Results 21 to 30 of about 114,156 (214)

Recent and paleo-stresses at the northern margin of the Black Sea and the Crimea Mountain in Meso-Cenozoic—Quarter (according to mechanisms of earthquakes foci and field tectonophysical data)

open access: yesГеофизический журнал, 2018
Recent stress fields at the northern margin of the Black Sea have been characterized on the base of 32 mechanisms of the earthquakes foci. Orientations of compression axes in the foci give evidence that present-day tectonic process takes place under ...
A. Murovskaya   +3 more
doaj   +1 more source

Optimization of a Cost-Constrained, Hydraulic Knee Prosthesis Using a Kinematic Analysis Model

open access: yesBiomechanics, 2023
Approximately 82% of amputees prefer microprocessor knees (MPKs) to the passive alternatives. However, the cost of these devices makes them inaccessible for many patients.
Lucas Galey   +4 more
doaj   +1 more source

Robotic ankle control can provide appropriate assistance throughout the gait cycle in healthy adults

open access: yesFrontiers in Neurorobotics, 2022
Ankle foot orthoses are mainly applied to provide stability in the stance phase and adequate foot clearance in the swing phase; however, they do not sufficiently assist during the entire gait cycle.
Kei Nakagawa   +5 more
doaj   +1 more source

Geotechnical Study of Raspadalica Cliff Rockfall, Croatia

open access: yesApplied Sciences, 2022
The Raspadalica Cliff is an almost vertical 100 m high limestone cliff with a railway line at its foot and is known for numerous rockfall occurrences in the past.
Dalibor Udovič   +2 more
doaj   +1 more source

Kinematic Analysis of an Omnidirectional Tracked Vehicle

open access: yesApplied Sciences
This article addresses the problem of controlling an omni-tracked vehicle equipped with parallel, fully overlapping omnidirectional tracks. A kinematic model is presented that enables the determination of the vehicle body’s displacement relative to the ...
Mateusz Fiedeń
doaj   +1 more source

Kinematic variations due to changes in pace during men's and women's 5 km road running [PDF]

open access: yes, 2011
The purpose of this study was to investigate variations in kinematic parameters in men's and women's 5 km road racing. Athletes often vary their pace and changes particularly tend to occur towards the end of a race due to fatigue and sprint finishes ...
Smith, LC   +8 more
core   +1 more source

Inverse kinematic analysis for triple-octahedron variable-geometry truss manipulators

open access: yes, 2001
In this paper, a new triple-octahedron variable-geometry truss manipulator is presented. Its inverse kinematic solutions in closed form are studied. An input-output displacement equation in one output variable is derived.
Xu, L. J.   +7 more
core   +1 more source

Tailor-Made Hand Exoskeletons at the University of Florence: From Kinematics to Mechatronic Design

open access: yesMachines, 2019
Recently, robotics has increasingly become a companion for the human being and assisting physically impaired people with robotic devices is showing encouraging signs regarding the application of this largely investigated technology to the clinical field.
Nicola Secciani   +7 more
doaj   +1 more source

Analysis of Kinematic Crosstalk in a Four-Legged Parallel Kinematic Machine

open access: yesMachines
Human-in-the-loop (HIL) immersive simulators integrate a human operator into the simulation loop, enabling real-time interaction with virtual environments. To expose users to controlled acceleration fields, they employ parallel kinematic machines (PKMs),
Giuseppe Mangano   +2 more
doaj   +1 more source

Design and Parameter Optimization of a Reciprocating In-Soil Cutting Device in a Green Leafy Vegetable Orderly Harvester

open access: yesApplied Sciences
Based on the single-crank linkage mechanism and the double-pendulum rod mechanism, herein, a reciprocating swing single-blade cutting device is appropriately designed for the needs of GLVs’ planting and cutting operations.
Yue Jin   +3 more
doaj   +1 more source

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