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  2. Thermodynamic system - Wikipedia

    en.wikipedia.org/wiki/Thermodynamic_system

    Properties of isolated, closed, and open thermodynamic systems in exchanging energy and matter. A thermodynamic system is a body of matter and/or radiation separate from its surroundings that can be studied using the laws of thermodynamics.

  3. Open system (systems theory) - Wikipedia

    en.wikipedia.org/wiki/Open_system_(systems_theory)

    Open systems have input and output flows, representing exchanges of matter, energy or information with its surroundings. An open system is a system that has external interactions. Such interactions can take the form of information, energy, or material transfers into or out of the system boundary, depending on the discipline which defines the ...

  4. Closed system - Wikipedia

    en.wikipedia.org/wiki/Closed_system

    A closed system is a natural physical system that does not allow transfer of matter in or out of the system, although – in the contexts of physics, chemistry, engineering, etc. – the transfer of energy (e.g. as work or heat) is allowed.

  5. Isolated system - Wikipedia

    en.wikipedia.org/wiki/Isolated_system

    Properties of Isolated, closed, and open systems in exchanging energy and matter. In physical science, an isolated system is either of the following: a physical system so far removed from other systems that it does not interact with them. a thermodynamic system enclosed by rigid immovable walls through which neither mass nor energy can pass.

  6. Open system - Wikipedia

    en.wikipedia.org/wiki/Open_system

    Open system (control theory), a feedforward system that does not have any feedback loop to control its output in a control system; Open system, in management science a system that is capable of self-maintenance on the basis of throughput of resources from the environment; Open system of learning, where information is sourced from multiple sources

  7. First law of thermodynamics - Wikipedia

    en.wikipedia.org/wiki/First_law_of_thermodynamics

    For the first law of thermodynamics, there is no trivial passage of physical conception from the closed system view to an open system view. [68] [69] For closed systems, the concepts of an adiabatic enclosure and of an adiabatic wall are fundamental. Matter and internal energy cannot permeate or penetrate such a wall. For an open system, there ...

  8. Biological thermodynamics - Wikipedia

    en.wikipedia.org/wiki/Biological_thermodynamics

    Biological thermodynamics (Thermodynamics of biological systems) is a science that explains the nature and general laws of thermodynamic processes occurring in living organisms as nonequilibrium thermodynamic systems that convert the energy of the Sun and food into other types of energy. The nonequilibrium thermodynamic state of living ...

  9. Glossary of systems theory - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_systems_theory

    Homeostasis: The property of either an open system or a closed system (especially a living organism) which regulates its internal environment so as to maintain a stable, constant condition. Human activity systems: Designed social systems organized for a purpose, which they attain by carrying out specific functions.