This paper describes guidance algorithms that use numerical predictor-corrector techniques to guide the spacecraft to the proper objectives. The precision landing objective is to deploy a parachute within 10 km of the target, and the aerocapture objective is to use a single atmospheric pass instead of an orbit insertion burn, with the requirement of being within 0.1° of the desired inclination ...

Huygens is ESA’s main contribution to the joint NASA/ESA/ASI Cassini/Huygens mission to Saturn and its largest moon Titan. The Probe, delivered to the interface altitude of 1270 km above the surface by NASA/JPL Cassini orbiter, entered the dense atmosphere of Titan on 14 January 2005 and landed on the surface after a descent under parachute of slightly less than 2.5 hours. Huygens continued to ...

Verrucous carcinoma is a peculiar type of squamous cell carcinoma character­ized by a clinicopathological behavior.This neoplasm is grossly cauliflower, warty, or parachute in shape, slowly growing and pushing the adjucent tissue without a definite invasion. Rarely causing metastasis. This tumor is radio­resistant and the choice treatment is surgery. Histological features resemble the papilloma...

This paper presents a numerical investigation of the axisymmetric, pressure driven motion of single file erythrocyte (i.e., red blood cell) suspensions flowing in capillaries of diameter 8-11 μm. Our study successfully recreates several important in vivo hemodynamic and hemorheological properties of microscopic blood flow, such as parachute shape of the cells, blunt velocity profile, and the Fa...

The development of perchlorate-free hand-held signal illuminants for the US Army's M195 green star parachute is described. Compared with the perchlorate-containing control, the optimized perchlorate-free illuminants were less sensitive toward various ignition stimuli while offering comparable burn times and visible-light outputs. The results were also important from the perspective of civilian ...

Although we take seriously the statement, “An apple a day keeps thedoctor away”1 (and the importance of a good parachute), these articles launch our first April Fool’s issue. At least once per year, and more is likely better (but needs to be tested), laughter is the bestmedicine.We look forward to continued editorial chuckles as you send us scientifically rigorous and humorous content thatwill ...

Methods Between 1986 and 2012, 137 infants and children (mean age 4.1±5.0 (range 1 month to 16.8 years) underwent surgical correction of congenital mitral stenosis (CMS). In 48 patients, CMS is involved in Shone’s anomaly. The typical congenital MS (Type I) was seen in 56 patients., hypoplastic MV (Type II) in 15 patients, supravalvar mitral ring (Type III in 48 patients, parachute MV (Type IV)...