A wind turbine generator set utilizes natural wind energy to drive blades and a generator main shaft to rotate so as to drive a motor rotor to rotate and to generate electric power, thereby having the characteristics of environmental friendliness and the like, and being widely used.
At present, a majority of wind turbine generator sets are in a three-blade drive form with a main shaft horizontally arranged; a fan of the structure increases rated output power by increasing a length of each blade, i.e. increasing a wind-swept area of each blade, so that while the power of the fan is increased an overall size and a height of the fan are also increased, a relatively high fan body and relatively long blades increase a vibration degree of theA Delphi study of late-onset personality disorders.
ABSTRACTObjectives:The DSM-5 describes personality disorders (PDs) as emerging in early life and remaining continuous throughout the life-span. Yet case studies and expert opinion support the existence of late-onset PDs. Little is known about PDs in late life, and our instruments for assessing them are not well validated. Thus, the focus of this exploratory Delphi study was the late-onset PD, with special attention to the accuracy of the core criteria for the diagnosis. A Delphi study was designed to assess the presentation of PDs in late life. The Delphi consisted of three successive rounds of inquiry. Between rounds, the participants were provided with a summary of the panel's responses. A panel of 21 experts included published authors, researchers, and teachers from the USA,