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Online since: November 2012
Authors: Sung Wook Kim, Jung Jun Park, Young Soo Yoon, Doo Yeol Yoo
The test results reveal that increasing thickness of the inner ring increases the tensile creep at early age leading to the reduction of the average strain and residual stress of the inner ring.
However, its low W/B compared to conventional concretes, the admixing of large quantities of admixtures and the absence of coarse aggregates lead to large autogenous shrinkage and large risk of occurrence of shrinkage cracking at early age due to the significant reduction of the cross-section enabled by the increase of strength when applied as structural member [1].
The mean values of the data measured by the two LVDTs were used.
Online since: December 2011
Authors: Michael Ferry, Wan Qiang Xu, Kevin J. Laws, Rong Kun Zheng, Lalu Robin
When compressed uniaxially up to 60% reduction in the supercooled liquid (SCL) region, the flakes in this composite were substantially aligned their broad faces towards the compression plane that generated a strong fibre texture.
As-cast samples of size 12 × 6 × 1 mm were compressed at 138 °C and a true strain rate of 0.1s-1 up to a 60% reduction in thickness using an Instron 1185 testing facility.
(c) pole figure generated from the diffraction data of the crystalline flakes after deformation.
Online since: September 2016
Authors: Arjun Singh, R. Deivanathan
This project will ensure weight reduction as well as an improved design, that makes use of electro pneumatic braking system. 1.
Referring to Table 1, there is an anticipated trolley weight reduction by 68.86% by replacing steel with E glass fiber composite as a trolley material.
The user friendliness of ACP is evident in the hierarchical data description of materials, stackups and laminates.
Online since: December 2016
Authors: Sankar P. Sanyal, Tejas M. Tank, Deepshikha Acharya, Abhinav Bhargav
Ru substitution at Mn sites leads to reduction in TP and increase the overall MR.
In order to understand the conduction mechanism responsible for the electrical transport in the metallic region, we have analyzed the resistivity data using the Zener-double exchange polynomial (ZDE), expressed as ρ = ρ0 + ρ2T2 + ρnTn
We have fitted the metallic region data of all compounds to all these equations but best fit could be obtained for ρ = ρ0 + ρ2T2 + ρ4.5T4.5
The fitted resistivity data are shown as line in Fig. 2 (a, b and c) without magnetic field and fitted values of the constants are tabulated in Table 1.
It is clear from the linear fits as symbolic line of ln(r/T) vs. 1/T that, the data fit well to the SPH type of conduction in the insulating region does not obey the other models.
Online since: July 2007
Authors: Olaf Engler
For Al alloys many of the required data have been determined in the framework of the European research programme COST 507 [14].
One of the most sophisticated data bases available - including the 15 most common elements of wrought Al alloys (Al-Mn-Fe-Si-Mg-Cu-Cr-Ti-B-Ce-Ni-V-Zn-Zr) and capable of handling quaternary phases like α-Al15(Fe,Mn)3Si - is distributed commercially by ThermoTech [15].
(9) Note that the required microchemistry data, including the particle density entering in the Zener-drag pZ (Eq. 7) as well as the concentration of solids css (Eqs. 3, 4, 9), can be provided by the microchemistry model ClaNG.
The microchemistry data necessary as an input for the softening module AlSoft were computed with the microchemistry model ClaNG.
Obviously, the resulting recrystallization kinetics data agree qualitatively well with the above findings that coiling temperatures in excess of 300°C are required to enable full recrystallization during self-annealing of the coiled hot strip, see Fig. 2.
Online since: December 2010
Authors: V.V. Ustinov, L.N. Romashev, I.D. Lobov, M.M. Kirillova, A.A. Makhnev
The data obtained are used for characterization of magnetic clusters in structures with ultrathin Fe layers (tFe<6.6 Å) and for estimation of interfacial electron scattering parameters in GMR superlattices.
Results and discussion TKE data for a number of Fe(tx)/Cr10 Å nanostructures are shown in Fig. 1a,b.
Correlation between MRE and GMR experimental data as function of Fe layer thickness.
The data obtained show that probabilities of electron scattering for spin-up (↑) and spin-down (¯) directions at the Fe/Cr(100) interface are in the ratio of about 2.4, a coefficient of spin asymmetry of scattering = - 0.59, relaxation times of conductivity electrons for m=1: =1.13·10-15 s and =4.37·10-15 s.
MREP(j=70o) spectra: 1 – experimental MRE data; 2 – model MRE data.
Online since: December 2013
Authors: Angela Amphawan, Syed A. Aljunid, Mohammad K.H. Al Mustafa, Hilal A. Fadhil, Aliaa Mamoun Kabbour
Optical code division multiple access (OCDMA) may be deployed in conjunction to SCM to improve the spectral efficiency and enhance the data rate of subscribers in a Local Area Network (LAN).
A wireless LAN complements 3G integrated data and voice services offered by cellular network operators [2-4].
More recently, MMF solutions such as OM3 and OM4 offer high speed data transfers for short distances less than 1 km [16].
At the transmitter, individual data signals are modulated using the MD code and combined before being modulated by a radio sine wave.
Din, “An Integrated Priority-Based Cell Attenuation Model for Dynamic Cell Sizing”, EURASIP Journal on Wireless Communications and Networking, 2012:356 , 2013 [5] Fiber Optics LAN Section (FOLS) White Paper, Choosing the Right Multimode Fiber for Data Communications, 2008 [6] A.
Online since: January 2012
Authors: Jayashree Sridhar
LUNOX: Block Flow – Ilmenite Processing Beneficiation H2 Reduction &Electrolysis Surface, Mining, Cooling, Liquefaction Transportation &Storage Electric Power Waste, Solids, Spent Reacted and Solids B.
Oxygen from Lunar Material Ilmenite reduction FeTiO3+H2 <---> Fe+TiO2+H2O H2O <---> H2+1/2O2 Requires pure ilmenite to work Use basalts, where there's no agglutinates Requires reducing agent Hydrogen most common candidate Fluorine also possible Magma electrolysis Electrolysis on melted rock Oxygen, metal, silicate slag as products Requires enough power to melt rock D.
The results indicate that an architecture emphasizing early production and utilization of lunar propellant has lower hardware development costs, lower cost uncertainties, and a reduction in human transportation costs of approximately fifty percent.
Reduction of Cost: Robotic infrastructure can be economical in 3 ways: 1) They do not require life support systems, allowing greater payloads with lower development costs; 2) With smaller margins of safety, unmanned missions can use less expensive supplies; 3) It can deliver equipment from which following human explorers can use local resources.
Technology Data bases: A strong, integrated approach to the management of technology related information is important to a well-formulated investment portfolio.
Online since: August 2014
Authors: V. Suresh Kumar, S. Sudha, R.M. Sasiraja
Results and Discussion The test system used here is having 33 buses and the remaining data are as follows.
As the number of DG units becomes more, the loss reduction increases which is evident from the comparison Table. 2.
Comparison of results with and without DG Cases Loss (KW) FNVDF Without DG (Base case) 210.8383 0.004307 After DG Placement (3 DGs) 118.8415 0.001435 Reduction 91.9968 0.002872 % Reduction 43.63 66.68 It is evident from the comparison Table. 3, there is a percentage reduction in real power losses and FNVDF while employing DGs in all the three optimal locations.
[6] Duong Quoc Hung, Nadarajah Mithulananthan, “Multiple Distributed Generator Placement in Primary Distribution Networks for Loss Reduction,” IEEE transactions on Industrial Electronics, Vol. 60, No. 4, pp. 1700-1708, April 2013
Online since: August 2013
Authors: Alessandra Galatioto, Sonia Longo, Marco Beccali, Giuliana Leone
A first approach to the energy saving topics lead to Passive House concept that was centered on energy demand reduction to almost zero values and stand-alone energy supply.
Moreover, which is the best compromise between demand reduction and energy supply?
Specifically consumption has been estimated sorting some representative area for each intended use and were compared to the gathered data from survey.
The base case-study simulation gave a yearly average consumption of 33.8 kWhe/m2y and all the introduced scenario allow a reduction of this consumption.
Specifically, the Scenario 6 is the better one in terms of CO2 emission reduction about 509.421 kg/y.
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