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This volume of the periodical includes papers which describe:
- application of biomimetic approach in design of modern robots;
- applied research in the biomechanics of human
- utilization of modern materials in biomedicine;
- application of different techniques of modeling, measurement and modern IT technologies in the biomedical practice.

   We hope that this periodical will be useful for many researchers and engineers from different branches of engineering sciences.

The quasi-experimental design is utilized for the learning assessment, where the experimental group applies MMBCLS, while the control group uses general instruction for the teaching materials.
Aiming at teaching media, a lot of teachers do not use interesting digital materials, as such digital games do not conform to their demands [11].
Association for the Advancement of Computing in Education Journal,13 (3), 233–250
School Science and Mathematics, 101(2), 91-101
International Journal of Computing and Information Sciences, 5(2), 63–73.

Furthermore, the frictional heat causes the materials to deform plastically [2].
Shrivastava, “Ductile fracture based joint formation mechanism during friction stir welding,” International Journal of Mechanical Sciences, 168, Nov. 2019
Dhindaw, “Numerical simulation of temperature distribution using finite difference equations and estimation of the grain size during friction stir processing,” Materials Science and Engineering A, 543, 231-242, Mar. 2012
Rynkovskaya, “Development of a Finite Element Model for Thermal Analysis of Friction Stir Welding (FSW),” IOP Conference Series: Materials Science and Engineering, 495, 2019
Bauri, “Effect of friction stir processing on microstructure and mechanical properties of aluminium,” Materials Science and Engineering: A, 539, 85-92, Jan. 2012

The inelastic strain tensor can be factorized into four parts, i.e., , the classic plastic strain which satisfies J2 theory and steel plates are isotropic hardening materials, , the thermal expansion strain, , the transformation dilatational strain and , the transformation plasticity strain tensor.
The above material model is implemented into the commercial finite element package ABAQUS Standard and the elastic modulus of materials are listed in the table1.
Table1 Elastic modulus of materials /℃ E/MPa 20 205000 100 204000 500 173000 600 161000 700 150000 800 140000 900 125000 Model and Results Fig.1 shows a schematic drawing of the steel plate during the cooling process.
Acknowledgment The financial support of the Österreichischer Akademischer Austauschdienst in the framework of the exchange program with Kunming University of Science and Technology is gratefully acknowledged.
Mayr: Journal of Heat Treatment and Materials Vol. 54 (1999), p. 365

Preparation and characterization of rare earth composite catalytic materials for conversion of exhaust from natural gas automobiles YanKun Yuan, Gang Xue *, Saifei Wang and Xueliang Zhang Institute of Power Source and Ecomaterials Science, Hebei University of Technology, Tianjin 300130, China *xuegang@hebut.edu.cn Keywords: composite materials, rare earth, catalysis, natural gas Abstract.
In this paper, preparing a series of rare-earth composite catalytic materials that contains mixture of La0.9Sr0.1Co0.5Mn0.5O3 and Ce0.7Zr0.3O2 along sol-gel method, studying the structure and catalytic properties of the composite catalytic materials. 2.
Fig.1 XRD patterns obtained for rare earth composite catalytic materials LZ1, LZ2 and LZ3 Fig.2 TEM photographs of rare earth composite catalytic materials (a) LZ1, (b) LZ2 and (c) LZ3 3.3 Specific surface area of catalytic materials The specific surface area test of rare-earth composite catalytic materials is shown in Table 2.
Fan: Journal of the Chinese rare earth society, 22(4):522~526 (2004) [8] B.
Zhang: Journal of the Chinese rare earth society, 21:98-99. (2003) [9] P.

Simple Fabrication of PEG Modified W18O49 for Enhanced Adsorption Performance Towards Methylene Blue Haiyang Fu1,a, Xuejiao Li1,b*, Wei Sun1, Dongyue Liu1, Xiaofei Gao1, Limin Dong1,c* and Haitao Fu2 1College of Materials Science and Engineering, Harbin University of Science and Technology, Harbin, China 2College of Materials Science and Engineering, Chang’an University, Xi’an, China afuhaiyang1002@163.com, blixuejiao@hrbust.edu.cn (Corresponding author), cdonglimin@hrbust.edu.cn (Corresponding author) Keywords: Solvothermal; PEG; W18O49 nanoparticles; Methylene blue.
And the comparative experiments with other absorbent materials, such as artificial zeolite and activated carbon were also conducted.
Experimental Section Chemicals and Materials.
Duta, Tungsten Oxide-Fly Ash Oxide Composites in Adsorption and Photocatalysis, Journal of Hazardous Materials. 289 (2015) 244-256
Kalantar-Zadeh, Nanostructured Tungsten Oxide-Properties, Synthesis, and Applications, Advanced Functional Materials. 21 (2011) 2175-2196

Materials and methods 2.1 Materials Potato starch used to make films was obtained from Sinopharm Chemical Reagent Co., Ltd.
Meat Science 74, 131-142
Philadelphia: American Society for Testing and Materials
Journal of Food Science 65 (1), 1166-1169
American Society for Testing and Materials, Philadelphia.

The larger the elastic modulus is, the less the materials are prone to fatigue damage.
It is apparent that freeze-thaw cycles do not exert much influence on the properties of FRP materials.
The mechanical properties of resin materials suffer great influence under conditions of wet-dry and ultraviolet.
Fiber surface treatment can improve the interlaminar shear strength of composite materials.
,in:Composites for construction. 2003,2 [36] Ren Huitao,Yao Qianfeng,in:Journal of Building Materials, 2005, 8(5):521-525(in Chinese)

Though some advanced structural strengthening techniques have been widely adopted, the corresponding new materials leg behind.
Experiment Experimental materials and instruments.
Experimental materials include E-51 bisphenol A epoxy resin, curing agent T31, nano filler SiO2，with average grain diameter 15nm.
New Building Materials, 2010 (3) : 71-74 [6] Li Shaoying, Han Xiaozu, Peng Xinsheng, et al.J.Science and Engineering of Polymer Materials, 1998 (9) : 5-7 [7] Song Ning, Le Taorui, Wang Guliang, et al.
Journal of Functional Polymer, 2004 (6) : 2-6.

Comparison of creep behavior of the web and the flange materials of W4×13.
Verification of material creep models against the web materials of W4×13 and W30×99.
The support of the National Science Foundation and of the former NSF Program Director M.P.
The authors also gratefully acknowledge Gerdau-Ameristeel for donating materials for this research.
Harmathy, A Comprehensive Creep Model: Journal of Basic Engineering, Trans.