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Online since: September 2020
Authors: Valeria V. Strokova, Evgeniy A. Shoshin, Alexandr Strakhov, Denis Timokhin
The effect of the various dimensional scales particles on the technological properties of the cement system is determined.
According to [15], among the main factors determining the plasticizing ability of mineral dispersions are the morphology of the dispersion particles, their absorption activity, specific surface area, and the difference in the true densities of the additive and cement.
Rheological properties of the “Cement – SCD” system mixtures Summary (1) The bimodal nature of the calcium silicates dispersions determines the features of their influence on the cement systems’ technological properties.
Batis, An analysis of the properties of Portland limestone cements and concrete Cem., Concr.
Lanez, Mohamed Nadjib, Influence of cementitious additions on rheological and mechanical properties of reactive powder concretes, Physics Procedia. 2 (2009) 1255–1261
Online since: August 2014
Authors: He Ran Wang, Hai Tao Liu, Ying Chun Liang
Introduction With the continuous development of high-power laser technology, in order to obtain a higher peak power and beam quality, the diameter-thickness-ratio of optics in ICF systems is gradually increasing, resulting in the sensitivity of surface figure and stress state of optics to external factors, which directly affect the laser beam quality and the frequency conversion efficiency [1].
Auerbach et al. [3] built a mathematical model between KDP crystal optical performance and mechanical performance, then analyzed and calculated the impact of mount structure on the optical properties of crystal.
Properties of materials required herein including frame material 2Cr13 are shown in Table 1.
Table 1 Properties of materials required Material Entity Young’s modulus[GPa] Poisson’s ratio Density [kg/m3] 2Cr13 Frame 228 0.30 7750 KDP Crystal - - 2340 Contact Analysis Calculation Setting.
Effects on Mechanical Performance.
Online since: November 2012
Authors: Q. Zhang, R. Wright, P. Kirby, A. Kosmala
Improvement of electrical and mechanical properties of inkjet-printed Ag tracks by adding SiO2 to high loading Ag inks A.
SiO2 particles have been shown to enhance the interfacial properties of the particle dispersion [9].
Since the deposited films may be exposed to thermal or structural loads, the mechanical properties of the film play critical roles in stress induction.
The results indicate that the presence of SiO2 affects the mechanical and electrical properties of the Ag films.
Ghatpande, Effect of inorganic binders on the properties of silver thick films, J.
Online since: December 2013
Authors: Teng Fei Fu, Hong Jun Yu, Yong Gang Jia, Xing Yong Xu, Sheng Li Lian
In the Yellow river delta, the most 3 important environmental factors that influenced the saline soil are: the groundwater level, mineralization of ground water and vegetation coverage [5].
Many researchers’ study showed that the water level is one of the important factors influencing the inshore saline soil salinity [6-8].
It is composed of silt, clay and a little fine sand, the basic properties of soil are shown in Table 1.
Table 1 Basic physical properties of the tested soil pH EC(25℃) (ms.cm-1) Total salt (g.kg-1) Mechanical properties(%) 0.25~ 0.5 mm 0.25~ 0.075 mm 0.075~ 0.05 mm 0.05~ 0.01 mm 0.01~ 0.005 mm <0.005 mm 7.266 3.756 12.41 0 7.1 53.9 21.1 2.6 15.3 Monitoring device: The device used in the paper was based on four-electrode measuring method.
Soil properties influencing apparent electrical conductivity: a review [J].
Online since: February 2021
Authors: Sergei D. Igoshin, Anatoly A. Popovich, Dmitriy V. Masaylo, Alexey V. Orlov
Unchangeable hardness of the substrate material may indicate that the effect of short heating up to 400 ˚ C and plus heating from laser heat during the cladding has not affected the basic mechanical properties of the substrate material after heating.
It is assumed that both these factors influence the development and formation of cracks simultaneously.
Gao, Study on microstructure, mechanical properties and machinability of efficiently additive manufactured AISI 316L stainless steel by high-power direct laser deposition, J.
Bojar, The microstructure, mechanical properties and corrosion resistance of 316L stainless steel fabricated using laser engineered net shaping, Mater.
Long, Mechanical properties of 304 austenite stainless steel manufactured by laser metal deposition, Mater.
Online since: July 2006
Authors: Beong Bok Hwang, H.J. Choi, H.S. Koo, G.M. Lee
Design factors such as mandrel diameter, punch nose radius, deflection corner radius, gap width in annular direction, and frictional conditions are applied to the present study by simulation.
The influence of these design factors on the force requirement during the forming operation and the pressure exerted on the tooling such as the punch and mandrel is investigated and the simulation results are quantitatively summarized in terms of pressure distribution, force-stroke relationships, and maximum force requirement, respectively.
Thus, other design factors except the gap height are adapted as design parameters in this study.
Paul DeGarmo: Material Properties and Manufacturing Processes (Malloy Inc., Michigan, 1966)
Datsko: Material Properties and Manufacturing Processes (Malloy Inc., Michigan, 1966)
Online since: January 2013
Authors: Arinta Difandra, Alia Badra Pitaloka, Asep Handaya Saputra
As a consequence, the the mechanical properties of water hyacinth fiber reinforced composites will be increased.
Physical Properties of Water Hyacinth.
Mechanical Properties of Water Hyacinth.
At temperatures below 110 oC, the water content in the water hyacinth has not evaporated and affects the mechanical properties of the water hyacinth which can decrease tensile strength.
Gonzales, A study of the mechanical properties of short natural-fiber reinforced composites, Composites 36 (2005) 597-608
Online since: February 2013
Authors: Arash Rashidi, Amir Mostafapour, Salar Salahi, Vahid Rezazadeh
FSP has been successfully applied to various aluminum alloys in order to improve their mechanical properties [4, 5].
In FSW and FSP, the critical process parameters, that could affect the weld quality and mechanical properties, are rotational speed, feed rate, tilt angle, plunge depth and tool design.
For investigating the channel properties a 9Mpix digital camera was utilized.
Comparison of fabricated channel properties between FSC and MFSC.
Giles TL, Zhilyaev AP, Srinivasan Swaminathan, Mahoney, The effect of friction stir processing on the microstructure and mechanical properties of an aluminum lithium alloy.
Online since: November 2011
Authors: Lu Lu Zhang, Xuan Wang, Lu Nie
From 1950 to 2010, there are 187 floods, 720.4565 million people was affected.
Facing the disaster, countryside always result in more loss in life and property as less complete of transportation, sanitation and safety facilities as well as limitation of education level and the sense of self-protection.
Analysis on the Affected People of the Kit.
In the physiological aspect, the factors needed to consider mainly include user groups’ age, sex, weight, fitness and physical barriers etc. which are not only related to each other, but also have relationship with psychological factors and personal background and even suggest more detailed specific differences.
Its outer diameter should be determined by buoyancy which was computed based on following factors: when a person in the water, about two-thirds of the body are submerged, so a half of the kit, as well as internal protective goods is considered to be submerged when using to ensure it is absolute safety.
Online since: September 2015
Authors: Mohan Kumar Pradhan, Ajay Verma, Gurjeet Singh
Then, the product will be used for testing on the effective factors in warpage problem by applying the experimental design of Taguchi method.From the results, it shows that the most effective factor on the warpage is melt temperature.
The Taguchi method is used to perform screening experiments to identify the important significant process parameters affecting quality of lenses.Through empirical and theoretical analysis, the most significant process parameters affecting surfacewaviness is the melt temperature, followed by mold temperature, injection pressure and packing pressure.
The optimal PIM process parameters is determined with the application of computer aided engineering integrating with the Taguchi method to improve the compressive property of the valve body.
In the analysis they consider 4 factor and 3 level and apply taguchi method for find out optimum setting of process parameters.
Fig 3.5 SN ratio response diagram of the six factors From the graph we see that packing pressure and cooling time most affect the post moulding shrinkage.
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