.% Co Reduction Fe-50at.% Co Reduction Magnetic field (Oe) Magnetization (emu/g) Fe-20at.% Co Reduction Fe-50at.% Co Reduction Fig . 4.
Online since: April 2014
Authors: Fu Xian Zhu, Chao Tian, Zong An Luo, Ji Yuan Liu
Strain and stress distribution data was obtained from four portions at the thickness direction.
In the multi-pass simulation with nearly 10% per-pass reduction, the core metal yield when the total reduction was 40%.
There were eight passes in the rolling simulation, the reduction procedure was shown in Table.2 (t0 is the previous thickness, t is subsequent thickness, ε is the reduction), the highest single pass reduction was 14%[10].
The plastic deformation is in trend of uniform when total reduction reaches a proper value, as the 60% reduction in this simulation
Grill, Recalculation of Flow Stresses from Industrial Process Data for Heavy Plate Rolling Using a 2D Finite Element Model, Steel Res.
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