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Online since: September 2014
Authors: Xin Wang, Hong Wang, Xue Dong Lv, Shi Man Wang
Materials and methods
Water quality.
Fig.3 The concentrations of COD and oil in the effluent of treatment processes COD and oil of influent were obviously fluctuated, but the effluent of hydrolytic acidification was more stead, The COD removal of influent after hydrolytic acidification process was limitary and the removal rate was 20.4% ~ 40.7% and that of oil was 25.5% ~ 39.8%, which indicates that there are a large number of no biodegradable materials in the wastewater.
Hydrolytic acidification process is an effective pretreatment methods for the industry wastewater, and it could transform the big-molecule organics of oil, saturated hydrocarbon, asphaltene or aromatic hydrocarbons into the biodegradable small-molecule materials and could improve the biodegradability of wastewater, and create beneficial condition for the sequent HCR process.
Acknowledgment This work was supported by the Major Science and Technology Program for Water Pollution Control and Treatment (2013ZX07202-007), the national 12th Five-Year technology based plan topic (2011BAJ06B02), Shenyang science and technology project (F10-221-4-00).
Journal of Environmental Sciences 2010, 22(12) 1875–1882
Fig.3 The concentrations of COD and oil in the effluent of treatment processes COD and oil of influent were obviously fluctuated, but the effluent of hydrolytic acidification was more stead, The COD removal of influent after hydrolytic acidification process was limitary and the removal rate was 20.4% ~ 40.7% and that of oil was 25.5% ~ 39.8%, which indicates that there are a large number of no biodegradable materials in the wastewater.
Hydrolytic acidification process is an effective pretreatment methods for the industry wastewater, and it could transform the big-molecule organics of oil, saturated hydrocarbon, asphaltene or aromatic hydrocarbons into the biodegradable small-molecule materials and could improve the biodegradability of wastewater, and create beneficial condition for the sequent HCR process.
Acknowledgment This work was supported by the Major Science and Technology Program for Water Pollution Control and Treatment (2013ZX07202-007), the national 12th Five-Year technology based plan topic (2011BAJ06B02), Shenyang science and technology project (F10-221-4-00).
Journal of Environmental Sciences 2010, 22(12) 1875–1882
Online since: October 2012
Authors: Jian Hua Ye
The traditional grout material is sticky rice mortar or limestone mortar, with other additives if necessary.
The selection of material and grouting machine.
So the chemical material as epoxy resin, polymer emulsion and etc. shall be chosen as the grouting material.
Wood Construction Techniques of Ancient Chinese Architecture [M].Beijing:Science Press, 2003
“Study on Seismic Behavior and Retrofitting of Gravel Masonry Wall in Historical Structures”, Journal of Civil Engineering and Management , 2011(03):8-11 [7] Huang Wenzheng, Zheng Lipeng.
The selection of material and grouting machine.
So the chemical material as epoxy resin, polymer emulsion and etc. shall be chosen as the grouting material.
Wood Construction Techniques of Ancient Chinese Architecture [M].Beijing:Science Press, 2003
“Study on Seismic Behavior and Retrofitting of Gravel Masonry Wall in Historical Structures”, Journal of Civil Engineering and Management , 2011(03):8-11 [7] Huang Wenzheng, Zheng Lipeng.
Online since: August 2013
Authors: Chun Jie Yang, Fu Ping Tang, Tao He, Qiang Fu
Physical Simulation of Inclusions Removal in 180t RH Degasser
Chunjie Yang1, a, Fuping Tang2,b ,Tao He3, c and Qiang Fu4,d
1 School of Chemical Engineering, University of Science and Technology Liaoning, Anshan city 114053, Liaoning, China
2Anshan Iron and Steel Group Company, Anshan city 114009,Liaoning,China
3 School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan city 114053, Liaoning, China
4 Liaoning Electric Power Company Limited Maintenance Branch company, Liaoyang city 111000, Liaoning,China
asunnyas@163.com, bxfwang_breeze@hotmail.com, c1090100130@qq.com, dyangchunming79@163.com
Keywords: RH degasser, Inclusions, Physical Simulation
Abstract.
Introduction With the development of socio-economic and the advancement of science and technology, People put forward higher requirements for the materials,steel is no exception, People are more strict to the requirement of steel quality, To improve the quality of the steel, We must improve the cleanliness of the molten steel, that is, reduce the number and size of inclusions in the molten steel.
Cleanness is one of the key factors when looking at the present and future role of steel as the most important material for mankind. [1]Steel cleanness is control by a wide range of operating practices throughout the steelmaking processes.[2] Non-metallic inclusions have a density lower than that of steel so that these inclusion tend to rise out of the liquid steel to the slag.
International Journal of Minerals, Metallurgy and Materials Volume17, Number1, February 2010, Page22
Introduction With the development of socio-economic and the advancement of science and technology, People put forward higher requirements for the materials,steel is no exception, People are more strict to the requirement of steel quality, To improve the quality of the steel, We must improve the cleanliness of the molten steel, that is, reduce the number and size of inclusions in the molten steel.
Cleanness is one of the key factors when looking at the present and future role of steel as the most important material for mankind. [1]Steel cleanness is control by a wide range of operating practices throughout the steelmaking processes.[2] Non-metallic inclusions have a density lower than that of steel so that these inclusion tend to rise out of the liquid steel to the slag.
International Journal of Minerals, Metallurgy and Materials Volume17, Number1, February 2010, Page22
Online since: June 2014
Authors: Kun Wang, Yi Yang
Different from extensive reading, the course of listing and speaking focuses on the practice of materials.
The textbooks are rich in the material of westerners’ lives.
Acknowledgements This work was financially supported by the Science Department of my work unit---Jilin Teachers’ College of Engineering and Technology.
Factors Affecting Teachers’ Use of Information and Communication Technology: A Review of the Literature [J], Journal of Information Technology for Teacher Education (2009)
Implementation and Effects of One-to –One Computing Initiatives: A Research Synthesis [J], Journal of Research on Technology in Education, (2006).
The textbooks are rich in the material of westerners’ lives.
Acknowledgements This work was financially supported by the Science Department of my work unit---Jilin Teachers’ College of Engineering and Technology.
Factors Affecting Teachers’ Use of Information and Communication Technology: A Review of the Literature [J], Journal of Information Technology for Teacher Education (2009)
Implementation and Effects of One-to –One Computing Initiatives: A Research Synthesis [J], Journal of Research on Technology in Education, (2006).
Online since: October 2007
Authors: Kenji Higashi, Yorinobu Takigawa, W. Yamauchi, M. Hara, K. Matsuda, T. Iwai, M. Kihara
., Sakai, Japan
2
Department of Materials Science, Graduate School of Engineering
Osaka Prefecture University, Sakai, Japan
1a)
haram@sic.shimano.co.jp,
1b)
mtdken@sic.shimano.co.jp,
1c)
iwait@sic.shimano.co.jp,
1d)
kiharam@sic.shimano.co.jp,
1e)
yamauti@sic.shimano.co.jp,
2f)
takigawa@mtr.osakafu-u.ac.jp,
2g)
higashi@mtr.osakafu-u.ac.jp
Keywords: Corrosion resistance, Weather resistance, Anodizing, Anion resin, Mirror luster
Abstract
A new surface treatment technology for the aluminum alloys that exhibits not only high corrosion and weather
resistance but also good mirror luster has been developed.
Introduction Anodizing is one of the most common aluminum surface coating methods. 1), 2) In the areas where appearance and functional aspects of aluminum products are important, a variety of ideas have been applied to surface treatment. for improving the wear resistance and corrosion resistance 3) and anodized aluminum is attracting a good deal of public attention as a clean, recyclable material. 4) While mirror luster and high corrosion resistance are required for products such as outdoor goods and high quality sporting goods to be used under a harsh environment, In order to provide A2014 alloy with high weather resistance and high corrosion resistance for outdoor use (CASS 3 cycle (172.8 ks), rating number 9.5 or greater), and good appearance with mirror luster unique to the metal (reflectance of 50% or greater) without increasing cost, a new processing technique (hereinafter called "electrolytic permeation") 5),6) that combines anodizing and electro-deposition
Kawabata: Journal of The Surface Finishing Society of Japan 60 (1997) 956-960. 2.
Ichikawa: Journal of The Surface Finishing Society of Japan 54 (2003) 794-797. 3.
Introduction Anodizing is one of the most common aluminum surface coating methods. 1), 2) In the areas where appearance and functional aspects of aluminum products are important, a variety of ideas have been applied to surface treatment. for improving the wear resistance and corrosion resistance 3) and anodized aluminum is attracting a good deal of public attention as a clean, recyclable material. 4) While mirror luster and high corrosion resistance are required for products such as outdoor goods and high quality sporting goods to be used under a harsh environment, In order to provide A2014 alloy with high weather resistance and high corrosion resistance for outdoor use (CASS 3 cycle (172.8 ks), rating number 9.5 or greater), and good appearance with mirror luster unique to the metal (reflectance of 50% or greater) without increasing cost, a new processing technique (hereinafter called "electrolytic permeation") 5),6) that combines anodizing and electro-deposition
Kawabata: Journal of The Surface Finishing Society of Japan 60 (1997) 956-960. 2.
Ichikawa: Journal of The Surface Finishing Society of Japan 54 (2003) 794-797. 3.
Online since: November 2011
Authors: Zhong Hai Liu, Hai Long Tong, Li Yin, Quan Jin
Parametric defined material properties, generated mesh, defined contact and set contact parameters, defined boundary condition, defined solution set, etc. (3) User interface development: Carried out interface development use UIDL in LS-DYNA.
Start Defined material properties Parametric model building Mesh generation Satisfied1 Define contact and set parameters Boundary condition No Yes Solution set Solve Examine post-processing results Enter LS-PREPOST Examine stress, strain and dynamic display Examine stress, strain and dynamic identities End No Yes Static Dynamic Satisfied2 Satisfied3 Fig. 1 System developed flow chart Developed Menus and Interfaces.
Fig. 2 System main developed menus Developed interfaces in LS-DYNA: (1) Welcome interface: Basic Hypothesis, system introduction and operating instruction. (2) Material props interface: Input elastic modulus, Poisson ratio, density of road wheel and pin. (3) Solid model interface: Input relative dimensions and parameters of road wheel and pin. (4) Finite element model interface: Automatic generate finite element mesh by input general and local units size, also can automatic clear finite element mesh and pre-generate mesh, as Fig. 3 shows. (5) Boundary conditions apply interface: Define boundary conditions, also can clear and pre-define. (6) Rw solve set interface: Solution set. (7) Nodal solution interface: In static analysis, examine node stress, strain, contact stress and so on of contact analysis of road wheel and pin, as Fig. 4. (8) Element table solution interface: In static analysis, examine element stress, strain, contact stress and so on of contact analysis of road wheel and pin
References [1] Haifu Liu: Coal Mine Machinery Vol. 30 (2009), p. 192 [2] Xiaohuo Li, Ping Li and Chunsheng Liu: Journal of Heilongjiang Institute of Science and Technology Vol. 12 (2002), p. 1 [3] S.
Vijayarangan and Ganesan: Journal of Sound and Vibration Vol. 162(1993), p. 185 [4] Yueqian Jia: Mechanized Mining Technology Manual (Coal Industry Press, China 2001)
Start Defined material properties Parametric model building Mesh generation Satisfied1 Define contact and set parameters Boundary condition No Yes Solution set Solve Examine post-processing results Enter LS-PREPOST Examine stress, strain and dynamic display Examine stress, strain and dynamic identities End No Yes Static Dynamic Satisfied2 Satisfied3 Fig. 1 System developed flow chart Developed Menus and Interfaces.
Fig. 2 System main developed menus Developed interfaces in LS-DYNA: (1) Welcome interface: Basic Hypothesis, system introduction and operating instruction. (2) Material props interface: Input elastic modulus, Poisson ratio, density of road wheel and pin. (3) Solid model interface: Input relative dimensions and parameters of road wheel and pin. (4) Finite element model interface: Automatic generate finite element mesh by input general and local units size, also can automatic clear finite element mesh and pre-generate mesh, as Fig. 3 shows. (5) Boundary conditions apply interface: Define boundary conditions, also can clear and pre-define. (6) Rw solve set interface: Solution set. (7) Nodal solution interface: In static analysis, examine node stress, strain, contact stress and so on of contact analysis of road wheel and pin, as Fig. 4. (8) Element table solution interface: In static analysis, examine element stress, strain, contact stress and so on of contact analysis of road wheel and pin
References [1] Haifu Liu: Coal Mine Machinery Vol. 30 (2009), p. 192 [2] Xiaohuo Li, Ping Li and Chunsheng Liu: Journal of Heilongjiang Institute of Science and Technology Vol. 12 (2002), p. 1 [3] S.
Vijayarangan and Ganesan: Journal of Sound and Vibration Vol. 162(1993), p. 185 [4] Yueqian Jia: Mechanized Mining Technology Manual (Coal Industry Press, China 2001)
Online since: July 2011
Authors: Tian Min Guan, Ying Shi Sun, Shu Lian Zhang
(3)
In the formula, , ,
In the formula, and are the poisson’s ratio and elastic modulus of the cycloid gear and pin gear material respectively, and the both adopt the same material:
, ,
and are the poisson’s ratio and the elastic modulus of the pin gear shell, and the material is HT200, ,
The total contact deformation of the meshing point between cycloid gear and pin gear and the meshing point between pin gear and pin gear shell along the direction of the normal is (the direction thereof is the same as ):
The deformation by maximal contact force between cycloid gear and pin gear is:
(4)
In the position of the largest meshing force, and ; substitute the two formulas above into the calculating formula for profile curvature radius, and we can get:
Acknowledgement State Natural Sciences Fund Project “FA drive series research based on optimum tooth profile design theory” (50875029) References [1] Lixing Li, Tianmin Guan, Zifu Wang.
Machinery Engineering Journal. 1988(3): 24.28~32
Force analysis of output mechanism for cycloid drive, “Dalian Railway Institute Journal”, 1992
Acknowledgement State Natural Sciences Fund Project “FA drive series research based on optimum tooth profile design theory” (50875029) References [1] Lixing Li, Tianmin Guan, Zifu Wang.
Machinery Engineering Journal. 1988(3): 24.28~32
Force analysis of output mechanism for cycloid drive, “Dalian Railway Institute Journal”, 1992
Online since: May 2005
Authors: Antonio Castaldini, Anna Cavallini, Roberta Nipoti, Mariaconcetta Canino, Antonella Poggi, Francesco Moscatelli
For example, due to its wide band gap and high thermal conductivity, SiC is
an attractive material for high temperature operations [1].
Ni dots 50nm thick have been evaporated on the n+/p junctions in order to form the front contact, as well as on the p-type epilayer in order to form Schottky barriers on the unimplanted material.
Capano, Applied Surface Science, 184 (2001), 317-322 [4] A.
Poggi et al., ICSCRM 2003, October 2003, Lione (France) [5] Rybiki et al., Journal of Applied Physics, vol.78 (1995), no. 5, 2996 [6] A.A.
Rao et al., Solid-state Electronics, 47 (2003), 193 [8] Mitra et al., Journal of Applied Physics vol. 95 (2004), no.1, 69
Ni dots 50nm thick have been evaporated on the n+/p junctions in order to form the front contact, as well as on the p-type epilayer in order to form Schottky barriers on the unimplanted material.
Capano, Applied Surface Science, 184 (2001), 317-322 [4] A.
Poggi et al., ICSCRM 2003, October 2003, Lione (France) [5] Rybiki et al., Journal of Applied Physics, vol.78 (1995), no. 5, 2996 [6] A.A.
Rao et al., Solid-state Electronics, 47 (2003), 193 [8] Mitra et al., Journal of Applied Physics vol. 95 (2004), no.1, 69
Online since: October 2011
Authors: Pei Wen Hao, Chun Wang, Rui Xia Li, Qing Zhang
Introduction
Warm Mix Asphalt(WMA), which is originated in 1995, is a new type of road surface material developed rapidly against the background of energy shortage and global warming[1].The mixing and construction temperature of WMA is between hot mix asphalt (HMA,150~180˚C) and cold mix asphalt(CMA,normal temperature) due to using specific technologies or additives, and its performance could reach up to or be close to the HMA[2].
Virgin Materials SBS modified asphalt is used in the test, and its technical indexes can meet the requirements of Specifications of China[3].
Acknowledgements This work was financially supported by National Natural Science Foundation of China (50578016).
References [1] Hao Liu,Shufang Zhang,Changying Zhang and Zhangcheng Li:Municipal Engineering Technology, Vol.27(4) (2009),p.332~335 [2] Feng Zuo and Fen Ye:Journal of China and Foreign Highway, Vol. 27(6) (2007),p.164~167 [3] Technical Specifications for Construction of Highway Asphalt Pavement[S].edited by Research Institute of Highway Ministry of Transport of the Peoples Republic of China(2005),in press [4] Jian Wu:Journal of Highway and Transportation Research and Development,Vol.25(4) (2008),p.135 [5] Yuanfeng Zhu, Menglan Zeng,Shenghua Wu and Chaofan Wu:Highway Engineering,Vol.35(6) (2010),p.44
Virgin Materials SBS modified asphalt is used in the test, and its technical indexes can meet the requirements of Specifications of China[3].
Acknowledgements This work was financially supported by National Natural Science Foundation of China (50578016).
References [1] Hao Liu,Shufang Zhang,Changying Zhang and Zhangcheng Li:Municipal Engineering Technology, Vol.27(4) (2009),p.332~335 [2] Feng Zuo and Fen Ye:Journal of China and Foreign Highway, Vol. 27(6) (2007),p.164~167 [3] Technical Specifications for Construction of Highway Asphalt Pavement[S].edited by Research Institute of Highway Ministry of Transport of the Peoples Republic of China(2005),in press [4] Jian Wu:Journal of Highway and Transportation Research and Development,Vol.25(4) (2008),p.135 [5] Yuanfeng Zhu, Menglan Zeng,Shenghua Wu and Chaofan Wu:Highway Engineering,Vol.35(6) (2010),p.44
Online since: October 2011
Authors: Jing Lian, Lin Hui Li, Ya Fu Zhou, Xin Han Sun
The natural frequency can be calculated as follows:
The natural frequency of rolling ball is
In the formula, is radius of ball [m], is material density [Kg/m2], is material elastic modulus [N/m2].
The natural frequency of bearing’s ring is In the formula, is node number, is radius between rotation axis and neutral axis [m], is material elastic modulus [N/m2], is moment of inertia about neutral axis [m4], is the quality of unit length [Kg/m].
Acknowledgment This project is supported by China Postdoctoral Science Foundation (20100471431) and National High Technology Research and Development Program of China (2008AA11A140).
[2] Jinlong Wang: Journal of Weifang University, Vol. 9, No. 6(2009), p. 4-6, in Chinese
[6] Guangzhou Zhao, Tianxu Zhang, Yuehuan Wang et.al: Journal of Systems Engineering and Electronics, Vol. 16, No. 3(2005), p. 502-509
The natural frequency of bearing’s ring is In the formula, is node number, is radius between rotation axis and neutral axis [m], is material elastic modulus [N/m2], is moment of inertia about neutral axis [m4], is the quality of unit length [Kg/m].
Acknowledgment This project is supported by China Postdoctoral Science Foundation (20100471431) and National High Technology Research and Development Program of China (2008AA11A140).
[2] Jinlong Wang: Journal of Weifang University, Vol. 9, No. 6(2009), p. 4-6, in Chinese
[6] Guangzhou Zhao, Tianxu Zhang, Yuehuan Wang et.al: Journal of Systems Engineering and Electronics, Vol. 16, No. 3(2005), p. 502-509