measuring loop
51Chicago — This article is about the U.S. city. For other uses, see Chicago (disambiguation). Windy City redirects here. For other uses, see Windy City (disambiguation). Chicago   City   City of Chicago …
52Hysteresis — Not to be confused with Hysteria. Fig. 1. Electric displacement field D of a ferroelectric material as the electric field E is first decreased, then increased. The curves form a hysteresis loop. Hysteresis is the dependence of a system not… …
53Gas chromatography — A gas chromatograph with a headspace sampler Acronym GLC, GC Classification chromatography Analytes organic inorganic …
54Stepper motor — A stepper motor (or step motor) is a brushless, synchronous electric motor that can divide a full rotation into a large number of steps. The motor s position can be controlled precisely, without any feedback mechanism (see open loop control).… …
55Action research — is a reflective process of progressive problem solving led by individuals working with others in teams or as part of a community of practice to improve the way they address issues and solve problems. Action research can also be undertaken by… …
56Artificial pancreas — The artificial pancreas is a technology in development to help people with diabetes automatically control their blood glucose level by providing the substitute endocrine functionality of a healthy pancreas. There are several important exocrine… …
57Custody transfer — in the oil and gas industry refers to the transactions involving transporting physical substance from one operator to another. This includes the transferring of raw and refined petroleum between tanks and tankers; tankers and ships and other… …
58Crochet — For a note duration, see Quarter note. Detail of a crocheted doily, Sweden Crochet (English pronunciation: /k …
59Ethanol — For other uses, see Ethanol (disambiguation). Grain alcohol redirects here. It is not to be confused with Neutral grain spirit. Ethanol …
60Tropical cyclone — Hurricane redirects here. For other uses, see Hurricane (disambiguation). Hurricane Isabel (2003) as seen from orbit during Expedition 7 of the International Space Station. The eye, eyewall and surrounding rainbands that are characteristics of… …
