Results 11 to 20 of about 274,489 (274)

Study on Reactive Air Brazing of p-SiO2 Ceramic with Ag-xCuO Filler Metal

open access: yesMetals, 2023
Reactive air brazing of porous SiO2 ceramic (p-SiO2) was achieved using Ag-CuO filler metal. When brazing p-SiO2, two main problems existed. Firstly, the wettability of the Ag filler metal on the surface of p-SiO2 was poor.
Yongwei Chen, Qiang Ma, Peng He
doaj   +1 more source

Fabrication and Phase Behavior of Thermo- and/or pH-Responsive Polymer-Grafted SiO2 Nanoparticles

open access: yesApplied Sciences, 2022
Three series of thermo- and/or pH-responsive polymer-grafted SiO2 nanoparticles, SiO2-graft-poly(oligo(ethylene glycol) methacrylate) (SiO2-g-POEGMA), SiO2-graft-poly(acrylic acid) (SiO2-g-PAA) and SiO2-graft-poly(oligo(ethylene glycol) methacrylate ...
Xiaoyan Liu   +5 more
doaj   +1 more source

Roles of Si and SiNPs in Improving Thermotolerance of Wheat Photosynthetic Machinery via Upregulation of PsbH, PsbB and PsbD Genes Encoding PSII Core Proteins

open access: yesHorticulturae, 2021
Photosystem II is extremely susceptible to environmental alterations, particularly high temperatures. The maintenance of an efficient photosynthetic system under stress conditions is one of the main issues for plants to attain their required energy ...
Heba Hassan   +4 more
doaj   +1 more source

First detection of 22 GHz H2O masers in TX Camelopardalis [PDF]

open access: yes, 2014
Simultaneous time monitoring observations of H$_{2}$O $6_{16}-5_{23}$, SiO $J$ = 1--0, 2--1, 3--2, and $^{29}$SiO $v$ = 0, $J$ = 1--0 lines were carried out in the direction of the Mira variable star TX Cam with the Korean VLBI Network single dish radio ...
Cho, Se-Hyung   +2 more
core   +1 more source

SiO maser observations of a wide dust-temperature range sample [PDF]

open access: yes, 2007
We present the results of SiO line observations of a sample of known SiO maser sources covering a wide dust-temperature range. The aim of the present research is to investigate the causes of the correlation between infrared colors and SiO maser intensity
Bujarrabal   +7 more
core   +1 more source

Insights on microstructural evolution and capacity fade on diatom $$\hbox {SiO}_2$$ SiO 2 anodes for lithium-ion batteries

open access: yesScientific Reports, 2023
$$\hbox {SiO}_2$$ SiO 2 is a promising material for developing high-capacity anodes for lithium-ion batteries (LIBs). However, microstructural changes of $$\hbox {SiO}_2$$ SiO 2 anodes at the particle and electrode level upon prolonged cycling remains ...
Weicheng Hua   +4 more
doaj   +1 more source

Molecular gas chemistry in AGN. II. High-resolution imaging of SiO emission in NGC1068: shocks or XDR? [PDF]

open access: yes, 2010
This paper is part of a multi-species survey of line emission from the molecular gas in the circum-nuclear disk (CND) of the Seyfert 2 galaxy NGC1068. Single-dish observations have provided evidence that the abundance of silicon monoxide(SiO) in the CND ...
A. Fuente   +87 more
core   +3 more sources

Tribological behavior and wear mechanism of modified nano-SiO2 reinforced epoxy composites

open access: yesCailiao gongcheng, 2019
Nano-SiO2 surface grafted APTES (T-SiO2) was realized by covalent functionalization technology, and functionalized nano-SiO2 modified epoxy resin composite (T-SiO2/EP) was prepared.
TIAN Jin   +4 more
doaj   +1 more source

SiO-GO nanofillers enhance the corrosion resistance of waterborne polyurethane acrylic coatings

open access: yesAdvanced Composites Letters, 2020
Corrosion to metal is a great challenge to major industries. Anticorrosive coatings can effectively prevent metal corrosion. In this study, we propose a novel method to prepare silica nanoparticles-covered graphene oxide (SiO 2 -GO) nanohybrids and ...
Liqi Liu   +5 more
doaj   +1 more source

SiO2 Fibers of Two Lengths and Their Effect on Cellular Responses of Macrophage-like Cells

open access: yesMolecules, 2022
The immunoreactivity or/and stress response can be induced by nanomaterials’ different properties, such as size, shape, etc. These effects are, however, not yet fully understood. This study aimed to clarify the effects of SiO2 nanofibers (SiO2NFs) on the
Denisa Smela   +5 more
doaj   +1 more source

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