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Online since: October 2011
Authors: Ji Sheng Ma, Da Lin Wu, Bin Bin Hua
Fig. 1 Bracket solid model Fig. 2 Bracket finite element model
The material of the gun bracket is used the ZL114A aluminum alloy, and the material parameters is shown in Table 1.
Table 1 Material parameters of the gun bracket material Density (Kg/m3) Modulus (GPa) Poisson's ratio ZL114A 2700 70 0.33 Boundary Conditions and External Excitation The gun bracket is connected with platform with 32 bolts, and platform is fixed to the base with 19 bolts.
Through the comparison with the given material parameters, it indicates the strength of the bracket is up to requirements.
,Nanjing University of Science and Technology, China 2001) (In Chinese)
[3] Dongjie Zhao, Guigao Le: Journal of Projectile, Rockets, Missiles and Guidance. 28(4) 168-171 (2008) (In Chinese)
Table 1 Material parameters of the gun bracket material Density (Kg/m3) Modulus (GPa) Poisson's ratio ZL114A 2700 70 0.33 Boundary Conditions and External Excitation The gun bracket is connected with platform with 32 bolts, and platform is fixed to the base with 19 bolts.
Through the comparison with the given material parameters, it indicates the strength of the bracket is up to requirements.
,Nanjing University of Science and Technology, China 2001) (In Chinese)
[3] Dongjie Zhao, Guigao Le: Journal of Projectile, Rockets, Missiles and Guidance. 28(4) 168-171 (2008) (In Chinese)
Online since: December 2003
Authors: Toshihiro Kasuga, Masayuki Nogami, Hirotaka Maeda
Journal Citation (to be inserted by the publisher )
Copyright by Trans Tech Publications
Preparation of Calcium Carbonate / Poly(lactic acid) Composite (CCPC)
Hollow Spheres
H.
Introduction Materials having a high bioactivity or bioresorbability play an important role in the recovery of bone defects.
Formation of porous materials using biodegradable microspheres would have the possibility to obtain easily three-dimensional designed materials for bone grafts[5].
A large amount of vaterite in calcium carbonates as the starting material disappeared after the spheres formed.
Acknowledgements This work was supported in part by a Grant-in-Aid for Scientific Research from Japan Society for the Promotion of Science (No. 14380398) and grant from the NITECH 21st Century COE Program "World Ceramics Center for Environmental Harmony".
Introduction Materials having a high bioactivity or bioresorbability play an important role in the recovery of bone defects.
Formation of porous materials using biodegradable microspheres would have the possibility to obtain easily three-dimensional designed materials for bone grafts[5].
A large amount of vaterite in calcium carbonates as the starting material disappeared after the spheres formed.
Acknowledgements This work was supported in part by a Grant-in-Aid for Scientific Research from Japan Society for the Promotion of Science (No. 14380398) and grant from the NITECH 21st Century COE Program "World Ceramics Center for Environmental Harmony".
Online since: September 2015
Authors: Michal Kraus, Kateřina Kubeková, Darja Kubečková
The effective using of material resources involves the regulation of non-renewable natural resources, the increasing the share of renewable sources, including recycling and reutilization existing recycled building materials. [1, 2]
The global orientation and achievement of the objectives of sustainable development is extremely difficult and revolutionary process leading to a fundamentally different principles and forms of contemporary industrial civilization.
The sample includes energy passive houses with light, massive or combined constructions of heterogeneous building materials built in the years 2004-2013.
Kubečková, Diagnostics of Current Developments in the Field of Building Airtightness, in: Applied Mechanics and Materials volume 501 – 504 (2014) pp. 2227-2230
[2] Directive 2010/31/EU of the European Parliament and of the Council of 19 May 2010 on the energy performance of building (recast), 2010, Official Journal of the EU, L153
Kubečková, Airtightness of Energy Efficient Buildings, in: 1st Annual International Conference on Architecture and Civil Engineering, Global Science and Technology Forum, Singapore, 2013, pp. 29 – 35
The sample includes energy passive houses with light, massive or combined constructions of heterogeneous building materials built in the years 2004-2013.
Kubečková, Diagnostics of Current Developments in the Field of Building Airtightness, in: Applied Mechanics and Materials volume 501 – 504 (2014) pp. 2227-2230
[2] Directive 2010/31/EU of the European Parliament and of the Council of 19 May 2010 on the energy performance of building (recast), 2010, Official Journal of the EU, L153
Kubečková, Airtightness of Energy Efficient Buildings, in: 1st Annual International Conference on Architecture and Civil Engineering, Global Science and Technology Forum, Singapore, 2013, pp. 29 – 35
Online since: November 2012
Authors: Kai Leung Yung, Wei Chen, Yan Xu
Introduction
The use of thermoplastics for fabricating electronic devices, sensors, medical and bioanalytical microchips has many advantages over other materials.
Results and discussions The electrical conductivity W (S m-1) of a material is calculated by Where R is the electrical resistance of a uniform specimen of the material (measured in ohms W), is the length of the piece of material (measured in meters, m), A is the cross-sectional area of the specimen (measured in square meters, m2) Figure 2 Specimen dimension Figure 3 Photos of 3 specimens Three specimens were fabricated and shown in Fig3.
Power Sources Vol.80 (1999), p.235 [7] F Mighri, MA Huneault, MF Champagne: Polymer Engineering and Science Vol. 44 (2004) , p.1755 [8] WS Jou, HZ Cheng, CF Hsu: Journal of Alloys and Compounds Vol.434 (2007), p.641 [9] MB Bryning, MF Islam, JM Kikkawa: Advanced Materials Vol.17 (2005), p.1186 [10] KI Winey, T Kashiwagi, MF Mu: MRS Bulletin Vol.32 (2007), p.348
Results and discussions The electrical conductivity W (S m-1) of a material is calculated by Where R is the electrical resistance of a uniform specimen of the material (measured in ohms W), is the length of the piece of material (measured in meters, m), A is the cross-sectional area of the specimen (measured in square meters, m2) Figure 2 Specimen dimension Figure 3 Photos of 3 specimens Three specimens were fabricated and shown in Fig3.
Power Sources Vol.80 (1999), p.235 [7] F Mighri, MA Huneault, MF Champagne: Polymer Engineering and Science Vol. 44 (2004) , p.1755 [8] WS Jou, HZ Cheng, CF Hsu: Journal of Alloys and Compounds Vol.434 (2007), p.641 [9] MB Bryning, MF Islam, JM Kikkawa: Advanced Materials Vol.17 (2005), p.1186 [10] KI Winey, T Kashiwagi, MF Mu: MRS Bulletin Vol.32 (2007), p.348
Online since: July 2007
Authors: Zhi Qiang Li, He Ping Guo, H.Y. Xu
Experimental procedure
In this paper the material studied was fine-grained GH4169 superalloy sheet which supplied by
Northeast University of China.
P. ersiani, et al: Materials Science Forum Vols.170-172(1994), p.351
[4] Hongjun Lu, Xinchao Jia, Kaifeng Zhang, Caogen Yao: Materials Science and Engineering A326 (2002), p.382
Huang, P.L.Blackwell: Materials Science and Technology Vol.19(2003), p.461
[6] M.S.Yeh, C.W.Tsau, T.H.Chuang: Journal of Materials Enginerring and Performance Vol.5 No.1(1996), p.71
P. ersiani, et al: Materials Science Forum Vols.170-172(1994), p.351
[4] Hongjun Lu, Xinchao Jia, Kaifeng Zhang, Caogen Yao: Materials Science and Engineering A326 (2002), p.382
Huang, P.L.Blackwell: Materials Science and Technology Vol.19(2003), p.461
[6] M.S.Yeh, C.W.Tsau, T.H.Chuang: Journal of Materials Enginerring and Performance Vol.5 No.1(1996), p.71
Online since: June 2022
Authors: Danny Friese, Chokri Cherif, Lars Hahn
Materials and Methods
The carbon fiber multi-filament yarn used for preliminary investigations comply with the raw material of the approval textiles applied in the general type approval Z-31.10-182 [20].
The material specifications are shown in Table 1.
Table 1: Specification of material used for preliminary investigations.
Cherif, A novel processing solution for the production of spatial three-dimensional stitch-bonded fabrics, In: Textile Research Journal 82 (2012), No. 15, pp.1531–1544 [12] V.
Cherif, Novel fully automated 3D coreless filament winding technology, In: Journal of Composite Materials 52 (2018), No. 22, pp.3001–3013 [15] N.
The material specifications are shown in Table 1.
Table 1: Specification of material used for preliminary investigations.
Cherif, A novel processing solution for the production of spatial three-dimensional stitch-bonded fabrics, In: Textile Research Journal 82 (2012), No. 15, pp.1531–1544 [12] V.
Cherif, Novel fully automated 3D coreless filament winding technology, In: Journal of Composite Materials 52 (2018), No. 22, pp.3001–3013 [15] N.
Online since: October 2014
Authors: Xiu Hua Zheng, Shi Zuo Zhan, Xu Zhang
Introduction
As a well-known brittle material, cement concrete has a lot of micro-cracks and uneven internal structures interior because of the raw materials, production process and other aspects, leading to the difficulty to improve the brittleness of concrete [1].
As a kind of high elastic materials, rubberhas high toughness, good performance of anti-fatigue and and permeability resistance.
Experimental Materials and Methods P·O42.5 cement was selected, coarse aggregate is 4.75-9.5mm single graded gravel and 9.5-26.5mm single graded gravel, two aggregate were mixed with the ratio of 6:4.
Because rubber powder can’t react with cementitious materials in the cement concrete, and does not belong to the hydrophilic material, so the adhesive ability of rubber power and cement paste interface is weak, which seriously affect the strength of concrete and causes much loss of strength.
Reinforcement methods of concrete interfacial bond strength, Journal of Chang’an University (Natural Science Edition),29(1) (2009),p. 1-4
As a kind of high elastic materials, rubberhas high toughness, good performance of anti-fatigue and and permeability resistance.
Experimental Materials and Methods P·O42.5 cement was selected, coarse aggregate is 4.75-9.5mm single graded gravel and 9.5-26.5mm single graded gravel, two aggregate were mixed with the ratio of 6:4.
Because rubber powder can’t react with cementitious materials in the cement concrete, and does not belong to the hydrophilic material, so the adhesive ability of rubber power and cement paste interface is weak, which seriously affect the strength of concrete and causes much loss of strength.
Reinforcement methods of concrete interfacial bond strength, Journal of Chang’an University (Natural Science Edition),29(1) (2009),p. 1-4
Online since: July 2006
Authors: Jacob Jorne, Santosh Kurinec, Cody Washburn
Various techniques have been employed in deposition and
patterning of magnetic materials such as physical vapor deposition followed by etching or
electroplating [1, 2].
High frequency magnetic materials are oxide based ceramics and are therefore difficult to evaporate, sputter, plate and selectively etched.
This work has been supported by the National Science Foundation for under the grant # ECS-0219379.
Ito: "Microfabrication and characteristics of magnetic thin-film inductors in the ultrahigh frequency region", Journal of Applied Physics, 85,(1999), 7919-7922 [2] M.
Sci., 39(3), (2004), pp 771-778 [4] Ferronics V Material Product Catalog: http://www.ferronics.com/catalog/materials.pdf [5] S.
High frequency magnetic materials are oxide based ceramics and are therefore difficult to evaporate, sputter, plate and selectively etched.
This work has been supported by the National Science Foundation for under the grant # ECS-0219379.
Ito: "Microfabrication and characteristics of magnetic thin-film inductors in the ultrahigh frequency region", Journal of Applied Physics, 85,(1999), 7919-7922 [2] M.
Sci., 39(3), (2004), pp 771-778 [4] Ferronics V Material Product Catalog: http://www.ferronics.com/catalog/materials.pdf [5] S.
Online since: August 2017
Authors: Shoeb R. Sayyed, Nasreen Bano, B.B. Singh
Science and Commerce College, Goregaon-402 103, Dist.
Porous materials such as sand and crushed rock underground are saturated with water which under the influence of local pressure gradients migrate and transport the liquid through the material.
The transport properties of fluid saturated porous materials are very important in the petroleum and geothermal industries.
Rashidi, A new numerical simulation of MHD stagnationpoint flow over a permeable stretching/shrinking sheet in porous media with heat transfer, Iranian Journal of Science and Technology, Transactions A: Science (2016) 1-7.
Manjunatha, Melting phenomenon in MHD stagnation point flow of dusty fluid over a stretching sheet in the presence of thermal radiation and non-uniform heat source-sink, International Journal of Computational Methods in Engineering Science and Mechanics 16(5)(2015) 265-274. https://doi.org/10.1080/15502287.2015.1047056 [60] M.
Porous materials such as sand and crushed rock underground are saturated with water which under the influence of local pressure gradients migrate and transport the liquid through the material.
The transport properties of fluid saturated porous materials are very important in the petroleum and geothermal industries.
Rashidi, A new numerical simulation of MHD stagnationpoint flow over a permeable stretching/shrinking sheet in porous media with heat transfer, Iranian Journal of Science and Technology, Transactions A: Science (2016) 1-7.
Manjunatha, Melting phenomenon in MHD stagnation point flow of dusty fluid over a stretching sheet in the presence of thermal radiation and non-uniform heat source-sink, International Journal of Computational Methods in Engineering Science and Mechanics 16(5)(2015) 265-274. https://doi.org/10.1080/15502287.2015.1047056 [60] M.
Online since: July 2019
Authors: Zhao Jiang Liao, Tao Li, Heng Heng Gong, Wen Ya Zhang
The Egg shell (ES) is waste materials emerging out in large quantities from sources.
Composite materials with PbSe are used widely now [13].
Methods and Materials Chemicals All chemical reagents used in this study were analytical grade (A.R.) and obtained from Sinopharm Chemical Reagent Co., Ltd.
Composite materials with PbSe are used widely now [13].
China (2015CY1), the Science Foundation of Yichang, Hubei Province, China (A14-302-a14).
Composite materials with PbSe are used widely now [13].
Methods and Materials Chemicals All chemical reagents used in this study were analytical grade (A.R.) and obtained from Sinopharm Chemical Reagent Co., Ltd.
Composite materials with PbSe are used widely now [13].
China (2015CY1), the Science Foundation of Yichang, Hubei Province, China (A14-302-a14).