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Online since: June 2014
Authors: Jian Lin, Yuan Yuan Gu, Guo Xing Wu, Hui Lu, Yan Cui
The comparison to education conception between American Private Universities and Chinese Private Higher Education Yuanyuan Gu1, a, Guoxing Wu1, b, Hui Lu1,c,Yan,Cui1,d, Jian Lin2, e 1Tianhua College of Shanghai Normal University, Section of Practice and Training, Shanghai, China 2Tongji University, School of Materials Science and Engineering, Shanghai, China ahannuo0615@163.com, bxhwuguoxing@hotmail, ccomjanetluck@126.com, dhellokitty@163.com,elin_jian@tongji.edu.cn Key word: American Private Universities, education conception, talent training mechanism, Chinese Private Higher Education Abstract.
Personnel training of Private Universities in United States thanks to its abundant human and material resources, but also benefited from the scientific, systematic personnel training system.
Online since: March 2008
Authors: Masanori Kikuchi, Akiyuki Takahashi, Yutaka Kobayashi
Phase Field Simulation of Rafting Behavior of γγγγ' Phase in Nickel Base Superalloy Akiyuki Takahashi1, a, Yutaka Kobayashi1,b and Masanori Kikuchi1,c 1 Department of Mechanical Engineering, Faculty of Science and Technology, Tokyo University of Science, 2641, Yamazaki, Noda, Chiba, 278-8510, JAPAN a takahash@me.noda.tus.ac.jp, byutaka@me.noda.tus.ac.jp, ckik@me.noda.tus.ac.jp Keywords: Phase Field, Rafting, Nickel base Superalloy, Interfacial Dislocation Network.
Introduction Nickel base superalloys have an excellent high temperature creep strength, and are used as a material of gas turbine blades.
The morphology of the γ' phase must be affected by the interfacial dislocation networks, and must be an element that controls the material property.
The material constants cij of the γ phase and the γ' phase at 1023K are (in the unit of GPa) γ11c =112.4, γ12c =67.2, γ44c =56.9, '11 γ c =166.7, '12 γ c =106.5, and '44 γ c =99.2 [1].
Therefore, one of the key parameters in the rafting behavior is the lattice misfit, which is defined by ( ) γγγ δ 00 ' 0 aaa −= .
Online since: September 2013
Authors: Xiao Ming Wang, Qiang Li
The behavior of the system can be effectively controlled to ensure the service quality by analyzing the structure of students support service system with “the learners as the center” and setting up the intervention points at the six key links of “teaching work supporting service,” “management supporting service,” “practice supporting service,” “resources supporting service,” “learning-assisted supporting service” and “technique supporting service” [7].
There are not only various characteristics of the natural material world in the learners’ thinking, emotions, will, and behavior, but also other advanced and complex features, that there are not above.
For this reason, there must be an exchange of materials, energies and information between the system and the outside world and the input from outside, to which the system opens, reaches a certain threshold.
Systems Science and Engineering: Theories and Applications, Shanghai Science and Technology Education Press, Shanghai, 2001.4, pp506-511
Online since: June 2008
Authors: Dun Bing Tang, G.J. Zhang, S. Dai
Dai College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, China.
Capturing inter-relationships between affiliated system elements is necessary if the product engineering is to be handled efficiently and effectively.
[4] Guenov M D and Barker S, in: Proceedings of ASME 2004 International Design Engineering Technical Conferences and the Computers and Information in Engineering Conference (DETC'04), September 28 - October 2, Salt Lake City, USA (2004) [5] Steward D: The design structure system: IEEE Transactions on Engineering Management, Vol. 3(1981), p.71 [6] Eppinger S D: Journal of Engineering Design, Vol. 2(1991), p.283 [7] Eppinger S.
D., Whitney, D., Smith, R., et al: Research in Engineering Design, Vol. 6(1994), p.1 [8] Eppinger S D and Salminen V, in: International Conference on Engineering Design, ICED 01, Glasgow, August 21-23, 2001 [9] Tang D, Zheng L, Li Z, et al: Computers & Industrial Engineering, Vol. 38(2000), p.479 [10] Yassine A and Falkenburg D: Journal of Engineering Design, Vol. 10(1999), p.223 [11] Yassine A, Whitney D, Eppinger S D, et al: Journal of Engineering Design, 2003, 14(3), p.377 [12] Suh N P and Sekimoto S.
Annals of the CIRP, Vol. 39(1990), p.145-148 [13] Park K J, Kang B S, Song K N, Park G J: Journal of Nuclear Science and Technology, Vol. 40 (2003), p.989 [14] Chin W S, Kwon J W, Lee D G: Journal of Composite Materials, Vol. 37 (2003), p.1109 [15] Chen K Z, Feng X A and Zhang B B: International Journal of Production Research, Vol. 41 (2003), p.171 [16] El-Haik B S, in: Axiomatic Quality: Integrating Axiomatic Design and Six-Sigma, Reliability, and Quality Engineering, Hoboken, N.J: Wiley-Interscience (2005).
Online since: April 2021
Authors: Rui Yu, Yong An Zhang
DFT and HAADF-STEM Investigations of the Zn Effects on β″ Phase Structure in a Zn Added Al-Mg-Si-Cu Alloy Rui Yu1,2,3,a, Yong-An Zhang1,2,3,b* 1State Key Laboratory of Non-ferrous Metals and Processes, GRINM Group Co., LTD., Beijing 100088, China 2GRIMAT Engineering Institute Co., LTD., Beijing 101407, China 3General Research Institute for Nonferrous Metals, Beijing 100088, China ayuruigrinm@163.com, bzhangyongan@grinm.com Keywords: Al-Mg-Si-Cu alloys; Zn addition; First-principles calculations; HAADF-STEM; β″ phase structure; Formation enthalpy; Density of states.
Al-Mg-Si-(Cu) alloys possess excellent compositive performance such as high strength, low density, corrosion resistance, good forming and welding properties, which are the main automobile body sheets material used to replace steel [1].
The material used in the HAADF-STEM characterization was a Zn added 6A16 alloy, the composition of which was 0.57% Mg, 0.94% Si, 0.18% Cu, 0.60% Zn, 0.12% Mn, 0.072% Fe and balance Al (wt.%).
Acknowledgements This study was financially supported by National Key R&D Program of China (No. 2020YFF0218202, 2016YFB0300802).
Online since: July 2011
Authors: Akhmad Herman Yuwono, Nofrijon Sofyan, Indriana Kartini, Alfian Ferdiansyah, Tego Hadi Pujianto
Nanocrystallinity Enhancement of TiO2 Nanotubes by Post-Hydrothermal Treatment Akhmad Herman Yuwono1*, Nofrijon Sofyan1, Indriana Kartini 2, Alfian Ferdiansyah1, Tego Hadi Pujianto1 1Department of Metallurgy and Materials Engineering, Faculty of Engineering Universitas Indonesia, Depok 16424, Indonesia 2Department of Chemistry, Faculty of Mathematic and Natural Sciences, Universitas Gajah Mada, Yogyakarta 55281, Indonesia * Email: ahyuwono@metal.ui.ac.id, Keywords: TiO2 nanotubes, amorphous, enhanced nanocrystallinity, post-hydrothermal Abstract.
Introduction In recent decades, titanium dioxide (TiO2) has been widely investigated as a key material for various strategic applications in the field of photocatalyst and photovoltaics, gas sensors, medical implants, and optical coating [1].
In solar energy conversion, for example, one-dimensional (0-D) materials have shown several advantages because of their unidirectional electron transport properties [3].
For reference purposes, XRD patterns of TiO2 P25 Degussa used as the starting material for the formation of nanotubes is given in Fig. 1.
Fig. 1: X-ray diffractogram of TiO2 P25 Degussa used as the starting material for nanotube formation, consisting of 79 wt% anatase () and 21 wt% rutile (n), with the average crystallite size of 29.75 and 18.87 nm, respectively.
Online since: October 2023
Authors: Elmi Abu Bakar, Yasmin Wadzer, Hussin Mamat
The Effect of Sonication Time on Thermal Conductivity and Stability of Graphene (Gr) and Aluminium Nitride (AlN) Yasmin Wadzer1,a, Hussin Mamat2,b* and Elmi Abu Bakar3,c 1,2,3School of Aerospace Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia akuyasmin@student.usm.my, b*hussinm@usm.my, cmeelmi@usm.my Keywords: Nanolubricant, sonication, stability, thermal conductivity Abstract.
Therefore, it is clear that the two key processes in respect to a nanolubricant's stability that might directly impact its thermo-physical characteristics are aggregation and sedimentation [4].
Materials and Methods Material.
In Advanced Functional Materials (Vol. 28, Issue 19).
Yu et al., Dispersion stability of thermal nanofluids, Progress in Natural Science: Materials International, vol. 27, no. 5.
Online since: February 2011
Authors: Lai Fei Cheng, Zhi Liang Hong, Juan Li Deng, Ke He Su
Thermodynamics on Formation of Condensed Phases during CVD Si3N4 Process with Sicl4-NH3-H2 Precursors Juanli Deng1,2,a, Laifei Cheng2,b, Zhiliang Hong2,c and Kehe Su3,d 1School of materials science and engineering, Chang'an University, Xi'an, Shaanxi 710064, P.
China 2National Key Laboratory of Thermostructure Composite, Materials, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, P.
China 3School of Natural and Applied Sciences, Materials, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, P.
[38] Hay Stephen O., Veltri R.D. and Lee W.Y., in: Proceedings of SPIE-The International Society for Optical Engineering, 1435 (1991), p. 352 [39] Yongsheng Liu, Laifei Cheng, Litong Zhang: J.
Xu: Journal of Inorganic Materials Vol. 21 (2006), p. 979 [41] Y.
Online since: November 2010
Authors: Yan Xiang Wu, Yong Mei Hu, Yu Qing Liu, Min Jie Xue
The design of recirculating aquaculture temperature control system based on PLC Yanxiang Wu 1, a, Yongmei Hu 1,b ,Yuqing Liu 1,c and Minjie Xue 2,d 1 Faculty of Engineering, Shanghai Ocean University, Shanghai, China 2 Faculty of Engineering and Information Technology, University of Technology, Sydney, Australia ayxwu@shou.edu.cn, bzjkd14@163.com, cyqliu@shou.edu.cn, dminjie_xue@hotmail.com Keywords: PLC; PID algorithm; closed circulating aquaculture; water level; temperature; Abstract.
As an important parameter, temperature is the key point of system control.
Lei: Research view on Aquaculture and Environmental Engineering Technology.
Chen: Develop Aquaculture engineering to promote the aquaculture technology.
Ni: The technology research and engineering practice of Circulating Water Breeding System.
Online since: September 2011
Authors: Shu Dong Wang, Guo Chong Lou
Study on Settlement of Highway Bed due to Underground Construction of Crossing Railway Tunnels Guochong Lou1,2,a, Shudong Wang 2,b 1 School of civil engineering, Beijing Jiaotong University, Beijing 100044 2School of civil engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043 algch36309@163.com, bwangshud@vip.163.com Keywords railway tunnels, ground settlement, highway bed, numerical simulation method Abstract Ground settlement due to construction of underground crossing railway bed is an important issue.
Duncan-Chang E-m model is adopted in analysis of foundation soil material.
Deep excavations and tunneling in soft ground [A].Proceedings of the7th International Conference on soil Mechanics and Foundation Engineering [C].Mexico City: State of the Art Volume,1969:225~290
Chinese Journal of Rock Mechanics and Engineering,Vol25-1(2006). in chinese
Chinese Journal of Rock Mechanics and Engineering,Vol.24-1(2005). in chinese
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