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Online since: August 2014
Authors: Sheng Gao Cheng, Tao Wang, Xiang Wen Zhang
Application of Tracer Test in Survey of Hydraulic Connection Between Water Gushing and Fracture Water in Karst Tunnel -
Taking Zhongjiashan As An Example
Xiangwen Zhang1,a,Tao Wang1,b,Shenggao Cheng*,c
1 China University of Geosciences and Environmental Science, HuBei Wuhan 430074, China
* China University of Geosciences and Environmental Science, HuBei Wuhan 430074, China
a874627853@qq.com, b12736979@qq.com, cchengsg@cug.edu.cn
Keywords: Groundwater tracer test; Supply source; Fluorescein sodium; Fluorescent whitening agent; Rhodamine
Abstract.The field tracer test is dropping quantitative tracer materials in the entrance of ponor upstream and to monitor online concentration of tracer materials in the main export of underground river downstream, and then deduce the type of groundwater pipe and the source of supply according to the concentration.
It does not involve in any physical and chemical reaction with other environmental materials and cannot be easily biodegraded; (4) it is not easy to be intervened by other substances in the groundwater, but easy to be tested by instrument detection.
Journal of Radio analytical and Nuclear Chemistry,2003,257(1):11-16
Research on application of tracer experiment analysis method to water hazards management in underground engineering[J].Chinese Journal of Rock Mechanics and Engineering.2012,31(4):814-821.
Tracer tests to determine the connectivity of karst water runoff channel applications[J] Earth Journal .2013,21(7):74-76.
It does not involve in any physical and chemical reaction with other environmental materials and cannot be easily biodegraded; (4) it is not easy to be intervened by other substances in the groundwater, but easy to be tested by instrument detection.
Journal of Radio analytical and Nuclear Chemistry,2003,257(1):11-16
Research on application of tracer experiment analysis method to water hazards management in underground engineering[J].Chinese Journal of Rock Mechanics and Engineering.2012,31(4):814-821.
Tracer tests to determine the connectivity of karst water runoff channel applications[J] Earth Journal .2013,21(7):74-76.
Online since: February 2007
Authors: Tibor Czigány, Zoltán Mezey
However, these fibers are very
suitable for reinforcing other materials as well.
Structural materials with good mechanical properties can be made this way, with much less risk for the environment, than in case of glass fiber reinforced polymer composites [5].
Materials and methods The percentage of thermoplastic polymers used as a matrix for natural fiber reinforced composites is increasing.
Journal of Materials Science 36 (2001) 2107-2131
Journal of Materials Science 35 (2000) 293298
Structural materials with good mechanical properties can be made this way, with much less risk for the environment, than in case of glass fiber reinforced polymer composites [5].
Materials and methods The percentage of thermoplastic polymers used as a matrix for natural fiber reinforced composites is increasing.
Journal of Materials Science 36 (2001) 2107-2131
Journal of Materials Science 35 (2000) 293298
Online since: September 2014
Authors: Mohammed Rafiq Abdul Kadir, Zainal Anisah, Naznin Sultana
It is normally found in wood, cotton, hemp and other plant-based materials [11].
Materials and Methods Materials: CA (white powder; molecular weight of 50 000), the solvents used in this study were glacial acetic acid and acetone were supplied by Sigma Aldrich Co., USA.
Ramkumar, Electrospinning of nanofibers, Journal of Applied Polymer Science, 96(2) (2005), p. 557-569
Park, Electrospinning of ultrafine cellulose acetate fibers: Studies of new solvent system and deacetylation of ultrafine cellulose acetate fibers, Journal of Polymer Science Part B: Polymer Physics, 42 (2004), p. 5-11
Uyar, Electrospun porous cellulose acetate fibers from volatile solvent mixture, Materials Letters, 65(14) (2011), p. 2291-2294
Materials and Methods Materials: CA (white powder; molecular weight of 50 000), the solvents used in this study were glacial acetic acid and acetone were supplied by Sigma Aldrich Co., USA.
Ramkumar, Electrospinning of nanofibers, Journal of Applied Polymer Science, 96(2) (2005), p. 557-569
Park, Electrospinning of ultrafine cellulose acetate fibers: Studies of new solvent system and deacetylation of ultrafine cellulose acetate fibers, Journal of Polymer Science Part B: Polymer Physics, 42 (2004), p. 5-11
Uyar, Electrospun porous cellulose acetate fibers from volatile solvent mixture, Materials Letters, 65(14) (2011), p. 2291-2294
Online since: September 2013
Authors: Hang Yu, Jing Feng Bai
Introduction
Sewage diffusions is a new material which is used to marine environmental protection.
Research of environmental Sciences. 1994,7(5):49-52
Hydraulic journal.1993,6
Marine environmental Science. 2000,19(4):41-45
Advances in water sciences. 1995,6(3):176-181
Research of environmental Sciences. 1994,7(5):49-52
Hydraulic journal.1993,6
Marine environmental Science. 2000,19(4):41-45
Advances in water sciences. 1995,6(3):176-181
Online since: December 2013
Authors: Lei Deng, An Wen Wang, Liu Wei Mao
The material used in the calculations is taken to be stainless steel that has substantial strain hardening and moderate strain rate sensitivity [8].
Stress-strain curves are plotted in Fig. 2, the relation between true stress and true strain is taken to be strictly bilinear for each value of plastic strain rate .The relative density of the square honeycomb core, , defined as the ratio of average density of the core to the density of material .
The dynamic responses of the square honeycomb sandwich plates are compared with solid plates of the same material and equal mass per unit area subjected to impulse loads.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (11172330) and Doctor Innovation Fund of Naval University of Engineering (HGYJSCXJJ2012005).
References [1] Z.Y.Xue, J.W.Hutchinson: International Journal of Mechanical Sciences Vol.45 (2003), P. 687-705 [2] Z.Y.Xue, J.W.Hutchinson: International Journal of Impact Engineering Vol.30 (2004), P. 1283-1305 [3] J.W.Hutchinson, Z.Y.Xue: International Journal Mechanical Sciences Vol.47 (2005), P. 545-569 [4] Z.Y.Xue, J.W.Hutchinson: International Journal for Numerical Methods in Engineering Vol.65 (2006), P. 2221-2245 [5] N.G.Wadley, K.P.Dharmasena, et al: Journal of Mechanics of Materials and Structures Vol.2 (2007), P. 2025-2048 [6] G.J.Mcshane, V.S.Deshpande,et al: International Journal of Impact Engineering Vol.37 (2010), P. 1138-1149 [7] K.P.Dharmasena, N.G.Wadley,et al: International Journal of Impact Engineering Vol.38 (2011), P. 275-289 [8] K.P.Dharmasena, N.G.Wadley,et al: International Journal of Impact Engineering Vol.35 (2008), P. 1063-1074 [9] ABAQUS/Explicit User’s Manual.
Stress-strain curves are plotted in Fig. 2, the relation between true stress and true strain is taken to be strictly bilinear for each value of plastic strain rate .The relative density of the square honeycomb core, , defined as the ratio of average density of the core to the density of material .
The dynamic responses of the square honeycomb sandwich plates are compared with solid plates of the same material and equal mass per unit area subjected to impulse loads.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (11172330) and Doctor Innovation Fund of Naval University of Engineering (HGYJSCXJJ2012005).
References [1] Z.Y.Xue, J.W.Hutchinson: International Journal of Mechanical Sciences Vol.45 (2003), P. 687-705 [2] Z.Y.Xue, J.W.Hutchinson: International Journal of Impact Engineering Vol.30 (2004), P. 1283-1305 [3] J.W.Hutchinson, Z.Y.Xue: International Journal Mechanical Sciences Vol.47 (2005), P. 545-569 [4] Z.Y.Xue, J.W.Hutchinson: International Journal for Numerical Methods in Engineering Vol.65 (2006), P. 2221-2245 [5] N.G.Wadley, K.P.Dharmasena, et al: Journal of Mechanics of Materials and Structures Vol.2 (2007), P. 2025-2048 [6] G.J.Mcshane, V.S.Deshpande,et al: International Journal of Impact Engineering Vol.37 (2010), P. 1138-1149 [7] K.P.Dharmasena, N.G.Wadley,et al: International Journal of Impact Engineering Vol.38 (2011), P. 275-289 [8] K.P.Dharmasena, N.G.Wadley,et al: International Journal of Impact Engineering Vol.35 (2008), P. 1063-1074 [9] ABAQUS/Explicit User’s Manual.
Online since: August 2014
Authors: Martin Zachar, Andrea Majlingová, Eva Ružinská, Iveta Mitterová
ISBN 978-80-7366-090-1
[2] GALLA, Š. – IVANOVIČOVÁ, M., 2013: Assessment of fire risk of selected agglomerated wooden materials.
In: Research Journal of Recent Sciences, 2013, Vol. 2 (7), p. 43-47.
In: Fire Safety Journal.
In: Research journal of recent sciences. 2013, Vol. 2, no. 12 (2013), p. 80-82.
[10] OSVALD, A. a kol., 2009: Evaluation of materials and structures for fire protection needs.
In: Research Journal of Recent Sciences, 2013, Vol. 2 (7), p. 43-47.
In: Fire Safety Journal.
In: Research journal of recent sciences. 2013, Vol. 2, no. 12 (2013), p. 80-82.
[10] OSVALD, A. a kol., 2009: Evaluation of materials and structures for fire protection needs.
Online since: June 2012
Authors: Zhen Zhang, Fang Liu
Application of Wavelet Analysis Technique in the Life Sign Detection below Solid Material
Zhang Zhen1, a, Liu Fang2,b
1Zhengzhou Institute of Aeronautical Industry Management, China
2Henan Medical College for Staff and Workers, China
adeepwhitezorro@163.com, bsincerelf@163.com
Keywords: solid material; signal de-nosing; wavelet transform; threshold estimation; life sign detection.
In life sign detection below solid material, radar echo signal is very weak and hard to extract.
The study on detection of the life signals of human subject based on Micropower UWB radar, Chinese Medical Equipment Journal, Vol 26, No. 2, pp. 15-17, Feb. 2005
Theory and Application of Wavelet, Science Publishing House,2004.
In life sign detection below solid material, radar echo signal is very weak and hard to extract.
The study on detection of the life signals of human subject based on Micropower UWB radar, Chinese Medical Equipment Journal, Vol 26, No. 2, pp. 15-17, Feb. 2005
Theory and Application of Wavelet, Science Publishing House,2004.
Online since: July 2014
Authors: Miao Ma, Xin Rui Zheng, Zheng Yu Wu, Xiao Xiao Hu, Jian Xiong Liu
Doped TiO2 nanotube for lithium ion battery
Xiaoxiao Hu1,a, Jianxiong Liu1,b*, Zhengyu Wu2,b, Xinrui Zheng1,c, Miao Ma1,d,
1Faculty of Materials Science and Engineering, 2Faculty of science
Kunming University of Science and Technology, Kunming 650093, China
ahbyshxx@163.com, bljx5192665@163.com, bWUZY501@163.com, czxr6684119@126.com, dmamiaokunming@163.com
Keywords: TiO2 nanotube, lithium ion battery, dope
Abstract.
Recently, studies exploring new electrode materials for LIBs have focused on reducing the size of materials to nanoscale.
However, TiO2 is a kind of semiconductor materials and it has a wide band gap (Anatase: 3.2eV, Rutile: 3.0eV), resulting in poor electrical conductivity.
However, the initial discharge capacity of all the coated materials suffered some loss in contrast to the uncoated TNTs.
Kim: Materials Chemistry and Physics 137 (2012) 169e176 [13] S.J.
Recently, studies exploring new electrode materials for LIBs have focused on reducing the size of materials to nanoscale.
However, TiO2 is a kind of semiconductor materials and it has a wide band gap (Anatase: 3.2eV, Rutile: 3.0eV), resulting in poor electrical conductivity.
However, the initial discharge capacity of all the coated materials suffered some loss in contrast to the uncoated TNTs.
Kim: Materials Chemistry and Physics 137 (2012) 169e176 [13] S.J.
Online since: April 2013
Authors: K. Praveen, R. Praveen Babu
Y (2002) ‘Wear Patterns and Mechanisms of Cutting Tools in High-Speed Face Milling’ Shandong – Journals of Materials Processing Technology 129, pp.222-226
Shareef Iqbal (1995) ‘Machinability Comparison of Casting Methods’ Peoria – Journal of Materials Processing Technology 52, pp.174-191
Y Steven (1996) ‘Three Dimensional Cutting Force Analysis in End Milling’ Atlanta – Journal of Mechanical Science, Vol.38, No.3, pp.259-269
W (2007) ‘Analytical Investigations Concerning the Wear Behaviors of Cutting Tools Used for Machining of Compacted Graphite & Grey Cast Iron’ International Journal of Refractory Metals & Hard Materials, Vol.51, pp.241-251
Seker Ulvi and Hasirci Hasan (2006) ‘Evaluation of Machinability of Austempered Ductile Irons in Terms of Cutting Forces And Surface Quality’ Turkey – Journal of Materials Processing Technology 173, pp.260-268
Shareef Iqbal (1995) ‘Machinability Comparison of Casting Methods’ Peoria – Journal of Materials Processing Technology 52, pp.174-191
Y Steven (1996) ‘Three Dimensional Cutting Force Analysis in End Milling’ Atlanta – Journal of Mechanical Science, Vol.38, No.3, pp.259-269
W (2007) ‘Analytical Investigations Concerning the Wear Behaviors of Cutting Tools Used for Machining of Compacted Graphite & Grey Cast Iron’ International Journal of Refractory Metals & Hard Materials, Vol.51, pp.241-251
Seker Ulvi and Hasirci Hasan (2006) ‘Evaluation of Machinability of Austempered Ductile Irons in Terms of Cutting Forces And Surface Quality’ Turkey – Journal of Materials Processing Technology 173, pp.260-268
Online since: November 2014
Authors: Mim Mim Lim, Lor Huai Chong, Naznin Sultana
Materials and Methods
Materials.
Ramakrishna, Interaction of Cells and Nanofiber Scaffolds in Tissue Engineering, Journal of Biomedical Materials Research Part B: Applied Biomaterial. 84B (2008) 34-48
Ramakrishna, Interaction of Cells and Nanofiber Scaffolds in Tissue Engineering, Journal of Biomedical Materials Research Part B: Applied Biomaterial. 84B (2008) 34-48
Hutmacher, The return of a forgotten polymer-Polycarprolactone in 21st century, Progress in Polymer Science. 35 (2010) 1217-1256
Jansen, The performance of dental pulp stem cells on nanofibrous PCL/gelatin/nHA scaffolds, Journal of Biomedical Materials Research Part A. 93A (2010) 247-257
Ramakrishna, Interaction of Cells and Nanofiber Scaffolds in Tissue Engineering, Journal of Biomedical Materials Research Part B: Applied Biomaterial. 84B (2008) 34-48
Ramakrishna, Interaction of Cells and Nanofiber Scaffolds in Tissue Engineering, Journal of Biomedical Materials Research Part B: Applied Biomaterial. 84B (2008) 34-48
Hutmacher, The return of a forgotten polymer-Polycarprolactone in 21st century, Progress in Polymer Science. 35 (2010) 1217-1256
Jansen, The performance of dental pulp stem cells on nanofibrous PCL/gelatin/nHA scaffolds, Journal of Biomedical Materials Research Part A. 93A (2010) 247-257