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Many key components of the equipments are made of ferromagnetic materials.
It is found that the biggest surface scattering field strength Kmax can reflect the fatigue damage accumulation of ferromagnetic materials.
At present, the results cannot be directly applied in engineering practice, however, the results confirms the feasibility of the early life prediction of ferromagnetic components by metal magnetic memory testing.
Zheng, On some basic problems of fatigue research in engineering, Int.
Spain, Magnetostrictive phenomena in metallic materials and some of their device applications, IEEE Trans.

Preparation of Porous Polycaprolactone Scaffolds by using Freeze-drying Combined Porogen-leaching Methods Chengyun Ning1,2,a, Haimei Cheng1,4, Zhaoyi Yin 1,4, Wenjun Zhu 3, Hao Chen2, Shumei Lei1,4, Shiheng Yin1,4, Huaguo Liu1 1 College of Materials Science and Technology, South China University of Technology, Guangzhou 510641, China 2 Wenzhou Medical College, Wenzhou 325035, China 3 Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510060, China 4 Key Laboratory of Specially Functional Materials of Ministry of Education, Guangzhou 510641, China a imcyning@scut.edu.cn Keywords: Pore size; Scaffold; Polycaprolactone Abstract.
The microstructure of scaffold was one of key factors for tissue engineering.
Introduction For tissue engineering, 3-D porous biodegradable scaffold play an important role to guide cell attachment, proliferation and tissue regeneration[1-3].
Chen, et al.: Key Engineering Materials.
-Materials Science.

Research Status and Development Trend of High Sand Filling Materials Yong Liua , Jie Chenb* Xi’an University of Science and Technology, Xi’an 710054,China aliuyong.love.com@qq.com, bchenjie363@163.com Keywords: High sand filling materials, Cement, Packing cost, Filling materials, Circular economy Abstract.
Aeolian sand is a desert the most abundant and cheap material, is also the important basic materials of the packing material.
Zhongda Chen, Zhang Dengliang [3]scholars studied the engineering properties of aeolian sand and obtained some results of it .
Highway engineering geology [M].
Shallow seam mining classification of strata lie between water and water[J].Journal of rock mechanics and engineering,2010,29:3622-3627

China ae-mail: pengwanxi@163.com Key words: Biomedical engineering; Phyllostachys pubescens; Extractives; Py-GC-MS Abstract.
So the benzene-alcohol extractives of Phyllostachys pubescens could be used for biomedical engineering.
Introduction Phyllostachys pubescens, which was a superior resources, was often used as the raw materials of furniture, flooring, doors, windows and beams, and so on[1].
Materials and Methods Materials.
So the benzene-alcohol extractives of Phyllostachys pubescens could be used for biomedical engineering .

Study on the Relationship between Surface Roughness and Texture Features of Engineering Ceramics X.L.
Guoc Science and Technology Laboratory on Remanufacturing, Academy of Armored Forces Engineering, China atianxinli719251@sohu.com,bjianquan0514@yahoo.com.cn,cpuzzlele@tom.com Keyword: Engineering ceramics, Texture analysis, Grinding process, Surface roughness, GLCM Abstract.
Introduction The engineering ceramics have been widely employed in various fields for their outstanding mechanical performances [1-2].
Yu: Theory & Technology of Engineering Ceramic Machining (National Defense Industry Press, China 2006) [2] X.L.
Dan: China Mechanical Engineering Vol.21 (2010), p.2639 [3] C.L.

Deterioration appraisement should be focused on detections of engineering indices relating to structural inbeing quality and analyses of multifarious remainder relating to bearing capacity.
Each intrinsic physical and mechanical performance of structural concrete were discussed mostly, based on engineering indices of bearing capacity to establish deterioration degrees of concrete building, then deterioration would be evaluated step by step.
Convenient for scene observation or sampling test, 7 genus of engineering indices were established as table 3, alternatives will depend on the actual situation of the building when appraisement.
Repair key points corresponding to degradation indices.
Fieldwork and sampling test were proposed to calculate the residual quantities of engineering indices, to directly analyse the physical quality and mechanical quality of structural concrete.

The technology of PSA(probabilistic safety assessment) based on fracture mechanics has been applied on the engineering field.
The relation expression of flexure problem between critical load and natural frequency was given to assessment the structure of the ocean engineering structure[4].
Q345 steel which is usually used on the main structure of the port cranes, belonging to middle and low strength materials has lower yield strength while its fracture toughness-KIC is relatively high.
For the purpose of applying the PFAC to the engineering, it is recommended that the 90% reliability fitting curve to be adopted as the probabilistic safety assessment.
Jin, Probabilistic analysis and assessment of failure of engineering structures [ D] Beijing University of Aeronautics and Astronautics.(1998) 120-129

Safety Problems of Engineering Structures at the Ground Fracture Sites Taking Xian’s for the Example Guang Yao Fu1,a, Fan Sheng Zeng2,b, Min Tian2,c 1College of Civil Engineering, Chang'an University, Xi'an 710061, China 2China Northwest Building Design Research Institute, Xi'an 710003, China afugy610@sohu.com,bZFS5765@163.com,ctianmintm@126.com Key words: Ground fracture.
Civil engineering structure.
(1) "Code for Investigation of Geotechnical Engineering" [8].
Peng: Journal of Engineering Geology, Vol. 11 [04] (2003), p. 343
Li: Journal of Engineering Geology, Vol. 15[04] (2007), p. 434

Improvement of accelerated weathering test through physicochemical analysis for polymeric materials in building construction Teng-Chun Yang1,a 1Department and Institute of Materials Science & Engineering, National Taiwan University, Taipei 106, Taiwan atcyang.04@gmail.com Keywords: Accelerated weathering, Polymeric material, Physicochemical analysis, Durability, Degradation Introduction In civil engineering, the long-term service life of buildings as environmental measures is one of important performances being comparable to structure and fire safety, and it is demanded to improve durability of materials in building construction.
As part of building materials, polymeric materials become widespread in civil engineering because of taking advantage of excellent property, such as lightweight, high corrosion resistance, and good formability.
Reliability is an engineering discipline that should be applied throughout all stages of development and maintenance of the product in its life service.
Unfortunately, only very few researchers in civil engineering have being researching on macroscopic size (color, mechanical property etc.) of polymeric materials but barely discussing these microscopic size (physicochemical production ).
The other key point here is that these effect factors are not all absorbed by the material to transform the degradation phenomena.

Effects of hair fibers on braking friction Materials Yunhai Ma1, 2 ,Baogang Wang1, 2 ,Shenglong Shen1, 2 , Xueying Geng3 , Honglei Jia1, 2, Shuang Wen 4 1 The Key Laboratory of Engineering Bionics (Ministry of Education), Jilin University (Nanling Campus), 5988 Renmin Street, Changchun 130025, P.R.
China. 2 The College of Biological and Agricultural Engineering, Jilin University (Nanling Campus), 5988 Renmin Street, Changchun 130025, P.R.
China 4The Key Laboratory of Advanced Structural Materials (Ministry of EducationP.R.China )Changchun University of Technology, 2055 Yan’an Street, Changchun 130012, P.R.
Introduction Friction materials have been developed for more than 100 years.
Experimental part Raw materials and friction materials prescription Designed non-asbestos braking friction materials formula (mass fraction) has composite mineral fibers, Phenolic resin, foam iron, precipitated barium sulfat, petroleum coke, and glass fiber and so on.