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Online since: April 2019
Authors: Nurhanna Badar, Annie Maria Mahat, Kelimah Elong, Nor Fadilah Chayed, Norlida Kamarulzaman
The issue of using nanostructured materials with the assistance of high technology instrumentations or machines for fabrication of nano-devices are also important.
It is a simple, versatile technique using a high power laser to evaporate target materials and to deposit thin films [5].
The relationship used is given in Eq. (1), (1) where a is the absorption coefficient of the material corresponding to a value of wavelength l, h is Planck's constant, A is the proportionality constant, n is the frequency of light, Eg is the band energy and x = ½ (for direct transition mode materials) [11].
Shalaev, Broadband Transformation Optics Devices, Materials. 3 (2010) 4793–4810
Robertson, Band offsets of wide-band-gap oxides and implications for future electronic devices, Journal of Vacuum Science and Technology B. 18 (2000) 1785–1791
It is a simple, versatile technique using a high power laser to evaporate target materials and to deposit thin films [5].
The relationship used is given in Eq. (1), (1) where a is the absorption coefficient of the material corresponding to a value of wavelength l, h is Planck's constant, A is the proportionality constant, n is the frequency of light, Eg is the band energy and x = ½ (for direct transition mode materials) [11].
Shalaev, Broadband Transformation Optics Devices, Materials. 3 (2010) 4793–4810
Robertson, Band offsets of wide-band-gap oxides and implications for future electronic devices, Journal of Vacuum Science and Technology B. 18 (2000) 1785–1791
Online since: June 2011
Authors: Thong Shing Hwang, Chih Cheng Peng, Yi Jing Lin, Wei Ren Lai, Nanjou Lin, Po Wei Chang
Finally, we can get:
(2)
3.2 Derivation of the Slicing Rate Equation
While using the Chemical Mechanical Polish Method to derive the material removal model, Preston equation is usually to be used to express CMP removal rate.
Which means material removal rate is proportional to the vertical cutting force and the wire feed speed: .
Acknowledgement This research was sponsored by A-TECH System Co., Ltd. and National Science Council, Taiwan, R.O.C. under the grant NSC 99-2622-E-035-011-CC3.
McSpadden, “ Fixed AbrasiveDiamond Wire Machining—part I: Process Monitoring and Wire Tension Force,” International Journal of Machine Tools & Manufacture, 2003 [3]William I.
McSpadden, “ Fixed Abrasive Diamond Wire Machining—part II: Experiment Design and Results,” International Journal of Machine Tools & Manufacture, 2003 [4]Zhang Yibing, Dai Yuxing, Yuan Julong and Xiong Wanli, “Design and Implement of Wire Tension Control System for Multi-Wire Saw,” Journal of Mechanical Engineering, 2009 [5]Madhav S.
Which means material removal rate is proportional to the vertical cutting force and the wire feed speed: .
Acknowledgement This research was sponsored by A-TECH System Co., Ltd. and National Science Council, Taiwan, R.O.C. under the grant NSC 99-2622-E-035-011-CC3.
McSpadden, “ Fixed AbrasiveDiamond Wire Machining—part I: Process Monitoring and Wire Tension Force,” International Journal of Machine Tools & Manufacture, 2003 [3]William I.
McSpadden, “ Fixed Abrasive Diamond Wire Machining—part II: Experiment Design and Results,” International Journal of Machine Tools & Manufacture, 2003 [4]Zhang Yibing, Dai Yuxing, Yuan Julong and Xiong Wanli, “Design and Implement of Wire Tension Control System for Multi-Wire Saw,” Journal of Mechanical Engineering, 2009 [5]Madhav S.
Online since: July 2013
Authors: Hong Zhong, Wei Hong Wang, Guang Yi Liu, Dan Feng Guo
Therefore, in this paper, the aroylthiourea constructional unit which contains bioactivities was introduced into polymer chain, in order to develop novel thiourea macromolecule pesticide which possessed chemical controlled-release function, and capsule wall material for pesticide microcapsule which possessed physical controlled-release function, and provide theoretical and experimental basis for developing new pesticide.
Scheme 1 Synthetic route of compound 2 Experimental Materials and Apparatus.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (50604016, 51074183).
Hydrometallurgy Vol. 80(2005), P. 98 [4] S Wang, H Zhong and A P Wang: Chinese Journal of Applied Chemistry Vol. 24-8(2007), P. 291 [5] S Wang, H Zhong and G Y Liu: Journal of Central South University Vol. 15(2008), P. 463 [6] Y J Li, Z G Zhang and K Jin: Acta Chimica Sinica Vol. 65-9(2007),P. 834 (in Chinese) [7] W H Wang, H Zhong and W L Zhang: Journal of Central South University Vol. 40-1(2009), P. 67 [8] X G Dong, L Yan and X J Song: Acta Pharmaceutica Sinica Vol. 42-1(2007), P. 108 (in Chinese) [9] L Doub, L M Richardson and D R Herbst: J Am Chem Soc Vol. 80(1958), P. 2205 [10] D W Fu, J R Song and Y H Ren: Huaxue Tongbao Vol. 12 (2007), P. 942 (in Chinese) [11] P A Yonova and G M Stoilkova: J.
Scheme 1 Synthetic route of compound 2 Experimental Materials and Apparatus.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (50604016, 51074183).
Hydrometallurgy Vol. 80(2005), P. 98 [4] S Wang, H Zhong and A P Wang: Chinese Journal of Applied Chemistry Vol. 24-8(2007), P. 291 [5] S Wang, H Zhong and G Y Liu: Journal of Central South University Vol. 15(2008), P. 463 [6] Y J Li, Z G Zhang and K Jin: Acta Chimica Sinica Vol. 65-9(2007),P. 834 (in Chinese) [7] W H Wang, H Zhong and W L Zhang: Journal of Central South University Vol. 40-1(2009), P. 67 [8] X G Dong, L Yan and X J Song: Acta Pharmaceutica Sinica Vol. 42-1(2007), P. 108 (in Chinese) [9] L Doub, L M Richardson and D R Herbst: J Am Chem Soc Vol. 80(1958), P. 2205 [10] D W Fu, J R Song and Y H Ren: Huaxue Tongbao Vol. 12 (2007), P. 942 (in Chinese) [11] P A Yonova and G M Stoilkova: J.
Online since: December 2012
Authors: Jing Ping Qu, Ai Yi Huang, Guang Ming Xian
Some of the parameters are: vibration parameters (frequency, amplitude), display parameters (sizing grid, display scale, image translation and rotate angle) and other parameters (rotate speed, material, sampling time).
On-line characterization flow field of polymer melts by using optical real-time processing software We use two kind of materials (PS and HDPE), three kind of rotate speed (20rpm, 24rpm, and 32rpm), five kind of vibration amplitude (0.04mm, 0.08mm, 0.12mm, 0.16mm, and 0.20mm), and five kind of vibration frequency (5Hz, 8HZ, 10Hz, 12Hz, and 15Hz).
Journal of Neuroscience Methods. 2008, 175 : 44–57
Journal of Applied Polymer Science. 1993, 47, (3):395-405
Biophysical Journal. 1994, 67: 2501-2510
On-line characterization flow field of polymer melts by using optical real-time processing software We use two kind of materials (PS and HDPE), three kind of rotate speed (20rpm, 24rpm, and 32rpm), five kind of vibration amplitude (0.04mm, 0.08mm, 0.12mm, 0.16mm, and 0.20mm), and five kind of vibration frequency (5Hz, 8HZ, 10Hz, 12Hz, and 15Hz).
Journal of Neuroscience Methods. 2008, 175 : 44–57
Journal of Applied Polymer Science. 1993, 47, (3):395-405
Biophysical Journal. 1994, 67: 2501-2510
Online since: November 2012
Authors: Guang Wen Zhou, Gui Ping Wang, Ya Zhou Jia
Attrition causes bearing and other parts burnout, that turn the electricity main axis lubrication has problem, and the part material may has problem.
Bearing and other parts is best to adopt the high temperature wear-resisting material to enhance the reliability
Journal of Harbin Institute of Technology, 2005, 37(12):1725-1727
Jilin University Journal (technology edition),2004,34(2): 260-263
International Journal of Quality and Reliability Management, 2005, 22(4):421~430
Bearing and other parts is best to adopt the high temperature wear-resisting material to enhance the reliability
Journal of Harbin Institute of Technology, 2005, 37(12):1725-1727
Jilin University Journal (technology edition),2004,34(2): 260-263
International Journal of Quality and Reliability Management, 2005, 22(4):421~430
Online since: December 2012
Authors: Kei Fei Song, Zhen Wei Han
Error Analysis of the Micro Temperature Control System
Zhenwei Han1, a, Kefei Song1, b
1Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, China
ahanzhenwei1234@163.com, bsongkefei@sina.com
Keywords: error analysis; temperature measurement circuit; nonlinear error; system error
Abstract.
Because of the influence on temperature coefficient of refractive index and coefficient of thermal expansion for the thin film material, the transmission spectrum of narrow band-pass filters will drift as environmental temperature changes.
For materials with positive temperature coefficient, as the temperature rises, the main effect is the peaks move to longer wavelengths when the temperature changes small, and moisture in the filters will release, to cause the peaks to move to shorter wavelengths, when the temperature changes greatly [1].
References [1] Yun Cui, Mianjun Ma, Yuqing Xiong, Duoshu Wang and Liangfu Huang: Vacuum & Cryogenics Vol.10 No.2 (2004), p. 75-81 In Chinese [2] Yongcheng Wang, Yuanyuan Dang, Shuyan Xu and Kefei Song: Optics and Precision Engineering Vol.18 No.6 (2010), p. 1333-1339 In Chinese [3] Fuyi Huang, Jingyi Wu, Ruzhu Wang and Sheng Li: Journal of Shanghai Jiaotong University No.1 (2009), p. 60-65 In Chinese [4] Hongfei Nie, Xiaoping Li and Yan He: Chinese Journal of Mechanical Engineering No.2 (2009), p. 53-59 In Chinese [5] Jietian Zhang, Hongbo Jia and Lei Ren: Journal of Transducer Technology Vol.21 No.12 (2002), p. 13-14 In Chinese [6] Haitao Qin, Chenyang Xue, Li Qin, Binzhen Zhang and Youchun Ma: Instrument Technique and Sensor No.1 (2007), p. 39-41 In Chinese
Because of the influence on temperature coefficient of refractive index and coefficient of thermal expansion for the thin film material, the transmission spectrum of narrow band-pass filters will drift as environmental temperature changes.
For materials with positive temperature coefficient, as the temperature rises, the main effect is the peaks move to longer wavelengths when the temperature changes small, and moisture in the filters will release, to cause the peaks to move to shorter wavelengths, when the temperature changes greatly [1].
References [1] Yun Cui, Mianjun Ma, Yuqing Xiong, Duoshu Wang and Liangfu Huang: Vacuum & Cryogenics Vol.10 No.2 (2004), p. 75-81 In Chinese [2] Yongcheng Wang, Yuanyuan Dang, Shuyan Xu and Kefei Song: Optics and Precision Engineering Vol.18 No.6 (2010), p. 1333-1339 In Chinese [3] Fuyi Huang, Jingyi Wu, Ruzhu Wang and Sheng Li: Journal of Shanghai Jiaotong University No.1 (2009), p. 60-65 In Chinese [4] Hongfei Nie, Xiaoping Li and Yan He: Chinese Journal of Mechanical Engineering No.2 (2009), p. 53-59 In Chinese [5] Jietian Zhang, Hongbo Jia and Lei Ren: Journal of Transducer Technology Vol.21 No.12 (2002), p. 13-14 In Chinese [6] Haitao Qin, Chenyang Xue, Li Qin, Binzhen Zhang and Youchun Ma: Instrument Technique and Sensor No.1 (2007), p. 39-41 In Chinese
Online since: August 2010
Authors: Xin Li Tian, Jun Fei Yang, Fang Guo, Bao Guo Zhang
The
workpiece is 60×30×10mm block and the materials are Si3N4 ceramics and Al2O3 ceramics.
The workpiece materials are Si3N4 and Al2O3.
The mechanism of micro-detonation arc generation and material removal of different materials are studied.
High temperature makes materials melting (for Al2O3) or decomposing (for Si3N4) and the intensive impact effect throws materials out from pits.
References [1] Xinli Tian et al., "The new technology of engineering ceramic machining by electrode micro-detonation", Materials Science Forum, vol 626-627, 2009, p. 565-570
The workpiece materials are Si3N4 and Al2O3.
The mechanism of micro-detonation arc generation and material removal of different materials are studied.
High temperature makes materials melting (for Al2O3) or decomposing (for Si3N4) and the intensive impact effect throws materials out from pits.
References [1] Xinli Tian et al., "The new technology of engineering ceramic machining by electrode micro-detonation", Materials Science Forum, vol 626-627, 2009, p. 565-570
Online since: October 2012
Authors: Hong Zhu Quan
Using the CCPs for civil engineering work, Pozzolanic reactions are very important character with hydration materials, but to measure Pozzolanic reaction by mortar test is necessary to wait very long term, waiting the new method of determine the Pozzolanic reactions.
So, chemical and mineralogical investigations were carried out on these inorganic materials.
In this study, entrained flow gasifiers, which work at high temperatures and produce a vitreous slag, such as IGCC is a high efficiency power generation technology which gasifies coal to be used as the fuel for gas turbines, are the target materials.
Acknowledgements This research is supported by the Basic Research Projects of Qingdao Municipal Science and Technology Plan (No. 10-3-4-5-1-jch).
The Open Civil Engineering Journal, 2011, 5, 124-131 [2] Hemmings et al, On the glass in coal ashes, Materials Research Society Symp.
So, chemical and mineralogical investigations were carried out on these inorganic materials.
In this study, entrained flow gasifiers, which work at high temperatures and produce a vitreous slag, such as IGCC is a high efficiency power generation technology which gasifies coal to be used as the fuel for gas turbines, are the target materials.
Acknowledgements This research is supported by the Basic Research Projects of Qingdao Municipal Science and Technology Plan (No. 10-3-4-5-1-jch).
The Open Civil Engineering Journal, 2011, 5, 124-131 [2] Hemmings et al, On the glass in coal ashes, Materials Research Society Symp.
Online since: May 2007
Authors: Jin Ling Zhang, She Bin Wang, Ming Zhao Li, Xu Guang Liu, Bing She Xu
Change of Inclusion and Mechanical Properties of Magnesium Alloy
During Vacuum Melting
Jinling Zhang 1,2, Shebin Wang 1,2, Mingzhao Li 1,2,
Xuguang Liu 1,3, Bingshe Xu
1,2*
1
Key Laboratory of Interface Science and Engineering in Advanced Materials of Taiyuan University
of Technology, Ministry of Education, Taiyuan 030024, China
1
College of Materials Science and Engineering, Taiyuan University of Technology,
Taiyuan 030024, China
3
College of Chemistry and Chemical Engineering, Taiyuan University of Technology,
Taiyuan 030024, China
Key words�Magnesium alloy, Vacuum Melting, Inclusion, Mechanical properties
Abstract� Rare earth was added in foundry magnesium alloy in vacuum melting.
Firstly, the sidewall of the furnace and non-corrosive steel crucible were cleaned, into which the raw materials were put.
Thirdly, the raw materials were heated up to 720�.
A little coated La was added and the materials were stirred thoroughly and deposited for 10 min.
The remained elements of C, O can be supposed to be carried in by raw materials.
Firstly, the sidewall of the furnace and non-corrosive steel crucible were cleaned, into which the raw materials were put.
Thirdly, the raw materials were heated up to 720�.
A little coated La was added and the materials were stirred thoroughly and deposited for 10 min.
The remained elements of C, O can be supposed to be carried in by raw materials.
Online since: May 2012
Authors: Lu Yan Sui, Dai Yong Jia, Liang Kai Fan, Jin Sheng Wang
Sphere method to measure the thermal conductivity material is based on one-dimensional steady-state heat conduction process of the thickness spherical wall, it is particularly suitable for loose granular material.
Fig 3 shows the drying oven, which is using for drying the testing material.
The testing material should be evenly filled the cavity.
JOURNAL OF SOUTHEAST UNIVERSITY(Natural Science Edition), 2009, 39(2): 276~281
(Urban Science Edition),2008, 25(3): 157~161.
Fig 3 shows the drying oven, which is using for drying the testing material.
The testing material should be evenly filled the cavity.
JOURNAL OF SOUTHEAST UNIVERSITY(Natural Science Edition), 2009, 39(2): 276~281
(Urban Science Edition),2008, 25(3): 157~161.