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Py-GC-MS Analysis on Biomedical Materials from Extractives of Moso bamboo for Biomedical Engineering MA Qing-zhia, WU Feng-juan, ZHANG Dang-quan, PENG Wan-xi Central South University of Forestry and Technology, City Changsha, P.R.
China ae-mail: pengwanxi@163.com Key words: Py-GC-MS; Biomedical materials; Extractives; Moso bamboo; Biomedical Engineering Abstract.
Introduction Moso bamboo (Phyllostachys pubescens), which is a superior resources, is often used as the raw materials of furniture, doors, flooring, windows and beams, and so on[1].
Materials and Methods Materials.
Journal of Nanjing Forestry Unversity, Vol.26 A2(2002):7-11

There are several inventory materials that are being tested to be utilized as track ballast material.
Specification of Materials.
The gradation of TDM is impacted by the specific gravity of the materials used.
Yaacob, “Durability performance of concrete debris and bottom ash as an alternative track ballast material,” IOP Conference Series: Earth and Environmental Science, vol. 682, no. 1, p. 012053, 2021
Ganiron, “Recycling concrete debris from construction and demolition waste,” International Journal of Advanced Science and Technology, vol. 77, pp. 7–24, 2015

Geotechnical material is one of the most widely used porous materials.
In fact, the constitutive equation of the geotechnical materials especially under the unsaturated condition has always been the hot spot.
Acknowledgments We would like to show gratitude to Schrefler B A, Loris Luison for technical advice and program suggestions, and the support of National Natural Science Foundation of China (No. 50879049).
Journal of Applied Physics, 1941, 12(2): 155−164
International Journal for Numerical Methods in Fluids, 1995, (20): 969～987

In order to guide the healthy and orderly development of energy saving wall material, all kinds of wall material are analyzed comprehensively basing on the various possible indexes which affect the performance of wall material.
For a long time, solid clay brick still prevails in wall materials in china.
The evaluation of wall material The selecting evaluation object is the exterior wall material which has some production scale.
Building Science, 2011(04): 80～83
Journal of Xi an University of Architecture & Technology (Natural Science Edition), 2009(1): 126～130.

One such innovative approach involves incorporating these waste materials into construction materials, primarily concrete.
Advances in Materials Science and Engineering,(2018), p. 1-8
Materials, 14(9), (2021), p.2337
Construction Materials, 1,(2021), p. 39-62
Advances in Material Science and Engineering, (2021), p. 265-272

Piezoelectric Generators in the Energy Harvesting Systems GRZYBEK Dariusz AGH University of Science and Technology, Faculty of Mechanical Engineering and Robotics, Department of Process Control, 30 Mickiewicza Av., 30-059 Krakow, Poland dariusz.grzybek@agh.edu.pl Keywords: piezoelectric materials, piezoelectric generator, energy harvesting, wireless monitoring Abstract.
Sodano, A review of power harvesting using piezoelectric materials (2003–2006), Smart Materials and Structures. 16(2007) R1-R21
Purekar, Comparison of monolithic and composite piezoelectric material–based energy harvesting devices, Journal of Intelligent Material Systems and Structures. 25(2014).1825-1837
Roundy, On the Effectiveness of Vibration-based Energy Harvesting, Journal of Intelligent Material Systems and Structures. 16(2005) 809-823
Richard, Materials, structures and power interfaces for efficient piezoelectric energy harvesting, Journal of Electroceramics. 22(2009) 171-179

Alternatively enzymes can be immobilized onto many types of materials to overcome this problem.
Materials and Methods Materials.
Sayong Clay Material for Biocatalyst Immobilization, Materials Science Forum. vol. 737(2013), pp. 145-152
Adefila, Immobilization of Cassava Linamarase on Kankara Kaolinite Clay, Journal of Natural Sciences Research, vol. 2(2012), pp. 55-62
Azhar, Calcium Alginate: A Support Material for Immobilization of Proteases from Newly Isolated Strain of Bacillus subtilis KIBGE-HAS, World Applied Sciences Journal, vol. 7(2009), pp. 1281-1286

A measurement method for loss factor of viscoelastic material was researched.
Introduction Transverse wave and longitudinal wave is a kind of elastic acoustic wave in viscoelastic material and elastic material.
Elastic acoustic wave can be excited when acoustic wave incidents to the surface of viscoelastic material or elastic material at a certain angle [1-3].
Acknowledgements This work is supported by science and technology on underwater acoustic laboratory under grant 9140C200105120C2001.
References [1] Yexin Xing, Guowei Luo: International Journal of Digital Content Technology and its Applications.

New materials of bearings create new problems of bearing noise generation, so research of noise and vibration generation mechanism in necessary.
Modern materials in bearings create some specific problems with noise intensity and this paper touches some aspects of noise generation in steel and ceramic bearings.
Tribology Letters, Springer Science+Business Media, LLC (2009) [3] M.
Journal of Acoustics (2002) [8] K.
Tribology Letters, Springer Science+Business Media, LLC (2006) [9] J.

Fiber Concrete on the Basis of Composite Binder and Technogenic Raw Materials S.V.
Lemm, Fiber-Reinforced Concrete: Principles, Properties, Developments and Applications (Building Materials Science), William Andrew; illustrated edition Feb. (1990) 194
Durachenko, High-Strength Fiber-Reinforced Concrete Containing Technogenic Raw Materials and Composite Binders with Use of Nano-dispersed Powder, Research Journal of Applied Sciences. 9 (2014) 1153 – 1157
Durachenko, Fine-Grain concrete reinforced by polypropylene fiber, Research Journal of Applied Sciences. 10 (10) (2015) 624 – 628
Durachenko, The Development of textile fine-grained fiber concrete using technogenic raw materials, Research Journal of Applied Sciences. 10 (10) (2015) 701 – 706