Results 71 to 80 of about 78,539 (204)

Improved antimicrobial activities of biphasic titania nanowires against Gram-negative and Gram-positive bacteria

open access: yesKuwait Journal of Science
This research focused on the synthesis of biphasic titania nanowires from commercially available anatase titania via hydrothermal method to improve its antimicrobial activity.
Ridwan M., Prastya M.E., Fadilah C.
doaj   +1 more source

Pengaruh elemen gamifikasi terhadap motivasi pelajar menggunakan aplikasi quizizz [PDF]

open access: yes, 2019
Pelajar generasi abad ke 21 sekarang lebih berminat belajar menggunakan gadjet atau alat-alat komunikasi canggih tanpa wayar yang berasaskan teknologi.
Abd Nasir, Nurathirah
core  

Revisiting the synthesis of dimethyl carbonate from methanol and carbon dioxide

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract The process for producing dimethyl carbonate (DMC) from carbon dioxide (CO2) and methanol is explored in this article. It provides an overview of the thermodynamics involved in DMC synthesis, discussing the challenges and potential solutions. The article highlights the reported use of catalysts and dehydrating agents to improve DMC yield and ...
Diego Alexander Santos Araque   +3 more
wiley   +1 more source

Tunable high-index photonic glasses [PDF]

open access: yes, 2019
Materials with extreme photonic properties such as maximum diffuse reflectance, high albedo, or tunable band gaps are essential in many current and future photonic devices and coatings.
Aegerter, Christof M.   +6 more
core   +1 more source

Transfer Hydrogenation of Organic Azides to Amines by Ammonia Borane Complex Under Mild Conditions Catalyzed by Reusable Au Nanoparticles

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
Organic azides are readily reduced to amines under mild conditions by ammonia borane complex, catalyzed by a low loading level of reusable Au nanoparticles supported on TiO2. We present the first protocol for the chemoselective reduction of organic azides to amines by ammonia borane complex. In the presence of a low catalytic amount of Au nanoparticles
Elisavet‐Maria Zantioti‐Chatzouda   +5 more
wiley   +1 more source

Atomic layer deposition-based tuning of the pore size in mesoporous thin films studied by in situ grazing incidence small angle x-ray scattering

open access: yes, 2014
Atomic layer deposition (ALD) enables the conformal coating of porous materials, making the technique suitable for pore size tuning at the atomic level, e.g., for applications in catalysis, gas separation and sensing.
Bals, Sara   +8 more
core   +1 more source

High‐Titanium Zircon Rims in Rhyolite – A Reflection of Adiabatic Ascent?

open access: yesGeological Journal, EarlyView.
The ascent of granitic magma from source to emplacement is rapidly achieved through dyking, resulting in negligible heat loss to the surrounding wallrock (i.e., adiabatic). Zircon growth during ascent can record the changing magma conditions including adiabatic cooling and heating, resulting in high titanium rims on low titanium cores without ...
Carson Kinney   +2 more
wiley   +1 more source

Novel Therapeutics for Chronic Obstructive Pulmonary Disease: From Empirical Bronchodilation to Precision Medicine

open access: yesRespirology, EarlyView.
ABSTRACT Chronic obstructive pulmonary disease (COPD) remains the third leading cause of death worldwide, and conventional bronchodilator‐based therapies have limited efficacy in preventing exacerbations and disease progression. The 2024–2026 period represents a historic inflection point: three mechanistically distinct agents received Food and Drug ...
Naoya Fujino, Hisatoshi Sugiura
wiley   +1 more source

Raman spectral identification of phase distribution in anodic titanium dioxide coating; pp. 422–429 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2017
Growing need for cleaner environment and energy production has brought about a hunt for perspective materials. One of such perspective materials is titanium dioxide (TiO2, titania) due to its chemical stability and photocatalytic properties.
Ainars Knoks   +2 more
doaj   +1 more source

Astrometry of the main satellites of Uranus: 18 years of observations

open access: yes, 2015
We determine accurate positions of the main satellites of Uranus: Miranda, Ariel, Umbriel, Titania, and Oberon. Positions of Uranus, as derived from those of these satellites, are also determined. The observational period spans from 1992 to 2011.
Andrei, A. H.   +9 more
core   +3 more sources

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