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What Do Gases in the Large Intestine Have to Do with Health?
Published 2025-02-01“…The gases consist of nitrogen, oxygen, carbon dioxide, hydrogen, and methane, with carbon dioxide and hydrogen being the most abundant. …”
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162
Assessment of Air Quality and Noise around Okrika Communities, Rivers State, Nigeria
Published 2013-07-01“…The parameters measured were suspended particulate matter, nitrogen dioxide, sulphur dioxide, hydrogen sulphide, ammonia, carbon monoxide, methane and volatile organic carbon, temperature, wind speed, wind direction and relative humidity. …”
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163
Nitrogen-doped Biomass Carbon Coupled with Copper Oxide Materials for Electrocatalytic Reduction of CO2
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Structural evolution characteristics of sulfur in coal during gold-tube thermal simulation
Published 2025-04-01“…When Easy%Ro ≥ 3.64, the organic sulfur content in coal significantly promotes methane generation. At Easy%Ro = 1.75, small molecules of free organic sulfur are most abundant in coal. …”
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166
Management of a Female Patient with Irritable Bowel Syndrome and Somatoform Disorder
Published 2023-02-01“…No abnormal changes were detected in examination at the clinic (complete blood count, serum chemistry tests, urinalysis or fecal tests, hydrogen and methane breath tests with lactulose, abdominal ultrasound, esophagogastroduodenoscopy, colonoscopy). …”
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167
Techno-economic assessment of hydrogen application in cereal crop farming
Published 2025-02-01“…These figures remain significantly higher than those for diesel and alternative fuels such as methane, FAME, and HVO. The study also assessed strategies for reducing hydrogen production costs using low-cost electricity and maximizing plant efficiency by increasing the electrolyser utilization rate to 70%. …”
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168
Single-Cell protein for feed and food
Published 2025-01-01“…Among these, methanotropic bacteria such as Methylococcus sp. and Methyocystis sp. can provide protein from methane as their sole carbon and energy source. Oleaginous yeasts like Yarrowia lipolytica are gaining attention in animal nutrition, particularly chicken and aquaculture, since they not only contain protein but also lipids. …”
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169
Piezoelectric characteristics of coal rock leakage under uniaxial compression
Published 2025-02-01“…This study offers a method for monitoring coal rock leakage, contributing valuable insights for efficient coalbed methane extraction and timely safety alerts.…”
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170
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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Modulating the sulfurization procedure to decrease by-product formation for one-step catalytic synthesis of sulfur-containing chemicals
Published 2025-04-01“…Otherwise, the strong bonding of Mo-S(O) bond with CO molecule over K-decorated 2H-MoS2 phase can lead to the breakage of CO bond, promoting the formation of CHx species and the occurrence of methanation side reaction. This strategy could provide the useful guidance for the fine regulation of the main and side reaction pathway for producing important chemicals from carbon and sulfur basic materials.…”
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172
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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173
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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Unraveling the depth-dependent causal dynamics of methanogenesis and methanotrophy in a high-latitude fen peatland
Published 2025-01-01“…The dynamics of methane (CH _4 ) cycling in high-latitude peatlands through different pathways of methanogenesis and methanotrophy are still poorly understood due to the spatiotemporal complexity of microbial activities and biogeochemical processes. …”
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176
Maternal environmental enrichment affects the corpora lutea and progesterone levels in pregnant mice
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177
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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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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