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Online since: February 2013
Authors: Zhi Peng Qi, Yi Liu, Jian Yin, Zhi Jian Zhou
Moreover, Mg-based metallic glasses were recently suggested to be potential candidates as hydrogen storage[1] or biomedical materials[2].
Experimental Mg, Cu, Ni and Gd with purity better than 99.9 wt.% were used as starting materials.
Loffler, MgZnCa glasses without clinically observable hydrogen evolution for biodegradable implants, Nature Materials. 8 (2009) 887-891
Masumoto, Formation, thermal-stability and and mechanical-properties of amrophous alloys in the Mg-transition metal(Ni,Cu)-alkaline-earth metal(Ca,Sr,Ba) system, Journal of Materials Science. 28 (1993) 379-383
Elsevier Science: New York, 1988, pp. 314
Experimental Mg, Cu, Ni and Gd with purity better than 99.9 wt.% were used as starting materials.
Loffler, MgZnCa glasses without clinically observable hydrogen evolution for biodegradable implants, Nature Materials. 8 (2009) 887-891
Masumoto, Formation, thermal-stability and and mechanical-properties of amrophous alloys in the Mg-transition metal(Ni,Cu)-alkaline-earth metal(Ca,Sr,Ba) system, Journal of Materials Science. 28 (1993) 379-383
Elsevier Science: New York, 1988, pp. 314
Online since: November 2016
Authors: Yong Ping Feng, Ming Xiang Deng
The piezoelectric material plays an important role in some special fields.
The two-scale method[4,5] is a analytic method which couples the macroscopic scale and the microscopic scale together, reflecting both the global mechanical behavior and the microscopic effects of different materials in cell.
Determine the properties of cell materials, compositions and interface, boundary layer; 2).
The unit cell Q in 2-dim The dielectric tensor of blank and yellow materials and the homogenization dielectric tensor computed by Eq.(5) are listed as follows: .
Cui, A two-scale finite element analysis of the thermo-elastic effects in composites, International Journal of Computational Method, Vol.11(2014), p. 1350066
The two-scale method[4,5] is a analytic method which couples the macroscopic scale and the microscopic scale together, reflecting both the global mechanical behavior and the microscopic effects of different materials in cell.
Determine the properties of cell materials, compositions and interface, boundary layer; 2).
The unit cell Q in 2-dim The dielectric tensor of blank and yellow materials and the homogenization dielectric tensor computed by Eq.(5) are listed as follows: .
Cui, A two-scale finite element analysis of the thermo-elastic effects in composites, International Journal of Computational Method, Vol.11(2014), p. 1350066
Online since: November 2011
Authors: Aphrodite Ktena
Modeling the process
Modeling of the Barkhausen Noise, nucleation, pinning and hysteresis ate the atomic level has been carried out using Random Field Ising models [20] while micromagnetic calculations [21] have been used to determine analytically or numerically simplified or more complex geometries the magnetization processes and energy landscape in a magnetic materials with imperfections.
The resulting switching field distribution is characteristic of the material and its determination via experimental measurements serves is enough to identify the model for a given material.
Kosmas, et. al.., Journal of Materials Processing technology 161, (2005) 359-362 [2] E.
Baldev, et. al., Russian Journal of Nondestructive Testing, 37(11), (2001) 789-798 [9] M.J.
Buiron, Materials Science and Engineering A359 (2003) 62-74 [15] E.
The resulting switching field distribution is characteristic of the material and its determination via experimental measurements serves is enough to identify the model for a given material.
Kosmas, et. al.., Journal of Materials Processing technology 161, (2005) 359-362 [2] E.
Baldev, et. al., Russian Journal of Nondestructive Testing, 37(11), (2001) 789-798 [9] M.J.
Buiron, Materials Science and Engineering A359 (2003) 62-74 [15] E.
Online since: July 2015
Authors: Xin Li Liang, Zheng Gen Liao, Dan Lv, Juan Luo, Xue Jing Guan
Lipid emulsions could be used as a parenteral nutrition agent lonely [1] also could be used as carrier material of drugs which have poor solubility.
Foundation item: Jiangxi province science and technology support program(No.: 2010BSB02602)Jiangxi province "outstanding engineers" training plan(zygcs003), Gan Po "555" leading talent training plan.
[2] Wang Yaming, etc, New-type drug carrier: lipid microspheres[J], Foreign Medical Sciences Section on Pharmacy. 1997, 24(5): 305-308
[3] Ye Longbin, Xi Tao, Chen Feng, etc, Protective Effect of TanshinoneⅡA Against Focal Cerebral Ischemia Reperfusion Injury in Rats [J], Journal of China Pharmaceutical University, 2004, 35(3):267-270
[6] Li Ruihuan, Wang Ling, Pharmacology study progression of tanshinone ⅡA [J], Modern Journal of Intgrated Traditional Chinese and Western Medicine, 2006, 15(23): 3303-3305
Foundation item: Jiangxi province science and technology support program(No.: 2010BSB02602)Jiangxi province "outstanding engineers" training plan(zygcs003), Gan Po "555" leading talent training plan.
[2] Wang Yaming, etc, New-type drug carrier: lipid microspheres[J], Foreign Medical Sciences Section on Pharmacy. 1997, 24(5): 305-308
[3] Ye Longbin, Xi Tao, Chen Feng, etc, Protective Effect of TanshinoneⅡA Against Focal Cerebral Ischemia Reperfusion Injury in Rats [J], Journal of China Pharmaceutical University, 2004, 35(3):267-270
[6] Li Ruihuan, Wang Ling, Pharmacology study progression of tanshinone ⅡA [J], Modern Journal of Intgrated Traditional Chinese and Western Medicine, 2006, 15(23): 3303-3305
Online since: July 2011
Authors: Jin Hong Gao
Introduction
The purpose of identification of Chinese traditional medicine is to identify whether the medicinal materials are genuine or not.
According to the compositions, structures and properties of medicinal materials, it utilizes the chemical method, instrument method or determination of physical constant to identify the authenticity of the medicinal materials.
Most of the medicinal materials are organic.
Chinese Medicinal Materials, 2006,29(7):663-665
Chinese Journal of Modern Applied Pharmacy, 2000,17(2):114-115
According to the compositions, structures and properties of medicinal materials, it utilizes the chemical method, instrument method or determination of physical constant to identify the authenticity of the medicinal materials.
Most of the medicinal materials are organic.
Chinese Medicinal Materials, 2006,29(7):663-665
Chinese Journal of Modern Applied Pharmacy, 2000,17(2):114-115
Online since: February 2013
Authors: Ying Pan, Yong Han, Xiao Feng Zhao
Fig. 6 Dai bamboo building’s ventilation cooling
Using Local Materials.
Chinese traditional dwellings use flexibly local building materials such as soil, wood, bamboo, stone, tile, reed and other local accessible materials to not only save natural resources, but take full advantage of the physical properties of these materials, adapted to local natural climatic characteristics.
Regional culture includes social attitudes, aesthetic value, life and mentality of other psychological factors, and also contains a regional geographical, ecological environment, construction materials and other material factors.
And, the use of local technologies, materials can reflect the sustainable development and other aspects.
[2] Li Zhifang,Peng Yi.Journal of Southwest Agricultural University(Social Science Edition) [J].
Chinese traditional dwellings use flexibly local building materials such as soil, wood, bamboo, stone, tile, reed and other local accessible materials to not only save natural resources, but take full advantage of the physical properties of these materials, adapted to local natural climatic characteristics.
Regional culture includes social attitudes, aesthetic value, life and mentality of other psychological factors, and also contains a regional geographical, ecological environment, construction materials and other material factors.
And, the use of local technologies, materials can reflect the sustainable development and other aspects.
[2] Li Zhifang,Peng Yi.Journal of Southwest Agricultural University(Social Science Edition) [J].
Online since: February 2012
Authors: Ming Zhou, Ming Wang, Guo Chao Qiao
Introduction
Ceramic materials have been more and more widely used in various fields due to their superior physical and thermal properties and will become one of the most potential engineering materials.
Experimental procedure and results Experimental materials were supplied by Guangzhou Shichao High Performance Ceramics Company, experimental equipments are American Hysitron high precision nanoindentation measurement system with capacities:vertical resolution is 3nN, lateral resolution is 0.5μN, maximum load is 700mN.
On the other hand, cracks propagate toward to specimen surface and produce lateral cracks, thereby materials are removed.
Acknowledgements This work is partly supported by the National Natural Science Foundation of China (NSFC) (Grant No. 51075094) References [1] Oliver WC, Pharr GM: submitted to J Mater Res. 1992; 7(6): 1564--1583 [2] X.H.
Song: submitted to Journal of Wu Han institute of technology. 1993;15(4) (In Chinese) [3] G.S.Zhang, H.Y.Jin, L.Y.Xu: submitted to Rare Matals. 2009; (005): 680-685(In Chinese) [4] W.Zhang, G.Subhash: submitted to International Journal of Solids and Structures.2001;38(34-35) 5893-5913
Experimental procedure and results Experimental materials were supplied by Guangzhou Shichao High Performance Ceramics Company, experimental equipments are American Hysitron high precision nanoindentation measurement system with capacities:vertical resolution is 3nN, lateral resolution is 0.5μN, maximum load is 700mN.
On the other hand, cracks propagate toward to specimen surface and produce lateral cracks, thereby materials are removed.
Acknowledgements This work is partly supported by the National Natural Science Foundation of China (NSFC) (Grant No. 51075094) References [1] Oliver WC, Pharr GM: submitted to J Mater Res. 1992; 7(6): 1564--1583 [2] X.H.
Song: submitted to Journal of Wu Han institute of technology. 1993;15(4) (In Chinese) [3] G.S.Zhang, H.Y.Jin, L.Y.Xu: submitted to Rare Matals. 2009; (005): 680-685(In Chinese) [4] W.Zhang, G.Subhash: submitted to International Journal of Solids and Structures.2001;38(34-35) 5893-5913
Online since: May 2011
Authors: Jun Jie Fan
High-tech is the smart application of science; while Low-tech application needs more wisdom from architects.
The first consideration of green building should be the building itself, through a rational design and spatial layout to save water, land, energy, materials and reduce pollution.
Fan: Architectural Journal(In Chinese).
Liu: Architectural Journal(In Chinese).
Oriental Publisher Center, Shanghai, China (2010) [7] H.Hong and Z.Q.Shou: Expo Science Album.
The first consideration of green building should be the building itself, through a rational design and spatial layout to save water, land, energy, materials and reduce pollution.
Fan: Architectural Journal(In Chinese).
Liu: Architectural Journal(In Chinese).
Oriental Publisher Center, Shanghai, China (2010) [7] H.Hong and Z.Q.Shou: Expo Science Album.
Online since: November 2018
Authors: Muhammad Rubayat Bin Shahadat, Tibra Das Gupta, Dip Dutta
Many researches have already been done on the investigation of crack propagation and mechanical properties under various factors in single or polycrystal metal materials.
Liang [18] investigated behavior of mode-1 crack in functionally graded materials by non-local theory solutions and presented numerical examples of the effect of crack length.
Molecular mobility is required for this plasticity which results from the dislocation motion in crystalline materials [26].
F.Hu, “MD simulation on evolution of micro structure and failure mechanism around interactional voids in pure al,” Applied Mechanics and Materials, vol. 444-445 (2014) 183–190
Jun, “ The nonlocal theory solution of a Mode-I crack in functionally graded materials,” Science in China Series E: Technological Sciences ,vol. 52 (2009), 1101-1111 [19] D.Chen and T.
Liang [18] investigated behavior of mode-1 crack in functionally graded materials by non-local theory solutions and presented numerical examples of the effect of crack length.
Molecular mobility is required for this plasticity which results from the dislocation motion in crystalline materials [26].
F.Hu, “MD simulation on evolution of micro structure and failure mechanism around interactional voids in pure al,” Applied Mechanics and Materials, vol. 444-445 (2014) 183–190
Jun, “ The nonlocal theory solution of a Mode-I crack in functionally graded materials,” Science in China Series E: Technological Sciences ,vol. 52 (2009), 1101-1111 [19] D.Chen and T.
Online since: May 2013
Authors: Chun Tang Zhang, Wan Ying Zhang
Research of Underwater Oil leak and Storage Detection Technique Based on Optical Fiber
Chuntang Zhang1, a, Wanying Zhang2,b
1 College of Automation and Electronic Engineer, Qingdao University of Science &Technology, China
2 College of Automation and Electronic Engineer, Qingdao University of Science &Technology, China
azct1999@163.com, bzwy05291989@163.com
Keywords: underwater oil storage system; optical fiber technology; wavelet transform
Abstract.
According to the feature of fiber grating[8], the petroleum solvent-sensitive material and the grating are fixed together.
Once the material is soaked in the petroleum solvent, it swells, and its expansion stress is transmitted to the fiber grating, resulting in the center wavelength drift of the reflected wave[9,10].
Bucaro, Optical fiber sensor technology, IEEE Journal of Quantum Electronics. 2 (1999) 61-62
[11] Jianwei Luo, Research on Polarization Control of Optical Fiber Sensing Technology for Pipe Leak Detection, Chinese Journal of Scientific Instrument. 31 (2010) 322-325.
According to the feature of fiber grating[8], the petroleum solvent-sensitive material and the grating are fixed together.
Once the material is soaked in the petroleum solvent, it swells, and its expansion stress is transmitted to the fiber grating, resulting in the center wavelength drift of the reflected wave[9,10].
Bucaro, Optical fiber sensor technology, IEEE Journal of Quantum Electronics. 2 (1999) 61-62
[11] Jianwei Luo, Research on Polarization Control of Optical Fiber Sensing Technology for Pipe Leak Detection, Chinese Journal of Scientific Instrument. 31 (2010) 322-325.