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Online since: July 2015
Authors: Mohammad Faraz Ahmer, Salman Hameed
Comparison of properties of secondary batteries and electrochemical capacitors [11].
A novel multifunctional material has been designed to provide excellent mechanical properties while possessing a high electrochemical surface area suitable for electrochemical energy storage.
The results of a study on the leakage currents (Ipeak) and self-discharge energy loss factors (SDLF) of IL-based EDLCs at different cell voltages up to 3.2 V and at 30°C and 60°C have been reported [95].
The proper configurational arrangement of nitrogen atoms in graphene sheets results in the improvement of intrinsic electrical properties of N-RGO including capacitance and other kinetic properties.
On the other hand, in co-axial nanocomposite due to layered assembly, thickness of the layer played a significant role which affected the charge storage properties [129].
Online since: September 2016
Authors: Aleksey N. Shapovalov, R.R. Dema, S.P. Nefedyev
In the conditions of the existing production, the main factor determining the quality of the sinter charge preparation is the mode of humidification: the degree and stability of the moisture content of the sinter charge, water properties, the manner and place of feed, the use of additives, etc.
In addition to the effect on surface tension, other important properties that determine the possibility and conditions for the use of a binder are important for industrial use of surfactants in the process of agglomeration.
This can be observed in the results of pelletizing as well as in the indicators of sintering and mechanical properties of sinter.
In addition, the increase of gas permeability of the sintered layer and its resistance to vacuum provide thermal stabilization process level and sinter production with higher metallurgical properties [19-21].
The thermal stabilization of the agglomeration level provides a more complete and uniform processes of agglomeration on the volume of sintering, which has a positive effect on the strength properties of sinter (Table. 3).
Online since: December 2011
Authors: Shi Qiang Lu, Ke Lu Wang, Shi Biao Liu, Xian Juan Dong, Xin Li
In ring rolling process,every roller has to run coordinately, and because of the high nonlinear on geometry and physics under multi-factors coupling interactive effects, the ring rolling process become very complex, it is difficult to accurately analyze the process by analytical or experimental method[3,4].
The used temperature dependent thermal properties(heat conductivity, specific heat) of the alloy are shown in Table 2.
Huang and C.D. zhu: Theory and Technology of Ring Rolling [M](Mechanical Industry Publications, Beijing 2001), p.1.
Zhan: Mechanical Science and Technology, Vol. 24(2005), No.7, p.808.
Lan: Mechanical Engineering of China, Vol. 17(2006), No.9, p.953.
Online since: August 2013
Authors: Paola Nardinocchi, Young Su Cha, Matteo Pezzulla, Maurizio Porfiri
A voltage difference across the electrodes generates mechanical deformations (actuation) and a mechanical deformation yields a voltage difference (sensing) [5].
The analysis of the charge redistribution in the vicinity of the highly heterogeneous layers resulting from electrode deposition (whose conductive and dielectric properties differ from both the polymer and the metal salt) is an open research question [6, 21, 22, 23, 24].
The thickness of the composite was thus partitioned into three different layers: a metal layer (corresponding to the metal electrode), a highly heterogeneous layer just close to the top resulting from the electrode deposition (whose conductive and dielectric properties differ from both the polymer and the metal salt), and the pure polymer.
Hence, charge accumulation at the polymer-electrode interface is a key factor in the determination of strains during the bending.
Within the class of physics-based models, electrostatic stresses arise when nonlinear electro-mechanical coupling is considered.
Online since: March 2019
Authors: Harno Dwi Pranowo, Winarto Haryadi, Daratu E.K. Putri
The molecular and electronic molecule properties were obtained from DFT/BPV86 6-31G method calculation after was through methods validation.
To obtain pleasant predictions, the descriptors (properties) had been calculated using quantum-mechanical methods by Gaussian and hyperchem software.
The electronic and molecular properties were calculated with DFT BPV86/631G that had been through the methods validation process.
This instance is due to similar electronegativity properties or electropositivity properties that has a primary tendency in refusing each other that causes lifted energy.
The optimized 3-substituted 4-anilino coumarin derivatives by DFT/BPV86 method had performed information of electronic properties that are dipole moment (μ), and atomic charges (q) and molecular properties that are HOMO energy and LUMO energy.
Online since: November 2015
Authors: A. Ayeshamariam, J. Shanthi, M. Jayachandran, S. Rani, S. Thanka Rajan
Material properties of CdSe are in Table 1 and the crystal structure is shown in Fig. 1.
Z.Aneva et al [51] reported the electrical properties of thermally evaporated CdSe films.
Optical spectroscopy and electron observation showed that the films coated on glass substrate had very good mechanical quality and optical properties rather than the films on the carbon coated substrate.
Basheer et al [134] repotted materials properties of CdSe films and doping effect.
They found that fill factor and efficiency were maximum for 0.1 mol% indium photosensitive films.
Online since: August 2013
Authors: H. Chen, Y. Lu, H. Zhao, Y. Sun, P. Wang, J. Huang
Working with unexpect loading is one of major impact factor that causes several chain-effects happened to the cylinder, as the classical diagnostic process is lack of cross-validating and time-consuming, the paper proposes the potentials of using acoustic emission to fill the dilemmas.
Unexpected loading of the cylinder is considered as a major impact factor of disfunction of HAGC hydraulic screw down [8], which could caused cylinder faults such as leakages or seals broken, the current state identification process of insufficient loading is based on the reading and processing of the pressure signals, as the direct reading from the pressure monitor only able to provide the static display of the working pressure and the pressure signals are sensitive to fluctuations and noises [10], to some extent it provides helpless suggestions to the engineers in terms of disfunction spotting, a wavelet energy [11] based approach was derived to extract significant features from the pressure signals acquired from the field and acted as the inputs to BP neural network [12] with the unexpected loading caused by the inner leakage being correctly identified [10], however, with wavelet energy and neural network approach employed to deal with the noise issue, large computational burden could
Also with the symmetric visualization purpose, the intervals are set to the same value in each quadrant in this study, the robustness of feature granularities were discussed by [17] in the proceeding publication, which proofs the value interval affects little in the hits density model.
This scenario can be linked to the actual specification of the cylinder under examination, as the maximum working load of the cylinder is designed to 25MPa, the aforementioned scenario could be understood as some underlying mechanical disfunctions of the cylinder that causes by the overloading, which may further brings failure to the cylinder during rolling process.
It could be related to the properties of PCA as well as the previous findings provided by the authors, where the projection of hits density patterns with significant differences would be distributed at two sides of origin [17, 20-21].
Online since: March 2007
Authors: Wei Guo Wang
Grain Boundary Engineering: progress and Challenges Weiguo Wang 1, a 1 Department of metallic materials, School of mechanical engineering, Shandong university of technology, Zibo 255049, PR China a email:wang.wei.guo@163.com, Keywords: Grain boundary engineering; Grain boundary character distribution; CSL boundary; .
From 1960s to 1980s, bi-crystal technique was used to study and ascertain the special properties of low ∑-CSL boundaries in a variety of polycrystalline materials.
The results demonstrate in general that low ∑ (∑≤29) CSL boundaries do exhibit some special properties of lower energy, weaker solute-atom segregation, slower diffusion rate , higher mobility, higher resistance to high temperature GB sliding and facture , less GB hardening and lower resistance to electrical conductivity.
This is because the so-called special boundaries exhibit special properties conditionally, and alloying and field conditions are the key factors.
So exactly speaking, GBE is not only to obtain a high fraction of special boundaries to optimized the GBCD, but also to make sure whether the special boundaries exhibit special property of low energy, because only low energy can renders some other special properties such as mentioned in the foregoing text.
Online since: October 2011
Authors: Simon Kringas
In the end, density is just a number, and urban design requires the configuration and integration of multiple and complex factors, such as program, circulation, morphology and public space.
Founded on a two-dimensional planimetric logic and constrained by paradigms of Euclidean geometry, property law, and load-bearing construction, high-rise morphology is generated by a vertical extrusion from the ground toward the sky.
Urban morphology also affects microclimate.
Instead it relates to qualitative properties of convergence, connectedness and continuity [25].
Lozano: Densities in Communities, or the Most Important Factor in building Urbanity in The Urban Design Reader, edited by M.
Online since: May 2019
Authors: Malcolm D. Ingram, Klaus Funke, Radha D. Banhatti
Remarkably, these ion-transport related properties of the melt are also linked to the effects of pressure on the glass transition temperature [19-21].
However, static equilibrium properties are considered in those cases, while time-dependent processes play an essential rôle in molten CKN.
Kubo, Statistical-mechanical theory of irreversible processes.
Monaco, Is the fragility of a liquid embedded in the properties of its glass?
Aronsson, Brillouin scattering study of elastic properties in a glass forming KNO3–Ca (NO3)2 mixture, J.
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