Results 31 to 40 of about 22,311,692 (253)

Ultrasonic Assisted Machining Overview: Accessing Feasibility and Overcoming Challenges for Milling Applications

Metals, 2023
Machinability, along with its associated facets, is a critical parameter that ultimately determines the cost of machining. Its optimization, however, is inherently limited by the current technology.
Henrique Martins, Hélder Puga
doaj   +1 more source

Kinematic analysis of quick-return mechanism in three various approaches [PDF]

, 2011
Članak se bavi kinematičkom analizom Whitwordovog mehanizma koja je izvedena u tri različite metode. Suvremene metode su računalno potpomognute s posebnim softverom za analizu obrade, koji može simulirati ne samo gibanje mehanizma, već može odrediti i ...
Monka, Peter, Jan Valíček, Valíček, Jan, Peter Monka, Sergej Hloch, Monková, Katarína, Katarína Monková, Hloch, Sergej   +7 more
core   +1 more source

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)

Геофизический 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, J.-C. Hippolyte, Ye. Sheremet, T. Yegorova   +3 more
doaj   +1 more source

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

Biomechanics, 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, Guillermo Beckmann, Ethan Ramos, Frances A. Rangel, Roger V. Gonzalez   +4 more
doaj   +1 more source

Kinematic analysis of handwriting movements in patients with Alzheimer's disease, mild cognitive impairment, depression and healthy subjects [PDF]

, 2003
A variety of studies have demonstrated that motor disorders, parkinsonism and extrapyramidal motor symptoms (EPMS) are common in patients with Alzheimer's disease (AD).
Hampel, H., Mergl, R., Hegerl, Ulrich, Möller, Hans-Jürgen, Burger, K., Schroter, A.   +5 more
core   +1 more source

Kinematic Analysis of an Omnidirectional Tracked Vehicle

Applied 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

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

Frontiers 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, Keita Higashi, Akari Ikeda, Naoto Kadono, Eiichiro Tanaka, Louis Yuge   +5 more
doaj   +1 more source

Generalized Jacobian analysis of lower mobility manipulators [PDF]

, 2011
Mainly drawing on screw theory and linear algebra, this paper presents a general approach for Jacobian analysis of lower mobility manipulators. Given the definitions of twist/wrench spaces and their subspaces of the end-effector, the underlying ...
Huang, Tian, Chetwynd, D. G., Liu, H. T., D.G. Chetwynd, H.T. Liu, T. Huang   +5 more
core   +1 more source

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

Machines
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, Marco Carnevale, Hermes Giberti   +2 more
doaj   +1 more source

Geotechnical Study of Raspadalica Cliff Rockfall, Croatia

Applied 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, Branko Kordić, Željko Arbanas   +2 more
doaj   +1 more source