Results 11 to 20 of about 352,155 (275)

Un isotope «non-naturel» du Fluor : Le Fluor-18

International audienceBien que le Fluor ne possède qu’un seul isotope naturel, le Fluor-19, il en existe un autre, le Fluor-18. Ce dernier, radioactif, peut être facilement produit avec un cyclotron.
Billard, Thierry
core   +5 more sources

Fluor Hanford Nuclear Material Stabilization Project Welding Manual [PDF]

, 2000
The purpose of this section of the welding manual is to: (1) Provide a general description of the major responsibilities of the organizations involved with welding. (2) Provide general guidance concerning the application of codes related to welding. This
BERKEY, J.R.
core   +1 more source

Volatile elements in alkaline and calc-alkaline rocks from the Colima graben, Mexico: Constrains on their genesis and evolution

Geofísica Internacional, 1993
Tomando esencialmente como base la composición química de los elementos mayores, tres diferentes grupos de rocas fueron reconocidos en el graben de Colima: El grupo alcalino, calcialcalino y calcialcalino rico en potasio.
José Luis Macías, Bruno Capaccioni, Sandro Conticelli, Luciano Giannini, Marino Martini, Sergio Rodríguez   +5 more
doaj   +1 more source

Surface Structure Study of Crystal Hydroxy-Apatite from Fluorosis Enamels

Journal of Dentistry Indonesia, 2013
Fluorosis is a condition due to ingestion of excessive amounts of fluor which can cause the change in tooth structure and strength. However, there is still lack of explanation on the surface structure of crystal hydroxyapatite that influences the ...
Abdillah Imron Nasution, Harun Asyiq Gunawan, Sri Angky Soekanto   +2 more
doaj   +1 more source

Engineering by Cuts: How Kirigami Principle Enables Unique Mechanical Properties and Functionalities

Advanced Science, 2023
Kirigami, the ancient art of paper cutting, has evolved into a design and fabrication framework to engineer multi‐functional materials and structures at vastly different scales.
Jiayue Tao, Hesameddin Khosravi, Vishrut Deshpande, Suyi Li   +3 more
doaj   +1 more source

Amplification of GaSb-Based Diode Lasers in an Erbium-Doped Fluoride Fibre Amplifier

IEEE Photonics Journal, 2023
Building upon recent advances in GaSb-based diode lasers and Er-doped fluoride fibre technologies, this article demonstrates for the first time the fibre-based amplification of mid-infrared diode lasers in the wavelength range around 2.78 $\mu$m.
Nikolai B. Chichkov, Amit Yadav, Franck Joulain, Solenn Cozic, Semyon V. Smirnov, Leon Shterengas, Julian Scheuermann, Robert Weih, Johannes Koeth, Sven Hofling, Ulf Hinze, Samuel Poulain, Edik U. Rafailov   +12 more
doaj   +1 more source

Skuteczność zastosowania substancji biologicznie czynnych w łagodzeniu stresu wywołanego przez fluorek sodu na podstawie parametrów morfologicznych, biochemicznych i fizjologicznych u pszenicy jarej (Triticum aestivum L.) odmiany Bryza

Agronomy Science, 2017
Rośliny w trakcie swojego wzrostu i rozwoju stale są narażone na wpływ czynników stresowych. Jednym z tych czynników jest zanieczyszczenie środowiska związkami fluoru.
BEATA SMOLIK, JUSTYNA PELC
doaj   +1 more source

Liberación del ion flúor de un cemento de ionómero vítreo modificado con extracto etanólico de propóleo

Odontología Sanmarquina, 2021
Objetivo. El objetivo de este estudio fue cuantificar la liberación de flavonoides y flúor en probetas de ionómero vítreo convencional tipo II modificado con extracto de propóleo. Métodos. Fueron utilizadas 60 unidades de análisis.
Melisa Raquel Lezcano, María Eugenia Zamudio   +1 more
doaj   +1 more source

A Soft Robotic Gripper for Crop Harvesting: Prototyping, Imaging, and Model-Based Control

AgriEngineering
The global agricultural sector faces escalating labor shortages and post-harvest losses, particularly in delicate crop handling. This study introduces an integrated soft robotic harvesting system addressing these challenges through four key innovations ...
Yalun Jiang, Javad Mohammadpour Velni
doaj   +1 more source

The effect of monofluorophosphate implant in white rat mothers towards the level of fluor in the incisors of their young babies (Rattus-rattus)

Dental Journal, 2010
Background: Fluoride has been widely used in the prevention of dental caries for a long time. To prevent dental caries, fluoride must be induced in low amount at high frequency.
Widjijono Widjijono
doaj   +1 more source