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Online since: February 2018
Authors: Ying Wang, Zhen Wen Yang, Na Wang, D.P. Wang
Wangd
Tianjin Key Lab of Advanced Joining Technology, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
awangnatju@163.com, btjwangdp@163.com, ctjuyangzhenwen@163.com, dwangycl@tju.edu.cn
Keywords: ZrO2 ceramic; Ag-Cu-Ti + Mo composite filler; interfacial microstructure; formation mechanism
Abstract.
Materials and Experimental Procedures Yttrium-stabilized ZrO2 ceramic (YSZ) was cut into 6 × 6 × 4 mm for microstructure observation.
A series of reaction products was formed by chemical reactions between the liquid Ag-Cu-Ti + Mo composite filler and the base materials during brazing.
Moreover, the Mo with a low CTE of 5.1×10-6/°C could reduce the CTE of the braze interlayer, and then the CTE mismatch among the bonded materials was decreased.
Knowles, Joining of engineering ceramics, Int.
Materials and Experimental Procedures Yttrium-stabilized ZrO2 ceramic (YSZ) was cut into 6 × 6 × 4 mm for microstructure observation.
A series of reaction products was formed by chemical reactions between the liquid Ag-Cu-Ti + Mo composite filler and the base materials during brazing.
Moreover, the Mo with a low CTE of 5.1×10-6/°C could reduce the CTE of the braze interlayer, and then the CTE mismatch among the bonded materials was decreased.
Knowles, Joining of engineering ceramics, Int.
Online since: March 2015
Authors: Li Shen, Jing Chen, Yu Sun
Figure 1 Basic elements of an electronic nose
1.2 Gas sensor and its array
To improve the performance of electronic nose needs to choose the appropriate sensor array.A key part of the gas sensor is the sensitive materials,different sensitive material can make different types of gas sensors.The commonly used electronic nose gas sensors can be divided into four categories:(1) metal oxide semiconductor (MOS) sensors and organic conductive polymers (CP) sensors based on chemo-resisters principles;(2) MOS field-effect transistor(MOSFET)sensors based on potentiometric principles[3]; (3)Acoustic-Wave Gas Sensors;(4)fluorescence sensors base on the optical principles.Different sensors have different responsiveness to odors ,the difference of sensors in this paper has been listed in Table 1.
SnO2, ZnO, WO3 are paid more attention since they have the characteristics of simplicity in fabrication, high sensitivity and all kinds of morphology and structure of gas sensitive materials such as nanowires, nanorods, nano ring have been successfully synthesized.
Gas sensitive response mechanism of the conductive polymer gas sensor is:A chemical reaction or swelling of the polymer chain happens when the electrochemical polymer materials absorb gas,and the change would alter the electrical conductivity.Therefore,it can be used to detect the species and concentrations of gases.
[7]Zhu Jia Jing.The progress development of electronic nose sensor technology [J] Beijing Biomedical Engineering, 2002, 21 (4): 298-301
[8]Gao Xu Ping, Wang Ping.Advances in electronic nose signal processing method [J] Foreign Medical Bio: Volume of Biomedical Engineering, 2001, 24 (1): 1-6
SnO2, ZnO, WO3 are paid more attention since they have the characteristics of simplicity in fabrication, high sensitivity and all kinds of morphology and structure of gas sensitive materials such as nanowires, nanorods, nano ring have been successfully synthesized.
Gas sensitive response mechanism of the conductive polymer gas sensor is:A chemical reaction or swelling of the polymer chain happens when the electrochemical polymer materials absorb gas,and the change would alter the electrical conductivity.Therefore,it can be used to detect the species and concentrations of gases.
[7]Zhu Jia Jing.The progress development of electronic nose sensor technology [J] Beijing Biomedical Engineering, 2002, 21 (4): 298-301
[8]Gao Xu Ping, Wang Ping.Advances in electronic nose signal processing method [J] Foreign Medical Bio: Volume of Biomedical Engineering, 2001, 24 (1): 1-6
Online since: December 2010
Authors: Zhe Zhang, Zi Hua Guo
Erection of Pearl Bridge by Bear Angle Vertical Swivel Method
Zihua Guo1, a, Zhe Zhang2,b
1 The Design Institute of Civil Engineering and Architecture of DUT, Dalian 116023, China
2 Institute of Bridge Engineering, Dalian University of Technology, Dalian, 116024, China.
aguozh_1979@163.com, bzhangzhe@dlut.edu.cn Key words: Pearl bridge; Bear Angle Vertical Swivel; Construction; Arch Bridge; China Abstract.
This method has the following properties: saving construction materials, reducing construction equipments, constructed rapidly and safely, not influencing navigation and not interrupting traffic, etc.
aguozh_1979@163.com, bzhangzhe@dlut.edu.cn Key words: Pearl bridge; Bear Angle Vertical Swivel; Construction; Arch Bridge; China Abstract.
This method has the following properties: saving construction materials, reducing construction equipments, constructed rapidly and safely, not influencing navigation and not interrupting traffic, etc.
Online since: October 2011
Authors: Ya Feng Li, Jia Yuan Liu, Yan Zhang
Startup of Denitrification Bioreactor and Influence of Temperature and DO for Treatment
Yafeng Li1, a, Jiayuan Liu2,b and Yan Zhang3,c
1.2.3Municipal and Environmental Engineering School of Shenyang Jianzhu University
Shenyang, China
ayafengli88@sina.com, bjiayuan5335@163.com, c747176778@qq.com
Keywords: COD;nitrogen remove; temperature; DO; effect factors .
Materials and methods A.
The temperature of simulation sewage is 30˚C, DO is at the range of 0.3-0.5mg/L, pH value is 8, to simulate the start operation of practical engineering at a certain extent.
The essence of biological wastewater treatment is the use of enzymatic and biochemical reactions in micro-organisms’ body to achieve the degradation of organic matter, so the types and quantities of enzyme in their body is the key point to decide whether the bioreactor can play processing performance.
Materials and methods A.
The temperature of simulation sewage is 30˚C, DO is at the range of 0.3-0.5mg/L, pH value is 8, to simulate the start operation of practical engineering at a certain extent.
The essence of biological wastewater treatment is the use of enzymatic and biochemical reactions in micro-organisms’ body to achieve the degradation of organic matter, so the types and quantities of enzyme in their body is the key point to decide whether the bioreactor can play processing performance.
Online since: September 2011
Authors: Jing Jing Yuan, Hong Sheng Qiu, Shu Guang Liu, Xiao Min Huang
The material properties are listed as table 2:
Table 2 Material parameters of the structure
The main parts of the overpass(Q370 and Q345)
Stayed-Cables
Elastic modulus(MPa)
210
195
Poisson ratio
0.3
0.3
Coefficient of linear expansion
Therefore, combining with the structure characteristics, the car overpass FEA model of whole bridge has been built by spatial plate beam method in ANSYS.
Vol.6(2009), p.71 [2] Jingjing Yuan,Hongsheng Qiu, Shuguang Liu, Xiaoming Huang, “ The Study on Selection of Urban Car Overpass”, in Key Technologies of Railway Engineering ICRE2010, Beijing, China, pp.746-751,2010 [3] Zehan Jiang, Shuguo Zhou, Ping Lu: Vibration, Measurement & Diagnosis.
Vol.2(1992), p.20 [4] Ju Yan-zhong, Zhou Guan-nan, Bai Jun-feng, “Finite Element Analysis and Test Study of Dynamic Behavior of Single-tower and Double-face Cable-stayed Bridge”, in 2010 International Conference on Mechanic Automation and Control Engineering, MACE2010, Wuhan, China, pp.2814-2817 [5] Xiaoxin Ma, Renda Zhao: Sichuan Architecture.
Vol.6(2009), p.71 [2] Jingjing Yuan,Hongsheng Qiu, Shuguang Liu, Xiaoming Huang, “ The Study on Selection of Urban Car Overpass”, in Key Technologies of Railway Engineering ICRE2010, Beijing, China, pp.746-751,2010 [3] Zehan Jiang, Shuguo Zhou, Ping Lu: Vibration, Measurement & Diagnosis.
Vol.2(1992), p.20 [4] Ju Yan-zhong, Zhou Guan-nan, Bai Jun-feng, “Finite Element Analysis and Test Study of Dynamic Behavior of Single-tower and Double-face Cable-stayed Bridge”, in 2010 International Conference on Mechanic Automation and Control Engineering, MACE2010, Wuhan, China, pp.2814-2817 [5] Xiaoxin Ma, Renda Zhao: Sichuan Architecture.
Online since: January 2013
Authors: Bei Hai He, Ying Li, Wen Juan Gu
A Study of Coating surface Microstructure and Characteristics of Coated Paper Related to Binder
Ying Li1,a, Wenjuan Gu1,band Beihai He2,c
1Faculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming, 650093, China
2State Key Lab of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640, China
ahaishanying@126.com, bCorresponding author: guwenjuan001@163.com, cppebhhe@scut.edu.cn
Keywords: Binder; Surface microstructure; Pore; Surface property; AFM
Abstract.
AFM adhesion maps mainly capture variation in materials compliance.
AFM adhesion maps mainly capture variation in materials compliance.
Online since: July 2011
Authors: Zu Min Qiu, Li Li Chen, Zhen Zhong Huang, Yan Fen Wu
Synthesis and characterization of new kinds sulfoxide extractants for
palladium(II)
Lili Chen1, 2, a, Zumin Qiu1,b, Zhenzhong Huang2,c, Yanfen Wu1,d
1School of Environmental Science and Engineering, Nanchang University , China, Nanchang Jiangxi ,330031.
2School of Chemical Engineering, Jiangxi Normal University, China, Nanchang Jiangxi, 330022.
Acknowledgements The research work is funded by the Natural Science Foundation of Jiangxi Province (NO. 2009GZH0075) and Open Foundation of Poyang Lake Environment and Resource Utilization Education Ministry Key Laboratory (NO.
Aly: Journal of Hazardous Materials, Vol. 149 (2007) No.2, pp.465-470
Acknowledgements The research work is funded by the Natural Science Foundation of Jiangxi Province (NO. 2009GZH0075) and Open Foundation of Poyang Lake Environment and Resource Utilization Education Ministry Key Laboratory (NO.
Aly: Journal of Hazardous Materials, Vol. 149 (2007) No.2, pp.465-470
Online since: January 2012
Authors: Li Qin Zhao, Yu Min Guo, Pei Zheng Zhang
College of Mechanical Engineering & Antomatization.
College of Engineering, Shanxi Agricultural University, Shanxi Taigu, 030801, 3.
Shanxi Bureau of Agricultural Machinery, Shanxi Taiyuan, 030002, China azlq0908@sohu.com, bguoyuming@sohu.com Key words: Wheat no-tillage planter, performance evaluation index, gray theory Abstract: No-tillage planting is one of the most important assignments of the conservation tillage technology.
(in Chinese with English abstract) [2] The conservation tillage machine symposium materials compilation.
College of Engineering, Shanxi Agricultural University, Shanxi Taigu, 030801, 3.
Shanxi Bureau of Agricultural Machinery, Shanxi Taiyuan, 030002, China azlq0908@sohu.com, bguoyuming@sohu.com Key words: Wheat no-tillage planter, performance evaluation index, gray theory Abstract: No-tillage planting is one of the most important assignments of the conservation tillage technology.
(in Chinese with English abstract) [2] The conservation tillage machine symposium materials compilation.
Online since: July 2024
Authors: Ping Su, Zi Xuan Wang, Lu Jiang
Adaptability Layer
Key Aspects
Lower assessed value items
Average score (total score of 4)
Campus Space
Site Layout
Low surplus of surrounding land
1.41
Poor accessibility to academic buildings
1.52
Lower connection with neighboring teaching buildings
1.33
Low service functions around teaching buildings
1.50
Architectural Space
Building Type
Poor mobility and dismantling of interior walls
1.33
Functional Configuration
Fewer types of internal functions
2.25
Monotonous organization of interior spaces
1.75
Interior Facilities
Low variety of interior fittings
1.66
Poor mobility of furniture
1.83
Support System
Interface Mode
Poor skin permeability
2.75
Poor physical properties
1.66
Structural System
Low horizontal and vertical scalability
1.41
Low span of structure
1.33
Structure low reserved strength
2.23
Equipment System
Low equipment mobility
2.25
Low equipment detachability
2.16
Low Intelligence of equipment
2.00
3.2.1.
Relatively speaking, the specific functions of shared space in the configuration of teaching buildings of different disciplines show a certain regularity (Figure 3): comprehensive study buildings mainly consist of study rooms of different scales, but there are also a certain amount of scientific research and experimental space; science and engineering laboratory research buildings mainly include smart learning, communication and learning space, as well as the introduction of university-enterprise integration space; the design and art buildings mainly set up exchange learning, informal learning and exhibition space in addition to large professional learning space; the humanities and social sciences buildings emphasize the exchange needs of professional learning, as well as the mobility of strong informal learning space.
Learning furniture are often with styles that are easy to operate and move, free to be combined and matched, and made of lightweight and durable materials, thus realizing free combinations of spatial forms and flexible adjustments in the way of use.
This paper provides a preliminary analysis of the existing problems and spatial reconfiguration characteristics of existing teaching buildings, which can provide a certain reference for related engineering design practice and application research. 6.
Relatively speaking, the specific functions of shared space in the configuration of teaching buildings of different disciplines show a certain regularity (Figure 3): comprehensive study buildings mainly consist of study rooms of different scales, but there are also a certain amount of scientific research and experimental space; science and engineering laboratory research buildings mainly include smart learning, communication and learning space, as well as the introduction of university-enterprise integration space; the design and art buildings mainly set up exchange learning, informal learning and exhibition space in addition to large professional learning space; the humanities and social sciences buildings emphasize the exchange needs of professional learning, as well as the mobility of strong informal learning space.
Learning furniture are often with styles that are easy to operate and move, free to be combined and matched, and made of lightweight and durable materials, thus realizing free combinations of spatial forms and flexible adjustments in the way of use.
This paper provides a preliminary analysis of the existing problems and spatial reconfiguration characteristics of existing teaching buildings, which can provide a certain reference for related engineering design practice and application research. 6.
Online since: February 2011
Authors: Zheng Yi Jiang, Si Hai Jiao, Quan She Sun, Dong Bin Wei, Ai Wen Zhang
Sun2,d and D.B.Wei1,e
1School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong, Wollongong NSW 2522, Australia
2Research Institute, Baoshan Iron and Steel Company Limited, Shanghai 201900, China
aaz483@uow.edu.au, bshjiao@baosteel.com, cjiang@uow.edu.au, dsunqs@baosteel.com
edwei@uow.edu.au
Keywords: Firing process; Enamel; Microstructure; Mechanical propertie
Abstract.
The key problem of enamelling steel is the combination of high strength and good enamellability.
Ceramic Engineering and Science Proceedings 15(3) (1994): 109-123
The key problem of enamelling steel is the combination of high strength and good enamellability.
Ceramic Engineering and Science Proceedings 15(3) (1994): 109-123