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Online since: February 2017
Authors: Astrid Pundt, Vladimir Burlaka, Kai Nörthemann
Nb-H Thin Films: On Phase Transformation Kinetics Vladimir Burlaka1, a, Kai Nörthemann1b and Astrid Pundt1,c * 1Institute of Material Physics, University of Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany avburlaka@ump.gwdg.de, bnoerthem@ump.gwdg.de, capundt@ump.gwdg.de Keywords: thin film, phase transformation, kinetics, metal-hydrogen systems.
High purity niobium (99.99%) was used as target material.
Pundt, International Journal of Hydrogen Energy 41 (2016) 2727
Fukai, The Metal-Hydrogen system, Springer Series in Material Science 21, Springer-Verlag, Berlin, Heidelberg, 1993, pp. 104-133
Online since: May 2014
Authors: Dai Chao Sheng, Dong Wang, George P. Kouretzis
Kouretzis1, a, Daichao Sheng1,b and Dong Wang2,c 1ARC Centre of Excellence for Geotechnical Science and Engineering, Faculty of Engineering and Built Environment, The University of Newcastle, Australia 2Centre for Offshore Foundation Systems, The University of Western Australia aGeorgios.Kouretzis@newcastle.edu.au, bDaichao.Sheng@newcastle.edu.au, cDong.Wang@uwa.edu.au Keywords: cone penetration, sand, elastoplastic model, relative density, centrifuge tests.
The constitutive model has the same degree of flexibility when it comes to capturing different soil behavior as existing cone-cap [e.g. 8, 9] or bounding surface models [e.g. 10, 11], but with fewer material parameters and a better mathematical smoothness; rendering it ideal for the simulation of large-strain problems.
Furthermore, its material parameters can be easily determined from conventional laboratory tests, such as triaxial tests.
The model has only 7 material parameters that are all associated with a clear (at least phenomenological) physical meaning, and thus can be directly determined from conventional laboratory tests: 1.
I: mathematical foundation and hypoelasticity, Journal of Engineering Mechanics ASCE, 112-EM9 (1986) 966-987
Online since: July 2011
Authors: Duo Li Chai, Wu Bin
Highly ordered iron-containing mesoporous material, Fe-MCM-41, with 0.5~4 mol% Fe/Si loading was prepared and exhibited high catalytic activity in phenol hydroxylation using H2O2 as oxidant [8], and so on.
Acknowledgements The project was financially supported by Anhui Colleges and Universities Provincial Natural Science key research projects (KJ2008A066).
Journal of Hazardous Materials.
Online since: November 2015
Authors: Andrzej Szychowski, Beata Potrzeszcz-Sut
In the civil engineering neural networks are used in many issues of simulation, identification and evaluation of the technical condition of the structure, e.g. elastic-plastic analysis of shields and plates [5], structural reliability analysis [5, 6], identification of the material of existing structures [5, 7], fitting of FE models [8].
Hybrid systems integrating FEM and AMM for the analysis of selected problems of structural and material mechanics (in polish).
ANN constitutive material model in the shakedown analysis of an aluminum structure.
Computer Assisted Methods in Engineering and Science 21(2014) 49-58
Journal of Constructional Steel Research 62 (2006) 716–722
Online since: October 2008
Authors: Ying Xue Yao, Yue Dong Lang, Ping Jun Xia, P. Chen
Although Cybersphere system permits operator to walk freely, the sphere has to support the operator and rotate continuously, so its material property is required quite high and it is rather difficult to manufacture.
Srinivasan: ASME Transactions of Journal of Computing and Information Sciences in Engineering, Vol. 3 (2001), pp. 72-83
Key Engineering Materials, Vol. 316 (2006), pp. 556-560
Online since: August 2012
Authors: Wei Dong He, San Jiu Ying, Fu Ming Xu, Zheng Gang Xiao
Modeling and Calculation of Initial Ignition Gas Pressure Flow Through the Rigid Porous Media in 100 mm Ignition Simulator Zhenggang Xiao, Weidong He, Sanjiu Ying and Fuming Xu School of Chemical Engineering, Nanjing University of Science and Technology Nanjing, Jiangsu Province, P.
Meyer, Constitutive modeling of porous viscoelastic materials, European Journal of Mechanics A/solids, 26(2007) 936-955
Collins, Flow of fluids through porous material.
Online since: December 2014
Authors: Bo Guo
The total project cost of the program is 966,600 Yuan, with an average of 30,000 Yuan per linear meter The second project, outsourcing Rib reinforcement steel sheet, as shown in Figure 2: (1) By anchor aging thickness of 6mm steel plate to reinforce the main arch, ring arch rib and cross collar beam, By using special materials to fill gaps between steel plate and the original concrete , so that making it to form a whole with the original arch rib , to become a steel concrete composite structure, while wrapping up the cross collar beam to form a whole with the main arch rib , which greatly enhance the overall stability of the whole bridge; (2) By taking carbon fiber sheet to reinforce cracks, which on more concentrated parts of surface of arch, arch abutments and of the arch wave; (3) By using epoxy resin mortar directly reinforce and repair the arch, arch abutments , local defects wave and concrete damaged area; (4)Repair the partial damage on the surface of the original bridge
(4) Seal and paste grouting mouth Sealing up all the edge of components in steel skeleton with sealing material, Drilling on the edge of the steel skeleton in the proper position, pasting grouting mouth and setting aside the vent
Civil engineering structure experiment [M].Wuhan: wuhan university of science and technology press, 2003
Journal of tongji university, 1994 (1) : 21 ~ 26
Online since: April 2014
Authors: A.S. Kamzin, M.V. Tkachenko, L.P. Ol’khovik, T.M. Тkachenko, S. Keshri
In addition, these materials have satisfactory mechanical properties [6].
Artificial hydroxyapatite is as good in biocompatibility as bio- logical hydroxyapatite, which is obtained from natural materials [13].
Thus, many works have been published concerning studies of biomagnetic materials for medicine.
Chemical composition of the ferrite and the technological and magnetic parameters of powder materials at 300 K No.
Olkhovik, in Proceedings of the International Conference “Functional Materials,” Partenit, Crimea, Ukraine, October 1–7 (2007) 503
Online since: November 2011
Authors: Xue Chun Zhang, Hui Wang, Hui Xiao, Qiu Ting Zhang, Yuan Wen Mao, Yi Dong Liu, Zong Cai Tu, Xiao Qin Huang
Starch is the main component of fruit, seed, tuber, root tuber in green plant and is an important reproducible industrial material.
Materials and methods 2.1.
Materials The hardleaf oatchestnut fruits from Jiangxi province of China were dried in the oven at 45℃for 48h, then grounded into flour with a pulverizer.
It is the extent to which a material can be deformed before it ruptures [34].
Wu, Clinical observation on children autumn diarrhea treated with hardleaf oatchestnut fruit powder, Clinical Medicine Journal. 2 (2001) 53 (in Chinese)
Online since: August 2014
Authors: Ya Hong Wang, Jia Xing Xue, Zhou Wei Zhang
Mathematical model 1.1 Pipe material and specification According to the systematic pressure and corrosion allowance, the pipeline was adopted [24-26] and its diameter and thickness was properly selected for easily bending and winding.
The pipe size of f25 mm´2.5 mm and the material of 1Cr18Ni9Ti were selected.
Practical handbook metallic materials[M].
Hunan: Science and Technology Press in Hunan, 2010-01
Numerical simulation and experiment on double pressure control relief throttle valve[J].Journal of Mechanical Engineering, 2010, 46(22), 130-135
Showing 96081 to 96090 of 97103 items