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Online since: August 2014
Authors: Zheng Jian Yang, Jia Lei Zhang
Factors to Affect the Eutrophication and Phytoplankton blooms in the Three Gorges Reservoir YANG Zhengjian 1, 2 a , Jialei Zhang2 b * 1 School of Water Resources and Hydropower Engineering, Wuhan University, Wuhan, Hubei, 430072, China 2 College of Resources and Environment , Hubei University of Technology, Wuhan, Hubei, 430068 , China ayangjian198422@163.com, bzhangjialei@mail.hbut.edu.cn * please mark the corresponding author with an asterisk Keywords: Three Gorges Reservoir.
(2) The process to fit the temperature.The temperature is a key factor to affect the phytoplankton growth and succession.
Nutrients, as the material basis, play an important role on the phytoplankton growth.
On the other hand, in the stratification water, the nutrients, as the most important materials for the phytoplankton, couldn’t be transported up to the surface layer from the deep layer.
Acknowledgement This work was financially supported by the Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University (KF2013-12).
Online since: July 2011
Authors: Y. Kondo, N. Miura
Miurab Department of Mechanical Systems Engineering, National Defense Academy, Yokosuka Kanagawa, Japan akondo@nda.ac.jp, bnmiura@nda.ac.jp Key words: Superalloy, Creep, g' precipitates, Dislocation substructure, aging Abstract.
Conf. on Creep and Fracture Engineering Materials and Structures, ed. by J.
Parker, Institute of Materials, London, (2001), 437. 12) N.
Online since: December 2014
Authors: Qiang Li, Yan Zhi Guan, Shi Wang, Bi Ying Shi
Research on Control System of Roll Forming Production Line with Fixed Mould and Moving Roll of Variable Cross-section Biying Shi1, a, Qiang Li1, Yanzhi Guan1, Shi Wang1 1College of Mechanical and Electrical Engineering , North China University of Technology, Beijing,100144, China ashibiying123456@163.com Keyword: fixed mould and moving roll; roll forming; Simotion motion control system Abstract: The roll forming production line with fixed mould and moving roll of variable cross-section is a hydromechatronics line that implements the automatic processing of vehicle parts.
The hydraulic system drives the uncoiler’s feeding wheel to guarantee the plate was tightened, the shielding-material arm keeps the metal plate always in the uncoiler, the pressing-material arm presses the plate tightly, then the handbarrow will be drived back to the original position.
The lifting-material arm and guiding-material arm complete lifting and guiding orderly, the leveling roller group will make the plate level and then put the plate into the punching and edge cutting machine.
More specially, the position feedback is that the grating ruler collect the position signal of the forming frame and the movable frame of the variable cross-section host, through the data acquisition module, then feed the signal back to the controller; the speed feedback is that the rotary encoder collect the motor’s angular velocity signal at some key points of the production line, the signal would be handled by the subsequent circuit, output pulse or code signals, then feed back to the controller by data acquisition module; the input and output feedback is that the buttons,indicating lights of the operating tables and all kinds of detecting elements, through the input and output modules of PLC, then transmit the signal to the controller.
Application of Siemens new motion controller SIMOTION D435 on all steel engineering tyre forming machine.
Online since: June 2013
Authors: Nai Xiu Ding, Li Li Wang, Guang Ye Liu, Pei Yan Zuo, Yong Li
Impedance, phase angel and dissipation factor are the key performance parameters of AC electrical properties.
International Journal of Polymetric Material, 1976, 5: 233-238 [8]J.Yacubowicz, M.Narkis.
Polymer Engineering and Science, 1990, 30: 459-468
Polymer Engineering and Science, 1998, 38: 471-477
New scaling for ac properties of percolating composite materials.
Online since: July 2011
Authors: Qing Chen, Qin Feng Mei, Jin Song Zhou, Zhong Yang Luo
It was thought that the volatilization of water-soluble potassium and sodium was the main release way during pyrolysis process[[] Chunjiang Yu, Yanling Tang, Mengxiang Fang et al.: Journal of Zhejiang University (Engineering Science) Vol. 39 (2005), p. 1435-1438,in Chinese. ].
Straw rich in K and Na was chosen as the experimental material in this study.
In the biomass entrained-flow gasification, the total yield of gaseous and solid products was about 90%[[] Jinsong Zhou, Hui Zhao, Xiaowei Cao et al.: Journal of Zhejiang University (Engineering Science) Vol. 43(2009), p. 128-134,in Chinese. ].
With the addition of additives, there were more or less flocculent materials on the ash surface.
And the residence time of the raw material and additives in the gasifier was too short to have a complete reaction.
Online since: October 2011
Authors: Jia Ping Liu, Fang Wei Tang, Yun Gang An, Da Long Liu, Hui Cheng
Measures for improvements For the abovementioned environmental defects, wood and bamboos can be used as the main materials for the enclosing structure, since these materials are abundant, light weight and good flexibility; meanwhile, mud can be applied onto the wall to enhance the thermal-insulating and sound-insulating effect of the rooms.
The key reason is that insulation measures are applied on the wall mainly, but not on the roof.
Atlanta: American Society of Heating, Refrigerating and Air Conditioning Engineers, Inc.1992 [5] Tsinghua University Building Energy Research Center. 2008 Annual Report on China Building Energy Efficiency.
Online since: July 2023
Authors: Himawan Tri Bayu Murti Petrus, Panut Mulyono, Muhammad Syauqi, Widi Astuti, S.N. Aisyiyah Jennie, Vincent Sutresno Hadi Sujoto
Petrus1,4,d, Vincent Sutresno Hadi Sujoto1,4,e and Panut Mulyono1,f,* 1Department of Chemical Engineering (Sustainable Mineral Processing Research Group), Faculty of Engineering, Universitas Gadjah Mada, Jl.
Introduction Material engineering is a process of modifying material to improve the characteristics of the material itself.
Nanostructure material is one of the material engineering derivations focusing on particle reduction, expecting better physical characteristics by increasing its atomic surface area[1,2].
Saravanan, A review on the progress of nanostructure materials for energy harnessing and environmental remediation, Springer Berlin Heidelberg, 2018. https://doi.org/10.1007/s40097-018-0278-1
Roesyadi, Utilization of Silica from Indonesian Solid Wastes as Catalyst Materials, Key Eng.
Online since: February 2025
Authors: Limbran Sampebatu, Aries Kamolan
Comparison of Fresh Water and Salt Production of Seawater Desalination Using Gas Stoves and Induction Stoves Limbran Sampebatu1,a*, Aries Kamolan2,b 1,2Electrical Engineering, Faculty of Engineering Atma Jaya Makassar University, Jln Tanjung Alang no 23 Makassar, Indonesia aelsampebatu5@gmail.com, barieskamolan@yahoo.com Keywords: Desalination, induction stove, gas stove, freshwater, salt Abstract.
With higher-quality raw materials, the preliminary treatment process becomes less demanding, reducing the consumption of processing chemicals and the number of process equipment, ultimately lowering operational costs and enhancing process performance and stability.
The research was conducted in the Integrated Laboratory of the Faculty of Engineering at Atma Jaya Makassar University.
Induction Stove Tools and Materials The tools and materials used in this research are listed in Table 1.
The lower power consumption with an induction stove compared to a gas stove due to several key factors: 1.
Online since: April 2011
Authors: Domenico Umbrello, D.A. Puleo, O.W. Dillon, I.S. Jawahir, Serafino Caruso, Zheng Wen Pu
Jawahir1, f 1University of Kentucky, Institute for Sustainable Manufacturing and Department of Mechanical Engineering, 523 CRMS Building, Lexington, KY 40506, USA 2University of Calabria, Department of Mechanical Engineering, 87036 Rende (CS), Italy 3University of Kentucky, Center for Biomedical Engineering, Wenner-Gren Lab, Lexington, Kentucky, USA azpu2@engr.uky.edu, bserafino.caruso@unical.it, cd.umbrello@unical.it, dvzn05xpm@verizon.net, epuleo@uky.edu, fjawahir@engr.uky.edu Keywords: Cryogenic machining, surface integrity, severe plastic deformation, grain refinement, DRX, FEM, magnesium alloys Abstract.
Edge radius is a key factor addressed in this study since it was reported to have significant influence on the surface integrity of machined products, especially residual stresses [10].
There is no twinning in the bulk material since the as-received material is a fully annealed sheet.
[9] Yanagimoto J., Karhausen K: Journal of Manufacturing Science and Engineering, Vol. 120 (1998), p. 316
Hasenpouth, “Tensile High Strain Rate Behavior of AZ31B Magnesium Alloy Sheet”, Master Thesis (2010), Mechanical Engineering, University of Waterloo
Online since: November 2016
Authors: Kiran Rangwani, Svetlana Brzev
Seismic Analysis of Confined Masonry Shear Walls Using the Wide Column Model Kiran Rangwani1, a* and Svetlana Brzev2, b 1Graduate Student, Department of Civil Engineering, Indian Institute of Technology Gandhinagar, Palaj, GJ, 382355, India 2Visiting Professor, Department of Civil Engineering, Indian Institute of Technology Gandhinagar, Palaj, GJ, 382355, India akiran@iitgn.ac.in, bsbrzev@iitgn.ac.in Keywords: Confined Masonry, Wide Column Model, Equivalent Frame Model, Linear Elastic Analyses, Seismic analysis Abstract.
Introduction Masonry as a construction material has been accepted worldwide due to its simple construction practice, durability, and cost-effectiveness.
References [1] Brzev S. (2008), “Earthquake-Resistant Confined Masonry Construction”, NICEE, National Information Center of Earthquake Engineering, Indian Institute of Technology Kanpur [2] Meli R., Brzev S. et al (2011), “Seismic Design Guide for Low-Rise Confined Masonry Buildings”, Earthquake Engineering Research Institute (EERI), Oakland, California, USA [3] Jain S.
G. (2002), “ Evaluation of Simplified Models for Lateral Loads Analysis of Unreinforced Masonry Buildings”, Journal of Structural Engineering, ASCE, Vol. 128, No. 7, pp. 890-897 [9] Lagomarsino S., Penna A., Galasco A., and Cattari S. (2013), “TREMURI Program: An Equivalent Frame Model for the Nonlinear Seismic Analysis of Masonry Buildings”, Journal of Engineering Structures, Vol. 56, pp. 1787-1799 [10] Simões A., Bento R., Gago A., and Lopes M. (2012), “Seismic Vulnerability of Old Masonry ‘Gaioleiro’ Building in Lisbon”, Proceeding of 15thWorld Conference of Earthquake Engineering, Lisbon, Portugal [11] Taveras M.
A. (2008), “Revisión de las recomendaciones para modelar y analizar estructuras de mampostería confinada ante carga lateral”, Master's thesis, Graduate of Engineering, UNAM, Mexico [12] NTC-M (2004), “Technical Norms for Design and Construction of Masonry Structures”, Mexico D.F.
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