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  2. Power law - Wikipedia

    en.wikipedia.org/wiki/Power_law

    The power-law model does not obey the treasured paradigm of statistical completeness. Especially probability bounds, the suspected cause of typical bending and/or flattening phenomena in the high- and low-frequency graphical segments, are parametrically absent in the standard model.

  3. Power-flow study - Wikipedia

    en.wikipedia.org/wiki/Power-flow_study

    An alternating current power-flow model is a model used in electrical engineering to analyze power grids. It provides a nonlinear system of equations which describes the energy flow through each transmission line. The problem is non-linear because the power flow into load impedances is a function of the square of the applied voltages.

  4. Power (statistics) - Wikipedia

    en.wikipedia.org/wiki/Power_(statistics)

    Power analysis can either be done before (a priori or prospective power analysis) or after (post hoc or retrospective power analysis) data are collected. A priori power analysis is conducted prior to the research study, and is typically used in estimating sufficient sample sizes to achieve adequate power.

  5. Power-law fluid - Wikipedia

    en.wikipedia.org/wiki/Power-law_fluid

    A Newtonian fluid is a power-law fluid with a behaviour index of 1, where the shear stress is directly proportional to the shear rate: = These fluids have a constant viscosity, μ, across all shear rates and include many of the most common fluids, such as water, most aqueous solutions, oils, corn syrup, glycerine, air and other gases.

  6. Scale-free network - Wikipedia

    en.wikipedia.org/wiki/Scale-free_network

    A variant of the 2-L model, the k2 model, where first and second neighbour nodes contribute equally to a target node's attractiveness, demonstrates the emergence of transient scale-free networks. [8] In the k2 model, the degree distribution appears approximately scale-free as long as the network is relatively small, but significant deviations ...

  7. Power system simulation - Wikipedia

    en.wikipedia.org/wiki/Power_system_simulation

    Electrical power system simulation involves power system modeling and network simulation in order to analyze electrical power systems using design/offline or real-time data. Power system simulation software's are a class of computer simulation programs that focus on the operation of electrical power systems. These types of computer programs are ...

  8. Model rocket motor classification - Wikipedia

    en.wikipedia.org/wiki/Model_rocket_motor...

    The largest vendor of model rocket motors in the world is Estes Industries. The largest vendors of high-power rocket motors in the world are Cesaroni Technology Inc. and RCS Rocket Motor Components, Inc. The very first model rocket motor certified was by Model Missiles Inc. (Orville Carslile). Circa 1958.

  9. Common Information Model (electricity) - Wikipedia

    en.wikipedia.org/wiki/Common_Information_Model...

    The Common Information Model (CIM) is an electric power transmission and distribution standard developed by the electric power industry. It aims to allow application software to exchange information about an electrical network. [1] It has been officially adopted by the International Electrotechnical Commission (IEC).