Abstract Methamphetamine (MA), as one kind of overflowed synthetic illicit drugs, has posed severe threats to health and social security.However, the on-site and visible fluorescence detection to MA sling bag remains limited.Herein, through covalently coupling diphenylacridine (DPA) and dimethylacridine (DMA) with pyridine, two ratiometric fluoresc
Taking the hydraulic cylinder for the miter gate in Dateng Gorges Water Conservancy Project as the object, a large slenderness ratio test hydraulic cylinder was designed based on the similarity theory.The buckling analysis RED OMEGA of the test hydraulic cylinder was carried out by the finite element method, considering the friction at the supports
Pseudomonas cichorii is the causal agent of lettuce midrib rot, characterized by a dark-brown to green-black discoloration of the midrib.Formation of necrotic lesions by several plant-pathogenic pseudomonads is associated with production of phytotoxic lipopeptides, which RED OMEGA contribute to virulence.Therefore, the ability of P.cichorii SF1-54
Abstract Geo-monitoring provides quantitative and reliable information to identify hazards and adopt 3/4 Sleeve Dress appropriate measures timely.However, this task inherently exposes monitoring staff to hazardous environments, especially in underground settings.Since 2000s, robots have been widely applied in various fields and many studies have fo