Background Quercus liaotungensis Koidz.is an ecologically and economically important tree species widely distributed in Northern China.However, the effective assessment, utilization, and protection of Q.liaotungensis resources remain unexplored.Methods In total, 120 samples obtained from 12 Q.liaotungensis populations of Northern China were investi
Along with civil liability and criminal liability, contravention liability comes to complete the classical forms of liability applicable in the environmental protection field.This form of liability, unlike the civil liability, which has a predominantly repairer character, has a sanction General character, intervening in the case in which a subject
Vibration modes of a rotating circular membrane with extremely small thickness are investigated.In the previous papers, the author has conducted theoretical analysis of the membrane's equilibrium states and small vibration modes under gravity, employing the membrane theory of shell of revolution and von Karman's vibration equation and tak
Background Smart grid systems require high-quality Phasor Measurement Unit (PMU) data for proper operation, control, and decision-making.Missing PMU data may lead to improper actions or even blackouts.While the conventional cubic interpolation methods based on the solution of a set of linear equations to solve for the cubic belt spline coefficients