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An Enlisted Performance Report (EPR) is an evaluation form used by the United States Air Force. Instructions for constructing an EPR appear in chapter 3 of Air Force Instruction 36-2406: Officer and Enlisted Evaluation Systems. The EPR replaced the Airman Performance Report (APR) in the late 1980s. The EPR was replaced by the Enlisted ...
EPR was first observed in Kazan State University by Soviet physicist Yevgeny Zavoisky in 1944, [1] [2] and was developed independently at the same time by Brebis Bleaney at the University of Oxford. Typical set-up for recording EPR spectra. The user would be seated next to the RF generator, magnet, and controls for sample temperature.
Pulsed electron paramagnetic resonance (EPR) is an electron paramagnetic resonance technique that involves the alignment of the net magnetization vector of the electron spins in a constant magnetic field. This alignment is perturbed by applying a short oscillating field, usually a microwave pulse.
A Takeoff Acceleration Monitoring System automates the pilot monitoring of Distance to Go (DTG), "to sense, in a timely fashion the development of insufficient acceleration, which would extend the takeoff roll, perhaps precipitously".
Most labs have three calibration sections divided into K1/K8, K5/K6 and K3/K4 that specialize in like test equipment. For example, the K3/K4 section would maintain Frequency counter, Oscilloscope, Synthesized Signal Generator and power sensor. While K1/K8 would maintain digital multimeter, high voltage probe and resistance standards. Lastly K5 ...
Bullet drop and wind drift are shown both in mil and moa. The 7.62×51mm NATO has a 3.38 mL (52.0 gr H 2 O) cartridge case capacity. The exterior shape of the case was designed to promote reliable case feeding and extraction in bolt-action rifles and machine guns alike, under extreme conditions.
A full authority digital engine (or electronics) control (FADEC) is a system consisting of a digital computer, called an "electronic engine controller" (EEC) or "engine control unit" (ECU), and its related accessories that control all aspects of aircraft engine performance.
By 1944, the black jacket of the 08 mE bullet was dropped, and these bullets were produced with normal copper-colored jackets. Another wartime variation was designated the 08 sE bullet and can be identified by its dark gray jacket and was created by compressing iron powder at high temperature into a solid material (Sintereisen —'sintered iron ...