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  • ...tap falling in water underneath, trapping a bubble of air as it falls. The natural frequency of the entrapped air bubble in the water is given by .../math> is the density of water. This formula can also be used to find the natural frequency of a bubble cloud with <math>a</math> as the radius of the cloud ...
    3 KB (469 words) - 13:01, 30 March 2024
  • ...is also called [[biomethane]]. It can be used interchangeably with natural gas. ...ements of H<sub>2</sub>S; it is not high quality enough to be used as fuel gas for machinery. The corrosive nature of H<sub>2</sub>S alone is enough to de ...
    7 KB (1,130 words) - 15:25, 8 June 2024
  • ...iency, power-to-heat ratio) should be chosen according to [[Best available technology|BAT]] or industry average. Prices refer to delivery at the system boundary ...η<sub>el</sub> = η<sub>th</sub> = 42,5 %. The emission factor for national gas is 0,2 t per MWh fuel. ...
    5 KB (717 words) - 10:11, 30 June 2024
  • ...s]] such as [[methane]], [[natural gas]] and [[biogas]] with no greenhouse gas pollution. The process was developed in the 1980s by the Norwegian engineer ...first4 = Kenneth D.|last3 = Helgesen|last4 = Knudsen|journal = Science and Technology of Advanced Materials|volume = 10|issue = 6|pmc=5074450|pmid=27877312|page= ...
    5 KB (644 words) - 14:36, 27 September 2023
  • ...of carbon oxides in a microchannel reactor—Primary screening and impact of gas additives|journal=Catalysis Today|language=en|volume=125|issue=1–2|pages=81 ...ower using [[power-to-gas]] systems in conjunction with existing [[natural gas storage]]. ...
    7 KB (995 words) - 11:13, 10 January 2022
  • ...to 210&nbsp;g/kWh and about 40% efficiency. [[Natural gas vehicle|Natural gas]] can yield an overall efficiency of about 200&nbsp;g/kWh.<ref>Rainer Gollo [[Category:Engine technology]] ...
    2 KB (330 words) - 00:20, 9 July 2024
  • ...by Means of Dynamic Headspace Extraction and Multiple Headspace Extraction-Gas Chromatography-Mass Spectrometry: Quantitative analysis of bioactive compou ...are capable of dissolving in water to some degree. The bulk of the stable natural components of the atmosphere are [[nitrogen]], [[oxygen]], [[carbon dioxide ...
    16 KB (2,196 words) - 00:13, 20 June 2023
  • ...resistance to [[corrosion]] due to gases in the atmosphere. Mixed Flowing Gas (MFG) test is a laboratory test in which the temperature (°C), relative hum ...ting.<ref>Chao, J.L. and R.R. Gore (1991). ''Evaluation of a mixed flowing gas test'', Electrical Contacts - 1991 Proceedings of the Thirty-Seventh IEEE H ...
    8 KB (1,114 words) - 02:51, 30 November 2023
  • ...ef>Bob Wilde and Jake Ormond: ''Subsea Heave Compensators'', Deep Offshore Technology 2009</ref> PHC differs from [[Active heave compensation|AHC]] by not consum ...ton rod extends it will reduce the total gas volume and hence compress the gas that in turn increases the pressure acting upon the piston. The [[compressi ...
    5 KB (808 words) - 00:53, 17 January 2024
  • ...mas. Here the electrons are much hotter (several eV) than the ions/neutral gas particles (room temperature).<ref name=":0">{{citation|surname1=Claire Tend ...carriers is used to couple in electrical power. When colliding with other gas atoms or molecules, the free electrons can transfer their energy to them an ...
    11 KB (1,629 words) - 16:18, 20 October 2024
  • ...the hydrogen economy. | journal = Reviews in Environmental Science and Bio/Technology | date = June 2009 | volume = 8 | issue = 2 | pages = 149–185 | doi =10.100 [[Phototroph|Phototropic bacteria]] produce hydrogen gas via photofermentation, where the hydrogen is sourced from organic compounds ...
    10 KB (1,208 words) - 12:19, 26 September 2024
  • ...w.uasinc.com/InfoGlossaryP.aspx |title=Glossary of Industrial Air Cleaning Technology |work=United Air Specialists, Inc |url-status=dead |archive-url=https://web ksi are not widely used for gas pressures. They are mostly used in [[materials science]], where the [[tensi ...
    8 KB (1,077 words) - 21:18, 23 December 2024
  • ...n a fluid as temperature increases, but is maximized at some point for a [[gas]].<ref name="Mixed Convection">{{cite journal|last=Joye|first=Donald D.|aut ...d convection problems are characterized by the [[Grashof number]] (for the natural convection) and the [[Reynolds number]] (for the forced convection). The re ...
    7 KB (1,091 words) - 08:38, 20 December 2024
  • ...le species is separated into its components on a stationary phase, Inverse gas chromatography uses injection of a single species to probe the characterist | image1 = Analytical Gas Chromatography A.gif ...
    13 KB (1,800 words) - 00:53, 24 December 2023
  • {{Short description|Gas centrifuge designed to enrich uranium-235}} ...now generally) the type is known by the name of the man who recreated the technology after his return to the West in 1956, based on his recollection of his work ...
    17 KB (2,490 words) - 01:07, 14 October 2024
  • ...as derived from crude oil|the hydrocarbon mixture derived from a number of natural sources|naphtha}} ...87814-280-0|edition=Second}}</ref><ref>{{cite book|title=The Chemistry and Technology of Petroleum|author=Speight|first=James G.|publisher=CRC Press|year=2006|is ...
    11 KB (1,618 words) - 01:10, 2 March 2025
  • *[[Magnetic roasting technology]] ...science/article/pii/S1383586622020676 |journal=Separation and Purification Technology |volume=305 |pages=122511 |doi=10.1016/j.seppur.2022.122511 |issn=1383-5866 ...
    17 KB (2,458 words) - 18:30, 19 December 2024
  • ...gent-divergent solid walls in a [[de Laval nozzle]], wherein a hot neutral gas is expanded first [[subsonic flight|subsonically]] and then [[supersonic]]a ...ma in a magnetic nozzle is inherently more complex than the expansion of a gas in a solid nozzle, and is the result of several intertwined phenomena, whic ...
    9 KB (1,325 words) - 11:29, 6 February 2025
  • ...l cell]], it still produces [[carbon dioxide]] (an important [[greenhouse gas]]) during operation. == Technology == ...
    27 KB (3,826 words) - 18:57, 29 August 2024
  • ...different amounts of energy depending on the efficiency of the separation technology. Separative work is measured in ''Separative work units'' SWU, kg SW, or kg For example, beginning with {{convert|102|kg}} of [[natural uranium]] (NU), it takes about 62 SWU to produce {{convert|10|kg}} of [[Enr ...
    4 KB (618 words) - 18:20, 8 October 2024
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