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In the laboratory samples may be prepared by treating acetylene with a solution of lithium in ammonia, on −40°C, with creation of adduct of Li 2 C 2 ·C 2 H 2 ·2NH 3 that decomposes in stream of hydrogen at room temperature giving white powder of Li 2 C 2. C 2 H 2 + 2 Li → Li 2 C 2 + H 2. Samples prepared in this manner generally are ...
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Samples at a constant time from the streamline would still be used, but instead of averaging all pixels in a streamline with a static kernel, a ripple-like kernel constructed from a periodic function multiplied by a Hann function acting as a window (in order to prevent artifacts) is used. The periodic function is then shifted along the period ...
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It’s free to try, with premium features ranging from $6 to $12 per month, but it pays for itself in no time. With the cash you save, put some of it to work for you. Even investing newbies often ...
While many fast-food joints claim they serve “real” chicken, some still rely on antibiotic-laden, factory-farmed mystery meat. Here are 7 chains that actually use high-quality, real chicken.
FOSS stands for "Free and Open Source Software". There is no one universally agreed-upon definition of FOSS software and various groups maintain approved lists of licenses. The Open Source Initiative (OSI) is one such organization keeping a list of open-source licenses. [1] The Free Software Foundation (FSF) maintains a list of what it ...
A warning has been issued to travelers over the spread of three diseases, including the Marburg virus. It’s a close cousin of Ebola that’s been dubbed the “bleeding eye” virus due to one ...