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Online since: August 2023
Authors: Khalid AlShuhail, Abdelsalam Aldawoud, Syarif Junaidi
Figure 1: (a) air inlets and outlets of the mound (b) termite mound structure (c) Abstracted termite model 2 Methodology 2.1 Study Area Description The data collection was acquired from constructing the two models; both of them were in the same location and along the same axis (East-West axis).
Since there is a correlation between the outdoor swing and the difference between the indoor and outdoor maximum temperatures, the temperature difference ratio was used to analyze the data.
The longer it takes the heat waves to pass through a surface, the reduction in the cyclical temperature on the inside surface compared to the outside surface.
Data in Fig. 8 displays that the wall orientation has a great effect on the Time Lag, TDR, and the Decrement Factor.
The collected data was divided into four seasons that were defined by compiling the monthly average temperatures and RH readings; where winter is defined from December to February, spring from March to May, summer from June to August, and fall from September to November.
Online since: July 2006
Authors: Richard Hamerton, Mischa Crumbach, Tom Quested
In addition to dynamic recovery, both 3IVM and ALFLOW describe static recovery (RC), but for precise RCkinetics, experimental data is sparse, and accordingly these parts of the models are still under continuous improvement.
However, for a new alloy system, some parameters of the model [8] need to be optimised by comparison with experimental softening data.
As strain rate and temperature may vary along the strip length and in the cooling coil, detailed process input data is required, preferably from FEM models.
Then, using the resulting tandem mill data, the different dislocation density evolutions during hot rolling were simulated with 3IVM (coupled to the GIA deformation texture model) available on SimWeb.
This reduction in particle size increases both the yield stress and the work hardening - and hence steady state flow stress - by about 10%.
Online since: July 2007
Authors: Matteo Strano, Andrea Burdi
This has enabled significant reduction in the cost and time for design and development, and has helped to improve the quality and performance of parts.
It is a non-linear optimization process that uses experimental data (affected by uncontrolled variability) to determine the parameters describing some constitutive simulation model of a material.
An ANOVA (Analysis of Variance) has been conducted on the available material data, using the tensile tests' testing direction as a factor with three levels (0, 45 and 90°) and x as the vector of response variables.
No experimental data is available for the three friction coefficients (x9 x10 x11).
Initial blank diameter 635 mm, initial axial hole diameter 120 mm, initial sheet thickness: 0.81 mm; Young's modulus: 211 GPa; Poisson's coefficient: 0.284; isotropic behaviour; hardening law: σ=2457(0.005+ε) n MPa (data provided by the company).
Online since: June 2022
Authors: Niyou Wang, Senthil Kumar Anantharajan, S. Thameem Dheen, Jerry Ying Hsi Fuh
These data were used to compute the actual density of the samples.
The compression rate was 1mm/min, and the data were collected at 0.01s interval.
The tensile testing rate was 1mm/min, and the data were collected at 0.1s interval.
The cell viability data were shown as mean ± standard error of the mean, and all indirect cytotoxicity tests were conducted with at least 4 biological replicates (n=4).
Such deviations can cause a substantial reduction in the mechanical properties of the actual printed sample and affect the osseointegration of the implant [12].
Online since: March 2007
Authors: Anthony J. DeArdo, C. Isaac Garcia, R. Marraccini, Ming Jian Hua
This new pass sequence is shown in Figure 7 using actual mill data.
T, ºC e, % T1, ms t2, sec F1 1029 40 130 F2 1005 27 60 5.5 F3 978 25 40 4.3 F4 957 23 30 2.8 F5 936 18 20 2.8 F6 915 13 10 2.4 e = Reduction, t1 = Contact Time, t2 = Interpass Time Fig. 6 Rolling data versus pass no. for standard NSB six pass schedule.
As the pass strain increases, more of the poorly oriented grains will show a sufficiently high enough dislocation density that they will exhibit nucleation and recrystallization, grain refinement and subsequent uniform final microstructure. 0.06C-1.5Mn-0.35Si-0.04V-0.025Nb-0.025Ti-0.0045B0.0075N, Final Thickness: 3.25 mm 0 10 20 30 40 50 F1 1092 F2 992 F3 966 F4 939 F5 914 F6 892 Finishing Pass Number and Entry Temperature, °C Relative Units Material Flow Stress Roll Force Rolling Torque Fig. 7 T - ε pass sequence data Kozasu, et al., studied the recrystallization of coarse grained austenite in the early 1970s [12] and showed that recrystallization of coarse grained austenite can occur only with very large reductions, of the magnitude found when stands F3 and F4 are dummied (as shown in Figure 7).
Chirpy V-notch impact data for 12.7mm (0.50 in.) thick X42 and X52 linepipe skelp produced at NUCOR Steel-Berkeley's CSP Plant, Charleston, SC.
Online since: September 2017
Authors: V.I. Matyukhin, Vyacheslav A. Dudko, N.V. Grebneva
As the experimental data shows, to assure efficient operation of the furnace, this parameter should be kept at the maximum level of 60-70 [m3/m2·min] [9].
Comparison of this data reveals that it is possible to improve cupola performance through increase in specific consumption.
Analysis of this data demonstrates that the cupola cross-section is characterized by strongly pronounced nonuniformity of both temperature and velocity fields.
The analysis demonstrated that melting of the cupola mixture in the shaft furnace occurs under different oxidation-reduction conditions.
This leads to the development of reduction reactions in the bed and formation of a metallic phase in the melt.
Online since: May 2014
Authors: Lionel Fourment, Richard Ducloux, Stephane Marie, Patrice Lasne, Julien Barlier
Results of experiment and computed temperatures for 3 thermocouples are presented in Figure 3, different colors are for each thermo-couple, lines with markers are experimental data, dotted lines are initial values, and continuous lines are for best reverse HTC.
Grey lines are for experimental data, dotted lines are for austenite, color lines are for optimized curves.
Fig. 4: Optimized and experimental CCT diagram CCT derived from optimal TTT diagram is close to experimental data.
CPU time reduction is important for optimization particularly for cold sheet forming simulation which can be computation time consuming.
In the rheological data file, coefficient values r0, r90 and r45 are replaced by 3 unknown optimization parameters with a range of variation between 0.1 and 2.
Online since: October 2006
Authors: Ch. Lang, Constantin Ene, Vitaliy Vovk, Guido Schmitz
The data of a typical measurement consists of the information on about one half to a few million atoms, representing a specimen volume of about 105 nm 3.
Polymorphic transformation leads to reduction of energy only within the grey shaded.
Since the atom probe delivers three-dimensional data, 2D composition maps can be determined in any arbitrary direction subsequent to the measurement.
With this information then the diffusion coefficient along the triple line can be derived from the slope of the data in Fig. 8b and the first term.
Nevertheless, the Ni content in the middle of the Cu layers is still negligible, as shown by the filled data points in Fig. 11a.
Online since: April 2016
Authors: Sławomir Smoleń, Janusz T. Cieśliński, Katarzyna Krygier
In the viscosity-reduction case, a reduction up to 20% was measured.
Satisfactory agreement between measured values and the reference data has been obtained, except for the data of thermal conductivity for temperature higher than 40°C, where the maximum deviation – for the tempearture of 60°C was about 31% - Figure 3.
The maximum deviation between measured and refrrence data regarding viscosity of the pure thermal oil does not exeed 4%.
a) b) Figure 3: Comparison of the measured properties of the tested thermal oil with reference data; a) viscosity, b) thermal conductivity Figure 4 shows the dynamic viscosity of the tested thermal oil-MWCNT nanofluids as a function of temperature and nanoparticle weight concentration.
Online since: December 2010
Authors: Rong Shi, Yue Lei He
Also pointed out that lack of adjustable fasteners, fastener corrosion, fastener and the lack of vibration reduction and performance degradation caused by a wide range of management and maintenance of complex and emphasize on the use of investigation and analysis of search problems, tracking the course of the development, research the causes and improve the conservation measures to maintain rail fastening methods Keti the safe operation of the subway has a crucial role in.
Type Laying sites Technical data Adjust the volume(mm) Anti-lateral force Gauge pad Bolt torque Anchor bolt tightening torque Elastic button pressure Gauge Level DTⅢ Line 1 +8/-12 +30/-5 35KN 4, 6, 8, 10 100N·m~120N·m     DTⅢImproved Line 2 +8/-12 +10 35KN 6, 8, 10, 12 6, 12 Adjustment gauge backup 100N·m~120N·m   Initial deduction pressure 27.5KN DTⅢ-2 North Extension of Line 1 and line 3 +8/-12 +10 40KN 6, 8, 10, 12       WJ-2 Line 1,3,4 ±10/Unit can be adjusted continuously Of track 10mm, under the iron plate 30mm 40KN / 90N·m~100N·m 300N·m   SD-1 Line 4 +8/-12 “+30”   6, 8, 10, 12   300N·m   Elastic fastener Line 4 “+9/ Unit” “+30”           Damper coupler Line 1,2,3,4 +8/-12 “+10”   6, 8, 10, 12 6, 12 Adjustment gauge backup 100N·m~120N·m 150N·m~200N·m   DTVII Viaduct of line 2 +8/-16 “+30” Of track 10mm, 20mm iron plate under 40KN 6, 8, 10, 12 Composite pad: 70 ~ 80N • m general pad :100-120N • m 250N·m~300N·m Different from DTIII Flexible fastener Line 2 +8/-12 “+10”
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