Bessel function, also called Cylinder Function, any of a set of mathematical functions systematically derived around 1817 by the German astronomer Friedrich Wilhelm Bessel during an investigation of solutions of one of Kepler's equations of planetary motion.
Figure 5 shows the filter curve derived around 420 MHz.
Finally, we used two H. axyridis samples from commercial biocontrol stocks (from Biotop and Biobest biocontrol companies), both of which were derived around 1995 from a strain reared under laboratory conditions since 1982.
Correlation between blood pressure (BP) and target organ damage, vascular risk, and long-term patient prognosis is stronger for measurements derived from around-the-clock ambulatory BP monitoring (ABPM) than in-clinic daytime ones.
Gradual genetic and morphologic transitions occur between intermediately derived forms around the ring, whereas abrupt changes occur between the most divergent forms at the terminus, with rare hybridization restricted to few generations of hybrids or even full RI [ 21, 22].
Bertelsmann derives around 80% of its revenues from the European region, and Rabe said he was targeting other growth regions such as China, India and Brazil.
In contrast, primary and secondary liver tumours derive around 90% of their blood supply from the hepatic artery.
Tajikistan, torn by war and narco-trafficking and the very poorest of the ex-Soviet republics, is thought to derive around 20% of its GDP from remittances.
GE's size is skewed by its large financial arm, from which it derives around one-third of its revenue.
Manchester United itself derives around a third of its income from merchandise sales, which do not directly depend on its record on the pitch.
