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Kenmore is an American brand of household appliances, cookware, floorcare, grills, HVAC equipment and other home items owned and licensed by Transformco, an affiliate of ESL Investments. [ 1] Previously they were a subsidiary brand of Sears Holdings, but after Sears Holdings filed for Chapter 11 bankruptcy on October 15, 2018 [ 2] they were ...
Corsi–Rosenthal Box. An example of a homemade unit. The Corsi–Rosenthal Box, also known as a Comparetto Cube, [ 1] is a design for a do-it-yourself air purifier that can be built comparatively inexpensively. It consists of four [ 2] or five [ 3][ 4] HVAC particulate air filters that form a cube and a box fan to draw air through the filters.
A distributed-element filter is an electronic filter in which capacitance, inductance, and resistance (the elements of the circuit) are not localised in discrete capacitors, inductors, and resistors as they are in conventional filters. Its purpose is to allow a range of signal frequencies to pass, but to block others.
Infinite impulse response ( IIR) is a property applying to many linear time-invariant systems that are distinguished by having an impulse response that does not become exactly zero past a certain point but continues indefinitely. This is in contrast to a finite impulse response (FIR) system, in which the impulse response does become exactly ...
Probability theory. In probability theory and statistics, a normal distribution or Gaussian distribution is a type of continuous probability distribution for a real-valued random variable. The general form of its probability density function is The parameter is the mean or expectation of the distribution (and also its median and mode ), while ...
Infobox references. Sulfuric acid ( American spelling and the preferred IUPAC name) or sulphuric acid ( Commonwealth spelling ), known in antiquity as oil of vitriol, is a mineral acid composed of the elements sulfur, oxygen, and hydrogen, with the molecular formula H2SO4. It is a colorless, odorless, and viscous liquid that is miscible with water.
The John F. Kennedy assassination rifle is the long-barrelled firearm that was used to assassinate John F. Kennedy, the 35th President of the United States. In March 1963, Lee Harvey Oswald, using the alias "A. Hidell", purchased by mail order a 6.5×52mm Carcano Model 38 infantry carbine (described by the Warren Commission as a "Mannlicher ...
Fukushima nuclear accident. Coordinates: 37°25′17″N 141°1′57″E. Fukushima nuclear accident. Part of the 2011 Tōhoku earthquake and tsunami. The four damaged reactor buildings (from left: Units 4, 3, 2, and 1) on 16 March 2011. Hydrogen-air explosions in Units 1, 3, and 4 caused structural damage. [ 1] Date.