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Online since: May 2004
Authors: T. Abkan, A. Akdoğan, C. Yaman
Extensive data showed a correlation with cold compressive strength and ultrasonic velocity.
The width and the length of the cracks increase when water percent is decreased Solid Curve was derived from Data by Regression Analyses. 0 200 400 600 800 7 8 9 10 11 12 13 Fig.1:a) Ultrasonic Velocity vs.
The ultrasonic data are correlated with compressive strength data to determine the best mathematical relationship for each of the castable refractories, from which the compressive strength could thereafter be predicted, for the same product.
Rosen, Correlation Between Surface Area Reduction and Ultrasonic Velocity in Sintered Zinc Oxide Powders, Jour.
Bulle. 73 (6) (1994) 146 [8] D.J.Green ,Comment on Correlation between Surface Area Reduction and Ultrasonic Velocity in Sintered Zinc Oxide Powders, J.
Online since: October 2014
Authors: Evgeny Borisovich Smirnov, Svetlana Anatolievna Ershova
Winning the tender for construction of buildings and structures is based on selection of options of bid cost minimization, reduction of construction periods while ensuring the required work quality.
Methods The research involved the methods of system approach, abstraction, methods of logical and comparative analysis and synthesis, economic and statistical handling of data, organizational design and economic and mathematical modelling.
Fitzgerald state that the main problems arising in the process of assessing the cost of construction during preparation for tender are: the evaluators' lack of practical knowledge about the construction process; lack of time for accurate assessment; absence of full data in tender documentation; dispersion of market prices for resources [2].
The columns of this matrix give the initial data, lines correspond to the selected strategies.
The matrix cells give the anticipated results at the given initial data corresponding to the selected strategy.
Online since: September 2013
Authors: Min Li, Xiao Yuan Jing, Yong Fang Yao, Song Hao Zhu, Sheng Li
Some feature extraction methods considering the local structure of data have been proposed, such as locality preserving projections (LPP) [9], which aims at seeking a low-dimensional embedded space to preserve the locality relationship of samples.
In this paper, we consider the Gaussian kernel for the compared kernel methods, and set the parameter, where is the standard deviation of training data set.
Huang and H.Yin, “On nonlinear dimensionality reduction for face recognition,” Image Vision Computing, vol. 30, pp. 355-366, 2012
Very Large Data Bases, vol. 20, pp. 21-33, 2011
Sugiyama, “Dimensionality Reduction of Multimodal Labeled Data by Local Fisher Discriminant Analysis,” Journal of Machine Learning Research, vol. 8, pp. 1027-1061, 2007
Online since: January 2019
Authors: Wei Yu, Jia Xin Shi, Ze Yu Zhang, En Tao Dong
The samples were cleaned with alcohol, the cross section of samples was ground and polished, and the data of surface roughness were measured by OLS4100 confocal microscope.
Table 2 The data of surface roughness Sa [μm] Sq [μm] Sz [μm] GR1 17.311 22.538 634.341 GR2 10.567 13.570 554.894 TA1 15.979 21.831 625.057 TA1-1 18.213 23.470 604.929 TA1-2 17.841 22.708 525.833 The results show that the data of surface roughness are closed between GR1 and TA1, and the surface roughness of GR2 is slightly lower.
Fig. 3 Strain-stress curve in the rolling direction Fig. 4 Strain-stress curve in the transverse direction Table 3 Mechanical properties of each material Elongation [%] Reduction of area [%] tensile strength [MPa] Yield strength [MPa] GR1-RD GR1-TD GR2-RD GR2-TD TA1-RD-1 TA1-TD-1 TA1-RD-2 TA1-TD-2 56.84 35.98 58 37.92 35 38.6 49.16 41.36 74 59.1 71.0 46.0 58.9 52.5 65.1 57.3 246.23 206.9 295.98 268.88 287.8 294.75 325.19 329.19 174.58 196.79 200.34 254.02 237.4 263.03 271.21 303.2 Surface Micromorphology Analysis.
Fig. 5 Micro-morphology of different titanium sheets Table 4 EDS data of partial points(atom [%]) EDS SPOT C N O Ti 1 2 3 4 0.61 6.70 4.26 9.21 1.16 4.95 5.37 2.91 0.83 3.95 3.64 12.93 97.11 83.87 86.23 74.29 Table 4 shows a plot of the energy spectrum of the surface of the materials.
The distribution of the pass reduction is unreasonable, and cracks existing in the material before cold rolling, which will cause the final crack. 3.
Online since: September 2014
Authors: Alexandra Makarycheva, Yury G. Slizhov
In general the comparison of the specified characteristic absorption bands with literature data [7] confirms the structure of the synthesized chelates of transition metals.
According to the thermal analysis data the initial decomposition temperatures of the complexes indicate the following order of thermal stability: Cu(Oxh)2 > Ni(Oxh)2 > Co(Oxh)2.
Data from the scanning electron microscopy analysis show that Silochrome C80 consists of irregular shape particles on whose surface there are lots of inhomogeneities and smaller particles.
The differential free molar sorption energies (ΔG, kJ/mol) of the test compounds on the initial and modified Silochrome C80 at 150̊C Sorbent –ΔG, kJ/mol Benzene Nitropropane Butanone-2 Ethanol Pyridine –CH2– Silochrome C80 4.47 12.54 14.27 10.83 21.11 1.75 Silochrome C80 + 4% Сu(Oxh)2 6.41 11.64 12.15 8.87 18.58 2.2 Silochrome C80 + 4% Сo(Oxh)2 7.13 13.35 11.97 9.48 19.11 2.37 Silochrome C80 + 4% Ni(Oxh)2 6.68 12.70 10.14 6.49 20.35 2.65 According to the obtained data (Table 1), the Silochrome C80 modification with Cu(II), Co(II) and Ni(II) 8-oxyquinolinates brings to the reduction of the modified sorbents polarity with respect to alcohols and ketones molecules due to the less ability of modified sorbents to hydrogen bonds formation and to donor-acceptor interaction with sorbates molecules.
The values of ∆Gpyridine decreasing testify to some reduction in modified sorbents ability to hydrogen bonds formation with H-donors and to the donor-acceptor complexation.
Online since: June 2021
Authors: Xian Zheng Gong, Xiao Qing Li, Yu Liu, Meng Xi Wen, Si Jing Pan
Water Footprint Evaluation of Steel Production in China Mengxi Wen1, a, Xianzheng Gong1,2,b*, Yu Liu1,2,c, Xiaoqing Li1,2,d and Sijing Pan 3,e 1Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124 2National Engineering Laboratory for Industrial Big-data Application Technology, Beijing 100124 3Ningbo CNECO Environmental Technology Co. 
Production data of limestone[7] and dolomite[8] were obtained from the literature.
Supplementary materials like oxygen and fluorite were excluded for their minimal contribution to the overall impact and the lack of detailed data.
Data on power consumption[9], coal consumption[10], and oil consumption[11] were collected to calculate power consumption for steel enterprises.
Reduction of water footprint should be emphasized at these phases.
Online since: July 2013
Authors: Kai Cheng Li, Kang Feng
Besides, it is responsible for RBC handover. 2) Simulation of RBC(Radio Block System) RBC supervises the integrity of the train, tracks the position of each train traveling within the jurisdiction, determines the movement authority for each train by the signal system, and sends movement authority and infrastructure data individually to each train. 3) Simulation of Station Interlocking subsystem The interlocking subsystem is able to handle and unlock the route in the station , and control signal. 4) Simulation and test Manager The main function of the simulation test manager: To read and analyze the XML file, to synchronize the simulation test nodes, to initialize simulation test nodes, to configure network parameters, to control simulation test node to read line database information, to execute test cases, to inject fault, to record information and display information. 5) Simulation of trackside equipment The trackside equipment includes the balise and the track circuit.
For the mode curve calculation function, related variables are follows: 1 train position (PT) 2 position of the obstacle (PO) 3 train speed (V) 4 traction acceleration (a) 5 service braking deceleration (dSB) 6 emergency braking deceleration (dEB) 7 target speed (VT) 8 orbits gradient (grad) 9 on-board equipment processing time (tproc) 10 emergency brake establish time (tEB) 3) the definition of the output variable The output of the data preparation module is the data needed to calculate the mode curve, which is listed above.
Unit One: Data Preparation module Related input includes train speed v and the target speed VT, and also the orbits gradient.
This article use this test method in the test of CTCS-3 simulation test platform for the simulation of on-board system, and this test method is proven to be effective.In concern of reduction the test case number, some paper put forward a method of reduce testing requirements, so that the number of cases decreased significantly, these will be further studied in the future.
Beijing Jiaotong University, 2006 [5] Zhang Xiaofang A reduction of testing requirements-based test cases set optimization method.
Online since: November 2005
Authors: Edval G. de Araújo, Jorge Alberto Soares Tenório
These data indicate that in all processing conditions an accentuated decrease of particle size of aluminum powder has occurred.
In the beginning of the milling there was an increase in the quantity of released gas and, after this peak, there was a gradual reduction of the H2 released.
Then, oxidation of aluminum particles became the process controller and probably the greater alumina thickness contributed to the reduction of chemical reaction of the aluminum with lime.
There was no direct correlation, but this data could be divided in three zones.
Minimum Square Correlation. 400 500 600 700 800 900 1000 1100 1200 0 1 2 3 4 5 6 7 8 9 (B) Al-SiO2 Al Y=1,32449-0,00602 X+1,31855E-5 X 2 , R=0,93 Y=-3,99947X+0,01178, R=0,98 Compressive Strength (MPa) Density (kg/m 3 ) Table 3 - Data of compressive strength of blocks for Al-SiO2 gas forming agent.
Online since: December 2012
Authors: Jin Liang Zhang, Ming Ming Tang
The measured data are stored in MWD tools and some of the results can be transmitted digitally to surface using mud-pulse telemetry.
Data processing was performed using LabSPEC 5 (HORIBA Jobin Yvon).
Therefore reduction of fluorescence must be weighed against the resulting reduction in signal.
Therefore advanced data processing techniques will be required to remove the ambient seawater component, particularly if the data will be used to obtain Raman spectra of fluid in formation directly.Laboratory work is needed to better characterize the Raman spectrum of drilling fluid at the pressures, temperatures, and fluid compositions found at target formation.
Online since: December 2013
Authors: Bożena Gajdzik, Krystian Janiszewski
Restructuring was preceded by privatisation activities and reduction of liabilities of enterprises.
Decrease of production was also the result of reduction of demand for steel from the target market from that period (markets of former socialistic countries).
According to statistical data from the 80s of 20th century the export of metallurgical products was divided into two payment areas, so-called payment area I in Russian roubles and payment area II in American dollars.
After technological restructuring the share of steel produced in electric process increased to 49.4% (data from 2012).
Assortment structure of manufactures metallurgical products In overall amount of crude steel casted in Poland unalloyed steel is over 94% and alloy steel is almost 5.6% and corrosion resistant steel (with special properties) is only 0.02% (data from 2012).
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