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...

Simple liquids are conventionally described by Newtonian fluid mechanics, based on the assumption that relaxation processes in flow occur much faster than rate at which is driven. Nanoscale solids, however, have characteristic mechanical response times picosecond scale, comparable to simple liquids; as a result, viscoelastic effects liquid must be considered. These been observed using time-reso...

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...

this article aims at contrasting aspectual oppositions in english and persian in the context of the novel the old man and the sea, and its translation by daryabandari (1983) as the data. unlike english, in persian perfective and imperfective forms are morphologically marked. while the vast majority of english simple past forms are translated into persian by past perfective forms, only less than...