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621
Life cycle greenhouse gas emissions of hydrogen imported by maritime transportation: A South Korean case study
Published 2025-04-01“…This study compares five hydrogen production processes–coal gasification, natural gas steam methane reforming, grid electrolysis, renewable electrolysis, and nuclear electrolysis–and two hydrogen-import processes using liquid hydrogen and ammonia. …”
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622
Effects of Different Technological Forms of the Perilla frutescens in the Diet on Ruminal Fermentation, Milk and Plasma Fatty Acid Composition, Ruminal Biohydrogenation and Milk Qu...
Published 2024-11-01“…Perilla oil supplementation in different forms to the diet did not affect ruminal pH, VFA and methane production. Perilla oil supplementation in different forms to the diet did not also affect the concentration of blood serum glucose, cholesterol and non‐esterified fatty acids. …”
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623
The carbon footprint of pasture-based buffalo milk production in Colombia
Published 2023-11-01“…These greenhouse gas emissions encompassed methane (CH4) from enteric fermentation and excretions left in paddocks, nitrous oxide (N 2 O) from excretions deposited on pastures and fertilizer application, and carbon dioxide (CO2 ) from lime and urea application, as well as the burning of fossil fuels. …”
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624
Advanced perspective on heavily phosphorus-doped diamond layers via optical emission spectroscopy
Published 2025-01-01“…In this study, optical emission spectroscopy (OES) was used to correlate the emission intensity ratio of PH to CH radicals (IPH/ICH) with phosphorus concentration ([P]) in diamond layers synthesized under varying phosphine ([PH3]/[H2]) and methane ([CH4]/[H2]) concentrations using microwave plasma-enhanced chemical vapor deposition. …”
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625
Concentrated Solar Power and Photovoltaic Systems: A New Approach to Boost Sustainable Energy for All (Se4all) in Rwanda
Published 2021-01-01“…Although Rwanda has natural energy resources (e.g., hydro, solar, and methane gas, etc.), the country currently has an installed electricity generation capacity of only 226.7 MW from its 45 power plants for a population of about 13 million in 2021. …”
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626
Low-Cost LoRa-Based System for Continuous GHGs Monitoring in Cattle: Enhancing Agricultural Sustainability
Published 2025-01-01“…This study introduces and validates a low-cost, LoRa based system for the continuous monitoring of methane (CH4) and carbon dioxide (CO2) emissions in cattle. …”
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627
Influence of minor hydrocarbon seepage on sulfur cycling in marine subsurface sediments
Published 2025-02-01“…Metagenomic and metatranscriptomic data indicated metabolic potential and activity towards sulfate reduction and anaerobic oxidation of methane (AOM). Expression of functional marker genes (<i>aprAB</i>, <i>dsrAB</i>, <i>mcrA</i>) revealed metabolic activities by sulfate-reducing Desulfobacterota and methanotrophic ANME-1 archaea sustained by HC traces in the sediment. …”
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628
Optomechanical energy enhanced BF-QEPAS for fast and sensitive gas sensing
Published 2025-02-01“…Experimental results using methane reveal a detection limit of 2.17 ppm with a rapid response time of 33 ms. …”
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629
Seasonal carbon fluxes from vegetation and soil in a Mediterranean non-tidal salt marsh
Published 2025-01-01“…Soil <span class="inline-formula">CO<sub>2</sub></span> and methane (<span class="inline-formula">CH<sub>4</sub></span>) fluxes from these habitats were also measured. …”
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630
Degenerated vision, altered lipid metabolism, and expanded chemoreceptor repertoires enable Lindaspio polybranchiata to thrive in deep-sea cold seeps
Published 2025-01-01“…Abstract Background Lindaspio polybranchiata, a member of the Spionidae family, has been reported at the Lingshui Cold Seep, where it formed a dense population around this nascent methane vent. We sequenced and assembled the genome of L. polybranchiata and performed comparative genomic analyses to investigate the genetic basis of adaptation to the deep sea. …”
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631
Development of new powdery mildew resistant lines in garden pea (Pisum sativum L.) using induced mutagenesis and validation of resistance for the er1 and er2 gene through molecular...
Published 2025-01-01“…The efforts were made to develop PM-resistant mutants of popular pea varieties “Lincoln” and “Azad P-1” through induced mutations by following gamma irradiation (300, 400, 500, and 600 Gy) and chemical mutagenesis, i.e., ethyl methane sulfonate (EMS) (0.3% and 0.4%). The screening of 13,868 M2 progenies at Kukumseri (summer season) followed by M3 generation at Palampur (winter season) resulted in the isolation of six putative PM-resistant mutants. …”
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632
Formation of the Figge Maar Seafloor Crater During the 1964 B1 Blowout in the German North Sea
Published 2022-12-01“…Hydroacoustic and geochemical data indicate that the Figge Maar nowadays emits primarily biogenic methane, predominantly during low tide. The formation of Figge Maar illustrates hazards related to the formation of secondary fluid pathways, which can bypass safety measures at the wellhead and are thus difficult to control.…”
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633
Utilization of biomass ash generated from combined heat and power generation system as a multi-nutrient source for crops
Published 2025-01-01“…Thus, by integrating this method into modern agricultural production systems, it is possible to obtain plant health tonic and reducing landfill waste and methane emissions from decomposing organic matter and enhance soil health and agricultural productivity sustainably. …”
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634
Building resilient cattle through better management of buffalo health
Published 2023-11-01“…The most effective way to stop it is to reduce methane, but it is not the only way. This refers to producing food through more sustainable, friendly models, less dependent on external inputs, with low energy consumption and reduced GHG emissions, but at the same time with better yields (productive and reproductive) and high efficiency. …”
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635
Effects of converting cropland to grassland on greenhouse gas emissions from peat and organic-rich soils in temperate and boreal climates: a systematic review
Published 2025-01-01“…No significant differences in carbon dioxide (CO2) or methane (CH4) emissions were found. Emissions of nitrous oxide (N2O) from grasslands were found to be 7.55 kg ha−1 y−1 lower than from cropland, however the sensitivity analysis showed that the difference was not robust, making it uncertain whether conversion from cropland to grassland has a significant effect on N2O emissions from organic soils. …”
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636
Effect of practicing water-saving irrigation on greenhouse gas emissions and crop productivity: A global meta-analysis
Published 2025-03-01“…The results showed that WSI significantly alleviated the agricultural greenhouse effect by reducing carbon dioxide (CO2) emission (ln RR = −0.084, 95 %CI: −0.139 to −0.028) and methane (CH4) emissions (ln RR = −0.551, 95 %CI: −0.640 to −0.462). …”
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637
Reductive acetogenesis is a dominant process in the ruminant hindgut
Published 2025-01-01“…Conclusions These findings highlight an enrichment of acetogenesis in a key region of the gastrointestinal tract and reshape our understanding of ruminant hydrogen metabolism and how the H2 can be managed in accord to livestock methane mitigation efforts. Video Abstract…”
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638
Comment prendre en compte les mobilités saisonnières du bétail dans l’estimation de la charge animale d’un territoire sud-sahélien ?
Published 2024-12-01“…Objectif : Notre étude visait à quantifier le cheptel présent au cours d’un cycle annuel sur le territoire de Dantchandou au Niger afin d’estimer les besoins en fourrages, les impacts sur les ressources disponibles, les flux de matière organique et les émissions de méthane entérique. Méthodes : Le cheptel communal a été dénombré sur une année par espèce, sexe et classe d’âge. …”
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639
Synthesis, Characterization, and Cytotoxic Activity of New Lanthanum(III) Complexes of Bis-Coumarins
Published 2006-01-01“…<p>Complexes of lanthanum(III) with bis-coumarins: 3,<mml:math alttext="$3'$"> <mml:msup> <mml:mn>3</mml:mn> <mml:mo>′</mml:mo> </mml:msup> </mml:math>-benzylidene-bis(4-hydroxy-2H-1-benzopyran-2-one) (<mml:math alttext="$chem{H_{2}}$"> <mml:msub> <mml:mtext>H</mml:mtext> <mml:mn>2</mml:mn> </mml:msub> </mml:math>L1) and bis(4-hydroxy-2-oxo-2H-chromen-3-yl)-(1H-pyrazol-3-yl)-methane (<mml:math alttext="$chem{H_{2}}$"> <mml:msub> <mml:mtext>H</mml:mtext> <mml:mn>2</mml:mn> </mml:msub> </mml:math>L2) were synthesized by reaction of lanthanum(III) salt and the ligands, in amounts equal to metal : ligand molar ratio of <mml:math alttext="$1 : 2$"> <mml:mn>1</mml:mn><mml:mo>:</mml:mo><mml:mn>2</mml:mn> </mml:math>. …”
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640
Fracture-seepage characteristic zones of the overburden of extra-thick coal seams: Evolutionary patterns and their engineering applications
Published 2025-01-01“…The mining along the mining face yielded methane volume fractions of less than 1%, suggesting encouraging effects in the engineering practice. …”
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