Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: May 2017
Authors: Andrew C. Eloka-Eboka, Freddie L. Inambao
These are all major factors for the development of economically, rational, renewable energy technology platforms [1, 2].
These also affect the injection and combustion behaviour of the fuel.
Chemo-physical properties of biodiesel are the most important and indispensable factors to be considered in the production of biodiesel.
(2006) Fuel structure and properties of biodiesel produced by the peroxidation process.
Fuel properties Comparison of species of Microalgae and Selected second-generation oil feedstocks.
These also affect the injection and combustion behaviour of the fuel.
Chemo-physical properties of biodiesel are the most important and indispensable factors to be considered in the production of biodiesel.
(2006) Fuel structure and properties of biodiesel produced by the peroxidation process.
Fuel properties Comparison of species of Microalgae and Selected second-generation oil feedstocks.
Online since: October 2013
Authors: Wen Hua Zeng, Qi Zhong, Xiao Yang Huang, Bo Liang Wang
Progress and Trend of Artificial Heart Valve Simulation
The design of an artificial heart valve’s load distribution and dynamics of valves components, which is together with material properties, determines performance and durability.
This research would allow the determination of factors influencing durability of the current prosthetic valve design and proposed improvement to it. 2.
Progress and Trend of Nature Heart Valve Simulation A number of computational challenges have always been present in modeling natural valve: its irregular geometry, complexity material properties, contact between components and dynamics.
According to previous studies, the natural leaflets can be considered as three-layered laminated structures: atrialis, ventricularis and fibrosa layer, with each layer having different thickness and mechanical properties[45].
Mohammadi,Design and simulation of mechanical heart valve prostheses.
This research would allow the determination of factors influencing durability of the current prosthetic valve design and proposed improvement to it. 2.
Progress and Trend of Nature Heart Valve Simulation A number of computational challenges have always been present in modeling natural valve: its irregular geometry, complexity material properties, contact between components and dynamics.
According to previous studies, the natural leaflets can be considered as three-layered laminated structures: atrialis, ventricularis and fibrosa layer, with each layer having different thickness and mechanical properties[45].
Mohammadi,Design and simulation of mechanical heart valve prostheses.
Online since: March 2025
Authors: Wasan R. Saleh, Salma M. Hassan, Aqeel Y. Taradh, Fuad T. Ibrahim
Conductive polymers (CPs) are organic substances that possess mechanical and physical properties similar to traditional polymers, as well as the special electrical properties of metals.
Classes can be classified based on their properties, sizes, and shapes.
Due to changes in the surface of the manufactured composite, a particular mixture can yield good properties of one gas and poor properties of another [9].
[4] Pang, A.L., Arsad, A. and Ahmadipour, M., Synthesis and factor affecting on the conductivity of polypyrrole: a short review.
[6] Khan, I., Saeed, K. and Khan, I., Nanoparticles: Properties, applications and toxicities.
Classes can be classified based on their properties, sizes, and shapes.
Due to changes in the surface of the manufactured composite, a particular mixture can yield good properties of one gas and poor properties of another [9].
[4] Pang, A.L., Arsad, A. and Ahmadipour, M., Synthesis and factor affecting on the conductivity of polypyrrole: a short review.
[6] Khan, I., Saeed, K. and Khan, I., Nanoparticles: Properties, applications and toxicities.
Online since: February 2011
Authors: Cheng Wang, Xiong Wei Yang, Bao Kun Yang
Problems in the Application of Commercial CAD/CAE Software and
Improvement Methods
Cheng Wang a, Xiongwei Yang b and Baokun Yang c
Key Laboratory for Strength and Vibration of Mechanical Structures, Xi’an Jiaotong University, Xi’an 710049 China
awc071@163.com, b xiongwei@stu.xjtu.edu.cn, cyang.bk@stu.xjtu.edu.cn
Keywords: CAD/CAE; Commercial Software; Problems; Software engineer; Improvement Methods.
At the same time, in pursuit of general-utility, a lot of parameters need to be set in commercial software, but any parameter setting mistake may greatly affect the simulation results, which is a too high starting point for an engineer who has rare experience.
Various performance, strength, reliability and durability of mechanical equipment can be calculated and analyzed as early as in product development stage.
Thus, the key factor of digital design is cultivating compound talents with plenty of relative knowledge and experience.
In the future, experiments are not independent behavior but vital factor that will promote the whole R&D process.
At the same time, in pursuit of general-utility, a lot of parameters need to be set in commercial software, but any parameter setting mistake may greatly affect the simulation results, which is a too high starting point for an engineer who has rare experience.
Various performance, strength, reliability and durability of mechanical equipment can be calculated and analyzed as early as in product development stage.
Thus, the key factor of digital design is cultivating compound talents with plenty of relative knowledge and experience.
In the future, experiments are not independent behavior but vital factor that will promote the whole R&D process.
Online since: September 2011
Authors: Er Yu Zhu, Li Zhu, Tian Xing Cheng, Xiao Yin Lv, Yong Zheng Zhou
And it will directly affect the bearing capacity and durability of the whole prestressed structure.
The results show that the method of using heat shrinkable material to protect anchor has the advantages of simple and reliable construction technology, short construction period, low cost, good electrical insulation, high sealing property and anti-stripping strength.
Polymer materials after cross linking improved greatly in mechanical strength, heat resistance, chemical solvents, anti-aging, especially the acid and alkali resistance.
With excellent properties among flame retardant, insulation, soft and flexible, low shrink temperature and quick shrinkage, heat shrinkable material has been widely used in wire connections, solder joint protection, wire end processing, wire signs, antirust and antisepsis treatment of metal, insulation protection of resistors and capacitors, antenna conservation and other aspects.
These factors have great impacts to attenuate the durability of the entire PC system.
The results show that the method of using heat shrinkable material to protect anchor has the advantages of simple and reliable construction technology, short construction period, low cost, good electrical insulation, high sealing property and anti-stripping strength.
Polymer materials after cross linking improved greatly in mechanical strength, heat resistance, chemical solvents, anti-aging, especially the acid and alkali resistance.
With excellent properties among flame retardant, insulation, soft and flexible, low shrink temperature and quick shrinkage, heat shrinkable material has been widely used in wire connections, solder joint protection, wire end processing, wire signs, antirust and antisepsis treatment of metal, insulation protection of resistors and capacitors, antenna conservation and other aspects.
These factors have great impacts to attenuate the durability of the entire PC system.
Online since: October 2025
Authors: Stanislav Dushkin, David Kovtun, Nina Rashkevich
The effect of a magnetic field on the physical properties of treated water has been considered in many studies [20–26].
The dependence of changes in the physical and chemical properties of water on magnetic field treatment has been experimentally established.
It also depends on hydration of functional groups, their number, on the intensity of interaction of counterions with fixed groups and some other factors, which is confirmed by experimental data [25, 26].
Kaliakin, Alteration of physicochemical properties of tap water passing through different intensities of magnetic field.
Khalifa Boufa, Investigation of the Effect of Magnetic Field on some Physical Properties of Water.
The dependence of changes in the physical and chemical properties of water on magnetic field treatment has been experimentally established.
It also depends on hydration of functional groups, their number, on the intensity of interaction of counterions with fixed groups and some other factors, which is confirmed by experimental data [25, 26].
Kaliakin, Alteration of physicochemical properties of tap water passing through different intensities of magnetic field.
Khalifa Boufa, Investigation of the Effect of Magnetic Field on some Physical Properties of Water.
Online since: March 2008
Authors: Jacques Stolarz
In this case, at least two additional factors must be taken into account.
AS12 AS13 AS17 The principal requirement for a good reproducibility of mechanical properties of casting alloys, in particular in fatigue, is the lack of solidification defects and the constant scale of microstructure homogeneity.
Tensile Properties The tensile properties of all investigated alloys are listed in Table 2.
Tensile properties of model Al-Si alloys.
Summary - Microstructural Factors in Fatigue Model Al-Si Alloys.
AS12 AS13 AS17 The principal requirement for a good reproducibility of mechanical properties of casting alloys, in particular in fatigue, is the lack of solidification defects and the constant scale of microstructure homogeneity.
Tensile Properties The tensile properties of all investigated alloys are listed in Table 2.
Tensile properties of model Al-Si alloys.
Summary - Microstructural Factors in Fatigue Model Al-Si Alloys.
Online since: June 2021
Authors: Ye Qin Zhang, Li Chun Qi, Yi Sheng Huang
Anticorrosion property of TC27 Titanium Alloys and Application Evaluation in Tubing
Yeqin Zhanga*, Lichun Qi and Yisheng Huang
AECC Beijing Institute of Aeronautical Materials, Beijing 100095, China
ayeqinzhang@hotmail.com, qilichunbiam@hotmail.com, huangee1013@hotmail.com
Keywords: Titanium alloy; tubing; corrosion test; erosion
Abstract.
Therefore, corrosion has become a key factor affecting the reliability and service life of tubing, and is the most important cause of tubing accidents [2].
Therefore, corrosion has become a key factor affecting the reliability and service life of tubing and is the most important cause of tubing accidents.
As an important metal material, titanium alloy has excellent physical and chemical properties and corrosion resistance.
The specimens was prepared by mechanical processing method, and the surface roughness was in accordance with GB/T 1031, the maximum allowable value of Ra is 3.2 μm.
Therefore, corrosion has become a key factor affecting the reliability and service life of tubing, and is the most important cause of tubing accidents [2].
Therefore, corrosion has become a key factor affecting the reliability and service life of tubing and is the most important cause of tubing accidents.
As an important metal material, titanium alloy has excellent physical and chemical properties and corrosion resistance.
The specimens was prepared by mechanical processing method, and the surface roughness was in accordance with GB/T 1031, the maximum allowable value of Ra is 3.2 μm.
Online since: May 2016
Authors: Xiao Lin Guan, Hong Ting Fan, Dong Hai Zhang, Yang Zhang, Tian Ming Jia, Shou Jun Lai
CdSe@PMMA nanocomposite film possesses excellent transparency and ultraviolet (UV)-shielding properties.
It is important that nanocrystals retain their original optical properties after grafted with polymer.
Thus, we studied the optical properties of our covalently binding CdSe@PMMA nanocomposite.
Guo, Bioinspired Nacre-like Heparin/Layered Double Hydroxide Film with Superior Mechanical, Fire-Shielding, and UV-Blocking Properties, Ind.
Misra, Grafting: A versatile means to modify polymers-Techniques, factors and applications, Prog.
It is important that nanocrystals retain their original optical properties after grafted with polymer.
Thus, we studied the optical properties of our covalently binding CdSe@PMMA nanocomposite.
Guo, Bioinspired Nacre-like Heparin/Layered Double Hydroxide Film with Superior Mechanical, Fire-Shielding, and UV-Blocking Properties, Ind.
Misra, Grafting: A versatile means to modify polymers-Techniques, factors and applications, Prog.
Online since: July 2017
Authors: Thomas Guglhoer, Simon Haug, Christina Kunzmann, Michael Schulz, Tanja Schneck, Johanna Spoerl, Michael R. Buchmeiser, Wolfgang M. Mueller, Siegfried R. Horn, Bastian Brück
The surface roughness caused by these structures plays a decisive role in interfacial properties.
Moreover, the surface roughness of the carbon fiber has a major influence on the interfacial strength and thus on the mechanical performance of the composite and its failure behavior: A high surface roughness improves mechanical interlocking and contributes to the effective surface area for chemical bonding, both of which are important factors concerning the interfacial strength [3].
Carbon fibers are sized by polymer dilutions to improve interfacial properties and to protect the fiber surface during further processing.
As described in [14], a single surface profile line does not reflect surface properties in a reliable way.
Simitzis, Surface properties of PAN-based carbon fibers tuned by anodic oxidation in different alkaline electrolyte systems, Applied Surface Science 143 (1999) 45–55
Moreover, the surface roughness of the carbon fiber has a major influence on the interfacial strength and thus on the mechanical performance of the composite and its failure behavior: A high surface roughness improves mechanical interlocking and contributes to the effective surface area for chemical bonding, both of which are important factors concerning the interfacial strength [3].
Carbon fibers are sized by polymer dilutions to improve interfacial properties and to protect the fiber surface during further processing.
As described in [14], a single surface profile line does not reflect surface properties in a reliable way.
Simitzis, Surface properties of PAN-based carbon fibers tuned by anodic oxidation in different alkaline electrolyte systems, Applied Surface Science 143 (1999) 45–55