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  2. Heating pad - Wikipedia

    en.wikipedia.org/wiki/Heating_pad

    A heating pad is a pad used for warming of parts of the body in order to manage pain. Localized application of heat causes the blood vessels in that area to dilate, enhancing perfusion to the targeted tissue. Types of heating pads include electrical, chemical and hot water bottles. Specialized heating pads (mats) are also used in other settings.

  3. Flameless ration heater - Wikipedia

    en.wikipedia.org/wiki/Flameless_ration_heater

    The instructions advise that the heater should rest against a "rock or something" The flameless ration heater is issued in a plastic bag with instructions printed on it. Inside the bag is a small quantity of metallic powders, which does the actual heating. To heat a meal, the bag is first torn open, and a sealed food pouch is placed inside.

  4. Hydroponics - Wikipedia

    en.wikipedia.org/wiki/Hydroponics

    Hydroponics is a type of horticulture and a subset of hydroculture which involves growing plants, usually crops or medicinal plants, without soil, by using water-based mineral nutrient solutions in an artificial environment.

  5. Thermal relief - Wikipedia

    en.wikipedia.org/wiki/Thermal_relief

    Thermal pads can be seen in several locations on this printed circuit board (PCB), in particular, the bottom pad of the three vertical pads in the top left corner. A thermal relief pad, thermal pad or simply thermal, is a printed circuit board (PCB) pad connected to a copper pour using a thermal connection. It looks like a normal pad with ...

  6. Thermally conductive pad - Wikipedia

    en.wikipedia.org/wiki/Thermally_conductive_pad

    In computing and electronics, thermal pads (also called thermally conductive pad or thermal interface pad) are pre-formed rectangles of solid material (often paraffin wax or silicone based) commonly found on the underside of heatsinks to aid the conduction of heat away from the component being cooled (such as a CPU or another chip) and into the heatsink (usually made from aluminium or copper).

  7. Enrichment culture - Wikipedia

    en.wikipedia.org/wiki/Enrichment_culture

    Enrichment culture is the use of certain growth media to favor the growth of a particular microorganism over others, enriching a sample for the microorganism of interest. . This is generally done by introducing nutrients or environmental conditions that only allow the growth of an organism of inte

  8. Free-air concentration enrichment - Wikipedia

    en.wikipedia.org/wiki/Free-air_concentration...

    Free-Air Carbon dioxide Enrichment (FACE) is a method used by ecologists and plant biologists that raises the concentration of CO 2 in a specified area and allows the response of plant growth to be measured.

  9. Isotopically pure diamond - Wikipedia

    en.wikipedia.org/wiki/Isotopically_pure_diamond

    The 12 C isotopically pure, (or in practice 15-fold enrichment of isotopic number, 12 over 13 for carbon) diamond gives a 50% higher thermal conductivity than the already high value of 900-2000 W/(m·K) for a normal diamond, which contains the natural isotopic mixture of 98.9% 12 C and 1.1% 13 C.