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Online since: June 2013
Authors: Abbas Ali Imani Fooladi, Afsaneh Amiri, Mohammad Reza Nourani, Mahmoud Azami, Bahareh Asgari
Biomimetic synthesis of bone materials is a central aim in biomaterial studies.
Materials and Methods 2.1.
Thus the scaffold materials were subjected to cytotoxic studies with CHO cells (Figure 9). 3.7.
Materials, (2009), 2 (2), 399-498
[9] R.Z LeGeros, in Hydroxyapatite and related materials, P.W.Brown, B.
Materials and Methods 2.1.
Thus the scaffold materials were subjected to cytotoxic studies with CHO cells (Figure 9). 3.7.
Materials, (2009), 2 (2), 399-498
[9] R.Z LeGeros, in Hydroxyapatite and related materials, P.W.Brown, B.
Online since: August 2013
Authors: P. Sangeetha, A. Vimala Juliet
The applied stress causes changes in the resistance of the piezoresistive material enabling the measurement of input variable.
Taking into account the boundary conditions of a cantilever (R » L), the above equation can be solved and the deflection of the cantilevers, δ can be written as, … (4) Where L is the length of the cantilever from Eq .4, it can be seen that materials with different Young Modulus values determine the deflection behavior of the cantilever where lower value yields higher deflection.
A piezoresistive material changes its electrical conductivity under stress changes.
References [1] Fritz, J. et al., 2000, ‘‘Translating Bimolecular Recognition Nanomechanics,’’ Science, 288, . 316–318 [2] Raiteri, R. et al., 1999, ‘‘Sensing of Biological Substances Based on the Bending of Micro fabricated Cantilevers,’’ Sens.
Kim, “Micromachined acoustic resonant mass sensor,” Journal of Microelectromechanical Systems (MEMS), vol. 14, pp. 699–706, August 2005
Taking into account the boundary conditions of a cantilever (R » L), the above equation can be solved and the deflection of the cantilevers, δ can be written as, … (4) Where L is the length of the cantilever from Eq .4, it can be seen that materials with different Young Modulus values determine the deflection behavior of the cantilever where lower value yields higher deflection.
A piezoresistive material changes its electrical conductivity under stress changes.
References [1] Fritz, J. et al., 2000, ‘‘Translating Bimolecular Recognition Nanomechanics,’’ Science, 288, . 316–318 [2] Raiteri, R. et al., 1999, ‘‘Sensing of Biological Substances Based on the Bending of Micro fabricated Cantilevers,’’ Sens.
Kim, “Micromachined acoustic resonant mass sensor,” Journal of Microelectromechanical Systems (MEMS), vol. 14, pp. 699–706, August 2005
Online since: November 2012
Authors: Yan Qun Wang, Bing Chen Zhang, Han Wu
Hand-painted of product design show the perspective of space with fast, simple lines, represent the material and relationship between light and dark.
They make material invisible becomes visible, and curdle the image uncertain, as to get the raw material of design [3].
Specifically, it includes moral expression on the shape, color matching, and the connection style of structure, use of materials.
Designers should pursue innovative style according to different creative objects, themes, materials, etc.
Journal of Zhangzhou Institute of Technology,2011:28
They make material invisible becomes visible, and curdle the image uncertain, as to get the raw material of design [3].
Specifically, it includes moral expression on the shape, color matching, and the connection style of structure, use of materials.
Designers should pursue innovative style according to different creative objects, themes, materials, etc.
Journal of Zhangzhou Institute of Technology,2011:28
Online since: July 2014
Authors: Xi Jun Wu
According the mastered data and materials, make the average annual surface water resources deduct the river ecological basic flow and flood discharge, take available surface water resources [4], the product of groundwater recharge and mineable coefficient is available groundwater resources, then calculate the available water resources of different regions and rivers, summarizes its characteristics and law.
The data comes from “Shaanxi Water Conservancy Statistical Yearbook” [5] and” Shaanxi Water Resources Integrated Planning” [6], also references the “Shaanxi Water Function Regionalization "and other materials.
Although regional hydrogeology condition analysis, according to the total groundwater recharge, underground water level observation, actual yield, and other material, carries on simulation and calculation, confirm the mineable coefficient, and then calculate available groundwater resources of region.
Wg,a=ρWg,r (4) Wg,a is available groundwater; ρ is groundwater mineable coefficient; Wg,r is groundwater recharge; According to relevant materials and calculation [6], the North Shaanxi annual average groundwater recharge is 1.04 billion m3, average mineable coefficient is 0.55, so the available groundwater resources in North Shaanxi is 571 million m3, including 458 million m3 of Yulin.
(in Chinese) [4] Y J Fu, J S He, D P Mu, etc, Journal of Arid Land Resources and Environment, vol. 25 (1), ( 2011) , p.107, (in Chinese) [5] Department of Water Resources of Shaanxi Province, Shaanxi Water Conservancy Statistical Yearbook(2001-2010). (2011).
The data comes from “Shaanxi Water Conservancy Statistical Yearbook” [5] and” Shaanxi Water Resources Integrated Planning” [6], also references the “Shaanxi Water Function Regionalization "and other materials.
Although regional hydrogeology condition analysis, according to the total groundwater recharge, underground water level observation, actual yield, and other material, carries on simulation and calculation, confirm the mineable coefficient, and then calculate available groundwater resources of region.
Wg,a=ρWg,r (4) Wg,a is available groundwater; ρ is groundwater mineable coefficient; Wg,r is groundwater recharge; According to relevant materials and calculation [6], the North Shaanxi annual average groundwater recharge is 1.04 billion m3, average mineable coefficient is 0.55, so the available groundwater resources in North Shaanxi is 571 million m3, including 458 million m3 of Yulin.
(in Chinese) [4] Y J Fu, J S He, D P Mu, etc, Journal of Arid Land Resources and Environment, vol. 25 (1), ( 2011) , p.107, (in Chinese) [5] Department of Water Resources of Shaanxi Province, Shaanxi Water Conservancy Statistical Yearbook(2001-2010). (2011).
Online since: January 2015
Authors: Vladimir Verstov, Antonina Judina
This is used for moving grouting material for borehole sealing and soil-removing from auger bits.
Improving technical-economical parameters for various methods of borehole drilling for construction purposes with vibration impact is related to improving the following processes: – Overcoming friction between the pipe (probe, drilling bit) and soil; – Crushing hard and coherent soil; – Removing clay particle from water-bearing layers and separating such particles from each other; – Using chemical agents for solving chemicals that colmate filters and filter zone of the water-bearing layer in water boreholes; – Fractional laying of free-flowing material for creating sand-gravel filter in the water-bearing layer; – Pumping water with particles from the borehole and pumping chemical agents behind the filter contour; – Moving soil and grouting materials.
Besides, if vibration is applied to the pipe when displacement piles are driven in, this makes it possible to efficiently compact cement mix and improve the load-bearing capacity of piles, both in the material quality and the factor related to increased lateral friction force (Fig. 2).
Conclusion The practice shows that using the vibration method allows not only increasing the labor productivity and decreasing the materials and energy consumption for various operations during construction works and boreholes drilling, but will also often make it possible to significantly change the technology and obtain new results that would not be possible using other methods than vibration.
Comparative Efficiency Investigation of Various Types of Dynamic Influences on the Dipped Pile (2013) World Applied Sciences Journal, 23(6), pp. 817–822
Improving technical-economical parameters for various methods of borehole drilling for construction purposes with vibration impact is related to improving the following processes: – Overcoming friction between the pipe (probe, drilling bit) and soil; – Crushing hard and coherent soil; – Removing clay particle from water-bearing layers and separating such particles from each other; – Using chemical agents for solving chemicals that colmate filters and filter zone of the water-bearing layer in water boreholes; – Fractional laying of free-flowing material for creating sand-gravel filter in the water-bearing layer; – Pumping water with particles from the borehole and pumping chemical agents behind the filter contour; – Moving soil and grouting materials.
Besides, if vibration is applied to the pipe when displacement piles are driven in, this makes it possible to efficiently compact cement mix and improve the load-bearing capacity of piles, both in the material quality and the factor related to increased lateral friction force (Fig. 2).
Conclusion The practice shows that using the vibration method allows not only increasing the labor productivity and decreasing the materials and energy consumption for various operations during construction works and boreholes drilling, but will also often make it possible to significantly change the technology and obtain new results that would not be possible using other methods than vibration.
Comparative Efficiency Investigation of Various Types of Dynamic Influences on the Dipped Pile (2013) World Applied Sciences Journal, 23(6), pp. 817–822
Online since: October 2022
Authors: Martin Palou, Janette Dragomirová
Generally, with a higher bulk density of the material, its shielding ability also increases.
Volume heat capacity is an inverted property of the thermal diffusivity of the material.
Thermal technical characteristics are influenced by the bulk density of the material.
Materials Today Proceedings. 2019, 3(15), 536-545.
Journal of Thermal Analysis and Calorimetry. 2020, 142, 255-266.
Volume heat capacity is an inverted property of the thermal diffusivity of the material.
Thermal technical characteristics are influenced by the bulk density of the material.
Materials Today Proceedings. 2019, 3(15), 536-545.
Journal of Thermal Analysis and Calorimetry. 2020, 142, 255-266.
Online since: November 2016
Authors: Jian Zhong Cui, Xiang Jie Wang, Li Juan Wang, Hao Zhong
Influence of Wiper Height on 7A55 Slabs
Lijuan Wang1, 2, a, Hao Zhong3,b, Xiangjie Wang1, c * and Jianzhong Cui1,d
1Key Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110819, China
2Liaoning Zhongwang Group CO., LTD, Liaoyang 111003
3Suzhou Nonferrous Metal Research Institute, LTD, Liaoyang 11100
awanglijuan@zhongwang.com, bZhong_h@sinr.cn, cWangxj@epm.neu.edu.cn, djzcui@epm.neu.edu.cn
Keywords: 7xxx series alloys, slab, crack, microstructure.
Introduction Thanks to the high strength and excellent comprehensive properties, 7A55 plate products, which has higher ratios in Zn:Mg and Cu:Mg can satisfy the comprehensive requirements on weight reduction and speed increase, is the preferred material serve for the top wing structure of air flight to stand tension and stress [1-3].
Progress in Materials Science. 53 (2008) 421–480
Journal of Materials Processing Technology. 214 (2014) 1372–1378.
Introduction Thanks to the high strength and excellent comprehensive properties, 7A55 plate products, which has higher ratios in Zn:Mg and Cu:Mg can satisfy the comprehensive requirements on weight reduction and speed increase, is the preferred material serve for the top wing structure of air flight to stand tension and stress [1-3].
Progress in Materials Science. 53 (2008) 421–480
Journal of Materials Processing Technology. 214 (2014) 1372–1378.
Online since: October 2009
Authors: Dai Zhong Su, Bao Yu Song, Qing Xiang Yang, Feng Zhang
Experimental Method
In this research, the aircraft grease 7014 (product of Chongqing Ichinotsubo) and Nano-materials
SiO2 and TiO2 (product of Tianyi Ltd, Changzhin,) were used.
References [1] Libo Wang, Ming Zhang, Xiaobo Wang and Weimin Liu: Materials Research Bulletin: Vol. 43 (2008), p.2220 [2] HuoY Q, Yan Y T and Zhai Y C: Materials Journal: Vol.18-4(2004), p.102 [3] M.
Lubrication Science: Vol.8-4(1996), p.387 [5] Wang L B, Feng D P and Liu W M.
Tribology: Vol.25-2(2005), p.107 [6] Hosoe: Material Tecnology, Vol. 18-3(2000), p. 78 [7] Zhu T B: Grease Technology Encyclopedia.
References [1] Libo Wang, Ming Zhang, Xiaobo Wang and Weimin Liu: Materials Research Bulletin: Vol. 43 (2008), p.2220 [2] HuoY Q, Yan Y T and Zhai Y C: Materials Journal: Vol.18-4(2004), p.102 [3] M.
Lubrication Science: Vol.8-4(1996), p.387 [5] Wang L B, Feng D P and Liu W M.
Tribology: Vol.25-2(2005), p.107 [6] Hosoe: Material Tecnology, Vol. 18-3(2000), p. 78 [7] Zhu T B: Grease Technology Encyclopedia.
Online since: May 2011
Authors: Li Tian, Cong Zhu
Material Constitutive Models
Concrete Model.
Table 1 Material parameters of reinforced concrete ρ0 [kg/m3] E [Pa] G [Pa] [Pa] T [Pa] EFmin 2440 35.7E9 14.86E9 105E6 10E6 0.01 Shipbuilding Steel Model.
Table 2 Material parameters of shipbuilding steel ρ [kg/m3] E [Pa] ν Yield stress [MPa] Failure strain 7800 2.06E11 0.3 235 0.15 Soil Model.
Acknowledgements This work was supported by National Natural Science Foundation of China No. 50678116, National Key Technology R&D Program No. 2006BAJ13B02, and Tianjin Municipal Major Project of Application Foundation and Frontal Technology Research No. 08JCZDJC19500.
Zheng and H.GAO: Journal of Architecture and Civil Engineering, In Chinese, Vol.24 (2007), p. 1-5 [7] American Association of State Highway and Transportation Official: Guide Specifications and Commentary for Vessel Collision Design of Highway Bridges, Washington D.C, (1991)
Table 1 Material parameters of reinforced concrete ρ0 [kg/m3] E [Pa] G [Pa] [Pa] T [Pa] EFmin 2440 35.7E9 14.86E9 105E6 10E6 0.01 Shipbuilding Steel Model.
Table 2 Material parameters of shipbuilding steel ρ [kg/m3] E [Pa] ν Yield stress [MPa] Failure strain 7800 2.06E11 0.3 235 0.15 Soil Model.
Acknowledgements This work was supported by National Natural Science Foundation of China No. 50678116, National Key Technology R&D Program No. 2006BAJ13B02, and Tianjin Municipal Major Project of Application Foundation and Frontal Technology Research No. 08JCZDJC19500.
Zheng and H.GAO: Journal of Architecture and Civil Engineering, In Chinese, Vol.24 (2007), p. 1-5 [7] American Association of State Highway and Transportation Official: Guide Specifications and Commentary for Vessel Collision Design of Highway Bridges, Washington D.C, (1991)
Online since: October 2013
Authors: Hui Chen, Bo Li, Jun Yang, Qiang Jia, Yuan Xing Li, Ming Yue Zhang
Influence of stress concentration on fatigue property of welded joints of 5083 aluminum alloy
Jun Yang a, Bo Li b, Qiang Jia c, Yuanxing Li d, Mingyue Zhang e, Hui Chen f, *
School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
a944214547@qq.com, bsanpolincoln@163.com,cjiaqiang0510@qq.com,d453117177@qq.com, e906471735@qq.com, f, *xnrpt@163.com
Keywords: 5083 aluminum alloy, welded joint, fatigue, stress concentration
Abstract.
Experimental materials and methods Experimental materials.
The QSN750 spark direct reading spectrometer for detection of 5083 aluminum alloy sheet and welding wire ER5356, material composition as shown in table 1, table 2.
Feng: The Chinese Journal of nonferrous metals, vol. 14 (2004) no. 1, p. 1895-1900
Experimental materials and methods Experimental materials.
The QSN750 spark direct reading spectrometer for detection of 5083 aluminum alloy sheet and welding wire ER5356, material composition as shown in table 1, table 2.
Feng: The Chinese Journal of nonferrous metals, vol. 14 (2004) no. 1, p. 1895-1900