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Minories is a 'deceptively simple' [1] design for a model railway layout, designed by C. J. Freezer. The design was first published in Railway Modeller in 1957 and it became a regular of Peco's many collected plans books afterwards. [2] It is notable as an influential design, more than as a single instance of the model.
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Cyril John Freezer (27 June 1924 – 19 May 2009) was an English railway modeller, writer, and magazine editor. He edited Railway Modeller from 1950 to 1978, and Model Railways from 1978 until 1983.
Examples are door and window sensors in burglar alarm systems and tamperproofing methods. Reed switches have been used in laptops to put the laptop into sleep/hibernation mode when the lid is closed. Speed sensors on bicycle wheels frequently use a reed switch to actuate briefly each time a magnet on the wheel passes the sensor.
Food in a refrigerator with its door open. A refrigerator, commonly shortened to fridge, is a commercial and home appliance consisting of a thermally insulated compartment and a heat pump (mechanical, electronic or chemical) that transfers heat from its inside to its external environment so that its inside is cooled to a temperature below the room temperature. [1]
Figure 3. In the flat region, the sensor can be modeled as a voltage source in series with the sensor's capacitance or a charge source in parallel with the capacitance. Piezo sensors typically use the flat region of the frequency response (the "usable region" in Figure 1) between the high-pass cutoff and the resonant peak.
As shown in the phase diagram, at very low temperatures the concentrated phase is essentially pure 3 He, while the dilute phase contains about 6.6% 3 He and 93.4% 4 He. The working fluid is 3 He, which is circulated by vacuum pumps at room temperature. The 3 He enters the cryostat at a pressure of a few hundred millibar.
The design of the saturable inductor current sensor is similar to that of a closed-loop Hall-effect current sensor; the only difference is that this method uses the saturable inductor instead of the Hall-effect sensor in the air gap. Saturable inductor current sensor is based on the detection of an inductance change. The saturable inductor is ...