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2. Open Access Same-Time Information System - Wikipedia

   en.wikipedia.org/wiki/Open_Access_Same-Time...

   The Open Access Same-Time Information System (OASIS), is an Internet-based system for obtaining services related to electric power transmission in North America. It is the primary means by which high-voltage transmission lines are reserved for moving wholesale quantities of electricity.

3. Split-phase electric power - Wikipedia

   en.wikipedia.org/wiki/Split-phase_electric_power

   In a so-called balanced power system, sometimes called "technical power", an isolation transformer with a center tap is used to create a separate supply with conductors at balanced voltages with respect to ground. The purpose of a balanced power system is to minimize the noise coupled into sensitive equipment from the power supply.

4. Low voltage ride through - Wikipedia

   en.wikipedia.org/wiki/Low_voltage_ride_through

   In electrical power engineering, fault ride through (FRT), sometimes under-voltage ride through (UVRT), or low voltage ride through (LVRT), [1] is the capability of electric generators to stay connected in short periods of lower electric network voltage (cf. voltage sag).

5. Comparison of real-time operating systems - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_real-time...

   source available: embedded: Motorola 68010, x86/IA-32, ARM, Freescale PowerPC, PowerPC 970, LEON Mbed OS: Apache 2.0: open source: embedded: Arm Cortex-M MenuetOS: GNU GPL: open source? IA-32 MERT: Proprietary(Bell Labs) closed: OS for long-distance telephone switching systems: inactive: PDP-11: MicroC/OS-III: Apache 2.0: open source: embedded ...

6. Power dividers and directional couplers - Wikipedia

   en.wikipedia.org/wiki/Power_dividers_and...

   The delta form uses resistors that are equal to the system impedance. This can be advantageous because precision resistors of the value of the system impedance are always available for most system nominal impedances. The tee circuit has the benefits of simplicity, low cost, and intrinsically wide bandwidth.

7. Air conditioning - Wikipedia

   en.wikipedia.org/wiki/Air_conditioning

   The first mini-split system was sold in 1961 by Toshiba in Japan, and the first wall-mounted mini-split air conditioner was sold in 1968 in Japan by Mitsubishi Electric, where small home sizes motivated their development. The Mitsubishi model was the first air conditioner with a cross-flow fan.