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The manifold absolute pressure sensor (MAP sensor) is one of the sensors used in an internal combustion engine's electronic control system. Engines that use a MAP sensor are typically fuel injected. The manifold absolute pressure sensor provides instantaneous manifold pressure information to the engine's electronic control unit (ECU).
WD-40's formula is a trade secret. [17] The original copy of the formula was moved to a secure bank vault in San Diego in 2018. [18] To avoid disclosing its composition, the product was not patented in 1953, and the window of opportunity for patenting it has long since closed.
Former WD-40 headquarters in San Diego. The WD-40 Company, originally the Rocket Chemical Company, is an American manufacturer of household and multi-use products, including its signature brand, WD-40, as well as 3-In-One Oil, Lava, Spot Shot, X-14, Carpet Fresh, GT85, 1001, Solvol, 2000 Flushes and No Vac. [2] It is based in San Diego, California.
He was born in Chicago. [2]Larsen is sometimes credited with inventing the WD-40 formula in 1953 but this is not certain. The WD-40 company website and other books and newspapers credit him [3] [4] [5] but according to Iris Engstrand, a historian of San Diego and California at the University of San Diego, it was actually Iver Norman Lawson (also an engineer born in Chicago at around the same ...
The WD40 repeat (also known as the WD or beta-transducin repeat) is a short structural motif of approximately 40 amino acids, often terminating in a tryptophan-aspartic acid (W-D) dipeptide. [2] Tandem copies of these repeats typically fold together to form a type of circular solenoid protein domain called the WD40 domain .
Sonorex ultrasonic cleaner from the 1970s or 1980s Ultrasonic cleaning of a mobile phone. Ultrasonic cleaning is a process that uses ultrasound (usually from 20 to 40 kHz) to agitate a fluid, with a cleaning effect. Ultrasonic cleaners come in a variety of sizes, from small desktop units with an internal volume of less than 0.5 litres (0.13 US ...
Cleaning validation is the methodology used to assure that a cleaning process removes chemical and microbial residues of the active, inactive or detergent ingredients of the product manufactured in a piece of equipment, the cleaning aids utilized in the cleaning process and the microbial attributes.
The RCA clean is a standard set of wafer cleaning steps which need to be performed before high-temperature processing steps (oxidation, diffusion, CVD) of silicon wafers in semiconductor manufacturing. Werner Kern developed the basic procedure in 1965 while working for RCA, the Radio Corporation of America.