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Online since: February 2008
Authors: Andrey N. Dmitriev, D.Z. Kudinov, Leopold Leontiev
The comparative analysis of computation and experimental data has shown that the offered model can be used in the qualitative analysis of processes of interaction of multicomponent oxide melts with gasesreducers of various composition.
The comparative analysis computation and experimental data has shown that the offered mathematical model can be used for the qualitative analysis of processes of interaction of multicomponent oxide melts with gases-reducers of various compounds.
Discussion of results The initial data for calculations were the following: temperature changed from 1473 up to 1923 K with step 50 K; pressure - 1 atmosphere; a portion of hydrogen - 0.1 mole; melt: B2O3 -25.98 mole, CaO - 10.83 mole, NiO - 1 mole.
It is necessary to take into account the comparative analysis of the experimental data received under various conditions of experience.
Liquid and gas interaction during reduction in bubbled layer.
Online since: May 2013
Authors: Bao Qiang Xu, Bin Yang, Dong Sheng Wang, Heng Xiong, Jin Gang Jia, Da Chun Liu
In our work, CaTiO3 phase was also found in the process of reduction TiO2 for preparing Ti powders by calcium vapor, which is consistent with the observation[12-15] in the process of electrochemical reduction of titanium dioxide in molten salt and the PRP process, direct reduction of TiO2 by metal calcium.
The Reduction Experiment.
Then took out the reaction vessel and opened it to obtain the reduction products.
According to the data in Ref.[17], the Gibbs free energy for the reaction in the process of the reduction of TiO2 by calcium vapor can be calculated.
In addition, the reduction by-products CaO also can be found in pattern (b).
Online since: April 2021
Authors: P.A. Gamov, A.R. Tabylbaeva, A. Bil'genov
There is a lack of complete understanding of the mechanism and kinetics of reduction of metals from oxides.
Investigation of mechanism of metals’ reduction from complex oxides and influence of experimental conditions on the nucleation and growth enables to identify new patterns in the process of reduction of metals from their oxides, in general.
In the reduction process distribution of metal in different ores has its own characteristics.
As an example, during metal reduction of low-grade South Ural ores the reduction process spreads over the volume of the lumps without formation of a continuous metal shell on the surface with the metal phase inside; the non-metallic layers of the silicate phase act as distribution channels for the reduction process.
Experimental Parameters Temperature, °С Holding, hour Slice Number (distance from the surface of a sample) 1300 1400 1500 1600 1,3,5,7 1,3,5,7 1,3,5,7 1,3,5,7 1,2,3 1,2,3 1,2,3 1,2,3 For the initial data on statistical calculation, 3 parameters were used: temperature (T), holding time (t) and slice number (N).
Online since: August 2011
Authors: Zi Ran Liu, Yu Xi Yu, Yuan Yuan He, Tao He
The technology of wavelet noise reduction can not only suppress the signal’s noise, but also can overcome the shortcomings of conventional noise reduction methods.
Therefore, wavelet de-noising is a very effective noise reduction method.
By comparing the experimental data, this paper estimated the relationships between regulatory factors and SNR, RMSE are estimated, shown in Fig1 and Fig2.
Experimental procedures. (1) Programming under the CCS environment, and make the DSP reading the vibration test signal data that collected from headstock CA6140
(3) Use MATLAB to process the measured vibration signal for noise reduction
Online since: September 2013
Authors: Qin Feng Di, Chun Yuan Gu, Li Yi Shi, Jian Ping Zhang, Yi Chong Cheng
The ShUNP2-10 is a nanomaterial which was prepared for this drag reduction technology.
In the paper, we reported the surface properties and the drag reduction properties on the core surface.
The water phase permeability(WPP)was applied to evaluate drag reduction effect.
The measured datas of the fluxes and pressures were treated by regression method according to Darcy’s equation, so WPPs before and after displaced with ShUNP2-10 suspension were obtained, respectively [3].
It showed the ShUNP2-10 have significant drag reduction effect and very good practical value.
Online since: May 2014
Authors: Zhi Hong Li
Research on Data Security in Cloud Computing Zhihong Li Information Science and Technology College,Chuxiong Normal University,675000,China Lzh_cx@cxtc.edu.cn Keywords: Cloud Computing, Data Security, Data Storage, Confidentiality Abstract.
Cloud computing has offered a brand-new perspective to scalable, distributed computing, which allows significant reduction in IT costs and increase in capabilities.
Cloud Data Center Typically the Cloud Data Center (CDC) includes massive hardware storage devices and several management servers.
While data confidentiality can be guaranteed by encryption, the integrity protection of data cannot be neglected.
Consequently, the Merkle Hash Tree (MHT) data configuration has been proposed and adopted in data processing.
Online since: July 2018
Authors: Wolfgang Schlüter, Jakob Krieg, Stefan Müller
Data Gathering In the plant of the industrial partner, a medium-sized aluminum die-casting company, the machine data are stored decentralized in various file formats.
The MySQL database contains the available production data including the incident data of the die-casting machines.
Figure 2: Data gathering Software Data Analysis The collected data contains planned downtimes.
Simulation of the Reduction of Failures and Their Duration In a project described by Koszyk [10] a die-casting company's production data is collected and processed by using commercial software.
All data evaluation is done by using a Matlab script.
Online since: October 2015
Authors: Mohammad Shakir Nasif, Rozanna Roslan
Matos et al. [5] used Ripple method to optimize the size of storage tanks found that large time discretization; i.e. monthly rainfall data to simulate the model will cause inaccuracy of the tank sizing [5].
This paper aims to investigate the effect of using different run-off coefficient values by utilizing Kuala Lumpur hourly rain fall data on the water saving and its consequent effect on payback period of the rain water harvesting system, energy savings, and CO2 emissions by using a water balance model for an office building.
In this paper, Kuala Lumpur hourly rainfall data for a whole year is used.
By using water balance calculations at each hour based on rain fall hourly data and building water consumptions and water supply from water main, the model will calculate the total amount of water and energy savings, and reduction in CO2 emission.
Results Water and Energy Savings, and Carbon Dioxide Emission Reduction.
Online since: August 2014
Authors: Qiu Chao Deng, Zi Min Wu, Xu Feng Zhang, Li Qiu Song
Hairong Wang[7] designed a simple data mining system in The Application of Data Mining in Students' Scores Analysis, by mining the data of students' scores, he found the hidden related regulation among the data.
Data collection and reduction Choosing sample.
Due to differences in content, assessment criteria of examination among those provinces, Beijing local students' scores data has been taken as sample in order to maintain objective comparison of the data, There are 64 validate samples after data reduction. (3)Collecting score data of CET4 and CET6:Score data of CET4 and CET6 are collected from academic affair management system.
Data reduction. 1. sex(1, male; 0, female) 2. from(1, Beijing; 2, other provinces) 3.
As a generalized data mining platform, Clementine features in various algorithm which can handle large quantity of data mining tasks including data classification, data regression, clustering, contingency analysis, anomaly detection and time series etc.
Online since: July 2013
Authors: Li Zhang, Yi Zhang, Yu Hong He, Xin Ren You
We should continue to work on related technical standards, promotion policies, and requirements and support measures for the public transport industry, accelerate industrialization and marketing of hybrid vehicles of self-owned brands, and develop advanced system matching technology. ④ Developing intelligent transportation The construction of intelligent transportation, use of modern communication and information technology such as highway electric toll collection (ETC) system, geographic information systems (GIS), and port electronic data interchange (EDI) are promoted vigorously [8].
Assessment and trend analysis of transport Energy Conservation & Emission Reduction.
Perspective on policy "bottlenecks" for energy saving and emission reduction of China's motor traffic.
Ways and experiences of European urban transport energy conservation and emission reduction.
Empirical study on management methods for energy conservation and emission reduction of transportation enterprise.
Showing 601 to 610 of 40357 items