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Online since: September 2016
Authors: Sergey P. Zhuravkov, Mikhail B. Khaskelberg, Dmitrii V. Martemianov, Pavel E. Slyadnikov, Luiza V. Nadeina
Sample, mm Zeta potential, mV Specific surface,m2/g Specificporevolume,cm3/g less than 0.1 -10.2 13.5 0.006 0.5-1 12.1 0.006 1.5-2.5 10.5 0.005 Data presented in Table 1 indicate that the hematite-based sorbent sample with 1.5-2.5 mm particle size possesses minimum specific surface and specific pore volume as compared with two other samples.
The first endo effect, characterizing considerable mass reduction of sample, was identified in the interval of temperatures from 50 to 2000С.It is likely to be connected with the removal of physically-combined water from the sample in the temperature interval (50-150°С), and at temperatures above 150 0С it is connected with the removal of chemically-combined water.
If time of contact solution with sorbent increases, gradual reduction of solution purification efficiency from Fe3+ions is observed.
Online since: September 2017
Authors: Peter Olegovich Rusinov, Etibar Yusif O. Balaev, Zhesfina Blednova, Anna Pavlovna Yurkova, Maria Evgenievna Bezmogorychnaya
In the process of friction-cyclic loading there is an increase in temperature, according to our data – up to 160 - 180 °C, depending on the loading rate.
Firstly, in the contact area of friction micro-roughness, there is a contact significant increase of an actual contact area; this leads to reduction of stress concentration, and thus, to the probability of cracks.
Increase in wear-fatigue characteristics of the composition "Steel - a material with shape memory" is explained by pseudoelasticity of surface layers made of shape memory materials in the friction zone and the reduction of stress concentration by increasing the contact area at friction.
Online since: November 2023
Authors: Erhard Kaschnitz, Alejandro Lazaro Martinez, Gemma Castro Regal, Raul Sanchez Cruz, Clovis Alleaume, Camilo Prieto Rio, Thomas Pabel, Pilar Rey
A Photron Fastcam Mini AX200 with Navitar 12xZoomXtender optics was used for the data acquisition, allowing to capture video of up to 7000fps.
Although nanoparticles normally flow worse, the reduction of the time to flow can be related with the smooth morphology achieved after mixing due to the use of balls to increase the mixing.
As consequence of the ceramic addition, thermal conductivity is decreased promoting the enlargement of the tail (thermal conductivity of TiC is around 6 times lower [14,15] due to the reduction of cooling speed.
Online since: February 2016
Authors: Maxim Kutsev, Maria Ivanova, Maria Krasnoborodkina
For example, in Europe, according to 2007 data, 400,000 cases of infections caused by bacteria with multidrug resistance were registered, resulting in 25,000 deaths.
Penetrating inside, essential oils apparently destruct cytoplasmic membrane of microorganisms, which leads to reduction in their permeability and reduction in microorganism aerobic respiration activity [21].
Online since: September 2013
Authors: Ching I Lin, Shin Li Lu, Shih Hung Tai
They need a large amount of data to construct a proper forecasting model.
With the life cycle of products, however, data collected are limit.
Therefore, in order to obtain a highly accurate forecasting model with limit data, Deng [15] first presented the grey forecasting model from grey theory to overcome the problem facing a few data.
A non-parametetric learning algorithm for small manufacturing data sets.
An improved grey-based approach for early manufacturing data forecasting.
Online since: July 2006
Authors: Michael Josef Zehetbauer, Gennady A. Salishchev, Dmytro Kuzmenko, Agnieszka Daniszewska, Urszula Narkiewicz, Krzysztof Jan Kurzydlowski, Hans Jorg Fecht, Witold Łojkowski, Małgorzata Chmielecka, Mariusz Kulczyk
This report was a basis for providing data to the nanomaterials data base and roadmaps that were the final result of the project.
The collected data was analysed from both the statistical and possible applications consideration.
Wong, "Self Assembled Nanoparticulates Co:Pt for Data Storage Application", IEEE Trans.
The results of the present study provided the necessary data for the data base, which can be found under the web addresses; http://www.nanoroad.net/.
Fig. 20 shows the technology roadmap generated by the data base.
Online since: July 2007
Authors: Antonio Squillace, G. Giorleo, Livan Fratini, Fabrizio Micari
Numerous data are reported in literature about FSW of butt joints, very few data, to authors' knowledge, exists on T joints.
The presence of the tunnel is evident on right side (advancing): its occurrence avoids a complete metallurgical continuity of joint resulting in a dramatic reduction of resisting area and in a drop of mechanical properties, here appreciated mainly in terms of a reduced stiffness.
Online since: August 2011
Authors: Kuan Hui Hu, Shun Bing Zhou, De Xin Tian, Guan Wen Feng
Introduction Since the 70s of the 20th century,the world auto industry has recognized the urgency to weight reduction and energy saving, the development and application of a new generation of high-strength steel has been valued.Especially the steel with super deep-drawing and high-strength steel become a hot spots of development and researchment [1].
Another data shows that [3], α fiber texture (<110> ∥ RD) of cold-rolled steel sheet will evolve with annealing temperature rising during recrystallizating process, and the γ fiber texture (<111> ∥ ND) pie grain annealed microstructure are formed by rotating crystal grain and crystal boundary migration.
Online since: July 2011
Authors: You Liang Ma, Li Xuan Zheng
The guide lines to evaluating the mechanical properties of the materials include yield strength, tensile strength, elongation rate and reduction of area, and so on.
After analyzing SEM data and EDX images of the test specimen with non-vacuum annealing and vacuum annealing, in figure 2, 3, it shows that the oxygen content of the Ni47Ti44Nb9 has increased due to the non-vacuum annealing, which results in a large number of oxygen-containing in matrix phase.
Online since: July 2011
Authors: Li Jia Chen, Feng Li, Sheng Guo, Xin Che
Even though the superplasticity of the ECAPed magnesium alloys has been well documented, there is very limited data to concern the superplasticity of the AZ91 alloy ECAPed by different routes.
Experimental Procedures The AZ91 alloy was extruded to the rod with a reduction ratio of 17:1, and then cut to pieces with a length of 80 mm and a diameter of 10 mm.
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