Helicopters operations on board ships require special procedures introducing additional limitations known as ship helicopter operational limitations (SHOLs) which are a priority for all navies. This paper presents the main results obtained from the experimental investigation of a simple frigate shape (SFS) which is a typical case of study in experimental and computational aerodynamics. The resu...

Abstract Background The unicameral bone cyst (UBC) is a kind of benign tumor whose clinical treatments and efficacy are controversial. purpose this study was to evaluate the elastic stable intramedullary nail (ESIN), injection autologous marrow (ABM), combination ESIN ABM in treatment children. Methods Eighty-three cases with simple were analyzed retrospectively. Twenty-eight treated ABM. ESIN....

simple harmonizable processes (shp) introduced by soltani and parvardeh (2006) are a large class of nonstationary processes which includes stationary and periodically correlated (pc) processes. detection and estimation of shp structure are important problems when dealing with nonstationary data. in this paper, we study the spectral properties of simple processes and propose a method to detect a...