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Online since: February 2009
Authors: P.O. Aiyedun, S.A. Aliu
The required input data were rolling speed, furnace temperature, initial and final thickness of the specimen, roll radius, roll contact time, corresponding temperatures, frictional rolling reduction and specimen width.
"A Study of Loads and Torques for Light Reduction in Hot Flat Rolling", Ph.
"Hot Flat Rolling Simulation by Use of the Bland and Ford's Cold Rolling Theory for HCSS316 at Low Reduction and Low Strain Rates", Proc, Int.
M., "Temperature Changes in Hot Flat Rolling of Steels at Low Strain Rates and Low Reduction
"Effects of Fine Precipitate on the Strength of High Carbon SS316 Hot Flat Rolled at Low Reductions and Low Strain Rates" NSE Technical Transactions 33 (4): 67 - 100. (1998)
Online since: March 2014
Authors: Carlos Antonio Reis Pereira Baptista, Antonio Jorge Abdalla, Andreia de Souza Martins Cardoso, Milton Sergio Fernandes de Lima
There is a lack in literature data about welding of these steels, particularly regarding to laser beam welding [6].
The increased hardness of the welded regions elevated the levels of tensile strength, but reduced the ductility; this reduction was associated with increasing the hardness of the welded region and the formation of small defects.
In both types of steel used there was a reduction in fatigue performance.
The welded steel 300M has reduction fatigue life more pronounced than the steel 4340 due to the difference in chemical composition.
The fatigue limit of the 300M steel was reduced to around 50% after welding while for 4340 steel the reduction was around 15%.
Online since: March 2015
Authors: Claudia Guattari, Gabriele Battista, Luciano Santarpia, Luca Evangelisti, Aldo Fanchiotti
Material Thermal Conductivity [W/mK] Specific Heat Capacity [kJ/kgK] Mass Density [kg/m3] Tuff 0.630 1.300 1500 Concrete 1.263 1.000 2000 Brick 0.500 0.840 840 Roof’s spruce beam 0.120 1.600 450 Plaster 0.900 0.910 1800 Perforated brick 0.325 0.840 1070 Insulating material 0.170 0.920 1200 Shingle 1.000 0.840 2000 Tile 0.840 0.840 1700 Table 2 – Building geometrical characteristics Walkable Inner Area 1252 m2 Building Volume 2364 m3 Total Glazed Area 83 m2 Surface Area Connected to the Ground 210 m2 Results and Discussion Starting from these objective data, simulations under dynamic conditions were performed with the TRNSYS.
Seeing Table 3, it is possible to observe a progressive reduction of the thermal transmittance that is important to decrease the heating energy demand and, at the same time, a solar gain factor reduction that is important to decrease the cooling energy demand.
Energy demands reduction ranges from 20.8% to 27.8% regarding heating and from 6.6% to 26.3% regarding cooling.
It is clear that the highest cooling reduction value (26.3%) is related to the lowest triple glazing g-value.
The highest cooling reduction value (26.3%) is connected to the lowest triple glazing g-value.
Online since: October 2006
Authors: Sang Ll Lee, Joon Hyun Lee, Jong Baek Lee, Jin Kyung Lee, Young Chul Park
Results and Discussions Tensile strength according to the volume fraction of TiNi wire (Vf) and reduction of area (R.O.A).
Fig. 2 and Fig. 3 shows the variation of tensile strength according to the volume fraction of TiNi wire and reduction of area at low temperature condition.
These results can become basic data for optimal fabrication condition of TiNi/Al6061 SMA composite of the largest strength at low temperature.
Fig. 4 Cumulated AE count according to reduction of area(R.O.A).
Fig. 6 AE parameters at the reduction of area 10% (R.O.A=10%).
Online since: July 2014
Authors: You Po Su, Li Yan Gong, Jian Wei Chen
Strength reduction factors and stiffness reduction factors of the wall with opening provided by JASSS are based on elastic theory or simplified equilibrium equation, which are not suitable for the conceptual design of ultimate strength.
Therefore, a seismic design method for shear wall with opening based on ultimate capacity is proposed, and the experimental data of 35 walls coming from seven literatures are compared and analyzed.
The results indicate that the data and suggested formula for calculating shear strength are in good agreement, and the formula can be used for structural design.
A reduction factor was applied to calculate ultimate lateral bearing capacity and shear stiffness.
Acknowledgements Funding for the research was provided by National Natural Science Foundation (51278164).The author would like to thank to the authors of pertinent references to present data and suggestions.
Online since: July 2019
Authors: José Luiz de Medeiros, Ofélia de Queiroz Fernandes Araújo, Raquel de Pádua Fernandes Silva
Data is collected from the literature considering the GT GE LM2500+G4 operating under similar conditions [5], OTSG for the comparable application and parameters [7] and ST with similar use and power output capacity [28, 29].
Combined Cycle Emissions Reduction: CCS.
The reduction of the number of theoretical plates in the absorber and, consequently, its height, is then assessed.
The height reduction is then limited to the maximum amine flow-rate (625 t/h), as shown in Figure 3.
Simple Cycle Emissions Reduction: CCS.
Online since: October 2015
Authors: Slavko Pavlenko, Luba Bicejova, Jozef Maščeník
The work introduces a demonstrational example of measured, processed and evaluated data of an experiment where parameters of vibrations, which were created due to water jet technological head parameters changes, were scanned.
The data are scanned with an accelerometer representing part B in the scheme.
Communication with the computer is performed by an interface USB 2.0 with speed up to 100 kS/s/channel and 400 kS/s/module with total data flow up to 5 MS/s.
Making of tasks within object-oriented programming environment of LabVIEW with further widening and further data processing in a case of a portable computer using means that the system is completely portable [1-4].
A) Data recordings of a planned experiment B) A digital record of an analog output of the accelerometer of material cutting C) Relation of vibration parameters to an analyzed technological and material parameter.
Online since: May 2012
Authors: Ying Pin Chang
Following, the results from the Taguchi experiment were used as the learning data for an artificial neural network (ANN) model that could predict the tilt angles at discrete levels.
The objective of a data-acquisition system is to comprehensively collect and integrate all relevant data.
The experimental results show that Taguchi’s robust design achieved an improvement of 11.01 dB in the S/N ratio, amounting to a 71.97% reduction in the sensitivity variation.
On the basis of a comparison of the ANN model and the GA compared with the experimental results, the experimental results prove that 79.07% and 81.47% reductions in variation of sensitivity can be achieved by using the Taguchi method and the neural-genetic algorithm during Nov.
Online since: March 2020
Authors: Wen Sheng Cao, Christoph Bluth
However, the above literatures do not involve the reduction of CO2 concentration using low temperature liquefaction.
In engineering design, the same target is used steady-state and dynamically, and then the data of the target is shared without data transfer.
HYSYS provides a powerful set of physical properties computing packages, and its basic data is also from the world's renowned physical data system, which has been rigorously verified by the company.
These data include 20,000 interaction parameters and more than 4,500 pure material data.
For components not included in the HYSYS standard library, the underlying data can be automatically calculated by defining a spurious component and then selecting HYSYS's physical properties calculation package.
Online since: September 2011
Authors: Asan G.A. Muthalif, Syazwani A. Rahim, Khairiah K. Turahim
The line of sight of their optics must be aligned during the entire communication time; this is crutial in large distance data transmission.
The alignment of transmitter and receiver of telescope is crucial in transferring data.
The settling time with the controller has reduced to 4.046 s from original value of 17.021 s, this is a reduction of 76.2%.
Simulation study on performance of LQR controller is given and significant reduction in settling time and percentage of overshoot is achieved for a step input.
Showing 7171 to 7180 of 40694 items