Results 61 to 70 of about 101,191 (190)

Nonpolar optical scattering of positronium in magnesium fluoride [PDF]

, 2004
We report the results of the analysis of the temperature broadening of the momentum distribution of delocalized Positronium (Ps) in Magnesium Fluoride in terms of optical deformation-potential scattering model (long-wavelength optical phonons). The Ps optical deformation-potential coupling constant $D_{o}$ in MgF$_{2}$ has been determined to be $(1.8 ...
arxiv   +1 more source

Evaluation of wear resistance and fluoride release from glass ionomer covered with nanofilled self-adhesive coat: An in vitro study

Caspian journal of dental research, 2021
Introduction: The resin-modified glass ionomer (RMGI) materials are hybrid materials including conventional glass ionomer and small addition resin. They have the advantages of both, such as adhesion to tooth structure, esthetics and fluoride release. The
Zahra Lari, Fariba Ezoji, Hemmat Gholinia, Effat Khodadadi   +3 more
doaj  

Study on the condensation behavior of the key metal fluorides in molten salts during low-pressure distillation

He jishu
BackgroundIn thorium-based molten salt reactors (TMSRs), 233Pa is an important intermediate nuclide in the conversion chain of 232Th to 233U, and 233PaF5 can be effectively separated from carrier salt by low-pressure distillation.
HUO Yuting, LUO Yan, XIANG Haifei, DOU Qiang, MA Jie, WENG Hongmeng, LI Qingnuan   +6 more
doaj   +1 more source

Persica chewing gum effects on saliva fluoride concentration and flow rate: A triple-blind randomized clinical trial

Contemporary Clinical Dentistry, 2019
Context: Dental caries is a prevalent disease worldwide. Salvadora persica or Miswak could be a source of fluoride and has caries preventive effects.
Shiva Mortazavi, Abolfazl Aslani, Mehrnoush Babaee, Maryam Hajiahmadi   +3 more
doaj   +1 more source

Symmetry Analysis of the Kohn-Sham Band Structure of Bulk Lithium Fluoride [PDF]

arXiv, 2003
Kohn-Sham orbitals of face-centered cubic lithium fluoride are calculated in prototypical local-density approximations to the exchange-correlation functional. The symmetry analysis of these Bloch functions in a LCAO basis on a path Gamma-X-W-K-Gamma-L-W through the Brillouin Zone is compiled into a list of errata to symmetry labels in the LiF ...
arxiv  

MgO Modified with MgF₂ as an Electrolyte Immobilizing Agent for the High-Temperature Cells

Applied Sciences, 2019
Magnesium oxide, generally applied as a filler in high-temperature cells (with an electrolyte melting point above 250 °C), was modified with magnesium fluoride to improve its mechanical and electrical properties.
Michał Zieliński, Angelika Kiderys, Mariusz Pietrowski, Bogdan Czajka, Iwona Tomska-Foralewska, Maria Wojciechowska   +5 more
doaj   +1 more source

The history of public health use of fluorides in caries prevention

Slovenian Journal of Public Health, 2017
The aim of our study was to chronologically analyse various public health measures of fluoride use in caries prevention.
Šket Tea, Kukec Andreja, Kosem Rok, Artnik Barbara   +3 more
doaj   +1 more source

The Electronic Structure of the Hydrogen Fluoride Ion [PDF]

, 1957
Hidekazu Hamano
openalex   +1 more source

Selective O‐Acylation of Enol Silyl Ethers with Acyl Fluorides Catalyzed by Fluoride Ions Derived from Potassium Fluoride and 18‐Crown‐6

ChemistryOpen
The fluoride ion‐catalyzed selective O‐acylation of enol silyl ethers with acyl fluorides using KF and 18‐Crown‐6 is described herein. This catalytic system facilitated the practical and facile reaction of a variety of enol silyl ethers derived from ...
Prof. Dr. Norio Sakai, Kota Watanabe, Haruka Mori, Yuki Maegawa, Ryuki Takeuchi, Dr. Yohei Ogiwara, Dr. Kento Ishida   +6 more
doaj   +1 more source

Elemental depth profiling of fluoridated hydroxyapatite by X-ray photoelectron spectroscopy [PDF]

arXiv, 2008
Structural and chemical changes that arise from a fluoridation of synthetic hydroxyapatite in neutral and acidic fluoridation agents are investigated. For synthetic hydroxyapatite (Ca5(PO4)3OH = HAp), the elemental depth profiles were determined by X-ray photoelectron spectroscopy (XPS) to reveal the effect of fluoridation in nearly neutral (pH = 6.2 ...
arxiv