Results 31 to 40 of about 274,489 (274)

Synthesis and Properties of Polyimide Silica Nanocomposite Film with High Transparent and Radiation Resistance

open access: yesNanomaterials, 2021
In order to prepare flexible glass cover sheet materials suitable for space solar cells, fluorinated diamine 2,2’-bistrifluoromethyl benzidine (TFDB) and fluorinated dianhydride 4,4’ (hexafluoroisopropyl) diphthalic dianhydride (6FDA) as the monomer ...
Jindong Huang   +3 more
doaj   +1 more source

SiO Emission in the Multi-Lobe Outflow associated with IRAS 16293-2422 [PDF]

open access: yes, 2000
We have mapped the thermal emission line of SiO (v = 0; J = 2-1) associated with the quadrupolar molecular outflow driven by the very cold far-infrared source IRAS 16293-2422. The SiO emission is significantly enhanced in the northeastern red lobe and at
Bachiller R.   +12 more
core   +4 more sources

Silica-Coated Magnetic Iron Oxide Nanoparticles Grafted onto Graphene Oxide for Protein Isolation

open access: yesNanomaterials, 2020
In this study, silica-coated magnetic iron oxide nanoparticles (MNPs@SiO2) were covalently conjugated onto graphene oxide (GO/MNP@SiO2) for protein isolation.
Xuan-Hung Pham   +8 more
doaj   +1 more source

The wind of W Hya as seen by Herschel. II. The molecular envelope of W Hya [PDF]

open access: yes, 2014
The evolution of low- and intermediate-mass stars on the asymptotic giant branch (AGB) is mainly controlled by the rate at which these stars lose mass in a stellar wind.
Alcolea, J.   +20 more
core   +3 more sources

Correlation between Infrared Colors and Intensity Ratios of SiO Maser Lines

open access: yes, 2007
We present the results of SiO millimeter-line observations of a sample of known SiO maser sources covering a wide dust-temperature range. A cold part of the sample was selected from the SiO maser sources found in our recent SiO maser survey of cold dusty
Alcolea J.   +25 more
core   +1 more source

IRAS 16293-2422: Evidence for Infall onto a Counter-Rotating Protostellar Accretion Disk [PDF]

open access: yes, 2005
We report high spatial resolution VLA observations of the low-mass star-forming region IRAS 16293-2422 using four molecular probes: ethyl cyanide (CH$_3$CH$_2$CN), methyl formate (CH$_3$OCHO), formic acid (HCOOH), and the ground vibrational state of ...
Hollis, J. M., Remijan, Anthony J.
core   +3 more sources

Synthesis and Luminescence Properties of Core-Shell-Shell Composites: SiO2@PMDA-Si-Tb@SiO2 and SiO2@PMDA-Si-Tb-phen@SiO2

open access: yesNanomaterials, 2019
Two novel core-shell composites SiO2@PMDA-Si-Tb, SiO2@PMDA-Si-Tb-phen with SiO2 as the core and terbium organic complex as the shell, were successfully synthesized.
Lina Feng   +8 more
doaj   +1 more source

Effect of Size-Dependent Thermal Instability on Synthesis of Zn2 SiO4-SiOx Core–Shell Nanotube Arrays and Their Cathodoluminescence Properties

open access: yesNanoscale Research Letters, 2010
Vertically aligned Zn2SiO4-SiOx(x < 2) core–shell nanotube arrays consisting of Zn2SiO4-nanoparticle chains encapsulated into SiOx nanotubes and SiOx-coated Zn2SiO4 coaxial nanotubes were synthesized via one-step thermal annealing process using ...
Dierre Benjamin   +6 more
doaj   +1 more source

Effect of Hydrogen Migration in SiO2/Al2O3 Stacked Gate Insulator of InGaZnO Thin-Film Transistors

open access: yesCrystals, 2022
In this work, the correlation between SiO2 deposition thickness and hydrogen content is discussed and the effect of the SiO2 layer on the properties of synaptic InGaZnO (IGZO) TFTs is analyzed.
Shinyoung Park   +4 more
doaj   +1 more source

Photoluminescence of undoped and erbium-doped SiO/SiO/sub 2/ multilayers [PDF]

open access: yesIEEE International Conference on Group IV Photonics, 2005. @nd, 2005
We show the possibility to obtain amorphous SiO/SiO/sub 2/ and silicon nanocrystal (Si-nc) superlattices by evaporation. The size of the Si-nc is well controlled. The coupling between the nanocrystals and erbium ions is studied.
O. Jambois   +6 more
openaire   +1 more source

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