Results 81 to 90 of about 298,829 (204)

Temporal Trends in Relative Abundance of Billfish and Other Large Pelagic Fish in Recreational Fisheries of Costa Rica

open access: yesFisheries Management and Ecology, Volume 32, Issue 6, Page 499-515, December 2025.
ABSTRACT Fishing tourism of sailfish and accompanying species represents a significant source of income for Costa Rica. However, little information is available regarding trends in the availability of these species to recreational fleets. We estimated temporal trends in catch per unit effort (CPUE) for sailfish, marlins, yellowfin tuna, and mahi mahi ...
Johel Chaves‐Campos   +2 more
wiley   +1 more source

Inyección de mineral de manganeso en acero líquido

open access: yesRevista de Metalurgia, 2003
En este trabajo se realiza un estudio, teórico y experimental, para determinar la velocidad de reducción de MnO inyectado dentro de acero líquido con contenidos de carbono de 0,5, 1,0 y 2,0 % masa, a 1.600 °C.
M. Vargas-Ramírez   +3 more
doaj   +1 more source

CARACTERIZACIÓN DEL MATERIAL QUE SE UTILIZA PARA FABRICAR LAS TABLILLAS PARA TRANSPORTADORES CAÑEROS

open access: yesRevista Centro Azúcar, 2006
Se expone el estudio de la caracterización de un acero de bajo contenido de carbono para su utilización en la fabricación de tablillas de transportadores cañeros.
Aida Concepción Morales   +3 more
doaj  

Comportamiento del acero AISI-SAE 8615 frente al proceso de nitrocarburación ferrítica, utilizando urea-metanol

open access: yesRevista de Metalurgia, 1998
El presente trabajo muestra el comportamiento del acero aleado de bajo contenido de carbono, AISISAE 8615, cuando se somete a un proceso de nitrocarburación ferrítica, a la temperatura de 570ºC y un tiempo de 3 h.
M. I. Barrena, A. Castro
doaj   +1 more source

The complex gamma-ray behaviour of the Radio Galaxy M87

open access: yes, 2018
Context.In recent years, non-blazar Active Galactic Nuclei (AGN) such as Radio Galaxies have emerged as a highly instructive source class providing unique insights into high energy acceleration and radiation mechanisms.
Benkhali, Faiçal Ait   +2 more
core   +1 more source

Large Binocular Telescope observations of PSR J2043+2740 [PDF]

open access: yes, 2017
We present the results of deep optical imaging of the radio/$\gamma$-ray pulsar PSR J2043+2740, obtained with the Large Binocular Telescope (LBT). With a characteristic age of 1.2 Myr, PSR J2043+2740 is one of the oldest (non recycled) pulsars detected ...
Breeveld, A. A.   +7 more
core   +3 more sources

Revisiting the Checkerboard to Inform Development of β-Lactam/β-Lactamase Inhibitor Combinations

open access: yesAntibiotics
A two-dimensional “checkerboard” array employing systematic titration (e.g., serial two-fold dilutions) is a well-established in vitro method for exploring the antibacterial effects of novel drug combinations.
Darren J. Bentley
doaj   +1 more source

Estudio de la capacidad para intumescer de dos sistemas de pintura expuestos a ambientes internos agresivos

open access: yesRevista de Metalurgia, 2005
Es conocida la influencia que ejerce la temperatura en la capacidad resistente del acero estructural. Un sistema de protección del acero, altamente efectivo, consiste en la utilización de pinturas intumescentes. Su efectividad se basa en el hecho de que,
B. Chico   +6 more
doaj   +1 more source

The SNR Puppis A Revisited with Seven Years of Fermi Large Area Telescope Observations

open access: yes, 2017
Puppis A is a very famous and extensively studied supernova remnant (SNR) that shows strong evidence of shock-cloud interaction. We re-analyze the GeV $\gamma$-ray emission of it using seven years Pass 8 data recorded by the Fermi Large Area Telescope ...
Guo, Xiao-Lei   +5 more
core   +1 more source

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