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Deuterium-depleted water has less deuterium (2 H) than occurs in nature at sea level. [1] Deuterium is a naturally-occurring, stable (non-radioactive) isotope of hydrogen with a nucleus consisting of one proton and one neutron. A nucleus of normal hydrogen (protium, 1 H) consists of one proton only, and no neutron.
Semiheavy water is the result of replacing one of the protium in normal water with deuterium. [1] It exists whenever there is water with light hydrogen (protium, 1 H) and deuterium (D or 2 H) in the mix. This is because hydrogen atoms (1 H and 2 H) are rapidly exchanged between water molecules.
Girdler sulfide process. The Girdler sulfide (GS) process, also known as the Geib–Spevack (GS) process, [1] is an industrial production method for filtering out of natural water the heavy water (deuterium oxide = D 2 O) which is used in particle research, in deuterium NMR spectroscopy, deuterated solvents for proton NMR spectroscopy, in heavy water nuclear reactors (as a coolant and ...
Deuterium-depleted water, water with less heavy water than in natural water. See also. ddw, ISO 639-3 code of the Dawera-Daweloor language of Indonesia
Since one in about every 6,400 hydrogen atoms is deuterium, a 50-kilogram (110 lb) human containing 32 kilograms (71 lb) of body water would normally contain enough deuterium (about 1.1 grams or 0.039 ounces) to make 5.5 grams (0.19 oz) of pure heavy water, so roughly this dose is required to double the amount of deuterium in the body.
DLW ('tagged' water) is traceable hydrogen (deuterium), and traceable oxygen (18 O). The 18 O leaves the body in two ways: (i) exhaled CO 2, and (ii) water loss in (mostly) urine, sweat, and breath. But the deuterium leaves only in the second way (water loss). From deuterium loss, we know how much of the tagged water left the body as water.
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Denison Hydraulics is a publicly traded U.S.-based company (Stock Symbol:DENHY) that manufactures industrial hydraulic fluid power systems (hydraulic pumps, motors, valves and engineered systems [1]) and components and is headquartered in Marysville, Ohio.
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