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Online since: September 2013
Authors: Bi Jia, Ming Rong Han, Long Qiang Huang
Critical Carbon Concentration and Excessively High Bath Temperature for Smelting Ferrochromium in the Argon-Oxygen Furnace Mingrong HAN1, a, Longqiang HUANG2, b, Bi JIA1, c 1School of Metallurgy and Materials Engineering, College of Chongqing Science & Technology, Chongqing 401331, P.R.
Chrome ore and lime which is the main material of slag-making are added in the furnace to protect the refractory lining and to make slag for removing sulfur.
The theoretical calculation is to set up the balance equations of material and heat on the basis of the principle of the physical and chemical reaction in the smelting process and the parameters, in the equations, are selected or calculated on the basis of the theory of physical chemistry and metallurgy process.
The problem of excessively high bath temperature controlled in the process can depend on the following methods to solve: based on the balances of material and heat, combined with AI technology, the dynamic control of oxygen and argon supply can be realized; the carbon dioxide which is blown in the furnace by top blowing through double flow lance is as a coolant instead of chrome ore and scrap.
Journal of Shanghai Institute of Technology: Natural Science, 7(2):87-90(2007)
Online since: September 2013
Authors: Yun Fei En, Fang Fang Song, Sha Xu
Due to degradation characteristic parameters of material in high temperature condition will bring structure vibration resistance performance falling sharply, and the temperature of thermal deformation and thermal stress distribution will also affect the performance and reliability of the tube.
Material Parameters Settings.
The material characteristic parameters changing with temperature are set in paper, as shown in Fig.2.
Fig.2 Input interface of material parameter Applying Loads and Boundary Conditions.
Ravi: submitted to the journal of Applied Surface Science (2006)
Online since: March 2014
Authors: Guang Feng Wang
Most companies only pay attention to the quantity expansion investment, ignoring the quality promotion and the progress of science and technology investment.
We should strengthen the development of new environmental protection materials and products in food machinery.
Journal of Yanbian University, 2001,3
Development Trend of Composite Flexible Packaging Materials [J].
Agricultural Science and Technology and Information, 2011,20, 61-62
Online since: March 2006
Authors: Tae Eun Jin, June Soo Park, Jai Hak Park, Jong Sung Kim, Tae Soon Kim
The fatigue crack growth models of materials express the functional relationship for crack growth rate through the range of the stress intensity factor K
The material type is the carbon steel pipe, which is generally used as the piping material of non-safety classes in PWR power plants.
Acknowledgements The authors are grateful for the partial support provided by a grant from the Korea Science and Engineering Foundation (KOSEF) and Safety and Structural Integrity Research Center at the Sung Kyun Kwan University.
Atluri: Structural Integrity and Durability (Tech Science Press, Forsyth, 1997)
Sih: Journal of Appl.
Online since: September 2013
Authors: Xin Chen, Yi Fang Wen, Feng Nian Zhang
Schematic diagram of Ultrasound honing transformer The wave equation of the conical horn with cylindrical hole in the middle is [2]: In which, is the vibration displacement’s amplitude along the axis, is any position at axis x’s cross-sectional area, is circular frequency, is sound wave’s propagation velocity in the luffing rod materials, is the density of luffing rod materials.
In this experiment, luffing rod material is steel 45 whose sound velocity c is 5157m/s, densityis 7.81×103kg/m3, elastic modulus E is 20.80×1010 N/m2.
[2] Zhongmao Lin.The principle and design of ultrasonic honing.Science Press. 1987
[4] Yundian Zhang.Modern honing technology[J].Science Press, 2007
Journal of Suzhou Vocational University.2006.NO 2.
Online since: July 2014
Authors: Biao Dong
Resources are a collection of entities used in production activities, which is composed of human resources, tools, places, materials, facilities, information resources, service resources and other resources.
In the paper, resources are marked Ress={resource-type-set, resource-attribute}, resource- type-set={human, tool, place, material, information, service, other}, resource-attribute= {resourcesk, structure-attribute, ability-attribute, service-attribute}, where resource-type-set is a collection of resource types, resource-attribute is characterized by a collection of different types of resources, resourcesk is the k-class resources, structure-attribute={ID, name, type, location, information} is structural attributes, including resource ID, name, type, location and information, ability-attribute=(function[]) is a collection of ability attributes that represents functions of the resources, service-attribute=(cost, method, time) is a collection of service attributes that includes service cost, service method, service time.
Service model SM=(task, pro-resource, ability), where task refers to production requirements, i.e., the goals needed to achieve for the completion of certain production activities; pro-resource refers to the resources needed for production processes, including personnel, tools, materials, places, tools, etc.; ability refers to the ability to achieve the desired objectives.
References [1] B.Dong: TELKOMNIKA Indonesian Journal of Electrical Engineering, Vol. 12(6) (2014)
[3] R.Ananthakrishnan, J.Bryan, K.Chard, et al.: Globus Nexus: An identity, profile, and group management platform for science gateways and other collaborative science applications (IEEE, USA 2013)
Online since: December 2012
Authors: Wei Yang Yu, Hui Ning Zhao
0.25 0.25 0.26 0.26 0.23 0.25 Transport, Storage,Postal and Telecommunication Services 0.72 0.58 0.53 0.51 0.44 0.46 Commerce,Catering Services, Material Supply and Marketing 0.20 0.20 0.21 0.21 0.17 0.15 Other Services 0.17 0.18 0.18 0.17 0.18 0.17 Mean 1.17 1.15 1.11 1.04 0.98 0.93 Analysis on influence factors of change of industrial carbon emissions The total industrial carbon emissions are mostly affected by value-added industries and carbon emissions per unit added value in different industries.
Acknowledgements The paper was partly supported by National Social Science Foundation of China in 2011(11BJY020).
Science & Technology and Economy, 2012,25(1):101-105
An Empirical Study on the Relationship of Industry Structure Upgrade and Carbon Emissions in China[J].Journal of Hubei University of Economics,2010,8(5):77-81
Chemical Engineering Science, 2010,65(23):6155–6168
Online since: September 2011
Authors: Zhen Feng Pan, Jia Mei Jin, Fu Qian
The in-plane traveling wave is used to design noncontact USMs [2-4] initially, of which the rotor is driven by air or fluid between stator and rotor without material wear, lead to a high rotating speed with low torque.
Acknowledgements This project is supported by the National Natural Science Foundation of China (No.10874090), NSFC-Guangdong Joint Fund (No.U0934004), and the National Basic Research Program of China (973 Program) (No.2011CB707602).
Zhao: Ultrasonic Motors Technologies and Applications (Science Press, China 2007) [2] J.H.
Zhao: Journal of Wuhan University of Technology.
Materials Science Edition 23 (2008), p. 961-963 [7] Y.X.
Online since: May 2011
Authors: Mian Xing, Xiao Juan Jin, De Zhi Sun, Qiang Zhao, Jun Wen Pu
Lignin Structure Changes in Different Bleaching Processes Qiang Zhao 1,2, Dezhi Sun *2, Junwen Pu 1, Xiaojuan Jin 1, Mian Xing 1 1.College of material Science and Technology,Beijing Forestry University.China 2.College of environmental Science and Engineering,Beijing Forestry University.China renyann@126.com,*:Corresponding author Keywords: Populus nigra L,Lignin structure, FTIR Abstract: To study the bleaching mechanisms of H2O2 bleaching, H2O2 displacement bleaching and H2O2 /TAED bleaching, three kinds of lignin bleached with above processes were obtained.
Therefore, taking the residual lignin as original material to study the chromophore groups reaction have more practical significance.
Experimental Material The CTMP sample of Nigra poplar was provided by Shandong HuaTai Paper Corp.
Liu Shiji.Chemical kinetics of alkaline peroxide brightening of mechanical pulps[J].Chemical Engineering Science,2003,58:2229. 2.
Anna Wuorimaa,Reija Jokela.Recent developments in the stabilization of hydrogen peroxide bleaching of pulps:An overview[J].Nordic Pulp and Paper Research Journal,2006,21(4):435 4.
Online since: October 2014
Authors: Kui Zhang, Hong Dong Zhao, Tong Xi Shen, Jie Huang
Semiconductor devices made of silicon, germanium, gallium arsenide and other materials, can be used as amplifier, rectifier, oscillator.
In this paper, a certain type of semiconductor FET with a massive accurate test data developed and produced by the 13th Research Institute of China Electronics Technology Group Corporation are used to research the distribution of device parameters, given its normal distribution of irrationality. 1 GaAs metal - semiconductor field effect transistor structure In order to make the results of data analysis are representative, the paper selected Metal Semiconductor Field Effect Transistor, a GaAs material, which is widely used in semiconductor devices as an object of study.
Journal of Jiangxi University of Science and Technology, 2008, 29(4): 5-8
Nonparametric Statistics with Applications to Science and Engineering[M].
Computer Science and Automation Engineering, Valdosta, USA, 2011: 542-545
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