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Showing 1 to 20 of 29 for “"GCO"”.
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Carbon dioxide transfer in membrane oxygenators and associated membranes
… developed to assess the CO₂ transmission rate (Gco₂) through oxygenator membranes under gas-membrane-liquid contact conditions. This forms the basis for the selection of suitable membrane materials for oxygenators. Although the GCO₂ values for homogeneous silicone rubber membranes were …
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Changes in Aromatic Chemistry and Sensory Quality of Milk Due to Light Wavelength
… (GC) and gas chromatography olfactometry (GCO) was used to determine the effect of specific light wavelengths on light oxidation in milk. The most damaging wavelengths to milk quality appear to be the UV (200-400 and 395 nm) and short visible (463 nm) wavelengths. However, exposure to 610 …
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Vitruvius: ingeniería dirigida por modelos para la generación de aplicaciones basadas en sensores de vehículos interconectados
… la Gestión de Conocimiento Organizacional (GCO), de allí, que en este trabajo para comprobar la hipótesis establecida, se describirá el desarrollo de un Metamodelo de Gestión de Conocimiento que se desarrolla a través de una arquitectura funcional soportada en las redes sociales y en la …
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Qirisya: las redes sociales y la computación en la nube para el mantenimiento y prospectiva de la gestión del conocimiento en las organizaciones
… la Gestión de Conocimiento Organizacional (GCO), de allí, que en este trabajo para comprobar la hipótesis establecida, se describirá el desarrollo de un Metamodelo de Gestión de Conocimiento que se desarrolla a través de una arquitectura funcional soportada en las redes sociales y en la …
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Breaking Symmetry: A Study of Novel Phenomena in Asymmetric Nanoplasmonic Systems
… development of a generalized coupled-oscillator (GCO) model, the presence of other CO responses not related to CD. Closed-form analytic expressions for various CO response types are developed within the GCO model, and characteristics of each type are highlighted. This work both demonstrates the …
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Flavor chemistry of lemon-lime carbonated beverages
… detected by gas chromatography-olfactometry (GCO) with linalool (floral, lavender), octanal (pungent orange) and 2,3-dehydro-1,8-cineole (minty) determined to be predominant aroma compounds based on their high flavor dilution (FD) factors by aroma extract dilution analysis (AEDA). The data …
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Estimating life cycle carbon emissions of the global oil supply chain at a high-resolution using optimization in a network model
… footprint variability ranges from 1.80 to 32.92 gCO₂/MJ with a volume weighted mean of 9.73 gCO₂/MJ. This variability coupled with supply forecasts up to 2050 from low-carbon scenarios amount to additional CO₂ savings of 2-5 GT.
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Identification of key odorants in fresh-cut watermelon aroma and structure-odor relationships of cis,cis-3,6-nonadienal and ester analogs with cis,cis-3,6-nonadiene, cis-3-nonene and cis-6-nonene backbone structures
… of decreasing headspace volumes (GCO-H) with confirmation achieved by application of a complimentary method based on GCO and aroma extract dilution analysis (AEDA) of fresh-cut watermelon aroma extracts prepared by solvent-assisted flavor evaporation (SAFE). Eight unsaturated …
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Avaliação dos fatores de risco para o câncer de mama e dosagem de frações livres de DNA em mulheres atendidas na Maternidade Odete Valadares, em Belo Horizonte, Minas Gerais
… ausência de neoplasia ou doença benigna da mama (GCO). Foi avaliada a exposição a fatores de risco para o Ca mama na população, por meio de questionários e medidas antropométricas. Foram selecionadas 30 mulheres do GCA e 20 mulheres do GCO para a dosagem de FLDNA plasmático por PCR em tempo real, …
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Characterization of aroma components of raw and roasted almonds and the effect of the oxidative state of the nut on roasted flavor formation
… identified by gas chromatography-olfactometry (GCO) and aroma extract dilutions analysis (AEDA), and by GC-mass spectrometry determination of odor-activity values (OAVs). Results demonstrated the importance of lipid-derived volatile compounds such as ketones and aldehydes in raw almond aroma. …
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Identification and characterization of potent odorants in selected beet root (Beta vulgaris) products
… coupled with gas chromatography-olfactometry (GCO), as well as supported analytically by the use of gas chromatography-mass spectrometry (GC-MS). Initial analyses were performed on four different types of beets: boiled, oven-roasted, canned, and colorant. Extraction of the aroma-active …
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Cobalt core-shell nanoparticles as precursors for cobalt-based Fischer-Tropsch synthesis catalysts
… showed a cobalt-time yield of 13.64 µmolCO .gCo -1.s -1 and 4.27 µmolCO .gCo -1.s -1 and a C5+ selectivity of 47 C-% and 68 C-%, respectively. The observed difference in cobalt-time yield and selectivity between NiFe2O4@Co3O4 and ZnFe2O4@Co3O4 core-shell nanoparticles was due to a combination …
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Characterization of Fava Bean Hydrolysates for Future Use in Protein Enriched Beverages
… spectrometry, and olfactometry (SPME-GCMS, SPME-GCO) was used to identify key volatile compounds, including aldehydes (hexanal, nonanal), alcohols (1-octen-3-ol), and furans (2-pentylfuran). Hexanal was present in all samples, while 2-pentylfuran produced the most prominent peak, with green bean, …
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Assessing the role of Blue Hydrogen in the UK's Net Zero transition: integrated lifecycle, value chain and policy perspectives.
… intensities ranging from 14.85 to 13.35 gCO₂e/MJ and when scale of production is increased, there is an approximately a 10% reduction in emissions intensity. Feedstock composition significantly influences performance, as seen with a 20% refinery off-gas blend increasing emissions by 17% …
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Non-CO₂ environmental impacts of transportation fuel use and production
… salicornia cultivation. This corresponds to 222 gCO₂e/MJ, equivalent to 3890% and 247% of the lifecycle greenhouse gas (GHG) emissions of fuels derived from salicornia and crude oil, respectively. Nine LUC scenarios exhibit a cooling effect, the largest of which is for the replacement of tropical …
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Stair na Gaeilge i gContae Thiobraid Árann 1700-1901
Stair na Gaeilge i gCo. Thiobraid Árann i rith na tréimhse 1700-1901 atá á ríomhadh sa tráchtas seo. Tar éis a cúlra agus a comhthéacs a shuíomh i gCaibidil a hAon, déantar scríobhaithe an cheantair a áireamh, fara tráchtaireacht orthu, i gCaibidil a Dó. I gCaibidlí a Trí agus a Ceathair, féachtar …
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A techno-economic and environmental assessment of hydroprocessed renewable distillate fuels
… step were found to range between 10.1 and 13.0 gCO 2e per MJ of distillate fuel using an energy allocation method consistent with methods in the literature. Finally, the policy landscape for producing jet and diesel fuels from renewable oils was reviewed from the perspective of a fuel producer. …
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Aroma characterization of American rye whiskey by chemical and sensory assays
… methods for Gas Chromatography-Olfactometry (GCO) were used to identify the potent odorants in rye whiskey: Sample Dilution Analysis (SDA) – a novel, nonextractive, direct method of analyzing alcoholic distillates – and Aroma Extract Dilution Analysis (AEDA) – a widely used and well-understood …
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Active Interfaces: From Biointerfaces to Mineralization
… is 1000x more volumetrically efficient (1 kgCO₂/s/m³) than conventional CO₂ capture towers currently used on power plants (1 gCO₂/s/m³), paving the way towards smaller scale, modular CO₂ capture units that could be used on smaller point sources like cars and buildings. Finally, we design …
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Characterization of volatiles in commercial and self-prepared rum ethers and comparison with key aroma compounds of rum
… injection gas chromatography-olfactometry (GCO) in order to establish an understanding of traits common to most or all commercial rum ethers. These served as a guide when using scaled-down industrial methods for distillation of two rum ethers. In both, the feasibility was assessed of …
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