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Online since: August 2013
Authors: Xin Zhang
Resistance temperature sensor is a wide range of temperature measurement devices, and any other temperature sensor unparalleled advantage in the range of -50 to 600 degrees, high accuracy, good stability, resistance to environmental interference [3].The two conductors of different materials, the thermocouple temperature sensor is interconnected at some point, this connection point heating potential difference appears in the unheated parts.
In fact, allowable working pressure not only with the protection of the diameter of the tube material, wall thickness, its structure, installation method, into the depth of the measured medium flow rate and the kind.
[2] M.J.Tang .ARM-based programmable logic controller design,Nanjing University of Information Science, 2007
S.X.Fang.The industrial network topology and its protocol analysis ,Journal of Computer Applications, 2002 (4):
In fact, allowable working pressure not only with the protection of the diameter of the tube material, wall thickness, its structure, installation method, into the depth of the measured medium flow rate and the kind.
[2] M.J.Tang .ARM-based programmable logic controller design,Nanjing University of Information Science, 2007
S.X.Fang.The industrial network topology and its protocol analysis ,Journal of Computer Applications, 2002 (4):
Online since: September 2013
Authors: Li Qin Sun, Zhong Xing Li, Xu Feng Shen, Hua Wei Zhao
(1)
Where P, V,T represent the pressure, volume and absolute temperature of gas in balance; n, r represent the amount of gas material and the gas constant; a, b are the Vander Waals' constant; k is the polytropic index.
Put the above formula into (2), then the simple formula is: (3) The amount of gas material is: put it into (3), getting the following formula: (4) The resilience of the air spring is: (5) Where Pat is the atmosphere pressure.
The main and attach chamber could be got from the formula (1): (7) (8) The volumetric changes of the main or attach chamber are:,, the amount of gas material of the auxiliary is: , (9) take the gas in the pipe as object of study: (10) In the formulas from (7) to (10):where q is the gas flow, P0 is the initial gas density, Rβ, is the flow resistance coefficient, β is the damping characteristics, in the formula: Ap is the area of surge pipe.
Journal of Liaocheng Teachers University, 2003, 16(3): 25-26
University of Science & Technology China press, 2005, 8(1): 208-210.
Put the above formula into (2), then the simple formula is: (3) The amount of gas material is: put it into (3), getting the following formula: (4) The resilience of the air spring is: (5) Where Pat is the atmosphere pressure.
The main and attach chamber could be got from the formula (1): (7) (8) The volumetric changes of the main or attach chamber are:,, the amount of gas material of the auxiliary is: , (9) take the gas in the pipe as object of study: (10) In the formulas from (7) to (10):where q is the gas flow, P0 is the initial gas density, Rβ, is the flow resistance coefficient, β is the damping characteristics, in the formula: Ap is the area of surge pipe.
Journal of Liaocheng Teachers University, 2003, 16(3): 25-26
University of Science & Technology China press, 2005, 8(1): 208-210.
Online since: March 2011
Authors: Khalil Khalili, Seyed Yousef Ahmadi-Brooghani, Amir Ashrafi
The material of the tube was annealed copper, and a deformable solid model was used to considered deformation of tube during the simulation.
The material properties used are shown in Table 1.
The material properties of annealed C12200 copper alloy Yield strength [MPa] 67.7 Ultimate strength [MPa] 224.45 Young module [GPa] 115 Strength coefficient (k) [GPa] 0.4426 Exponent coefficient (n) 0.368 Fig 5.Finite element model used in the simulations The friction coefficient between the die and tube was set to 0.04.
Farzin, and S.J, Iranian Journal of Science & Technology, Transaction B, Engineering, Vol. 32, No.
The material properties used are shown in Table 1.
The material properties of annealed C12200 copper alloy Yield strength [MPa] 67.7 Ultimate strength [MPa] 224.45 Young module [GPa] 115 Strength coefficient (k) [GPa] 0.4426 Exponent coefficient (n) 0.368 Fig 5.Finite element model used in the simulations The friction coefficient between the die and tube was set to 0.04.
Farzin, and S.J, Iranian Journal of Science & Technology, Transaction B, Engineering, Vol. 32, No.
Online since: August 2013
Authors: Xiao Liu, Pei Chao Chen, Bing Wang
In the decoration of the room, excessive use of glass materials will make people would worry about the quality of glass material, and on the other hand, people will worry about privacy issues, and may be peeping outside, etc..
② The psychological needs of different class
Different classes mentioned here mainly refer to the different social role.
CHINA SAFETY SCIENCE JOURNAL, 2007, 17(8):70-75 [2] Wen Chai, Brief Talk about the Prospective Need of Interior Environment [J].
CHINA SAFETY SCIENCE JOURNAL, 2007, 17(8):70-75 [2] Wen Chai, Brief Talk about the Prospective Need of Interior Environment [J].
Online since: June 2013
Authors: Hai Bo Ma, Quan Yuan, Xia Zhang, Xu Huang
Bioprosthetic heart valve consists of valvular leaflets, supporting stent and sutural ring valvular leaflets made with polymer materials of porcine or bovine pericardial can be opened or closed by ejected blood. [1-2].
Finite Division We assume valve leaflets material’s modulus of elasticity which is 5.4Mpa and its Poisson’s ratio is 0.48 and the thickness of the valve leaflets is 0.5mm.The solid model of the valve leaflets is divided into grid by subprogram of ANSYS software as shown in Fig.3 Figure 3(a).
Acknowledgment This work was supported by grants from Natural Science Foundation of State (No: 31170906) and Clean Mechanical Manufacture (Shandong University)Ministry of Education.
[2] Quan Yuan, Chengrui Zhang, Xiaowei Wang, “Geometrical Design and Finite Element Analysis on the Bioprosthetic Heart Valve,” International Journal of Innovative Computing, Information and Control (IJICIC), vol.3, 2007, pp.1-11
Finite Division We assume valve leaflets material’s modulus of elasticity which is 5.4Mpa and its Poisson’s ratio is 0.48 and the thickness of the valve leaflets is 0.5mm.The solid model of the valve leaflets is divided into grid by subprogram of ANSYS software as shown in Fig.3 Figure 3(a).
Acknowledgment This work was supported by grants from Natural Science Foundation of State (No: 31170906) and Clean Mechanical Manufacture (Shandong University)Ministry of Education.
[2] Quan Yuan, Chengrui Zhang, Xiaowei Wang, “Geometrical Design and Finite Element Analysis on the Bioprosthetic Heart Valve,” International Journal of Innovative Computing, Information and Control (IJICIC), vol.3, 2007, pp.1-11
Online since: May 2015
Authors: Mircea Neagoe, Codruta Jaliu, Radu G. Saulescu, Oliver Climescu
The materials were selected and the bearings and the chain type were chosen from catalogues [2].
[2] American Chain Association, Standard Handbook of Chains: Chains for Power Transmission and Material Handling, 2nd Edition, Dekker Mechanical Engineering, 2005
Mechanism and Machine Theory Journal, Volume 46, Issue 12, (2011) 1888-1900
Mechanism and Machine Science, Vol. 13, (2013), 259-268.
[2] American Chain Association, Standard Handbook of Chains: Chains for Power Transmission and Material Handling, 2nd Edition, Dekker Mechanical Engineering, 2005
Mechanism and Machine Theory Journal, Volume 46, Issue 12, (2011) 1888-1900
Mechanism and Machine Science, Vol. 13, (2013), 259-268.
Online since: November 2011
Authors: Jin Wu Wu, Ling Zhi Huang
The stress-strain relations of orthotropic material are given as:
The matrix from of above equation is: (4)
Where , is respectively Young’s modulus at -direction, , is respectively Poisson ratio atdirection,,, is respectively shear modulus at ,, surface.
For convenience, the following nondimensionalized natural frequency is used in presenting the numerical results in graphical and tabular forms: 3.1 Accuracy Analysis Consider an antisymmetric six ply laminated plat of a/h=10,Laying laminate material is graphite / epoxy material withE1/E2=40,G31=G21=0.6E22,G23=0.35E2, .
Acknowledgment This work is supported by the Aeronautical Science Foundation of China (Grant No. 2011ZA56002).
Journal of Sound and Vibration, 1979, 66(4): 565- 576
For convenience, the following nondimensionalized natural frequency is used in presenting the numerical results in graphical and tabular forms: 3.1 Accuracy Analysis Consider an antisymmetric six ply laminated plat of a/h=10,Laying laminate material is graphite / epoxy material withE1/E2=40,G31=G21=0.6E22,G23=0.35E2, .
Acknowledgment This work is supported by the Aeronautical Science Foundation of China (Grant No. 2011ZA56002).
Journal of Sound and Vibration, 1979, 66(4): 565- 576
Online since: June 2012
Authors: Chao Yong Yan, Yao Jun Yu
This problem becomes even worse with the increasing requirements of product accuracy, the more frequent application of new materials and new machining operations, as, for instance, high-speed and precision machining of hardened steel components [2].
In the turning process, there are system factors (such as tool wear, thermal deformation, etc.) and random factors (such as system vibration, rough material, etc.) impacting the turning quality.
Peng:Symbiosis of modelling and sensing to improve the accuracy of workpieces in small batch machining operations.International Journal of Advanced Manufacturing Technology,vol. 15(1999), p. 699-710
Kishawy:An experimental evaluation of cutting temperatures during high speed machining of hardened D2 tool steel.Machining Science and Technology,vol. 6(2002),p. 67-79
In the turning process, there are system factors (such as tool wear, thermal deformation, etc.) and random factors (such as system vibration, rough material, etc.) impacting the turning quality.
Peng:Symbiosis of modelling and sensing to improve the accuracy of workpieces in small batch machining operations.International Journal of Advanced Manufacturing Technology,vol. 15(1999), p. 699-710
Kishawy:An experimental evaluation of cutting temperatures during high speed machining of hardened D2 tool steel.Machining Science and Technology,vol. 6(2002),p. 67-79
Online since: January 2014
Authors: Michal Kraus, Darja Kubečková
Introduction
The buildings sector contributes significantly to the energy and material consumption.
Table 1: SWOT analysis of building airtightness Strengths Weaknesses - The increased life of the structure 0.1 - The increased purchase costs 0.4 - The reduction energy consumption 0.4 - The need of HVAC equipment 0.3 - The elimination of mold inside the structure 0.2 - The need to inspection airtightness measurements 0.2 - The exclusion of interstitial condensation 0.3 - The increased cost of training craftsmen 0.1 Opportunities Threats - Possibility of reducing global energy consumption 0.5 - Escalation of trade policy of energy companies 0.8 - Possibility of reducing global green gas emissions 0.3 - Possible to feeling constraint and non-breathability. 0.2 - Development of building materials and technology 0.2 Conclusions The points of SWOT analysis show that sufficiently airtight building envelope is an important competitive advantage compared to conventional construction.
[2] Directive 2010/31/EU of the European Parliament and of the Council of 19 May 2010 on the energy performance of building (recast), 2010, Official Journal of the EU, L153
Singapore: Global Science and Technology Forum (2013)
Table 1: SWOT analysis of building airtightness Strengths Weaknesses - The increased life of the structure 0.1 - The increased purchase costs 0.4 - The reduction energy consumption 0.4 - The need of HVAC equipment 0.3 - The elimination of mold inside the structure 0.2 - The need to inspection airtightness measurements 0.2 - The exclusion of interstitial condensation 0.3 - The increased cost of training craftsmen 0.1 Opportunities Threats - Possibility of reducing global energy consumption 0.5 - Escalation of trade policy of energy companies 0.8 - Possibility of reducing global green gas emissions 0.3 - Possible to feeling constraint and non-breathability. 0.2 - Development of building materials and technology 0.2 Conclusions The points of SWOT analysis show that sufficiently airtight building envelope is an important competitive advantage compared to conventional construction.
[2] Directive 2010/31/EU of the European Parliament and of the Council of 19 May 2010 on the energy performance of building (recast), 2010, Official Journal of the EU, L153
Singapore: Global Science and Technology Forum (2013)
Online since: January 2014
Authors: Pei Xue, Jun Yuan, Jin Wang, Xin Zhang, Jing Jing Fan
The development of shale of the two group strata, provides a strong material base for generated oil and gas.
Reference [1] Information on http://www.eia.gov [2] Yuan Jun, Wang Yanbin: Accumulation factors Analysis of Coal-Bearing Strata Shale Gas in Qinshui Basin, dvanced Materials Research Vol. 868 (2014) pp 121-124
(In Chinese) [4] Dong Bingxiang: Research of the Petrophysical Property of Shale Gas Reservoirs, Journal of Xi'an Shiyou University (Natural Science Edition), Vol. 28 (1) (2013), p.25-28.
Reference [1] Information on http://www.eia.gov [2] Yuan Jun, Wang Yanbin: Accumulation factors Analysis of Coal-Bearing Strata Shale Gas in Qinshui Basin, dvanced Materials Research Vol. 868 (2014) pp 121-124
(In Chinese) [4] Dong Bingxiang: Research of the Petrophysical Property of Shale Gas Reservoirs, Journal of Xi'an Shiyou University (Natural Science Edition), Vol. 28 (1) (2013), p.25-28.