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  2. Spontaneous process - Wikipedia

    en.wikipedia.org/wiki/Spontaneous_process

    In other words, spontaneity is a necessary, but not sufficient, condition for a process to actually occur. Furthermore, spontaneity makes no implication as to the speed at which the spontaneous process may occur - just because a process is spontaneous does not mean it will happen quickly (or at all).

  3. Glossary of systems theory - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_systems_theory

    Dissipative structure: A term invented by Ilya Prigogine to describe complex chemical structures undergoing the process of chemical change through the dissipation of entropy into their environment, and the corresponding importation of "negentropy" from their environment. Also known as syntropic systems.

  4. Irreversible process - Wikipedia

    en.wikipedia.org/wiki/Irreversible_process

    An irreversible process increases the total entropy of the system and its surroundings. The second law of thermodynamics can be used to determine whether a hypothetical process is reversible or not. Intuitively, a process is reversible if there is no dissipation. For example, Joule expansion is irreversible because initially the system is not ...

  5. Reversible process (thermodynamics) - Wikipedia

    en.wikipedia.org/wiki/Reversible_process...

    Other applications exploit that entropy and internal energy are state functions whose change depends only on the initial and final states of the system, not on how the process occurred. [6] Therefore, the entropy and internal-energy change in a real process can be calculated quite easily by analyzing a reversible process connecting the real ...

  6. Process theory - Wikipedia

    en.wikipedia.org/wiki/Process_theory

    A process theory is a system of ideas that explains how an entity changes and develops. [1] Process theories are often contrasted with variance theories , that is, systems of ideas that explain the variance in a dependent variable based on one or more independent variables .

  7. Thermodynamic process - Wikipedia

    en.wikipedia.org/wiki/Thermodynamic_process

    (1) A Thermodynamic process is a process in which the thermodynamic state of a system is changed. A change in a system is defined by a passage from an initial to a final state of thermodynamic equilibrium. In classical thermodynamics, the actual course of the process is not the primary concern, and often is ignored.

  8. Process - Wikipedia

    en.wikipedia.org/wiki/Process

    A process is a series or set of activities that ... or running a program concurrently with other programs Child process, created by another process; Parent process ...

  9. Process ontology - Wikipedia

    en.wikipedia.org/wiki/Process_ontology

    A formal process ontology is an ontology in the knowledge domain of operations. Often such ontologies take advantage of the benefits of an upper ontology. Planning software can be used to perform plan generation based on the formal description of the process and its constraints. Numerous efforts have been made to define a process/planning ...