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The safety analysis for underground tunnel of civil engineering by the stress and deformation of rock mass material Xionggang Xie1, a, Zhaoyang Yu1,b and Zebiao Jiang1,c 1 Mining college, Guizhou University, Guiyang 550025, China a xiexionggang2011@126.com, b zhaoyyugz@hotmail.com, cjiangzbgzu@gmail.com Keywords: tunnel; safety degree; underground; rock material response;civil engineering Abstract.
The Mohr-Coulomb criterion is used in this paper to describe the strength of rock mass in tunnel of civil engineering.
The incremental expression of Hooke’s law in terms of the generalized stress and stress increments has the form, (1) where, where and are material constants defined in terms of the shear modulus, G, and bulk modulus, K, as, , .
Fig. 5 Distribution of horizontal displacement for tunnel surrounding rock mass Conclusions Excavation of tunnel in civil engineering will lead to the redistribution of stress in rock mass, in order to compare the analytic and numerical solution of rock mass response to predict the safety degree of underground tunnel, some calculations are done by theoretical and numerical methods.
Acknowledgements This work was financially supported by the Key Project fro Education Department of Guizhou Province Natural Science(2011034); Introduction of Talent Research Fund of Guizhou University (2010002).

Classification Syllogism in the Farm Vehicle Design based on the Kansei Engineering Z.
This is the basis of Kansei Engineering to guide the design.
Nagamachi, the former president of Mazda automobile group, defined Kansei Engineering as follows: "A kind of technology, which could transform the product's feeling or image into the key element of the design." [1].
Fig.4: Classification Syllogism based on Kansei Engineering.
Kansei engineering, (1995) [3] 長い町は三生まれます.

Corn-rice Powder Extrusion Key Parameters in Twin-screw Extrusion Process Xiao-ping LI1, a, Zhi-sen ZHANG2, b, Hui-jin XIAO2, c, Qiang ZENG2 and Xiao-an ZHANG2 1 Dept. of Mechanical Engineering,Jincheng college of sichuan university, Chengdu, Sichuan, China 2 Dept. of Physics and Technology, Sichuan University of Arts and Science, Dazhou, Sichuan, China alxp200509@126.com, bthrywood@163.com, cxhj212@163.com Keywords: Corn-rice Powder, Twin-screw Extrusion, Key Parameters; Regression Analysis, Response Analysis.
To find the inner relations of extrusion key parameters, 2-factor and 3-level orthogonal experiments are carried out on the twin-screw extruder with the corn-rice powder as the materials.
The extruder can suit perfectly to the materials such as corn-rice mixture.
Journal of Food Engineering, 1995, 25:245-260
Transction of the Chinese Society of Agricultural Engineering. 2000, (3): 91-93．

This special edition presents an overview of recent advancements in materials science and engineering, covering key themes such as the processing of structural metals, fatigue analysis critical for enhancing durability and safety, and innovative building materials and construction technologies aimed at sustainable development.
This edition serves as a valuable resource for researchers and practitioners in materials engineering, machinery and construction.

Industrial Scale Engineering of Photocatalytic Nanomaterials by Flame Spray Pyrolysis (F.S.P.)
Areti Zindrou1, a, Asterios Mantzanis1, b and Yiannis Deligiannakis1,c,* 1Laboratory of Physical Chemistry of Materials & Environment, Department of Physics, University of Ioannina, Ioannina, Greece aa.zindrou@uoi.gr, ba.mantzanis@uoi.gr, cideligia@uoi.gr Keywords: Photocatalysis, Artificial Photosynthesis, Water-splitting, H2, O2, Doping, Flame Spray Pyrolysis, Industrial Engineering, Nanomaterials, BiVO4, TiO2.
Key-Performance-Indicators that allow transition of Lab-Scale to Industrial-Scale engineering of semiconductors are discussed, including cost-analysis and environmental impact of the production process.
Due to these high local temperatures, highly crystalline and homogeneous materials are produced[9].
Especially, in the case of gas-phase synthesis where FSP provides an easy and one-step process for the engineering of multicomponent and/or doped materials for catalytic applications the setup configuration plays a critical role[27].

On several occasions the soil conditions had proven to be a key area for offshore wind farm.
The procedure schedule on investigation, which is proven to be a key area for engineering investigation on offshore wind farm, should be considered to arrange the normal work and combine with the experience of similar engineering before.
These materials are enough for the design of foundation and structure but only adaptable to explore the position in where few generator groups located.
It should point out that engineering investigation, design and construction ought to be combined and integrated, which begin with the acquirement of source material.
The consistency of these materials is favorable of confirming the site load, and relates to the cost and credibility of the engineering.

Quality control and supervision of Material in Construction Yun Cai Zhengzhou Institute of Aeronautic Industrial Management, Zhengzhou, Henan, China 450015 cy2109@163.com Keywords: construction work; materials, supervision, quality control, measures Abstract: The quality of engineering materials, directly affects the whole building quality and grade, structural safety , the external image and use of function after the completion, therefore, the project materials of construction work is the important content of the quality.
As we all know, quality is the lifeblood of construction works, and the constructional material is the base to ensure the quality and quantity of the preliminary engineering quality, therefore, the quality of the materials will have a direct impact on the construction in terms of quality, level, structure, appearance and the usage of the building.
III Supervision of buying materials In the process of purchase , we must weigh the material of that card and prevent using the improper or substandard materials.
Because of the unstable cases in building materials market, the two major materials, mainly steel and cement are often in shortage.
Steel and cement Because of the amount of construction engineering materials consumes is large and the purchase channels have more realities , the construction unit should arrange each batch of steel , cement , approaching request in batches , manufactured minutes varieties piling up , storage , and timely providing certificate .

Study on Modeling Technique about Complex Valve Body Based on Reverse Engineering Qu Li-ganga , Qin Zheng-qi b School of Mechanical &Electrical Engineering, Shenyang Institute of Aeronautical Engineering, Liaoning, Shenyang, P.R.China, 110136, a qulg@syiae.edu.cn, bqinzhengqi1974@163.com Keywords: Reverse engineering; valve body with complex structure; internal cavity duplication; data processing, modeling Abstract.The reverse modeling solution and its key technologies about complex part with internal cavity are introduced in this paper, taken the casting valve body for an example.
Introduction Reverse Engineering(RE) is becoming one of the important modern manufacturing technologies combined with measuring and CAD techniques.
But there are many kinds of parts with complex internal cavity in practice, valve body for example shown as Fig.1, measuring the engineering data of internal cavity or surface is becoming the technical bottleneck in course of implementing reverse engineering[4].
It is not easy to measure the data of the internal cavity of valve body while the reverse engineering technology is employed to develop it.
The liquid silicon rubber, mixed with proper vulcanizator, is filled into the internal cavity of the valve body, taken out after solidification, and smoothening the surface of the entity to prepare for measuring and collecting engineering data, the silicon rubber entity is illustrated in Fig. 2.

This article also argues the strategy of earthquake resistant materials and structural strategy, the role of seismic designs in ecological safety strategies, reliable technology and conceptual design of earthquake engineering, etc. 1.
According to the theory of ecosystem and system theory, the working strategy in the architecture design and building materials engineering should be interdisciplinary working and integrated collaboration of designers and building materials engineers.
Some ecological knowledge and disasters prevention technology should be collected and extracted from ecology and restoration ecology, biology and biotechnology, green building materials engineering, environmental engineering, earthquake disaster reduction planning, building fire protection and prevention, structures against lightning etc.
Therefore earthquake engineering is lifeline engineering and ecological project.
In conceptual design of earthquake engineering, appropriate and reliable tech should be paid attention to.

The MBCP+ is selected for tissue engineering in a large European research program on osteoinduction and mesenchymal stem cell technology (REBORNE 7th EU frame work program, Regenerative Bone defects using New biomedical Engineering approaches, www.reborne.org).
In bony site, the same materials have superior regenerative properties than other bioceramics or allogaft and autograft.
Daculsi et al., Key Engineering Materials. (2008) 361-363:1139-1142
Layrolle, Key Eng Mater 254 (2004) 1005
[9] Yuan et al, Tissue Engineering (2006) 12:1607-15 [10] Habbibovic et al., Biomaterials 26 (2005) 3565