A major objective of next generation reusable launch vehicle (RLV) programs includes significant improvements in vehicle safety, reliability, and operational costs. In this paper, trajectory generation on approach/landing (A&L) for RLVs using motion primitives (MPs) and neighboring optimal control (NOC) is discussed. The proposed trajectory generation approach at A&L phase is based on an MP sch...

Objective: This study aims at investigating helicopter pilots’ strategies to achieve ship deck landing.Background: Helicopter maritime operations are challenging, especially when it comes landing on the moving decks of small ships, such as frigates, which can lead dramatic accidents.Method: Expert pilots were requested fly full maneuver from approach touchdown in an immersive simulator. Two sea...

Achilles tendinopathy and patellofemoral pain are common running injuries associated with increased tendon (AT) forces joint (PFJ) stresses. This study examined AT PFJ stresses at different speeds in high-performing endurance runners. Twenty runners ran overground four (3.3, 3.9, 4.8, 5.6 m/s). were estimated from kinematic kinetic data. Repeated measures ANOVA partial eta squared effect sizes ...

Motivated by the industrial manufacture of organic light-emitting-diode displays, we formulate and analyse a mathematical model for evolution thin droplet in shallow axisymmetric well rather general shape both before after touchdown that accounts spatially non-uniform evaporation fluid, perform physical experiments using three cylindrical wells with different small aspect ratios, validate compa...

This paper investigates the integrated riser/vessel system which is subjected to random waves. Riser pipelines are the main components of the oil and gas offshore platforms. Whereas Iran country has been located on the fringes of Caspian Sea deep water, therefore study and research in this area is increasingly essential. The fluctuation of floating production causes the severe response and grea...

Modified thermal cycling conditions were explored in an effort to improve the reproducibility and resolving power of repetitive-element PCR (rep-PCR) fingerprinting. Assay performance was rigorously evaluated under standard and modified cycling conditions, using as a test set 12 strains putatively representing 12 serovars of Salmonella enterica. For all three fingerprint types (ERIC2, BOXA1R, a...