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Online since: June 2021
Authors: Farhood Najafi, Sotoudeh Davaie, Sima Shahabi, Sanaz Vali, Marjan Behroozibakhsh
Based on the results, addition of BG to CPC improved bioactivity properties of CPC material and did not affect its solubility adversely.
It has different properties such as biocompatibility, antimicrobial and anti-fungal properties, injection capability, suitable flooding, convenient clinical application and the formation of dentin bristles.
They require additives to improve the physical and mechanical properties, increase the biocompatibility properties, and induce better bone formation and the formation of a suitable dentin bridge in the direct pulp capping procedure [19].
Considering the above mentioned factors, it seems necessary to conduct further clinical studies to clarify the function of CPC/BG in the oral environment.
Hampshire, Mechanical Properties, Structure, Bioactivity and Cytotoxicity of Bioactive Na-Ca-Si-PO-(N) Glasses, J Mech Behav Biomed Mater 86(2018)284-293 .
It has different properties such as biocompatibility, antimicrobial and anti-fungal properties, injection capability, suitable flooding, convenient clinical application and the formation of dentin bristles.
They require additives to improve the physical and mechanical properties, increase the biocompatibility properties, and induce better bone formation and the formation of a suitable dentin bridge in the direct pulp capping procedure [19].
Considering the above mentioned factors, it seems necessary to conduct further clinical studies to clarify the function of CPC/BG in the oral environment.
Hampshire, Mechanical Properties, Structure, Bioactivity and Cytotoxicity of Bioactive Na-Ca-Si-PO-(N) Glasses, J Mech Behav Biomed Mater 86(2018)284-293 .
Online since: August 2012
Authors: Dong Sheng Qian, Lin Hua, Qi Ma
The uniformity of STD affects the performance such as mechanical property, microstructure of rolled workpiece greatly.
Especially the inhomogeneous STD will cause defects in internal organization which may decrease the mechanical property of rolled workpiece.
The influence factors of mechanical parameters The decrease of the drive roll’s rotational velocity and the increase of the feed speed will increase the rolling force and force moment of the main roll.
In other words, any factors which make the rolling process of the model stable will ameliorate the uniformity of SD.
In the eyes of mechanical properties of the rolled workpiece, good strain uniformity is beneficial and necessary.
Especially the inhomogeneous STD will cause defects in internal organization which may decrease the mechanical property of rolled workpiece.
The influence factors of mechanical parameters The decrease of the drive roll’s rotational velocity and the increase of the feed speed will increase the rolling force and force moment of the main roll.
In other words, any factors which make the rolling process of the model stable will ameliorate the uniformity of SD.
In the eyes of mechanical properties of the rolled workpiece, good strain uniformity is beneficial and necessary.
Online since: September 2015
Authors: Cho Pei Jiang, Zong Han Huang
Advantages of the ECAP are to generate uniform microstructures and improvement of mechanical properties.
Affect factor is the angle of outer corners in plastic zone control.
Mechanical Properties.
The obtained mechanical properties of each case as list in Table 1 are used as material library.
STRUCTURE AND MECHANICAL PROPERTIES ULTRA-FINE GRAINED TITANIUM. in 13th International Research Conference TMT. 2009
Affect factor is the angle of outer corners in plastic zone control.
Mechanical Properties.
The obtained mechanical properties of each case as list in Table 1 are used as material library.
STRUCTURE AND MECHANICAL PROPERTIES ULTRA-FINE GRAINED TITANIUM. in 13th International Research Conference TMT. 2009
Online since: December 2007
Authors: Steven Y. Liang, Binti M. Abraham
In this study, cutting
stresses, residual stress and tool life are explicitly described as functions of tool geometries, cutting
speed, chip load, cutting fluid properties, interface tribological conditions, and the cutter/workpiece
material constants.
Therefore, the individual factors as well as the interrelated connections between these factors are deemed important.
The tool flank wear rate is estimated by considering the thermo mechanical responses of abrasion, adhesion, and diffusion wear mechanisms as functions of material properties, tool geometry, and cutting conditions.
For tool wear modelling, cutting velocity was seen to be the dominant factor for tool wear progression.
A slight change in one parameter will affect the other physical attributes of the machining process.
Therefore, the individual factors as well as the interrelated connections between these factors are deemed important.
The tool flank wear rate is estimated by considering the thermo mechanical responses of abrasion, adhesion, and diffusion wear mechanisms as functions of material properties, tool geometry, and cutting conditions.
For tool wear modelling, cutting velocity was seen to be the dominant factor for tool wear progression.
A slight change in one parameter will affect the other physical attributes of the machining process.
Online since: December 2012
Authors: Jian Xing Ren, Rui Zhu
And boiler superheater tube is one of the important reasons for boiler failure, which affects the safe and stable operation of power generation equipment.
And thermal physics and mechanical properties of the boiler superheater tube were taken full consideration.
In these topics, the research of reliability and security in boiler operation is more important issue, which affects directly the development of coal-fired power generation technology and its application in business as a mature technology .
As the power industry in china is growing into large power plants and large power grids stage, the over-temperature burst and leakage in upper furnace superheater is a growing problem with the increasing boiler capacity, which caused unplanned outages of about 20% of the total running time and is an important factor of affecting the power plant safety.
The attribute of material in this paper is chosen, which is listed in Table 4, and the superheater analysis model and its meshing chart are individually shown in Fig.3 and Fig.4 Table3 Parameters of data analysis used Rear superheater tube outer diameter (mm) 54 Rear superheater tube inner diameter (mm) 47.6 Rear superheater tube wall thickness (mm) 6.4 Analysis and selection of material height (mm) 100 Table 4 Material Properties of 12Cr1MoV Temperature[°C] 100 300 580 Elastic modulus [Mpa] 2.11e5 1.95e5 1.56e5 Poisson's ratio 0.3 0.3 0.3 Thermal expansion coefficient 1.303e-5 1.355e-5 1.43e-5 Figure. 2 Analysis model Figure. 3 Meshing chart 4 Conclusions Superheater is an important part of steam boiler.
And thermal physics and mechanical properties of the boiler superheater tube were taken full consideration.
In these topics, the research of reliability and security in boiler operation is more important issue, which affects directly the development of coal-fired power generation technology and its application in business as a mature technology .
As the power industry in china is growing into large power plants and large power grids stage, the over-temperature burst and leakage in upper furnace superheater is a growing problem with the increasing boiler capacity, which caused unplanned outages of about 20% of the total running time and is an important factor of affecting the power plant safety.
The attribute of material in this paper is chosen, which is listed in Table 4, and the superheater analysis model and its meshing chart are individually shown in Fig.3 and Fig.4 Table3 Parameters of data analysis used Rear superheater tube outer diameter (mm) 54 Rear superheater tube inner diameter (mm) 47.6 Rear superheater tube wall thickness (mm) 6.4 Analysis and selection of material height (mm) 100 Table 4 Material Properties of 12Cr1MoV Temperature[°C] 100 300 580 Elastic modulus [Mpa] 2.11e5 1.95e5 1.56e5 Poisson's ratio 0.3 0.3 0.3 Thermal expansion coefficient 1.303e-5 1.355e-5 1.43e-5 Figure. 2 Analysis model Figure. 3 Meshing chart 4 Conclusions Superheater is an important part of steam boiler.
Online since: August 2023
Authors: Volodymyr Balanyuk, Volodymyr Myroshkin, Oleksandr Harasimiuk, Yuriu Kopystinsky
This parameter is necessary for understanding the dependence of the screening properties of aerosol on the distance between the radiation source and the heated surface and is indicated in the graph (Figure 2).
This phenomenon can occur due to many factors and requires further study and experimental research.
Thus, it should be noted that the screening effect of aerosols is due to the synergistic action of several factors (Fig. 3).
Factors affecting the aerosol screening effect.
Accordingly, the screening effect will be created as a result of the synergistic sequential action of the above-mentioned factors.
This phenomenon can occur due to many factors and requires further study and experimental research.
Thus, it should be noted that the screening effect of aerosols is due to the synergistic action of several factors (Fig. 3).
Factors affecting the aerosol screening effect.
Accordingly, the screening effect will be created as a result of the synergistic sequential action of the above-mentioned factors.
Online since: August 2022
Authors: M.Yaakob Yuhazri, Teng Teng Tan Jennise, Amir Mohamed Kamarul, Mohd Zainudin Azreen
There are various parametric studies carried out to show the changes in the design parameters will affect the mechanical properties of the honeycomb sandwich composites.
There is lack of information regarding the rubber wood honeycomb core in terms of the mechanical properties.
Besides having adhesive to form the fillet, the quality of the fillet was also part of the factors that affect the mechanical properties in the sandwich composites.
Sharina, Effects of core grain orientation on the mechanical properties of wood sandwich composite, J.
Xu, Investigation on mechanical properties and equivalent model of aluminum honeycomb sandwich panels, J.
There is lack of information regarding the rubber wood honeycomb core in terms of the mechanical properties.
Besides having adhesive to form the fillet, the quality of the fillet was also part of the factors that affect the mechanical properties in the sandwich composites.
Sharina, Effects of core grain orientation on the mechanical properties of wood sandwich composite, J.
Xu, Investigation on mechanical properties and equivalent model of aluminum honeycomb sandwich panels, J.
Online since: November 2012
Authors: Xiao Ping Song, Hong Zhao, Yan Song Zhang, Suo Kui Tan, Song Ji, Yu Dong Zhao
There are many factors to affect the ER damper properties, such as construction parameter, inspire parameter and ER properties [8-9].
This paper focuses on the researching of relationship among shear stress and frequency, velocity, displacement and ER properties through simulation.
We can see from the formula that damper strength is close relationship with construction factors(d, L, D, h),surroundings factors(V, f, v),and ER parameter(α, β, η0).
Third, surroundings factors (V, f, v) decide damper strength of damping device when front parameter were defined.
This paper focuses on the research of damper strength -- velocity, damper strength – drift properties of shear ER fluid damper.
This paper focuses on the researching of relationship among shear stress and frequency, velocity, displacement and ER properties through simulation.
We can see from the formula that damper strength is close relationship with construction factors(d, L, D, h),surroundings factors(V, f, v),and ER parameter(α, β, η0).
Third, surroundings factors (V, f, v) decide damper strength of damping device when front parameter were defined.
This paper focuses on the research of damper strength -- velocity, damper strength – drift properties of shear ER fluid damper.
Online since: July 2013
Authors: Qing Dun Zeng, Jing Ren Deng
Optimization Design of Transmission Gears Considering the Noise Factors on the Basis of Weighting Method
Qing Dun Zeng1,a and Jing Ren Deng1,b
1School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, China
aemqdzeng@scut.edu.cn, bduenfei@live.cn
Keywords: Gear, Weighting method, Noise, Optimization design.
Most important of all, good mechanical property of gears is a fundamental guarantee to the safe operation of machines.
If the noise of machine is loud, this means that the mechanical design is not good enough.
Although the stress in tooth roots after optimization has increased a little, it doesn’t affect the total safety.
The results show that spiral bevel gears of smaller volume, higher property and lower nose can be designed by using the present optimization method.
Most important of all, good mechanical property of gears is a fundamental guarantee to the safe operation of machines.
If the noise of machine is loud, this means that the mechanical design is not good enough.
Although the stress in tooth roots after optimization has increased a little, it doesn’t affect the total safety.
The results show that spiral bevel gears of smaller volume, higher property and lower nose can be designed by using the present optimization method.
Online since: March 2015
Authors: Izabela Cristina Stancu, Daniela G. Petre, Horia Emil Cioflan, Andrada Serafim, Adriana Lungu
However, the use of gelatin is often limited by its solubility in aqueous environments, poor mechanical and thermal properties.
(3) Mechanical properties.
Fig. 4: Equilibrium water content for the synthesized hybrid materials Mechanical properties.
The influence of two composition-based factors: (1) T% and (2) GelMA:PVP ratio on the elasticity of the materials was investigated.
They describe an interesting dependency of the mechanical properties with the composition.
(3) Mechanical properties.
Fig. 4: Equilibrium water content for the synthesized hybrid materials Mechanical properties.
The influence of two composition-based factors: (1) T% and (2) GelMA:PVP ratio on the elasticity of the materials was investigated.
They describe an interesting dependency of the mechanical properties with the composition.