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Magnetic material based on full-Heusler alloy Co2CrGa Hongpei Han1,a 1College of Electro-Information Engineering, Xuchang University, Xuchang, China ahhp102@163.com Keywords: Magnetic material; Full-Heusler alloy; Material engineering; First-principles Abstract.
Importantly, the calculated spin polarization around the Fermi level is very high up to 93.2%, which indicates that full-Heusler alloy Co2CrGa would be possibly applied to the field of the material engineering and spintronic devices.
From Fig. 3, we can conclude that the d electrons of Co and Cr atoms play a key role for the magnetism of the bulk Co2CrGa.
Importantly, the calculated spin polarization at the Fermi level in Table 1 indicates that full-Heusler alloy Co2CrGa is highly spin polarized ferromagnetic material which can be applied to the field of the material engineering and spintronic devices.
It is indicated that full-Heusler alloy Co2CrGa with the well magnetism and spin polarization would be possibly applied to the field of the material engineering and spintronic devices.

The chemical engineering technology linked chemical engineering professional knowledge to engineering practice is an important compulsory course.
Core knowledge units include basic organic chemical engineering raw materials, the thermal cracking of hydrocarbons, the conversion of aromatic hydrocarbon, catalytic hydrogenation, and so on.
The main objective of classroom teaching is to grasp the production process theory, the theory structure system must be understood and the key theories must be given prominence in the classroom teaching.
In order to increase the utilization rate of raw materials, improve product quality, reduce pollution, energy consumption and production cost, chemical engineering enterprises usually adopt the improved new process, which often based on the mature process in traditional textbooks.
They can visually describe the structure of equipments and materials flow, anatomize in-depth the process flow, enhance students’ perceptual knowledge for chemical engineering production process.

A method to determine fracture toughness using Berkovich indenter for bulk materials Min He1,2,a, Duanhu Shi1,b, Feng Yang1,c, Ning Zhang1,d, Huafeng Guo1,e 1Jiangsu Key Laboratory of Large Engineering Equipment Detection and Control, Xuzhou Institute of Technology; 2Department of Mechanical Science and Engineering, Xuzhou Institute of Technology, Xuzhou 221008 aheminbox80@hotmail.com, bshiduanhu@126.com, cxzit_yf@163.com,dsprningzn@126.com,eghfmaster@163.com Keywords: Berkovich indenter; indentation fracture technique; ductile materials; damage mechanics.
For the indenter test in ductile materials, there is little surface creation.
are estimated for two materials used in the present work with Eq.(8).
Conclusions The key problem of critical plastic penetration depth () is solved for ductile materials based on the continuum damage mechanics and damage constitutive equation.
Materials Science and Engineering A 528 (2011) 832–837

Structural Optimization of Building Materials Using Optimality Criteria Approach and Its Realization in ANSYS Ruohong Zhao Civil engineering Dept.
Wenzhou University Whenzhou, China 84494424@qq.com Keywords: structural optimization, optimality Criteria, Lagrangian multiplier, building materials Abstract.
In this paper, the structural optimization of building materials is discussed focusing on the explicit formulation of the constraints and the optimal iteration algorithm.
In another word, the problem is how to minimize the consummation of building materials or the cost of the building while the safety and serviceability can be assured [1-4].
(2) In this paper only one constraint was taken into consideration, for the convenient description of the structural optimization of a cantilever beam, but in real engineering, there may be multiple constraints.

Experimental Study on Surface Roughness in Quick-Point Grinding Engineering Ceramics MaLian-jie1,2, a, Gong Ya-dong1, b, Bao Yuan-ji2, c 1School of Mechanical Engineering & Automation, Northeastern University, Shenyang 110819, China. 2School of Control Engineering, Northeastern University at Qinhuangdao, Qinhuangdao 066004, China.
amlj@mail.neu.edu.cn, b gongyd@mail.neu.edu.cn, c baoyuanji@gmail.com Key words: surface roughness; process parameters; quick-point grinding; engineering ceramics Abstract: Through grinding experiment on mica glass ceramic, the mechanism of material removal was analysed, the fracture and removal of engineering ceramics was suitable for Griffith’s fracture strength theory.
Through examination of grinding debris for various brittle materials[3], suggests material removal mainly by brittle fracture.
Results and Discussions Brittleness fracture mechanism of engineering ceramic.
Fig. 5 Deflecting angle affecting surface roughness Conclusions The fracture and removal of engineering ceramics was suitable for Griffith’s fracture strength theory.

Study of Production, Teaching and Research Integration in Training of Material Engineering Talents Guo Xiaofei1a, Yin Dalei2, Xu Bin1, Wang Yue1 1School of materials science and engineer, Shandong Jianzhu University, Shandong Jinan, 250101, China 2Coal industry Jinan design & research Co.
Materials science and engineering is the study of material composition and structure, synthesis and preparation, properties and performance, other basic elements, their mutual relations and restrict rules of an engineering science.
How to cultivate high-level, high-quality and practical talents is one of the primary tasks in the current engineering colleges. 1.
Approaches of Integration of Production Study Research in Materials Engineering Talents Training Material engineering personnel training should be accord with the discipline of disciplinary basis, application-oriented and personal training and adjust the professional structure and strengthen integration degree of majors and market demand.
This plan aims to cultivate various types of engineering and technical personnel who have strong ability of innovation and adapt to the economic and social development needs to improve the quality of training of engineering personnel.

Numerical simulations of the internal fluid field for porous scaffold used in tissue engineering Liu Qinggang1,a, Jiang Jingzhi1,b, Cui Haiting1,c, Yu Xinqi1,d, Peng Peiying1,e (Hebei university of science and technology, Shijiazhuang, Heibei, China, 05001s8) aqgliu81@163.com, bjjzhi2000@126.com, ccuiht@126.com, dyxqyxq0016@163.com, epengpeiy@163.com Key words: Tissue engineering, Porous scaffold, Velocity distribution, Pressure distribution Abstract: Models with main-branch channel, crossing channel and net type channel are established and nutrient liquid with a velocity of 0.01m/s is adopted in the study to investigate the fluid field in the channel by using FEA software FLUENT.
Studies in this paper will be of benefits for the development of tissue engineering.
That is, model 2 and model 3 are more suitable for the tissue engineering.
Fabrication and characterization of the porous scaffolds for bone tissue engineering, New chemical materials, 2004,32(9): 17-20 [4] Zhao Jin, Yuan Xiaoyan, Yao Kangde, Progress in the fabrication technology of tissue engineered porous scaffolds, Chemical industry and engineering progress, 2002,21(9): 644-647 [5] An Xiao, Shi Yanchun, Chen Meihua, et al.
Experimental study on tissue engineering scaffolds in treatment for spinal cord injury．Space medicine ＆ medical engineering, 2013,26(1):56-59

Some key parts used in such area as the national defence are made of high performance hard and brittle materials, and they should meet not only the requirement of geometry accuracy but also that of specified physical performance in manufacturing.
Such a part may be classified as a workpiece of high performance hard and brittle materials with complicated surface.
As a result, a basis for precision removal process of any other part of high performance hard and brittle materials with complex surface is laid, and a technology support for precision process of key parts in the national major project is provided.
Shi: Grinding of Difficult-to-cut Materials (National Defence Industry Press, China 1999).
Huang, et al: Key Engineering Materials, Vol. 141-146 (2004), pp. 141-146.

Because of the outstanding advantages of genetic algorithms in solving optimization problems of engineering design, in this paper, using genetic algorithm combined with Kansei Engineering as a optimal design method for product’s semantics modeling design, and using real-coded way to characterize shape characteristics of CNC machine tools, comprehensive accounted of user’s semantic needs and color Mido, then, established the fitness function, combined with the key components to complete the design.
Therefore, it is widely used to solve the engineering problems which need to find out global optimal results.
Study on the modeling design of CNC machine tools based on GA Product design is the process that optimal combines several materials which have a different shape, color and function together, and it is also the process from analysis information to conceive and search for the best answer for the problem.
Obtain semantic information based on Kansei engineering.
When finish the operation, the system will display the result code to interface to facilitate call the three-dimensional solid model and the materials ball, to achieve the operations of real-time rig out and color the program, then access to the design program of CNC machine tools (Figure 6).

High-level engineering and project management personnel should be trained and transported for the industrial and mining enterprises and engineering construction sectors, particularly state-owned large and medium enterprises to enhance enterprise’s strength and market competitiveness.
Compared with academic master, the training approaches of engineering master should appropriately reduce academic courses, and increase engineering practice courses and practical activities to train students’ professional skills and improve their engineering research capacity by solving actual technical problems in engineering activities.
The score difference indicates that there is bias against the engineering masters' degree, thus the students good at theoretical study are not quite willing to register for the entrance exam of engineering master.
In terms of knowledge structure, the basic and professional knowledge of engineering master is weaker than that of academic master.
When postgraduate comes up with a good idea and need to verify it, they can get access to the appropriate conditions, such as advanced equipment, abundant capital and raw materials and scientific goals.