Results 21 to 30 of about 289,538 (285)

Tectonic and geochemical criteria of organic matter evolution of the Carpathians Krosnen zone in the context of oil and gas potential

open access: yesВісник Харківського національного університету імені В.Н. Каразіна. Серія Геологія. Географія. Екологія
Statement of the general problem. The article provides an analysis of the geological and tectonic factors that influenced the formation of deposits of the Krosnenskaya zone of the Outer Carpathians. The authors considered several questions related to the
Yury Кhoha   +2 more
doaj   +1 more source

Revisión de los sistemas de gasificación de biomasa para la generación de energía en Costa Rica de 1982 a 2014

open access: yesTecnología en Marcha, 2018
El desarrollo de la gasificación en Costa Rica inicia en la década de los 80 con un curso de gasificación impartido por la Organización Latinoamericana de Energía (OLADE).
José Alberto Castillo-Benavides   +3 more
doaj   +1 more source

Impulse Correlation for Partially Filled Detonation Tubes [PDF]

open access: yes, 2004
The effect of nozzles on the impulse obtained from a detonation tube of circular cross section has been the focus of many experimental and numerical studies. In these cases, the simplified detonation tube is closed at one end (forming the thrust surface)
Cooper, M., Schauer, F., Shepherd, J. E.
core   +1 more source

Biofuels Combustion

open access: yesAnnual Review of Physical Chemistry, 2013
This review describes major features of current research in renewable fuels derived from plants and from fatty acids. Recent and ongoing fundamental studies of biofuel molecular structure, oxidation reactions, and biofuel chemical properties are reviewed, in addition to combustion applications of biofuels in the major types of engines in which ...
openaire   +3 more sources

Combustion noise

open access: yesProceedings of the Combustion Institute, 2015
AbstractCombustion noise is becoming increasingly important as a major noise source in aeroengines and ground based gas turbines. This is partially because advances in design have reduced the other noise sources, and partially because next generation combustion modes burn more unsteadily, resulting in increased external noise from the combustion.
Dowling, Ann P., Mahmoudi, Yasser
openaire   +3 more sources

Evaluación de modelos de combustible forestal del bosque seco tropical del parque natural regional Los Besotes - Valledupar, Cesar

open access: yesRevista Politécnica, 2023
El desarrollo de modelos matemáticos han ayudado a explicar comportamiento sociales, económicos y ambientales, para este caso, la construcción de un modelo de combustible de la vegetación del Parque Natural Regional Los Besotes se convierte en ...
Carlos Daniel Castillo-de-Luque   +4 more
doaj   +1 more source

3D Finite Elements Modelling for Design and Performance Analysis of UO𝟐 Pellets

open access: yesScience and Technology of Nuclear Installations, 2011
The geometry of a fuel pellet is a compromise among the intention to maximize UO2 content and minimize the temperature gradient taking into account the thermomechanical behaviour, the economy, and the safety of the fuel management during and after ...
Gustavo L. Demarco, Armando C. Marino
doaj   +1 more source

Impacto medioambiental de la minería y la metalurgia del cobre durante la Edad del Bronce en Kargaly (región de Orenburgo, Rusia)

open access: yesTrabajos de Prehistoria, 2010
Kargaly (región de Orenburgo, Rusia) es una región cuprífera explotada entre los milenios IV y II cal BC y los siglos XVIII y XX d.C. El objetivo del artículo es estudiar comparativamente el impacto de estos episodios mineros en la distribución de los ...
Juan Manuel Vicent García   +3 more
doaj   +1 more source

A mechanism for high-frequency oscillation in ramjet combustors and afterburners [PDF]

open access: yes, 1956
An experimental investigation was made of the behavior of a small two-dimensional combustion chamber, burning a uniform mixture of air and fuel vapor under conditions of high-frequency oscillation or screech.
Marble, Frank E., Rogers, Don E.
core   +1 more source

Regeneration of deposits of hydrocarbon fields of Ukraine

open access: yesВісник Харківського національного університету імені В.Н. Каразіна. Серія Геологія. Географія. Екологія, 2023
Formulation of the problem. In the world's oil and gas-bearing basins, there are known examples of an increase in the reserves of hydrocarbon deposits as a result of inflow of fluids from the deep subsoil.
Yaroslav Lazaruk
doaj   +1 more source

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