Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: September 2016
Authors: M. Nalla Mohamed, J. Sylvya Rebecca
Nalla Mohamed1, a*, J.Sylvya Rebecca2, b
1Associate Professor, Department of Mechanical Engineering, SSN College of Engineering, Chennai-603110, Tamilnadu, India.
2 P.G.StudentResearcher, Department of Mechanical Engineering, SSN College of Engineering, Chennai-603110, Tamilnadu.
This temperaturedepends on many process parameters such as peak current, pulse duration,the properties and composition of the dielectric and the raw materials used, etc.An experimental approachto finding the impact of process parameters on this discharge temperature as well as an emission is uneconomical.
The material properties of the tool and work piece are temperature dependent. 3.
Then the material properties are assigned to the model as given in Table 1.
Discretization of the domain has been done by providing finer mesh on the area which is affected by the heat flux (top left corner) and coarse mesh on the remaining area.
This temperaturedepends on many process parameters such as peak current, pulse duration,the properties and composition of the dielectric and the raw materials used, etc.An experimental approachto finding the impact of process parameters on this discharge temperature as well as an emission is uneconomical.
The material properties of the tool and work piece are temperature dependent. 3.
Then the material properties are assigned to the model as given in Table 1.
Discretization of the domain has been done by providing finer mesh on the area which is affected by the heat flux (top left corner) and coarse mesh on the remaining area.
Online since: July 2019
Authors: Gilda Santos, Ana Barros, Cristina Oliveira, Patrícia Ferreira
However, extreme weather conditions (high temperatures and humidity or intense cold) may place too much stress on the thermoregulation mechanism, also reducing the wearer’s physical performance [8], affecting health and even endangering life through hypothermia and hyperthermia.
These are the main factors affecting thermophysiological comfort, as well as physical and mechanical characteristics (e.g. abrasion resistance and dimensional stability).
Characterization of the selected materials in terms of physical properties and other functionalities The materials selected to integrate the architectures proposed (Architectures 1 and 2) were evaluated in terms of physical properties and other functionalities.
Test methods used to determine materials physical properties and functionalities.
Thermo-physiological properties of the selected textile materials.
These are the main factors affecting thermophysiological comfort, as well as physical and mechanical characteristics (e.g. abrasion resistance and dimensional stability).
Characterization of the selected materials in terms of physical properties and other functionalities The materials selected to integrate the architectures proposed (Architectures 1 and 2) were evaluated in terms of physical properties and other functionalities.
Test methods used to determine materials physical properties and functionalities.
Thermo-physiological properties of the selected textile materials.
Online since: December 2013
Authors: Yin Ying Li
The disadvantage of the SHEV is the lower overall efficiency than the internal combustion engine vehicle in the heat - electricity - mechanical energy conversion process.
A PHEV does not lose energy as a SHEV in the heat - elctricity - mechanical energy conversion process, its dynamic properties are more near the internal combustion engine vehicle.
When the brake pedal signal continues to increase, the original mechanical braking systems have also begun work to meet the safety needs.
It has control torque under zero-speed, so high-speed operation can be done, and power factor of the power net can be improved [6], etc.
Two Factors Affecting Development of Automobile Technology--Environment and Energy [J].
A PHEV does not lose energy as a SHEV in the heat - elctricity - mechanical energy conversion process, its dynamic properties are more near the internal combustion engine vehicle.
When the brake pedal signal continues to increase, the original mechanical braking systems have also begun work to meet the safety needs.
It has control torque under zero-speed, so high-speed operation can be done, and power factor of the power net can be improved [6], etc.
Two Factors Affecting Development of Automobile Technology--Environment and Energy [J].
Online since: July 2006
Authors: Michael A. Gharghouri
The effects of the various
processes on the microstructure, and hence the properties, of alloys must be understood in order to
produce high-quality materials and components efficiently and reliably.
On the other hand, a larger sampling volume provides true bulk averaging of material properties.
Texture analysis The crystallographic texture developed during a given forming process has a strong influence on the final material properties, as well as on the response of the material to further forming and shaping processes.
Process models, which predict the microstructure, texture and properties of aluminum alloys at each stage of the manufacturing process, are currently under development [6-9].
In these early stages individual diffraction peaks can be selected and their expected intensities calculated based on crystal structure factors, through which the volume fractions can be determined.
On the other hand, a larger sampling volume provides true bulk averaging of material properties.
Texture analysis The crystallographic texture developed during a given forming process has a strong influence on the final material properties, as well as on the response of the material to further forming and shaping processes.
Process models, which predict the microstructure, texture and properties of aluminum alloys at each stage of the manufacturing process, are currently under development [6-9].
In these early stages individual diffraction peaks can be selected and their expected intensities calculated based on crystal structure factors, through which the volume fractions can be determined.
Online since: March 2012
Authors: Xu Chao Shi, Xiu Juan Lv, Qi Xia Liu
Due to the influence of many factors for the strength of cement stabilized soil that make the test results apparently complex and no significant relationship exist.
But a large number of training iterations may force a neural network to over train, which may affect the predicting capabilities of the model.
Training sample Because the strength of the cement soil include many influencing factors in the model, In this paper related parameters include mixing ratio, age, water content, porosity, saturation and wave velocity and dry density, The seven parameters are input variables, that is used for modeling the input variables a seven dimensional vector, and output is cement soil strength.
The Prediction of Mechanical Properties of Cement Soil Based on PSO-SVM . 2010 International Conference on CISE. 2010, 10, p1-4 [4] LIU Yongjian.
Application of the principle of artificial neural network in predicting the mechanical properties of cement stabilized soil.
But a large number of training iterations may force a neural network to over train, which may affect the predicting capabilities of the model.
Training sample Because the strength of the cement soil include many influencing factors in the model, In this paper related parameters include mixing ratio, age, water content, porosity, saturation and wave velocity and dry density, The seven parameters are input variables, that is used for modeling the input variables a seven dimensional vector, and output is cement soil strength.
The Prediction of Mechanical Properties of Cement Soil Based on PSO-SVM . 2010 International Conference on CISE. 2010, 10, p1-4 [4] LIU Yongjian.
Application of the principle of artificial neural network in predicting the mechanical properties of cement stabilized soil.
Online since: April 2021
Authors: Tino Hausotte, Matthias Busch
Depending on the process parameters used, geometric properties are formed, which are of interest in assessing the quality of a joining connection.
In the following the concepts of the resolutions with influencing factors are described.
Resolution Concept and Influencing Factors Various quantities influence the resolution of a CT system (Fig. 1).
Moreover, influencing factors caused by the measurement task are the measuring object with its material and geometric dimensions, the resulting absorption properties of the X-rays and the mounting strategy [4].
That is just one of several influencing and resolution-limiting factors that affect the capture of geometric features.
In the following the concepts of the resolutions with influencing factors are described.
Resolution Concept and Influencing Factors Various quantities influence the resolution of a CT system (Fig. 1).
Moreover, influencing factors caused by the measurement task are the measuring object with its material and geometric dimensions, the resulting absorption properties of the X-rays and the mounting strategy [4].
That is just one of several influencing and resolution-limiting factors that affect the capture of geometric features.
Online since: September 2016
Authors: Tereza Komárková
In order to improve its physical and mechanical properties, the additives and admixtures are added into the fresh concrete [1].
These improvements in physical and mechanical properties are (very) vastly desirable especially because concrete is characteristic by its brittle fracture and subsequent loss of load bearing capacity which is effective immediately upon the formation of a defect [3].
This is due to the fact that their properties are determined not only by the properties of the individual components but also by their portion per volume unit.
The resultant homogeneity of the fibre-reinforced concrete is essential as it determines the improvement of its properties.
The physical and mechanical properties of fibre-reinforced concrete can be variable depending on the distribution and orientation of the fibres.
These improvements in physical and mechanical properties are (very) vastly desirable especially because concrete is characteristic by its brittle fracture and subsequent loss of load bearing capacity which is effective immediately upon the formation of a defect [3].
This is due to the fact that their properties are determined not only by the properties of the individual components but also by their portion per volume unit.
The resultant homogeneity of the fibre-reinforced concrete is essential as it determines the improvement of its properties.
The physical and mechanical properties of fibre-reinforced concrete can be variable depending on the distribution and orientation of the fibres.
Online since: September 2012
Authors: Marcelo J. Dapino, Suryarghya Chakrabarti
The coupled
problem is solved through successive mechanical and magnetic finite element computations.
The next two sections show the application of the developed unified methodologies to Galfenol and Terfenol-D actuators.Galfenol Transducers Magnetostrictive iron-gallium alloys (Galfenol) possess structural-grade mechanical properties in addition to exhibiting moderate magnetostriction.
Chakrabarti and Dapino [25] formulated a modified energy-averaged model by superimposing a weighted global anisotropy energy on the local anisotropy energy and using an implicit definition for the smoothing factors.
Hence a small frictional force at this end does not affect the dynamic response of the actuator.
Another factor which influences the performance of hydraulic devices is seal friction.
The next two sections show the application of the developed unified methodologies to Galfenol and Terfenol-D actuators.Galfenol Transducers Magnetostrictive iron-gallium alloys (Galfenol) possess structural-grade mechanical properties in addition to exhibiting moderate magnetostriction.
Chakrabarti and Dapino [25] formulated a modified energy-averaged model by superimposing a weighted global anisotropy energy on the local anisotropy energy and using an implicit definition for the smoothing factors.
Hence a small frictional force at this end does not affect the dynamic response of the actuator.
Another factor which influences the performance of hydraulic devices is seal friction.
Online since: January 2021
Authors: Yi Bo Liu, Qiang Xu, Liang Xu
Introduction
Sapphire has been widely used due to its excellent optical and mechanical properties, high strength, hardness, wear resistance, and excellent insulation properties [1].
The diamond concentration affects the efficiency and life of the bit.
Copper can be combined with tin, zinc, manganese, nickel and titanium to form alloy with excellent properties.
(2) This article focuses on the principles and methods of formula design for sapphire bit to improve the properties of matrix.
Yang, Research on the properties and application of sapphire materials, Silicon Valley.21(2014)139-141
The diamond concentration affects the efficiency and life of the bit.
Copper can be combined with tin, zinc, manganese, nickel and titanium to form alloy with excellent properties.
(2) This article focuses on the principles and methods of formula design for sapphire bit to improve the properties of matrix.
Yang, Research on the properties and application of sapphire materials, Silicon Valley.21(2014)139-141
Online since: March 2009
Authors: Krzysztof Koziol, Noorhana Yahya, Mohd Kamarulzaman Bin Mansor
Magnetic properties of nano-crystalline yttrium iron garnet, Y3Fe5O12 and bismuth iron
garnet, Bi3Fe5O12 were studied.
The properties of materials composed of magnetic nanoparticles are results of both the intrinsic and the extrinsic properties of the particles [5].
Studies on magnetic properties as a function of particle size have gained much interest particularly those within nanometer range.
The magnetic properties and the microstructure of the nanoparticles were studied.
It is obvious that the correct sintering temperature is one of the main factors affecting the formation of the garnet phase for all the samples.
The properties of materials composed of magnetic nanoparticles are results of both the intrinsic and the extrinsic properties of the particles [5].
Studies on magnetic properties as a function of particle size have gained much interest particularly those within nanometer range.
The magnetic properties and the microstructure of the nanoparticles were studied.
It is obvious that the correct sintering temperature is one of the main factors affecting the formation of the garnet phase for all the samples.