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Online since: May 2012
Authors: Wen Xi Fu, Hong Chun Zheng, Yu Long Cui, Jin Bing Wei
Based on field investigations and laboratory studies, this paper discusses the factors that affected slope stability of Guantianba and suggests that some monitoring and remedial measures should be taken to protect the wealth and life of residents.
In order to evaluate the possible damages that the landslides may cause and to protect the wealth and life of residents after the first impoundment of the reservoir, it is undoubtedly necessary to investigate the influence factors of the slide.
Fig.6 Part of a house moved away Fig.7 Tensile deformation in the region C Possible triggering factors on the deformation and slip of the landslide In terms of triggering factors, it can be the combined effect of intensive rainfall, manual load at the rear edge of the landslide, vegetation, excavation and vibration of the highway.
Stability evaluation of the landslide Two samples which are slide mass a and slide mass b from the site of the Guantianba landslide were tested for index properties including water content(w), osmotic coefficient (k), specific gravity(Gs), void ratio(e), modulus of compression(E0.1-0.2), compressibility coefficient(a0.1-0.2) and the granular composition, as shown in Table 1.
Some mechanical parameters, such as cohesion(c), friction angle (φ) and the unit weight were also measured, as shown in Table 2.
In order to evaluate the possible damages that the landslides may cause and to protect the wealth and life of residents after the first impoundment of the reservoir, it is undoubtedly necessary to investigate the influence factors of the slide.
Fig.6 Part of a house moved away Fig.7 Tensile deformation in the region C Possible triggering factors on the deformation and slip of the landslide In terms of triggering factors, it can be the combined effect of intensive rainfall, manual load at the rear edge of the landslide, vegetation, excavation and vibration of the highway.
Stability evaluation of the landslide Two samples which are slide mass a and slide mass b from the site of the Guantianba landslide were tested for index properties including water content(w), osmotic coefficient (k), specific gravity(Gs), void ratio(e), modulus of compression(E0.1-0.2), compressibility coefficient(a0.1-0.2) and the granular composition, as shown in Table 1.
Some mechanical parameters, such as cohesion(c), friction angle (φ) and the unit weight were also measured, as shown in Table 2.
Online since: January 2013
Authors: Zhi Yang Yuan
Research on the Application of GSHP (Ground Source Heat Pump)
Technology with Composite Properties of Biochemical Materials
Zhiyang Yuan 1,2
1Jilin University
2Changchun institute of technology
Changchun, China
123096510@qq.com
Keywords: GSHP (Ground Source Heat Pump);Composite Properties of Biochemical Materials; sustainable development; research
Abstract.
Coal, fuel oil and natural gas required in conventional heating produce large quantities of pollutants in burning and cause damage to the atmospheric environment, which is one of the main factors causing global climate change [6].
Analysis of economic benefits The economy of the GSHP Technology with Composite Properties of Biochemical Materials system is determined by various factors, such as the regional and geological conditions, the energy structure and price.
Conclusion Ground Source Heat Pump Technology with Composite Properties of Biochemical Materials, it will cause more and more people's attention and favor.
Beijing: Mechanical Industry Press, 2006
Coal, fuel oil and natural gas required in conventional heating produce large quantities of pollutants in burning and cause damage to the atmospheric environment, which is one of the main factors causing global climate change [6].
Analysis of economic benefits The economy of the GSHP Technology with Composite Properties of Biochemical Materials system is determined by various factors, such as the regional and geological conditions, the energy structure and price.
Conclusion Ground Source Heat Pump Technology with Composite Properties of Biochemical Materials, it will cause more and more people's attention and favor.
Beijing: Mechanical Industry Press, 2006
Online since: April 2015
Authors: Xiang Li, Wei Feng Li, Liu Yun Xu
In the process of analyzing of mechanical behavior, many influence factors need to be considered, such as surface load, mode of soil, model of pipe, interaction between pipe and soil, etc.
The surface load mainly affects the local region under the acting surface of the soil. 4.3 Analysis of influence factors The surface load makes PSP having an elliptical deformation through the soil, which makes local area of the PSP in a high stress state.
To analyze the mechanical properties of PSP under non-axis symmetric surface load and their main influence factors, it is necessary to do research on internal pressure, properties of overlying soil, geometry parameters of PSP and surface load, etc. 4.3.1 Inner pressure A serial of inner pressure, ranging from 0.5MPa to 4MPa, are used to analyze the influence of inner pressure on PSP under the non-axis symmetric surface load.
Analyses on the short-term mechanical properties of Plastic Pipe Reinforced by Cross Helically Wound Steel Wires.
Experimental Investigation on Mechanical Properties of Plastic Pipes Reinforced by Cross Helically Wound Steel Wires.
The surface load mainly affects the local region under the acting surface of the soil. 4.3 Analysis of influence factors The surface load makes PSP having an elliptical deformation through the soil, which makes local area of the PSP in a high stress state.
To analyze the mechanical properties of PSP under non-axis symmetric surface load and their main influence factors, it is necessary to do research on internal pressure, properties of overlying soil, geometry parameters of PSP and surface load, etc. 4.3.1 Inner pressure A serial of inner pressure, ranging from 0.5MPa to 4MPa, are used to analyze the influence of inner pressure on PSP under the non-axis symmetric surface load.
Analyses on the short-term mechanical properties of Plastic Pipe Reinforced by Cross Helically Wound Steel Wires.
Experimental Investigation on Mechanical Properties of Plastic Pipes Reinforced by Cross Helically Wound Steel Wires.
Online since: February 2013
Authors: Yue Chao Wang, Hong Yi Li, Ren Jia Tan, Hao Liu, Cheng Zhang
The Quasilinear Viscoelastic Model are introduced into the research of blood vessels and other organ’s tissue, e.g. the expression for efficiency of locomotion for the endoscopic robot [8], the experiment and theory research of viscoelasticity for porcine esophagus et.al. [9]
The researches above studied in part the factors which may influence the mechanical interaction about the medicine instrument inside the GI tract, while the limitations exist.
The tested frictional force is complex and the frictional effect is affected strongly by the tissue’s material mechanics, in addition, it is difficult to describe exactly how the affection works, with lacking of the inner mechanism revealing out.
In fact, the major structural protein of connective tissue is collagen, and the most important properties of collagenous tissue is functionally mechanical.
Chong, Directional, Regional and Layer Variations of Mechanical Properties of Esophageal Tissue and its Interpretation Using a Structure-Based Constitutive Model.
Jang, Experimental Investigation of Frictional and Viscoelastic Properties of Intestine for Microendoscope Application.
The tested frictional force is complex and the frictional effect is affected strongly by the tissue’s material mechanics, in addition, it is difficult to describe exactly how the affection works, with lacking of the inner mechanism revealing out.
In fact, the major structural protein of connective tissue is collagen, and the most important properties of collagenous tissue is functionally mechanical.
Chong, Directional, Regional and Layer Variations of Mechanical Properties of Esophageal Tissue and its Interpretation Using a Structure-Based Constitutive Model.
Jang, Experimental Investigation of Frictional and Viscoelastic Properties of Intestine for Microendoscope Application.
Online since: January 2016
Authors: Andreas Öchsner, Sadegh Imani Yengejeh, Seyedeh Alieh Kazemi
Introduction
In the past few decades, carbon nanotubes (CNTs) have attracted a large interest in material science and engineering because of their outstanding mechanical, thermal and electrical properties [1,2,3].
Afterwards, Ghavamian and Öchsner [10] analyzed the effect of defects on the buckling properties of nanotubes.
Geometry, mass, and applied boundary conditions are the factors which influence this quantity.
Cao, Nano Structures and Nanomaterials, Synthesis, Properties and Applications, Imperial College Press, London, 2004
Influence of structural imperfections and doping on the mechanical properties of single-walled carbon nanotubes.
Afterwards, Ghavamian and Öchsner [10] analyzed the effect of defects on the buckling properties of nanotubes.
Geometry, mass, and applied boundary conditions are the factors which influence this quantity.
Cao, Nano Structures and Nanomaterials, Synthesis, Properties and Applications, Imperial College Press, London, 2004
Influence of structural imperfections and doping on the mechanical properties of single-walled carbon nanotubes.
Online since: November 2021
Authors: Samer Al Martini, Abdel Rahman Magdy El-Sheikh, Reem Sabouni
However, these properties need to be verified under hot weather conditions.
SCC has also good mechanical properties and strength that made it suitable to be used for both in situ and precast concrete construction.
Slump of concrete is affected by seveal factors including: the method and duration of transportation, quantity and characteristics of cementitious materials, grading shape and surface texture of fine and coarse aggregates, entrained air, water content, concrete and ambient air temperatures, admixtures.
The paper investigates the effect of admixture dosage on fresh, mechanical properties and durability of SCC under hot weather.
This test includes some factors, such as temperature, dosage of superplasticizer.
SCC has also good mechanical properties and strength that made it suitable to be used for both in situ and precast concrete construction.
Slump of concrete is affected by seveal factors including: the method and duration of transportation, quantity and characteristics of cementitious materials, grading shape and surface texture of fine and coarse aggregates, entrained air, water content, concrete and ambient air temperatures, admixtures.
The paper investigates the effect of admixture dosage on fresh, mechanical properties and durability of SCC under hot weather.
This test includes some factors, such as temperature, dosage of superplasticizer.
Online since: May 2004
Authors: C. Fujioka, Hiroaki Takeda, Tadashi Shiosaki, Soichiro Okamura
Results and Discussion
Ferroelectric Properties.
It was reported that the sintering temperature strongly affects the ferroelectric properties of the strontium bismuth tantalate ceramics [9,10].
Piezoelectric Properties.
The mechanical quality factor Qm is also listed.
Table 1 Electromechanical coupling factors (kij) and mechanical quality factors (Qm) of SxByT(x=0.8, y=0.2) ceramics compared with those of the other BLSFs.
It was reported that the sintering temperature strongly affects the ferroelectric properties of the strontium bismuth tantalate ceramics [9,10].
Piezoelectric Properties.
The mechanical quality factor Qm is also listed.
Table 1 Electromechanical coupling factors (kij) and mechanical quality factors (Qm) of SxByT(x=0.8, y=0.2) ceramics compared with those of the other BLSFs.
Online since: July 2014
Authors: G. Buvanashekaran, R. Sivasankari, V. Balusamy
This study aims at studying the effect of upset current on weld properties.
Good correlation exists between the mechanical properties/microstructure and upset current.
The radial magnetic flux density is an important factor in arc rotation and weld quality [4-8].
The chemical composition and the material properties of the steel tube are given in Table 1 and 2 respectively.
Ø Good correlation exists between the mechanical properties and microstructure.
Good correlation exists between the mechanical properties/microstructure and upset current.
The radial magnetic flux density is an important factor in arc rotation and weld quality [4-8].
The chemical composition and the material properties of the steel tube are given in Table 1 and 2 respectively.
Ø Good correlation exists between the mechanical properties and microstructure.
Online since: June 2012
Authors: Xiao Zheng Xie, Yun Ping Yao, Rong Zhen Zhao, Wu Yin Jin
China
ax2zdavy@126.com
Key words: high-speed milling, Stainless Steel, cutting force, prediction
Abstract: According to the components, mechanical properties of difficult-to-process material (26NiCrMoV145)as well as characteristics of high-speed machining, modelling and prediction of cutting force in high-speed milling is studied.
The method of poor prediction in more varied cutting factors and bad cutting situation.
In future studied, more milling force affecting factors should be considered to improve the milling force model.
Zhang, China Mechanical Engineering, Vol.9(1998) No.2, pp.41-44
[10] Yan Bin, Xu Anping, China Mechanical Engineering, Vol.13(2002) No.2, pp. 160-163.
The method of poor prediction in more varied cutting factors and bad cutting situation.
In future studied, more milling force affecting factors should be considered to improve the milling force model.
Zhang, China Mechanical Engineering, Vol.9(1998) No.2, pp.41-44
[10] Yan Bin, Xu Anping, China Mechanical Engineering, Vol.13(2002) No.2, pp. 160-163.
Online since: November 2013
Authors: Wei Guo
The particle motion and power theory analysis of centrifugal field
Wei Guo1, a *
1School of Mechanical Engineering, University of Jinan, Jinan250022,China
agw420@126.com
Keywords: test machine;particle motion;numerical analysis
Abstract.
This paper discusses accelerated stress conditions of ore particles in the vertical impact test machine rotor passage through numerical analysis method, and to determine the relationship between the movement of particles and the power and the machine parameters.The results show that:In the test machine rotor, motion law of ore particles is determined, and by expression for the particle displacement, speed and power of the numerical analysis method.If the test machine, gravity effects are negligible;Speed is the main factor affecting the characteristics of particle movement, but should not exclude the influence of particle volume and surface quality;Chasing is never occur in the process of particles;With calculated by the theoretical formula of reasonable size of rotor.
Introduction The vertical shaft impact crusher with cubic energy consumption and product performance and Lower energy consumption, now in various gravel field is widely used, has replaced the other sand making equipment[1].But because the characteristics of technology and properties of its own, resulting in accelerated process of granular complex.In addition, the working environment of the extensive also determines the acceleration of particles is uncertain, the production efficiency and product quality to influence directly, because many crusher manufacturers and researchers pay enough attention.They focus on the principle, the performance of the ore particles impact crusher crusher[2-3], understand the dynamic characteristics and impact angle and particle size effect on impact results, the particle breakage reason and crushing manner, to determine the impact results.
The expression can know, speed is the main factor affecting the characteristics of particle movement, the rotor speed is greater at the same time particle moving distance; particle acceleration in never chase phenomenon.
This paper discusses accelerated stress conditions of ore particles in the vertical impact test machine rotor passage through numerical analysis method, and to determine the relationship between the movement of particles and the power and the machine parameters.The results show that:In the test machine rotor, motion law of ore particles is determined, and by expression for the particle displacement, speed and power of the numerical analysis method.If the test machine, gravity effects are negligible;Speed is the main factor affecting the characteristics of particle movement, but should not exclude the influence of particle volume and surface quality;Chasing is never occur in the process of particles;With calculated by the theoretical formula of reasonable size of rotor.
Introduction The vertical shaft impact crusher with cubic energy consumption and product performance and Lower energy consumption, now in various gravel field is widely used, has replaced the other sand making equipment[1].But because the characteristics of technology and properties of its own, resulting in accelerated process of granular complex.In addition, the working environment of the extensive also determines the acceleration of particles is uncertain, the production efficiency and product quality to influence directly, because many crusher manufacturers and researchers pay enough attention.They focus on the principle, the performance of the ore particles impact crusher crusher[2-3], understand the dynamic characteristics and impact angle and particle size effect on impact results, the particle breakage reason and crushing manner, to determine the impact results.
The expression can know, speed is the main factor affecting the characteristics of particle movement, the rotor speed is greater at the same time particle moving distance; particle acceleration in never chase phenomenon.