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Key Technologies Research for Impellers Machining Based on NX Xianyi Li 1,2,a, Jianzhong Fu 1,b and Jiqiang Li2,c 1Zhejiang University, Zhejiang Province Key Lab of Advanced Manufacturing Technology, Department of Mechanical Engineering Hangzhou, Zhejiang Province 310027, P.R.
The rough machining of impeller’s flow channel will remove the massive materials, Increasing the machining efficiency during the rough and semi-finish milling process is the main consideration, The feed and depth of cut should be as big as possible in order to remove redundance material in the short time.
Because remainder is big in the process of rough machining, Two different directions may selected to carry on, when direction is selected, the working range should be big as far as possible, eliminates materials as far as possible.
Fred: Society of Manufacturing Engineers, Vol. 2(1987)pp.2-12
[5] S.L Chen,W.T Wang: Journal of Materials Processing Technology,Vol.115 (2001),pp.284-293.

Genome engineering is a powerful tool that enhances the accelerated innovation in materials development allowing both the discovery and optimization of functionalities based on a wide range of techniques.
Materials genome engineering (MGE) is becoming a powerful solution to accelerate the innovation in the field of materials development.
The key element in the materials development is the use of models for the generation of a library that includes an array of regions with different compositions/properties that can be rapidly investigated using high-throughput investigation techniques.
Conclusions Genome engineering is a powerful tool that allows an accelerated innovation in materials engineering.
Takeuchi, Nature Materials 3, 429 (2004)

It's the cause for many failure accidents in soil nailing support engineering.
But it was often neglected in engineering design and construction.
Engineering application of this technique has been for more than 10 years[1].
It is engineering favor in foundation pit supporting and slope reinforcement.
Soil nailing steel materials were II grade rebar.

One is to judge the key factors during materials service.
In general, industrial system and civil engineering has normalized, explicit and fixed process and structure.
There are different relationships among components and equipments in one system and engineering.
This method can supply better training for domain researchers and engineers and obviously improve the efficiency of materials service case analysis.
Wang, “Development of a Bridge Failure Database”, Fourth US-Taiwan Bridge Engineering Workshop, August 4-5, 2008

Tissue engineering cartilage reconstructed in vitro provide a new strategy to repair cartilage defection [1].
The key problem in cartilage tissue-engineer is the insufficient of seed cells and the long time culture caused dedifferentiation.
Materials and Methods 1.1.
Materials.
Tissue Engineering.

The European industry, especially mechanical engineering industry, has lost step by step its competitiveness in the years that followed the global crisis.
The European industry, especially mechanical engineering industry, has lost step by step this advantage.
The coaching partnership in mechanical engineering The coaching main idea consists in “understanding the present” and “designing the future” [1].
The main object of the firm activity is general mechanical engineering and the products are made according to the customer’s drawings and drafts.
Netolitzchi, Research Regarding the Influence of the Motricity on the Emotional Intelligence, Applied Mechanics and Materials 555 (2014) 609-615.

There are many factors that affect listening, among which materials play a key role in facilitating listening comprehension.
Some materials are not authentic but recorded in the form of a series of testing items.
New model of listening training accordingly attaches more importance to its materials.
Listening materials should be adjusted and updated frequently on the basis of learnes’ needs, which is largely because of the fact that materials are “the tangible manifestation of the curriculum in action ” [2].
A full –scale questionnaire including 18 questions was conducted among 80 non-English majors , who are mainly freshmen and sophoremores from eight different majors at Wuhan Polytechnic University , such as engineering , information technology, art design ,humanities and so on.

Research on the Application of Limestone Powder in Concrete Engineering Shuangmei Cao School of Continuing Education, Henan Polytechnic Institute, 291# Gongnong Road, Nanyang City, Henan Province, PR China, 473009 caosm@126.com Key words: limestone powder, volume of limestone powder, concrete performance Abstract.
The company grasps the development trend of construction materials, studies the advanced experience such as “integrated pollution control and waste recycling” and “building energy-saving and green buildings” and actively explores new building materials.
In recent years, Shengxin New Building Materials Co. ltd. of Xixia has two problems need to be solved in the course of business.
So, in order to ensure the proper application of limestone powder in the concrete engineering, it should be based on the above test, then adjust the amount of water or additive, do repeated experiments, in order to get the proper asnd reasonable amount of the component materials which can meet the work requirements of concrete strength and workablity and give full play to role of limestone powder in concrete projects.
Developing new building materials, utilization of limestone scrap waste, makes the building material company find an effective way to substitute scarce raw materials of fly ash, achieving a revitalizing effect, lowering the cost of concrete projects, promoting energy saving, reducing consumption, low carbon and sustainable development.

During ISMQC 2013 that were selected by Programme Committee to be published in the Special Issue of “Key Engineering Materials” and one additional paper whose subject fits perfectly the scope of the symposium.

Materials and methods PCL pellets (Mw = 70,000-90,000), gelatin powder were purchased from Sigma-Aldrich.
Mishra, Fabrication and characterization of PCL/gelatin composite nanofibrous scaffold for tissue engineering applications by electrospinning method, Materials Science and Engineering. 3 (2013) 1228-1235
Ramakrishna, Polypyrrole-contained electrospun conductive nanofibrous membranes for cardiac tissue engineering, Journal of Biomedical Materials Research Part A. 99A (2011) 376-385
Lee, Hydrophilized polycaprolactone nanofiber mesh-embedded poly(glycolic-co-lactic acid) membrane for effective guided bone regeneration, Journal of Biomedical Materials Research Part A. 91A (2009) 400-407
Chung, Electrospun nanofibers composed of poly(ε-caprolactone) and polyethylenimine for tissue engineering applications, Materials Science and Engineering: C. 29 (2009) 1725-1731