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Online since: February 2014
Authors: Xin Lin He, Wen Xin Yang, Shuang Dui Xu, Si Chen, Guang Yang, Jiang Chun Chen, Cui Wang
Because the Granier probe is sensitive to the change of temperature, the probes were external packaged radiation material to reduce the thermal radiation to probe the interference, at the same time it can prevent rain immersion effect to guarantee the determination results from the influence of a certain extent.
Acknowledgements We acknowledge the support from the national natural science fund project (U1203282) (51269026) (41361096), National Basic Research Program of China (2011CB411905); Key Project of Chinese National Programs for Fundamental Researchand Development (2010CB951004); International cooperation project of Bingtuan (2012BC004); Shihezi University Outstanding Young project(2012ZRKXJQ08),the scientific research and innovation projects of graduate students in xinjiang (XJGRI2013065).
References [1] Huizhen Sun, Xiaofeng Zhou, Shaozhong Kang Research advance in application of heat technique in studying stem sap flow, CHINESE J0URNAL 0F APPLIED EC0LOGY,Jun.2004,15(6):1074~1078 [2] Guangde Li, Liming Jia, Junjie Kong Advances in Thormal Techniques on Stem Sap Flow, Journal of Northwest Forestry University, 2008,23(3): 94-100 [3] Famin Liu Determining Sap Flow in Trunk of Aleppo Pine by Improved Heat Pulse Method, JOURNAL OF GANSU AGRICULTURAL UNIVERSITY, Jun. 1996 [4] Yan Gao, Rumin Zhang, Jing Liu A study on volume and velocity of stem sap f low of Populus popularp’s by heat-pulse technique,Acta Bot.
Sin.,2001,21(4):644—649 [5] Huatian Wang, Lvyi Ma MEASUREMENT OF WHOLE TREE S WATER CONSUMPTION WITH THERMAL DISSIPATION SAP FLOW PROBE ( TDP), Acta Phytoecologica Sinica, 2002,26(6)661~667 [6]Mukui Yu, Zhilin Jiang, Xiaozhen Lu, Yimin Hu, Yonglin Zhu A Study on the Stem Sap Flow of Pinus taeda, Journal of Nanjing Forestry University( Natural Sciences Edition), May. 2003 [7] Lishui Nie, Jiyue Li Research on the rate of stem sap flow in Pinus tabulaeformis by using TDP method, JOURNAL OF BEIJING FORESTRY UNIVERSITY, Nov. 2004 [8] Xiaoyu Zhang, Jiadong Gong Study on volume and velocity of stem sap flow of Haloxylon ammodendron by heat-pulse technique, Acta Bot.
Sin., 2004,24(12):2250—2254 [9] Changming Ma, Wei Guan, Bing Ye, Yuxin Yuan, Jinfeng Wang, Shumei Li Measurement of the sapwood flow of Populus davidiana with thermal dissipation sap flow proble ( TDP), JOURNAL OF AGRICULT URAL UNIVERSIT Y OF H EBE I, Jan. 2005 [10] Youyan Zhang, Zefu Zhou, Hongzhong Dang, Wei Li A Study on the Sap Flow of Pinus Sylvestris var. mongolica with Thermal Dissipation Probe, Research of Soil and Water Conservation, Aug. 2006 [11] Haitao Li, Le Xiang, Jun Xia, Yaoming Lin,Tao Liang Applying the Heat Dissipation Technique to Study the Sap Flow of Pinus elliottii in the Red Earth Area of Subtropical China, SCIENTIA SILVAE SINICAE, Oct. 2006 [12] Zhihui Zhang, Xuexiang Chang, Wenzhi Zaho Comparison of Two Sap Flow Measure Methods , JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY, Aug. 2009 [13]Granier A.
Acknowledgements We acknowledge the support from the national natural science fund project (U1203282) (51269026) (41361096), National Basic Research Program of China (2011CB411905); Key Project of Chinese National Programs for Fundamental Researchand Development (2010CB951004); International cooperation project of Bingtuan (2012BC004); Shihezi University Outstanding Young project(2012ZRKXJQ08),the scientific research and innovation projects of graduate students in xinjiang (XJGRI2013065).
References [1] Huizhen Sun, Xiaofeng Zhou, Shaozhong Kang Research advance in application of heat technique in studying stem sap flow, CHINESE J0URNAL 0F APPLIED EC0LOGY,Jun.2004,15(6):1074~1078 [2] Guangde Li, Liming Jia, Junjie Kong Advances in Thormal Techniques on Stem Sap Flow, Journal of Northwest Forestry University, 2008,23(3): 94-100 [3] Famin Liu Determining Sap Flow in Trunk of Aleppo Pine by Improved Heat Pulse Method, JOURNAL OF GANSU AGRICULTURAL UNIVERSITY, Jun. 1996 [4] Yan Gao, Rumin Zhang, Jing Liu A study on volume and velocity of stem sap f low of Populus popularp’s by heat-pulse technique,Acta Bot.
Sin.,2001,21(4):644—649 [5] Huatian Wang, Lvyi Ma MEASUREMENT OF WHOLE TREE S WATER CONSUMPTION WITH THERMAL DISSIPATION SAP FLOW PROBE ( TDP), Acta Phytoecologica Sinica, 2002,26(6)661~667 [6]Mukui Yu, Zhilin Jiang, Xiaozhen Lu, Yimin Hu, Yonglin Zhu A Study on the Stem Sap Flow of Pinus taeda, Journal of Nanjing Forestry University( Natural Sciences Edition), May. 2003 [7] Lishui Nie, Jiyue Li Research on the rate of stem sap flow in Pinus tabulaeformis by using TDP method, JOURNAL OF BEIJING FORESTRY UNIVERSITY, Nov. 2004 [8] Xiaoyu Zhang, Jiadong Gong Study on volume and velocity of stem sap flow of Haloxylon ammodendron by heat-pulse technique, Acta Bot.
Sin., 2004,24(12):2250—2254 [9] Changming Ma, Wei Guan, Bing Ye, Yuxin Yuan, Jinfeng Wang, Shumei Li Measurement of the sapwood flow of Populus davidiana with thermal dissipation sap flow proble ( TDP), JOURNAL OF AGRICULT URAL UNIVERSIT Y OF H EBE I, Jan. 2005 [10] Youyan Zhang, Zefu Zhou, Hongzhong Dang, Wei Li A Study on the Sap Flow of Pinus Sylvestris var. mongolica with Thermal Dissipation Probe, Research of Soil and Water Conservation, Aug. 2006 [11] Haitao Li, Le Xiang, Jun Xia, Yaoming Lin,Tao Liang Applying the Heat Dissipation Technique to Study the Sap Flow of Pinus elliottii in the Red Earth Area of Subtropical China, SCIENTIA SILVAE SINICAE, Oct. 2006 [12] Zhihui Zhang, Xuexiang Chang, Wenzhi Zaho Comparison of Two Sap Flow Measure Methods , JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY, Aug. 2009 [13]Granier A.
Online since: February 2026
Authors: Boonsak Techo, Tanapak Metanawin, Siripan Metanawin
Experimental
Materials.
Applied Surface Science. 256 (2010) 6859-6864
Progress in Polymer Science. 31 (2006) 603-632
Journal of Photochemistry and Photobiology C: Photochemistry Reviews. 1 (2000) 1-21
Polymer Engineering & Science. 64 (2024) 2107-2120
Applied Surface Science. 256 (2010) 6859-6864
Progress in Polymer Science. 31 (2006) 603-632
Journal of Photochemistry and Photobiology C: Photochemistry Reviews. 1 (2000) 1-21
Polymer Engineering & Science. 64 (2024) 2107-2120
Online since: December 2012
Authors: Xiao Ming Yang, Bin Li, Qiang Li, An Ding Liu
Based on the studies on historical materials and archeological findings of the looms in ancient China, we found that there were two paths in the development process of the looms in ancient China.
Based on historical materials and archeological discoveries of the looms, we find that the treadle looms have been created in the Han Dynasty.
Through studying these materials, we believe that the treadle loom can be divided into three types
Based on historical materials and the textile archeological discoveries, we find that the looms have developed along two paths in ancient China.
Journal of China Textile University, Vol.14 (1997), P.63
Based on historical materials and archeological discoveries of the looms, we find that the treadle looms have been created in the Han Dynasty.
Through studying these materials, we believe that the treadle loom can be divided into three types
Based on historical materials and the textile archeological discoveries, we find that the looms have developed along two paths in ancient China.
Journal of China Textile University, Vol.14 (1997), P.63
Online since: August 2011
Authors: Hui Fang Li, Xiao Dong Yu, Cai Fu Qian
Fig. 2 Tube-side pass arrangement on the tubesheet
In this study, the material of the tubesheet is the low alloy steel 16Mn and the material of the tubes is the low carbon steel No. 10 steel.
These materials are most commonly used to construct heat exchangers in China.
Acknowledgement This work is supported by the Beijing Natural Science Foundation (Grant No. 3002009) and China Petroleum & Chemical Corporation (Contract No. 308036).
Advanced Materials Research, Vol 201-203(2011), p 302-307, Advanced Manufacturing Systems. [2] M.D.Xue , Q.S.Wu.
Journal of Central south university of technology (English Edition), Vol 12 (2005) , p. 709 [4] Yoo B., Kulak, Ronald F., Yun-Jae.Kim Fourteenth International Conference on Nuclear Engineering 2006, ICONE 14, July 17, 2006 - July 20, 2006 [5] H.Y.Yang , J.N.Cai , Q.X.Zhang , S.X.Li.
These materials are most commonly used to construct heat exchangers in China.
Acknowledgement This work is supported by the Beijing Natural Science Foundation (Grant No. 3002009) and China Petroleum & Chemical Corporation (Contract No. 308036).
Advanced Materials Research, Vol 201-203(2011), p 302-307, Advanced Manufacturing Systems. [2] M.D.Xue , Q.S.Wu.
Journal of Central south university of technology (English Edition), Vol 12 (2005) , p. 709 [4] Yoo B., Kulak, Ronald F., Yun-Jae.Kim Fourteenth International Conference on Nuclear Engineering 2006, ICONE 14, July 17, 2006 - July 20, 2006 [5] H.Y.Yang , J.N.Cai , Q.X.Zhang , S.X.Li.
Online since: May 2011
Authors: Mohammed Y. Fattah, Firas A. Salman, Bestun J. Nareeman
The stress-strain or constitutive relationship for a material depends on many factors, including the homogeneity, isotropy and continuity of the body material, its reaction to loading over a period of time and the rate and magnitude of loading.
If, however, the unit under load is large enough and the environmental and loading conditions are defined with certain limits, it is possible to assume that soils under load can be idealized and treated as linear elastic or nonlinear elastic, and perfectly plastic or work-hardening plastic materials for the purpose of stress and strain analysis, thus providing the necessary stress-strain relationship for the solution of an idealized soil mechanics problem [2].
Y., Soil Plasticity, Elsevier Science Publishers Company INC, New York, U.S.A. (1985)
S., Material model for granular soils.
Journal of Geotechnical and Environmental, ASCE, Vol. 102 (1971), pp. 122-143
If, however, the unit under load is large enough and the environmental and loading conditions are defined with certain limits, it is possible to assume that soils under load can be idealized and treated as linear elastic or nonlinear elastic, and perfectly plastic or work-hardening plastic materials for the purpose of stress and strain analysis, thus providing the necessary stress-strain relationship for the solution of an idealized soil mechanics problem [2].
Y., Soil Plasticity, Elsevier Science Publishers Company INC, New York, U.S.A. (1985)
S., Material model for granular soils.
Journal of Geotechnical and Environmental, ASCE, Vol. 102 (1971), pp. 122-143
Online since: April 2012
Authors: Jian Hua Liu
Forming technology analysis
The part needed to forming was shown in figure 1, which materials is Q235 steel, and sheet thickness is 3 mm.
The workpiece is a connection piece belonging to typical of cutting down raw materials.
(mm)[5] (1) There, F is blanking force, N; k1 is fixed number of concave die materials,k1 is equal to 1.3 for alloy tool steel; k2 is fixed number of concave die around the length, k2 is equal to 1.37 in the design.
Yellowstone higher school journal, Vol.29(1996),p.49
Cold stamping and mold design.( Shandong science and technology press,China 1990).
The workpiece is a connection piece belonging to typical of cutting down raw materials.
(mm)[5] (1) There, F is blanking force, N; k1 is fixed number of concave die materials,k1 is equal to 1.3 for alloy tool steel; k2 is fixed number of concave die around the length, k2 is equal to 1.37 in the design.
Yellowstone higher school journal, Vol.29(1996),p.49
Cold stamping and mold design.( Shandong science and technology press,China 1990).
Online since: October 2011
Authors: Hong Guo, Hai Long Zhang
The material made of the mast is steel, and was treated as isotropic perfectly elastic material following the generalized Hook’s law.
The stresses distributed on the steel tubes are relatively small, far below the material yield strength.
The maximum equivalent stress is far below the material yield strength, and the mast in drilling condition is safe.
Tham: International Journal of Rock Mechanics & Mining Science, Vol. 41 (2004), p. 573
Conference on Dredging and Dredged Materials Placement, Florida, (1994), p. 259
The stresses distributed on the steel tubes are relatively small, far below the material yield strength.
The maximum equivalent stress is far below the material yield strength, and the mast in drilling condition is safe.
Tham: International Journal of Rock Mechanics & Mining Science, Vol. 41 (2004), p. 573
Conference on Dredging and Dredged Materials Placement, Florida, (1994), p. 259
Online since: August 2013
Authors: Qing Bo Yang, Qiu Bo Huang, Jun Rui Song
Design of Virtual Prototype for Cold Roll Forming Machine of Side Panel of Engineering Vehicles and Numerical Simulation of the Forming Process
Qiubo Huang1, a, Junrui Song1,b and Qingbo Yang1,c
1University of Science and Technology Liaoning, Anshan, Liaoning, China
ahqb0412@126.com, b dehuaaaa@126.com, cbocaiyang1986@126.com
Keywords: Cold roll forming, Virtual prototype, Numerical Simulation
Abstract.
Since the deformation of the forming roll is very small in the process of forming, we define it as a rigid body, and choose rigid material as material model (Rigid Body).
Define material properties: density: 7850, elastic modulus: 2.1e11, Poisson ratio: 0.3.
Sheet metal is represented by a 1200mm*700mm*1.5 mm thin plate, and the material model is chosen as a bilinear kinematic hardening elastoplastic one.
Journal of Yanshan University (In Chinese), 2000, 24(1):15-18
Since the deformation of the forming roll is very small in the process of forming, we define it as a rigid body, and choose rigid material as material model (Rigid Body).
Define material properties: density: 7850, elastic modulus: 2.1e11, Poisson ratio: 0.3.
Sheet metal is represented by a 1200mm*700mm*1.5 mm thin plate, and the material model is chosen as a bilinear kinematic hardening elastoplastic one.
Journal of Yanshan University (In Chinese), 2000, 24(1):15-18
Online since: May 2013
Authors: Zhong Xia Xiang, Huan Luo, Xi Yang, Zhen Yuan Chang
The material of the frame is carbon structural steel of Q235.
According to the stress state of the bicycle, m presents material constants which value is 9.
[σ] presents the allowable stress of material, which the value is: (2-3) The maximum stress of the frame under different loads is 38.581MPa, meeting the requirement of the fatigue strength.
International Journal of Fatigue, 2002, 24 (11): 1149 -1157
[4] Lothar Issler, Wolfgang Weise, Udo Merk, Investigation of the fatigue behaviour of a mountain bike steering bar , Materialpruefung/Materials Testing, 2007, 49(1-2): 25-30 [5] ZOU Zhun,YUAN Xiang-kai,YU Mu-huo, Finite element analysis for carbon fiber bicycle frame, Design and Research[J],2011,38(9):4-7 [6] Xu Wen, the bicycle rider design method research and application considering the posture: [Master degree thesis], Tianjin: Tianjin University ,2007 (in Chinese) [7] GB 3565-2007,Safety requirements for bicycles,2005(in Chinese) [8] Department of Mechanical Parts of Tianjin University,Mechanical Parts,Tianjin:Tianjin Science and Technology Press,1983(in Chinese)
According to the stress state of the bicycle, m presents material constants which value is 9.
[σ] presents the allowable stress of material, which the value is: (2-3) The maximum stress of the frame under different loads is 38.581MPa, meeting the requirement of the fatigue strength.
International Journal of Fatigue, 2002, 24 (11): 1149 -1157
[4] Lothar Issler, Wolfgang Weise, Udo Merk, Investigation of the fatigue behaviour of a mountain bike steering bar , Materialpruefung/Materials Testing, 2007, 49(1-2): 25-30 [5] ZOU Zhun,YUAN Xiang-kai,YU Mu-huo, Finite element analysis for carbon fiber bicycle frame, Design and Research[J],2011,38(9):4-7 [6] Xu Wen, the bicycle rider design method research and application considering the posture: [Master degree thesis], Tianjin: Tianjin University ,2007 (in Chinese) [7] GB 3565-2007,Safety requirements for bicycles,2005(in Chinese) [8] Department of Mechanical Parts of Tianjin University,Mechanical Parts,Tianjin:Tianjin Science and Technology Press,1983(in Chinese)
Online since: February 2013
Authors: Ruo Mei Wu, Hai Yun Jiang, Guang Hua Chao
Fabrication of a Superhydrophobic Aluminum Alloy Surface by Phosphoric Acid-Dichromate Method
Ruomei Wu1, a*, Guanghua Chao1, b, Haiyun Jiang1, c
1 School of Packing Materials and Engineering, Hunan University of Technology, Zhuzhou,
China
acailiaodian2004@126.com, bchaoguanghua@163.com, cjhyun@163.com
Keywords: Superhydrophobic surface; Aluminum alloy; Phosphoric acid-dichromate method; Self-cleaning.
One is to produce a rough structure on a hydrophobic surface, and the other is to modify a rough surface by materials with low surface free energy [3-5].
Experimental Materials Aluminum alloy (3003) was kindly supplied by Zhuzhou electric locomotive Co., LTD.
Acknowledgments This work is supported by Hunan Science and Technology Key Project (NO. 2011FJ2009, 2012GK3085).
Yuan: Journal of Hunan University of Technology, Vol. 25 (2011), p. 5-8.
One is to produce a rough structure on a hydrophobic surface, and the other is to modify a rough surface by materials with low surface free energy [3-5].
Experimental Materials Aluminum alloy (3003) was kindly supplied by Zhuzhou electric locomotive Co., LTD.
Acknowledgments This work is supported by Hunan Science and Technology Key Project (NO. 2011FJ2009, 2012GK3085).
Yuan: Journal of Hunan University of Technology, Vol. 25 (2011), p. 5-8.