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Ediacaran organic-rich Kalus Beds of western Ukraine and NW Moldova: mineralogy, total organic carbon content and hydrocarbon potential [PDF]

open access: yesEstonian Journal of Earth Sciences, 2021
The Ediacaran succession occurs at the southwestern slope of the East European Platform from the Black Sea to the Lublin-Podlasie Basin. It includes a black shale interval in Ukraine represented by the Kalus Beds which may have hydrocarbon source rock ...
Natalia Radkovets   +3 more
doaj   +1 more source

The model of the oil and gas system of the Devonian sedimentary complex of the Biloliskyy block of the Dobrudja foredeep

open access: yesВісник Харківського національного університету імені В.Н. Каразіна. Серія Геологія. Географія. Екологія, 2023
The purpose of the article is to find out the main principal features of the ontogenesis of the oil and gas system of the Devonian deposits of the Dobrudja Foredeep.
Volodymyr Hnidets   +3 more
doaj   +1 more source

Modeling the transformation of І and ІІІ types kerogen by the method of entropy maximization

open access: yesВісник Харківського національного університету імені В.Н. Каразіна. Серія Геологія. Географія. Екологія, 2021
Purpose, methods and research methodology. The aim of the work is to calculate and compare the trends of transformation of organic matter of I-A and III-A type kerogen, which is in contact with organic and inorganic gases in the process of immersion of ...
Олександр Любчак   +3 more
doaj   +1 more source

Geochemical features of the accumulation and migration of heavy metals in the peats of the Lviv region

open access: yesВісник Харківського національного університету імені В.Н. Каразіна. Серія Геологія. Географія. Екологія, 2022
Problem formulation. Study and interpretation of geochemical characteristic, component composition, content of macro- and microelements in peat has both a general scientific fundamental character and an applied one. Its results used for various purposes:
Myroslava Yakovenko   +2 more
doaj   +1 more source

ESTADO DEL ARTE SOBRE LA INFLUENCIA DE MEZCLAS ETANOL-GASOLINA EN EL DESEMPEÑO DE MOTORES DE COMBUSTION INTERNA

open access: yesInvestigación & Desarrollo, 2023
Actualmente, la matriz energética en Bolivia depende en gran medida de los combustibles fósiles, hecho que conlleva a problemas económicos especialmente considerando que la producción de gasolina en Bolivia no cubre la demanda del mercado interno y que ...
Josué Mario Andia-Vargas   +3 more
doaj   +1 more source

Gas-hydrogeochemical conditions of the Bilche-Volytsia oil-gas-bearing area (Carpathian foredeep, Ukraine)

open access: yesВісник Харківського національного університету імені В.Н. Каразіна. Серія Геологія. Географія. Екологія, 2021
Introduction. Water-dissolved gases in exploratory oil and gas hydrogeology are the fundamental criteria of oil and gas potential. Their quantitative and qualitative characteristics allow to study the conditions of formation and preservation of the ...
Vasyl Harasymchuk   +2 more
doaj   +1 more source

Engineering method for determining the sulfur of mineral impurities for the prediction of hazardous properties of coal seams

open access: yesГеофизический журнал, 2023
Purpose: develop an engineering method for determining sulfur in mineral impurities to predict the hazardous properties of mine seams in mining operations.
Ye.S. Rudniev   +4 more
doaj   +1 more source

Internal combustion [PDF]

open access: yesCanadian Anaesthetists’ Society Journal, 1963
The inflammability of intestinal gases was demonstrated by Vulparious in the seventeenth century. The main gases incriminated are methane and hydrogen and their production is increased by a leguminous diet or by excessive fermentation in cases of pyloric stenosis with gross gastric stasis.
openaire   +2 more sources

Obtención de biodiésel por transesterificación in situ a partir de semillas de Jatropha curcas L.

open access: yesRevista UIS Ingenierías, 2022
Una desventaja del uso de biodiésel es su precio, debido a los altos costos de la materia prima y al acondicionamiento del aceite requerido para obtenerlo por medio de una transesterificación tradicional, lo que le impide alcanzar precios más accesibles
Edward Enrique Gomez-Delgado   +2 more
doaj   +1 more source

Estudio de emisiones contaminantes producidas por un motor otto con el uso de gasolina y un combustible a base de 95% de gasolina y 5% de etanol

open access: yesInnova Research Journal, 2017
   El presente estudio compara las emisiones contaminantes producidas por un motor de combustión interna de 4 tiempos con el uso de dos combustibles, el primero es la gasolina común, el segundo es un combustible a base de 95% de gasolina común y 5 ...
Juan Fernando Iñiguez   +3 more
doaj   +1 more source

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