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  2. Science fair - Wikipedia

    en.wikipedia.org/wiki/Science_fair

    A science fair or engineering fair is an event hosted by a school that offers students the opportunity to experience the practices of science and engineering for themselves. In the United States, the Next Generation Science Standards makes experiencing the practices of science and engineering one of the three pillars of science education.

  3. Power management integrated circuit - Wikipedia

    en.wikipedia.org/wiki/Power_management...

    Power management ICs are solid-state devices that control the flow and direction of electrical power. Many electrical devices use multiple internal voltages (e.g., 5 V, 3.3 V, 1.8 V, etc.) and sources of external power (e.g., wall outlet, battery, etc.), meaning that the power design of the device has multiple requirements for operation. A PMIC ...

  4. Control variable - Wikipedia

    en.wikipedia.org/wiki/Control_variable

    A control variable (or scientific constant) in scientific experimentation is an experimental element which is constant (controlled) and unchanged throughout the course of the investigation. Control variables could strongly influence experimental results were they not held constant during the experiment in order to test the relative relationship ...

  5. Power system operations and control - Wikipedia

    en.wikipedia.org/wiki/Power_system_operations...

    The term power system control describes actions taken in response to unplanned disturbances (e.g., changes in demand or equipment failures) in order to provide reliable electric supply of acceptable quality. [3] The corresponding engineering branch is called Power System Operations and Control.

  6. Science project - Wikipedia

    en.wikipedia.org/wiki/Science_project

    A science project is an educational activity for students involving experiments or construction of models in one of the science disciplines. Students may present their science project at a science fair, so they may also call it a science fair project. Science projects may be classified into four main types.

  7. International Science and Engineering Fair - Wikipedia

    en.wikipedia.org/wiki/International_Science_and...

    The Regeneron International Science and Engineering Fair (ISEF) is an annual science fair in the United States. [1] It is owned and administered by the Society for Science, [2] a 501(c)(3) non-profit organization based in Washington, D.C. [3] Each May, more than 1800 students from roughly 75 countries and territories compete in the fair for scholarships, tuition grants, internships, scientific ...

  8. Power control - Wikipedia

    en.wikipedia.org/wiki/Power_control

    Power control, broadly speaking, is the intelligent selection of transmitter power output in a communication system to achieve good performance within the system. [1] The notion of "good performance" can depend on context and may include optimizing metrics such as link data rate, network capacity, outage probability, geographic coverage and range, and life of the network and network devices.

  9. Scientific control - Wikipedia

    en.wikipedia.org/wiki/Scientific_control

    A scientific control is an experiment or observation designed to minimize the effects of variables other than the independent variable (i.e. confounding variables). [1] This increases the reliability of the results, often through a comparison between control measurements and the other measurements. Scientific controls are a part of the ...