Morphological Characterization of Bacteria Using the Atmospheric Scanning Electron Microscope (ASEM)
Extended abstract of a paper presented at Microscopy and Microanalysis 2010 in Portland, Oregon, USA, August 1 – August 5, 2010.
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Photoluminescence and Long-phosphorescent Characteristics of SrAl2O4:Eu2+,Dy3+ Phosphor by Glycine-nitrate Combustion Method
A <TEX>$SrAl_2O_4:Eu^{2+},Dy^{3+}$</TEX> phosphor powder with stuffed tridymite structure was synthesized by glycine-nitrate combustion method. The luminescence, formation process and microstructure of the phosphor powder were investigated by means of X-ray diffraction (XRD), scanning electron microscopy (SEM) and pho…
Nanoporous structures from anodisation of non-planar aluminium surfaces
We report about a novel combination of two etching techniques for generating nanostructures, which individually are well established: (i) metal tip etching in NaOH, as e.g. used for STM or atom probe tip making, and (ii) anodic oxidation of aluminium for the generation of self-organised ordered pores. The non-planar g…
Electron Energy Loss Spectroscopy Study of Li in Lithiated FeOF/C Nanocomposite Battery Materials
Extended abstract of a paper presented at Microscopy and Microanalysis 2010 in Portland, Oregon, USA, August 1 – August 5, 2010.
Resonant domain photorefractive structure in the liquid crystal-photoconducting orienting layer system
Photorefractive properties of nematic liquid-crystal cells with photoconductive orienting layers are investigated. A new mechanism is proposed based on the resonant interaction of transition and quasi-stationary domain structures with the optical interference field. A two-order-of-magnitude increase in the diffraction…
Improvements of natural rubber for flame resistance
The present invention provides a process for treating natural rubber to increase its flame retardant capability. Theprocess comprises a mixture of a natural rubber with, (a) halogenated free flame retardant agent (zinc hydroxystannate;STORFLAM ZHS) and (b) halogenated flame retardant agent (decabromodiphenyl; Great La…
Time-scale analysis of the applied voltage waveform in uniform pollution conditions as a new monitoring technique of the insulator flashover
In this report, we have examined the impact of pollution severity on the dielectric performance of an insulating plane model which reproduces the 1512 L outdoor insulator. This insulator is largely used by the Algerian company of Gas and Electric power (SONELGAZ). These investigations were carried out using different…
Investigation of charge trapping in thin Kapton<sup>®</sup> polyimide films by means of photo-stimulated discharge spectroscopy
Photo-stimulated discharge-current spectroscopy was performed on 50 μm Kapton® 200HN polyimide thermo- and photoelectrets formed in the temperature range between -40°C and +130°C. Films were either charged in the DC electric field of 20 MV/m or photo-charged by illumination with light at the wavelength of 420 nm under…
Correlative Light and Electron Microscopy (CLEM) for Characterization of Lithium Ion Battery Materials
Extended abstract of a paper presented at Microscopy and Microanalysis 2010 in Portland, Oregon, USA, August 1 – August 5, 2010.
Three-dimensional Monte Carlo simulations of the dynamics of macromolecular particles in solutions flowing in mesopores
Abstract Numerical simulations are developed to calculate the dynamic equilibrium probability distribution functions (PDF) for macromolecular rod-like particles suspended in a fluid under hydrodynamic flow inside mesopores. The simulations take into account the effects of Brownian and hydrodynamic forces acting on the…
Analysis of Oxygen Vacancy Trapping at [001] Symmetric Tilt Grain Boundaries in Barium Titanate by Atomistic Simulations
The role of grain boundaries (GBs) in the diffusion of oxygen vacancies (VO••s) in barium titanate (BaTiO3) and its mechanism were investigated using atomistic simulation techniques. It was found that GBs trapped VO••s at specific sites in the course of the diffusion, and the excess energy reflecting structural distor…
Detection of nano-particles by dynamic dislocation-defect analysis
Dynamic dislocation-defect analysis is derived from precise determination of the activation volume ν and distance d . Upon precipitation of nano-particles of Al 6 Fe in nominally pure aluminum, the Haasen plots can reveal their existence and a new activation distance plot can determine their magnitudes for specific ob…
Yttria stabilized zirconia solid electrolyte surface modification with ZrO2, Y2O3, and ZrO2 + 9 mol % Y2O3 films
The surface of ceramic electrolyte ZrO 2 + 9 mol % Y 2 O 3 , hereinafter referred to as YSZ (abbreviated yttria stabilized zirconia), was modified with 0.1 to 0.2 μm oxide films of ZrO 2 , Y 2 O 3 , and YSZ (same composition as substrate) by dip coating in alcohol solutions of the relevant salts and further annealing.…
High Strength and Toughness Al<sub>2</sub>O<sub>3</sub> Composite Materials for the Improvement of Ceramic Channel in SRL Hot Dipping System
The ceramic channel is very important in SRL hot dipping system. High strength and fracture toughness of ceramic channel materials can improve the quality, productivity and economic feasibility of zinc plated steel. The purpose of this research was to find out the most suitable conditions of the ceramic channel that h…
Metal-Containing Polyurethanes: An Overview
The combination of the concept of metallopolymers with urethane chemistry offers a versatile approach for the synthesis of new polyurethane materials. Polyurethanes are a distinct class of materials with tremendous industrial importance, and it is of interest to develop these materials with modified thermal and liquid…
Correcting the systematic error of the density functional theory calculation: the alternate combination approach of genetic algorithm and neural network
The alternate combinational approach of genetic algorithm and neural network (AGANN) has been presented to correct the systematic error of the density functional theory (DFT) calculation. It treats the DFT as a black box and models the error through external statistical information. As a demonstration, the AGANN metho…
Thermodynamics of mixed-ligand complexation of gadolinium ethylenediaminetetraacetate with amino acids in aqueous solution
Mixed-ligand complexation of GdEdta− with glycinate, L-glutamate, DL-aspartate, iminodiacetate, and nitrilotriacetate anions in aqueous solutions at 298.15 K and the ionic strength I = 0.5 (KNO3) was studied. The thermodynamic parameters (logK, Δ r G, Δ r H, Δ r S) of these reactions were determined from calorimetric…
The effect of osmium staining on lamellar spacing in thin polystyrene-polyisoprene diblock copolymer films
Thin films of lamellar-structured polystyrene-block-polyisoprene were vapour stained with osmium tetroxide and compared using transmission imaging in an environmental scanning electron microscope to unstained films of the same polymer. Staining was found to swell the affected phase by a factor of 1.15 in-plane, compre…
The effect of different type of crosslinks on electrical properties in crosslinked polyethylene
In this study LDPE has been crosslinked below and above Tmwith the use of different techniques. Two of the materials were crosslinked with dicumyl peroxide (DCP), and one material was crosslinked with silane crosslinking, where silane groups are converted to silanol that form crosslinks via a condensation reaction in…
Analysis of radiation environmental safety for China's Spallation Neutron Source (CSNS)
The China Spallation Neutron Source (CSNS) is going to be located in Dalang Town, Dongguan City in the Guangdong Province. In this paper we report the results of the parameters related with environment safety based on experiential calculations and Monte Carlo simulations. The main project of the accelerator is an unde…