Leading to the enormous growth in renewable and power electronics technologies and the global drive towards environmental friendliness and sustainability, a significant number of renewable energy sources are being connected to the power system via inverter-based systems.The inverter-based generations (IBG) have no stored energy and less fault curre
Objective During the operation of urban rail transit trains, incidents such as collisions, derailments and overturning may occur.It is essential to study the dynamic behavior of trains and the technology to prevent overturning under these conditions.Method Combining the actual vehicle windshield structure and vehicle dynamic envelope during operati
In this study, a double-layer reinforced concrete beam structure was created for the purpose of repairing reinforced concrete beams by pouring a layer of concrete on top of the reinforced concrete beam and then adding fibers leather baton holder to the concrete.Take into consideration the bearing capacity of these double-layer concrete beams as wel
With the wide use of web technologies, service-oriented architecture (SOA), and cloud computing, more and more geographical information systems are served as GIServices.Under such circumstance, quality of geographic information services (QoGIS) has emerged as an important research topic of geoinformatics.However, it is not easy to understand the fi
ObjectiveThe prevalence of food allergy (FA) has been increasing in recent years and has become an important public health, food safety, tinsupe and clinical nutrition problem.However, population-based studies on the prevalence of FA are very limited in China.This study aims to determine the prevalence and pattern of parent-reported FA among school