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Online since: November 2011
Authors: Min Wang, Jia Chen Kang, Xiao Yan Yuan, Xin Zhang
Incorporating biomolecules such as growth factors in fibers is becoming common for enhancing the biological performance of electrospun scaffolds.
Solvent properties such as conductivity and volatility affected fiber morphology and diameter.
Controlling polymer solution properties and electrospinning parameters, the fiber diameter can be varied from several micrometers to a few hundred nanometers or even smaller [8].
The one-factor-at-a-time (OFAT) method was used for studying the effects of electrospinning parameters on fiber characteristics.
Many factors affected the morphology, diameter and structure of electrospun fibers, including solvent for polymer solution, polymer concentration, amount of the water phase in emulsion, applied voltage, solution feeding rate, etc.
Solvent properties such as conductivity and volatility affected fiber morphology and diameter.
Controlling polymer solution properties and electrospinning parameters, the fiber diameter can be varied from several micrometers to a few hundred nanometers or even smaller [8].
The one-factor-at-a-time (OFAT) method was used for studying the effects of electrospinning parameters on fiber characteristics.
Many factors affected the morphology, diameter and structure of electrospun fibers, including solvent for polymer solution, polymer concentration, amount of the water phase in emulsion, applied voltage, solution feeding rate, etc.
Online since: September 2007
Authors: Alessandro Pirondi, Luca Collini, D. Fersini
FCG properties have been
evaluated at the centre and at the side of the weld, respectively.
The results are compared with FCG properties of base materials.
The results are compared with FCG properties of base materials.
Table 1 summarizes basic mechanical properties.
Table 1: mechanical properties of the two materials tested.
The results are compared with FCG properties of base materials.
The results are compared with FCG properties of base materials.
Table 1 summarizes basic mechanical properties.
Table 1: mechanical properties of the two materials tested.
Optimising the HVOF Deposition Technology of Al2O3-40%TiO2 Coatings for Energy Industry Applications
Online since: November 2025
Authors: Ion Aurel Perianu, Alin Constantin Murariu, Marius Cocard, Eneia Frici
These coatings aim to enhance the properties of traditional metallic materials.
Key factors include gases flow rates and the fueltooxygen ratio (F/O).
Considering that spray parameters influence the thermal transfer and impulse of sprayed particles, affecting coating properties, process parameters must be optimized for each powder type and specific application.
The mechanical properties of 10CrMo9.10 steel vary depending on the thickness of the material, but in general, the tensile strength (Rm) is between 480 to 630 MPa and the minimum yield strength (ReH) is between 250 to 310 MPa.
Spray parameters influence the thermal transfer and impulse of sprayed particles, affecting coating properties, process parameters must be optimized for each powder type and specific application.
Key factors include gases flow rates and the fueltooxygen ratio (F/O).
Considering that spray parameters influence the thermal transfer and impulse of sprayed particles, affecting coating properties, process parameters must be optimized for each powder type and specific application.
The mechanical properties of 10CrMo9.10 steel vary depending on the thickness of the material, but in general, the tensile strength (Rm) is between 480 to 630 MPa and the minimum yield strength (ReH) is between 250 to 310 MPa.
Spray parameters influence the thermal transfer and impulse of sprayed particles, affecting coating properties, process parameters must be optimized for each powder type and specific application.
Online since: April 2009
Authors: F.J. Pérez, M.P. Hierro, F.J. Bolívar, L. Sánchez
The major factors affecting the
efficiency of the conventional steam power plants are the temperature and, to a lesser extent, the
pressure of the steam entering the turbine.
The major factors affecting the efficiency of power plants is the temperature and, to lesser extent, pressure of the steam entering the turbine.
The Si is well known for its beneficial effect on the oxidation resistance of Fe-Cr system [1820] but when the Si is addition as element of alloy can affect the mechanical properties.
This fact reduces significantly the kinetic of growth the oxide scale in these steles in steam conditions at a temperature of 650 0C. 3) The main advantages of the deposition of Si coatings are that it can be realized at temperatures below 600 0C, in short times, at a low cost without affecting the microstructure of the materials and mechanical properties.
Hoyer, W, Structural properties of liquid Fe-Si alloys.
The major factors affecting the efficiency of power plants is the temperature and, to lesser extent, pressure of the steam entering the turbine.
The Si is well known for its beneficial effect on the oxidation resistance of Fe-Cr system [1820] but when the Si is addition as element of alloy can affect the mechanical properties.
This fact reduces significantly the kinetic of growth the oxide scale in these steles in steam conditions at a temperature of 650 0C. 3) The main advantages of the deposition of Si coatings are that it can be realized at temperatures below 600 0C, in short times, at a low cost without affecting the microstructure of the materials and mechanical properties.
Hoyer, W, Structural properties of liquid Fe-Si alloys.
Online since: July 2019
Authors: Ill Soo Kim, Zong Liang Liang, Tae Jong Yun, Won Bin Oh, Bo Ram Lee
DOE is widely used to predict the bead geometry and mechanical properties in many welding process [4].
This procedure creates designs with desirable statistical properties, but most importantly with only a fraction of the experiments required for three-level factorials.
For this study, since a three-level factor requires all possible pairs of 22 designs, three-level factors will be required total possible pairs of 3(22) plus three replicates at the center making a total of 15 experimental trials.
The S/N ratio is a measure of performance to develop products and processes insensitive to noise factors.
The S/N ratio is the main experimental robustness evaluation index, to ensuring that all experimental factor information and test factors affecting the experimental objectives are determined on the impact on the experimental objectives by a small number of experiments.
This procedure creates designs with desirable statistical properties, but most importantly with only a fraction of the experiments required for three-level factorials.
For this study, since a three-level factor requires all possible pairs of 22 designs, three-level factors will be required total possible pairs of 3(22) plus three replicates at the center making a total of 15 experimental trials.
The S/N ratio is a measure of performance to develop products and processes insensitive to noise factors.
The S/N ratio is the main experimental robustness evaluation index, to ensuring that all experimental factor information and test factors affecting the experimental objectives are determined on the impact on the experimental objectives by a small number of experiments.
Online since: December 2013
Authors: Guo Wei Zhao, Yong Chen, De Yong Li, Bin Tang
Then, the damage intensity of mechanical impact on magnetic circuit was decided.
Lots of literature focus on the failure mode and the factors affect performance parameters of electromagnetic relay.
Zhai Guofu [3] taken the contact spring system of electromagnetic relay as a rigid body, analyzed the dynamic procession of mechanical properties by solving the kinetic equations.
So that strong impact is the key factor of uncontrollable and false triggering of electromagnetic relay in engineering applications.
That’s the fundamental factor of the electromagnetic relay failure during the experiment. 4.2 Improved design of Structure and simulation of mechanical impact The three-dimensional structure modeling of SRA-05VDC-CL-type electromagnetic relay is established by SolidWorks software, and then the finite element model is established by ANSYS Workbench.
Lots of literature focus on the failure mode and the factors affect performance parameters of electromagnetic relay.
Zhai Guofu [3] taken the contact spring system of electromagnetic relay as a rigid body, analyzed the dynamic procession of mechanical properties by solving the kinetic equations.
So that strong impact is the key factor of uncontrollable and false triggering of electromagnetic relay in engineering applications.
That’s the fundamental factor of the electromagnetic relay failure during the experiment. 4.2 Improved design of Structure and simulation of mechanical impact The three-dimensional structure modeling of SRA-05VDC-CL-type electromagnetic relay is established by SolidWorks software, and then the finite element model is established by ANSYS Workbench.
Online since: October 2025
Authors: Chinwuba Arum, Stephen Alabi, Oluwafemi Omotayo, Moses Adetutu
Thus, twenty different SCC mixes were designed with varying input factor combinations (FA: 0–40%, LA: 0-50%, and PET fibre: 0–2%) and tested for six responses (rheological properties, namely slump flow, V-funnel time, and L-Box; and mechanical properties, namely compressive, split-tensile, and flexural strengths test).
The materials used as the RSM input factors.
It can also be seen that FA, LA, and PET are the significant variables affecting the slump flow values.
Rao, “Mechanical Properties of Glass Fiber Reinforced Concrete,” 3 (2015)
Shettima, “Mechanical properties of self-compacting high-performance concrete with fly ash and silica fume,” SN Appl Sci, 2 (2020) 1-11
The materials used as the RSM input factors.
It can also be seen that FA, LA, and PET are the significant variables affecting the slump flow values.
Rao, “Mechanical Properties of Glass Fiber Reinforced Concrete,” 3 (2015)
Shettima, “Mechanical properties of self-compacting high-performance concrete with fly ash and silica fume,” SN Appl Sci, 2 (2020) 1-11
Online since: September 2012
Authors: Vasileios Koutsos, Zhong Xiao Song, Wen Ding, Jin Hai Si
Active layer’s morphologies properties are important for the optoelectronic devices.
In this paper, the morphologies properties of the carbon nanotube/polyaniline composites thin film formed by spin coating were studied by the atomic force microscopy (AFM).
But their potential application always limited by the morphology and interface properties when they used as an active layer in the device. [4].
But there are lots of factors can affact the microstructure of the film, which make the contoling of microstructure quiet difficulty, such as, the inherent Vander Waals force of the CNTs, polymer/carbon nanotubes composite’s fabrication methods, spin coating ways, solvents types, analysis method.All the factors above make the controlling over the interface and morphology of carbon nanotube/polymer composites’ thin film become complicated and difficulty[7,8].
Fig.3-1 (a) displayed island like phase separations, Fig.3-1(b) showed unconnected sharp edges phase separations formed, phase separations in Fig.3-1(c) are continuous and interconnected network. there are many factors can effect the interface and morphology of the active layer of the device, as we discussed above, but in the experiment, the solvent type, carbon nanotube physical property, the composites preparation method, and microstructure analysis method are the same, so there are only two factors, concentration of SWNTs in blended solution and spin-coating way, can change the films’ microstructure.
In this paper, the morphologies properties of the carbon nanotube/polyaniline composites thin film formed by spin coating were studied by the atomic force microscopy (AFM).
But their potential application always limited by the morphology and interface properties when they used as an active layer in the device. [4].
But there are lots of factors can affact the microstructure of the film, which make the contoling of microstructure quiet difficulty, such as, the inherent Vander Waals force of the CNTs, polymer/carbon nanotubes composite’s fabrication methods, spin coating ways, solvents types, analysis method.All the factors above make the controlling over the interface and morphology of carbon nanotube/polymer composites’ thin film become complicated and difficulty[7,8].
Fig.3-1 (a) displayed island like phase separations, Fig.3-1(b) showed unconnected sharp edges phase separations formed, phase separations in Fig.3-1(c) are continuous and interconnected network. there are many factors can effect the interface and morphology of the active layer of the device, as we discussed above, but in the experiment, the solvent type, carbon nanotube physical property, the composites preparation method, and microstructure analysis method are the same, so there are only two factors, concentration of SWNTs in blended solution and spin-coating way, can change the films’ microstructure.
Online since: July 2014
Authors: Yang Qiao, Qiu Yue Cui, Tong Hui Liu, Pei Quan Guo
Compared to the previous two generations of powder metallurgy superalloy, FGH97 has a higher creep rupture strength, creep resistance, low crack growth rate and other advantages, it also has excellent mechanical properties in temperature of 650℃~750℃.
In spite of working in complex stress environment and high temperature, FGH97 can maintain excellent low cycle fatigue properties and thermal fatigue properties.
The quality of powder directly affects the properties of the alloy.
The factors of influencing cutting performance is not only tool material but tool geometry parameters, they are directly related to the cutting force, cutting temperature, the quality of the machined surfaced and chip morphology.
The main deflection angle will affect the cutting force, tool wear, chip thickness and so on, they are the main factors to influence the machining precision and surface shape.
In spite of working in complex stress environment and high temperature, FGH97 can maintain excellent low cycle fatigue properties and thermal fatigue properties.
The quality of powder directly affects the properties of the alloy.
The factors of influencing cutting performance is not only tool material but tool geometry parameters, they are directly related to the cutting force, cutting temperature, the quality of the machined surfaced and chip morphology.
The main deflection angle will affect the cutting force, tool wear, chip thickness and so on, they are the main factors to influence the machining precision and surface shape.
Online since: May 2012
Authors: Bao Tian Wang, Yun Dong
a hadyun@163.com, bbtwang@hhu.edu.cn
Keywords: lime stabilized expansive soil, wet and dry cycle, direct shear test, consolidation test
ABSTRACT: Lime Stabilized expansive soil is often used as filler in road subgrade, although many scholars have done a lot of research, the mechanical properties under wet and dry cycle role remains unclear.
Wetting and drying cycle caused by the variability of environmental conditions is the main factor lead to degradation of mechanical properties of embankment filler, the embankment filler loss water and shrink in the dry season, and bibulous saturated and inflation in the rainy season, so the role of the reciprocating will lead to the change of the structure of the soil, soil strength gradually reduced, which finally causes the destruction of roadbed.
Based on the above background, the article carry out test study on mechanical properties of the lime stabilized expansive soil under wet and dry cycle, to explore the strength variation and stability strength of lime stabilized expansive soil under wet and dry cycle.
CONCLUSIONS With all the above results, the mechanical properties of lime stabilized expansive soil under wet and dry cycle have such characteristics as follows: The strength of soil will decrease especially in previous cycle, and the trends can be expressed with logarithmic model
Research on mechanical properties of expansive soil under wetting-drying cycle, Rock and Soil Mechanics, Vol.28 Supp.
Wetting and drying cycle caused by the variability of environmental conditions is the main factor lead to degradation of mechanical properties of embankment filler, the embankment filler loss water and shrink in the dry season, and bibulous saturated and inflation in the rainy season, so the role of the reciprocating will lead to the change of the structure of the soil, soil strength gradually reduced, which finally causes the destruction of roadbed.
Based on the above background, the article carry out test study on mechanical properties of the lime stabilized expansive soil under wet and dry cycle, to explore the strength variation and stability strength of lime stabilized expansive soil under wet and dry cycle.
CONCLUSIONS With all the above results, the mechanical properties of lime stabilized expansive soil under wet and dry cycle have such characteristics as follows: The strength of soil will decrease especially in previous cycle, and the trends can be expressed with logarithmic model
Research on mechanical properties of expansive soil under wetting-drying cycle, Rock and Soil Mechanics, Vol.28 Supp.