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Consequently, it would eventually be replaced by Composition C-4. The velocity of detonation is about 7600 m/s (25,000 feet per second). Composition C-3 consists of 77%–85% cyclonite ( RDX ) and 15%–23% gel made out of liquid nitro compounds (e.g. liquid DNT and small amount of NT ) and nitrocellulose or butyl phthalate and nitrocellulose.
C-4 is a member of the Composition C family of chemical explosives. Variants have different proportions and plasticisers and include compositions C-2, C-3, and C-4. [3] The original RDX-based material was developed by the British during World War II and redeveloped as Composition C when introduced to the U.S. military. It was replaced by ...
Maize (Zea mays, Poaceae) is the most widely cultivated C 4 plant.[1]In botany, C 4 carbon fixation is one of three known methods of photosynthesis used by plants. C 4 plants increase their photosynthetic efficiency by reducing or suppressing photorespiration, which mainly occurs under low atmospheric CO 2 concentration, high light, high temperature, drought, and salinity.
C 3 and C 4 plants have different signatures, allowing the abundance of C 4 grasses to be detected through time in the δ 13 C record. [13] Whereas C 4 plants have a δ 13 C of −16 to −10‰, C 3 plants have a δ 13 C of −33 to −24‰. [14]
C4.5 is an algorithm used to generate a decision tree developed by Ross Quinlan. [1] C4.5 is an extension of Quinlan's earlier ID3 algorithm . The decision trees generated by C4.5 can be used for classification, and for this reason, C4.5 is often referred to as a statistical classifier .
Carbon on Earth naturally occurs in two stable isotopes, with 98.9% in the form of 12 C and 1.1% in 13 C. [1] [8] The ratio between these isotopes varies in biological organisms due to metabolic processes that selectively use one carbon isotope over the other, or "fractionate" carbon through kinetic or thermodynamic effects. [1]
The value 3.267 is taken from the sample size-specific D 4 anti-biasing constant for n=2, as given in most textbooks on statistical process control (see, for example, Montgomery [2]: 725 ). Calculation of individuals control limits
CCEB products include Allied Communications Publications, Information Exchange Action Items, and CCEB publications. The U.S. CCEB representative is the Joint Chiefs of Staff Director for C4 Systems (J-6). The U.S. Army provides technical representatives to selected CCEB working groups at the request of the U.S. CCEB representative. [3]