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Online since: January 2014
Authors: Jian Feng Hu, Jing Hai Yin, Zhen Dong Mu
With the development of the society, has formed a mass of confused high-dimensional data, and urge people to obtain effective knowledge ability.
The researchers tried some solutions, such as zhang yan equal [1] of the multidimensional data model based on granular computing method is discussed.
Clustering analysis is a kind of commonly used information granulation method[2], it will be the object of a given data set organically together, form a mutually disjoint partition results.
Results The EEG data used in this paper is the BCI Laboratory of Jiangxi Institute of technology through the EEG acquisition of College students.
The granulating mechanism of complex data and data modeling [D].
Online since: April 2022
Authors: Piyathida Karnsarng, Kwanrat Suanpong, Parames Chutima
In addition, fundamental principles of statistics are applied to analyze the data obtained from the experiment to determine the root cause of product defects [6].
In the first stage, the main problem with the production process acquired using the voice of the customer was identified using data obtained through record data, observation, and interviews with the production control manager, production supervisor, and some employees.
Table. 1 shows the defects from the main process of die and punch production, considering customer complaints and record data from October 2020 – March 2021.
Data related to problems arising in the die and punch production process was collected to analyze and determine the maximum results, mainly using bar graphs.
Chutima: Contactless Chip Module Defect Reduction.
Online since: August 2016
Authors: Liu Ke Huang, Yu Liang Wu, Kai Xiang Fan, Ying Jie Wang
This article from the biodegradation, microbial sulfate reduction, thermal decompositionchemistry, chemical sulfate reduction and magmatic 5 aspects to analyze the formation mechanism of hydrogen sulfide gas in coal mine, a coal mine combined with field data, analysis of hydrogen sulfide gas in the coal mining the transport mechanisms.
Our most serious, the data show that China's high-sulfur coal accounted for 36.6%, while hydrogen sulfide influx Face coal mining, to cause serious harm to human health[5]-[6].
Thermo-chemically decomposed and thermochemical sulfate reduction of organic sulfur.
The Huaying Mountain geological data show that the higher the content of the mining area of soluble carbonates, and a large area exposed, showing the direction of NNS distribution region, in particular the Department of Yang Miocene limestone stack thickness, quality of pure, karst development, the formation of many caves, dissolved bucket, sinkholes, ground temperature of the heat demand less than a chemical reaction.
Microbial sulfate reduction.
Online since: December 2012
Authors: Fan Lin, Xue Jiao Zhao
Modeling and Testing of Linear Electric Servo System Xuejiao Zhao1,a, Fan Lin2,b 1Department of Flight Vehicle and Control, Beijing Institute of Technology, Beijing 100081, China  2 Department of Flight Vehicle and Control, Beijing Institute of Technology, Beijing 100081, China ajiaojiao.7111@163.com, blinfanjy@bit.edu.cn Keywords: model of the electric servo system; data processing; test of Amplitude and Phase frequency characteristics.
A mathematic model of the electric servo system was founded in this paper and several groups of data collection and data processing were executed to check up the model veracity.
This paper described the data processing steps and analyzed the contrast of test and simulation results.
The time constant will be too large to achieve the requirements of fast [2] without a reducer with a large reduction ratio.
The reduction ratio of this servo system is calculated as Eq. 3
Online since: September 2024
Authors: Daniela Buske, Guilherme Jahnecke Weymar, Régis Sperotto de Quadros, João Gabriel Piraine Bandeira, Gustavo Braz Kurz, Igor da Cunha Furtado
The study underscores a reliable approach to noise reduction and insight into concentration-dependent heat transfer dynamics.
This application finds utility in diverse fields like signal processing, data analysis, and mathematical modeling, enhancing the accuracy of information extracted from noisy functions.
Methodology Noise reduction.
Results and Discussion Noise reduction.
In summary, the proposed methodology offers an approach for noise reduction in mathematical functions, with potential applications in areas such as signal processing, data analysis, and mathematical modeling.
Online since: August 2013
Authors: M. Lototskyy, B.G. Pollet, M.W. Davids
It shows the presence of single trigonal phase, FeTiO3, space group #148, with lattice periods a = 5.0816 Å, c = 14.051 Å corresponding well to literature data [10].
Numerous data on hydrogen sorption performances of AB2-type hydrogen storage materials (A = Ti, Zr; B = Cr, Mn, Fe, Ni, Cu, V) were published since late 1970s.
The reference data were fitted using the simplest linear regression according to the formula: 3.1 Seven independent fitting variables X1…X7 are listed in Table 1.
Figure 5: Relations between experimental (calculated using Van’t Hoff equation from the reference ΔH and ΔS data) and calculated (eqn. 3.1) values of equilibrium hydrogen pressures for AB2-type intermetallic hydrides at various temperatures The values of equilibrium hydrogen pressures for AB2-type intermetallic hydrides at various temperatures calculated from the reference thermodynamic data show very good correlation with the corresponding values calculated from the alloy’s compositions using Eq. 3.1 (Figure 5).
Geological Survey Data Series 140, available online at http://pubs.usgs.gov/ds/2005/140/
Online since: December 2013
Authors: Jun Gu, Xiao Dong Chen, Hai Bing Liu
Keywords: NOx; selective catalytic reduction; cement kiln Abstract.
U.S. plants presently using or installing show that on average, SNCR achieves approximately a 35% reduction at an NSR of 0.5 and a 63% reduction at an NSR of 1.0.
In addition, there is accumulating data on the ability of SCR to control emissions of other pollutants,including VOC, dioxins and furans, ammonia, and mercury.
Reduction of nitrogen oxides with SNCR technology at Slite cement plant.
Reduction of NOx Emissions from Exhaust Gases of Cement Kilns by SelectiveCatalytic Reduction.
Online since: September 2013
Authors: Xiu Ping Yao, Pu Yan Zheng, Du Wang, Yan Zhou Yuan
The chosen of heating scheme is affected by the index of energy-saving and emission-reduction.
The data of Scheme 1 is shown in Table 1.
The thermal system of Scheme 2 is shown in Fig.2 and the data of Scheme 2 is shown in Table 2.
The data of Scheme 3 is shown in Table 3.
Conclusions In this thesis the energy-saving and emission-reduction of the heating schemes for the urban area are compared.
Online since: September 2014
Authors: Xiao Hong Wang, Qing Qing Lu, Jie Xin Pu, Zhong Hua Liu
PCA is the second order statistical properties for data.
In order to use all of the information, this article analysis the B-scan data (B-scan is composed of many A-scan data).
Let us assume the B-scan data is given in Eq. 1
Therefore, dimensionality reduction can be implemented
Lastly, the B-scan data can be reconstructed by Eq.6
Online since: September 2011
Authors: Xiao Hua Yu, En He, Yan Qing Hou, Gang Xie
Technolygy Center of Yunnan Metallurgy Group Co. , Kunming 650031, China ayxhyxh1978@yahoo.com.cn, b281303319@qq.com, chhouyanqing@163.com, dgangxie@sina.com Key Words: Thermodynamic, Polysilicon, modified Siemens process, silicon yield Abstract: The complex chemical reactions in the Si-Cl-H system with relation to modified Siemens process have been studied in this paper based on the thermodynamic data of related substance.
The thermodynamic data and Characteristic of System There may be the following reactions in the high temperature hydrogenation process [1], the main reaction is SiHCl3(g)+H2(g)=Si(s)+3HCl(g), and the other are the side reactions, which is listed in Table 1.
The gas kinetic constant for the hydrogen reduction of SiHCl3 has been investigated [7].
SiHCl3→SiCl2+HCl (2) The kinetic constant is able to determine by fitting the decomposition rate on the growth rate data is given as Eq. (3) .
Miller; "The Thermodynamic Data for Silanes and Chlorosilanes," Sandia National Laboratories Report SAND, 87-8215B, 1-87 (1990) [7] Su, M.
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