Showing 441 - 460 results of 654 for search '"methane"', query time: 0.04s Refine Results
  1. 441

    Study on the Optimal Production Pressure of Different Types of Natural Gas Hydrate Based on Formation Stability by Ting Sun, Yuan Chen, Jin Yang, Qingping Li, Weixin Pang

    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. …”
    Get full text
    Article
  2. 442

    The Use of Biodiesel Residues for Heat Insulating Biobased Polyurethane Foams by Nihan Özveren, M. Özgür Seydibeyoğlu

    Published 2017-01-01
    “…All types of polyol blends were reacted with polymeric diphenyl methane diisocyanates (PMDI) for the production of rigid foams. …”
    Get full text
    Article
  3. 443

    Materials Flow Analysis as a Tool to Improve Solid Waste Management: A Case of Ankara by Nesli Aydın

    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. …”
    Get full text
    Article
  4. 444

    Method for weak zones location at the coal-bed – host rock joint relative to the problem of sudden outbursts: theory and laboratory experiment by Larisa A Nazarova, Leonid Nazarov

    Published 2022-12-01
    “… Within the framework of a geomechanical model that describes the deformation of a rock mass during the subhorizontal coal-bed extraction, the mechanism for the formation and implementation of a sudden outburst is substantiated: as working face gets close to the weak zone of coal-bed – host rock joint, areas of tensile stresses arise, which creates the prerequisites for face space spalling and coal loss with methane. The inverse problem of determining the conditions at the horizontal boundaries of a coal-bed is formulated and solved using tomography data (longitudinal wave velocity V distribution) and the empirical dependence of V on the mean normal stress σ. …”
    Get full text
    Article
  5. 445

    High-Accuracy PVT Relationships for Compressed Fluids and Their Application to BET-like Modelling of CO and CH Adsorption by Janina Milewska-Duda, Jan Tadeusz Duda

    Published 2007-10-01
    “…Application of the formulae to the analysis of methane and carbon dioxide adsorption onto an active carbon is discussed.…”
    Get full text
    Article
  6. 446

    Enhanced fault detection in zig-zag transformers: Insights from dissolved gas analysis and transient current analysis by Ricardo Manuel Arias Velásquez, Renato Fabricio Arias Velásquez

    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. …”
    Get full text
    Article
  7. 447

    HCCI Intelligent Rapid Modeling by Artificial Neural Network and Genetic Algorithm by AbdoulAhad Validi, Jyh-Yuan Chen, Akbar Ghafourian

    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. …”
    Get full text
    Article
  8. 448

    Tackling impurities in CCS pipelines: An optimization-based approach by Mohamed Mazhar Laljee, Ahmed AlHajaj

    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). …”
    Get full text
    Article
  9. 449

    Prediction of Pollutant Emissions from Bluff-Body Stabilised Nonpremixed Flames by Nelu Munteanu, Shokri M. Amzaini

    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. …”
    Get full text
    Article
  10. 450

    EFFECT OF CLIMATE CHANGE ON AGRICULTURAL SECTOR: EVIDENCE FROM NIGERIA by IME OKON UTUK, ANIEFIOK BENEDICT UDO, BONIFACE LINUS AKPAN, EDEDET BASSEY EDUNO, INIGBEHE MICHAEL OKON

    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. …”
    Get full text
    Article
  11. 451

    Carbon cycle and climate feedbacks under CO<sub>2</sub> and non-CO<sub>2</sub> overshoot pathways by I. Melnikova, I. Melnikova, P. Ciais, K. Tanaka, K. Tanaka, H. Shiogama, K. Tachiiri, K. Tachiiri, T. Yokohata, O. Boucher

    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. …”
    Get full text
    Article
  12. 452

    Studies on Synthesis of Some Novel Heterocyclic Azlactone Derivatives and Imidazolinone Derivatives and their Antimicrobial Activity by Rakesh N. Mistry, K. R. Desai

    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. …”
    Get full text
    Article
  13. 453

    X-Ray Computed Tomography Analysis of Sajau Coal, Berau Basin, Indonesia: 3D Imaging of Cleat and Microcleat Characteristics by Ahmad Helman Hamdani

    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. …”
    Get full text
    Article
  14. 454

    Stability and Blowout Behavior of Jet Flames in Oblique Air Flows by Jonathan N. Gomes, James D. Kribs, Kevin M. Lyons

    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. …”
    Get full text
    Article
  15. 455

    The state of the market of hydrogen raw materials in Russia and the world by V. Yu. Linnik, O. V. Baykova, E. D. Falyakhova

    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. …”
    Get full text
    Article
  16. 456

    Calculation of Heat of Adsorption of Gases and Refrigerants on Activated Carbons from Direct Measurements Fitted to the Dubinin–Astakhov Equation by Kandadai Srinivasan, Pradip Dutta, Kim Choon Ng, Bidyut Baran Saha

    Published 2012-07-01
    “…The heat of adsorption of methane, ethane, carbon dioxide, R-507a and R-134a on several specimens of microporous activated carbons is derived from experimental adsorption data fitted to the Dubinin–Astakhov equation. …”
    Get full text
    Article
  17. 457

    Combustion Synthesis of Fe-Incorporated SnO2 Nanoparticles Using Organometallic Precursor Combination by Thomas K. Barkley, Jenna E. Vastano, James R. Applegate, Smitesh D. Bakrania

    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. …”
    Get full text
    Article
  18. 458

    Effect of Pretreatment with Sulfuric Acid on Catalytic Hydrocracking of Fe/AC Catalysts by Ruiyu Wang, Fei Wang, Ling Liu

    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. …”
    Get full text
    Article
  19. 459

    Design of Unmanned Vehicle System for Disaster Detection by Ming-Chih Chen, Chien-Hsing Chen, Ming-Sheng Huang, Jheng-Yu Ciou, Guo-Tai Zhang

    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. …”
    Get full text
    Article
  20. 460

    Assessment of biogas-powered absorption cooling systems and biomass potential for sustainable rural development: A case study in Yenişehir, Turkiye by Kenan Saka, Mehmet F. Orhan

    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. …”
    Get full text
    Article