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Online since: April 2014
Authors: Ping Bo Qu
In quantitative terms, equipment layouts mainly consider transportation cost minimization of the material flow, the work piece flow, and pedestrian between devices or units per unit of time period.
For cellular manufacturing systems (Cellular Manufacturing System, CMS) [2], optimization objectives vary, devices are classified to form manufacturing unit, rational distribution unit makes logistics costs between the unit and the unit a minimum , cost of all materials transport a minimum.
(3)Random Key conversion Random Key’s general approach is to use a continuous sequence The specified number for each behavior, usually represented by random coding, Then select one transformation rules are real number sequence to integer sequences.
And Random Key notation supports standard crossover.
Chinese Mechanical Engineering, 2007, 18 (21):2576 -2579
For cellular manufacturing systems (Cellular Manufacturing System, CMS) [2], optimization objectives vary, devices are classified to form manufacturing unit, rational distribution unit makes logistics costs between the unit and the unit a minimum , cost of all materials transport a minimum.
(3)Random Key conversion Random Key’s general approach is to use a continuous sequence The specified number for each behavior, usually represented by random coding, Then select one transformation rules are real number sequence to integer sequences.
And Random Key notation supports standard crossover.
Chinese Mechanical Engineering, 2007, 18 (21):2576 -2579
Online since: May 2012
Authors: Chao Wang, Zhong Hai Yin, Xue Jun Chen
A Brief Analysis on the Design of Polystyrene Composite Thermal Insulation Material in Terms of Thermal Characteristics
Wang Chao1, a, Yin Zhonghai 2,b and Chen Xuejun 3,c
1 Architecture and Material Engineering Department, Hubei University of Education, China
2 Architecture and Material Engineering Department, Hubei University of Education, China
3 School of Materials Science and Engineering, Wuhan University of Technology, China
aemail: wcrcr@163.com
bemail: sunyq_95508@163.com
cemail: chen1964@163.com
Key words: Thermal characteristics; Polystyrene composite thermal insulation material; Heat transfer coefficient; Design
Abstract: In the field of architecture, “energy-saving building” has been mentioned as a strategy which is as important as the ones of our population, resources, environment and sustainable development.
The design of the building wall materials in the building envelope is the key step of the wall insulation, which can be taken as the key technology in building energy efficiency.
Thus the thermal resistance of composite materials is increased
Construction Materials Testing Handbook, China Architecture and Building press.
New Building Materials,2001(4).
The design of the building wall materials in the building envelope is the key step of the wall insulation, which can be taken as the key technology in building energy efficiency.
Thus the thermal resistance of composite materials is increased
Construction Materials Testing Handbook, China Architecture and Building press.
New Building Materials,2001(4).
Online since: June 2014
Authors: Tian Jin Tang, De Wei Sun
Remote sensor lens design based on the matching of materials
Tang Tianjin1,a, Sun Dewei1,b
1Beijing Institute of Space Mechanic & Electricity, Beijing 100094
atianjin79526@aliyun.com, bsdw508@163.com
Key words: materials, thermal characters, remote sensor, athermatilization, optical and mechanical compensation
Abstract: Thermal characters matching optimization of the remote sensor lens materials determinates the thermal adaptive faculty of the sensor, therefore become the most important influencing factor which will decide whether the sensor can work.
Formulas are listed to illustrate the principle of the athermatilization which is realized through the reasonable matching of different materials.
Generally, lens are designed, assembled and tested at normal atmospheric temperature, but when the remote sensor works on orbit, the characters of the optical materials and bracing structure materials will change as the change of the working temperature, the best focus position will alternate and the performance of the sensor will fall down.
Analysis of the material’s thermal difference Change of the working temperature will cause the change of the characters of the materials, mainly including several respects as follows: Change of the index Based on the principle of the engineering optics, the index of the optical materials is relative index whose unit is the index of air, in other word, the relative index of the material is the ration of the absolute index to the air index.
Many groups of solutions about the optical materials and structure materials can be achieved through solving equations.
Formulas are listed to illustrate the principle of the athermatilization which is realized through the reasonable matching of different materials.
Generally, lens are designed, assembled and tested at normal atmospheric temperature, but when the remote sensor works on orbit, the characters of the optical materials and bracing structure materials will change as the change of the working temperature, the best focus position will alternate and the performance of the sensor will fall down.
Analysis of the material’s thermal difference Change of the working temperature will cause the change of the characters of the materials, mainly including several respects as follows: Change of the index Based on the principle of the engineering optics, the index of the optical materials is relative index whose unit is the index of air, in other word, the relative index of the material is the ration of the absolute index to the air index.
Many groups of solutions about the optical materials and structure materials can be achieved through solving equations.
Online since: January 2014
Authors: Hua Jiang, Yu Sheng Jiang, Jin Xun Zhang
Information management system
Basic structure of information management system
Information management system of TBM construction is composed of 8 parts: system display interface, engineering progress, cutting wheel, screw conveyor, time statistics, materials consumption, single-ring and multiple-rings.
Among them, system display interface, engineering progress, cutting wheel and screw conveyor belong to display interface, the major functions are to display various parameters, engineering progress and the relationship between engineering progress and significant risk evaluation engineering.
So, information management system is developed mainly to propose a tool or method for user to monitoring the whole process of TBM tunneling and achieving risk prediction and management through the analysis of key parameters and the statistics of main materials.
l The system can display engineering progress and analyze risk management information timely, it also provides convenient for the users to analyze the distribution situations and mechanical mechanism of major risk engineering, and proposes the keys in management and controls.
l The system can make detail statistical analysis on consumed materials during TBM construction, concluding tail grease, foam volume and grouting quantity, then construction quality and cost can also be controlled.
Among them, system display interface, engineering progress, cutting wheel and screw conveyor belong to display interface, the major functions are to display various parameters, engineering progress and the relationship between engineering progress and significant risk evaluation engineering.
So, information management system is developed mainly to propose a tool or method for user to monitoring the whole process of TBM tunneling and achieving risk prediction and management through the analysis of key parameters and the statistics of main materials.
l The system can display engineering progress and analyze risk management information timely, it also provides convenient for the users to analyze the distribution situations and mechanical mechanism of major risk engineering, and proposes the keys in management and controls.
l The system can make detail statistical analysis on consumed materials during TBM construction, concluding tail grease, foam volume and grouting quantity, then construction quality and cost can also be controlled.
Online since: November 2012
Authors: Wei Ming Gao, Wei Zhang, Kai Wu, Xiao Qing Han, Chun Hua Zhang, Jing Li
The Study of Environmental Characteristic by Coastal Engineering in Rock Coast
Chun Hua Zhang1, a, Xiao Qing Han2, b, Jing Li3, c, Wei Zhang4, d,
Kai Wu4, e, Wei Ming Gao4, f* (Corresponding Author)
1Gansu Normal University for Nationalities, Hezuo, Gansu Province, China
2Hebei Utilization and Planning Institute of Land Resources, Shijiazhuang, Hebei Province, China
3Department of Traffic Engineering Hebei Vocational and Technical College of Communications, Shijiazhuang, Hebei Province
4Hebei Key Laboratory of Environmental Change and Ecological Construction College of Resources and Environmental Science Hebei Normal University, Shijiazhuang, Hebei Province, China
a253436841@qq.com, bxqhan312@126.com, c961927950@qq.com, d635589746@qq.com, e2271292661@qq.com, f*gaowmd@263.net
Keywords: Rock coast, Remote sensing analysis, Evolvement, Coastal engineering
Abstract.
With 3 S technology, it analyzed the evolvement processing and reasons of the rock coast by construction of coastal engineering in half century.
The results were shown that it was changed strongly by the station from 1979 to 2007 when the station stopped the littoral current caused by coastal engineering such as Qinhuandgao Port and Shanhaiguan Shipyard.
The reason of which was that the sediment transform with littoral current was stopped by the coastal engineering in Qinhuangdao Port from 1969 to 1979[3-5].
It was changed strongly by the station from 1979 to 2007 when the station stopped the littoral current caused by coastal engineering such as Qinhuandgao Port and Shanhaiguan Shipyard.
With 3 S technology, it analyzed the evolvement processing and reasons of the rock coast by construction of coastal engineering in half century.
The results were shown that it was changed strongly by the station from 1979 to 2007 when the station stopped the littoral current caused by coastal engineering such as Qinhuandgao Port and Shanhaiguan Shipyard.
The reason of which was that the sediment transform with littoral current was stopped by the coastal engineering in Qinhuangdao Port from 1969 to 1979[3-5].
It was changed strongly by the station from 1979 to 2007 when the station stopped the littoral current caused by coastal engineering such as Qinhuandgao Port and Shanhaiguan Shipyard.
Online since: October 2010
Authors: Yong Tang, Yu Zhong Li, Qiang Wu, Bang Yan Ye, X.I. Qu, X.F. Hu
Heating Current Control in Electric Hot Minipore drilling hard-to-cut
material
L.Y.Xu
1,2,a, Q.Wu
2,b, B.Y.Ye
1, X.F.Hu
1 ,Y.ZH.Li
2 , X.l.Qu
3,c
1
School of Mechanical & Automotive Engineering, South China Univrsity of Technology,
Guangzhou, 510640, China
2
Numerical Control Technology Key Laboratory of Colleges of Guangdong Province, GuangDong
Polytechnic Normal University, Guangzhou 510635, China
3
School of Computer Science & Engineering,South China University of Technology,
Guangzhou, 510640, China
a
lyx510640@126.com, b
wuqiang20008@163.com, cquxilong@126.com
Keywords: Electric hot drilling, hard to cut material, optimizing of cutting process, optimum
temperature control
Abstract.
The key point for improving efficiency of Electric Hot Machining (EHM) is to keep an optimal heating temperature in cutting process.
Introduction With the development of new material and high-technology products, holes machining have been widely used in aerospace, astronautics, automobile, mechanical engineering, military, medical attendance et al.
This law is verified by theoretical analysis and experimental investigation[2,3],many materials are cut based on conservative law of optimum cutting temperature, table 1 shows the optimum cutting temperature of some materials.
Xu, Heating Current Control in Electric Hot Machining Based on Conservation Law of Optimum Cutting Temperature,Key Engineering Materials Vols. 392-394 (2009) pp 294-298.
The key point for improving efficiency of Electric Hot Machining (EHM) is to keep an optimal heating temperature in cutting process.
Introduction With the development of new material and high-technology products, holes machining have been widely used in aerospace, astronautics, automobile, mechanical engineering, military, medical attendance et al.
This law is verified by theoretical analysis and experimental investigation[2,3],many materials are cut based on conservative law of optimum cutting temperature, table 1 shows the optimum cutting temperature of some materials.
Xu, Heating Current Control in Electric Hot Machining Based on Conservation Law of Optimum Cutting Temperature,Key Engineering Materials Vols. 392-394 (2009) pp 294-298.
Online since: December 2010
Authors: Jin Sheng Liang, Jun Ping Meng, Yan Ding, Guang Chuan Liang, Li Juan Wang
University Education of Intellectual Property for Innovation Talents of Science and Technology in Functional Material Industry
Jinsheng Lianga*, Junping Mengb, Yan Dingc, Lijuan Wangd and
Guangchuan Liange
Institute of Power Source and Ecomaterials Science,Hebei University of Technology, Tianjin 300130,China
aLiang_jinsheng@sina.com, bmengjunping@hebut.edu.cn, cdingyan@hebut.edu.cn, dwljhh@yahoo.com.cn, eliangguangchuan@hebut.edu.cn
Keywords: new material industry, functional material, science and technology innovation, talent training, intellectual property education, environment functional materials
Abstract.
Combined the training practice on the innovation talents of science and technology in the industries of the new energy and environment functional materials, the education mode of the intellectual property for the compound innovation talents of science and technology in the functional material industry was studied. 1.
Combined the industry technology of the energy and environment materials and the great strategic demand for compound innovative talents, the popularization and the education mode of the intellectual property for the compound innovation talents of science and technology in the functional material industry were researched, according to the basic requirement for the inorganic nonmetal material engineering specialty. 2.
Innovating of the Teaching Mode for the Specialized Courses and Raising the Capability of Students for Science and Technology Innovation [3] Relying on the Institute of Power Source and Ecomaterials Science, and the National Key Subject, Hebei University of Technology built up the department of inorganic non-metallic materials.
Ding, et al.: Advanced Materials Research,(2010), v 96, p. 289
Combined the training practice on the innovation talents of science and technology in the industries of the new energy and environment functional materials, the education mode of the intellectual property for the compound innovation talents of science and technology in the functional material industry was studied. 1.
Combined the industry technology of the energy and environment materials and the great strategic demand for compound innovative talents, the popularization and the education mode of the intellectual property for the compound innovation talents of science and technology in the functional material industry were researched, according to the basic requirement for the inorganic nonmetal material engineering specialty. 2.
Innovating of the Teaching Mode for the Specialized Courses and Raising the Capability of Students for Science and Technology Innovation [3] Relying on the Institute of Power Source and Ecomaterials Science, and the National Key Subject, Hebei University of Technology built up the department of inorganic non-metallic materials.
Ding, et al.: Advanced Materials Research,(2010), v 96, p. 289
Online since: February 2014
Authors: Yi Chu, Xiao Gui Zhang
Engineering ability training is the core problem in engineering colleges and universities.
To achieve these changes and to improve the students' ability of engineering practice, the teaching reform of the course of mechanical design for mechanical engineering is very important.
Therefore, as one of the core courses in mechanical engineering, it is the key point of the teaching reform.
In the content of the course, the working principle, application characteristics must play as the basic context, to step by step give an appropriate plan for the course, including getting appropriate reduction of the theory teaching proportion, putting emphasis on the engineering application, size calculation, material and structure, the contents of the three parts.
[6] Zhang Xiaogui, Discussion on Teaching of Engineering Design Basis for Printing Engineering profession, 11th National Mechanical Design Teaching Seminar, pp.107-109, 2009.
To achieve these changes and to improve the students' ability of engineering practice, the teaching reform of the course of mechanical design for mechanical engineering is very important.
Therefore, as one of the core courses in mechanical engineering, it is the key point of the teaching reform.
In the content of the course, the working principle, application characteristics must play as the basic context, to step by step give an appropriate plan for the course, including getting appropriate reduction of the theory teaching proportion, putting emphasis on the engineering application, size calculation, material and structure, the contents of the three parts.
[6] Zhang Xiaogui, Discussion on Teaching of Engineering Design Basis for Printing Engineering profession, 11th National Mechanical Design Teaching Seminar, pp.107-109, 2009.
Online since: June 2013
Authors: Qing Jiang Chen, Jian Feng Zhou, Xiao Ting Lei
The Description and Characterization of Symmetric Frames and Gabor Frames and Applications in Material Engineering
Qingjiang Chena, Xiaoting Leia, Jianfeng Zhoub
aSchool of Science, Xi’an University of Architecture andTechnology, Xi’an 710055, China
b School of Math. and Computer Engineering, Xi’an University of Arts andTechnology, Xi’an 710065
aqjchen66xytu@126.com, awwwzxj@126.com, b fghjkp147@126.com
Keywords: symmetric frames, symmetric filterbanks, multiresolution analysis, wavelet frame sub- space, affine frames, Gabor frames, Sobolev space
Abstract.
Materials science is an interdisciplinary field applying the properties of matter to various areas of science and engineering.
Introduction Manufacturing engineering is an interdisciplinary field applying the properties of matter to var -ious areas of science and engineering.
The key is the corresponding dual frame .
Materials science is an interdisciplinary field applying the properties of matter to various areas of science and engineering.
Introduction Manufacturing engineering is an interdisciplinary field applying the properties of matter to var -ious areas of science and engineering.
The key is the corresponding dual frame .
Online since: October 2010
Authors: Xian Li, Wan Jun Ye, Geng She Yang, Ning Zhuang
This paper proposes treatment materials for medium thickness spalling on loess slope.
Conclusions This paper proposes a treatment materials for medium thickness spalling on loess slope.
[2] Qijiang WANG:Study on Stability for Northwest Loess Slope Engineering [D].
Hydrogeology & Engineering Geology,2007,(3):59-62
[7] Ling XU, Fuchu DAI, KWONG A KL and ET AL.Chinese Journal of Geotechnical Engineering,Vol. 31 No. 2(2009),p. 288
Conclusions This paper proposes a treatment materials for medium thickness spalling on loess slope.
[2] Qijiang WANG:Study on Stability for Northwest Loess Slope Engineering [D].
Hydrogeology & Engineering Geology,2007,(3):59-62
[7] Ling XU, Fuchu DAI, KWONG A KL and ET AL.Chinese Journal of Geotechnical Engineering,Vol. 31 No. 2(2009),p. 288