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  2. Instrumentation in petrochemical industries - Wikipedia

    en.wikipedia.org/wiki/Instrumentation_in...

    For air-operated control valves, electrical signals from the control system are converted to an air pressure for the valve actuator in a current/pneumatic I/P converter. Upon loss of pneumatic or hydraulic pressure valves may fail to an open (FO) or fail to a closed (FC) position. Some instrumentation is self actuating.

  3. List of spacewalks 2015–2024 - Wikipedia

    en.wikipedia.org/wiki/List_of_spacewalks_2015–2024

    The second in a series of four spacewalks to repair the AMS. Parmitano and Morgan cut fluid lines and installed a vent on the AMS Experiment to prep the old cooling pump for removal on the third spacewalk. Parmitano and Morgan also routed cables and installed a new power supply to power the pumps when they are installed on the third spacewalk. [41]

  4. List of abbreviations in oil and gas exploration and production

    en.wikipedia.org/wiki/List_of_abbreviations_in...

    LCR – local control room; LCV – level control valve; L/D – lay down (such as tubing or rods) LD – lay down (such as tubing or rods) LDAR – leak detection and repair; LDHI – low-dosage hydrate inhibitor; LDL – litho density log; LDS – leak detection system (pipeline monitoring) LDTEP – LDT EPT gamma ray log; LEAKL – leak ...

  5. Safety instrumented system - Wikipedia

    en.wikipedia.org/wiki/Safety_instrumented_system

    An SIS is intended to perform specific control functions to prevent unsafe process operations when unacceptable or dangerous conditions occur. Because of its criticality, safety instrumented systems must be independent from all other control systems that control the same equipment, in order to ensure SIS functionality is not compromised.

  6. Control panel (engineering) - Wikipedia

    en.wikipedia.org/wiki/Control_panel_(engineering)

    A control panel is a flat, often vertical, area where control or monitoring instruments are displayed or it is an enclosed unit that is the part of a system [1] that users can access, such as the control panel of a security system (also called control unit).

  7. Macy's lists 66 'underproductive' stores set for closure ...

    www.aol.com/macys-lists-66-underproductive...

    Macy's has named 66 of the 150 stores that it's planning to close as part of its revitalization plan.. The retailer announced back in February 2024 plans to shut down 150 "underproductive" Macy's ...

  8. BJ's Restaurants Taps Panera Bread Founder For Growth: Details

    www.aol.com/bjs-restaurants-taps-panera-bread...

    BJ’s Restaurants, Inc. (NASDAQ:BJRI) has announced a new cooperation agreement with Act III Holdings and affiliates of Ronald M. Shaich, a prominent restaurant industry figure. Act III, led by ...

  9. List of IEC standards - Wikipedia

    en.wikipedia.org/wiki/List_of_IEC_standards

    IEC 62351 Power System Control and Associated Communications – Data and Communication Security; IEC 62353 Medical electrical equipment – Recurrent test and test after repair of medical electrical equipment; IEC/TR 62357 Power system control and associated communications – Reference architecture for object models, services and protocols