The flow about, and drag of, two types of parachute canopy have been examined at supersonic speeds at zero incidence, in isolation and in the presence of rigging lines,and behind bodies of revolution. The investigation has shown that the presence of rigging lines reduces the canopy drag by an extent dependent upon the length of the lines. Several different flom regimes are encountered similar t...

The Parachute is a novel left ventricular (LV) partitioning device that is deployed percutaneously in the left ventricle in patients with anteroapical regional wall motion abnormalities, dilated LV and systolic dysfunction after anterior myocardial infarction (MI). The implantable device is a partitioning membrane that isolates the dysfunctional region of the ventricle and decreases chamber vol...

Parachute mitral valve complex is an unusual congenital anomaly that has been described by Shone et al. It is characterized by a parachute deformity of the mitral valve associated with additional forms of left heart anomalies, such as aortic valvular stenosis and coarctation of the aorta. A 21-year-old female who was referred to our department because of progressive dyspnea on effort and at res...

OBJECTIVES To determine whether parachutes are effective in preventing major trauma related to gravitational challenge. Design Systematic review of randomised controlled trials. DATA SOURCES Medline, Web of Science, Embase, and the Cochrane Library databases; appropriate internet sites and citation lists. STUDY SELECTION Studies showing the effects of using a parachute during free fall. M...

Shone, Sellers, Anderson, Adams, Lillehei, and Edwards (1963) descri;bed a developmental deformity of the mitral valve characterized by insertion of the chordae tendineae into a single papillary muscle, producing a funnel-shaped valve which is to some degree stenotic. They employed the term 'parachute' first used by Edwards (1961), and noted an association with other leftsided cardiac deformiti...

The dynamic stability and equilibrium conditions of a parachute are studied using a six degree of freedom dynamic model that includes apparent inertia effects. Existing parachute dynamic models are discussed and the selection of a relevant model is shown. The chosen dynamic model that incorporates apparent inertia is summarized and used for analysis. The moments on the parachute system caused b...

Abstract In order to study the fluid–solid coupling dynamic characteristics of parachute-payload system during drop process and analyze unsteady aerodynamic under finite mass opening conditions, an adaptive moving fluid mesh method is developed on basis existing arbitrary Lagrangian–Eulerian (ALE) method. The calculation results open force velocity C-9 parachute demonstrate effectiveness this O...