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Online since: May 2019
Authors: Volodymyr Bondarenko, Vasyl Klymenko, Vasyl Gutsul, Viktor Martynenko, Peter Stets
It is known that for the description of the kinetics of processes of crystallization of melts of metals, low molecular weight materials, etc., the experimentally validated Kolmogorov-Avrami equation [45, 46] is often used, which for the above-mentioned symbols will have the form:
(31)
where – the value of the total mass of gas hydrates at the time t; z – constant rate of crystallization; n – coefficient dependent on the mechanism of formation and growth of crystals.
Eastern-European Journal of Enterprise Technologies, 5(6(89)), 48-55
International Journal of Chemical Engineering, ID 262968
Oil & Gas Science and Technology Ð Rev.
Eastern-European Journal of Enterprise Technologies, 5(6(89)), 48-55
International Journal of Chemical Engineering, ID 262968
Oil & Gas Science and Technology Ð Rev.
Online since: October 2010
Authors: Gui Cheng Wang, Chun Gen Shen, Shu Lin Wang, Wen Wu Nie, Gang Liu
HSK63A toolholder was built based on the ISO12164-1 standard using the parametric method, their physical and mechanical properties were shown as follow in Table 1:
Table 1 Material properties of HSK63A tool system components
Appellation
Material
Density
[Kg/m3]
Young modulus [GPa]
Poisson ratio
Tensile strength limit [MPa]
Yield strength [MPa]
Tool holder
40CrNi2Mo
7.85
193
0.284
1240
1178
Cutting tool
Cemented Carbide
19.3
400
0.28
980
750
We combined the toolholder and collect chunk as one part for reducing the computing scale with the finite element method, so we only need to establish finite element model of toolholder and cutting tool.
Davies and M.D.Kennedy: Journal of Manufacturing Science and Engineering, Vol. 123(2001), pp. 700~707
Davies and M.D.Kennedy: Journal of Manufacturing Science and Engineering, Vol. 123(2001), pp. 700~707
Online since: November 2012
Authors: Xi Min Liu, Li Qin Li, Li Bin Zhao, Da Yu Wang, Xing Wang Wen
Fig. 3 Positions for presetting anti-deformation on the stringer
Fig. 4 Positioning and clamping point of the set
The determination of anti-deformation
Anti-deformation ƒ0 of frame rails is preliminarily estimated by formula (1)[8]:
f0=== (1)
Where is yield strength of materials at high temperature, E2 is elastic modulus, l is the length of the stringer, y is the distance of the weld away from the neutral axis.
Journal of Japan Welding Socity,1959,27(6):13-20
Wuhan: Huazhong University of Science and Technology Library, 2005.4
Journal of Japan Welding Socity,1959,27(6):13-20
Wuhan: Huazhong University of Science and Technology Library, 2005.4
Online since: May 2011
Authors: Xiang Lin Gu, Qing Hua Huang, Wei Ping Zhang, Qing Zhang Zhang
The transmission of chloride ion in concrete is a complicated procedure, which is not only related to the external environment, but also the material properties and quality of concrete itself.
Arliguie: submitted to Material and Structures (1998) [4] Y.S.
Xu: submitted to Journal of Harbin Institute of Technology (2006) [9] Duracrete.
Chen: submitted to Tsinghua Science and Technology (2008) [11] B.J.
Arliguie: submitted to Material and Structures (1998) [4] Y.S.
Xu: submitted to Journal of Harbin Institute of Technology (2006) [9] Duracrete.
Chen: submitted to Tsinghua Science and Technology (2008) [11] B.J.
Online since: January 2014
Authors: Eddy S. Koenhardono, Eko Budi Djatmiko, Adi Soeprijanto, Mohammad I. Irawan
Proceedings of IMarEST - Part A - Journal of Marine Engineering and Technology,. 2005 Dec;Volume 2005(Number 7):25–32(8)
Technical University of Hamburg-Harburg, Germany: IMarEST, Institute of Marine Engineering, Science and Technology; 1993. p. 9.1–9.14
Applied Mechanics and Materials. 2011 Oct;121-126
Technical University of Hamburg-Harburg, Germany: IMarEST, Institute of Marine Engineering, Science and Technology; 1993. p. 9.1–9.14
Applied Mechanics and Materials. 2011 Oct;121-126
Online since: January 2013
Authors: Wen Wei Li, Qing Du, Gang Di, Rui Xin Wang
Tab 1 Cylinders sample chemical composition Found GB5099 standards specified value comparison
Chemical composition
C
S
P
S+P
Si
Mn
Measured values
0.40
0.006
0.014
0.02
0.27
1.73
Standard
Values
0.33-0.40
≤0.030
≤0.035
≤0.06
0.17-0.37
1.35-1.75
According to GB/T228-2002 Metallic materials-room temperature tensible test method, the mechanical properties of the samples of the accident cylinders are measured, and results are shown in Table 2.
Analysis and Calculation on Filling Process Explosion of Oxygen Cylinder Containing Oil[J].Journal of Safety Science and Technology, 2011(4):18~23(In Chinese) [7]ZHUANG Shengqiang, FENG Yimin.
Analysis and Calculation on Filling Process Explosion of Oxygen Cylinder Containing Oil[J].Journal of Safety Science and Technology, 2011(4):18~23(In Chinese) [7]ZHUANG Shengqiang, FENG Yimin.
Online since: July 2014
Authors: Shou Hua Yu, Ji Hong Chen, Jing Ying Ou, Dan Chun Xu
Acknowledgements
This work was supported by the Science and Technology Planning Project of Guangdong Province in China (Grant No: 2012A020602043).
Journal of Image and Graphics, 2011, 16(10): 1826-1831.
Advanced Materials Research, 2012, 403-408: 2271-2276.
Journal of Image and Graphics, 2011, 16(10): 1826-1831.
Advanced Materials Research, 2012, 403-408: 2271-2276.
Online since: January 2018
Authors: Hanaa Y. Ghorab, Hossam E.H. Ahmed, Ali S. Shanour, Hamdy M.A. Wahdan
Wahdan2,d
1Faculty of Science, Helwan University, Cairo, Egypt
2Faculty of Engineering, Shoubra, Benha University, Cairo, Egypt
aHanaa.ghorab@gmail.com. bHossam-heliopolis@hctc.com, cali.shnor@feng.bu.edu.eg, deng_hamdy.whdan2031@yahoo.com
Keywords: Portland limestone cement; Calcined clays, Sulfate solutions, Compressive strength, Expansion, 5oC
Abstract.
The use of calcined clays as pozzolanic material in cement is known as early as the beginning of the twentieth century [1].
The fineness of the ground material was 3654 (cm2/g) Blaine.
On the durability of Portland limestone cement: effect of pH on the thaumasite formation HBRC Journal (accepted, in press)
The use of calcined clays as pozzolanic material in cement is known as early as the beginning of the twentieth century [1].
The fineness of the ground material was 3654 (cm2/g) Blaine.
On the durability of Portland limestone cement: effect of pH on the thaumasite formation HBRC Journal (accepted, in press)
Online since: January 2005
Authors: Sang Min Park, Soon Hwa Jung, Soung Hee Park, Sang Done Kim
Journal Citation (to be inserted by the publisher)
Copyright by Trans Tech Publications
Silicon oxide thin film deposition on alumina in a circulating
fluidized bed reactor
Sang Min Park
1
, Soon Hwa Jung2 , Soung Hee Park
3
,
Sang Done Kim
1 **
1
Department of Chemical and Biomolecular Engineering,
Korea Advanced Institute of Science and Technology,
373-1 Guseong-dong, Yuseong-gu, Daejeon, 305-701, Korea
2
Cooperative R&D, LG Chem, Ltd., Research Park, Yuseong-gu, Daejeon, 305-380, Korea
3
Department of Chemical Engineering, Woosuk University, 490, Hujung-ri, Samrye-up,
Wanju-gun, Chonbuk, 565-701, Korea
**Corresponding author : kimsd@kaist.ac.kr
Keywords: plasma, CVD, circulating fluidized bed, powder, TEOS, HMDSO, atmospheric
pressure.
Also, these types of precursor allow the deposition of a large variety of materials, from silica to silicon polymers, with different properties [3, 4].
Also, these types of precursor allow the deposition of a large variety of materials, from silica to silicon polymers, with different properties [3, 4].
Online since: September 2013
Authors: Shi Ping Zhang, Yi Chao Ding, Wen Li Zhang
Beijing: Science Press, 2008
Beijing: China Building Materials Industry Press, 2004, 3
Journal of NanjingUniversity of Aeronautics and Astronautics, 2003, 36(2): 267-272
Beijing: China Building Materials Industry Press, 2004, 3
Journal of NanjingUniversity of Aeronautics and Astronautics, 2003, 36(2): 267-272