Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: July 2017
Authors: Jia Jun Chen, Lan Xiang Shi, Yun Song Liu, Meng Wei
All of these properties make it can catalyze and degrade various organic pollutants and heavy metal [4, 5].
Carrying capacity involves two aspects, one is whether nZVI could disperse in foam stably, and the other is properties of foam would be changed or not.
Carrying capacity of foam on nZVI-M and the influencing factors.
Orthogonal experimental design: According to literatures research and preliminary experiments, the main factors that affect foam carrying capacity are surfactant type (ST), surfactant concentration (SC), initial concentration of nZVI (IC), foam quality (FQ) [14].
Concentrations of nZVI-M in Foam and the Influencing Factors.
Carrying capacity involves two aspects, one is whether nZVI could disperse in foam stably, and the other is properties of foam would be changed or not.
Carrying capacity of foam on nZVI-M and the influencing factors.
Orthogonal experimental design: According to literatures research and preliminary experiments, the main factors that affect foam carrying capacity are surfactant type (ST), surfactant concentration (SC), initial concentration of nZVI (IC), foam quality (FQ) [14].
Concentrations of nZVI-M in Foam and the Influencing Factors.
Online since: May 2010
Authors: Y.H. Lai, J.X. Wang, Y. Zhang, Y. Gao
It was found that the water flow
rate Qw and the height of medium hm are the two most important parameters affecting the
transparent window size At.
A systematic study of the parameters affecting the transparent window size At and the transparent window size stability est will give very useful guidance on design of the practical measurement device.
Input parameters Qw Water flow rate vt Table velocity hm Height of medium φw Water channel diameter cc Coolant concentration Output parameters At Transparent window size est Transparent window stability Inputs Outputs At est Controllable factors Transparent window generation Uncontrollable factors … A (Qw) B (vt) C (hm) D (φw) E (cc) Coolant Workpiece vt Applicator Transparent area Water channel Table 2.
Levels of factors Level A (qw) B (vt) C (φw) D (hm) + 2.0ml/s 60mm/s 2.0mm 0.2mm - 1.0ml/s 150mm/s 1.0mm 0.5mm Table 3.
Conclusions The factorial test results show that the water flow rate Qw and the height of medium hm are two most important parameters affecting the transparent window size At.
A systematic study of the parameters affecting the transparent window size At and the transparent window size stability est will give very useful guidance on design of the practical measurement device.
Input parameters Qw Water flow rate vt Table velocity hm Height of medium φw Water channel diameter cc Coolant concentration Output parameters At Transparent window size est Transparent window stability Inputs Outputs At est Controllable factors Transparent window generation Uncontrollable factors … A (Qw) B (vt) C (hm) D (φw) E (cc) Coolant Workpiece vt Applicator Transparent area Water channel Table 2.
Levels of factors Level A (qw) B (vt) C (φw) D (hm) + 2.0ml/s 60mm/s 2.0mm 0.2mm - 1.0ml/s 150mm/s 1.0mm 0.5mm Table 3.
Conclusions The factorial test results show that the water flow rate Qw and the height of medium hm are two most important parameters affecting the transparent window size At.
Online since: July 2006
Authors: D. Marjanović, N. Ivanović, N. Novaković, I. Radisavljević
Structural, Electronic and Optical Properties of Some Oligo-Phenylenes
I.
Introduction Extensive investigations [1-21] of Poly(p-phenylene) (PPP) and its linear oligomers have related remarkable morphological flexibility of the molecules and of them made materials to their mechanical [1], electronic [5] and optical properties [4,6,21], making them attractive for numerous applications.
The fact that a weak Eg n-dependence is present even at Θ=90 o indicates the influence of electron correlation effects on phenylene-based oligomers properties.
The fact that the slope of the torsional barrier (Fig. 2 (a)) is much steeper in the region Θ=0-30 o , where dipole moment is lower, than in the region Θ=60-90 o , where dipole moment is higher, confirms that the electrostatic interaction is not the main factor, which determines the torsion barrier properties.
All investigated properties are very sensitive to the subtle interplay between conjugation and electrostatic effects and their changes with oligomer length and torsion angle.
Introduction Extensive investigations [1-21] of Poly(p-phenylene) (PPP) and its linear oligomers have related remarkable morphological flexibility of the molecules and of them made materials to their mechanical [1], electronic [5] and optical properties [4,6,21], making them attractive for numerous applications.
The fact that a weak Eg n-dependence is present even at Θ=90 o indicates the influence of electron correlation effects on phenylene-based oligomers properties.
The fact that the slope of the torsional barrier (Fig. 2 (a)) is much steeper in the region Θ=0-30 o , where dipole moment is lower, than in the region Θ=60-90 o , where dipole moment is higher, confirms that the electrostatic interaction is not the main factor, which determines the torsion barrier properties.
All investigated properties are very sensitive to the subtle interplay between conjugation and electrostatic effects and their changes with oligomer length and torsion angle.
Online since: March 2021
Authors: Rasidi Bin Roslan, Mohd Shaiful Sajab, Denesh Mohan, Saiful Bahari Bakarudin, Hatika Kaco
Graphene nanoplatelets (GnP) possess exceptional properties such as high mechanical properties, low weight, high electrical properties, thermally stable and high aspect ratio [7,9].
Incorporation of GnP in fused deposition modeling (FDM) 3D printing filaments have improved mechanical, thermal and electrical properties [12–14].
The transmittance of UV light decreased with increment of GNP as compared to neat PU resin which indirectly affects the curing properties of the resin.
Mikos, Progress in three-dimensional printing with growth factors, J.
Hong, Comparison to mechanical properties of epoxy nanocomposites reinforced by functionalized carbon nanotubes and graphene nanoplatelets, Compos.
Incorporation of GnP in fused deposition modeling (FDM) 3D printing filaments have improved mechanical, thermal and electrical properties [12–14].
The transmittance of UV light decreased with increment of GNP as compared to neat PU resin which indirectly affects the curing properties of the resin.
Mikos, Progress in three-dimensional printing with growth factors, J.
Hong, Comparison to mechanical properties of epoxy nanocomposites reinforced by functionalized carbon nanotubes and graphene nanoplatelets, Compos.
Online since: July 2021
Authors: Viktor Vasilevich Ovchinnikov, A.N. Feofanov, A.M. Gubin
The Structure and Properties of Dispersed Aluminium Composite Compounds Made by Welding Friction with Mixing
A.N.
The same samples were used to determine the properties of seam metal at elevated temperatures.
Mechanical properties of welded compounds of the materials studied, obtained by welding friction with mixing Material Temporary resistance of welded compoundσВ, [MPA] Welding strength factor Temporary resistance of the seam metal σВШ, [MPA] Seam metal strength factor The angle of the bend α, hail.
It can be foreseen that the wear debris would affect the quality of the weld and reduce the properties.
Wang, The effect of interface defect on mechanical properties and its formation mechanism in friction stir lap welded joints of aluminum alloys, Journal of Materials Processing Technology, Vol. 238 (2016) 244–254
The same samples were used to determine the properties of seam metal at elevated temperatures.
Mechanical properties of welded compounds of the materials studied, obtained by welding friction with mixing Material Temporary resistance of welded compoundσВ, [MPA] Welding strength factor Temporary resistance of the seam metal σВШ, [MPA] Seam metal strength factor The angle of the bend α, hail.
It can be foreseen that the wear debris would affect the quality of the weld and reduce the properties.
Wang, The effect of interface defect on mechanical properties and its formation mechanism in friction stir lap welded joints of aluminum alloys, Journal of Materials Processing Technology, Vol. 238 (2016) 244–254
Online since: May 2021
Authors: A.E. Shkuro, A.V. Artyomov, A.V. Savinovskikh
Herewith, in some cases, alternative fillers do not ensure the required physical and mechanical properties of WPC products.
Standard specimens for testing the WPC physical and mechanical properties were prepared by hot pressing.
The input factors of the experiment were the irradiation intensity (Z1, mW/m2) and the duration of exposure to UV irradiation (Z2, hours).
An increase in radiation power at a low duration of exposure to irradiation does not affect greatly the physical and mechanical composite properties.
Krivonogova, Plastics: physical-and-mechanical properties and biodegradable potential, Foods and Raw Materials. 8, 1 (2000) 149-154
Standard specimens for testing the WPC physical and mechanical properties were prepared by hot pressing.
The input factors of the experiment were the irradiation intensity (Z1, mW/m2) and the duration of exposure to UV irradiation (Z2, hours).
An increase in radiation power at a low duration of exposure to irradiation does not affect greatly the physical and mechanical composite properties.
Krivonogova, Plastics: physical-and-mechanical properties and biodegradable potential, Foods and Raw Materials. 8, 1 (2000) 149-154
Online since: January 2012
Authors: Z. Azari, G. Pluvinage, A. Belalia, A. Rahmani, G.B. Lenkey
Mechanical Properties
3.1 Microhardness
Microhardness varies depending on the sampling areas.
Generally, for the base metal, the microhardness does not change whatever the sampling plans (LR) nor (TR), which means that rolling doesn’t affect this material property, Fig. 7.
Fig. 8: Tensile test of APL 5L X52 steel Table 4: Mechanical Properties of API 5L X52 steel.
Actes Congrés “Dynamical Mechanical Properties and Fracture Dynamics Engineerings Material“, Valtice, Tchécoslovaquie, pp 231-239, Juin, (1983)
Actes Congrés “Dynamical Mechanical Properties and Fracture Dynamics Engineerings Material“, Valtice, Tchécoslovaquie, pp 231-239, Juin, (1983)
Generally, for the base metal, the microhardness does not change whatever the sampling plans (LR) nor (TR), which means that rolling doesn’t affect this material property, Fig. 7.
Fig. 8: Tensile test of APL 5L X52 steel Table 4: Mechanical Properties of API 5L X52 steel.
Actes Congrés “Dynamical Mechanical Properties and Fracture Dynamics Engineerings Material“, Valtice, Tchécoslovaquie, pp 231-239, Juin, (1983)
Actes Congrés “Dynamical Mechanical Properties and Fracture Dynamics Engineerings Material“, Valtice, Tchécoslovaquie, pp 231-239, Juin, (1983)
Online since: August 2019
Authors: Peter Fabian, Elena Kantoriková
There is a many factor that affect the bearing life.
In the first group is factors that are directly related to the production of bearings.
The third group of factors that affect bearing life include the bearing itself in operating conditions.
The volume increases, the magnetic properties change, and heat is released.
The mechanical properties of bearings such as hardness, spectrography and metallography were monitored after the measurements.
In the first group is factors that are directly related to the production of bearings.
The third group of factors that affect bearing life include the bearing itself in operating conditions.
The volume increases, the magnetic properties change, and heat is released.
The mechanical properties of bearings such as hardness, spectrography and metallography were monitored after the measurements.
Online since: September 2021
Authors: Hamid Reza Darvishvand, Masood Ebrahimi, Elham Keramati, Seiyed Ali Haj Seiyed Taghia
Al-Oraimi et al [4] surveyed the effect of aggregate source on mechanical properties of concrete.
Fiber length and aggregate size are two important factors to provide a uniform distribution of fiber in concrete mixture.
Steel fibers have high mechanical properties.
In the most cases, the increase of fiber content, improved the mechanical properties of SFRC.
Fahimifar (2019), Mechanical properties of steel and polymer fiber reinforced concrete.
Fiber length and aggregate size are two important factors to provide a uniform distribution of fiber in concrete mixture.
Steel fibers have high mechanical properties.
In the most cases, the increase of fiber content, improved the mechanical properties of SFRC.
Fahimifar (2019), Mechanical properties of steel and polymer fiber reinforced concrete.
Online since: May 2011
Authors: Hong Xiang Zhu, Nan Nan Xia, Shuang Fei Wang, Hui He, Ying Hui Wang
The product of emulsion polymerization with St and BA has a good comprehensive properties and a certain sizing effectiveness.
Due to its presence in the latex, it produces a porous film, which deteriorates the product’s properties in the adhesive force, waterproof, gloss and electric performance.
Reaction time on properties of emulsion From Figure 1 we can see: With the increase of reaction time, the solid content did not change significantly.
For yield, four factors of the R value is no big difference.
The product of emulsion polymerization using St and BA has a good comprehensive properties and a certain sizing effectiveness.
Due to its presence in the latex, it produces a porous film, which deteriorates the product’s properties in the adhesive force, waterproof, gloss and electric performance.
Reaction time on properties of emulsion From Figure 1 we can see: With the increase of reaction time, the solid content did not change significantly.
For yield, four factors of the R value is no big difference.
The product of emulsion polymerization using St and BA has a good comprehensive properties and a certain sizing effectiveness.