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Online since: February 2012
Authors: Quan Feng Dong, Jun Zang, Ming Sen Zheng
The average grain size of MnO is 86nm as estimated by Scherrer equation based on the (200) peak.
As the comparison, the profile of the capacity of the MnO powder vs cycle number at the current density of 1C rate is shown in Fig.5.
Online since: July 2015
Authors: Ru Feng Cen, Wen Wen Shu, Kun Yan Wang
A large number of waste polyacrylonitrile fibers were produced in the production process every year.
Finally, the resulting product was treated with grain alcohol and dried at 85℃ in a vacuum drying chamber.
Online since: December 2011
Authors: A.K. Singh, Rajiv Kumar Mandal, S. Banumathy
A large number of components used in these applications are in plate, sheet or extruded rod forms which are produced by thermomechanical processing/treatments.
It has been observed that the final texture evolved during α→β→α transformation at the scale of a grain either during α→β transformation on heating or/and during β→α transformation during cooling.
Online since: June 2014
Authors: Yi Zhong Yu, Chao Xue, Shi Jie Han
Simulation data source with data for the number of cycles from 0 to 255, VGA -RED/GREEN/BLUE-IN [7:0] of the data input terminal, matrix R / G / B-OUT [7:0] is converted by the matrix after the data, R / G / B - OUT data dynamically filtered [7].
Video gamut conversion process errors occur phenomena such as the image is not clear, the presence of the pseudo contour, grain noise and other phenomena, the dynamic filter can effectively be treated to reduce the error to eliminate the effects of noise.
Online since: August 2007
Authors: Thomas Fiedler, Graeme E. Murch, Andreas Öchsner, Nilindu Muthubandara, Irina V. Belova
Since the available computer hardware limits the number of degrees of freedom, not the whole structure can be meshed.
In the Monte Carlo calculation, a fine grained square planar lattice (151 x 151) with standard periodic boundaries containing a single circle or square representing the inclusion is employed thereby implying a square planar arrangement of the inclusions.
The number of particles released is typically 10 6 and this provides the ensemble average as required in Eq. 5.
The number of time steps per particle used in the present calculations to ensure long-time behavior was 2 x 10 6 for the case analyzed here where the conductivities did not differ by more than an order of magnitude.
The source and sink planes are separated by some 100 planes in the +x direction and by the same number of planes via the periodic boundary in the -x direction.
Online since: June 2012
Authors: Hao Luo, Zong Xiang Huang
Type Representative model Annual output/10,000 sets rolling element used Model Quantity /grain 1 Small and medium size deep groove ball bearing 6305 300 3/8 inch friction ball 7 2 Large and medium size deep groove ball bearing 6314 100 1 inch friction ball 8 3 Tapered roller bearing 32312 120 15.7×32.5 15 4 spherical-roller bearing 21312CC 50 15×13 24 Table 2 Operating units No.
Because that when number of operating units equals to N, the total number of pairs of operating units can be calculated by use of the following formula: (2) In this case, N=13, then the total number of pairs of operating units P=13(13-1)/2=78.
When the number of operating units is relative large, number of correlations among operating units will also be large, which is difficult to deal with, so it adopts comprehensive adjacence degree to handle this problem.
Online since: April 2012
Authors: Shuan Fa Chen, Zu Zhong Li, Wei Dong Liao, Rui Xing Yuan
Experimental Models In order to simulate the bending styles or shearing styles reflective cracks of asphalt concrete overlays on old cement concrete pavement, this research presents two models, which are shown in Fig.1, and the unit of number is cm.
(a) middle load test for fatigue (b) deflection load for fatigue Fig.1 Fatigue test modes of reflective cracking of overlays Table 1 The structure types for fatigue test of reflective cracking of overlays Serial number Types of overlays for testing Thickness [cm] A Asphalt concrete AC-13 5 B Fiber-reinforced asphalt concrete AC-13 5 C Single-side singeing geotextile + AC-13 5 D Glass fiber grid + AC-13 5 E Tricot geofabric reinforced composites + AC-13 5 F 2cm Sampave layer + 3cm asphalt concrete AC-13 5 Raw Materials and Technical Parameters Technical parameters of anti-cracking materials.
The maximum grain size of Sampave modified asphalt mixture is less than 9.5mm.
Table 5 The fatigue test results of the bending styles serial number test types of overlays Fatigue times of Cracks extending to different scale beginning 1 [cm] 2 [cm] 3 [cm] end A Asphalt concrete AC-13 458 1087 1750 2650 3876 B Fiber-reinforced asphalt concrete AC-13 517 1146 2765 3674 4320 C Single-side singeing geotextile + AC-13 734 2290 3862 6532 7767 D Glass fiber grid + AC-13 784 1876 4140 8245 9352 E Tricot geofabric reinforced composites + AC-13 769 1508 3973 8367 9562 F 2cm Sampave+ 3cm AC-13 AC-13 — — 758 1278 9682 Sampave 1132 2640 15970 — — The Fatigue Test Results of Shearing Types Based on the results of shearing types for fatigue test shown in Table 6, it can be concluded that: (1) Asphalt concrete AC-13 (type-A) When the times of deflection load came to 1242, the cracks began to extend along the cement concrete seam from bottom to top, and extended basically along the vertical direction upwards, there are also some small slant cracks, when the cracks extended to
(2) Fiber-reinforced asphalt concrete AC-13 (type-B) When the times came to 2178, the first cracks appeared, the width of cracks was small and the number of the fine cracks increased. while the times were up to 16941, the cracks run through overlays, which showed that fiber was effective to improve the anti-cracking performance of asphalt concrete for fatigue to some extent
Online since: August 2013
Authors: Yan Jia, Rong Ze Xia, Wang Qun Lin, Hu Li
In this paper, we collect the data through the API of twitter and mine information spreading based on users retweet behavior at a coarse-grained level.
We define retweet-width as following: it’s the number of retweet behavior of a tweet at one level.
But we do not count B’s retweet number as A’s retweet-width.
Only 110 tweets achieve that number.
First we know that the number of tweets based on each depth is different.
Online since: September 2014
Authors: Takayuki Shibata, Masami Masuda, Osamu Horiuchi, Takashi Samura, Takeshi Uno, Takeshi Itazu, Norihito Ito
Table 1 Experimental conditions Fig. 1 Configurations of workpiece On the surface of work plate of ultrafine grain cemented carbide (Sumitomo Hard Metal, AF1), square grooves or 90 degree V-grooves were ground, as illustrated in Fig. 1.
Fig. 5 Depth of groove for various experiments Groove number (c) S series Groove number (d) SN series (b) VN series (a) V series Fig. 2 shows the average grinding forces where the mean value of the average grinding forces of 1st, 10th, 20th, 30th ,40th and 50th groove and its variation are plotted.
In many cases, the depth of groove does not change along with the groove number, therefore in those cases the wheel wear was considered small.
In case of V5, VN5, S5 and SN5, however, the depth of groove apparently decreases with an increase of the groove number.
The radius of corner generally increased within the variation with an increase of groove number.
Online since: July 2015
Authors: Aziman Madun, Mohd Hazreek Zainal Abidin, Mohamad Faizal Tajul Baharuddin, Nor’aishah Md Ali, Saiful Azhar Ahmad Tajudin, Mohd Hafiz Zawawi
Detail forensic study related to groundwater leakage detection requires lots number of drilling in order to obtain high accuracy layout of the profile investigated.
As reported by [12,13,14,15,16], soil resistivity value can be varied due to the variation of basic geotechnical properties such as moisture content, densities, void ratio, porosity and grain size fraction.
Table 1 2-D Electrical resistivity data acquisition setting No Spread line reference number Array Total survey length, m 1 105 – 109 Schlumberger 116 2 110 – 113 Schlumberger 120 3 117 – 114 Schlumberger 88 4 132 – 136 Schlumberger 160 5 200 – 121 Schlumberger 120 6 123 – 128 Schlumberger 120 Results and Discussions Localize layout of the individual 2-D resistivity lines was given in Fig. 2-7 while globalize layout of the study area was given in 3-D image at Fig. 9-13.
Electrical resistivity value can be influenced by several factors such as the concentration and type of ions in pore fluid and grain matrix of geomaterials via the process of electrolysis where the current was carried by ions at a comparatively slow rate [24].
Ahmad (2013): The influence of soil moisture content and grain size characteristics on its field electrical resistivity, Electronic Journal of Geotechnical Engineering, 18/D, 699-705
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