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Zeolite Modified Vanadium Pentoxide Sensors for the Selective Detection of Volatile Organic Compounds
Springer Science and Business Media LLC - Tập 1 - Trang 3349-3354 - 2016
David C. Pugh, Ivan P. Parkin
Exposure to volatile organic compounds can lead to asphyxiation, pneumonia like conditions, comas, seizures and irreversible lung, kidney and central nervous system damage. Volatile organics are additionally extremely flammable and explosive, making their early detection in the immediate environment increasingly important. Metal oxide semiconductor (MOS) gas sensors present a potential technology ...... hiện toàn bộ
Performance of HfOx- and TaOx-based Resistive Switching Structures for Realization of Minimum and Maximum Functions
Springer Science and Business Media LLC - Tập 3 - Trang 3427-3432 - 2018
Karol Fröhlich, Ivan Kundrata, Michal Blaho, Marian Precner, Milan T̆apajna, Martin Klimo, Ondrej Šuch, Ondrej Škvarek
In our contribution we present and analyze implementation of the resistive switching structures for logic application based on Zadeh fuzzy logic. Resistive switching structures based on HfOx and TaOx were connected in an anti-serial configuration (complementary resistive switch). The complementary resistive switches integrated into logic circuit for Min-Max function implementation were analyzed us...... hiện toàn bộ
Rheological effect of the concentration of nanoparticles in cassava starch
Springer Science and Business Media LLC - Tập 4 - Trang 2889-2896 - 2019
César de Jesús Alarcón-Hernández, Esteban A. González-García, Luis Medina-Torres, Patricio Morales-Pacheco
Biodegradable material was prepared from cassava starch in combination with zinc oxide nanoparticles (ZnO NPs) to give the properties of microbial growth resistance, glycerin concentrations were varied to 5%, 10%, and 20% (w/v) for the study of the rheological properties. The nanoparticles were characterized by a spectrophotometer where an exciton peak at 370 nm was obtained. The different samples...... hiện toàn bộ
Porosity and surface defects characterization of hot isostatically pressed Inconel 718 alloy turbine blades printed by 3D laser metal fusion technology
Springer Science and Business Media LLC - Tập 7 - Trang 197-201 - 2022
D. A. Lesyk, S. Martinez, O. O. Pedash, V. V. Dzhemelinskyi, A. Lamikiz
Selective laser melting (SLM) additive manufacturing technique was applied to fabricate the turbine blade test parts using Inconel (IN) 718 powder. To reduce the porosity, the SLM-built turbine blade parts were subjected to the hot isostatic pressing (HIP) post-treatment. The focus of this study is to study the porosity, surface defects and texture of the SLM-printed and HIP-treated complexly shap...... hiện toàn bộ
CO Sensor based on Thin Film of ZnO Nanoparticles
Springer Science and Business Media LLC - Tập 2 - Trang 2695-2700 - 2017
Carlos Aquino López, Guillermo Carbajal-Franco, Fernanda Márquez Quintana, Alejandro Ávila Garcia
In this research, zinc chloride has been used as precursor and zinc oxide nanostructures have been synthesized by Sol-Gel process, using deionized water and 2-propanol as solvents in order to evaluate their influence on the final materials and their properties. Thin films of synthesized samples were deposited on glass substrates by the dipping method. The structure and morphology of crystals were ...... hiện toàn bộ
Polystyrene adsorbed multi-walled carbon nanotubes incorporated polymethylmethacrylate composites with modified percolation phenomena
Springer Science and Business Media LLC - - 2017
Tajamal Hussain, Tayyaba Malik, Adnan Mujahid, Ghulam Mustafa
Extensive work has been done on the modification of multi-walled carbon nanotubes (MWCNTs) to improve their characteristics. Here, polystyrene (PS) was adsorbed on the surface of MWCNTs by dispersion process, using toluene as medium. PS modified MWCNTs (PS-MWCNTs) have been dispersed in polymethylmethacrylate (PMMA) matrix to prepare composite, PS-MWCNTs/PMMA. It is expected that PS adsorbed at th...... hiện toàn bộ
Nano-Oxide-Dispersed Ferritic Steel for Fusion Energy Systems
Springer Science and Business Media LLC - Tập 3 - Trang 1761-1769 - 2018
L. L. Hsiung, S. J. Tumey, D. T. Hoelzer, M. J. Fluss
The role of oxide nanoparticles in cavity formation of a nano-oxide-dispersed ferritic steel subjected to (Fe + He) dual-ion and (Fe + He + H) triple-ion irradiations has been studied using transmission electron microscopy to elucidate the synergistic effects of helium and hydrogen on radiation tolerance of nano-oxide-dispersed ferritic steel for fusion energy systems. The effect of oxide nanopart...... hiện toàn bộ
Influence of Spin-Orbit Coupling on Electronic Structure of Polyyne and Cumulene Carbynes
Springer Science and Business Media LLC - Tập 1 - Trang 1353-1357 - 2016
Sergey Karabanov, Pavel Dyachkov, Dmitry Suvorov, Gennady Gololobov, Dmitry Tarabrin, Evgeny Slivkin
The present paper has suggested a new non-observational method to calculate electronic structure of carbynes taking into consideration the influence of the spin-orbital coupling. The method is demonstrated by calculations of the structure splitting at the Fermi level in cumulene and polyyne carbynes having semiconductor and metallic electronic structure correspondingly. These couplings result in 2...... hiện toàn bộ
Synthesis, microstructure, and mechanical properties of polycrystalline Cu nano-foam
Springer Science and Business Media LLC - Tập 3 - Trang 469-475 - 2018
Chang-Eun Kim, Raheleh M. Rahimi, Nia Hightower, Ioannis Mastorakos, David F. Bahr
A polycrystalline Cu foam with sub-micron ligament sizes was formed by creating a non-woven fabric via electrospinning with a homogeneous mixture of polyvinyl alcohol(PVA)-and copper acetate(Cu(Ac)2). Thermogravimetric measurement of the electrospun fabric of the precursor solution is reported. Oxidizing the precursor fabric at 773K formed an oxide nano-foam; subsequent heating at 573K with a redu...... hiện toàn bộ
Improvement in Uniformity of Type-II p-GaAsSb/n-InAs Nanowires on GaAs Substrates by the Insertion of GaAs Segments in Position-controlled VLS Method
Springer Science and Business Media LLC - Tập 4 - Trang 331-336 - 2019
Kenichi Kawaguchi, Tsuyoshi Takahashi, Naoya Okamoto, Masaru Sato, Michihiko Suhara
To improve the uniformity of type-II GaAsSb/InAs nanowires (NWs) grown on GaAs substrate using the position-controlled vapor-liquid-solid (VLS) method, the insertion of GaAs NW segments was investigated. In conventional InAs NWs grown directly on patterned GaAs substrate at 430°C, anomalous growth occurred in some pattern holes, and the proportion of holes having anomalous growth was in particular...... hiện toàn bộ
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