Materials Literature
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Abstract Hardenability refers to the ability of steel to obtain satisfactory hardening to some desired depth when cooled under prescribed conditions. It is governed almost entirely by the chemical composition (carbon and alloy content) at the austenitizing temperature and the austenite grain size at the moment of quen…
Extended abstract of a paper presented at Microscopy and Microanalysis 2013 in Indianapolis, Indiana, USA, August 4 – August 8, 2013.
Nanolaminates play a significant role in the precision optical components, and protective barrier coatings. We present a new non-destructive method for characterization of nanolaminates in terms of thickness and refractive index based on Multi-Parametric Surface Plasmon Resonance (MP-SPR). In this paper, we briefly co…
In order to address the role of redox mediator mass transfer in microbial fuel cell (MFC), numerical simulation models are developed on the basis of Monod equation, Fick's second law, Ohm's law and Butler-Volmer equation in this study. In the models, microbial metabolizing kinetics, substrate diffusion, electrochemica…
This work reports the results concerning formation and tribological properties of SiC x N y (H) layers deposited on Ti Grade 2 and polyurethane foil. Depending on the substrate, two variants of PACVD were used. The SiC x N y (H) layers on titanium were deposited with application of MWCVD (2.45 GHz, 2 kW). The layers o…
This work consists in the optimization of the absolute photonic bandgap (PBG) in two dimensional crystalline structures composed of air and tellurium by using the evolutionary algorithm artificial immune system (AIS). In order to analyze its performance, the absolute PBG for the TM12and TE34modes of triangular lattice…
The nanomaterial have been widely used in the stadium, sports turf, track, sports apparel, sports equipment and sports supplements, but nanomaterials may have a negative impact on the cell, lung, liver, kidney and brain tissue, biological safety. So we should pay attention to and strengthen the biological study of nan…
Adsorption of Escherichia coli K 88 on natural and acid-modified clinoptilolite was studied under ambient conditions. The materials under study were characterized in terms of surface area and cation-exchange capacity (CEC). Our study results indicate that treatment with formic acid can increase the Brunauer–Emmett–Tel…
As one of the most promising technologies for future 3D IC integration, through silicon via (TSV) has gained wide attention. But its reliability issues are a great concern. This paper presents an analysis of the electric-thermo-mechanical reliability of TSV structures under high current stressing using finite element…
This paper describes the use of fuzzy logic to improve the performance of the proxy cache. A multi-agent system has been developed to control the cache cleanup process on both parent and child sides. Fuzzy logic is used to combine LFU and LRU caching replacement policies on the child cache. Size, LFU, and LRU policies…
This work proposes three different glass formula derived from the SiO2-Li2O-K2O-Al2O3 system to investigate the effect of glass compositions on their crystal formation and mechanical properties. Glass LD_1 was SiO2-Li2O-K2O-Al2O3 system with adding P2O5 and CaF2 as nucleating agents. In Glass LD_2, a few amount of MgO…
This paper deals with the sensitivity analysis of models for the high consistency refining process in the pulp and paper industry. Several models reported in literature are considered, which are screened for their potential use in the design of controllers for refiners or in the optimization of refiner operation. For…
In this paper an accurate modeling of permanent magnet synchronous motor that is suitable for high frequency differential mode calculation is proposed. The model takes into consideration the core losses and the two resonance responses that occurred during the experimental results. The model is suitable for calculation…
Optical fibers constituted by photonic quasi-crystals it is based on aperiodic structures characterized by at least two different symmetrical patterns. In this work an optical fiber constitute by quasi-periodic and symmetric matrix is analyzed using the finite element method in conjunction with cylindrical perfectly m…
We propose a generalization of the LDA + DMFT + Σ k approach to the multiband case, in which correlated and uncorrelated states are present in the model simultaneously. Using the multiband version of the LDA + DMFT + Σ k approach, we calculate the density of states and spectral functions for the Emery model in a wide…
This article describes our recent research on a selective protein detection system built on a graphene oxide (GO) surface.Our original idea is to fix pieces of GO on a solid support.This enables direct observation of chemical reactions occurring on the GO surface and on-chip device fabrication.The basic principle can…
Controlling the morphological structure of titanium dioxide (TiO2) is crucial for obtaining superior power conversion efficiency for dye-sensitized solar cells. Although the sol-gel-based process has been developed for this purpose, there has been limited success in resisting the aggregation of nanostructured TiO2, wh…
Extended abstract of a paper presented at Microscopy and Microanalysis 2013 in Indianapolis, Indiana, USA, August 4 – August 8, 2013.
Abstract The paper discusses the impact of drawing poly(ethylene terephthalate) (PET) fibers in the presence of solvents, which consist of the first five homologues of aliphatic primary alcohols, namely methanol to amyl alcohol. The solvent induced deformation under tensile load leads to surface fissures characterized…
A coesão de alguns horizontes de certos solos interfere diretamente no crescimento de plantas, provocando redução da profundidade efetiva, do volume de raízes e da emergência de plântulas, em decorrência da redução da disponibilidade de água e ar no solo. Neste estudo, objetivou-se caracterizar, por meio dos atributos…