Results 81 to 90 of about 391,526 (305)

In situ detection of boron by ChemCam on Mars [PDF]

open access: yes, 2017
We report the first in situ detection of boron on Mars. Boron has been detected in Gale crater at levels Curiosity rover ChemCam instrument in calcium-sulfate-filled fractures, which formed in a late-stage groundwater circulating mainly in phyllosilicate-
Anderson   +86 more
core   +6 more sources

Tuning the Dielectric Properties of Individual Clay Nanosheets by Interlayer Composition: Toward Nano‐Electret Materials

open access: yesAdvanced Functional Materials, EarlyView.
The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich   +6 more
wiley   +1 more source

Synthesis of Borophene Nanoribbons on Ag(110) Surface

open access: yes, 2017
We present the successful synthesis of single-atom-thick borophene nanoribbons (BNRs) by self-assembly of boron on Ag(110) surface. The scanning tunneling microscopy (STM) studies reveal high quality BNRs: all the ribbons are along the [-110] direction ...
Chen, Lan   +9 more
core   +1 more source

Electroactive Metal–Organic Frameworks for Electrocatalysis

open access: yesAdvanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska   +7 more
wiley   +1 more source

Resistivity reduction of boron-doped multi-walled carbon nanotubes synthesized from a methanol solution containing a boric acid

open access: yes, 2008
Boron-doped multi-walled carbon nanotubes (MWNTs) were synthesized using a methanol solution of boric acid as a source material. Accurate measurements of the electrical resistivity of an individual boron-doped MWNT was performed with a four-point contact,
Ishii, Satoshi   +5 more
core   +1 more source

Auto‐Generated Valence States in Electrocatalysts for Boosting Oxygen and Hydrogen Evolution Kinetics in Alkaline Water/Alkaline Seawater/Simulated Seawater/Natural Seawater

open access: yesAdvanced Functional Materials, EarlyView.
This review systematically highlights the latest achievements in mixed‐valence states relevant to hydrogen and oxygen evolution reactions, providing essential insights into future directions and methods for large‐scale practical implementation. This critical review is expected to provide an overview of recent advancements in diverse valence‐state metal
Jitendra N. Tiwari   +4 more
wiley   +1 more source

ДЖЕРЕЛА ЦИТАЦІЙ ІЗ ДАНТЕ У ШЕВЧЕНКОВИХ ЛИСТАХ

open access: yesВісник Київського національного університету імені Тараса Шевченка. Літературознавство. Мовознавство. Фольклористика, 2022
Шевченко у своїй творчості не раз згадував ім'я італійського поета Передвідродження Данте Аліг'єрі (1265–1321), вдавався до ремінісценцій і цитацій із його доробку, що свідчить про доволі високий рівень обізнаності зі спадщиною автора "Божественної ...
Oleksandr Boron
doaj  

Effect of tangential swirl air inlet angle on the combustion efficiency of a hybrid powder-solid ramjet [PDF]

open access: yes, 2019
A new ramjet configuration using powder and solid fuel as propellant is investigated, namely, hybrid powder-solid ramjet (HPSR). Boron particles were used as the powder in this study.
ANSYS Inc   +49 more
core   +1 more source

Through Diamond Robust Surface Enhanced Raman Spectroscopy

open access: yesAdvanced Functional Materials, EarlyView.
Thin film diamond growth offers a unique opportunity for Surface Enhanced Raman Spectroscopy (SERS); the encapsulation of plasmonic nanostructures within a transparent, chemically stable, and physically robust coating. The diamond acts as both a window and protective layer, enabling illumination of the plasmonic nanostructures through the diamond ...
Kieran N. Twaddle   +4 more
wiley   +1 more source

Manufacturing rectangular-sectioned axes in a Corded Ware culture in the light of refittings at Wilczyce 10, district Sandomierz (Poland)

open access: yesArcheologické Rozhledy, 2017
Site Wilczyce is situated on Sandomierz Upland in the south of Poland. It was discovered in 1994 during a systematic archaeological survey within the project Archaeological Picture of Poland.
Tomasz Boroń
doaj   +1 more source

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