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Online since: February 2012
Authors: Chol Nam Ri, Hui Qun Yuan
Temperature leads to thermal stress , thermal deformation and changes in material properties, therefore, affect the vibration characteristics .
Using theoretical or numerical methods, has been studied for thermal vibration of composite materials and some parts.
Can be considered the natural frequency change due to temperature change has two factors; one is the material properties with temperature changes, the other is the thermal stress.
Here, A is the natural frequency without considering temperature change and thermal stress, B is the natural frequency only considering the temperature-dependent material properties, C is the natural frequency only considering thermal stress,D is the natural frequency considering the temperature-dependent material properties and thermal stress.
Xuli: Journal of Vibration, Measurement & Diagnosis.
Using theoretical or numerical methods, has been studied for thermal vibration of composite materials and some parts.
Can be considered the natural frequency change due to temperature change has two factors; one is the material properties with temperature changes, the other is the thermal stress.
Here, A is the natural frequency without considering temperature change and thermal stress, B is the natural frequency only considering the temperature-dependent material properties, C is the natural frequency only considering thermal stress,D is the natural frequency considering the temperature-dependent material properties and thermal stress.
Xuli: Journal of Vibration, Measurement & Diagnosis.
Online since: November 2011
Authors: Hong Shu Chen, Shao Hui Tian, Zhi Yi Hu
Ventilation cooling material is an innovative concept kind of thermal infrared camouflage material yielded recently, mesh-covering cloth is a typical representative of ventilation cooling material, which mainly use mesh cloth and objects being disguised to form an effective combination, in order to reduce heat storage of surface by air convection, correspondingly, to reduce the infrared heat of equipment surface, thus achieving stealth by infrared camouflage.
Fig. 1 Looming draft of square meshes Fig. 2 Looming draft of diamond meshes Fig. 3 Looming draft of longitude-symmetric Fig. 4 Latitude-symmetric diagonal pattern 2.1.2 Design of Process Parameter (1) specification design of raw material and fabric: linear density of polyamide staple yarn is 244d tex, the warp and weft count of fabric are 180 pieces/10cm
Conclusion (1) Raw materials: with the same parameters of fabric tightness, meshes distribution has a great influence on mechanical properties and its stability of canopy mesh fabric
References [1] JIN Yong-an, Development of new construction fabric, J , Wool Textile Journal, 5 ( 2007 ) 43- 44 [2] YU Weidong, CHU Yuancai, Textile Physics, first ed., DONGHUA UNIVERSITY PRESS CO,LTD, Shanghai, 2002
[3] SUI Quanxia, Development and Analysis of New Tent Products, J, Tianjin Textile Science & Technology, 2(2010)4-7
Fig. 1 Looming draft of square meshes Fig. 2 Looming draft of diamond meshes Fig. 3 Looming draft of longitude-symmetric Fig. 4 Latitude-symmetric diagonal pattern 2.1.2 Design of Process Parameter (1) specification design of raw material and fabric: linear density of polyamide staple yarn is 244d tex, the warp and weft count of fabric are 180 pieces/10cm
Conclusion (1) Raw materials: with the same parameters of fabric tightness, meshes distribution has a great influence on mechanical properties and its stability of canopy mesh fabric
References [1] JIN Yong-an, Development of new construction fabric, J , Wool Textile Journal, 5 ( 2007 ) 43- 44 [2] YU Weidong, CHU Yuancai, Textile Physics, first ed., DONGHUA UNIVERSITY PRESS CO,LTD, Shanghai, 2002
[3] SUI Quanxia, Development and Analysis of New Tent Products, J, Tianjin Textile Science & Technology, 2(2010)4-7
Online since: October 2010
Authors: Guray Kaya, Bekir Karasu, Selvin Yesilay Kaya, Erkul Karacaoğlu
Effects of Firing Temperature and Time on the Luminescency of Phosphors in Strontium Aluminate System Co-doped by Eu2O3 and Dy2O3 and Prepared by Solid State Reaction Processing
Selvin Yesilay Kaya1, Bekir Karasu2, Guray Kaya3, Erkul Karacaoglu2
1Anadolu University, Faculty of Fine Arts, Department of Glass, Eskisehir, Turkiye
2Anadolu University, Faculty of Engineering and Architecture, Department of Materials Science and Engineering, Eskisehir, Turkiye
3Dumlupinar University, Faculty of Engineering, Department of Ceramic Engineering, Kutahya, Turkiye
Email: 1syesilay@anadolu.edu.tr, 2bkarasu@anadolu.edu.tr, 3gurayk@anadolu.edu.tr
Keywords: Photoluminescence, Phosphor, Rare earth, Long afterglow, Firing time and temperature, Characterization.
Experimental SrCO3 (99.5%), Al2O3 (99.99%), H3AlO3, Eu2O3 (99.99%), Dy2O3 (99.9%), (99.95%), Y2O3, and H3BO3 were used as starting materials.
They were weighed according to the following recipes: Starting Materials Amounts (moles) Al2O3 0.23-0.48 SrO 0.25-0.46 Eu2O3 0.001-0.003 Dy2O3 0.002-0.006 Y2O3 0.001-0.003 B2O3 0.02-0.06 The weighed batches were wet-milled in zirconia bowls using zirconia balls and isopropyl alcohol at 200 rpm for 1 hour.
References [1] W., Haoyi, H., Yihua and W., Yinhai, Journal of Luminescence, Volume 130, Issue 1, Pages 127-130, 2009
Experimental SrCO3 (99.5%), Al2O3 (99.99%), H3AlO3, Eu2O3 (99.99%), Dy2O3 (99.9%), (99.95%), Y2O3, and H3BO3 were used as starting materials.
They were weighed according to the following recipes: Starting Materials Amounts (moles) Al2O3 0.23-0.48 SrO 0.25-0.46 Eu2O3 0.001-0.003 Dy2O3 0.002-0.006 Y2O3 0.001-0.003 B2O3 0.02-0.06 The weighed batches were wet-milled in zirconia bowls using zirconia balls and isopropyl alcohol at 200 rpm for 1 hour.
References [1] W., Haoyi, H., Yihua and W., Yinhai, Journal of Luminescence, Volume 130, Issue 1, Pages 127-130, 2009
Online since: February 2014
Authors: Zhong Lei Wang, Yang Li, Yong Zhou
The application of three-dimensional Unigraphics NX software in graduation design of mechanical design major
Yang Li1,a, Yong Zhou1,b, Zhonglei Wang2,c
1School of Material Science and Engineering,Shandong Jianzhu University,Jinan 250101,China
2School of Mechanical and Electrical Engineering,Shandong Jianzhu University,Jinan 250101, China
ali77yang@163.com, bzhouyong511112@163.com, cwade_thunder@163.com
Keywords: Unigraphics NX software,graduation design,mechanical design major
Abstract.
Introduction With the rapid development of computer science and technology, the world manufacturing industry has entered the age of the digital design, analysis and manufacture.
Because it’s easy to learn and use and its powerful, Unigraphics NX software is widely used in science and engineering colleges and universities at present.
The application of Solidworks software in the teaching reform of mechanical engineering[J].Hei Longjiang Science and Technology Information, 2007 (01)
The application of Solidworks software in the teaching reform of mechanical engineering[J].Jiaozuo Institute of Technology Journal, 2007 (01)
Introduction With the rapid development of computer science and technology, the world manufacturing industry has entered the age of the digital design, analysis and manufacture.
Because it’s easy to learn and use and its powerful, Unigraphics NX software is widely used in science and engineering colleges and universities at present.
The application of Solidworks software in the teaching reform of mechanical engineering[J].Hei Longjiang Science and Technology Information, 2007 (01)
The application of Solidworks software in the teaching reform of mechanical engineering[J].Jiaozuo Institute of Technology Journal, 2007 (01)
Online since: August 2013
Authors: Hong Bao Li, Yan Qing An
Changsha university of science and technology professor Zhu Mengliang do the related research[2], as shown in table 9.
Central South Highway Engineering,2005 [2] Zhu Mengliang,ZhuJing.Material parameters on the high-temperature stability of asphalt mixture[J].Journal of changsha university of science and technology(natural science report),2007 [3] Zhang Weibing,Qian Huijing.
The factors and improvement measures of the asphalt mixture high temperature stability[J].Traffic science and technology and economy,2008 [4] Zhu Hongzhou,Huang Xiaoming.Stability of asphalt mixture at high temperature influence factors analysis[J].Highway traffic science and technology,2004
Central South Highway Engineering,2005 [2] Zhu Mengliang,ZhuJing.Material parameters on the high-temperature stability of asphalt mixture[J].Journal of changsha university of science and technology(natural science report),2007 [3] Zhang Weibing,Qian Huijing.
The factors and improvement measures of the asphalt mixture high temperature stability[J].Traffic science and technology and economy,2008 [4] Zhu Hongzhou,Huang Xiaoming.Stability of asphalt mixture at high temperature influence factors analysis[J].Highway traffic science and technology,2004
Online since: October 2014
Authors: Vladimir Starenchenko, Svetlana Starenchenko, Yuliya Solov'eva, Artem Solov'ev
Efforts are focused on the methodological details in order to consider the impact of machine hardness and the deformation strengthening of the material in the relaxation process.
Science & Eng.
Science & Eng.
Starenchenko, The creep behavior of single-crystalline Ni3Ge alloys Russian Physics Journal. 52, 4 (2009) 390-397
Starenchenko, Effect of the orientation of strain axes on the creep in Ni3Ge alloy single crystals, Bulletin of the Russian Academy of Sciences.
Science & Eng.
Science & Eng.
Starenchenko, The creep behavior of single-crystalline Ni3Ge alloys Russian Physics Journal. 52, 4 (2009) 390-397
Starenchenko, Effect of the orientation of strain axes on the creep in Ni3Ge alloy single crystals, Bulletin of the Russian Academy of Sciences.
Online since: December 2013
Authors: Mohd Noor Ervina Efzan, H.J. Kong, C.K. Kok
Doty, "Influences of alloying elements, solution treatment time and quenching media on quality indices of 413-type Al–Si casting alloys," Materials Science and Engineering A, vol. 489, pp. 426-438, 2008
Svensson, "The influence of cooling rate and manganese content on the B-Al5FeSi phase formation and mechanical properties of Al–Si-based alloys," Materials Science and Engineering A, vol. 490, pp. 385-390, 2008
Sokolowski, "Microstructure and mechanical properties of AC AlSi9CuX alloys," Journal of Achievements in Materials, vol. 24, no. 2, pp. 51-54, 2007
Goodier, Resistant Materials, London: Heinemann Education Publisher, 2003
Black, Workshop Processes, Practices and Materials, USA: Routledge, 2012
Svensson, "The influence of cooling rate and manganese content on the B-Al5FeSi phase formation and mechanical properties of Al–Si-based alloys," Materials Science and Engineering A, vol. 490, pp. 385-390, 2008
Sokolowski, "Microstructure and mechanical properties of AC AlSi9CuX alloys," Journal of Achievements in Materials, vol. 24, no. 2, pp. 51-54, 2007
Goodier, Resistant Materials, London: Heinemann Education Publisher, 2003
Black, Workshop Processes, Practices and Materials, USA: Routledge, 2012
Online since: October 2014
Authors: Xu Chao Li, Kun Yuan, Ya Zhou Yu, Zhi Hua Li, Fei Peng Liu
Because of this, in addition to the common characteristics of ordinary radio waves, the microwave has its own characteristics, for example, microwave can go deep into the interior of certain materials and promote the interaction with their molecules or atoms, certain materials will cause thermal effects when absorbing microwave.
It almost penetrates glass, porcelain and other inorganic non-metallic materials without being absorbed.
Water, food, plastics, rubber and other organic materials will absorb it and be heated.
Metallic materials will reflect it.
Rubber and other organic materials have good absorbing properties, the input energy almost fully absorbs, so it can save more energy and get high energy efficiency
It almost penetrates glass, porcelain and other inorganic non-metallic materials without being absorbed.
Water, food, plastics, rubber and other organic materials will absorb it and be heated.
Metallic materials will reflect it.
Rubber and other organic materials have good absorbing properties, the input energy almost fully absorbs, so it can save more energy and get high energy efficiency
Online since: May 2010
Authors: Ying Peng, Zhao Yang, Jin Ling Hou, Jian Rong Xu, Shan Tang Liu, Fu Cheng Ming
It is a set of material and physical properties.
Emergence, Vol. 1 (1999),p.10-38 [2] Chen Yu, Complex Adaptive System (CAS) theory and its application - the origin, content and Revelation . the Journal of system disputatious science Vol.4(2001) ,p.35-39 [3] Xu Zhi, in: System Science.
Shanghai Science and Technology Education Press(2000 ) [4] Senge, P.M. , in: The Fifth Discipline.
Academy of Management Journal, Vol.1(1998) ,p.3-6
Science of Science and Science and Technology Management, Vol.12(2007 ),p.167-173 [13] Ying Peng, Xing Cao, Guiyue Song, Fucheng Ming, Analysis on the Boundary Decision of Chinese Telecom Operator - A Study Based on the Research of Transaction Cost.
Emergence, Vol. 1 (1999),p.10-38 [2] Chen Yu, Complex Adaptive System (CAS) theory and its application - the origin, content and Revelation . the Journal of system disputatious science Vol.4(2001) ,p.35-39 [3] Xu Zhi, in: System Science.
Shanghai Science and Technology Education Press(2000 ) [4] Senge, P.M. , in: The Fifth Discipline.
Academy of Management Journal, Vol.1(1998) ,p.3-6
Science of Science and Science and Technology Management, Vol.12(2007 ),p.167-173 [13] Ying Peng, Xing Cao, Guiyue Song, Fucheng Ming, Analysis on the Boundary Decision of Chinese Telecom Operator - A Study Based on the Research of Transaction Cost.
Online since: September 2012
Authors: Lu Lu Jiang, Mei Fu Luo, Jie Fang Yang
Material and Methods
Coordinate Conversion of the GPS Receiving Data.
Acknowledgments This work was supported by 863 National High-Tech Research and Development Plan (2011AA100705) and Zhejiang Provincial Natural Science Foundation of China (Z3090295).
C., Beutler G. and Blewitt G.: Journal of Geodynamics, Vol. 25(1998), p.213-240
[6] Dean L., lliqiong L.: Journal of Southwest JiaoTong University, Vol. 36(2001), p.365-368
Acknowledgments This work was supported by 863 National High-Tech Research and Development Plan (2011AA100705) and Zhejiang Provincial Natural Science Foundation of China (Z3090295).
C., Beutler G. and Blewitt G.: Journal of Geodynamics, Vol. 25(1998), p.213-240
[6] Dean L., lliqiong L.: Journal of Southwest JiaoTong University, Vol. 36(2001), p.365-368