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Online since: January 2006
Authors: Cheng Chan Lo, Min Jou
One of the
key factors which will alter the capacitance is the surface roughness of the plate.
It characterizes the short-range properties of the surface.
Pressure will not affect the stability of the waves, but it does affect the amplification factor iβ by means of changing σ
When 1affect the amplification
factor iβ .
Conf. on Properties and Applications of Dielectric Materials, Vol. 2 (1997), p. 697-700
It characterizes the short-range properties of the surface.
Pressure will not affect the stability of the waves, but it does affect the amplification factor iβ by means of changing σ
When 1
Conf. on Properties and Applications of Dielectric Materials, Vol. 2 (1997), p. 697-700
Online since: November 2025
Authors: Sergiy Kulman, Oleksandra Horbachova, Serhii Mazurchuk, Anatolii Vyshnevskyi
For example, water affects the structural use of wood by changing the mechanical properties (stiffness, strength, creep) and dimensions of the material [3, 4, 5].
The intensity of wood impregnation is influenced by several factors related to the capillary structure of the material.
When interacting, the properties of both components change.
Niemz, Mechanical properties of wood: a review, Forests. 14(6) (2023) 1202
Wu, Effects of different accelerated aging modes on the mechanical properties, color and microstructure of wood, Journal of Building Engineering. 981 (2024) 111026
The intensity of wood impregnation is influenced by several factors related to the capillary structure of the material.
When interacting, the properties of both components change.
Niemz, Mechanical properties of wood: a review, Forests. 14(6) (2023) 1202
Wu, Effects of different accelerated aging modes on the mechanical properties, color and microstructure of wood, Journal of Building Engineering. 981 (2024) 111026
Online since: July 2014
Authors: Murahari Kolli, Adepu Kumar
Analysis of variance (ANOVA) revealed that discharge current, pulse on time and B4C powder concentration in dielectric are most important parameters affecting both the performance parameters.
The standard EDM working conditions, Titanium alloy chemical composition and properties mentioned in the Table 1.
The degree of freedom of all the four factors is 8.
Also, it was found that the optimal levels of the performance factors for MRR are A3B3C3D3 and for SR are A1B1C1D1.
From ANOVA, discharge current and pulse on time are more important factors for MRR, whereas pulse on time, pulse on and concentration are more significant factors for SR.
The standard EDM working conditions, Titanium alloy chemical composition and properties mentioned in the Table 1.
The degree of freedom of all the four factors is 8.
Also, it was found that the optimal levels of the performance factors for MRR are A3B3C3D3 and for SR are A1B1C1D1.
From ANOVA, discharge current and pulse on time are more important factors for MRR, whereas pulse on time, pulse on and concentration are more significant factors for SR.
Online since: June 2011
Authors: Jian Lin Luo, Tie Jun Zhao, Qiu Yi Li, Sheng Wei Sun
The fatigue life and degradation of their mechanical properties in service are needed to be essentially considered, it’s urgent to develop practical and effective sensors application in in-situ monitoring their stresses and/or strains.
Its exceptional properties make it potential candidate for lots of applications.
It is well-known that the main factors affecting the conductivity of a composite are the contact resistance and the number of conductive netlike pathways.
When Mmf stays between 2.0-3.0%, the counterpoise of two above factors contributes to the necessary numbers of conductive pathways and formation of tunneling-through meshwork of close but isolated MWNT fibers, the “sea island” chains of MWNT fibers isolated by cured epoxy film can trigger some fiber conductive pathways formation.
The strain-sensitive property of the MNTREP coating implies that in addition to reinforcing mechanical properties, this type of functional material presents the potential to provide real-time health monitoring and self-diagnostic functionalities to FRP structures.
Its exceptional properties make it potential candidate for lots of applications.
It is well-known that the main factors affecting the conductivity of a composite are the contact resistance and the number of conductive netlike pathways.
When Mmf stays between 2.0-3.0%, the counterpoise of two above factors contributes to the necessary numbers of conductive pathways and formation of tunneling-through meshwork of close but isolated MWNT fibers, the “sea island” chains of MWNT fibers isolated by cured epoxy film can trigger some fiber conductive pathways formation.
The strain-sensitive property of the MNTREP coating implies that in addition to reinforcing mechanical properties, this type of functional material presents the potential to provide real-time health monitoring and self-diagnostic functionalities to FRP structures.
Online since: May 2021
Authors: Eduard Pogorel’tsev, Valeriy Senichev, Aleksey Slobodinyuk, Dmitriy Kiselkov, Marina Makarova
In addition, if the value of strength and the friction coefficient are factors that proportionally affect the wear degree, then the value of the modulus of the polymer material plays the role of a trigger, which, when this value decreases, turns on more destructive mechanisms of wear [8-9].
Depending on the particle size (or their surface area), the magnitude of the filling effect on the functional properties of polymers varies.
These fillers act on the factors that directly affect the abrasive wear degree in different directions: the decrease in the coefficient of friction between the polymer material and the abrasive surface leads to the decrease in the wear degree, but decrease in the strength of the material leads to the increase in the mentioned degree).
Volkova, Influence of nature and concentration of filler on properties of polyurethane composites, used in water environment, Persp.
Sheng-Kang, Hydrogen-bonding properties of segmented polyether poly (urethane urea) copolymer, Macromolecules 30 (1997) 4405-4409
Depending on the particle size (or their surface area), the magnitude of the filling effect on the functional properties of polymers varies.
These fillers act on the factors that directly affect the abrasive wear degree in different directions: the decrease in the coefficient of friction between the polymer material and the abrasive surface leads to the decrease in the wear degree, but decrease in the strength of the material leads to the increase in the mentioned degree).
Volkova, Influence of nature and concentration of filler on properties of polyurethane composites, used in water environment, Persp.
Sheng-Kang, Hydrogen-bonding properties of segmented polyether poly (urethane urea) copolymer, Macromolecules 30 (1997) 4405-4409
Online since: June 2012
Authors: Hai Qing Ren, Wan Li Lou, Xia Zhen Li, Yong Zhong
Therefore, the effects of defects such as knots on the mechanical properties of dimension lumber need further research.
While, the full scale test is at the initial stage in china and the effect of knots on the mechanical properties of full scale specimens is still in blank.
Results and Discussions Effect factors of the MOE for clear wood specimens.
There were close relationships between density and mechanical properties of wood specimens [9, 10].
Meanwhile, as to the dimension lumber whose bending strength was affected by the defects of knots, the predictive bending strength was more consistent with the measured values when density and knots as the main effect factors [13, 14]. 26 full scale specimens were initiated in the weakest location of the knot.
While, the full scale test is at the initial stage in china and the effect of knots on the mechanical properties of full scale specimens is still in blank.
Results and Discussions Effect factors of the MOE for clear wood specimens.
There were close relationships between density and mechanical properties of wood specimens [9, 10].
Meanwhile, as to the dimension lumber whose bending strength was affected by the defects of knots, the predictive bending strength was more consistent with the measured values when density and knots as the main effect factors [13, 14]. 26 full scale specimens were initiated in the weakest location of the knot.
Online since: October 2023
Authors: Arjulizan Rusli, Azlan Ariffin, Mohamad Danial Shafiq, Muhammad Naziff Ahamad Said, Nurul Anis Hasbullah, Muhammad Ridhwan Hafiz Rosdi
However, WCO flowability can be improved in many ways, such as electrical, thermal, mechanical, and chemical treatment [3,6].
Vuthaluru, Synthesis of PMMA/modified graphene oxide nanocomposite pour point depressant and its effect on the flow properties of Indian waxy crude oil, Fuel. 235 (2019) 1245–1259
Theyab, Wax deposition process: mechanisms, affecting factors and mitigation methods, Open Access J.
Shafian, A methodology to investigate factors governing the restart pressure of a Malaysian waxy crude oil pipeline, J.
Nik Malek, One pot synthesis of PMMA/silver nanoparticles and its antibacterial properties, Malaysian J.
Vuthaluru, Synthesis of PMMA/modified graphene oxide nanocomposite pour point depressant and its effect on the flow properties of Indian waxy crude oil, Fuel. 235 (2019) 1245–1259
Theyab, Wax deposition process: mechanisms, affecting factors and mitigation methods, Open Access J.
Shafian, A methodology to investigate factors governing the restart pressure of a Malaysian waxy crude oil pipeline, J.
Nik Malek, One pot synthesis of PMMA/silver nanoparticles and its antibacterial properties, Malaysian J.
Online since: September 2013
Authors: Yun Feng Liu, Shuang Zhou, Xiao Yong An
Research on the Fatigue Life of Universal Mill Horizontal Roller Ring applying Fe-safe
Yun-Feng Liu1,a,Xiao-Yong An1,b ,Shuang Zhou 2,c
1Inner Mongolia University of Science and Technology, Institute of Mechanical Engineering, Baotou, Inner Mongolia, China 014010
2 Rail and Beam Plant of Baotou Iron and Steel Group Co., Ltd.
A large number of production practice has proved that the main cause of the roller ring failure and affecting their life are cracks, fatigue damage and the peeling of the surface of the roller ring and these are closely related to the force status of the roller ring.Therefore,taking the combination factors such as temperature and load into account and establishing a mechanical model in line with the actual conditions to predict the fatigue life of the roll ring is of great significance to ensure smooth production and improve product quality.
Finite element analysis results,material fatigue properties and fatigue load spectrum are three preconditions to calculate the fatigue life using fe-safe.
The resulting material fatigue failure load cycles and material safety factor are solved in Fe-safe,which can be visually observed from the graphical analysis of the fatigue life by importing the calculation results into ansys post-processor.
Fig. 5 The fatigue life images of horizontal roller ring Summary The main factors of affecting the fatigue life of horizontal roller ring is thermal stress coming from temperature and contact stress coming from the rolling force by analyzing the failure modes and failure causes of roll ring.The paper estimate the fatigue life of roller ring under simulated conditions and the conclusion get is that rolling ring should stop working and grind the cracks on the surface when running 234 hours.This paper has a certain reference value to the time selection to change or grind the roller rings in actual production.
A large number of production practice has proved that the main cause of the roller ring failure and affecting their life are cracks, fatigue damage and the peeling of the surface of the roller ring and these are closely related to the force status of the roller ring.Therefore,taking the combination factors such as temperature and load into account and establishing a mechanical model in line with the actual conditions to predict the fatigue life of the roll ring is of great significance to ensure smooth production and improve product quality.
Finite element analysis results,material fatigue properties and fatigue load spectrum are three preconditions to calculate the fatigue life using fe-safe.
The resulting material fatigue failure load cycles and material safety factor are solved in Fe-safe,which can be visually observed from the graphical analysis of the fatigue life by importing the calculation results into ansys post-processor.
Fig. 5 The fatigue life images of horizontal roller ring Summary The main factors of affecting the fatigue life of horizontal roller ring is thermal stress coming from temperature and contact stress coming from the rolling force by analyzing the failure modes and failure causes of roll ring.The paper estimate the fatigue life of roller ring under simulated conditions and the conclusion get is that rolling ring should stop working and grind the cracks on the surface when running 234 hours.This paper has a certain reference value to the time selection to change or grind the roller rings in actual production.
Online since: March 2024
Authors: Stephen O. Ekolu, Abdolhossein Naghizadeh, Kwandiwe Magugu, Harry Quainoo
Several studies [11, 12, 13, 14, 15, 16] have reported the influence of curing temperature on mechanical properties of geopolymer binders.
However, incorporation of proportions beyond 30% FCS aggregate, resulted in leaching of chromium and subsequent formation of hydrotalcite, thereby adversely affecting strength. 1.2 Study objectives Relatively few researches [1, 24, 25] presently exist on FCS geopolymer binder and its properties.
Mechanical properties and setting time of ferrochrome slag based geopolymer paste and mortar.
Reaction mechanism and mechanical properties of geopolymer based on kaolinitic coal tailings, Applied Clay Science, 106826
Influence of ferrochrome ash on mechanical and microstructure properties of ambient cured fly ash-based geopolymer concrete.
However, incorporation of proportions beyond 30% FCS aggregate, resulted in leaching of chromium and subsequent formation of hydrotalcite, thereby adversely affecting strength. 1.2 Study objectives Relatively few researches [1, 24, 25] presently exist on FCS geopolymer binder and its properties.
Mechanical properties and setting time of ferrochrome slag based geopolymer paste and mortar.
Reaction mechanism and mechanical properties of geopolymer based on kaolinitic coal tailings, Applied Clay Science, 106826
Influence of ferrochrome ash on mechanical and microstructure properties of ambient cured fly ash-based geopolymer concrete.
Online since: November 2013
Authors: Wan Xia Tang, Ji Kang Yan, Zhe Shi, Jing Hong Du, Jia Min Zhang, Yi Chun Liu, Jia Hong Yi, Guo You Gan, Gang Yang, Er Xin Ni
The results show that the biggest factor that affects the powder synthesis rate is the pH at the titration end-point.
The main quality factors which affect ITO synthesis rate are discussed.
This study does not consider process parameters optimization, so we do not test the best suitable operating conditions for indexing (appropriate factors level).
[2] Nam J G, Choi H, Kim S H et al, Synthesis and sintering properties of nanosized In2O3-10wt%SnO2 powders, J.
Xiang, The effects of SiO2 buffer layer to flexible ITO thin film properties, J.
The main quality factors which affect ITO synthesis rate are discussed.
This study does not consider process parameters optimization, so we do not test the best suitable operating conditions for indexing (appropriate factors level).
[2] Nam J G, Choi H, Kim S H et al, Synthesis and sintering properties of nanosized In2O3-10wt%SnO2 powders, J.
Xiang, The effects of SiO2 buffer layer to flexible ITO thin film properties, J.