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421
Adapting anaerobic consortium to pure and complex lignocellulose substrates at low temperature: kinetics evaluation
Published 2018-12-01“…Conclusions Anaerobic mixed culture can be adapted to pure and complex lignocellulosic substrates and convert them to methane at low temperature (20 °C) in relatively short time (105 days) using a sequential procedure. …”
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422
Design Improvements and Best Practices in Small-Scale Biodigesters for Sustainable Biogas Production: A Case Study in the Chillon Valley, Perú
Published 2025-01-01“…Agribusiness ranks second as the sector with the highest greenhouse gas emissions linked to methane, constituting a crucial challenge for global sustainability. …”
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423
Antimicrobial, Anti-Inflammatory, Antiparasitic, and Cytotoxic Activities of Laennecia confusa
Published 2012-01-01“…In addition, the hexane and methane extracts show anti-inflammatory activity by suppressing the secretion of interleukine-6.…”
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424
Understanding the Spatial Heterogeneity of CO2 and CH4 Fluxes from an Urban Shallow Lake: Correlations with Environmental Factors
Published 2017-01-01“…The spatial variability of carbon dioxide (CO2) and methane (CH4) fluxes across water-air interface in Xuanwu Lake was investigated in two seasons. …”
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425
Dynamic soil columns simulate Arctic redox biogeochemistry and carbon release during changes in water saturation
Published 2025-01-01“…During saturation, an outflow of dissolved organic carbon from the UC soil correlated with elevated reduced iron and decreased pH; during drainage, UC carbon dioxide fluxes were 70% higher than TC fluxes. Intermittent methane release was observed for TC, consistent with higher methanogen abundance. …”
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426
Laboratory-scale photomineralization of n-alkanes in gaseous phase by photocatalytic membranes immobilizing titanium dioxide
Published 2006-01-01“…Kinetics of photocatalytic oxidation of methane, ethane, and n-heptane, to yield intermediates, and photomineralization of intermediates, to yield carbon dioxide and water, was studied in the gaseous phase, at 308±2 K, by a laboratory-scale photoreactor and photocatalytic membranes immobilizing 30±3 wt.% of TiO2, in the presence of aerosolized stoichiometric hydrogen peroxide as oxygen donor, and at a relative humidity close to 100%. …”
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427
Behavior of eco-friendly concrete reinforced with hybrid recycled fibers
Published 2025-03-01“…The emission of greenhouse gases like methane and carbon dioxide into the atmosphere by landfills is well-known to be harmful to both people and the environment. …”
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428
Pore Structure Characteristics, Genesis, and Its Controlling Effect on Gas Migration of Quaternary Mudstone Reservoir in Qaidam Basin
Published 2022-01-01“…The shallow high abundance of gas reservoirs and high-quality pure methane have become the main production areas. The development characteristics of loose mudstone reservoirs are restricted by extreme heterogeneity. …”
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429
A Metabolic Study on Colon Cancer Using 1H Nuclear Magnetic Resonance Spectroscopy
Published 2014-01-01“…Main metabolic cycles involved were the bile acid biosynthesis, vitamin B6 metabolism, methane metabolism, and glutathione metabolism. Discussion. …”
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430
Global sensitivity analysis and uncertainty quantification for a mathematical model of dry anaerobic digestion in plug-flow reactors
Published 2024-09-01“…The study showed that the net methane production is mostly sensitive to the values of the conversion parameter related to the particulate biodegradable volatile solids in acetic acid $ k_1 $ and to the kinetic parameter describing the acetic acid uptake $ k_2 $. …”
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431
Advances and trends of modern and contemporary research on the geology of coal-measure minerals in China
Published 2025-01-01“…Advances Based on textual research and the analysis of logical relations, this study generalized the advances in research on the geology of CMMs in China into four aspects. (1) Increasingly improved geological theory system of CMMs: China’s classic theoretical system of coal field geology was formed in the second half of the 20th century, and the geological theory system focusing on coals, coal-measure gas, and coal-measure critical metals has been gradually developed since the 21st century. (2) Research on the origin and genesis of coals, advancing the international coal geology: The advancements include the development of the new coal metamorphism theory, the discovery of the world's youngest soft lignite, the reveal of late-stage coalification jumps, the establishment of the ordinary organic petrology, and the comprehensive ascertainment of the formation and evolutionary mechanisms of coals. (3) The unique CMM accumulation, distribution, and metallogenic theory: The specific outcomes include the establishment of multiple sedimentary and structural coal-controlling patterns, the reveal of the fundamental framework of coal accumulation in sea areas, the identification of deposits of various coal-measure critical metals, and the determination of the division schemes for coal-controlling geotectonic units and the metallogenic zones of coal-measure critical metals, and the development of a geological theory system for coalbed methane. (4) Significant achievements in the geological surveys and assessment of special coal resources: Specifically, the methodological system for the geological prediction and assessment of special coal types and high-quality, eco-friendly, and clean coal resources has been developed, the methodological system for the resource potential assessment of tar-rich coals and underground coal gasification has been formed, and the coal resources for related purposes have been preliminarily investigated. …”
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432
Application of Novel Amino-Functionalized NZVI@SiO2 Nanoparticles to Enhance Anaerobic Granular Sludge Removal of 2,4,6-Trichlorophenol
Published 2015-01-01“…Moreover, adding the appropriate concentration of NZVI@SiO2-NH2 in anaerobic granular sludge treatment system can decrease the toxicity of 2,4,6-TCP to anaerobic microorganisms and improved the cumulative amount of methane production and electron transport system activity. …”
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433
Study on the Spontaneous Imbibition Characteristics of the Deep Longmaxi Formation Shales of the Southern Sichuan Basin, China
Published 2021-01-01“…These results provide theoretical guiding significance for comprehending the spontaneous imbibition and pore structure evolution characteristics of deep shale and enhancing methane production in deep shale gas reservoirs.…”
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434
Bacterial diversity determination using culture-dependent and culture-independent methods
Published 2017-04-01“…Mud volcanoes are taken into consideration by geologists and oil industry experts have given their association with oil and gas reserves and methane greenhouse gas production in hydrosphere and atmosphere. …”
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435
Research on the Thermal Runaway Behavior and Flammability Limits of Sodium-Ion and Lithium-Ion Batteries
Published 2025-01-01“…During the thermal runaway of all four battery types, the primary gases produced include carbon dioxide, hydrogen, carbon monoxide, methane, ethylene, propylene, and ethane. For NCM622 and NCM523, carbon monoxide is the dominant combustible gas, with volume fractions of 35% and 29%, respectively. …”
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436
Advancing Food Security with Farmed Edible Insects: Economic, Social, and Environmental Aspects
Published 2025-01-01“…., carbon dioxide and methane). From a socioeconomic point of view, edible insects have lower production costs compared to conventional animal protein sources because of their high feed efficiency conversion, rapid growth rate, and short life cycles. …”
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437
Optimal Operation of Hydrogen Energy Coupling Integrated Energy System considering Green Certificate, Ladder-Type Carbon Joint Trading, and Dual-Incentive Demand Response
Published 2023-01-01“…First, a hydrogen energy multiuse system composed of an electrolyzer, a hydrogen fuel cell, a methane reactor, and hydrogen energy storage was constructed to make full use of the low-carbon cleaning characteristics of hydrogen energy. …”
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438
A review of design factors in steam and gas push for eco-friendly oil sands production and its field application in Canada
Published 2025-01-01“…Additionally, determining the type, concentration, and injection timing of NCG based on the given reservoir conditions can be challenging. Nitrogen and methane are commonly used NCGs due to their low solubility in oil, but concentrations above 3 mol% typically decreases SAGP efficiency. …”
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439
Enhanced CH4 emissions from global wildfires likely due to undetected small fires
Published 2025-01-01“…Abstract Monitoring methane (CH4) emissions from terrestrial ecosystems is essential for assessing the relative contributions of natural and anthropogenic factors leading to climate change and shaping global climate goals. …”
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440
Intelligent Monitoring System for Biogas Detection Based on the Internet of Things: Mohammedia, Morocco City Landfill Case
Published 2021-03-01“…During the rainy season, the average production of methane, carbon dioxide, and oxygen and nitrogen are currently 56%, 32%, and 1%, respectively, compared to 51%, 31%, and 0.8%, respectively, for old waste. …”
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