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Welo1,b 1Norwegian University of Science and Technology, Dept. of Engineering Design and Materials, Richard Birkelands vei 2b 7491 Trondheim Norway afredrik.wideroe@ntnu.no, btorgeir.welo@ntnu.no Keywords: Extrusion, friction, pressure, elevated temperatures Abstract.
· further studies using this test methodology will include testing of different surface topologies, disk materials, states of material and strain rates (deformation velocity).
Materials Park, OH: ASM International, 2000
Colligan, "Material Flow Behavior during Friction Stir Welding of Aluminum," Welding Journal, vol.
Altan, "New concepts in die design -- physical and computer modeling applications," Journal of Materials Processing Technology, vol. 98, pp. 212-223, 2000.

In order to produce semi-solid materials of the desired microstructure, a stirring process is applied during solidification of molten state.
Rheological material forming is a near-net-shape forming process which constitutes final parts by loading the part materials at a temperature between the liquidus and the solidus [1,2].
As previously stated, materials hardened by decreasing the temperature, flows less easily than materials in liquid state.
Kirwood, Semisolid metal processing, International Materials Review Vol. 39(5)(1994), 173-189
Bae, Numerical simulation of mold filling and deformation behavior in rheology forming process, International Journal of Mechanical Science Vol. 50(2008), 944-955 [5] H.H.

Material property.
But the MISES stress in the liner under operating pressure was 204.8MPa, greater than the 60% of the material yield limit.
Mantell, David Cohen, Reed McPeak: Composite Structures,Vol.52(2001), p. 499 [3] J.C.Velosa, J.P.Nunes, P.J.Antunes, J.F.Silva, A.T.Marques: Composite Science and Technology, Vol. 69(2009), p. 1348 [4] DOT-CFFC Standard, Carbon-Fiber Aluminum Cylinders(2007) [5] M.H.
Hassani: International Journal of Pressure Vessels and Piping, Vol.84 (2007), p.310 [6] J.
Chandrashekhara: International Journal of Hydrogen Energy, Vol.34(2009), p. 3425

The research samples were meticulously crafted using granular materials procured from the manufacturing facility.
It involves the assessment of the impact of thermal aging on the dielectric breakdown strength, a crucial dielectric parameter of the materials.
Throughout the aging process of XLPE materials, various chemical reactions, including oxidative cracking, take place within the materials, leading to crystallization cracking and the formation of numerous polar substances.
Bulletin of the Polish Academy of Sciences Technical Sciences. 69. 10.24425/bpasts.2021.136037
[21] Yasmina Sebbane, Ahmed Boubakeur, and Abdelouahab Mekhaldi, Correlations between Physico-Chemical Properties and Dielectric Behavior of Thermally aged XLPE Cables Insulation, ENP Engineering Science Journal, Vol. 2, No. 1, July, 2022, DOI: 10.53907/enpesj.v2i1.102 [22] Rao, Burjupati & kp, Meena & Tirumurthy, Raja. (2015).

From teaching methods the point of view, the existing Java language teaching, curriculum and teaching materials are basically in accordance with the order of chapters teaching, but because the object-oriented Java language features, and project development needs Java language, making the Java language as an organic whole, so the Java language artificially divided into chapters and knowledge points, resulting in students often "saw wood for the trees", even if each knowledge point are a good school and cannot complete a simple project development.
Journal of Science of Teachers' College and University, 2005, 25 (2): 79 - 80 [4] Lian Shibin, Zhu Xiaodong.
Briefly Discussion on Java Introduction, Reform – Promote the Ability Cultivation Through Teaching Practice, Journal of Beijing Agricultural College, 2007.

Materials and Methods Bacterium and medium.
Glucose was determined using a SBA-40 C immobilized enzyme biosensor (Institute of Biology, Shandong Academy of Sciences, China).
Bratislava Medical Journal-Bratislavske Lekarske Listy.
Journal of Biotechnology.

The material is isotropic.
The material is Q345C, [σ]=230MPa, Young’s modulus E=206GPa, Poisson’s ratio μ=0.3, and density ρ=7800/m3.
Hydro-Science and Engineering, 1 (2006), p.66
Journal of Vibration, Measurement & Diagnosis, 28, 3 (2008), p.241
Journal of Hydroelectric Engineering, 23, 3(2004), p.116.

According to the equilibrium condition of forces, they are        ⋅ + − =− + = Q f f NN f Q FN αα αα αα sin cos cos sin sin cos 12 (6) From Eqs (4), (5) and (6) 2 1 f f rT +≥ ρ (7) where rTmin is the minimum roller radius such that the roller makes rolling movement in the actuating travel; ρ is the friction circle radius of revolute pair of the roller and follower lever (when the material, structure and dimension of the revolute pair are fixed, ρ is a constant value [4-6]); f is the rolling friction coefficient between the roller and the cam contour (when the material and surface quality of the roller and cam contour are fixed, f is a constant value [4-6]).
[2] Zou HJ, Dong SY: Modern Design of Cam Mechanisms, Shanghai: Shanghai Jiaotong University Press, 1991 [3] Wu TX: Journal of HeFei University of Technology (Natural Science), (2003)No.(5): p. 963 [4] Zheng WW, Wu KJ: Mechanisms and Mechanical Theory, Higher Education Press, (1997)
[5] Qian ZL: Journal of Machine Design, 2003 (4), p. 23 [6] Shen YS Mechanisms and Mechanical Theory, Beijing: Tsinghua University Press, (1999)

Machine Vision System for Inspecting Surgical Blades Shuyi WANG a , Jie TAN b, Xunchao YIN c, Huifang WANG d School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China awangshuyi@usst.edu.cn, b tanjie860110@163.com, cian10@163.com, d fengerimissyou@163.com Keywords: Machine vision, Surgical blades, Measurement, Shape matching, Sub-pixel, Edge detection Abstract.
The gauge block with the nominal size of 50mm is used as calibration reference materials, the image of the gauge block is necessary to occupy a large area, the number of pixels occupied by the block in the image is calculated through the software, i.e, the pixel size of the block, L.
Kopac: International Journal of Machine Tool & Manufacture, (2005) No.45, pp.1023-1030
Deriche: International Journal of Computer Vision, Vol. 1 (1987), pp.167-187

Acknowledgements This work was financially supported in the framework of the state task of the Ministry of Education and Science of Russian Federation for 2014÷2016 (Topic number: 2031).
Mesyats, Microexplosions on a cathode aroused by plasma-metal interaction, Journal of Nuclear Materials, 1984
Matyushenko, Reprocessing of spent nuclear fuel and radioactive waste management, Journal of Siberian Federal University, Engineering and Technologies, 2013.