I was after an older zero, a particular instance arguing for an Eastern origin.Found on a stone stele, it was documented in 1931 by a French scholar named George Coedès. Assigned the identifying label K-127, the inscription reads like a bill of sale and includes references to slaves, ...
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Global inventory of atmospheric fibrous microplastics input into the ocean: an implication from the indoor origin. J. Hazard. Mater. 400, 123223 (2020). Article Google Scholar Cabrera, M. et al. A new method for microplastic sampling and isolation in mountain glaciers: a case study of one ...
What is the origin of the oxygen we breathe, the hydrogen and oxygen (in form of water H2O) in rivers and oceans, the carbon in all organic compounds, the silicon in electronic hardware, the calcium in our bones, the iron in steel, silver and gold in jewels, the rare earths utilized,...
Old English wrōtan, of Germanicorigin; related to Old English wrōt ‘snout’, German Rüssel ‘snout’, and perhaps ultimately to Latin rodere ‘gnaw’. e.g. A zero of a polynomial function p(x) is a root of the corresponding polynomial equation p(x)=0. radical n. 用根式表示的根;...
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1. natural number (counting number) 自然数(不包括0),正整数 prime number/prime n. 质数/素数,prime adj. relatively prime 互质的 early 16th century (in the sense ‘fill, load’): origin uncertain; probably based on Latin primus ‘first’, since the sense expressed is a ‘first’ operation...
Each Duffing equation has an unstable solution area with a boundary, which is also a line of bifurcation. Generally, in a system that can be modeled by the Duffing equation, bifurcations can occur at frequencies lower than the origin point frequency of t
zero: Used when there are no items (optional). one: Used when there's exactly one item. two: Used when there's two items. (optional) few: Used for a small number of items (optional). many: Used for larger quantities (optional). other: A catch-all case for other counts or variatio...
Integument number varies from zero to two in extant angiosperms (Lu AM and Tang YC, 2005), and a number of integuments have little taxonomic value (Eames AJ, 1961). Two integuments are apparently not a required feature for an angiosperm ovule. Contrary to the above, the outer in...