Results 11 to 20 of about 88,764 (264)

Al Doped ZnO Thin Films; Preparation and Characterization [PDF]

open access: yesJournal of Nanostructures, 2018
ZnO is a promising material suitable for variety of novel electronic applications including sensors, transistors, and solar cells. Intrinsic ZnO film has inferiority in terms of electronic properties, which has prompted researches and investigations on ...
Morteza Shakeri Shamsi   +2 more
doaj   +1 more source

Development of Tin Oxide-Based Nanosensors for Electronic Nose Environmental Applications

open access: yesBiosensors, 2019
Tin oxide nanofibres (NFs) are used as nanosensors in electronic noses. Their performance is compared to that of oxide commercial chemical sensors for pollutant detection.
Isabel Sayago   +2 more
doaj   +1 more source

Analysis of the properties of a Cu-Al2-O3 sintered system based on ultra fine and nanocomposite powders [PDF]

open access: yesScience of Sintering, 2007
In this paper synthesis of a composite based on Cu-Al2O3 by a thermo-chemical method is shown along with a comparative analysis of the properties of the obtained nanocomposite sintered samples, which are characterized by a good combination of electric ...
Anđić Z.   +4 more
doaj   +1 more source

Comparison of root canal length measurement methods in primary teeth

open access: yesDentistry 3000, 2018
Objectives: The purpose of this study was to evaluate the accuracy of conventional radiography, intraoral digital radiovisiography and electronic apex locator in determining the working length of root canals in primary teeth (in-vivo) and to compare the ...
Mine Koruyucu   +3 more
doaj   +1 more source

Cryo-Scanning Electron Microscopy (SEM) and Scanning Transmission Electron Microscopy (STEM)-in-SEM for Bio- and Organo-Mineral Interface Characterization in the Environment [PDF]

open access: yesMicroscopy and Microanalysis, 2017
AbstractUnderstanding biofilm interactions with surrounding substratum and pollutants/particles can benefit from the application of existing microscopy tools. Using the example of biofilm interactions with zero-valent iron nanoparticles (nZVI), this study aims to apply various approaches in biofilm preparation and labeling for fluorescent or electron ...
Wille, Guillaume   +7 more
openaire   +3 more sources

Integrating electron and near-field optics: dual vision for the nanoworld

open access: yesNanophotonics, 2014
The integration of near-field scanning optical microscopy (NSOM) with the imaging and localized excitation capabilities of electrons in a scanning electron microscope (SEM) offers new capabilities for the observation of highly resolved transport ...
Haegel Nancy M.
doaj   +1 more source

Synthesis, Optical and Electrical Properties of ZnFe2O4 Nanocomposites

open access: yesNanomaterials and Nanotechnology, 2012
ZnFe2O4 nanocomposites have been prepared by a simple co‐precipitation method. The prepared samples were characterized by Scanning Electron Microscopy (SEM), Powder X‐ray Diffraction (XRD), Energy Disperse X‐ray Analysis (EDX), Transmission electron ...
G.S. Yashavanth Kumar   +4 more
doaj   +1 more source

Crystal Structure, Microstructure and Electronic Properties of a Newly Discovered Ternary Phase in the Al-Cr-Sc System

open access: yesCrystals, 2021
This study focused on the crystal and electronic structures of a newly discovered phase in the Al-Cr-Sc system. The latter two species do not mix in a binary alloy, but can be alloyed with aluminium in the vicinity of the Al2−xCrxSc composition, where 0 ...
Monika Kušter   +8 more
doaj   +1 more source

Scanning tunneling microscopy (STM) and scanning electron microscopy (SEM) of electrodispersed gold electrodes [PDF]

open access: yesJournal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1988
Abstract Images of large active surface (electrodispersed) gold electrodes obtained by electroreduction of an oxide layer grown by applying a fast periodic square wave potential to polycrystalline specimens, have been obtained by STM and SEM. For the first time a correlation of imaging data of both microscopes can be established which allows one to ...
Gómez, J.   +6 more
openaire   +2 more sources

Comparison of methods to evaluate implant-abutment interface

open access: yesBrazilian Journal of Oral Sciences, 2015
Aim: To compare two main methods of two-dimensional measurement of fit at the implant prosthodontic interface, testing the hypothesis that optical microscopy (OM) can reliably and efficiently scanning electronic microscopy (SEM). Methods: Four frameworks
Karina Oliveira de Faria   +5 more
doaj   +1 more source

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