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Online since: January 2009
Authors: P.M. Pasinetti, F. Romá, J.L. Riccardo, A.J. Ramirez-Pastor
In this context, the present paper is concerned with accurate lowtemperature calculations of adsorption properties [56,57] and critical behavior [58] in systems with predominantly repulsive interactions.
On the other hand, the lowest temperature Tm is set in the lowtemperature phase whose properties we are interested in.
With this lattice size we verified that finite-size effects, which affect the thermodynamical properties in the case of repulsive interactions at much smaller sizes, are negligible
transitions analyzed here in order to calculate their critical temperatures, since the analysis rely on order parameter cumulant's properties * .
Summary In the present work, we have addressed the critical properties of a simple lattice-gas model, which mimics a nanoporous environment, where each channel or unit cell is represented by a onedimensional array.
Online since: May 2011
Authors: Long Chen Duan, Hao Shi, Song Cheng Tan, Song E Tan
While in this paper, the vertical feeding rate is thought to be a very important factor to cumulated curve of chips, critical rotational speed, and especially to the determination of actual rotational speed and the vertical drilling rate in practice.
In case that chips only affected by rotation, motion vector V1 is the combination of Vc and V, which causes an angle β1 with the horizontal plane.
The centroid of chips is not only related to drilling parameters but also related to its physical and mechanical properties.
Online since: August 2006
Authors: Takeshi Izumi, Yoshimitsu Shibata, Takumi Nishimoto, Toshio Narita, Kemas Zaini Thosin, Shigenari Hayashi
The oxidation properties of the coated alloys were investigated at temperatures between 1173 and 1573K in air for up to 1,000 hrs (10,000 hrs for the up-hill diffusion coating).
Moreover, the inward diffusion of Al to the alloy substrate and outward diffusion of alloying elements in the substrate could lead to decreases in the mechanical properties of the alloy substrate.
These coatings and oxidation properties of the coated alloys will be introduced, and their formation mechanisms will be discussed.
Further, there are factors other than the low diffusivity that affect useful lifetimes, and these will be discussed below.
To elucidate degradation process of the barrier layer and to understand factors which control the stability of the barrier layer, an investigation is now under progress in our laboratory.
Online since: July 2014
Authors: B.P. Chandra, V.K. Chandra, Piyush Jha
Table 2 shows the comparison between the properties of inorganic and organic semiconductors.
Thus, all these factors make organic semiconductors the perfect breeding ground for space-charge transport.
Misra, Electro-optical properties of doped anthracene films, Solid State Commun. 39 (1981) 89 -91
Scherf, "Organic Light-Emitting Devices: Synthesis, Properties and Applications" (WILEY-VCH, Singapore, 2006)
Kam, Luminescent properties of rare-earth ion doped yttrium silicate thin film phosphors for a full-colour display, J.
Online since: February 2003
Authors: Tarik Omer Ogurtani, Mehmet R. Güngör, Ersin Emre Ören
Here, So el is pre-logarithmic factor of the elastic part of the dislocation line tension.
These last factors are defined explicitly in Ref. 23 and Ref. 26 for octahedral as well as tetrahedral defects utilizing various kink configurations on screw and nonscrew dislocations in bcc metals with different degrees of elastic anisotropy.
By utilizing the properties of Dirac delta function, one can easily show that the following connections are valid; ouu c u aBB /�= , and kodd c d NaLBB /�= .
Where, So el is prelogarithmic factor of the elastic part of the dislocation line tension.
The behavior of the anomalous internal friction is affected by the previous excitation strain amplitude.
Online since: January 2016
Authors: Walter Lengauer, Igor Konyashin
The near-surface microstructures which form upon diffusion often show a graded characteristic in which the properties do not change suddenly like in coatings but smoothly.
All the model alloys were first sintered at 1370°C for 30 min (15 min vacuum + 15 min HIP) to examine their microstructure and magnetic properties.
By interruption of sintering cycles the magnetic properties at each sintering stage are accessible, too, see Fig. 66.
They are characterized by a unique combination of various properties, which cannot be achieved in bulk cemented carbides.
Aakerman, Structure and properties of dual carbide for rock drilling.
Online since: June 2010
Authors: Cecilia Surace, Manuela Battipede, Keith Worden, W.E. Becker
A maximin LHD improves on this by additionally maximising the minimum distance between input points, thus optimising the space-filling properties of the design.
However, the uncertainty involved in modelling a heart valve is substantial material properties and loading can only be specified to within fairly wide ranges.
Furthermore, the complicated nature of the material properties is an additional source of epistemic uncertainty - .
However, it was found in [23], that the material properties of the composite varied significantly with changes in temperature.
[23] Defense, U.S.D.o., Polymer Matrix Composites Material Properties, in Composite Materials Handbook. (2002)
Online since: June 2012
Authors: Li Bo Wang, Ai Guo Zhou, Fei Xiang Hu, Liang Li
Introduction Titanium silicon carbide (Ti3SiC2) combines the properties of metals and ceramics [1, 2].
Like other ceramic materials, it possesses good high temperature mechanical properties and oxidation resistance [4].
El-Raghy, et al, Tensile properties of Ti3SiC2 in the 25-1300°C temperature range, Acta Mater. 48 (2000) 453-459
Zhai, Synthesis and reaction mechanism of Ti3SiC2 by mechanical alloying of elemental Ti, Si, and C powders, J.
Online since: June 2022
Authors: Silviana Silviana, Amar Ma'ruf, Febio Dalanta
The resulting silica still contained metal impurities and their presents affected the properties and quality of processed silica [4].
The electrochemical properties of the battery were checked in a glove box containing argon (Ar).
Santos, Characterization and properties of blended cement matrices containing activated bamboo leaf wastes, Cement and Concrete Composites. 34 (2012) 1019–1023
Mamat, A critical assessment and new research directions of rice husk silica processing methods and properties, Maejo Int.
Fray, Black silicon: Fabrication methods, properties and solar energy applications, Energy and Environmental Science. 7 (2014) 3223–3263
Online since: September 2010
Authors: Traian V. Chirila, Andrew K. Whittaker, Lynette Lambert, Imelda Keen, Stefan M. Paterson
For instance, the nature and extent of crosslinking in hydrogels may have a significant effect on their swelling capacity, mechanical properties and ability to degrade, which are all features of importance in various applications.
Due to their large range of properties and to the possibilities to manipulate them, the hydrogels have a prominent position as biomaterials.
Based on extensive studies on the excretion of uncrosslinked poly(1-vinyl-2-pyrrolidinone) (PVP), comprehensively reviewed by Robinson et al. [45], it appears that for a synthetic polymer with a C−C backbone administered to the body by injection or implantation, MW is a governing factor in its clearance by renal excretion.
We believe that solubility in water of the residual polymer fragments remaining after the cleavage of the crosslinks is a factor that may facilitate their elimination through renal pathways.
Similar kinetic curve profiles obtained by FT-NIR spectroscopy for the polymerization of HEMA with and without PEGDMA suggested that the addition of a small amount of the crosslinking agent has not affected the rate of RAFT polymerization of HEMA.
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