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Online since: August 2013
Authors: Pornsri Pakeyangkoon, Manit Nithitanakul, Monreudee Dejsukdipol
The mechanical properties and decomposition temperatures (Td) increased with increasing filler content from 0 to 10 wt%.
A lot of effort was invested to determine the factors which affect the cellular structure and cell size of the resulting porous polymers and in 1997, Cameron and co-worker [4] have described the production of polyHIPE materials with high internal surface areas, employing methodologies similar to those used in porous polymer bead preparation.
Thermal behavior and mechanical properties of poly(DVB)polyHIPE foam filled with different amount of M-PSO (wt%).
Mechanical properties of poly(DVB)polyHIPEs, prepared from different amount of M-PSO content, were carried out.
The chemical composition, the structure of the M-PSO influenced the mechanical and thermal properties of the poly(DVB)polyHIPE foam.
Online since: December 2013
Authors: Xue Dong Zhang, Yu Jing Hou, Ren Peng, Qing Lei Sun
The physical properties of the waste were compared with the real municipal solid waste (MSW).
For example, Jessberger et al. assessed the mechanical properties of waste materials in centrifuge using real MSW [2].
Physical Properties of Model Waste An ideal model waste should match the physical, chemical, and dynamic properties exhibited by the real MSW.
The main physical properties of MSW considered here are unit weight, void ratio, compression factor, shear strength and permeability coefficient.
The shear strength of municipal solid waste depends on many factors, such as its constituents, the mode of placement, and the age.
Online since: December 2012
Authors: Zheng Li, Hong Wu Zhu, Xiang Ling Kong, Xiao Li Fan, Jian Sheng Hao
The relationship between average pressure gradient on pipe and some influence factors (pipe axial velocity, rotating angular velocity, drilling fluid circulation velocity, and axial coordination) was analyzed.
Results showed that average pressure gradient caused by shear stress was only affected by average annular flow velocity, and it didn’t change along pipe length.
From equation (4) and (5), it was noticed that pressure gradient in this model was only related to fluid property and velocity.
But this formula only worked for the model in this paper, the constants in the formula should change when it would be used in other models with different fluid properties or different casing and wellbore with different dimensions.
Determining the Fanning friction factors of power-law drilling fluid flow in pipe and annular, Drilling Fluid & Completion Fluid, 1999(05):4-6
Online since: April 2014
Authors: Valentin Yakovlevich Mitrofanov, Vladimir Borisovich Vykhodets, Robert Grigorievich Zakharov, Tatiana Eugenievna Kurennykh, Anatoly Yakovlevich Fishman, Eduard Andreevich Pastukhov, Sofya Aleksandrovna Petrova, Sergei Aleksandrovich Uporov
Magnetic properties of the treated oxides were measured in the temperature range of 4-300К.
Mechano-activation of the oxide materials affects their structural modification, the concentration of defects, charge and orbital state of the cations, diffusion, electrical and magnetic properties.
Magnetic properties of mechanoactivated manganese oxides.
Effect of Crystal Size Reduction on Lattice Symmetry and Cooperative Properties.
Structural Properties of Mechanoactivated Mn2O3.
Online since: February 2011
Authors: Shan Jun Zheng, Hong Lin Zhao, Dian Xin Li, Xian Long Liu, Shi Min Zhang, Dai Geng
It is difficult to optimize the slips because of complicated structure and many geometric parameters affecting the mechanical property of the slips.
There are many parameters effecting the mechanical property of the slip while doing optimization design.
In order to simplify the problem, we give preference to those factors effecting the mechanical property notably.
There are four factors in the design and each factor contains four levels.
The distribution of factors and levels are shown in table 1.
Online since: September 2016
Authors: Peter E.J. Flewitt, Ana Isabel Martinez-Ubeda, Alexander D. Warren, Ian Griffiths
The heat affected zone of weldments, in these thick section headers and thin walled boiler tubes, have been found to be susceptible to creep damage leading to cracking during service.
Introduction Austenitic stainless steels are used in electrical power generating plant for a range of components because they have good corrosion resistance and high temperature mechanical properties.
Various interactive factors contribute to both creep deformation and creep fracture and these have to be taken into account when evaluating service life.
However, one important factor is the initial microstructure of the fabricated component that enters service.
Creep deformation and fracture are controlled by a series of interacting factors, which need to be considered to evaluate service life [1].
Online since: January 2026
Authors: Jassim Mohammed Salman, Alaa Jasim Mohammed, Ferdius Mohamat Yusuff
Analysis of Variance (ANOVA) was used to determine the most significant factors affecting Ni removal.
Often cultivated in rice paddies as a living biofertilizer, it has been recognized for its multifunctional properties, including carbon sequestration, nitrogen fixation, biofuel potential, and water purification.
The experimental sequence was randomized to minimize the effects of the uncontrolled factors.
The final empirical model in terms of coded factors (parameters) after excluding the significant terms for Ni removal (Y) are given in below Eq. 4.
Investigations on magnetic and electrical properties of Zn doped Fe2O3 nanoparticles and their correlation with local electronic structures, J.
Online since: January 2006
Authors: S.C. Lin, C.T. Pan, Ruey Fang Shyu
Finally, the optical properties such as focal length of developed micro-lens will be measured and tested.
To discuss above described parameters that will affect the micro-lens forming mechanism.
The reason to select PMMA as micro-lens material is that the material is very suitable for optical devices because of physical properties, optical properties and ability for IR coating.
AZ4620 will show colloid property when the temperature above Tg.
The reflow process affects the photoresist column shape, thus we discuss the reflowed diameter under various heating temperature and reflow period .In this study, the micro-lens array with high fill-factor have been fabricated, it can improve the brightness and diffuseness.
Online since: September 2013
Authors: Zhi Yong Yang, Jun Hu, Zeng Chan Lu, Song Zhao
This article mainly study on the law of the influential factors of the different heat-treated FGD gypsum on the performance of slag cement to determine the manner and feasibility of resource utilization in cement-based materials[7,8].
Conclusion (1)The heat treatment conditions and dosage are important factors of the setting time and strength of the FGD gypsum.
(2)In the case of adding the same amount of the FGD gypsum, the heat treatment process is an important factor to affect the setting time of cement.
Influence of FGD Gypsum on the Properties of Portland Cement.
Coalash, 2011, 4: 24-26 [5] Pavel Tesarek. flue gas desulfurization gypsum: Study of basic mechanical, hydric and thermal properties [J].
Online since: October 2022
Authors: S. Sivaganesan, S. Muzeer
Hybrid Aluminium Metal Matrix Composites are achieved the potential mechanical properties compared to single reinforced composite materials.
The lifespan of the materials is affected by a wide range of factors, and the composition used has a significant impact on the quality of life.
AA6061 chemical composition and mechanical properties are mentioned in Table 1&2.
The other two factors sliding distance and velocity provide less volume loss compared to load factor.
The addition of Sic and ZrO2 reinforcements are improved the mechanical and wear properties of hybrid composites.
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