Abstract We elaborate on various aspects of the conformal field theory of the symmetric orbifold.We collect various results that have appeared in the literature, and we present a coherent picture of the operator content of this CFT, relying on the orbifold extension of the Virasoro algebra.We then focus on the large N-limit of ONE CONDITION ORIGINA
In response to water deficiency in Northern China, a scheme called the Middle Route Project was devised under the South-to-North Water Transfer Division to divert water from the Han River, the biggest tributary of the Yangtze River, to supply two provinces (Henan and Hebei) Crank Arm Pair and two municipalities (Beijing and Tianjin) in the north.Th
The modelling is widely used in determining the best strategies for the mitigation of the impact of infectious diseases.Currently, the modelling of a complex system such as the spread of COVID-19 infection is among the topical issues.The aim of this article is graph-based modelling of the COVID-19 infection spread.The article investigates the studi
Hydrodynamic pressure exerted on a plunge pool slab by jet impingement is of high interest in high dam projects.The present study experimentally investigated the characteristics of pressure induced by a jet through a constant width flip bucket (CFB) and a slit flip bucket (SFB).A pressurized plane pipe was employed in the flume experiments to contr
The economic emission dispatch problem (EEDP) is a nonconvex and nonsmooth multiobjective optimization problem in the power system field.Generally, fuel cost and total emissions of harmful gases are the problem objective functions.The EEDP decision variables are output powers of thermal generating units (TGUs).To make the EEDP problem more practica