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Research on Biological Performance of Partially Oxidized Calcium Alginate Gel Ping Zhanga, Lingbin Lu, Haifeng Yang and Yang Caob* Key Laboratory of Ministry of Education for Application Technology of Chemical Materials in Hainan Superior Resources, Key Study Center of the National Ministry of Education for Tropical Resources Utilization, College of Materials and Chemical Engineering,Hainan University, Haikou 570228,PR China a282440854@qq.com, bcaowanghui@yahoo.com.cn Keywords: Na-alginate ;Ca-alginate ; Potassium permanganate; Oxidation; Degradation Abstract.
Fig.1 The "egg box" model of Ca-alginate Materials and methods Materials.Na-alginate with high guluronate content 79%was purchased from Sinopharm Chemical Reagent Co,Ltd.Potassium permanganate(KMnO4), sulfate acid (H2SO4),hydroxylamine,hydroch- loride, calciumsulfate(CaSO4), glucolacto（GDL）and calciumcarbonate(CaCO3) were purchased from Guangzhou chemical reagent factory.All chemical reagents were of analytical grade.
Traditionally, swelling properties of materials are related to its hydrophilic and hydrophobic components ratio.
Biomedical Materials Res,Vol.54,76-86(2001) [2] Braccini I,Perez S.
[11] Lingbin Lu,Ping Zhang, Journal of Applied Polymer Science, 113,3585–3589(2009) [12] Bouhadir KH, Alsberg E, Mooney DJ.

New methods of EDC and 3DMST fractal analysis in the examination of biomaterial surface fractures Sebastian Stach University of Silesia, Faculty of Computer Science and Materials Science, ul.
The fracture surface of a material coming from a three-point static bending test was subjected to examination.
The fractal dimension can be determined from the perimeter P to area A ratio for individual islands plotted, like in the case of the previous methods, on a double logarithmic graph, in accordance with dependence (6): (6) Determination of the fractal dimension by means of this method has been successfully applied for fracture surfaces of ductile and brittle metal materials.
International Journal of Solids and Structures Vol. 36 (1999), p. 3073-3084 [4] C.
Mu: Fractal dimension measured with perimeter-area relation and toughness of materials.

Introduction Structural epoxy adhesives are commonly used to join materials placed in load bearing applications.
Adhesive bonding has many advantages over conventional joining techniques such as the elimination of stress concentrations, improved rigidity and the possibility of joining dissimilar materials.
Experimental Materials and Procedure Two experimental test methods were employed to examine the adhesive joint fracture behaviour of a nano-toughened epoxy adhesive.
Basic mechanical properties of materials used.
S. (1989) 'Micromechanics of Fracture in Structural Adhesive Bonds', The Journal ofAdhesion, 28:2, 103 – 114 [2] Sultan, J.

Investigation on Hydration Characteristics of Zinc-doped Portland Cement Pastes Xiangguo Lia, Xiaobo Yin, Baoguo Ma, Bei Wu, Quanbin Chen and Yang Lv Key Laboratory for Silicate Materials Science and Engineering of Ministry of Education, Wuhan University of Technology, Wuhan 430070, Hubei, China alxggroup@163.com Keywords: Zinc; Cement Paste; Hydration Heat; Retardation Abstract.
Introduction High-performance concrete (HPC) is a new type of concrete materials developed in the last decade.
In order to satisfy workability and durability, save resources and lower cost, supplementary cementing materials (SCM) and chemical admixtures are incorporated into concrete.
Experimental produces Materials and proportions Graded 52.5 Ordinary Portland cement supplied by Huaxin Cement in Hubei province, P.
Vol. 13(2000), p. 1659 [6] Zhang Y-M, Sun W, Shi Z.: Journal of Building Materials (China) Vol. 5(2002), p. 274 [7] Gougar M L D, Scheetz B E, Roy D M.: Waste Manage.

Journal of Materials Science, 40 (1), 2005, pp. 87–95
Construction and Building Materials, 24(10), 2010, pp.2003-2010
Cold Regions Science and Technology, 48(1), 2007, pp.34-43
Construction and Building Materials, 22 (10), 2008, pp. 2111–2115
Construction and Building Materials, 24 (4), 2010: 471-478

Parts of the turbines are being upgraded with advanced materials exhibiting e.g. higher creep resistance [3].
The material The tube 33.7 x 6.3 mm (dia. x wall thickness) was made of 14MoV6-3 steel.
Bakker, Materials for Boilers in Ultra Supercritical Power Plants.
Krztoń, Mechanical properties and structure of the Cr-Mo-V low-alloyed steel after long-term service in creep condition, Journal of Achievements in Materials and Manufacturing Engineering, Vol. 23/1 (2007), pp. 39-42
Hlavatý, Influence of post weld heat treatment on secondary hardening of CrMoV welded joints, Proceedings of Metal science and heat treatment 2011, Vol. 53, No. 7-8, pp. 374-378

The performance of organic solar cells also can be affected due to the solution process ability of both the donor and acceptor materials.
Absorption coefficient plays an important role in solar cells devices as it describes the ability of the material to absorb the light energy (photons).
Kim: Solar Energy Materials and Solar Cells, vol. 93 (2009), p. 1263-1267 [2] Y.
Li and et al.: Chinese Physics Letters, vol. 24 (2007), p. 2654 [3] W.Ma, C.Yang, X.Gong, K.Lee, and A.J.Heeger: Advanced Functional Materials vol. 15 (2005), p. 1617-1622 [4] F.Padinger, R.S.Rittberger, and N.S.Sariciftci: Advanced Functional Materials, vol. 13 (2003), p. 85-88 [5] D.C.
Yang: Advanced Functional Materials vol. 11 (2001) [7] Y.Shi, J.Liu, and Y.Yang: Journal of Applied Physics vol. 87 (2000) [8] A.Petrella, M.Tamborra, P.D.Cozzoli, M.L.Curri, M.Striccoli, P.Cosma, G.M.Farinola, F.Babudri, F.Naso, and A.Agostiano: Thin Solid Films vol. 64 (2004), p. 451-452 [9] S.H.Yang, P.L.Rendu, T.P.Nguyen, and C.S.Hsu: Review Advanced Material Science vol. 15 (2007), p. 144-149,

The CP-AgNP solution was centrifuged at 6000 rpm for 30 minutes and filtered through a 0.25 μm PTFE filter membrane to remove solid materials.
Journal of Environmental and Public Health, 2012. https://doi.org/10.1155/2012/460508 [5] Mitra, S., Chakraborty, A.
Journal of King Saud University - Science, 34(3), 101865. https://doi.org/10.1016/j.jksus.2022.101865 [6] Lu, Y., Liang, X., Niyungeko, C., Zhou, J., Xu, J., & Tian, G. (2018).
Journal of Colloid and Interface Science, 415, 39–47. https://doi.org/10.1016/j.jcis.2013.10.018 [19] Parmar, A., Kaur, G., Kapil, S., Sharma, V., Choudhary, M.
Novel biogenic silver nanoparticles as invigorated catalytic and antibacterial tool: A cleaner approach towards environmental remediation and combating bacterial invasion., Materials Chemistry and Physics, 238(July), 121861. https://doi.org/10.1016/j.matchemphys.2019.121861 [20] Wan Mat Khalir, W.

This paper presents the multilevel method basic theory and its material progress which is used in water lubricated plastic alloy bearing’s elastohydrodynamic lubrication(EHL) numerical calculation.
Acknowledgement This work was financially supported by the Science Foundation of Fujian Provincial Education Department (JA09179).
ASME Journal of Tribology, 1989, 108(4)：551～556 [5] W.
Science Publication China，1988，P189～204 [6] Yang Peiran .Ansys of the Fluid Lubrication .Denfense Industry Publication China，1998, P60～71

Acknowledgement This work was financially supported by National Natural Science Foundation of China (50874051) and Guangdong Science and Technology Project (06105411) and NCET, China (NCET-05-0739).
Johnson: Material Science Engineering.
Huang: Theorecial Study on Imapact Compaction of metal powders, Journal of Central South Institute of Mining and Metallurgy.
Hauck, German R M: High velocity compaction compared with conventional compaction, Materials Science and Technology.
Bourdin: High velocity compaction: overview of materials, application and potential, Materials Science Forum.