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A Study on Tactile Friction and Wear -Frictional Wears Characteristics of Human Fingers on Various Soft Materials- Yoshihito ODA, Junji SUGISHITA, Hatsuhiko USAMI, and Tomokazu HATTORI Department of Materials Science Engineering, Meijo University, 1-501 Shiogamaguchi, Tenpaku, Nagoya468-8502, Japan Key words: Friction coefficient, Specific wear rate, finger, stratum corneum, Soft metal, Wood.
The tactile wear is an abrasion phenomenon of solid material by the human skin, and the friction coefficient is several times higher than the usual values obtained among engineering materials[3,11].
We also carried out the similar experiment on several wood materials in which the specific gravity differs.
Therefore, it is understandable to have a small friction coefficient as weak materials such as paulownia and balsawood.
[8] K.Nakajima, Y.Imada, H.Narasaka, N.Mohri and M.Saito: Evaluation of Skin Surface Associated with Morphology and Friction Coefficient, Journal of the Surface Science Society of Japan, (in Japanese), 5 (1984), p.28-34

It has a wide application prospect in analysis and researches of materials.
Materials for terahertz science and technology [J].
Journal of Hunan University of Science ＆ Technology (Natural Science Edition), 2012, 1: 107-111
Journal of Central South University (Science and Technology), 2012, 43(6): 2198-2201
Journal of Central South University (Science and Technology), 2012, 43(8): 3080 -3084.

Higher temperatures always encourages crystal growth rates as more energy is available to the materials for phase formation and crystal growth.
Lin: Journal of Sol-Gel Science and Technology Vol. 6, p. 277-281 [4] L.
Zhang: Materials Research Bulletin Vol. 35, p. 1653-1659 [8] W.
Li: Materials Letters Vol. 61, p. 3218-3220 [9] K.
Rao: Materials Research Bulletin Vol. 40, p. 831-839

Experiment Experiment Materials.
[2] Jianhua Zhu: Journal of Xuzhou Institute of Technology(Natural Sciences Edition) Vol. 27 (2012), p. 5(in Chinese)
[4] Wenchang Zhuang and Yuxiao Wang : Journal of Xuzhou Institute of Technology(Natural Sciences Edition) Vol. 27 (2012), p. 44(in Chinese)
[5] Qingyin Wu, Xia Tong and Xuefei Wu : Journal of Xuzhou Institute of Technology(Natural Sciences Edition) Vol. 26 (2012), p. 1(in Chinese)
[6] Zhiyong Liu, Yan Li and Yong Li : Journal of Xuzhou Institute of Technology(Natural Sciences Edition) Vol. 26 (2012), p. 9(in Chinese).

Risk identification of raw materials and accessories of liquor Liquor could be divided into grain liquor and liquor dry potatoes according to different raw materials.
The farmer’s soil of raw materials and accessories should be numbered.
Liquor-Making Science & Technology .In Chinese.
British Food Journal.
Liquor-Making Science & Technology.In Chinese.

Khan, Evaluation of the effect of infill pattern on mechanical stregnth of additively manufactured specimen, in: Materials Science Forum, Trans Tech Publ, 2017: pp. 128–132
Boejang, Analysis on fused deposition modelling performance, Journal of Zhejiang University-Science A 11 (2010) 972–977
Tuck, Effect of the build orientation on the mechanical properties and fracture modes of SLM Ti–6Al–4V, Materials Science and Engineering: A 616 (2014) 1–11
Elahinia, Anisotropic tensile and actuation properties of NiTi fabricated with selective laser melting, Materials Science and Engineering: A 724 (2018) 220–230
Singh, Investigation of the effect of built orientation on mechanical properties and total cost of FDM parts, Procedia Materials Science 6 (2014) 1625–1630

Thermal storage and release properties of aluminum foam - paraffin composite phase change materials LUO Xiaoxu1,a, *ZUO Xiaoqing2,b, ZHAO Mingwei2,c 1Faculty of Foreign Languages & Cultures, Kunming University of Science and Technology, Kunming 650093, P.R.China 2School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, P.R.China alxxlxx01@yahoo.com, bzxqdzhhm@hotmail.com, czhaoming860515@163.com (*corresponding author) Keywords: aluminum foam; paraffin; APCPCM; thermal storage and release properties Abstract.
Based on the thermal storage capability of paraffin and the thermal conductivity of aluminum foam, attempts [5-8] of getting new materials, such as Aluminum foam–Paraffin Composite Phase Change Materials (APCPCMs) with good thermal properties by filling paraffin into the aluminum foam, have been reported recently.
Zhang, J.Z.Yu: Journal of Refrigeration Vol.28(2007), p.13-17 [7] K.
Shaikh: JOURNAL of Applied Physics Vol.102(2007), p.1-6 [8] T.
Mortensen: Materials Science and Engineering A （462）(2007), p.68-75 [11] JAGJIWANRAM, R.

Experimental Procedures Materials Used.
(in Japanese) [3] Hirose, Current Trends and Issues of Dissimilar Materials Joining, Journal of the Japan Welding Society, 87-1 (2018) 5-10.
Kishi, Research and Development of Innovative Materials and Multi-Materials, Journal of the Japanese Society for Strength and Fracture of Materials, 55, Special Issue (2022) 3-12.
Serizawa, Galvanic Corrosion and its Reliability Evaluation in Joining Dissimilar Materials, Journal of the Japanese Society for Strength and Fracture of Materials, 55, Special Issue (2022) 19-26.
Ohashi, Dissimilar Materials Joining by FSSW, Journal of the Japan Welding Society, 87-1 (2018) 28-32.

The measurement of the pH of various materials is provided.
Table 1: Used materials.
Students are informed about used materials.
Kozma, The material features of multiple representations and their cognitive and social affordances for science understanding, Learning and Instruction. 2 (2003) 205-226.
Information on: http://www.sciencedirect.com/science/article/pii/S095947520200021X?

Malec „Ultrafine grained strip of CuCr0,6 alloy prepared by CRCS metod” ” Journal of Achievements in Materials and Manufacturing Engineering vol 33 issue 2 April 2009 s166-172 [9] J.
Malec „Microstructure evolution in CRCS processed strips of CuCr0,6 alloy” Journal of Achievements in Materials and Manufacturing Engineering vol 38 issue 2 February 2010 s195-202 [11] Y.
Krishnaiah, Uday Chakkingal, Hyoung Seop Kim Severe plastic deformation and strain localization in groove pressing Computational Materials Science 43 (2008) 641–645 [14] A.
Rafizadeh On the evolution of flow stress during constrained groove pressing of pure copper sheet Computational Materials Science 45 (2009) 855–859 [22] E.
Venugopal Applicability of the groove pressing technique for grainrefinement in commercial purity copper Materials Science and Engineering A 410–411 (2005) 337–340 [25] M.