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  2. Pulse tube refrigerator - Wikipedia

    en.wikipedia.org/wiki/Pulse_tube_refrigerator

    The performance of the cooler is determined mainly by the quality of the regenerator. It has to satisfy conflicting requirements: it must have a low flow resistance (so it must be short with wide channels), but the heat exchange should also be good (so it must be long with narrow channels). The material must have a large heat capacity.

  3. Miami International Holdings - Wikipedia

    en.wikipedia.org/wiki/Miami_International_Holdings

    MIH also has a subsidiary, Miami International Technologies, which is focused on the sale and licensing of trading technology developed by MIAX Exchange Group. [ 1 ] The firm is also the owner of LedgerX, the first-ever approved exchange and clearinghouse for derivatives contracts in digital currencies in the U.S. [ 2 ]

  4. Michael Petach - Wikipedia

    en.wikipedia.org/wiki/Michael_Petach

    Michael Petach (December 30, 1959 – June 25, 2024) was an American engineer who made contributions in the fields of cryogenics and thermoacoustics in developing systems for space applications. He worked as an engineer for Northrop Grumman. His notable work revolved around developing cryocoolers and the traveling-wave thermoacoustic electric ...

  5. List of S&P 400 companies - Wikipedia

    en.wikipedia.org/wiki/List_of_S&P_400_companies

    S&P 500 constituent Avago Technologies Ltd. (NASD:AVGO) acquired Broadcom. S&P MidCap 400 constituent Federal Realty Investment Trust (NYSE:FRT) replaced Broadcom Corp. (NASD:BRCM) in the S&P 500. [274] January 27, 2016: POOL: Pool Corporation: BMR: BioMed Realty Trust: Private equity firm Blackstone Real Estate Partners acquired BioMed Realty ...

  6. Mid-Infrared Instrument - Wikipedia

    en.wikipedia.org/wiki/Mid-Infrared_Instrument

    To allow mid-infrared observations within the JWST, the MIRI instrument has an additional cooling system. It works roughly similar to how most refrigerators or an air-conditioner works: a fluid is brought down to a cold temperature in the warm section, and sent back to the cold section where it absorbs heat, then it goes back to the condenser.

  7. Cryogenics - Wikipedia

    en.wikipedia.org/wiki/Cryogenics

    Nitrogen is a liquid under −195.8 °C (77.3 K).. In physics, cryogenics is the production and behaviour of materials at very low temperatures.. The 13th International Institute of Refrigeration's (IIR) International Congress of Refrigeration (held in Washington DC in 1971) endorsed a universal definition of "cryogenics" and "cryogenic" by accepting a threshold of 120 K (−153 °C) to ...

  8. TMX Group - Wikipedia

    en.wikipedia.org/wiki/TMX_Group

    The new index was licensed by S&P Dow Jones Indices to Guggenheim Investments for an Exchange Traded Fund listed on the New York Stock Exchange. [ 14 ] On February 12, 2014, TSX Venture Exchange announced the 2014 TSX Venture 50, an annual ranking of strong performing companies from five sectors: Clean Technology, Diversified Industries, Mining ...

  9. Euronext - Wikipedia

    en.wikipedia.org/wiki/Euronext

    Euronext N.V. (short for European New Exchange Technology) [6] is a European bourse that provides trading and post-trade services for a range of financial instruments. Traded assets include regulated equities , exchange-traded funds (ETF), warrants and certificates, bonds , derivatives , commodities , foreign exchange as well as indices .