Results 1 to 10 of about 1,266,288 (42)

Don't break a leg: Running birds from quail to ostrich prioritise leg safety and economy in uneven terrain [PDF]

, 2014
Cursorial ground birds are paragons of bipedal running that span a 500-fold mass range from quail to ostrich. Here we investigate the task-level control priorities of cursorial birds by analysing how they negotiate single-step obstacles that create a ...
Alexander, Altendorfer, Bhounsule, Biewener, Biewener, Biewener, Birn-Jeffery, Blickhan, Blickhan, Blum, Blum, Bock, Byl, Carrier, Cavagna, Cavagna, Chang, Christiansen, Clark, Dai, Daley, Daley, Daley, Daley, Daley, Dial, Dietz, Dingwell, Donelan, Doube, Engberg, Erez, Ernst, Farley, Farlow, Ferris, Ferris, Full, Gatesy, Geyer, Grimmer, Guo, Hedrick, Holm, Hoyt, Hoyt, Hutchinson, Iriarte-Díaz, Jackson, Jindrich, Jindrich, Karssen, Kilbourne, Kohlsdorf, Kram, McMahon, McMahon, Minetti, More, Moritz, Moritz, Moritz, Moritz, Müller, Nagy, Nishikawa, Olberding, Padian, Rice, Roberts, Roberts, Rubenson, Sato, Schmitt, Seyfarth, Spagna, Sponberg, Srinivasan, Srinivasan, Taylor, Tobalske, Vejdani, Verheyen, Vogel, Walter, Watson, Westervelt, Yen   +87 more
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Local temperature-sensitive mechanisms are important mediators of limb tissue hyperemia in the heat-stressed human at rest and during small muscle mass exercise. [PDF]

, 2015
Limb tissue and systemic blood flow increases with heat stress, but the underlying mechanisms remain poorly understood. Here, we tested the hypothesis that heat stress-induced increases in limb tissue perfusion are primarily mediated by local temperature-
Ali, L, Banker, DS, Chiesa, ST, González-Alonso, J, Kalsi, KK, Lotlikar, MD, Rakobowchuk, M, Trangmar, SJ   +7 more
core   +1 more source

Understanding the three and four-leg inverter Space Vector [PDF]

, 2016
This paper shows a new point of view of the classical voltage space vectors and its implications on three and four-leg converters. It is easy to find in the literature, authors using bi-dimensional and threedimensional representations of the converter ...
Heredero Peris, Daniel, Llonch Masachs, Marc, Montesinos Miracle, Daniel, Rull Duran, Joan   +3 more
core   +1 more source

Hubbard ladders in a magnetic field [PDF]

, 2002
The behavior of a two leg Hubbard ladder in the presence of a magnetic field is studied by means of Abelian bosonization. We predict the appearance of a new (doping dependent) plateau in the magnetization curve of a doped 2-leg spin ladder in a wide ...
A. De Martino, Cabra D. C., D. C Cabra, Dagotto E., Dekker C., Dekker C., Gogolin A. O., Khveshchenko D. V., P Pujol, P Simon, Rice T. M.   +10 more
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Stroke-related Changes in Neuromuscular Fatigue of the Hip Flexors and Functional Implications [PDF]

, 2012
Objective: The aim of this study was to compare stroke-related changes in hip flexor neuromuscular fatigue of the paretic leg during a sustained isometric submaximal contraction with those of the nonparetic leg and controls and to correlate fatigue with ...
Heitz, Robert, Hunter, Sandra K., Hyngstrom, Allison, Onushko, Tanya, Rutkowski, Anthony, Schmit, Brian D.   +5 more
core   +2 more sources

Take-off mechanics in hummingbirds (Trochilidae) [PDF]

, 2004
Initiating flight is challenging, and considerable effort has focused on understanding the energetics and aerodynamics of take-off for both machines and animals.
Altshuler, Douglas L., Powers, Donald R., Tobalske, Bret W.   +2 more
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THE ROLE OF PREVIOUS ANTERIOR CRUCIATE LIGAMENT INJURY ON THE VARIABILITY OF JOINT KINEMATICS AND COORDINATION DURING A MATCH SPECIFIC LAND-CUT TASK [PDF]

, 2012
This study compared the movement and coordination variability of the previously injured leg of ACL injured subjects (ACLr, n=9), against their non-injured leg and a control (nACL, n=9) leg.
Breen, S, Harrison, AJ, Kenny, IC
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Cable-Driven Actuation for Highly Dynamic Robotic Systems

, 2018
This paper presents design and experimental evaluations of an articulated robotic limb called Capler-Leg. The key element of Capler-Leg is its single-stage cable-pulley transmission combined with a high-gap radius motor.
Hutter, Marco, Hwangbo, Jemin, Kolvenbach, Hendrik, Tsounis, Vassilios   +3 more
core   +1 more source

Mechanical work performed by individual limbs of transfemoral amputees during step-to-step transitions: Effect of walking velocity [PDF]

, 2014
The greater metabolic demand during the gait of people with a transfemoral amputation limits their autonomy and walking velocity. Major modifications of the kinematic and kinetic patterns of transfemoral amputee gait quantified using gait analysis may ...
BONNET, Xavier, FODÉ, Pascale, LAVASTE, François, PILLET, Hélène, VILLA, Coralie   +4 more
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Pulper vertical de 12 m3 de capacitat [PDF]

, 2005
El present Projecte Final de Carrera té com a títol “Pulper vertical de 12m3 de capacitat” i el principal objectiu que persegueix és la de dissenyar aquesta màquina i donar la informació suficient per a la seva fabricació, si es donés el cas.
Leg Moreno, Pedro
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