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Online since: July 2013
Authors: José Rodellar, Luis Eduardo Mujica, Claus Peter Fritzen, Fahit Gharibnezhad
Structural Health Monitoring (SHM) is a non-destructive method which aims to give, at every
moment during the life of a structure, a diagnosis of the "state" of the constituent materials, the different
parts, and the full assembly of these parts constituting the structure as a whole.
Rodellar, "Comparison of two robust PCA methods for damage detection in presence of outliers," Journal of Physics: Conference Series, vol. 305, no. 1, p. 12009, 2011
Staszewski, "Identification of non-linear systems using multi-scale ridges and skeletons of the wavelet transform," Journal of Sound and Vibration, vol. 214, no. 4, pp. 639-658, Jul. 1998
Farrar, "Wavelet-based active sensing for delamination detection in composite structures," Smart Materials and Structures, vol. 13, no. 1, pp. 153-160, Feb. 2004
Elsevier Science, 1998, p. 490
Rodellar, "Comparison of two robust PCA methods for damage detection in presence of outliers," Journal of Physics: Conference Series, vol. 305, no. 1, p. 12009, 2011
Staszewski, "Identification of non-linear systems using multi-scale ridges and skeletons of the wavelet transform," Journal of Sound and Vibration, vol. 214, no. 4, pp. 639-658, Jul. 1998
Farrar, "Wavelet-based active sensing for delamination detection in composite structures," Smart Materials and Structures, vol. 13, no. 1, pp. 153-160, Feb. 2004
Elsevier Science, 1998, p. 490
Online since: April 2016
Authors: Janusz T. Cieśliński, Przemysław Kozak
Abdulhassan et al. [13] demonstrated that heat transfer enhancement ratio depends on the material of nanoparticles: Al, Al2O3 and CuO while suspended in water.
Key Engineering Materials, Vol. 597, 2014, pp. 15-20; online available since 2013/Dec/13 [4] Kleinstreuer C., Feng Yu.: Experimental and theoretical studies of nanofluid thermal conductivity enhancement: a review, Nanoscale Research Letters 2011, 6:229 [5] Chandrasekar M., Suresh S.: A Review on the Mechanisms of Heat Transport in Nanofluids, Heat Transfer Engineering, http://dx.doi.org/10.1080/01457630902972744 [6] Buongiorno J. et al.: A benchmark study on the thermal conductivity of nanofluids.
Journal of Applied Physics 2009, 106, 094312-1-094312-14
-W.: Experimental investigation of turbulent convective heat transfer and pressure loss of alumina/water and zirconia/water nanoparticle colloids (nanofluids) in horizontal tubes, Journal of Heat Transfer 2008, Vol. 130, pp. 1-7 [12] Nasiri M., Etemad S.Gh., Bagheri R.: Experimental heat transfer of nanofluid through an annular duct.
World Academy of Science, Engineering and Technology, vol. 61, 2012 [14] Kalteh M., Abbassi A., Saffar-Avval M., Frijns A., Darhuber A., Karting J.: Experimental and numerical investigation of nanofluid forced convection inside a wide microchannel heat sink.
Key Engineering Materials, Vol. 597, 2014, pp. 15-20; online available since 2013/Dec/13 [4] Kleinstreuer C., Feng Yu.: Experimental and theoretical studies of nanofluid thermal conductivity enhancement: a review, Nanoscale Research Letters 2011, 6:229 [5] Chandrasekar M., Suresh S.: A Review on the Mechanisms of Heat Transport in Nanofluids, Heat Transfer Engineering, http://dx.doi.org/10.1080/01457630902972744 [6] Buongiorno J. et al.: A benchmark study on the thermal conductivity of nanofluids.
Journal of Applied Physics 2009, 106, 094312-1-094312-14
-W.: Experimental investigation of turbulent convective heat transfer and pressure loss of alumina/water and zirconia/water nanoparticle colloids (nanofluids) in horizontal tubes, Journal of Heat Transfer 2008, Vol. 130, pp. 1-7 [12] Nasiri M., Etemad S.Gh., Bagheri R.: Experimental heat transfer of nanofluid through an annular duct.
World Academy of Science, Engineering and Technology, vol. 61, 2012 [14] Kalteh M., Abbassi A., Saffar-Avval M., Frijns A., Darhuber A., Karting J.: Experimental and numerical investigation of nanofluid forced convection inside a wide microchannel heat sink.
Online since: July 2015
Authors: Abdul Aziz Ishak, Mohd Aizad Ahmad, Kamariah Noor Ismail
Journal of Chemical Engineering and Processing, vol. 47 , pp. 938–945
Key Engineering Materials, vol. 464, pp. 107-110
Applied Mechanics and Materials, vols. 58-60, pp. 1602-1607
Journal of Process Control, vol. 20, pp. 426–440
Advantages of shell-and-tube HEs in Process Heat Transfer, Chap. 6, Shell-and-tube HEs, 1st ed., Alpha Science International Ltd., p. 234.
Key Engineering Materials, vol. 464, pp. 107-110
Applied Mechanics and Materials, vols. 58-60, pp. 1602-1607
Journal of Process Control, vol. 20, pp. 426–440
Advantages of shell-and-tube HEs in Process Heat Transfer, Chap. 6, Shell-and-tube HEs, 1st ed., Alpha Science International Ltd., p. 234.
Online since: November 2012
Authors: Jie Liang Dong, Chang Hai Yu, Fei Yang
[1-2]
A Fan parameters and the specific structure of gear box vibration test
The vibration test is run for DaTang ZhuoZI wind farm, Fan main parameters are as follows Table 1:
Table 1 FAN MAIN PARAMETERS
Fan name
Suzlon
Fan diameter (M)
66
Rated rotate speed[r/min]
20.8
Tower drum materials
S235JR G2
Fan weight[t]
161.8
Fan form
The upwind in horizontal axis
Rated wind speed[m/s]
12
Tilt angle of rotor shaft[°]
6
Tower high[m]
63
Fan location
Upwind
Leaf number
3
Angle of yaw[°]
90
Cut in speed[m/s]
3
Fun materials
Steel epoxy glass
Swept area[m2]
3422
Tower drum bottom outside diameter[m]
4
Cut out speed[m/s]
25
Speed increasing ratio
74.917:1
Wheel hub center high[m]
65
Tower drum top inside diameter[m]
3.96
Fan tip speed[m/s]
71.84
Leaf length[m]
32
Leaf weight[kg]
19800
Tower drum top outside diameter[m]
3
Rated power[MW]
1.25
Tower drum connection form
Bolt joint
Cabin weight[kg]
44000
Tower drum bottom inside diameter[m]
2.98
This experiment is conducted for four
China Railway Science. 2002. 23(3), 52-54 [4] G.Y.
An-hui university journal. 2006. 230. 64-69 [5] Javier Sanz,Ricardo Perera,Consuelo Huerta.Fault.diagnosis of rotating machinery based on auto—associative neural networks and wavelet transforms[J].Journal of Sound and Vibration 2007,302:981-999
China Railway Science. 2002. 23(3), 52-54 [4] G.Y.
An-hui university journal. 2006. 230. 64-69 [5] Javier Sanz,Ricardo Perera,Consuelo Huerta.Fault.diagnosis of rotating machinery based on auto—associative neural networks and wavelet transforms[J].Journal of Sound and Vibration 2007,302:981-999
Online since: December 2012
Authors: Bao Jian Shen, Sheng Fu Ji, Peng Hui Zeng, Yun Liang, Xiang Hai Meng
Table 1 Properties of Venezuelan heavy oil
Density (20(oC)) (g/cm3)
0.951
Ca (μg/g)
221
Viscosity (100(oC)) (mm2/s)
62.16
Fe (μg/g)
388
Carbon residue (m%)
11.3
Na (μg/g)
3762
Saturates
37.2
Ni (μg/g)
78
Aromatics
48.6
V (μg/g)
2
Resin and asphaltene
14.2
Catalyst preparation and evaluation
Two parent NaY zeolites were chosen as the starting materials for the preparation of modified Y zeolite-based FCC catalysts in this study (Table 2).
Acknowledgements This work was financially supported by the Science Foundation of China University of Petroleum, Beijing (KYJJ 2012-03-01) .
Min: Advanced Materials Industry Forum, Vol. 1 (2001), p. 1 [4] Z.
Liu: Chinese Journal of Catalysis, Vol.33 (2012), p.152 [11] J.
Feng: Journal of Fuel Chemistry and Technology Vol. 33 (2005), p. 440 [14] X.N.
Acknowledgements This work was financially supported by the Science Foundation of China University of Petroleum, Beijing (KYJJ 2012-03-01) .
Min: Advanced Materials Industry Forum, Vol. 1 (2001), p. 1 [4] Z.
Liu: Chinese Journal of Catalysis, Vol.33 (2012), p.152 [11] J.
Feng: Journal of Fuel Chemistry and Technology Vol. 33 (2005), p. 440 [14] X.N.
Online since: August 2014
Authors: Yi Qiang Li, Yan Yue Li, Yi Bo Xu, Zhe Yu Liu
Experimental materials, procedures and schemes
2.1 Experimental materials
(1) nuclear magnetic resonance instrument; (2) standard core flooding equipment; (3) the experimental oil: kerosene free from hydrogen (no nuclear magnetic resonance signal), viscosity of 45 ˚C is 9.6mPa.s; (4) ordinary polymer, refining III polymer surfactant, Haibo III polymer surfactant (viscosity is seen in Table 1); (5) the experimental water: the water and sewage; (6) core: natural core from coring wells.
Chinese Journal of Magnetic Resonance, 2005, 22 (1): 67-72.
Beijing: Graduate University of Chinese Academy of Sciences, 2011.
Chinese Journal of Magnetic Resonance, 2006, 23 (3): 380-383.
Chinese Journal of Magnetic Resonance, 2005, 22 (1): 67-72.
Beijing: Graduate University of Chinese Academy of Sciences, 2011.
Chinese Journal of Magnetic Resonance, 2006, 23 (3): 380-383.
Online since: February 2012
Authors: Xiao Jiang, Long Di Cheng, Qin Wang, Elena Stojanovska, Wen Hong Fan
Fig.1 Fibers growing on the plant
Akund fiber is a kind of natural cellulose fibers, it has excellent properties, and its product has good wearing characteristics for example, good hydraulic conductivity which can make the body excretion of sweat through the fabric easier, so the discomfort will be reduced and because of the big hole it is a good material of keeping warm [4].
Experimental Material: akund fibers.
Material properties: fineness of the fibers is 0.93~0.97dtex, breakage strength is 3.03CN, coefficient of friction is 0.336.
Zhang:Strcuture and Thermal Properties of Kapok.Journal of Zhongyuan University of Technology(In Chinese),2008,(19):p.47-51
Liu,J.Yu,W.Wang,Z.Xia:Refining Pretreatment of Jute Fibers.Journal of Advances In Textile Technology(In Chinese) ,2008,(2):p.69-71
Experimental Material: akund fibers.
Material properties: fineness of the fibers is 0.93~0.97dtex, breakage strength is 3.03CN, coefficient of friction is 0.336.
Zhang:Strcuture and Thermal Properties of Kapok.Journal of Zhongyuan University of Technology(In Chinese),2008,(19):p.47-51
Liu,J.Yu,W.Wang,Z.Xia:Refining Pretreatment of Jute Fibers.Journal of Advances In Textile Technology(In Chinese) ,2008,(2):p.69-71
Online since: May 2011
Authors: Guo Hua Song, Dong Wei Wang, Bing Kang Liu
Study on Seismic Behavior of Vertical Connection
in Prefabricated Reinforced Concrete Structures
Guo Hua Song1, a, Dong Wei Wang1,b and Bing Kang Liu2,c
1 School of Civil Engineering, Zhengzhou University,No.100 of Science Road, Zhengzhou, Henan, China, 450001
2 School of Civil Engineering, Hefei University of Technology,No.193 of Tunxi Road, Anhui, China, Hefei 230009
a guohuasong_309@163.com, b dongweiwang@zzu.edu.cn, c liubingkang@hfut.edu.cn
Key words: Prefabricated reinforced concrete structures, Vertical connection, Connection width, Connecting bar, Shear resistance
Abstract.
(3) The shear mechanisms after sudden-cracking Weakened MDCC MDCC still can be used after sudden-cracking, but whose action is weakened by repeated loading, because of crossed cracks and worn material intersection.
Acknowledgements This work was financially supported by the National Natural Science Foundation (50978232), and Natural Science Research Program of Henan Province Education Commission (2009A560014).
[3] Bingkang Liu, Guohua Song and Dongwei Wang: submitted to Journal of Zhengzhou University (Engineering Science). (2):74-78(2002) (in Chinese) [4] R.Park and T.Pauly: Reinforced Concrete Structures.
ACI Structural Journal. 86(3): 242-149(1989) [6] The compiling group of 《Prefabricated panel buildings》(1997), “Prefabricated big panel buildings,” Beijing: China construction industry press (in Chinese).
(3) The shear mechanisms after sudden-cracking Weakened MDCC MDCC still can be used after sudden-cracking, but whose action is weakened by repeated loading, because of crossed cracks and worn material intersection.
Acknowledgements This work was financially supported by the National Natural Science Foundation (50978232), and Natural Science Research Program of Henan Province Education Commission (2009A560014).
[3] Bingkang Liu, Guohua Song and Dongwei Wang: submitted to Journal of Zhengzhou University (Engineering Science). (2):74-78(2002) (in Chinese) [4] R.Park and T.Pauly: Reinforced Concrete Structures.
ACI Structural Journal. 86(3): 242-149(1989) [6] The compiling group of 《Prefabricated panel buildings》(1997), “Prefabricated big panel buildings,” Beijing: China construction industry press (in Chinese).
Online since: June 2019
Authors: Tung Han Chuang, Jui Hung Yuan
Due to cost considerations, for these mid-power LED packages, the wire bonding process is employed and cost effective wire materials are used instead of gold wire.
The trend in wire materials is to reduce the gold content to 80% or 60% in Au wires, and then to increase the silver addition by over 80%.
In the past, Ag-alloy wire bonding materials have been studied for IC electronics packaging components.
Gam, et al., Effects of Cu and Pd addition on Au bonding wire/Al pad interfacial reactions and bond reliability, Journal of Electronic Materials 35 (2006) 2048-2055
Chen, et al., Observation of atomic diffusion at twin-modified grain boundaries in copper, Science 321 (2008) 1066-1069.
The trend in wire materials is to reduce the gold content to 80% or 60% in Au wires, and then to increase the silver addition by over 80%.
In the past, Ag-alloy wire bonding materials have been studied for IC electronics packaging components.
Gam, et al., Effects of Cu and Pd addition on Au bonding wire/Al pad interfacial reactions and bond reliability, Journal of Electronic Materials 35 (2006) 2048-2055
Chen, et al., Observation of atomic diffusion at twin-modified grain boundaries in copper, Science 321 (2008) 1066-1069.
Online since: August 2022
Authors: R. Raffik, Harish Sharma, Daha Shehu Aliyu, Francis Kwesi Bondinuba, Rabah Mahmoud Ahmad Ismail, B. Kannadasan
These materials are used as alternate for crude aggregate in building material production.
The E-waste materials are used as bituminous mixture.
Concrete is in high demand around the world as a building materials.
While the non-metallic materials are reused for wide application [32].
Reused plastic are applied for making a maritime building materials, it is cost-effective and ecologically friendly than traditional marine construction materials [34].
The E-waste materials are used as bituminous mixture.
Concrete is in high demand around the world as a building materials.
While the non-metallic materials are reused for wide application [32].
Reused plastic are applied for making a maritime building materials, it is cost-effective and ecologically friendly than traditional marine construction materials [34].