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Online since: February 2016
Authors: Andrzej Kiełbus, Łukasz Poloczek, Bartłomiej Dybowski
Procedure for microsections preparation consisted of grinding on the SiC abrasive papers with grades 120÷2400 and polishing on the diamond suspensions with mean grain size 6 μm, 3 μm and 1 μm.
Final polishing step was done using Struers Op-U colloidal silica suspension with mean grain size 0.05 μm.
After Na addition, the number of shrinkage pores increased (mean shape factor of the pore flat section = 0.752).
Adamiec, Methodology of quantitative evaluation of porosity, dendrite arm spacing and grain size in directionally solidified blades made of CMSX-6 nickel alloy, Mater.
Online since: November 2012
Authors: Gréta Gergely, Chang Hoon Chae, Hye Young Sim, Seong Gon Kim, Csaba Balázsi, Katalin Balázsi, Je Yong Choi
The cuticle layer represents the outermost surface and it consists of a number of proteins.
The average grain size is 2-3 μm.
SEM investigations confirm that the average grain size is decreased from micrometers to 100 – 200 nm.
The average size of globular grains is ~ 200 nm and the nanograins is ~ 70 nm.
Online since: January 2014
Authors: Hang Guo, Jie Lin, Chang Liu, Qi Liu
SEM picture (Fig.3) shows that with the increasing of doped Cu, the SnOx particles on the surface of thin films become smaller, and the contact areas between SnOx grain and lithium ion become bigger.
Fig. 4 Discharge capacity curves of SnOx vs. cycle number.
Fig.7 Discharge capacity curves of all-solid-states thin film lithium-ion micro-batteries vs. cycle number 3.
Online since: July 2008
Authors: Naoaki Noda, Biao Zhang, Kazuhiko Yonemaru, Shota Higo, Yoshihiro Takamatu
The total number of elements is 60450, and total number of nodes is 77868.
Fig.6 Method of analysis Fig.7 Three kinds of models analyzed Fig.4 Example of FEM mesh for 3D model Fig.5 Boundary conditions of the model *ABCE*BCAE * CABE References [1] Abb research ltd., "Method of forming motor", Japan patent (in Japanese), 2004-505595 [2] Kumai, S., and Yaskawa electric corp., "Winding accumulating core of motor", Japan patent (in Japanese), s51-40506 [3] Kikuchi, Y., Fukuda, Y., Maeyama, K., and Fujitsu general ltd., "Motor", Japan patent, 2005-160170 [4] Sakanishi, S., Asai, T., Koyama, M., and Kuroda precision ind. ltd., Mitsuba electric mfg. co. ltd., "Method and device for manufacturing winding stator core", Japan patent, h2-106151 [5] Mizutani, K., and Toshiba corp., "Manufacture of annular core", Japan patent, h1-264548 [6] Kaido, C., "Spiral Core made of Grain-oriented Electrical Steel Sheet", IEEJ Transactions on Industry Applications, Vol. 116, No. 3 (1996), pp. 265-270 0 1 1.04 1.08 1.12 1.16
Online since: March 2011
Authors: Dong Hui Wen, Wei Fang Wang, J. Zhang
Although previous studies have created a number of high-precision surface finishing methods and processes, research institutions at home and abroad are still actively exploring a new method of high-quality, high efficiency and low cost to surface processing[4,5].
Radiating surface to do even vibration, the output frequencyis , circular frequency , ignore the impact of particle and bubble, sound velocity in the slurrycan be considered equal with speed of sound in water is .Output of ultrasonic wave number , wavelength .
(a) Single sound source (b) Multiple sound source Fig.3 Flow field of the slurry It can be seen from the Fig.3 by contrast, when a single sound source to vibrate, the flow distribution of grain is much uniform in the container.
Online since: July 2011
Authors: Bo Huang, Zeng Wen Liu
Table 1 Cutter parameters Parameters Value Diamond grain size [#] Concentration [Kts/cm] Cutter weight [g] Cutter diameter [mm] Tooth number Tooth width [mm] Cylindrical diameter [mm] Maximum diameter [mm] 45/50 120 612 59 16 6 51 96 The material for experiment is a kind of granite from Jinan, China.
(2) Where, v is the peripheral speed of cutter, is the number of tooth, is the feed rate in each tooth, d is the diameter of cutter.
Online since: September 2014
Authors: Zhen Jie Zhang, En Dao Xu, Zhi Ping Chen, Cun Jun He
Fig.3 Wave port Waveport1 Fig.4 Wave port Waveport2 When calculating the parameters, assuming the Solution Frequency(i.e. frequency adaptive grid subdivision) is 10GHz, Maximum Number of Passes is 20, Maximum Delta S is 2%,Number of Modes is 1,analyzing the lowest order mode.
Advances in sensing grain moisture content by microwave measurements[J].
Online since: December 2014
Authors: Wei Gao, Shi Liang Zhang
Many studies [3-11] on melting argue that homogeneous and heterogeneous nucleation of melt will be formed at surface, interface, grain boundaries, defect and dislocation etc.
The MD program XMD [14] was performed under the constant number, pressure and temperature ensemble (NPT).
Fig.3a shows the time when the system has no the Lindemann particles, and Fig.3b shows the scenario where the number of Lindemann particles is less than 1.9%.
Online since: December 2013
Authors: Bin Ji, Dao Xiang Wu
The number of calcareous nodules in each group can be calculated from the result, and then the anisotropic ratio is obtained according to the standard deviational ellipse about the above results: the main orientation angle is 86.55◦, and the anisotropic ratio is 82.6%, which indicates that the anisotropic ratio of this sample is large.
Granularity dimension of calcareous nodules is calculated as Dg, w here εis the particle diameter, N (ε) is the number of particles smaller than the particle diameter.
(in chinese), 2004, 26: 244-247 [10] WANG Baojun, Theories and methods for soil grain orientation distribution in SEM by standard deviational ellipse.
Online since: December 2006
Authors: Hidetoshi Sakamoto, Kazuo Satoh, Shigeru Itoh, Shinjiro Kawabe, Masahiro Himeno
Previous paper showed the relations between the explosive distance from bottle, the explosive velocities in the case of one bottle and the "Cullet" grain size distributions.
The experiments were executed in nine kinds of patterns according to the inside state of bottle (air charge or water charge), the number of bottles (1,2,3), the arrangement of bottles (series or concentric circle), the amount of explosive and the shape of explosive (stick type or sphere type) shown in Table 1
In this arrangement, the "Cullet" size distributions are almost constant regardless the number of bottles.
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