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Online since: May 2016
Authors: Bengt Gunnar Svensson, Roberta Nipoti, Anders Hallén, Hussein M. Ayedh
A significant reduction of the VC concentration was demonstrated by the slow cooling rate.
Results and Discussion Reduction of the [VC] by a slow cooling rate.
process, further reduction of the [VC] can be accomplished.
The data in Fig. 2 forms a line that represents the formation of VC’s and the measured values represent quenched concentrations, since fast cooling was applied.
The effective reduction of the [VC] in both approaches mentioned above can be attributed to one of the following two mechanisms.
Online since: September 2011
Authors: M. Zadshakoyan, E.Abdi Sobbouhi, H. Jafarzadeh
The work presented in this paper might be used for basic data in the design of the precision forging process.
The simulation engine reads the database file, performs the actual solution calculation and appends the appropriate solution data to the database file.
Experimental 3.1Material properties Compression tests were performed on commercial lead billets using workpieces of 20 mm in diameters and 30 mm in height (h/d=1.5) to obtain true stress-strain data.
The figures show the variation of the specific pressure with reduction in height.
The specific pressure increases with the number of teeth and height reduction for a given module.
Online since: October 2004
Authors: Hugo Ricardo Zschommler Sandim, Andre Luiz Pinto, J.P. Martins, Angelo Fernando Padilha
Specimens in the deformed state (70 and 92% reductions) were cut out parallel to the RD and vacuum-sealed in quartz glass.
The distributions of the misorientations (ψ) found in each grain were determined from EBSD data.
Two neighbor grains display distinct annealing behaviors even after 92% reduction followed by annealing at 1200 o C for 1 h.
The respective pole figures determined from EBSD data are shown in Fig. 2b.
The EBSD data shown in this work confirms the presence of noticeable orientation effects on recrystallization of oligocrystalline tantalum.
Online since: March 2012
Authors: Muhammad Ahmad, Ihsan Ul Haq, Qaisar Mushtaq, Muhammad Sohaib
Due to the hundreds of bands hyperspectral imaging involves high dimensional data and provides vast amount of data about a scene.
The data is redundant due to the highly correlation between bands.
The efficiency of blindly unmixing of hyperspectral data can be seen from the achieved results.
[5]C.I Chang, Hyperspectral Data Exploitation: Theory and Applications.
[10]Information on: http://speclab.cr.usgs.gov/cuprite.html [11]Muhammad Sohaib, Ihsan-ul-Haq and Qaiser Mushtaq “Dimensional Reduction of Hyperspectral Image Data Using Band Clustering and Selection", in proceeding of Global Congress on Science and Engineering (GCSE 2011)”, Dubai, UAE.
Online since: April 2005
Authors: M. Rekas, M. Radecka
The aim of this work is, basing on defect model, comparison of chemical diffusion coefficient with atomic diffusion data in titanium dioxide.
As can be seen, good agreement between experimental and theoretical data is observed.
The statistical analysis showed that there are no differences between both sets of these data.
As can be seen the best agreement was achieved for A = 0.1 at.% and literature data of DO and DTi [11,12], respectively.
Conclusions Chemical diffusion coefficient in TiO2 single crystal within n-p transition range was determined from electrical conductivity transient data.
Online since: November 2017
Authors: L. Zeng, O.S. Es-Said, X. Sun, A. Al Sumait, C. Delgado, F. Aldhabib, F. Alzubi, K. Tovalin, A. Cheng, R.M. Campo, Y.J. Li, B. Ramsey
In each heat treatment, there were four samples measured for each data point.
Table 8: Tensile data for as-received samples for vendor H & S.
Table 10: Tensile data for part III samples, Vendor H and S.
Vendor 1st and 2nd Tempering Temperatures (°C) and Time (hr) Ultimate Strength MPa (Ksi) % Reduction in Area H 593.3 (4 hr) + 593.3 (2 hr) 886.7 (128.7) 57.2 621.1 (4 hr) + 621.1 (2 hr) 893.4 (129.7) 57.5 S 593. (4 hr) + 593.3 (2 hr) 766.2 (111.2) 67.0 621.1 (4 hr) + 621.1 (2 hr) 779.0 (113.1) 69.5 Table 11: Tensile data for samples for part IV.
John Wiley and Sons, Incorporated, eighth edition, 2010., pp. 342-367 [2] "Metal Property Data: 4330 Steel." 4330 Alloy Steels Material Property Data Sheet - Product Availability and Request a Quote.
Online since: September 2015
Authors: S.B. Arya, Ankit Kanaujia
The total polarization resistance was observed about 5530, 4030, 2465 and 2000 Ohms.cm2 in solutions of 0.4, 0.6, 0.8 & 1.0 M NaCl respectively indicate reduction of film stability at higher chlorides concentration.
Nyquist plot shows a significant reduction of semicircle radius on addition of Cl- ions.
The fitting data tabulated by best fitting method using Randle circuit are shown in Table 2.
These impedance plots clearly shows a high influence of temperature on passivity due to a significant reduction in total passive film resistance (Rp) when temperature increased from 45˚C to 65˚C.
However, reduction of phase angles from 90˚ shows possibility of in homogeneities on the surface of passive films and high pores structure at higher temperature [7-8].
Online since: June 2012
Authors: Antonios Kladas, Themistoklis D. Kefalas
Reduction of Power Grid Losses by Using Energy Efficient Distribution Transformers Themistoklis D.
As a result, the reduction of no-load loss of distribution transformers has attracted in recent years the interest of researchers, transformer manufacturers, and electrical utilities [6].
The reduction of no-load losses and the consequent minimization of operating and manufacturing costs of transformers can be achieved by methods of forecasting no-load losses during the design phase of the transformer.
The specific experimental setup involves the usage of search test coils, a sampling card and appropriate computational analysis of measured data using LabVIEW software [9]-[12].
The development of the proposed methods has led to the reduction of the manufacturing and operating costs of wound core distribution transformers.
Online since: October 2013
Authors: Jian Ping Wang, He Jia Liu, Shao Kai Sun, Shi He Jian
With the development of iconography technology and surgical technology, the surgical treatment of sacral fracture are greater emphasis on surgical reduction and internal fixation.
The pelvis was first scanned using a CT scanner (Toshiba Aqulion16) and saved the data with DICOM formulation.Imported the CT data to Mimics V8.1 software and selected the bone structure of pelvis.
Then, prefabricateed the 3D model and export the data with STL formulation.
Based Table 2 and Table 3: for type Ⅰ sacral fractures , the maximun stress of rectangular plate with cannulated screw was much more close to normal pelvis, rectangular plate with solid screw got good reduction and fixation in the direction of X than the other four groups, convex plate with cannulated screw got good reduction and fixation in the direction of Y than the other four groups, convex plate with solid screw got good reduction and fixation in the direction of Z than the other four groups; for type Ⅱ sacral fractures , the maximun stress of expansile bolt was much more close to normal pelvis, expansile bolt got good reduction and fixation in the direction of X, Y, Z than the other four groups; for type Ⅲ sacral fractures, the maximun stress of convex plate with solid screw was much more close to normal pelvis, convex plate with solid screw got good reduction and fixation in the direction of X, Z than the other four groups, rectangular plate with cannulated screw got good reduction
Online since: July 2014
Authors: Sandip Patil, Digvijay Sheed, Rajkumar Prasad Singh
Koshimizu [6] found that a reduction in cutting forces was observed during UAT of Ti-6Al-4V.
These reductions in strain will ultimately benefits through reduction in cutting forces during UAT.
Microstructural analysis and Discussion In this section, quantitative data on chip morphology during UAT and CT is presented as shown in Fig 4.
This data was obtained from SEM and optical images of chips generated during machining using an image analyzer software.
A quantitative data on chip morphology during UAT and CT machining is tabulated as shown in Table 3.
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