Results 81 to 90 of about 7,348 (171)

Primera aproximación a la fauna flebotomínea (Psychodidae: Phlebotominae) del departamento de Atlántico

open access: yesActa Biológica Colombiana, 2020
Dentro del género Lutzomyiaalgunas especies son vectores de la enfermedad llamada leishmaniasis, la cual tiene implicaciones en la salud pública, desarrollando diferentes manifestaciones clínicas como leishmaniasis cutánea, visceral y mucocutánea que ...
Loraine Carolina Goenaga Mafud   +2 more
doaj   +1 more source

Estudio de resvestimientos con morteros modificados de sulfato calcico contra fuegos de alta intensidad para conducciones de tuberías en la industria petroquimica

open access: yes, 2017
En la actualidad, la industria petroquimica representa uno de los mayores sectores economicos  a nivel internacional. Desde, hace mucho tiempo se viene investigando en medios y medidas para la proteccion contra incendios en edificaciones, tanto de forma ...
L. Jara
semanticscholar   +1 more source

Aspectos concorrenciais da indústria petroquímica brasileira [PDF]

open access: yes, 2010
A indústria petroquímica passou por um importante movimento de reestruturação a nível mundial a partir da década de 1980. No Brasil, este movimento foi retardado O trabalho procura identificar os principais aspectos concorrenciais da indústria ...
Pontes, Pedro Henrique de Aguiar
core  

Desafios da petroquímica brasileira no cenário global [PDF]

open access: yes, 2009
Bibliografia: p. 355-358Enquanto no passado a liderança petroquímica mundial era determinada pelo estágio de desenvolvimento econômico dos países, a volatilidade de preços do petróleo e previsões de insuficiência de matérias-primas parecem imprimir ...
Bastos, Valéria Delgado
core   +1 more source

Catalytic Oxidation Reactions for Environmental Applications: Review Article

open access: yesReactions
Catalytic oxidation is one of the most effective technologies for controlling atmospheric pollutants like carbon monoxide (CO), volatile organic compounds (VOCs), and diesel soot.
Sabrina Antonela Leonardi   +3 more
doaj   +1 more source

Electrochemical nitrate reduction on boron-doped diamond cathodes in a single-compartment cell for selectivity control and nitrite suppression

open access: yesDiscover Catalysis
Nitrate contamination in water sources poses significant environmental and public health concerns, motivating the development of selective electrochemical remediation strategies.
Thiago Favarini Beltrame   +4 more
doaj   +1 more source

Resins-supported Cu catalysts for the Fenton-like oxidation of phenol from water

open access: yesDesalination and Water Treatment
In recent years, there has been a growing interest in removing emerging contaminants from water, with advanced oxidation processes, such as Fenton oxidation using iron, being commonly explored.
Fabio D. Battauz   +3 more
doaj   +1 more source

Historia de la destilación

open access: yesEducación Química, 2018
La operación unitaria de destilación es una de las más empleadas en la industria química, petroquímica, alimentaria, farmacéutica y perfumera, para la separación de los componentes que forman mezclas líquidas miscibles.
Antonio Valiente Barderas
doaj   +1 more source

Transition metal oxide nanocatalysts for the deoxygenation of palm oil to green diesel

open access: yesFrontiers in Chemical Engineering
This study investigated the hydrodeoxygenation of palm oil by different oxide nanocatalysts of transition metals α -Fe2O3, NiO, and NiFe2O4, which were synthesized by hot injection.
C. E. Guerrero-Corona   +5 more
doaj   +1 more source

A Laboratory-Scale Moving-Bed Biomass Gasifier with Controlled Solid Displacement: Design and Performance Evaluation

open access: yesEnergies
This study reports on the design, construction, and operation of a laboratory-scale biomass gasification reactor, together with the procedures used to define and evaluate key operational and performance variables, including piston velocity, nominal ...
Paula Saires   +2 more
doaj   +1 more source

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