C19-diterpenoid alkaloids have complex and diverse structures, posing great challenges for nuclear magnetic resonance sex shop arles (NMR)-based structural elucidation.Three C19-diterpenoid alkaloids, including taronenine E (1), chasmaconitine (2) and vilmorisine (3), were isolated from the roots of Aconitum taronense Fletcher et Lauener, and analy
In order to reduce watering of wells and equalize their injectivity profiles, the prospects of introducing PPG technology in Russian fields are considered, in which preformed particles polymer gel are pumped into the injection well.These particles, being a supersorbent based on polyacrylamide, absorb water, become elastic, which allows them to shri
Traditionally, soft sensors are developed based on measurement data only, but here we consider a moving window (MW) soft sensor (SS) that uses data generated from a calibrated, rigorous model of the distillation columns of an FFC unit at Gazpromneft-Omsk Refinery.The contribution of the paper is that a procedure is developed for MW SS design that d
Job strain is associated with an increased coronary heart disease risk, but few large-scale studies have examined the relationship of this psychosocial characteristic with the biological risk factors that potentially mediate the job strain - heart disease association.We pooled cross-sectional, individual-level data from eight studies comprising 47,