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Online since: November 2015
Authors: Andrzej Garbacz
Introduction
Concrete-Polymer Composites (C-PC) are commonly considered as new and innovative building construction materials [1].
For two dissimilar materials, part of the energy of the vibration is refracted into the new one, Atr, while the other part is reflected back, Ar.
Wang, Driving forces concrete-polymer composites, Advanced Materials Research 687 2013, p.68-76
Garbacz, Saturation level of the superficial zone of concrete and adhesion of repair systems, Construction and Building Materials 2011, p.2488–2494
Adamczewski, UIR-scanner potential to defect detection in concrete, Advanced Materials Research 687 2013, p.359-365
For two dissimilar materials, part of the energy of the vibration is refracted into the new one, Atr, while the other part is reflected back, Ar.
Wang, Driving forces concrete-polymer composites, Advanced Materials Research 687 2013, p.68-76
Garbacz, Saturation level of the superficial zone of concrete and adhesion of repair systems, Construction and Building Materials 2011, p.2488–2494
Adamczewski, UIR-scanner potential to defect detection in concrete, Advanced Materials Research 687 2013, p.359-365
Online since: July 2011
Authors: Jian Xin Zhang, Li Yuan Yu, Ming Li, Chun Xiao Tang, Chuan Zhen Zhao
The band gap energy is a key parameter of semiconductor materials.
Acknowledgment This work is supported by Special Funds for Major State Basic Research Project (2006CB6049, National Nature Science Foundation of China (60721063, 60676057, 60731160628, 60820106003, 60990311, 60906025), The nature science foundation of Jiangsu province (BK2008019, BK2009255), the Research Funds from NJU-Yangzhou Institute of Opto-electronics References [1] S.
Sauer et al., “Optical investigation of AlGaN epitaxial films grown on AlN buffter layers,” Diamond and Related Materials, vol.11, 2002, pp.892-895
Brennan, “Band structure nonlocal pseudopotential calculation of the III-nitride wurtzite phase materials system.
Said, “ Influence of the composition fluctuation and the disorder on the bowing band gap in semiconductor material,” Microelectronics journal, vol. 38, Aug.2007, pp.860 -870.dio:10.1016/j.mejo.2007.07.002
Acknowledgment This work is supported by Special Funds for Major State Basic Research Project (2006CB6049, National Nature Science Foundation of China (60721063, 60676057, 60731160628, 60820106003, 60990311, 60906025), The nature science foundation of Jiangsu province (BK2008019, BK2009255), the Research Funds from NJU-Yangzhou Institute of Opto-electronics References [1] S.
Sauer et al., “Optical investigation of AlGaN epitaxial films grown on AlN buffter layers,” Diamond and Related Materials, vol.11, 2002, pp.892-895
Brennan, “Band structure nonlocal pseudopotential calculation of the III-nitride wurtzite phase materials system.
Said, “ Influence of the composition fluctuation and the disorder on the bowing band gap in semiconductor material,” Microelectronics journal, vol. 38, Aug.2007, pp.860 -870.dio:10.1016/j.mejo.2007.07.002
Online since: September 2011
Authors: Yi Xiao Qin, Wei Zhang, Xiao Yu Hao, Hong Xiu Du, Ning Zhang
Experiment scheme
Raw material and mix proportions.
Table 1 Chemical composition and parameters of ordinary Portland cement SiO2 [%] Al2O3 [%] CaO [%] MgO [%] Fe2O3 [%] K2O [%] Na2O [%] Surface area [m2/kg] Loss on Ignition Stability Compressive strength[MPa] Tensile strength[MPa] 3d 28d 3d 28d 20.7 6.16 64.0 1.82 4.41 1.2 0.2 350 1.5 Qualified 18.6 46.5 3.8 7.2 Table 2 Parameters of aggregate for concrete Index Apparent density [kg/m3] Bulk density [kg/m3] Material finer than 75µm [%] Clay lump Elongated flaky particle [%] Grain gradation Fineness modulus Index of crushing [%] River sand 2680 1580 0.33 0.05 - Qualified 2.6 - Croshed stone 2715 1630 0.30 0.10 2 Qualified - 6 Table 3 Material parameters of microsilica SiO2 [%] K2O [%] Na2O [%] PH Loss on Ignition [%] Water content [%] Surface area [m2/kg] Bulk density [kg/m3] 88.63 1.32 0.52 7.78 1.80 0.41 18000 350-450 Table 4 Material parameters of ground granulated blast furnace slag SiO2 [%] Al2O3 [%] CaO [%] MgO [%] MnO [%] Loss on Ignition [%] Water
Acknowledgements This work was financially supported by the Shanxi Province colleges and universities sci-tech development research projects (2007115), Shanxi Province Natural Science Foundation (2011011024-2), and Dr start-up fund of scientific research.
The authors also acknowledge the Building Material Lab of Taiyuan University of Technology and all the staff for providing assistance.
China construction industry press, 2003 (In Chinese) [2] Ulm F J, Acker P,Levy M: Journal of Engineering Mechan-ics,1999,125(3): 283-289 [3] Faguang Leng, YueWei Han: Industrial Construction, 2000 (11): 75-78 (In Chinese) [4] C.X.Qiana,P.Storeven: Cement and concrete Researeh,2000,30: 63-69 [5] Li,V.C,Large Volume: Appl,Polym,Sci.,2002(83): 600-686 [6] Nemkumar Banthia, Rishi Gupta: Cement and Concrete Research.36 (2006) 1263-1267 [7] İlker Bekir Topc¸u, Mehmet Canbaz: Construction and Building Materials 21 (2007) 1486–1491 [8] Kurtz S, Balaguru P: Cem Concr Res 2000;30(2):183–90
Table 1 Chemical composition and parameters of ordinary Portland cement SiO2 [%] Al2O3 [%] CaO [%] MgO [%] Fe2O3 [%] K2O [%] Na2O [%] Surface area [m2/kg] Loss on Ignition Stability Compressive strength[MPa] Tensile strength[MPa] 3d 28d 3d 28d 20.7 6.16 64.0 1.82 4.41 1.2 0.2 350 1.5 Qualified 18.6 46.5 3.8 7.2 Table 2 Parameters of aggregate for concrete Index Apparent density [kg/m3] Bulk density [kg/m3] Material finer than 75µm [%] Clay lump Elongated flaky particle [%] Grain gradation Fineness modulus Index of crushing [%] River sand 2680 1580 0.33 0.05 - Qualified 2.6 - Croshed stone 2715 1630 0.30 0.10 2 Qualified - 6 Table 3 Material parameters of microsilica SiO2 [%] K2O [%] Na2O [%] PH Loss on Ignition [%] Water content [%] Surface area [m2/kg] Bulk density [kg/m3] 88.63 1.32 0.52 7.78 1.80 0.41 18000 350-450 Table 4 Material parameters of ground granulated blast furnace slag SiO2 [%] Al2O3 [%] CaO [%] MgO [%] MnO [%] Loss on Ignition [%] Water
Acknowledgements This work was financially supported by the Shanxi Province colleges and universities sci-tech development research projects (2007115), Shanxi Province Natural Science Foundation (2011011024-2), and Dr start-up fund of scientific research.
The authors also acknowledge the Building Material Lab of Taiyuan University of Technology and all the staff for providing assistance.
China construction industry press, 2003 (In Chinese) [2] Ulm F J, Acker P,Levy M: Journal of Engineering Mechan-ics,1999,125(3): 283-289 [3] Faguang Leng, YueWei Han: Industrial Construction, 2000 (11): 75-78 (In Chinese) [4] C.X.Qiana,P.Storeven: Cement and concrete Researeh,2000,30: 63-69 [5] Li,V.C,Large Volume: Appl,Polym,Sci.,2002(83): 600-686 [6] Nemkumar Banthia, Rishi Gupta: Cement and Concrete Research.36 (2006) 1263-1267 [7] İlker Bekir Topc¸u, Mehmet Canbaz: Construction and Building Materials 21 (2007) 1486–1491 [8] Kurtz S, Balaguru P: Cem Concr Res 2000;30(2):183–90
Online since: February 2022
Authors: Vyacheslav A. Dudko, Boris P. Yur'ev
Considering the above, in the experiments on reducing roasting the electric steelmaking dusts were mixed with the carbon-containing materials.
Table 1 Chemistry of Charge Components Material Content, [%] Fetot.
Dong, Separation of ZnO from the stainless steelmaking dust and graphite mixture by microwave irradiation, High Temperature Materials and Processes. 34 (2015) 177-184
Jianga, Pyrometallurgical recycling of electric arc furnace dust, Journal of Cleaner Production. 149 (2017) 1079-1100
Tanutrov, On zinc reduction with carbon, Bulletin of the USSR Academy of Sciences.
Table 1 Chemistry of Charge Components Material Content, [%] Fetot.
Dong, Separation of ZnO from the stainless steelmaking dust and graphite mixture by microwave irradiation, High Temperature Materials and Processes. 34 (2015) 177-184
Jianga, Pyrometallurgical recycling of electric arc furnace dust, Journal of Cleaner Production. 149 (2017) 1079-1100
Tanutrov, On zinc reduction with carbon, Bulletin of the USSR Academy of Sciences.
Online since: August 2014
Authors: Vladimír Baláž, Ján Semjon, Lucia Koukolová, Marek Vagaš
Murawski, Multipurpose Mobile Robot, Applied Mechanics and Materials, vol. 282, (2013), 152-157
[4] Dvinge, N., Schultz, U.
Applied Mechanics and Materials Vol. 282 (2013) pp. 211-220 [9] M.
Applied Mechanics and Materials, Vol. 282 (2013),pp. 51-58
In Modern Machinery Science Journal: 20th International Workshop on Robotics in Alpe-Adria-Danube Region. - 2011, special edition, p. 73-77.
In: Applied Mechanics and Materials.
Applied Mechanics and Materials Vol. 282 (2013) pp. 211-220 [9] M.
Applied Mechanics and Materials, Vol. 282 (2013),pp. 51-58
In Modern Machinery Science Journal: 20th International Workshop on Robotics in Alpe-Adria-Danube Region. - 2011, special edition, p. 73-77.
In: Applied Mechanics and Materials.
Online since: November 2012
Authors: Lan Min Wang, Wen Tong Tian, Jun Jie Sun
Acknowledgements
This work was financially supported by the Basic Research Foundation of Earthquake Prediction Institute, China Earthquake Administration (No. 2010A88-6) and the National Natural Science Foundation of China (No. 50978239).
Zhou: Chinese Journal of Rock Mechanics and Engineering Vol. 27 No. 5 (2008), p. 938-945, In Chinese
Lu: Journal of Structural Engineering Vol. 128 No. 1/3 (2002), p. 390-399
Hao: Key Engineering Materials Vol. 233-236 No. 1 (2003), p. 217-222
Wei: Journal of Shandong University of Science and Technology (Natural Science) Vol. 25 No. 4 (2006), p. 39-42, 49, In Chinese
Zhou: Chinese Journal of Rock Mechanics and Engineering Vol. 27 No. 5 (2008), p. 938-945, In Chinese
Lu: Journal of Structural Engineering Vol. 128 No. 1/3 (2002), p. 390-399
Hao: Key Engineering Materials Vol. 233-236 No. 1 (2003), p. 217-222
Wei: Journal of Shandong University of Science and Technology (Natural Science) Vol. 25 No. 4 (2006), p. 39-42, 49, In Chinese
Online since: July 2014
Authors: Zhong Li, Jun Xia Yu, Wei He Lin, Wu Wei, Ri Sheng Mai, Chun Xu Chen, Zhen Yong He
In order to ensure its contact points even and effective, its skin is designed as picture 3 has showed, which is made by high-rate abrasion resistant material and ensures its climbing ability and safety.
Industrial Robot-an International Journal, vol.34, 2007, pp.303-309
International Journal on Industrial Robots, 2005, 32(2), pp.139-148
Symp. on Micromechatronics and Human Science, 2001, pp.183–188
Journal of Mechanical Engineering, 2009, 45(5): 128-133
Industrial Robot-an International Journal, vol.34, 2007, pp.303-309
International Journal on Industrial Robots, 2005, 32(2), pp.139-148
Symp. on Micromechatronics and Human Science, 2001, pp.183–188
Journal of Mechanical Engineering, 2009, 45(5): 128-133
Online since: July 2011
Authors: Zhong Liang Liu, Yu Jun Gou, Xiao Hui Zhong
Introduction
With the development of MOCVD extension growth technology, multi-quantum well (MQW) structure, GaN-based materials and packaging technology, light-emitting diode (LED) applications has been gradually shifted into the lighting area from display area.
Acknowledgment This work is supported by Hebei Province Natural Science Foundation Project (No.
(Fifty-Sixth Electronic Components & Technology Conference, USA 2006) [4] DongChuan Mo: Journal of Engineering Thermophysics, Vol. 30 (2009) p. 1759 (in Chinese) [5] Xiangyou LU, Yuanxia Cheng: Experimental Investigation on Heat Pipe Heat Sink for Cooling High Power LED.
Acknowledgment This work is supported by Hebei Province Natural Science Foundation Project (No.
(Fifty-Sixth Electronic Components & Technology Conference, USA 2006) [4] DongChuan Mo: Journal of Engineering Thermophysics, Vol. 30 (2009) p. 1759 (in Chinese) [5] Xiangyou LU, Yuanxia Cheng: Experimental Investigation on Heat Pipe Heat Sink for Cooling High Power LED.
Online since: December 2011
Authors: Mont Kumpugdee-Vollrath, Stefan Lemke
Controlled release of tablets containing poorly water soluble model drug coated with Kollicoat MAE 30DP
Stefan Lemke1, a and Mont Kumpugdee-Vollrath1, b,*
1Beuth Hochschule für Technik Berlin - University of Applied Sciences, Faculty of Mathematics-Physics-Chemistry, Pharmaceutical and Chemical Engineering, Luxemburger Str. 10, D-13353 Berlin, Germany
aslemke@beuth-hochschule.de, b,*vollrath@beuth-hochschule.de (corresponding author)
Keywords: controlled release, Kollicoat, fluidized bed, coating, SEM, dissolution
Abstract.
Materials and Methods 1) Preparation of core tablets The core tablets with a weight of 295 mg and a hardness of 82N were prepared by mixing 2%w/w of the model drug (Behr GmbH, Germany, purity 98%, solubility 30mg/l) together with 96%w/w of a filler (Ludipress, BASF, Germany) and 2%w/w of glidants (talcum:magnesium stearate (Fagron, Germany) = 1:1) in the three dimensional shaking mixer (Turbula T2A, Willy A.
Ng: International Journal of Pharmaceutics 385 (2010), 20–28
Materials and Methods 1) Preparation of core tablets The core tablets with a weight of 295 mg and a hardness of 82N were prepared by mixing 2%w/w of the model drug (Behr GmbH, Germany, purity 98%, solubility 30mg/l) together with 96%w/w of a filler (Ludipress, BASF, Germany) and 2%w/w of glidants (talcum:magnesium stearate (Fagron, Germany) = 1:1) in the three dimensional shaking mixer (Turbula T2A, Willy A.
Ng: International Journal of Pharmaceutics 385 (2010), 20–28
Online since: August 2012
Authors: Chuan Wu, Guo Jun Wen
But this method has following deficiencies:
(1) Most places that may appear landslides are difficult to reach so that technical workers taking artificial searching approach may easily get injured;
(2) As there are so many places that may appear landslides, it will cost more human, material and financial resources if all easy occurrence points get artificial inspection;
(3) The method observing surface crack width using naked eye has some deficiencies: first of all, the observation accuracy of human eye may vary from person to person; second, it is hard to avoid human factors in founding no surface crack.
It will not only reduce the expense of manpower and material resources, but also improve the monitoring accuracy by full-time monitoring.
The sensor adopted is FAS-LF-BM01 crackmetre produced by JiangXi FeiShang Science and Technology Liability Company.
Journal of Engineering Geology. 2011 (1):76-82
It will not only reduce the expense of manpower and material resources, but also improve the monitoring accuracy by full-time monitoring.
The sensor adopted is FAS-LF-BM01 crackmetre produced by JiangXi FeiShang Science and Technology Liability Company.
Journal of Engineering Geology. 2011 (1):76-82