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Online since: June 2005
Authors: Young Taek Lim, Byung Su Jung, Ki Won Kim, Sang Sik Jeong
Introduction The linear PEO-LiX polymer electrolytes generally have some problems in lithium polymer battery--poor mechanical property, reactivity of lithium metal anode at high temperature and low ionic conductivity at low temperature.
In this case, particle size and content of ceramics play important roles as critical factors.
These polymers were applied to Li/S batteries, and their electrochemical properties and cyclic performance were investigated.
Al2O3 was added to investigate the effects of ceramic filler on electrochemical properties of a Li/S cell.
Summary In this study, we have presented the thermal and electrochemical properties of (PEO)6LiBF4-Al2O3 polymer electrolyte prepared by ball milling.
Online since: September 2011
Authors: Yun Feng Zhang, Yang Liu, Ya Kui Xing
The optimized design of the electronic bus stop board Yang Liu, Yunfeng Zhang, Yakui Xing School of traffic and Mechanical engineering, Shenyang jianzhu university, Shenyang 110068, China yang00132@yahoo.com.cn,yunfengzhang2004@163.com,xingyakui@163.com Key words: electronic bus stop board, GPS, GIS, MapX control Abstract: The normal operation of bus system affects the entire urban operation efficiency and future development.
By contrast, the influence of various factors is comprehensively considered with accurate prediction in the multivariate linear regression model.
Bus system operation has its own properties.
(6) The accuracy of time prediction of bus station directly affects the approval and helpfulness of electronic bus stop board, which determines the necessity to develop the electric bus stop board.
Online since: November 2013
Authors: Che Hassan Che Haron, Jaharah Abd Ghani, Mohd Amri Sulaiman, Juri Saedon, Mohd Shahir Kasim
Inconel 718 has found its niche in many industries [1], due to its unique properties; Ni and Cr provide such as oxidation, carburizing and corrosion resistance that able to retain mechanical strength, even at elevated temperatures [2, 3].
Good mechanical properties together with work hardening lead to increased cutting force causing many problems leading to early tool failure [6].
Results and discussion Throughout this study, a radial DOC was the most significant factor besides cutting speed and feed rate.
However, cutting speed predominantly affects tool wear among the samples within the groups.
This speed variation affects chip flow heat generation which influences the nature of tool wear on the cutting edge.
Online since: September 2011
Authors: Tsung Chia Chen, Jiun Ming Ye
The findings show that geometric ratio is the major factor in the process of squaring circular tubes.
Introduction The square-tube made by piercing or extrusion would produce the non-uniform property in the transverse direction due to the shear deformation in shaping.
The findings show that geometric ratio is the major factor in the process of squaring circular tubes.
Table 1 Material properties of tubes for FE simulation Material [2] Heat treatment n K / MPa σ0.2 / MPa Hard copper As received 0.05 450 280 Soft copper 400℃, 1h 0.46 610 50 , E = 135 MPa, ν = 0.34, σ0.2: yield stress by the offset method.
For the squaring defects of collapse being affected by various process parameters, the simulations for exploring the effect of geometric ratio R/t on the occurrence of collapse were carried out as shown in Fig. 2(d).
Online since: September 2016
Authors: Christina Radlbeck, Mathias Rengstl, Senta Pessel, Martin Mensinger
The mean stress effect was also taken into account in design by introducing a bonus factor [3]
Because of the welding also the reduction factors ro und ru for the strength values in the heat affected zone are presented.
In DIN EN 1999-1-1 material properties for age hardened as well as non age hardened aluminum alloys are listed.
The ratio f0.2 / f0.1 characterizes the solidification of aluminium alloys and depends on the mechanical and thermal manufacturing condition of the structural element.
Stress concentration factor - butt weld [13] h≤1,5 mm+0,1 b, max. 6 mm Figure 3.
Online since: March 2012
Authors: Xiao Jing Li, Pei Xin Qu, Yang Liu
The dry cutting method is a technology applied in mechanical machine that never use cutting fluids.
White layer is an important factors that influence the properties and surface integrity and needs paying much attention to this subject.
High temperature alloy can be in high temperature oxidation and corrosion gas under the working conditions, with excellent thermal properties, thermal stability strong performance and thermal fatigue properties, which are often used in aviation turbine engines, naval turbine engines and power station turbine engine, etc, but its cutting machining is poor, is typical of hard-cutting materials.
Cylinder section processing and past mechanical processing is different, such as the workpiece material and machining precision, etc will have higher requirements.
Mechanical properties and cutting performance of nanocomposite Cr–Si–N coated tool for green machining.
Online since: March 2025
Authors: Adrián Travieso-Disotuar, Ramón Jerez-Mesa, J. Antonio Travieso-Rodriguez, Montserrat Vilaseca
This characteristic enables the direct manufacturing of highly complex parts that are difficult or impossible to fabricate by conventional methods, while also offering mechanical properties comparable to those of wrought materials [4].
The combination of these two processes results in the lowest microporosity and surface roughness among other substantial improvements in micromechanical properties.
The force applied to the surface was a combination of several factors: the pre-loaded force of the spring, the force exerted by the surface irregularities on the tool movement, and the force associated with the vibration of the sonotrode.
Zhang, “Manufacturing Feasibility and Forming Properties of Cu-4Sn in Selective Laser Melting,” Materials, vol. 10, no. 4, p. 333, Mar. 2017, doi: 10.3390/ma10040333
Aydın, “Investigating effects of heat treatment processes on microstructural and mechanical properties of additively manufactured 18ni300 maraging steel,” Master Thesis, Middle East Technical University, 2020.
Online since: January 2022
Authors: B. Siddeswarappa, Mallikarjun Channalli, Prasanna P. Kulkarni
Chemical analysis of RHA &ASA also preheating of the ashes results to remove carbon residues takes a relatively long period of time and higher temperatures with the consequent effect that silica is converted to crystalline forms [15].Burning out temperature and time are important factors to define whether silica remains amorphous as in RHA as well as ASA ash are become crystalline.
[2] Magudu .I.A, Abdulwahab .M, Aigbodion V.S, (2009) , “Effect of iron fillings on the properties and microstructure of cast fiber-polyester/iron filings particulate composite”, Journal of Alloys and Compounds, 476 ,807–811
A study on Properties of Rice Husk Ash and its Use as Cement Replacement Material.
A(2011): Production and Mechanical Properties of A356.2 /RHA Composites, International Journal of Advanced Science and Technology Vol. 33, 51-58
P(2011): Evaluation of Mechanical Properties of Al6061, Fly ash And E-Glass Fiber Reinforced Hybrid Metal Matrix Composites, ARPN Journal of Engineering and Applied Sciences, VOL. 6, NO. 5,40-44
Online since: January 2011
Authors: Yi Xin Shen, Peng Wu, Zheng Feng Lu, Qi Rong Dong, Zhi Hai Fan, Huan Xiang Zhang, Feng Zhang
Nerve growth factor receptor (NGFR) p75 were applied to identify OECs by immunostaining.
OECs could secret various neurotrophic factors and signal molecules, such as brain-derived neurotrophic factor (BDNF), nerve growth factor (NGF), glia cell line-derived neurotrophic factor (GDNF) and NT-4/5 [4], which could imposed on the microenvironment.
The nanofibers orientation in SF tube affects the mechanical property of SF tube.
In order to get an intuitive and three-dimensional cell morphology, SEM was applied to observe the adhesion and spreading properties of OECs on different materials. samples were rinsed with PBS for three times and respectively fixed in 4% glutaraldehyde and 1% osmic acid for 1h.
Online since: January 2013
Authors: Yu Kun Ma, Sheng Liang Zheng, Bin Song Wang, Yan Jie Bi
The affecting of initial pH value on decolorization rate.
When pH of 3, higher H+ concentration cause a inhibition of hydroxyl radical generation, oxidative degradation affect the heterogeneous Fenton system, thereby affecting the decolorization rate.
The affecting of H2O2 dosage on decolorization rate.
The affecting of dye solution temperature on decolorization rate.
The affecting of reaction residence time on decolorization rate.
Showing 19121 to 19130 of 26166 items