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Online since: September 2013
Authors: Zhi Ying Xu
From the perspective of perception, the warehouse management system, the label production and distribution system, along with the on-site distribution system together constitute the whole city’s perception of police equipment management information with full range, which provides the data sources for the material management of public security equipments.
Journal of Software. 2004, 12: 1822-1836 [3] Cui Wei.
[4] Dong Lifeng, The application and research of RFID middleware technology in the Internet of Things, Heilongjiang Science and Technology Information, 2010, 10:74
Journal of Software. 2004, 12: 1822-1836 [3] Cui Wei.
[4] Dong Lifeng, The application and research of RFID middleware technology in the Internet of Things, Heilongjiang Science and Technology Information, 2010, 10:74
Online since: April 2014
Authors: Zhen Yu Luo, De Yong Chen, Jun Bo Wang
A SOI-MEMS Based Resonant Barometric Pressure Sensor with Differential Output
Zhenyu Luo 1,a*, Deyong Chen 1,b and Junbo Wang 1,c
1State Key Laboratory of Transducer Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing, 100190, China
aoreilzy@gmail.com, bdychen@mail.ie.ac.cn, cjbwang@mail.ie.ac.cn
Keywords: resonant, pressure sensor, differential output, SOI wafer, sacrificial layer release.
Compared to previous designs, this new device has three points to claim. 1) The top single-crystal silicon layer of the SOI wafer was utilized to replace diffused silicon as the resonator material, featured with low residual stress and other improved mechanical properties; 2) Silicon-to-glass anodic bonding was utilized to form a sealed vacuum chamber, leading to better long-term vacuum tightness; 3) A new modified BHF solution was used as the wet etchant to etch the SiO2 sacrificial layer of the SOI wafer and release the suspended resonant beams [11].
[11] Hsieh-Shen Hsieh, et al., A Novel Stress Isolation Guard-ring Design for The Improvement of a Three-axis Piezoresistive Accelerometer, Journal of Micromechanics and Microengineering, Vol. 21, 2011, 105006
Compared to previous designs, this new device has three points to claim. 1) The top single-crystal silicon layer of the SOI wafer was utilized to replace diffused silicon as the resonator material, featured with low residual stress and other improved mechanical properties; 2) Silicon-to-glass anodic bonding was utilized to form a sealed vacuum chamber, leading to better long-term vacuum tightness; 3) A new modified BHF solution was used as the wet etchant to etch the SiO2 sacrificial layer of the SOI wafer and release the suspended resonant beams [11].
[11] Hsieh-Shen Hsieh, et al., A Novel Stress Isolation Guard-ring Design for The Improvement of a Three-axis Piezoresistive Accelerometer, Journal of Micromechanics and Microengineering, Vol. 21, 2011, 105006
Online since: October 2012
Authors: Siavash Zamiran, Hadi Ghojavand, Hamidreza Saba
Numerical Analysis of Soil Nail Walls under Seismic Condition in 3D Form Excavations
Siavash Zamiran1, a, Hadi Ghojavand 1,b, Hamidreza Saba2, c
1 Department of Civil Engineering, Science and Research Branch, Islamic Azad University, Iran
2 Assistant professor, Amirkabir University of Technology, Tehran, Iran
azamirans@gmail.com, bhadighojavand@gmail.com, chr.saba@aut.ac.ir
Keywords: Soil Nail Walls, Dynamic Analysis, Numerical Modeling
Abstract.
Out-of-balance forces at each nodal point are computed from axial forces in the reinforcement as well as shear forces contributed through shear interaction along the grout annulus. [2], [3] According to some researchers like Wei and Cheng, a thin layer of material with a thickness of 4.0 mm surrounding the nail is used to model the shearing zone between the nail and the soil that is shown in Fig. 5. [4] The shear stiffness of the shear zone (grout), Kg, can be estimated in Eq. (1).
Cheng, (2010), “Soil nailed slope by strength reduction and limit equilibrium methods”, Computers and Geotechnics journal [5] Zamiran.
Out-of-balance forces at each nodal point are computed from axial forces in the reinforcement as well as shear forces contributed through shear interaction along the grout annulus. [2], [3] According to some researchers like Wei and Cheng, a thin layer of material with a thickness of 4.0 mm surrounding the nail is used to model the shearing zone between the nail and the soil that is shown in Fig. 5. [4] The shear stiffness of the shear zone (grout), Kg, can be estimated in Eq. (1).
Cheng, (2010), “Soil nailed slope by strength reduction and limit equilibrium methods”, Computers and Geotechnics journal [5] Zamiran.
Online since: December 2011
Authors: Hua Hou, Yu Hong Zhao
Simulation for the fluctuation effect on the dendrites growth with Phase Field Method
Hua Hou1,a, Yuhong Zhao*1,b
1College of Material Science and Engineering, North University of China.
Tokunaga , H.Sakaguchi : Journal of Crystal Growth Vol. 275 (2005), p.197 List of Figures (a) Without noise (b) with noise Fig.1 Influence of noise on dendrite Fig .2Dendrite growth of Ammonium bromide [10] Fig.3 Experiment of dendrite growth with noise[10] (a) Fu =1×10-2 (b) Fu =5×10-3 (c) Fu =1×10-3 (d) Fu =5×10-4 (e) Fu =5×10-5 (f) Fu =1×10-5 Fig.4 Dendrite morphology with different fluctuation amplitude (a) Without noise (b) Phase field noise (c) Thermal noise Fig.5 Dendrite morphology with different noise Fig.6 Dendrite morphology without noise and with a=1.0 Fig.7 Dendrite morphology with a=1.0 and Fu=1×10-3 Fig.8 Dendritic tip velocity with different time Fig.9 Dendritic tip radius with different time
Tokunaga , H.Sakaguchi : Journal of Crystal Growth Vol. 275 (2005), p.197 List of Figures (a) Without noise (b) with noise Fig.1 Influence of noise on dendrite Fig .2Dendrite growth of Ammonium bromide [10] Fig.3 Experiment of dendrite growth with noise[10] (a) Fu =1×10-2 (b) Fu =5×10-3 (c) Fu =1×10-3 (d) Fu =5×10-4 (e) Fu =5×10-5 (f) Fu =1×10-5 Fig.4 Dendrite morphology with different fluctuation amplitude (a) Without noise (b) Phase field noise (c) Thermal noise Fig.5 Dendrite morphology with different noise Fig.6 Dendrite morphology without noise and with a=1.0 Fig.7 Dendrite morphology with a=1.0 and Fu=1×10-3 Fig.8 Dendritic tip velocity with different time Fig.9 Dendritic tip radius with different time
Online since: January 2012
Authors: Yong Sheng Cheng
Acknowledgment
This work was financially supported by grants from China postdoctoral science foundation (Grant No. 20090451105), the special funds of central college basic scientific research operating expenses (Grant No. 201012200210), and the postdoctoral workstation of China Tin Group Co., Ltd.
Chinese Journal of Geochemistry, vol. 12, 1993, pp. 270–288
Sulfur and lead isotope composition tracing for the sources of ore-forming material in Dachang tin-polymentallic orefield,Guangxi[J].
Chinese Journal of Geochemistry, vol. 12, 1993, pp. 270–288
Sulfur and lead isotope composition tracing for the sources of ore-forming material in Dachang tin-polymentallic orefield,Guangxi[J].
Online since: July 2013
Authors: Zhi Ying Sun, Xu Song Xu
Experiment material: Stainless steel (0Cr17Ni4Cu4Nb).
Wang, B.S.Wang, Research on AR Model Applied to Forecast Trend of Vibration Signal, J. of Tsinghua University (Science and Technology), 43(4) (2008) 13~16
Ma, A neural network approach to real-time pattern recognition, International Journal of Pattern Recognition and Artificial Intelligence. 15 (6) (2001) 937~947.
Wang, B.S.Wang, Research on AR Model Applied to Forecast Trend of Vibration Signal, J. of Tsinghua University (Science and Technology), 43(4) (2008) 13~16
Ma, A neural network approach to real-time pattern recognition, International Journal of Pattern Recognition and Artificial Intelligence. 15 (6) (2001) 937~947.
Online since: July 2013
Authors: Hong Li, Cai Xia Gao
Table1 Prototype specifications
items
value and units
items
value and units
pole pitch
39mm
PM height
7mm
slot pitch
13mm
PM length
120mm
PM material
NdFeB
PM mounted
Surface mounted
PM width
27mm
Air gap
5mm
D FMA model The 2D FMA model of the prototype is shown in Fig.1, Fig.2 and Fig.3.
Journal of Coal Science and Engineering, v 11, n 1, June, 2005, 89-92
Journal of Coal Science and Engineering, v 11, n 1, June, 2005, 89-92
Online since: August 2014
Authors: Wei Lei, Nai Jia Wang, Jing Yu Ding, Xue Mei Du
Chung - Li Hwan, Meng-Ju Lin researched on phone drop test and designed an orthogonal experiment by using Taguchi method to select suitable material of cell phone’s LCD screen to enhance its drop-resistance feature [2].
Journal of the Chinese Institute of Engineers 34.3 (2011): 337-346
Jiangsu Science & Technology Information, 01(2012), 91-92
Journal of the Chinese Institute of Engineers 34.3 (2011): 337-346
Jiangsu Science & Technology Information, 01(2012), 91-92
Online since: July 2013
Authors: Wei Liu, Yu Xia Li, Hao Ran Meng
Friction torque Measurement of Servo Mount based on Stribeck model
Wei Liu1,a,Yuxia Li2,b,Haoran Meng2,c
1College of Communication Engineering,Jinlin University, Changchun, Jilin,130022,China
2Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences , Changchun, Jilin,130033,China
alw52101630@163.com,b lyx26691023@163.com,cranokok@gmail.com
Keywords: Friction torque measurement, toque ripple, Nonlinear Curve fitting, Accelerometer
Abstract.
represents the maximum static friction, related to the material of the two contact faces.
Adaptive friction compensation with partially known dynamic friction model [J].International Journal of adaptive control and signal processing, 1997, 11.65-80
represents the maximum static friction, related to the material of the two contact faces.
Adaptive friction compensation with partially known dynamic friction model [J].International Journal of adaptive control and signal processing, 1997, 11.65-80