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Preparation of Silver Doped PMN-PZT Ceramics and Their Energy and Materials Engineering Applications J.
Zheng 1,a 1Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China a mmzheng@polyu.edu.hk Keywords: Ferroelectrics.
The ceramics are found to be very promising in energy conversion and materials engineering applications.
In spite of encouraging progresses on understanding the mechanisms of electro-caloric effect, whether the electric-field driven first-order ferroelectric transition plays key role in the EC effect is still under debates.
The free energy density of ferroelectric materials can be written as G = (A(T-Tc)/2)P2 + ( B/4)P4 + (C/6)P6 + D(ÑP)2 + P×E , (1) where P is the polarization; Tc is the Curie temperature; A,B, C and D are coefficients; E is an applied electric filed.

Moreover, SF is one of considerable material that use in biomedical application because of many studies proved the biocompatibility of the SF and can be used in tissue engineering [2] [3].
Materials and Methods Materials and Reagents.
Direct contact test is suitable for low density materials.
Hofmann, Silk fibroin as biomaterial for bone tissue engineering, Acta.
Damrongrungruang, Porous silk fibroin/alpha tricalcium phosphate composite scaffolds for bone tissue engineering: A preliminary study, Key Engineering Materials. 695 (2016) 164-169

Since welded constructions are widely used in engineering, a certain flaws in welded joints may occur either in process of welding or in exploitation period.
Such difference in materials usually results in yield strength difference between materials, represented with mismatch factor, and it is commonly present in welds where high strength low-alloyed steels were welded.
Weld centre cracks, Engineering Fracture Mechanics (2001), 68, p. 163–182
Schwalbe: Compendium of yield load solutions for strength mis-matched DE (T), SE (B) and C (T) specimens, Engineering Fracture Mechanics, (2001), 68, p. 1137–1151
Kim: Experimental J estimation equations for single-edge-cracked bars in four-point bend: homogeneous and bi-material specimens, Engineering Fracture Mechanics, (2002), 69, p. 793–811

Offshore Engineering Rules: Wave and Turbine Forces in TCEC Systems Construction a floating structure of oil and gas platform generally follows the offshore engineering rules that have been established internationally.
Offshore engineering rules for oil and gas industry provide basis in deriving rules or guidelines for engineering design of the TCEC systems.
Along with this engineering analysis, cost of producingthe configuration has to be effective.
The materials for the construction of floating structure of TCEC should be suitable for the expected environmental conditions for a set of design life time.
Materials unsuitable for a marine environment may be used if protected by adequate coating or cladding.

Within Engineering, Civil Engineering comprised the largest portion (~65%) suggesting the material is most relevant to sustainable building/infrastructure development.
Environmental Engineering (~10%) related to life cycle analysis and ecological performance of the material, with the rest of the total made up of examples of Mechanical Engineering and Geotechnical Engineering, with a focus on rheology, flow behavior and soil-structure interaction.
This interdisciplinary focus highlights the relevance of SCEC across fields such as materials science, engineering, and sustainable design.
The research is predominantly concentrated in engineering, which accounts for over 50% of publications, followed by materials science and environmental science.
The interdisciplinary nature of SCEC research is evident, with engineering, materials science, and environmental science leading the way.

While common-used key-frame extraction methods are referred to section 2, here we introduce the image entropy into key-frame extraction [8].
Simulation experiments and analysis Considering extensiveness and generality of video materials, we select four types of video that are animation, advertisement, news and music video.
Therefore, on the whole, our improved key-frame extraction method could fulfill the task of video shot detection and key-frame extraction better.
[6] Gunal, E.S, Canbek, S, Adar, N: International Conference on Electrical and Electronics Engineering Vol. 2 (2009), p. 125
[7] Tapu, R, Zaharia, T, Preteux, F: 2010 IEEE 26th Convention of Electrical and Electronics Engineers in Israel (2010), p.000919

Introduction With the progress of the materials science technology, engineering ceramics have become a kind of advanced material with many merits and been widely applied in the fields of aerospace, science and technology of national defence, computer engineering and so on [1,2].
On the other hand, the mechanical properties of workpiece materials also have important influences on the surface quality [7].
In order to study the surface roughness characteristics of different kinds of engineering ceramics and clarify the effects of lapping parameters on surface roughness, three kinds of engineering ceramics such as Al2O3, ZrO2 and ZTA were chosen as experiment materials, and the contrast experiments of high-speed lapping with and without ultrasonic assistance were carried out in this paper.
The properties of test materials are listed in Table2.
Niihara: Nanostructured Materials.

Study on Key Technologies of Handheld High Velocity Arc Machining Equipment TANG Xiujian1,a, Liu Qian2,b, ZHOU Zeyun3,c, Ge Hui4,d and WANG Long1,e 1Science and Technology on Remanufacturing Laboratory, Academy of Armored Force Engineering, Beijing 100072, China 2Key Laboratory for Surface Engineering of PLA, Academy of Armored Forces Engineering, Beijing 100072, China 3Department of Science Research, Academy of Armored Force Engineering, Beijing 100072, China 4PLA Military Representative Office in the 559th Factory, Wuxi 214035, China atangxiujian@hotmail.com, bllttqq@sina.com, czzyzgy@tom.com, d271036938@qq.com, ewaloxs@163.com Keywords: Handheld high velocity arc, Discharge gap, Remanufacture, Surface fatigue layer Abstract.
Remanufacture Engineering and Its Development in China.
China Surface Engineering [J], 2010,Vol.23(2):1-6
Machining Technologies and Tendency for Superhard Materials.
Superhard Material Engineering [J], 2007,Vol19(3):42-45。

Designers are still seeking novel, smart and advanced materials.
A metamaterial could be fabricated by the 3D-printer device, either from a single material or bi-materials, or multi-materials.
Therefore, metamaterials could be a novel topic in tissue engineering.
Design Keys The design process of a metamaterial structure is a key for engineers, which could be handled by topology optimization.
One other application of bi-material or multi-material metamaterials (4M) could be in tissue engineering.

Based on the function of key parameters of cushioning package acquired, the reversed cushioning package design method is carried out.
Introduction The paper-based materials have the advantages of low price, no pollution, easy to process, and wide operating range.
Stress - Energy measurement method to obtain curve Principle: the purpose of using the method of stress – energy is concluded that the curve of cushioning materials.
Applied Mechanics and Materials, Vols.288,256-261 [2] G.M.Zhang, Y.L.Hu.
Journal of cushioning performance of honeycomb paperboard packaging engineering, 2008, 29 (10) : 77-79 [3] X.Y.Wang, H.N.Wang.