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Online since: March 2011
Authors: V. Smukala, B. Buff, D. Kreimeier, J. Zhu, C. Magnus
Although better geometric accuracy can be achieved, a longer product delivery time and higher material costs are unavoidable.
The geometric deviation of the formed workpieces is within 2.5mm, which is mainly caused by the robots´ elasticity and the springback effect of the material [9].
First, the path planning process will be connected to a data base system through the API in the CAM-software, in which all the paths could be stored according to different target geometries, used tools, material and forming strategies.
Muzzupappa: Journal of Materials Processing Technology, 2008, Vol. 162, p. 156-162 [3] H.
Zhang: Key Engineering Materials, 2007, Vol. 344, p. 599-605 [6] P.
The geometric deviation of the formed workpieces is within 2.5mm, which is mainly caused by the robots´ elasticity and the springback effect of the material [9].
First, the path planning process will be connected to a data base system through the API in the CAM-software, in which all the paths could be stored according to different target geometries, used tools, material and forming strategies.
Muzzupappa: Journal of Materials Processing Technology, 2008, Vol. 162, p. 156-162 [3] H.
Zhang: Key Engineering Materials, 2007, Vol. 344, p. 599-605 [6] P.
Online since: October 2011
Authors: Ying Li, Ting Ting Guo, Pan Pan Li
Study on Ecological Footprint Calculation of Beijing's Urban Domestic Garbage
Ying Li1, a, Tingting Guo2,b, Panpan Li 3,c
Key Laboratory of Urban Stormwater System and Water Environment (Beijing University of Civil Engineering and Architecture), Ministry of Education, Beijing, 100044, China
a liy@bucea.edu.cn
Keywords: Beijing urban, domestic garbage, ecological footprint, calculation
Abstract: This article was based on Beijing urban garbage collection and disposal methods, namely, vehicle transport, landfill, composting and incineration, etc.
Ecological Footprint Calculation of Greenhouse Gas Emissions In Domestic Garbage Landfill Dispose Landfill can prevent pollution of landfill leachate and harmful gases by engineering and technical measures, which is an ultimate method of a garbage disposal that is public health safe and environment harmless.
Table 2 The calculation of DOC for solid waste in rural area in Beijing Component paper, fiber garden, garden wood contaminants Food contaminants Wood products Ratio (%) 13.53 8.6 63.39 1.78 DOC coefficient 0.4 0.17 0.15 0.3 DOC=0.4×13.53%+0.17×8.6%+0.15×63.39%+0.3×1.78%=0.169 Table 3 Calculation of methane correction factor Type of landfill site waste disposal rate (%) of landfill site default correction factor values Management X 1 X Non-management - the deep (≥ 5m) Y 0.8 0.8Y Non-management - shallow (<5m) Z 0.4 0.4Z Total X+Y+Z=1 — X+0.8Y+0.4Z Defaults — — 0.6 Note ①: Management landfill must have a pollution control device (there are clean and fire control devices, if domestic garbage are dumped directly to a particular landfill site), and includes at least one of the following devices: cover material, mechanical compaction or contaminants hierarchical processing.
References [1] Haiying Li.Characteristics of Domestic Waste and Suggestion for Waste Classification in Beijing Rural Area .Environmental Sanitation Engineering,2008,(2):35~38(In Chinese) [2] Yanmin Zhang.
[14] Chunping Li,Guoxue Li,Yuchun Li.Fuzzy mathematics-based evaluation of Municipal Solid Waste compost maturities in different spaces in static tunnel from Nangong compost plant[J].Transactions of the Chinese Society of Agricultural Engineering ,2007,23(2):201~206(In Chinese) [15] Guoxue Li,Fusuo Zhang.Soild waste composting and Organic compound fertilizer production[M].Beijing:Chemical Industry Perss,2000(In Chinese) [16] Guangyan Li,Xuhong Sun,Zesheng Zhang.Environment impact assessment of composting gas in garbage composting plant[J].Urban Environment and Ecology,2001,14(4):31~35(In Chinese) [17] Emmanuel Ngnikam, Emile Tanawa, Patrick Rousseaux.Evaluation of the potentialities to reduce greenhouse gases(GHG) emissions resulting from various treatments of municipal solid wastes(MSW) in moist tropical climates:application to Yaoundé [J].Waste Management Research,2001,19:501~503
Ecological Footprint Calculation of Greenhouse Gas Emissions In Domestic Garbage Landfill Dispose Landfill can prevent pollution of landfill leachate and harmful gases by engineering and technical measures, which is an ultimate method of a garbage disposal that is public health safe and environment harmless.
Table 2 The calculation of DOC for solid waste in rural area in Beijing Component paper, fiber garden, garden wood contaminants Food contaminants Wood products Ratio (%) 13.53 8.6 63.39 1.78 DOC coefficient 0.4 0.17 0.15 0.3 DOC=0.4×13.53%+0.17×8.6%+0.15×63.39%+0.3×1.78%=0.169 Table 3 Calculation of methane correction factor Type of landfill site waste disposal rate (%) of landfill site default correction factor values Management X 1 X Non-management - the deep (≥ 5m) Y 0.8 0.8Y Non-management - shallow (<5m) Z 0.4 0.4Z Total X+Y+Z=1 — X+0.8Y+0.4Z Defaults — — 0.6 Note ①: Management landfill must have a pollution control device (there are clean and fire control devices, if domestic garbage are dumped directly to a particular landfill site), and includes at least one of the following devices: cover material, mechanical compaction or contaminants hierarchical processing.
References [1] Haiying Li.Characteristics of Domestic Waste and Suggestion for Waste Classification in Beijing Rural Area .Environmental Sanitation Engineering,2008,(2):35~38(In Chinese) [2] Yanmin Zhang.
[14] Chunping Li,Guoxue Li,Yuchun Li.Fuzzy mathematics-based evaluation of Municipal Solid Waste compost maturities in different spaces in static tunnel from Nangong compost plant[J].Transactions of the Chinese Society of Agricultural Engineering ,2007,23(2):201~206(In Chinese) [15] Guoxue Li,Fusuo Zhang.Soild waste composting and Organic compound fertilizer production[M].Beijing:Chemical Industry Perss,2000(In Chinese) [16] Guangyan Li,Xuhong Sun,Zesheng Zhang.Environment impact assessment of composting gas in garbage composting plant[J].Urban Environment and Ecology,2001,14(4):31~35(In Chinese) [17] Emmanuel Ngnikam, Emile Tanawa, Patrick Rousseaux.Evaluation of the potentialities to reduce greenhouse gases(GHG) emissions resulting from various treatments of municipal solid wastes(MSW) in moist tropical climates:application to Yaoundé [J].Waste Management Research,2001,19:501~503
Online since: June 2014
Authors: Xin Yu Mao, Xiao Hou Shao, Jiang Qiang Mao, Chao Yin, Long Wang, Hao Bo Sun, Zhong Lin Tang, Ting Ting Chang
Environment Research with Progress of Bioremediations for Aquaculture Effluent
Xinyu Mao1,2a, Xiaohou Shao1,2b, Jianqiang Mao3c, Chao Yin1,2 Long Wang1,2, Haobo Sun 3, Zhonglin Tang3,Tingting Chang1,2
1Key Laboratory of Efficient Irrigation-Drainage and Agricultural Soil-Water Environment in Southern China of Ministry of Education, Hohai University, Nanjing 210098,China. 2 College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098 China. 3Modern Fishery Science Co., Ltd, Nanjing, 210000, China.
Biotechnology and Bioprocess Engineering, 14:238-247 [13] Leila Chebil Ajjabi,Lassaad Chouba,2009.
Journal of Hazardous Materials,213-214:123-132
Journal of Environmental Science and Health, Part A: Toxic/Hazardous Substances and Environmental Engineering,46(7):789-794
Environmental Engineering Science,26(1):97-102.
Biotechnology and Bioprocess Engineering, 14:238-247 [13] Leila Chebil Ajjabi,Lassaad Chouba,2009.
Journal of Hazardous Materials,213-214:123-132
Journal of Environmental Science and Health, Part A: Toxic/Hazardous Substances and Environmental Engineering,46(7):789-794
Environmental Engineering Science,26(1):97-102.
Online since: August 2013
Authors: Guo Min Tang, Yun Chen, Peng Cao, Shuang Wang
Materials and methods
Experimental setup
The experimental setup, namely, the BAF (Fig.1), made from organic glass and for 0.2 m in inner diameter, 3.5m in height, was built at the research site with sampling valve set each 0.3m vertically.
Results and discussions The effect of the ammonia nitrogen volumetric loads on the ammonia nitrogen removal Referring to the relevant engineering practices of the advanced treatment of the ammonia nitrogen in other industrial wastewater, the ammonia nitrogen removal performance at the different ammonia nitrogen volumetric loads was investigated when the ratio of air to water was controlled at 17:1, the ammonia nitrogen volumetric loads ranged from 0.16 kg•m-3d-1 to 0.30 kg•m-3d-1 .The results were depicted in Fig.2(a).
The effect of the ratio of air and water on the ammonia nitrogen removal Referring to the relevant engineering practices of the advanced treatment of ammonia nitrogen in other industrial wastewater, the ammonia nitrogen removal performance at the different ratio of air and water was investigated when the ammonia nitrogen volumetric load was controlled at 0.22 kg•m-3d-1, the ratio of air to water ranged from17:1 to 21:1 .The results were depicted in Fig.2(b).
Based on engineering practices and relevant documents, the back-wash mode of BAF was as following: after running regularly for 36 hours under the optimal conditions, firstly, the backwashing of air lasted for five minutes with the air strength 10L•m-2s-1.
Technol Vol.100(2009), p. 4623 [5] Carrera J, Vicent T, Lafuente J: Process Biochemistry Vol.39(2004),p. 2035 [6] Wang Lili, Hu Yongyou: Environmental Pollution and Control Vol 28(2006), p. 257 (In Chinese) [7] Hong-Duck Ryu , Daekeun Kim and Heun-Eun Lim : Process Biochemistry Vol.43(2008),p. 729 [8]Payraudeau M, Paffoni C and Gousailles M: Water Science and Technology Vol.41(2000), p. 21 [9]Won-Seok Chang , Hung-Thuan Tran and Doo-Hyun Park: Journal of Industrial and Engineering Chemistry Vol.15(2009), p. 524
Results and discussions The effect of the ammonia nitrogen volumetric loads on the ammonia nitrogen removal Referring to the relevant engineering practices of the advanced treatment of the ammonia nitrogen in other industrial wastewater, the ammonia nitrogen removal performance at the different ammonia nitrogen volumetric loads was investigated when the ratio of air to water was controlled at 17:1, the ammonia nitrogen volumetric loads ranged from 0.16 kg•m-3d-1 to 0.30 kg•m-3d-1 .The results were depicted in Fig.2(a).
The effect of the ratio of air and water on the ammonia nitrogen removal Referring to the relevant engineering practices of the advanced treatment of ammonia nitrogen in other industrial wastewater, the ammonia nitrogen removal performance at the different ratio of air and water was investigated when the ammonia nitrogen volumetric load was controlled at 0.22 kg•m-3d-1, the ratio of air to water ranged from17:1 to 21:1 .The results were depicted in Fig.2(b).
Based on engineering practices and relevant documents, the back-wash mode of BAF was as following: after running regularly for 36 hours under the optimal conditions, firstly, the backwashing of air lasted for five minutes with the air strength 10L•m-2s-1.
Technol Vol.100(2009), p. 4623 [5] Carrera J, Vicent T, Lafuente J: Process Biochemistry Vol.39(2004),p. 2035 [6] Wang Lili, Hu Yongyou: Environmental Pollution and Control Vol 28(2006), p. 257 (In Chinese) [7] Hong-Duck Ryu , Daekeun Kim and Heun-Eun Lim : Process Biochemistry Vol.43(2008),p. 729 [8]Payraudeau M, Paffoni C and Gousailles M: Water Science and Technology Vol.41(2000), p. 21 [9]Won-Seok Chang , Hung-Thuan Tran and Doo-Hyun Park: Journal of Industrial and Engineering Chemistry Vol.15(2009), p. 524
Online since: February 2012
Authors: Li Na Fu, Ke Gang Hao
Design & Measure RUP Development Case Using the Zachman Framework as an Aid
Lina Fu1, a, Kegang Hao1,b
1 Software Engineering Institute, North-West University, Shaanxi, Xi’an, 710127, China
afulina_97@163.com, bhkg@nwu.edu.cn
Keywords: Zachman Framework, RUP, Artifact-driven, Measurement, Development Case
Abstract.
The RUP captures a number of modern software engineering best practices.
The first key principle is “adapting RUP to organization and project”.
Zachman Framework According to Zachman, his model describes the artifacts of a software engineering process.
The End User Support Material, artifact of the cell ‘M’ refers to the Boundary Classes of the row above.
The RUP captures a number of modern software engineering best practices.
The first key principle is “adapting RUP to organization and project”.
Zachman Framework According to Zachman, his model describes the artifacts of a software engineering process.
The End User Support Material, artifact of the cell ‘M’ refers to the Boundary Classes of the row above.
Online since: February 2012
Authors: Nan Zhao, Wen Ming Cheng, Fang Liu
Finite Element Analysis and Optimization of Power-assisted Structure of Wearable Human Lower Limb Exoskeleton
Fang Liu1, a, Wenming Cheng 2,b and Nan Zhao3,c
1 School of Mechanical Engineering of South-west Jiaotong University, Chengdu, Sichuan Province, Mainland China, Zip Code: 610031
2 School of Mechanical Engineering of South-west Jiaotong University, Chengdu, Sichuan Province, Mainland China, Zip Code: 610031
3 School of Mechanical Engineering of South-west Jiaotong University, Chengdu, Sichuan Province, Mainland China, Zip Code: 610031
aliufang@swjtu.edu.cn, bwmcheng@swjtu.edu.cn, czhaonan1314@163.com
Keywords: Human body exoskeleton; Three- Hinge Mechanism; ANSYS; Modal Analysis
Abstract.
Therefore, the analysis of human postures in movement is directly related to the research of Wearable exoskeleton’s motion trails and load carrying situations, and it is the key link in Wearable exoskeleton researches [5].
Therefore, it is necessary to make local optimization design on the connection between the lower calf and ankle joint: (1) Use alloy materials to make the lower calf specially to realize the connection between the lower calf and ankle joint; (2) The variable cross-sections and pinholes of the model should all get passivation treatment.
References [1] Adam Zoss, H.Kazerooni and Andrew Chu, On the Mechanical Design of the Berke1ey Lower Extremity Exoskeleton, Department of Mechanical Engineering University of California, Berkeley, CA, 94720, USA IEEE 2005 [2] H Kazerooni, Jean-Louis Charles Racine, Lihua Huang and Ryan Steger.
Therefore, the analysis of human postures in movement is directly related to the research of Wearable exoskeleton’s motion trails and load carrying situations, and it is the key link in Wearable exoskeleton researches [5].
Therefore, it is necessary to make local optimization design on the connection between the lower calf and ankle joint: (1) Use alloy materials to make the lower calf specially to realize the connection between the lower calf and ankle joint; (2) The variable cross-sections and pinholes of the model should all get passivation treatment.
References [1] Adam Zoss, H.Kazerooni and Andrew Chu, On the Mechanical Design of the Berke1ey Lower Extremity Exoskeleton, Department of Mechanical Engineering University of California, Berkeley, CA, 94720, USA IEEE 2005 [2] H Kazerooni, Jean-Louis Charles Racine, Lihua Huang and Ryan Steger.
Online since: January 2011
Authors: Hong Jun Han, Chang Lei Dai, Si Miao Sun, Zhi Jun Li
Water Resources and Water Environment Influencing Factors of
Biomass Energy Plant (Generating by Straw) in Frigid Zone
DAI Chang-lei1,2,3,a, SUN Si-miao2,3,b, HAN Hong-jun4,c, LI Zhi-jun2,3
1Postdoctoral Scientific Research Station of Civil Engineering, Harbin Institute of Technology, Harbin, China
2School of Water Conservancy and Electric-power, Heilongjiang University, Harbin, China
3Institute of Frigid Zone Groundwater, Heilongjiang University, Harbin, China
4State Key Laboratory of Urban Water Resources and Environment, Harbin Institute of Technology, Harbin, China
adaichanglei@126.com, bsunsimiao_work@126.com, c han13946003379@163.com, dlizhijun78@163.com
Keywords: Water resources demonstration; water resources; water environment; biomass energy cogeneration plant; frigid zone
Abstract.
With respect to sewerage engineering it is accustomed to be called “recycled water”, together with “reused water” when referring to sewage factories.
Training Materials for Water Resources Demonstration of Construction Projects
Journal of Heilongjiang Hydraulic Engineering, 2009, vol.36 (2), p.72-75
Journal of Heilongjiang Hydraulic Engineering,2009, vol.36 (4), p. 113-115
With respect to sewerage engineering it is accustomed to be called “recycled water”, together with “reused water” when referring to sewage factories.
Training Materials for Water Resources Demonstration of Construction Projects
Journal of Heilongjiang Hydraulic Engineering, 2009, vol.36 (2), p.72-75
Journal of Heilongjiang Hydraulic Engineering,2009, vol.36 (4), p. 113-115
Online since: August 2013
Authors: Hong Kai Chen, Hong Mei Tang, Xiao Ying He, Xian Tao Zhao
Study on Failure Mechanism of Gongjiafang Bank Slope in Wu Gorge of the Three Gorges, the Yangtze River, China
CHEN Hong-kai1, a, TANG Hong-mei2,b, HE Xiao-ying3,c and ZHAO Xian-tao 4,d
1Department of Geotechnical and Geological Engineering,Chongqing Jiaotong University,Chongqing 400074, China
2Department of Geotechnical and Geological Engineering,Chongqing Jiaotong University,Chongqing 400074, China
3Department of Geotechnical and Geological Engineering,Chongqing Jiaotong University,Chongqing 400074, China
4Department of Geotechnical and Geological Engineering,Chongqing Jiaotong University,Chongqing 400074, China
achenhongkairht@sina.com, bhmtang6778@sina.com, cdiewucanxue@126.com, dbravezxt6@163.com
Keywords: failure mechanism; storage period; new tectonic stress field; soil immersion; Gong Jiafang bank slop
Abstract.
Broken rockmass failed generally along with the first group fissure (3) Regional new tectonic stress field controls the macroscopic law of of Gong Jiafang bank slope failure,that is,the first group of fissure is consistent with Max 2 shear zone in new tectonic stress field ,which is the key factor for the development of unloading fissure of bank slope .
Advanced Materials Research2012;340:126-129
Broken rockmass failed generally along with the first group fissure (3) Regional new tectonic stress field controls the macroscopic law of of Gong Jiafang bank slope failure,that is,the first group of fissure is consistent with Max 2 shear zone in new tectonic stress field ,which is the key factor for the development of unloading fissure of bank slope .
Advanced Materials Research2012;340:126-129
Online since: March 2020
Authors: Ahmed Hassan, L.M. Abd el-Hafez, Amr H. Badawy, Hala El-Kady
Badawy1,2,a*, Ahmed Hassan2,4,b, Hala El-Kady1,c, L.M.Abd-El Hafez3,4,d
1Department of Civil Engineering, National Research Centre, Egypt
2Faculty of Engineering, Beni-Suef University, Egypt
3Civil Engineering Department - Minia University, Egypt
4Civil Engineering Department - Nahda University, Egypt
aamrhussein94@hotmail.com, bahmedhb96@yahoo.com, chala.elkady@gmail.com, dlaila.shaddy@nub.edu.eg
*Corresponding Author: Amr h.
The mechanical and chemical characteristics of the used materials were evaluated.
Details of the beams geometry, materials, casting and testing methodology are described.
ANCHORAGE ZONE DETAILS: MATERIALS FOR ANCHORAGE PLATE WERE NODULAR CAST IRON, WEDGES: 20CRMNTI STEEL.
El-Mihilmy, Concrete Shear Strength Of Pre-stressed Beams, Journal Of Engineering And Applied Science, Faculty Of Engineering, Cairo University, Vol. 54, No. 3, Pp. 319-338, (2007)
The mechanical and chemical characteristics of the used materials were evaluated.
Details of the beams geometry, materials, casting and testing methodology are described.
ANCHORAGE ZONE DETAILS: MATERIALS FOR ANCHORAGE PLATE WERE NODULAR CAST IRON, WEDGES: 20CRMNTI STEEL.
El-Mihilmy, Concrete Shear Strength Of Pre-stressed Beams, Journal Of Engineering And Applied Science, Faculty Of Engineering, Cairo University, Vol. 54, No. 3, Pp. 319-338, (2007)
Online since: May 2011
Authors: Chang Hong Li, Ji Liang Zhang
Because of wide range of acoustic band for a variety of materials, AE also be called the stress wave emission and microseismic in geology[1].
Then, the deformation characteristics of rock after strength peak and its engineering significance have been revealed[8].
Many researchers try to establish the reliable experience relationship between AE and other properties of materials.
[4] Ru Zhang, Heping Xie, Jianfeng Liu, et al.: Chinese Journal of Rock Mechanics and Engineering Vol. 25(2006), p. 2584–2588, in Chinese
[6] Xingdong Zhao, Yuanhui Li, Rueipu Yuan, et al.: Chinese Journal of Rock Mechanics and Engineering Vol. 26(2007), p. 944–950, in Chinese
Then, the deformation characteristics of rock after strength peak and its engineering significance have been revealed[8].
Many researchers try to establish the reliable experience relationship between AE and other properties of materials.
[4] Ru Zhang, Heping Xie, Jianfeng Liu, et al.: Chinese Journal of Rock Mechanics and Engineering Vol. 25(2006), p. 2584–2588, in Chinese
[6] Xingdong Zhao, Yuanhui Li, Rueipu Yuan, et al.: Chinese Journal of Rock Mechanics and Engineering Vol. 26(2007), p. 944–950, in Chinese