Carbon Storage
Mostrando 13-24 de 260 artigos, teses e dissertações.
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13. Storage of purified biogas (biomethane) at low pressure
ABSTRACT The global use of fossil energy sources has led to the need to develop technologies capable of mitigating its consequences. One such option is anaerobic biodigestion, which is already scientifically well-established, although the use of its main products (biogas and biomethane) still requires further development before they can be employed in automo
Braz. arch. biol. technol.. Publicado em: 22/10/2018
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14. Carbon Stocks and Pools in Relation to the Texture of Kaolinitic Soils from the Brazilian East Coast
ABSTRACT: Extremely kaolinitic soils of Tertiary age elevations on the Brazilian east coast present a wide range of texture, which is recognized as one of the main factors controlling the soil organic matter contents. This study aimed to investigate the organic C storage of different compartments of kaolinitic soils. The studied soils had a wide particle siz
Rev. Bras. Ciênc. Solo. Publicado em: 17/09/2018
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15. Synthesis of Graphene Oxide and Functionalized CNT Nanocomposites Based on Epoxy Resin
ABSTRACT Lately, nanomaterials have been largely studied as reinforcements for epoxy resin. Although their usage is highly promising, the literature has reported some drawbacks regarding the improvement of mechanical properties in nanocomposites. These difficulties are usually due to dispersion of nanomaterials and its adhesion to the polymeric matrix. One a
J. Aerosp. Technol. Manag.. Publicado em: 16/07/2018
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16. Microstructural strength of four subtropical soils evaluated by rheometry: properties, difficulties and opportunities
ABSTRACT: The structural strength of soils has been extensively described by physical and mechanical properties evaluated on the mesoscale for different soils and management conditions. However, changes in the organization of the soil matrix at the microstructural level, which can be obtained by rheometry, are still seldom used in soil mechanics. Our aim was
Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-04
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17. Vegetation structure, carbon sequestration potential and species conservation in four agroforestry systems in Cameroon (Tropical Africa)
ABSTRACT As the rate of forest degradation continues to rise, agroforestry may serve as a way of conserving species and carbon sinks. The aim of this study was to assess agrobiodiversity and carbon sequestration potential in agrosystems in Cameroon. Three age groups of agrosystems were studied. Data were collected in 100x50 m2 quadrates. Density ranged from
Acta Bot. Bras.. Publicado em: 15/01/2018
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18. Investigation of Electrocatalysts for Selective Reduction of CO2 to CO: Monitoring the Reaction Products by on line Mass Spectrometry and Gas Chromatography
The carbon dioxide electrocatalytic reduction is central for the development of regenerative cycles of electrochemical energy conversion and storage. Herein, the gaseous products of the CO2 electroreduction were monitored by using an electrochemical cell on line coupled to a differential electrochemical mass spectrometer (DEMS), aiming at searching for elect
J. Braz. Chem. Soc.. Publicado em: 2017-09
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19. Global patterns of aboveground carbon stock and sequestration in mangroves
ABSTRACT In order to contribute to understand the factors that control the provisioning of the ecosystem service of carbon storage by mangroves, data on carbon stock and sequestration in the aboveground biomass (AGB) from 73 articles were averaged and tested for the dependence on latitude, climatic parameters, physiographic types and age. Global means of car
An. Acad. Bras. Ciênc.. Publicado em: 2017-06
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20. ASSESSMENT OF CO2 EMISSION MITIGATION FOR A BRAZILIAN OIL REFINERY
Abstract Currently the oil refining sector is responsible for approximately 5% of the total Brazilian energy related CO2 emissions. Possibilities to reduce CO2 emissions and related costs at the largest Brazilian refinery have been estimated. The abatement costs related to energy saving options are negative, meaning that feasibility exists without specific i
Braz. J. Chem. Eng.. Publicado em: 2016-12
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21. Carbon and Nitrogen Stocks and Humic Fractions in Brazilian Organosols
ABSTRACT Despite limited geographic expression of Organosols in Brazil, their high carbon storage capacity and natural environmental vulnerability justifies further studies on C and N stocks in these soils and their relationship to the nature of organic matter. Evaluation of physical and chemical properties of organic soils and their ability to store C is im
Rev. Bras. Ciênc. Solo. Publicado em: 03/11/2016
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22. Effects of carbon monoxide treatment before vacuum packaging on the physical parameters and consumer evaluations of raw beef
Abstract This study examined the color changes of packaged beef due to the effects of carbon monoxide exposure before vacuum packing and storage time, as well as consumers’ evaluations of that beef. In the experiment, 400 striploin steaks (M. longissimus dorsi) were vacuum packed or after 48 hours of exposure to different concentrations of CO (0.1%, 0.3%,
Food Sci. Technol. Publicado em: 14/06/2016
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23. Correlation between degree of crystallinity, morphology and mechanical properties of PPS/carbon fiber laminates
The crystallization degree in semi-crystalline thermoplastics plays an important role in determining the final properties of structural composite material (e.g. toughness, stiffness and solvent resistance). The main purpose of this work is to study different induced degrees of crystallinity in carbon fiber (CF) reinforced polyphenylene sulfide (PPS) composit
Mat. Res.. Publicado em: 12/02/2016
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24. Effects of Adding Some Natural Substances to Biodiesel to Control its Effect on Carbon Steel Corrosion
Biodiesel consists of long-chain fatty acid esters and it presents relatively inert behavior right after its production. However, structural changes occur during its storage, as this fuel has low oxidative stability, fact that increases its corrosivity. The problem of corrosion has become increasingly relevant due to the Government's policy of setting a grad
Mat. Res.. Publicado em: 23/10/2015