Search results for "centric"

Compressive behaviour of eccentrically loaded slender masonry columns confined by FRP

2018

Abstract Fibre Reinforced Polymer (FRP) confinement represents an effective tool for retrofitting masonry piers or columns enhancing their structural performance. This technique has been widely studied in the literature mainly with reference to short columns, while no extensive information is available on the influence of second order effects on its efficacy in case of slender members. Within this framework, the presented study concerns a simplified method able to assess the effects of FRP confinement on the compressive behaviour of slender masonry columns. A proper constitutive law of FRP confined masonry in compression is adopted for performing a sectional analysis, in which also consider…

INDAGINE SU prevalenza, Attitudini E CONOSCENZE Al riguardo Tabagismo TRA GLI STUDENTI DI MEDICINA: UNO STUDIO multicentrico IN ITALIA.

2009

Erratum: “Concentric transmon qubit featuring fast tunability and an anisotropic magnetic dipole moment” [Appl. Phys. Lett. 108, 032601 (2016)]

2018

Kritiskās fūzijas frekvences atkarība no tīklenes ekscentritātes

2017

Bakalaura darbs ir uzrakstīts latviešu valodā uz 33 lapām, satur 13 attēlu, 2 tabulas, 20 atsauces uz literatūras avotiem. Darba mērķis: novērtēt kristiskās fūzijas frekvences izmaiņu ātrumu, pārvietojoties no redzes lauka centra – foveolārās daļas uz perifēriju gan nazālajā, gan temporālajā virzienā. Dalībnieki: 9 cilvēki – emetropi, bez redzamām acu patoloģijām. Metode: Eksperimenta dalībnieki skatījās uz stimulu taisnvirzienā un novēroja mirgojošu stimulu, kurš mainīja pozīciju 20° ekscentricitātē gan nazāli, gan temporāli acij. Pētījums notika monokulāri. Dalībnieki brīvi izvēlējās, ar kuru aci novēros stimulu. Dalībnieka uzdevums bija pieskaņot mirgojošā stimula frekvenci tā, lai stimu…

Modulation of muscle-tendon interaction in the human triceps surae during an energy dissipation task.

2017

The compliance of elastic elements allows muscles to dissipate energy safely during eccentric contractions. This buffering function is well documented in animal models but our understanding of its mechanism in humans is confined to non-specific tasks, requiring a subsequent acceleration of the body. The present study aimed to examine the behaviour of the human triceps surae muscle-tendon unit (MTU) during a pure energy dissipation task, under two loading conditions. Thirty-nine subjects performed a single-leg landing task, with- and without added mass. Ultrasound measurements were combined with 3D kinematics and kinetics to determine instantaneous length changes of MTUs, muscle fascicles, A…

Studio multicentrico sul protocollo di revisione dell'uso dell'ospedale in ostetricia (pruo ostetrico)

2011

RESECTION of PRIMARY TUMOR at DIAGNOSIS in STAGE IV-s NEUROBLASTOMA: Does it Affect the Clinical Course?

1996

To determine whether resection of primary tumor has a favorable influence on outcome of infants (age 0 to 11 months) with IV-s Neuroblastoma.

Interaction between fascicle and tendinous tissues in short-contact stretch-shortening cycle exercise with varying eccentric intensities

2005

The interaction between fascicle and tendinous tissues (TT) in short-contact drop jumps (DJ) with three different drop heights [low (Low), optimal (OP), and high (High)] was examined with 11 subjects. The ground reaction force (F z) and ankle and knee joint angles were measured together with real-time ultrasonography (fascicle length) and electromyographic activities of the medial gastrocnemius (MG) and vastus lateralis (VL) muscles during the movement. With increasing drop height, the braking force and flight time increased from Low to OP ( P < 0.05). In High, the braking force increased but the flight time decreased compared with OP ( P < 0.05). During contact of Low and OP conditi…

Geometric optimal control of elliptic Keplerian orbits

2005

This article deals with the transfer of a satellite between Keplerian orbits. We study the controllability properties of the system and make a preliminary analysis of the time optimal control using the maximum principle. Second order sufficient conditions are also given. Finally, the time optimal trajectory to transfer the system from an initial low orbit with large eccentricity to a terminal geostationary orbit is obtained numerically.

Acute (0-2h) and delayed (2-8D) effects of exercise-induced muscle damage and soreness on elbow target movements.

2011

The aim was to examine the acute and delayed effects of exercise-induced muscle damage and soreness on elbow target movements (TM) performance and control. Ten males performed an exercise of 50 maximal eccentric elbow actions. TMs were performed at three movement ranges. Maximal forces, active stretch reflex and TM were tested, and muscle soreness, creatine kinase and elbow joint stiffness were determined acute (after and 2 h) and delayed (2, 4, 6, 8d) postexercise. Both the long lasting muscle soreness and force drop were observed after the exercise. Joint stiffness was increased at 2 h postexercise. The highest deterioration in flexion-TM performance was found at the time (2 h) and at the…