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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: 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: 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: 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: July 2014
Authors: Alfredo Reyes-Salazar, Eden Bojorquez, Achintya Haldar, Arturo Lopez-Barraza, J. Luz Rivera-Salas
Thus, the ductility and ductility reduction factors obtained from simplified structural representation must be taken with caution.
The effect of ductility is considered through the strength reduction factors (R).
They were obtained from the Data Sets of the National Strong Motion Program (NSMP) of the United States Geological Surveys (USGS).
Additional information on these earthquakes can be obtained from these data base.
The values of local reduction factors vary with the column location and with the particular type of local parameter.
Online since: January 2012
Authors: Kwon Soon Lee, Hyeon Seok Jang, Young Min Kim, Saehan Kim, Taeoh Lee
The noise inside KTX, or its pure tone, was outputted from SP, as shown in Fig. 4, and the input-output relation data was acquired using the noise and IO data acquisition equipment connected with microphones M0, M1, and M2.
Analyses shows that an average noise reduction index of 43.3 dB was obtained.
There was almost no difference between the average reduction index, but the 120Hz model was expected to show the biggest noise reduction in the open-space section.
The active-noise-control simulations that were performed yielded a total of 12 measured data, and only four noise data (130 cm; open-space section: window and aisle sides; tunnel section: window and aisle sides) were used in this research to characterize the low-frequency ( 120, 280, and 360 Hz) noise reduction index and to compare the noise reduction index in the open-space section with that in the tunnel section.
To summarize, the open-space section showed greater noise reduction than the tunnel section, and the 120Hz model showed the best reduction performance.
Online since: February 2012
Authors: Wen Peng Su, Feng Jiao Wang, An Qi Wang, Wei Min Zeng, Ren Jie Wang, Sun Fang Dai, Guang Hua Chen
Besides, the pipeline will wait one cycle for data loading.
Table 1 Data used for half-pixel interpolation.
So a data reuse scheme is introduced to solve this problem.
Data used for quarter-pixel interpolation.
The data buffer module is shown in Fig.7.
Online since: October 2016
Authors: Danica Louise S. Bonga, Ma. Manna Farrel B. Pinto, Mary Fatima T. Tayad
Comprehensive treatment of environments containing infectious pathogens using disinfectant nanomaterials were proposed to prevent such outbreaks.[1] Nanoparticles are defined as small particles with sizes ranging from 1 to 100 nm.[2] These nanomaterials are of great interests in the industry and academe due to their interesting and diverse properties which deviate from their bulk counterparts.[3] Metallic nanoparticles have size and shape-dependent properties for applications such as catalysis, optics, and data storage.
Another approach is through chemical reduction wherein the Ag NPS are produce by reduction of Ag ions to Ag(0).
XRD and EDS data shows peaks for Ag, confirming its presence in the montmorillonite.
“Nano-silver – A Review of Available Data and Knowledge Gaps in Human and Environmental Risk Assessment.”
“Preparation of Silver-Montmorillonite by Reduction with Formaldehyde and Borohydride.”
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: February 2007
Authors: Y. Xu, Hong Sun, Nan Huang
Bloodcompatibility Improvement of Titanium Oxide Film Modified by Hydrogen Plasma Reduction Y.
Ti/O ratio of Ti-O film from the XPS data vary with depth under different reduction temperature and time.
Hydrogen plasma reduction experimental parameters of Ti-O films are shown in Table 2.
It was believed that non-stoichiometric TiO2_x films were obtained by hydrogen plasma reduction.
It was apparent that reduced effect becomes stronger with the increasing of hydrogen reduction temperature and time.
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