Results 1 to 10 of about 75 (53)

Análisis de los derrames de hidrocarburos procedente de buques y su gestión en el Perú

open access: yesRevista del Instituto de Investigación de la Facultad de Minas, Metalurgia y Ciencias Geográficas, 2021
Esta investigación presenta el análisis de la gestión portuaria y acuática en el Perú, sobre el control y combate de la contaminación por derrames de hidrocarburos procedente de los buques; basado en una revisión pormenorizada sobre los diversos ...
Alfonso Ramírez Caján
doaj   +1 more source

Influência do defloculante na deposição de alumina por eletroforese [PDF]

open access: yesCerâmica, 2003
A conformação de materiais cerâmicos por eletroforese é conhecida por ser de baixo custo e necessitar de pouca infra-estrutura para fabricação de recobrimentos e laminados cerâmicos.
M. V. Gelfuso   +2 more
doaj   +1 more source

Epauletted fruit bats prefer native plants and contribute to seed dispersal in a South African agricultural landscape

open access: yesAfrican Journal of Ecology, Volume 61, Issue 2, Page 399-410, June 2023., 2023
Abstract Fruit bats provide vital ecosystem services through seed dispersal aiding secondary forest regeneration. However, fruit bat species are often persecuted by fruit‐growing farmers due to perceived and actual crop damage. In this study, we investigated the dietary components of Epomophorous wahlbergi, Epomophorous crypturus and Rousettus ...
Vusani Mphethe   +6 more
wiley   +1 more source

Connectivity among thermal habitats buffers the effects of warm climate on life‐history traits and population dynamics

open access: yesJournal of Animal Ecology, Volume 91, Issue 11, Page 2301-2313, November 2022., 2022
Through its effects on movement, landscape fragmentation may influence the response of populations to climate change. This 3‐year‐long experiment on common lizards demonstrates that habitat connectivity can drastically change the impacts of warming on life‐history traits and population dynamics.
Félix Pellerin   +6 more
wiley   +1 more source

Chimpanzees as ecosystem service providers: Seed dispersal of an economically important plant resource

open access: yesBiotropica, Volume 54, Issue 3, Page 656-669, May 2022., 2022
Western chimpanzees effectively disperse the seeds of Saba senegalensis, an important uncultivated commodity and food resource for people in Senegal. They promote germination success of ditto seeds through a beneficial gut treatment of seeds and by dispersing seeds disproportionately to habitats that are conducive to seed germination.
William D. Aguado   +2 more
wiley   +1 more source

Meadowfoam seed oil as a natural dispersing agent for colorants in lipstick

open access: yesInternational Journal of Cosmetic Science, Volume 43, Issue 4, Page 484-493, August 2021., 2021
In this study, a green and sustainable oil, meadowfoam seed oil was evaluated as a pigment dispersing agent and compared to castor oil and octyldodecanol in dispersions and lipsticks. Overall, meadowfoam seed oil’s performance was qualitatively and quantitatively similar to castor oil and octyldodecanol indicating that meadowfoam seed oil is a viable ...
Briana Maktabi   +2 more
wiley   +1 more source

Coque de petróleo como dispersante en fluidos de perforación base agua

open access: yesRevista Científica y Tecnológica UPSE, 2019
Como consecuencia del proceso de conversión profunda empleado en el Complejo Petroquímico General de División José Antonio Anzoátegui- Venezuela, se obtiene actualmente un sub producto de refinación denominado coque de  petróleo, al cual se le ha dado ...
Rubén Vega Mejia   +2 more
doaj   +1 more source

Efeito do ácido esteárico em scaffolds de alumina obtidos por manufatura aditiva usando o método de fabricação por filamento fundido

open access: yesCerâmica, 2021
Resumo As cerâmicas porosas podem ser utilizadas nas mais diversas aplicações, como na indústria petroquímica e na área da saúde. No entanto, é difícil produzir cerâmicas com formas complexas usando processos convencionais.
M. Faccio   +4 more
doaj   +1 more source

Influencia de electrolitos, especies iónicas y sodio cambiable en la dispersión del suelo.

open access: yesAgronomía Mesoamericana, 2012
El objetivo del presente trabajo fue determinar el efecto dispersante de la salinidad en un suelo Gleysol petrogléyico. El estudio se efectuó en la empresa de semilla de arroz Corojal en Artemisa, Pinardel Río, Cuba, con cultivo de arroz.
Lázara María Otero-Gómez   +5 more
doaj   +3 more sources

Análisis comparativo de la eficiencia dispersora de asfaltenos de productos a base de aceite de coco (Cocus nucifera) como componente activo y dispersantes comerciales aplicados a muestras de petróleo del Campo el Furrial, Estado Monagas, Venezuela

open access: yesRevista Tecnológica, 2015
Esta investigación se basó en un análisis comparativo de la eficiencia de dispersión de asfaltenos aplicando productos químicos a base de aceite de coco (Cocus nucifera) en diesel y productos comerciales aplicados en pozos del campo El Furrial para ...
Tomás Darío Marín Velásquez
doaj   +4 more sources

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