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Modeling Approach of a Near-Space Airship Using Newton-Euler and Lagrangian Formulation Yueneng YANGa, Jie WUb and Wei ZHENGc Lab of Fight Dynamics and Control, Aerospace and Materials Engineering, National University of Defense Technology, No.47 Yanwachi Street, Kaifu District, Changsha,410073, China ayangyueneng@163.com, bwujie_nudt@163.com, czhengwei_nudt@163.com Keywords: Dynamics Modeling; Lagrangian Formulation; Near Space; Airship Abstract.
Pancotti, An overview of advanced concepts for near space systems.
Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition.
Journal of Systems Engineering and Electronics.
PhD thesis, Department of Mechanical Engineering McGill University, (2008)

Investigation of Drag Reduction due to Dimpled Surfaces in Narrow Channels by Means of Flow Simulations Julian Praß1,a*, Jörg Franke2,b and Stefan Becker1,c 1Institute of Processmachinery and Systems Engineering, Cauerstraße 4, 91058 Erlangen, Germany 2Institute for Factory Automation and Production Systems, Egerlandstraße 7-9, 91058 Erlangen, Germany apr@ipat.uni-erlangen.de, bjoerg.franke@faps.fau.de, csb@ipat.uni-erlangen.de *corresponding author Keywords: CFD, RANS, Dimples, Drag Reduction Abstract.
Dean, Reynolds Number Dependence of Skin Friction and Other Bulk Flow Variables in Two-Dimensional Rectangular Duct Flow, in: Journal of Fluids Engineering, volume 100, no.
Praß et al., Numerical Investigation of a Friction Ventilator for Different Geometrical Setups, in: Advanced Engineering Forum, volume 19, (2016), pp. 35-42

College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing,210016 China 2.
Yang, Advanced Areanautical Aluminum Alloy Materials Technology and Application, Beijing: National Defend Industry Press, 2012
Key Engineering Materials. 458(2010)283-288
Sharan, Finite Element Simulation of the Orthogonal Machining Process with Al 2024 T351 Aerospace Alloy, Procedia Engineering . 64 (2013) 1454 – 1463
Materials Science Forum Vols. 800-801 (2014) 368-373

At the same time, engineering innovations were developed for electromechanical equipment that could automatically record data obtained during a fire experimentally.
The above mathematical, scientific, and engineering breakthroughs provided the foundation for the first revolution in fire resistance testing.
History of Fire Protection Engineering, National Fire Protection Association, Quincy, MA, 2003
Chow, Review on the requirements on fire resisting construction, International Journal on Engineering Performance Based Fire Codes. 3 (2002) 68–83
Poklonsky, Refinement of the parameters of concrete "stress-strain" diagram at elevated temperatures, Bulletin of Odessa State Academy of Civil Engineering and Architecture. 46 (2012) 360–367

Some teachers believe that although multimedia teaching represents an advanced education concept, totally replacing blackboard writing by computers is against the cognitive regulation and teaching theory.
Summary It is a complicated systematic engineering to building an evaluation system for multimedia teaching, meanwhile, which is an entire new research project of modern education and teaching domain.
References [1] Yali Zheng, Zhenyuan Ding: Performance analysis of multimedia teaching in higher education institutions, Journal of Technology College Education, vol. 26, no. 4, pp. 55-58, (2007) [2] Yuan Zhou: Investigation analysis and tactics research on higher education multimedia teaching effect, China University Teaching, no. 2, pp. 86-88, (2010) [3] Fuli Qin: Problem and solution of multi-media teaching in colleges, Higher Education Forum, no. 5, pp. 107-110, (2005) [4] Hongchang Li, Yuxin Sui, Kebo Zhan: Scientifically implement multimedia teaching model and continuously enhance instructional quality, China Higher Education Research, no. 9, pp. 73-74, (2004) [5] ChuanMing Sun, Guoxin Tan, Zheng Zhong.
Research on the Evalution System of Multimedia Teaching for Engineering Course, ETCS 2009, Wuhan, China, vol. 2, pp.1114-1117, (2009) [6] Li Chengbiao, Mao lei: Evaluation and Control on the Quality of Multimedia Teaching in Higher Educational Institutions, CNMT 2009, Wuhan, China, unpublished.(2009) [7] Shuzhong Liang: Supervision and evaluation for the multi-media teaching quantity, Journal of Anhua Technical College of Water Resources and Hydroelectric Power, vol. 6, no. 3, pp. 82-84, (2006)

.; s_norouzi@mapnaequipment.com 2 School of Metallurgy and Materials Engineering, University of Tehran; hfarhangi@ut.ac.ir Key words: Residual Stress; Chemical Composition; Pouring Temperature; Investment Casting.
The service performance and service life of engineering components can be influenced by the type, extent, and distribution of residual stresses.
Thomas: Modeling of casting, welding, and advanced solidification processes VIII, San Diego, CA, June 7-12, TMS, (1998), p. 795 [4] J.
Forum, Vols. 347-349 (2000) p. 223 [7] B.

Age-hardening of rheo-high pressure die cast Al-alloy 6066 TAUTE Carlien1,a *, MÖLLER Heinrich2, b 1Department of Materials Science and Metallurgical Engineering, University of Pretoria, Pretoria, 0001, South Africa 2Council for Scientific and Industrial Research (CSIR), Pretoria, 0001, South Africa aaurora247@hotmail.com, bhmoller@csir.co.za Keywords: rheo-high pressure die casting (R-HPDC), alloy 6066, age-hardening, solution heat treatment, Vickers Hardness.
Acknowledgements The Department of Science and Technology (DST) in South Africa is acknowledged for funding under the Advanced Metals Initiative Program.
Turkish Journal of Engineering and Environmental Sciences 31 (2006) 53-60
Materials Science Forum 794-796 (2014) 137-142

Kiminami2 1 Federal University of Campina Grande, Department of Materials Engineering, 58970-000 Campina Grande PB, Brazil, Phone: +55 83 310 1183, Fax: +55 83 310 1178 2 Federal University of São Carlos, Department of Materials Engineering, 13565-905 São Carlos SP, Brazil, Phone: +55 16 260 8244, Fax: +55 16 261 5404 Keywords: Ni-Zn ferrite, combustion reaction, synthesis routes, characterization.
Forum 416-418 (2003), p. 699-704. 13.
Patil, Advanced Mater.

The Effects of Specimen Geometry on the Accuracy of Tensile Testing of Metallic Superplastic Materials Fadi Abu-Farha1, a, Mohammed Nazzal2,b and Richard Curtis3,c 1 Department of Mechanical Engineering, Penn State Erie, Erie, PA 16510, USA 2 School of Technological Sciences, German Jordanian University, Amman, Jordan 3 King's College Dental Institute, Guy's Tower, King's College London, London, UK a fka10@psu.edu, bmohammad.nazzal@gju.edu.jo, crichard.curtis@kcl.ac.uk Keywords: Superplastic Materials, Tensile Testing, Specimen Geometry, Material Flow.
Hamilton: Materials Science Forum, Vols. 170-172 (1994), p. 627 [6] F.
Khraisheh: Journal of Advanced Engineering Materials, Vol. 9 (2007), p. 777 [8] Y.

David 1,i 1Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA 2Materials Science and Engineering, The University of Tennessee, Knoxville, TN 37996, USA 3 Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA 4Materials Science and Technology Division, Los Alamos National Laboratory, NM, USA awoowc@ornl.gov, bfengz@ornl.gov, c wangxl@ornl.gov, d dbrown@lanl.gov, eclausen@lanl.gov, f hubbardcr@ornl.gov, g hchoo@utk.edu, h liaw@utkux.utcc.utk.edu, idavidsa1@ornl.gov Keywords: Quasi-steady state, In-situ, Neutron diffraction, Transient strain, Aluminum alloys Abstract Neutron diffraction research has been limited to the "static" behavior of materials since the number of collected neutrons is insufficient to reach the adequate neutron fluxes in rapid changes of material state.
Introduction A number of thermo-mechanical processes have emerged recently and often results in superior mechanical properties of advanced materials [1].
However, the change of material states under the thermo-mechanical deformation has rarely been reported, though it is one of the most important areas in materials science and engineering.
Forum Vol. 524-525 (2006), p. 387 [7] H.S.