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  2. Soil gas - Wikipedia

    en.wikipedia.org/wiki/Soil_gas

    Soil gas migration, specifically that of hydrocarbon species with one to five carbons, can also be caused by microseepage. [ 6 ] The soil atmosphere's variable composition and constant motion can be attributed to chemical processes such as diffusion, decomposition , and, in some regions of the world, thawing , among other processes.

  3. Biogas - Wikipedia

    en.wikipedia.org/wiki/Biogas

    Gas-grid injection is the injection of biogas into the methane grid (natural gas grid). Until the breakthrough of micro combined heat and power two-thirds of all the ...

  4. Natural gas - Wikipedia

    en.wikipedia.org/wiki/Natural_gas

    Natural gas burning on a gas stove Burning of natural gas coming out of the ground. Natural gas (also called fossil gas, methane gas, or simply gas) is a naturally occurring mixture of gaseous hydrocarbons consisting primarily of methane (95%) [1] in addition to various smaller amounts of other higher alkanes.

  5. Plant stem - Wikipedia

    en.wikipedia.org/wiki/Plant_stem

    The outside of the stem is covered with an epidermis, which is covered by a waterproof cuticle. The epidermis also may contain stomata for gas exchange and multicellular stem hairs called trichomes. A cortex consisting of hypodermis (collenchyma cells) and endodermis (starch containing cells) is present above the pericycle and vascular bundles.

  6. Mycosphaerella - Wikipedia

    en.wikipedia.org/wiki/Mycosphaerella

    Mycosphaerella is a genus of ascomycota.With more than 10,000 species, it is the largest genus of plant pathogen fungi.. The following introduction about the fungal genus Mycosphaerella is copied (with permission) from the dissertation of W. Quaedvlieg (named: Re-evaluating Mycosphaerella and allied genera).

  7. Fermi gas - Wikipedia

    en.wikipedia.org/wiki/Fermi_gas

    A Fermi gas is an idealized model, an ensemble of many non-interacting fermions.Fermions are particles that obey Fermi–Dirac statistics, like electrons, protons, and neutrons, and, in general, particles with half-integer spin.

  8. Ebenales - Wikipedia

    en.wikipedia.org/wiki/Ebenales

    Diospyros lotus. Ebenales is an order of flowering plants. [1] This order was recognized in several systems, for example the Bentham & Hooker system and the Engler system, although the Wettstein system preferred the name Diospyrales'.

  9. Gasification - Wikipedia

    en.wikipedia.org/wiki/Gasification

    The resulting syngas can be combusted. Alternatively, if the syngas is clean enough, it may be used for power production in gas engines, gas turbines or even fuel cells, or converted efficiently to dimethyl ether (DME) by methanol dehydration, methane via the Sabatier reaction, or diesel-like synthetic fuel via the Fischer–Tropsch process. In ...