Results 31 to 40 of about 1,800,563 (181)

Time‐Resolved Investigation of the Molecular Chemiluminescence SrI(A2∏1/2,3,2,B2∑+→X2∑+) and the Atomic Resonance Fluorescence Sr(53P1→51S0) Following The Pulsed Dye Laser Generation Of Sr(53PJ) in the Presence of CF3I

open access: yesLaser Chemistry, Volume 16, Issue 2, Page 121-138, 1995., 1995
A time‐resolved investigation is presented of the electronic energy distribution in SrI following the collision of the optically metastable strontium atom, Sr [5s5p(3PJ)], with the molecule CF3I. Sr[5s5p(3PJ)], 1.807 eV above its 5s2(1S0) electronic ground state, was generated by pulsed dye‐laser excitation of ground state strontium vapour to the Sr ...
S. Antrobus   +4 more
wiley   +1 more source

Películas delgadas de Al2O3 sobre silicio preparadas por ablación láser

open access: yesRevista de Metalurgia, 1998
Se depositaron películas delgadas de Al2O3 por ablación láser sobre Si3N4/Si para utilizarlas como aislante térmico y eléctrico en dispositivos sensores de gases.
A. Lamagna   +3 more
doaj   +1 more source

“OBTENCIÓN Y CARACTERIZACIÓN DE NANOPARTÍCULAS DE BISMUTO Y ÓXIDO DE BISMUTO POR ABLACIÓN LÁSER EN MEDIO LÍQUIDO” [PDF]

open access: yes, 2013
La formación de nanopartículas por ablación láser en medio líquido ha sido desarrollada como una técnica novedosa con ciertas ventajas, comparada con las rutas químicas.
Olea Mejía, Oscar Fernando   +1 more
core  

Vulnerability of tropical fish communities across depth in the central Indian Ocean

open access: yesConservation Biology, Volume 39, Issue 6, December 2025.
Abstract Coral reefs and their fish communities below scuba diving depth (>30 m), in mesophotic coral ecosystems (MCEs) (∼30–150 m), in rariphotic (150–300 m), and in upper bathyal waters (300–500 m) are often underexplored, especially in the Indian Ocean.
Paris V. Stefanoudis   +12 more
wiley   +1 more source

Direct Measurements of Removal Rates of CHF(X˜1A′(0,1,0)) by Simple Alkenes

open access: yesLaser Chemistry, Volume 12, Issue 1-2, Page 43-52, 1992., 1991
Direct measurements of the rate constants for collisional removal of CHF(X˜1A′(0,1,0)) by argon (Ar), ethylene (C2H4), propene (C3H6), 1‐butene (1‐C4H8), iso‐butene (i‐C4H8), 1,3‐butadiene (C4H6), are reported. CHF(X˜1A′(0,1,0)) was prepared by IRMPD of precursor CH2F2. Fluence independence removal rate constants by Ar, ethylene and propene are: 0.0045,
José A. Fernández   +3 more
wiley   +1 more source

Symplastic and apoplastic pathways for local distribution of silicon in rice leaves

open access: yesNew Phytologist, Volume 247, Issue 3, Page 1280-1289, August 2025.
Summary Silicon (Si) is highly accumulated in both the leaf blade and sheath of rice, but the transporter mediating the local distribution of Si between these two tissues remains unidentified. We investigated the role of an aquaporin, OsLsi6, in the local distribution of Si in rice leaves.
Sheng Huang   +4 more
wiley   +1 more source

Kinetic and Spectroscopic Studies of Transient Species Prepared by Irmpd

open access: yesLaser Chemistry, Volume 11, Issue 3-4, Page 163-167, 1991., 1991
Infrared multiple photon absorption is known to be observed in some triatomic and most polyatomic molecules. When the number of absorbed photons is high enough the process leads to photodissociation and excess energy is released as vibrational, rotational and translational energy in the electronic ground state of the fragments.
F. Castaño   +3 more
wiley   +1 more source

Uso del láser de CO2 en cirugía veterinaria : aplicación en cinco casos clínicos [PDF]

open access: yes, 2008
En veterinaria el láser presenta aplicaciones tanto en el campo quirúrgico como médico. Aunque existe un gran variedad de tipos de láser, el láser de COl fue uno de los primeros en ser utilizado y su uso se encuentra muy extendido en medicina veterinaria.
Lafuente, Mª. P.
core  

Middle Pleistocene revelations: unravelling taphonomic processes in mammals including Mesotherium cristatum (Mesotheriidae, Notoungulata), Corralito Site, Córdoba Province, Argentina

open access: yesPalaeontology, Volume 68, Issue 4, July/August 2025.
Abstract Taphonomic studies of Cenozoic mammals are scarce. We report a study of the taphonomy of the Corralito site (Middle Pleistocene to Holocene), Córdoba Province, Argentina, which documents the last population of the South American native ungulate typotherid Mesotherium cristatum. We discovered two specimens of M.
Marcos Fernández‐Monescillo   +6 more
wiley   +1 more source

Caracterización de escorias de cobre de fundiciones chilenas del Siglo XIX

open access: yesRevista de Metalurgia, 2016
El objetivo de este trabajo es caracterizar 4 escorias de fundiciones de cobre del siglo XIX, procedentes de vertederos abandonados en la Región de Atacama - Chile, utilizando las técnicas de fluorescencia de rayos X (FRX), difracción de rayos X (DRX ...
Amin Nazer   +3 more
doaj   +1 more source

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