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321
Numerical Investigation of the Effect of Equivalent Ratio on Detonation Characteristics and Performance of CH<sub>4</sub>/O<sub>2</sub> Rotating Detonation Rocket Engine
Published 2025-01-01“…In this paper, the effects of different equivalent ratios detonation characteristics and thrust performance of methane-oxygen RDRE were studied by 2D numerical simulation. …”
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322
Stan i perspektywy wykorzystania biogazu jako nośnika energii do zastosowań stacjonarnych i środków transportu
Published 2012-09-01“…Biogas is produced during the anaerobic methane fermentation process and it is known as a significant source of renewable energy, contributing to agriculture and environmental protection. …”
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323
Study on the Mechanism of Sparks Generated Mechanical Friction
Published 2022-01-01“…One of the most dangerous sources of ignition in methane-air mixtures is sparks, which are easily induced by friction and impact from light metals. …”
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324
Study on the Optimal Production Pressure of Different Types of Natural Gas Hydrate Based on Formation Stability
Published 2020-01-01“…Natural gas hydrate is an ice-like crystal formed by methane and water, which is a new type of strategic energy with huge reserves. …”
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325
The Use of Biodiesel Residues for Heat Insulating Biobased Polyurethane Foams
Published 2017-01-01“…All types of polyol blends were reacted with polymeric diphenyl methane diisocyanates (PMDI) for the production of rigid foams. …”
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326
Materials Flow Analysis as a Tool to Improve Solid Waste Management: A Case of Ankara
Published 2020-01-01“…Almost 470 thousand tonnes of it is being used for methane production and more than 400 thousand tonnes of compost is being produced each year. …”
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327
Enhanced fault detection in zig-zag transformers: Insights from dissolved gas analysis and transient current analysis
Published 2025-03-01“…Elevated hydrogen and methane levels, along with increased acetylene concentrations, indicated severe arcing and overheating, while treated oil samples showed a notable reduction in gas concentrations, underscoring the effectiveness of oil treatment in managing thermal and electrical stresses. …”
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328
HCCI Intelligent Rapid Modeling by Artificial Neural Network and Genetic Algorithm
Published 2012-01-01“…A realization function is developed on the basis of the Sandia National Laboratory chemical kinetics model, and GRI3.0 methane chemical mechanism. The inlet conditions are optimized by Genetic Algorithm (GA), so that combustion initiates and SOC timing posits in the desired crank angle. …”
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329
Tackling impurities in CCS pipelines: An optimization-based approach
Published 2025-06-01“…This study introduces an efficient optimization-based model for designing cost-optimal pipelines with a compressor-pump assembly and intermediate boosters, considering impurities such as Argon, Methane, hydrogen and Nitrogen, which impact stream density, pressure drop, and levelized transport costs (LCOCT). …”
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330
Prediction of Pollutant Emissions from Bluff-Body Stabilised Nonpremixed Flames
Published 2018-01-01“…In this study, bluff-body stabilised methane-hydrogen flames are computed using the steady laminar flamelet combustion method in conjunction with the Reynolds-averaged Navier-Stokes (RANS) approach. …”
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331
EFFECT OF CLIMATE CHANGE ON AGRICULTURAL SECTOR: EVIDENCE FROM NIGERIA
Published 2024-08-01“…The result shows that among the climate change variables, temperature (LNTEMP) has a significant positive impact on agriculture sector while rainfall has a negative and significant effect on agricultural sector. More so, methane emissions (LNMETH) exhibited an inverse relationship with agriculture sector. …”
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332
Carbon cycle and climate feedbacks under CO<sub>2</sub> and non-CO<sub>2</sub> overshoot pathways
Published 2025-02-01“…We first present a method to recalibrate methane and nitrous oxide concentrations to align with published radiative forcings, ensuring accurate model performance. …”
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333
Studies on Synthesis of Some Novel Heterocyclic Azlactone Derivatives and Imidazolinone Derivatives and their Antimicrobial Activity
Published 2005-01-01“…Further, these derivatives [1(a-j)] on condensation with 4 , 4’ - diamino diphenyl sulphone gives corresponding substituted imidazolinone - dibenzsulphone derivatives [2(a-j)], on condensation with 4 , 4’ - diamino diphenyl methane gives corresponding substituted imidazolinone - dibenzmethane derivatives [3(a-j)], on condensation with 4,4’- diamino benzanilide gives corresponding substituted imidazolinone - benzanilide derivatives [4(a-j)] and on condensation with 2 - amino pyridine gives corresponding substituted imidazolinone - pyridine derivatives [5(a-j)] respectively. …”
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334
X-Ray Computed Tomography Analysis of Sajau Coal, Berau Basin, Indonesia: 3D Imaging of Cleat and Microcleat Characteristics
Published 2015-01-01“…The presence of cleat networks/fractures in coal seam is the important point in coalbed methane prospect. The 3D X-ray computed tomography (CT) technique was performed to identify cleats characteristics in the Sajau coal seams, such as the direction of coal cleats, geometry of cleat, and cleats mineralization. …”
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335
Stability and Blowout Behavior of Jet Flames in Oblique Air Flows
Published 2012-01-01“…This study details an experiment conducted to determine the liftoff and blowout velocities of oblique-angle methane jet flames under various air coflow velocities. …”
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336
The state of the market of hydrogen raw materials in Russia and the world
Published 2024-03-01“…The article describes the most promising hydrogen production methods as the ne west renewable energy resource such as electrolysis, steam reforming of methane, coal gasification, and pyrolysis. The countries that have achieved the most significant results in scientific development and technological production of hydrogen for its further utilization have been highlighted. …”
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337
Combustion Synthesis of Fe-Incorporated SnO2 Nanoparticles Using Organometallic Precursor Combination
Published 2012-01-01“…This study focused on iron-incorporated SnO2 nanoparticles generated using an inverse coflow diffusion flame burner that supported a near-stoichiometric methane-air combustion. A liquid organometallic precursor solution of Sn(CH3)4 and Fe(CO)5 was used to produce 11–14 nm nanocrystalline particles. …”
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338
Effect of Pretreatment with Sulfuric Acid on Catalytic Hydrocracking of Fe/AC Catalysts
Published 2017-01-01“…The Fe2S3/AC-T catalyst was prepared by deposition-precipitation method and used to catalyze hydrocracking of coal-related model compound, di(1-naphthyl)methane (DNM). The properties of catalyst were studied by N2 adsorption-desorption, X-ray diffraction, and scanning electron microscopy. …”
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339
Design of Unmanned Vehicle System for Disaster Detection
Published 2015-04-01“…The gas sensors can detect methane, ethane, and carbon dioxide. After detecting the gases, the vehicle passes the collected information to the rescuer for deciding which equipment can be used in the disaster. …”
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340
Assessment of biogas-powered absorption cooling systems and biomass potential for sustainable rural development: A case study in Yenişehir, Turkiye
Published 2025-02-01“…The minimum biogas mass flow rate required is 0.0007 kg/s, utilizing biogas with a 65 % methane content. To sustain a cooling load of 10 kW annually, 63 cattle are required for biogas production. …”
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