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AE is a phenomenon that the energy rapidly releasing from material inside generates a transient elastic wave.
Acknowledgements This project is supported by National Nature Science Foundation of China (Grant No. 51075023) and Beijing Municipal Training Program for Excellent Talents (Grant No.2010D009016000003).
Journal of Engineering Mechanics, Vol.129 (2003), p.861-875

Development of analysis system for the process of piston's production Xiaobo Wang1,a, Xiaomei Song1,b 1College of Electromechanical Engineering, Qingdao University of Science & Technology, Qingdao, Shandong, 266061, China aclzs@163.com, bsxm0711@163.com Keywords: SPC, Piston, Abnormal Pattern.
Possible causes for this abnormity include: Batch change of in-coming material or parts; change in operator or inspector; change in method of operation; fixture or tool breakage [4].
Lee: The International Journal of Advanced Manufacturing Technology.

Not to mention that selective demolition has the potential to assure a higher quality of the recycled materials as by separating the materials into flows (e.g., hazardous materials such as asbestos and PCBs systems, pipes, insulating materials, wood, plastics, brick, concrete) it reduces the possibility of contamination of the aggregates [4].
The new materials are also renewable and non-toxic so that they can be introduced again into the nature cycles of the biosphere acting as ‘nutrients’ to grow new materials [21].
More in detail, green building materials are defined by [25] as: “Raw and processed nature-based materials used in the construction of the built environment.
The quality of certified materials and products Figure 2 evidences the composition of the total sample of our survey that consists of 131 certified materials and products.
A literature review, Journal of Cleaner Production 178 (2018) 618-643

Energy consumption in buildings are about 25% in the process of using, with construction related energy consumption (such as steel, cement, glass and other building materials industry energy consumption) totally being about 46.7%.
In 1953 in On Psychological Thing he flatly declared: "the concept of pure feeling materials is an extremely empty abstract".
[4] Yu Xixian, Reflecton on traditional Chinese geography, Journal of Peking University (philosophy and social science edition) Vol. 6 (1999). in Chinese
[7] Yifeng Wen, The Fundamental Conception and Theory of Natural Philosophy: A Mega-theory of Green Building and Eco-homeland, Applied Mechanics and Materials Vols. 71-78(2011) pp. 4701-4709
[10] Yifeng Wen, Research on Framework of Urban-Rural Spatial Structure and Morphology Based on Cultural Theory, Applied Mechanics and Materials Vols. 71-78(2011) pp. 4689-4700.

Wood is one of the most common materials in this type of constructs due to the great availability of this material in the territory during Brazil’s colonization period.
According to the authors [9] elastic stiffness it is one of the most important determinations when using structural reinforcements with distinct materials.
The approach of this property is consistent because it is a sample composed of distinct materials (timber containing the structural reinforcement of epoxy resin).
Construction and Building Materials. 40 (2013) 197-206
Callister, Materials Science and Engineering: An Introduction. 5.ed.

One of the promising semiconductor materials which has been researched intensively is zinc oxide (ZnO).
Science Officer) and Mr.
Kerr: Journal of Solid State Chemistry Vol. 180 (2007), p. 988
Yin: Materials Letters Vol. 63 (2009), p. 275-278
Guo: Materials Letters Vol. 62 (2008), p.3101.

Co-digestion results increasing of methane yields due to the positive synergistic effects of the mixed materials with complementary characteristics and the supply of missing nutrients by the co-substrate [4,5].
Materials and Methods Experimental setup.
Materials collection and experimental procedure.
The main chemical properties of these materials were shown in Table1.
Physical and chemical properties of raw materials Material TS VS TOC TN C/N pH NOW 16.17% 15..59% 42.93% 0.83% 51.4 4.3 SM 26.89% 20.48% 36.74% 1.85% 19.8 6.1 WAS 25.65% 11.42% 22.43% 3.76% 6 7.9 Inoculum 8.02% 5.58% ______ ______ _____ 7.5 Nine feedstocks which were made by adding a percentage of distilled water to NOW, co-substrates and inoculum were used to load R1-R9.

Such materials demonstrate high rigidity, superb machinability, self-restored and have high chemical, oxidation and corrosion resistance.
Materials and Methods CrAlC films were deposited on tool steel and Si plates by arc sputtering technique using the UVNIPA-1-001 machine.
The mechanical characteristics (hardness and elastic modulus) of CrAlC were measured by nanoindentation technique (NanoTest 600, Micro Materials Ltd, UK) using Berkovich diamond pyramid (indenter).
In addition to monolayer films, multilayer coatings are technologically promising materials for tribological applications.
Hultman, The Mn+1AXn phases: Materials science and thin-film processing, Thin Solid Films 518 (2010) 1851–1878

Introduction As a kind of field activated EAPs, dielectric EAPs are actually hyperelastic insulating materials, so the EAP film, sandwiched between compliant electrodes on both sides, is basically a deformable capacitor [1].
Joseph, High-Speed Electrically Actuated Elastomers with Strain Greater Than 100%, SCIENCE 287 (2000) 836-839
Sommer-Larsen, Dielectric Elastomers as Electromechanical Transducers Fundamentals, Materials, Devices, Models and Applications of an Emerging Electroactive Polymer Technology, Elsevier Press, Amsterdam, the Netherlands, 2008
Wissler, An arm wrestling robot driven by dielectric elastomer actuators, SMART MATERIALS AND STRUCTURES 16 (2007) S306–S317
Zhao, Energy conversion analysis and performance research on a cone-type dielectric electroactive polymer generator, SMART MATERIALS AND STRUCTURES 20 (2011) 115022

Experiments 2.1 Experimental material and apparatus The insulation and jacketing material of the cable specimen chosen for this test program was polyvinylchloride (PVC), a common material in many cable projects [13].
Fire Behaviour Of Building Materials And Building Components - Part 12: Circuit Integrity Maintenance Of Electric Cable Systems; Requirements And Testing
Fire fighting – Fire performance of building materials and products – Fire resistance of building materials.
Fire Science and Technology 29 (2010) 473-477,
Journal of Fire Sciences 25 (2007) 447-466.