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Online since: December 2014
Authors: Liang Yu He, Min Sheng Liu, Qi Yue Chen
Our pulse signals are obtained by the pulse instrument collection, generally speaking, the length of a pulse wave cycle is about 600 data.
Among them, point a and point b are a pair of minimum and maximum points (Fig.1), and the interval between the feature point a and the point b are generally about 60 to 100 data points, about one tenth of the entire cycle.
So we can choose a suitable data interval ∆L to search the maxima and minima,then the point a and point b are determined.
Study on Pulse Wave Signal Noise Reduction and Feature Point Identification.
Journal of Data Acquisition & Processing.2006,12,vol 21
Online since: October 2012
Authors: Qiang Ying, Sheng Ying Yuan
Based on the actual measured topographic data of the pit collapse occurred at Sanjiangkou in Nanjing, a generalized model of pit collapse is established.
The study shows that the scheme with crow of tree play greater effect in pit velocity reduction, so it can be used in emergency rescue project.
It is also difficult to obtain the field data when the pit collapse happens.
According to the actual bank slope topography data, the underwater topography of the collapse was in -30 ~ -35m ,and the slope was about 1:3.
And the project use the experience and experimentation data of bank protection for reference, but the pit collapse landform conditions has greater difference with common beach, it is necessary to research on the arrangement forms and deposition promotion of pit collapse.
Online since: June 2021
Authors: Xian Zheng Gong, Yu Liu, Yu Chen Zhang, Li Wei Zhou
Screening of Energy-Saving Technologies for Cement Production Based on Boston Consulting Group Matrix Yuchen Zhang1,2,a , Xianzheng Gong1,2,b* , Yu Liu1,2,c and Liwei Zhou3,d 1Faculty of Materials and Manufacturing, Beijing University of Technology, No.100 Ping Le Yuan, Chaoyang District, Beijing 100124, China 2National Engineering Laboratory for Industrial Big-data Application Technology, No.100 Ping Le Yuan, Chaoyang District, Beijing 100124, China 3China Building Material Federation, No.11 San Li He Road, Haidian District, Beijing 100831, China a894095366@qq.com, bgongxianzheng@bjut.edu.cn, cliuyu@bjut.edu.cn, dzlw@cbminfo.com Keywords: Cement industry; Energy-saving technology; Technology screening; Boston Consulting Group Matrix (BCG Matrix) Abstract.
Method and Data Expert Point-scoring Screening Method.
Data collection.
Some views on carbon emission reduction work in cement industry[J].
Casting industry, energy-saving emission reduction technology screening and evaluation of research [J].
Online since: September 2013
Authors: Zhi Gang Liu, Qian Cheng Zhu, Yu Nan Guo, De Yu Mao
The Nano-copper oxides were prepared by the reduction of aqueous cupric acetate, with hydrazine as a reductant.
In this work, hydrazine, a rather strong reducing agent, was used for the reduction of aqueous Cu(CH3COO)2.
Through the data from the table can be obtained, the concentration of copper acetate with a greater impact on the system.
Tab.2 shows the results about the stability time of the system by adding oleic acid after the reduction reaction.
Online since: September 2013
Authors: Li Jie Sun, Li Zhang, Da Bo Zhang, Xin Ying Li
The tolerance in analog circuit lead to the overlap problem of soft fault diagnosis, which means that different fault types exists data overlapping phenomena and data between the same fault type still fluctuates heavily.
Information fusion can be divided into data layer fusion, characteristic layer fusion and decision layer fusion according to the abstraction level of information[2].
Both data layer fusion and decision layer fusion consume a lot in time and space.
Thus, it is necessary to conduct feature selection after feature extraction from high dimensional data of all nodes.
Select the first data of the three features respectively and fuse them by order(feature dimension is three) for fault classification.
Online since: April 2007
Authors: Shi Jun Luan, Wan Mei Sui, Ran Ran Song
Preparation and High Temperature Performance of β-Sialon Bonded Corundum Multiphase Material Wanmei Sui, Shijun Luan and Ranran Song Dept. of Physics, Qingdao University, Qingdao, 266071, China Keywords:�Sialon, Oxidation resistance, Thermal-shock resistance, Corundum Abstract. β-Sialon bonded corundum multiphase ceramic refractory was prepared by the method of carbothermal reduction and nitridation reactions of clay mineral doped with corundum particle phase.
Because the properties of W��V material are mainly determined by the characteristics of β-Sialon matrix which can be manufactured with different processes as well as the oxidation and the thermal-shock failure are the main factors limiting their high temperature application [1,2], the present work studied on the oxidation resistance and the thermal-shock resistance behaviors of β-Sialon bonded corundum material prepared by the method of carbothermal reduction and nitridation reactions of kaolin doped with corundum particles.
Experimental Procedure The samples of β-Sialon bounded corundum for the analysis of oxidation resistance and thermal- shock resistance were prepared by carbothermal reduction and nitridation of kaolin and amorphous carbon doped with corundum particle phase in one step synthesis process.
Based on the Ginsterlingger's kinetic equation of diffusion controlling type and the testing data at 1573K, we can got a curve showed in Fig.3, which also indicated that the reaction process could be divided into two reaction phases one is a phase of chemical reaction controlling type in the beginning period of 12hrs and the other is a diffusion controlling reaction phase after the first phase.
Conclusions The β-Sialon bonded corundum multiphase material with excellent high temperature properties was prepared by the method of carbothermal reduction and nitridation reactions of kaolin.
Online since: February 2014
Authors: Maizatul Shima Shaharun, Mohd Faisal Taha, Ahmad S. Rosman
The equilibrium data obtained from adsorption studies was found to fit both Langmuir and Freundlich adsorption isotherms.
Reduction in silica content could be due to leaching of silica from external epidermis of rice husk.
The equilibrium data were also analyzed for the adsorption isotherm studies.
The Langmuir and Freundlich isotherms were used in order to interpret equilibrium isotherm data.
Fig. 4 indicates that both Langmuir and Freundlich isotherms give good fit for the equilibrium data of Pb(II) ion adsorption on RHAC.
Online since: August 2013
Authors: Cheng Bo Wu, Jin Shui Zuo, Zhi Yuan Kang, Jie Lei, You You He
Characterization Of Preparing Cold Bonded Carbon Bearing Pellets Of Metallurgical Dust For Direct Reduction Jinshui ZUO1, Chengbo WU1, Zhiyuan KANG1, Jie LEI1, Youyou HE1 1College of Materials Science and Engineering, Chongqing University, Chongqing 400030, China gtyj007@126.com Keywords: dust, cold bonding, composite pellet, binder, simplex lattice method Abstract: This paper involves the preparation of cold bonded carbon bearing pellets of metallurgical dust for direct reduction using binder.
The experimental data were statistically calculated by Design-Expert (version 8.0.6).
Characterization of preparing cold bonded pellets for direct reduction using an organic binder [J].
Direct Reduction of cold-bonded pellets [M].
Relationship between the Reduction Degree and Strength of DRI Pellets Produced from Iron and Carbon Bearing Wastes Using an RHF Simulator [J].
Online since: May 2015
Authors: Abdullah Yassin, Chong Yaw Teo
Results showed that among the vegetable oils, palm oil demonstrated highest cooling efficiency, at which reduction of 50 percent in cutting temperature compared to dry cutting.
To encounter this problem, increasing researches have been carried out on the usage of vegetable based oil in MQL resulting in reduction of health hazard factor [13].
Consequently, a reduction in tool wear was observed when compared with the dry machining.
Thus, the use of MQL technique is a good alternative for tool wear and cutting temperature reduction.
The ranges of cutting speeds were chosen based on the data given by cutting tool manufacturer.
Online since: September 2014
Authors: Rui Li
Introduction Data compression was an important preprocessing step while massive point cloud data processing.
Octree topology partitioning of massive point cloud data It was scattered that the state of original cloud data point.
(a) (b) (c) (d) (a)original cloud data (b)the surface reconstructed in original data (c) streamlined cloud data (l=4) (d)the surface reconstructed in streamlined data Figure 3.
Comparison of original data and streamlined data It was shown that the original cloud data and the streamlined cloud data using this algorithm, in the Fig3.
More details were retained with a higher reduction rate.
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