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A mold oscillating system for continuous casting machines has been developed based on a nonsinusoidal oscillation profile with an online oscillation control capability. A new type of the mold oscillating system is proposed comprising two servomotor-driven eccentric shafts. The principle of operation of a non-sinusoidal oscillation system is described. Based on the analysis of the non-sinusoidal oscillation...
Nigellidine (1), only the second example of a natural product containing an indazole nucleus, was isolated from Nigella sativa and characterized by spectroscopic and X-ray diffraction techniques.
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