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Online since: January 2025
Authors: G. Lekhasri, K.M. Bhaarani, D. Durgadevi, M. Sowmiya
· To lower the risk factor and enhance the product quality
All determined and affecting parameters related to fiber, yarn, fabric construction, sewing thread, and sewing machines must be investigated in order to design appropriate corrective measurements linked to machine design, fabric parameters, and sewing thread [34].
There are quantifiable factors in both.
[47] Rim Cheriaa, Imed Ben Marzoug and Faouzi Sakli, (2015), “Effects on Industrial Ironing on Mechanical and Dimensional Properties of cotton, wool and polyester fabrics”, Indian Journal of Fibre and Textile Research, Volume 41, No 2, DOI: 10.56042/ijftr.v41i2.7119
El-Kateb, (2015), “An investigation of factors affect ends- down rate in embroidery machine”, Journal of American Science, Volume 11(6):39-42, ISSN: 1545-1003
All determined and affecting parameters related to fiber, yarn, fabric construction, sewing thread, and sewing machines must be investigated in order to design appropriate corrective measurements linked to machine design, fabric parameters, and sewing thread [34].
There are quantifiable factors in both.
[47] Rim Cheriaa, Imed Ben Marzoug and Faouzi Sakli, (2015), “Effects on Industrial Ironing on Mechanical and Dimensional Properties of cotton, wool and polyester fabrics”, Indian Journal of Fibre and Textile Research, Volume 41, No 2, DOI: 10.56042/ijftr.v41i2.7119
El-Kateb, (2015), “An investigation of factors affect ends- down rate in embroidery machine”, Journal of American Science, Volume 11(6):39-42, ISSN: 1545-1003
Online since: February 2010
Authors: A.S. Adavbiele
Adavbiele
Department of Mechanical Engineering,
Ambrose Alli University, PMB 14, Ekpoma, Nigeria
engradavbiele@yahoo.com
[Received 1 July 2009, accepted 20 January 2010]
Keywords: Second law, exergy, EGM, optimization, thermofluid systems
Abstract: This paper presents an overview of the concept of second law applications to all
processes of thermofluid systems.
The availability-loss concept allows us to think about entropy generation in terms of the more concrete notion of lost mechanical work.
An understanding of the relations between exergy/EGM and the environment may reveal the underlying fundamental patterns and forces affecting changes in the environment, and help researchers to deal better with environmental damage.
In order to improve the overall system efficiency an appropriate assessment of real achievable economic and exergy factors may then be considered.
PhD thesis, Department of Mechanical Engineering, University of Twente, Netherlands. (1997) Htm.
The availability-loss concept allows us to think about entropy generation in terms of the more concrete notion of lost mechanical work.
An understanding of the relations between exergy/EGM and the environment may reveal the underlying fundamental patterns and forces affecting changes in the environment, and help researchers to deal better with environmental damage.
In order to improve the overall system efficiency an appropriate assessment of real achievable economic and exergy factors may then be considered.
PhD thesis, Department of Mechanical Engineering, University of Twente, Netherlands. (1997) Htm.
Online since: September 2013
Authors: Shou Ping Shang, Long Li
The construction of the houses does not satisfy the requirements for seismic resistance into consideration, tend to be small earthquakes can cause of structural damage and affect the normal use function.
HPFL has excellent physical and mechanical performance, durability and corrosion resistance and other characteristics, the reinforcement is very suitable for civil engineering area.
An excellent property of HPFL is low shrinkage
At the same time, the strength of cement mortar is also affecting the destruction as another factor.
Its construction is simple, can be used in outdoor reinforcement structure without affecting the indoor furniture and wall decoration.
HPFL has excellent physical and mechanical performance, durability and corrosion resistance and other characteristics, the reinforcement is very suitable for civil engineering area.
An excellent property of HPFL is low shrinkage
At the same time, the strength of cement mortar is also affecting the destruction as another factor.
Its construction is simple, can be used in outdoor reinforcement structure without affecting the indoor furniture and wall decoration.
Online since: September 2011
Authors: Zhong Zhang, Yu Niu, Feng Xu, Xiao Fang Hu, Yong Cun Li, Jing Zhao
A Microscopic Model of the asymmetric neck growth during sintering process upon the asymmetric particle arrangement*
Yu Niu1, a, Feng Xu1, b, Xiaofang Hu1, c, Yongcun Li1, d, Jing Zhao1, e,
Zhong Zhang2, f
1 Key Laboratory of Mechanical Behavior and Design of Materials, Chinese Academy Sciences, University of Science and Technology of China, Hefei 230026, China;
2 National Center for Nanoscience and Technology of China, Beijing 100190, China
a niuyu@mail.ustc.edu.cn, b xufeng3@ustc.edu.cn, c huxf@ustc.edu.cn,
d ustclyc@ustc.edu.cn, e zhjnancy@mail.ustc.edu.cn, f zhong.zhang@nanoctr.cn
Corresponding author: Feng Xu, Tel.: +86-551-3600564 E-mail: xufeng3@ustc.edu.cn
Key words: sintering, asymmetric neck growth, particle arrangement, Monte Carlo model
Abstract
A kinetic Potts Monte Carlo model was used to investigate the microstructural evolution of a three particles configuration during sintering.
Moreover, it leads to the changes in the bond strength between particles and the structure of grain boundaries, which seriously affects the macroscopic mechanical properties of the material.
The probability of acceptance is calculated by the following equation: (2) Here is a temperature factor and is taken as 0.8 here, is the energy change.
Moreover, it leads to the changes in the bond strength between particles and the structure of grain boundaries, which seriously affects the macroscopic mechanical properties of the material.
The probability of acceptance is calculated by the following equation: (2) Here is a temperature factor and is taken as 0.8 here, is the energy change.
Online since: August 2013
Authors: Zhong Yin Guo, Shao Hui Li, Yong Shun Yang
Mechanical parameters of asphalt mixtures, cement stabilized granular, and granular are measured in laboratory.
Modeling methodology In simulations, factors such as pavement surface deflection, bottom strains of asphalt layers, maximum vertical strain of the subgrade, maximum shear strain and stress of asphalt layers are taken into considerations[6,7].
(Eq. 2) where k=m k≠m Pavement effective radiations are determined by many factors such as the temperature of the ground and the air, the air moisture and the transmittance etc..
There are, of course, some other factors affecting the maximum strain of the asphalt layers, and it’s quite complex.
Fig. 10 Temperature field of pavement 2 Fig. 11 Road rut From figure 10, we can see that factors such as air temperature, wind speed, sun radiation conditions do have significant effect on temperature field of the pavement surface.
Modeling methodology In simulations, factors such as pavement surface deflection, bottom strains of asphalt layers, maximum vertical strain of the subgrade, maximum shear strain and stress of asphalt layers are taken into considerations[6,7].
(Eq. 2) where k=m k≠m Pavement effective radiations are determined by many factors such as the temperature of the ground and the air, the air moisture and the transmittance etc..
There are, of course, some other factors affecting the maximum strain of the asphalt layers, and it’s quite complex.
Fig. 10 Temperature field of pavement 2 Fig. 11 Road rut From figure 10, we can see that factors such as air temperature, wind speed, sun radiation conditions do have significant effect on temperature field of the pavement surface.
Online since: March 2015
Authors: Fu Yun Zhu, Xing Xing Wang, Zhi Hui Lu, Hong Jun Ni, Shuai Shuai Lv
Developed of high voltage bushing with new shielding technology
for high voltage switch cabinet
Fuyun Zhu1,2, Zhihui Lu1,2, Hongjun Ni1, Shuaishuai Lv1 and Xingxing Wang1,a,*
1 School of Mechanical Engineering, Nantong University, Nantong, Jiangsu, 226019, China
2 Nantong Power Supply Company, Jiangsu Electric Power Company, Nantong, Jiangsu, 226000, China
a wangxx@ntu.edu.cn (*corresponding author)
Key words: high voltage, switch cabinet, bushing, shielding technology, corona.
High voltage bushing is the core component of high-voltage wire inside high voltage switch cabinet, it is the main insulation when high voltage conductor was connected between high voltage switchgear, insulation quality of high voltage bushing will directly affect the overall insulation performance of high voltage switch cabinet and reliability of high-voltage switch cabinet’s operation [5,6].
To compare insulation properties of three type samples, voltage resistance and partial discharge of samples were tested by related equipments.
Fig.3 Photo of electrical performance test Table 1 shows the electrical properties of three samples, it can be seen from the table that average corona start voltage of the sample C is the highest, and the sample A is the minimum; average corona extinction voltage of the sample C is the highest, and the sample A is the minimum.
Rersearch on preparation and properties of high performance insulating polyethylene nanocomposites and semi-conductive shield polyethylene nanocomposites[D].
High voltage bushing is the core component of high-voltage wire inside high voltage switch cabinet, it is the main insulation when high voltage conductor was connected between high voltage switchgear, insulation quality of high voltage bushing will directly affect the overall insulation performance of high voltage switch cabinet and reliability of high-voltage switch cabinet’s operation [5,6].
To compare insulation properties of three type samples, voltage resistance and partial discharge of samples were tested by related equipments.
Fig.3 Photo of electrical performance test Table 1 shows the electrical properties of three samples, it can be seen from the table that average corona start voltage of the sample C is the highest, and the sample A is the minimum; average corona extinction voltage of the sample C is the highest, and the sample A is the minimum.
Rersearch on preparation and properties of high performance insulating polyethylene nanocomposites and semi-conductive shield polyethylene nanocomposites[D].
Online since: April 2015
Authors: De Chun Zhou, Zhong Liang Qiao, Xue Mei Bai
The image quality is affected directly because of the dark silks.
Finally, the environment is an important factor during the drawing process.
[6] Yu Fengxia,Zhou Hang,Zhou Dawei, et al.Preparation and properties of acid-soluble method for image bundles[J].Journal of Changchun University of Science and Technology(Natural Science Edition),2012,35(3):154~157
Beijing: Mechanical Industrial Publishing House, 2006. 518-520
Preparation and Properties of Microstructure Flexible Image Transfer Fiber Materials.
Finally, the environment is an important factor during the drawing process.
[6] Yu Fengxia,Zhou Hang,Zhou Dawei, et al.Preparation and properties of acid-soluble method for image bundles[J].Journal of Changchun University of Science and Technology(Natural Science Edition),2012,35(3):154~157
Beijing: Mechanical Industrial Publishing House, 2006. 518-520
Preparation and Properties of Microstructure Flexible Image Transfer Fiber Materials.
Online since: December 2024
Authors: Roman Maiboroda, Maxim Zhuravskij, Valerii Karpuntsov, Yurii Otrosh
The simulation model allows you to calculate the area of easily removable structures depending on the input parameters, to obtain the dynamics of the change in the parameters of the combustible medium depending on the change in the properties of the combustible gases that are in the room.
1 Introduction
Industry often uses a variety of hazardous substances, such as flammable and combustible liquids and gases, which must be stored in special conditions [1, 2].
The results show that the bearing capacity is affected by distance, charge size, and boundary conditions.
It has been shown that elevated temperatures will lead to a deterioration in the mechanical properties of steel and concrete during a fire in buildings and to the failure of structural components.
A finite element model was developed to simulate the mechanical behaviour of reinforced concrete elements during progressive collapse.
Haidachuk, Stressed State in the Vicinity of a Hole in Mechanical joint of Composite Parts, International Applied Mechanics. 57, 2 (2021) 234–247
The results show that the bearing capacity is affected by distance, charge size, and boundary conditions.
It has been shown that elevated temperatures will lead to a deterioration in the mechanical properties of steel and concrete during a fire in buildings and to the failure of structural components.
A finite element model was developed to simulate the mechanical behaviour of reinforced concrete elements during progressive collapse.
Haidachuk, Stressed State in the Vicinity of a Hole in Mechanical joint of Composite Parts, International Applied Mechanics. 57, 2 (2021) 234–247
Online since: November 2010
Authors: Hong Lin, Xiao Chong Zhao, Yi Zhu Liu, Xin Li, Jian Bao Li
However, significant promotion of electron
transport properties and consequently the photovoltaic performances of such devices are perpetually
hindered by the key problem that the poor heat tolerance of the plastic substrates employed in
flexible DSCs makes high-temperature sintering of the photoanode films impossible.
All these factors have effects on preventing electron transport and promoting electron recombination.
Electron transport and electron recombination in flexible photoanode of DSCs Factors determining efficiency.
In this chapter, the factors determining the efficiency of DSC will be discussed in more detail.
How to prepare TiO2 films at low temperature with properties of both improvement of electron transport, and also suppression of the electron recombination, is still a challenge needed to further develop.
All these factors have effects on preventing electron transport and promoting electron recombination.
Electron transport and electron recombination in flexible photoanode of DSCs Factors determining efficiency.
In this chapter, the factors determining the efficiency of DSC will be discussed in more detail.
How to prepare TiO2 films at low temperature with properties of both improvement of electron transport, and also suppression of the electron recombination, is still a challenge needed to further develop.
Online since: September 2016
Authors: Tatiana Belkina, Andrii Bieliatynskyi, Anna Muratova, Yury Barabanshchikov
Properties of cement with a low content of barium oxide (5.5%) are close to the properties of the standard Portland cement.
Special properties of barium cements make them suitable for structures affected by prolonged exposure to high temperatures and ionizing radiation [1-3].
With the same water-cement ratio equal to 0.40, this cement showed the highest fluidity of cement paste, and its mechanical properties were found to be the lowest.
For values of q, ΔT must be multiplied by a constant factor in brackets in the Eq. 2.
Topcu, Properties of heavyweight concrete produced with barite, Cem. and Concr.
Special properties of barium cements make them suitable for structures affected by prolonged exposure to high temperatures and ionizing radiation [1-3].
With the same water-cement ratio equal to 0.40, this cement showed the highest fluidity of cement paste, and its mechanical properties were found to be the lowest.
For values of q, ΔT must be multiplied by a constant factor in brackets in the Eq. 2.
Topcu, Properties of heavyweight concrete produced with barite, Cem. and Concr.