Results 1 to 10 of about 501,724 (364)

On a Theorem in Kinematics [PDF]

open access: greenProceedings of the London Mathematical Society, 1885
n ...
J. J. Walker
openalex   +4 more sources

Identification of kinematics understanding of physics students at the university in coastal area [PDF]

open access: yesBIO Web of Conferences, 2023
The phenomena of kinematics are a physics concept that is close to the daily life of students. However, most students do not realize this and often ignore it. As a result, when testing their understanding of kinematics using contextual examples (cases in
Dwi Sundari Putri   +2 more
doaj   +1 more source

Real-Time Stereo-Based Ocean Surface Mapping for Robotic Floating Platforms: Concept and Methodology

open access: yesSensors, 2023
Consider the case of a small, unmanned boat that is performing an autonomous mission. Naturally, such a platform might need to approximate the ocean surface of its surroundings in real-time.
Or Greenberg, Boaz Ben-Moshe
doaj   +1 more source

A Robust and Accurate Landing Methodology for Drones on Moving Targets

open access: yesDrones, 2022
This paper presents a framework for performing autonomous precise landing of unmanned aerial vehicles (UAVs) on dynamic targets. The main goal of this work is to design the methodology and the controlling algorithms that will allow multi-rotor drones to ...
Assaf Keller, Boaz Ben-Moshe
doaj   +1 more source

Assessment of virtual teacher feedback for the recovery of the upper limb after a stroke. Study protocol for a randomized controlled trial. [PDF]

open access: yesRehabilitacja Medyczna, 2016
Enhanced feedback provided by virtual reality has been shown to promote motor learning both in healthy subjects and patients with motor impairments following lesions of the central nervous system.
Pawel Kiper   +8 more
doaj   +1 more source

The effect of robot therapy assisted by surface EMG on hand recovery in post-stroke patients. A pilot study [PDF]

open access: yesRehabilitacja Medyczna, 2018
Background: Hemiparesis caused by a stroke negatively limits a patient’s motor function. Nowadays, innovative technologies such as robots are commonly used in upper limb rehabilitation.
Katarzyna Dziemian   +7 more
doaj   +1 more source

Power Line Charging Mechanism for Drones

open access: yesDrones, 2021
The use of multirotor drones has increased dramatically in the last decade. These days, quadcopters and Vertical Takeoff and Landing (VTOL) drones can be found in many applications such as search and rescue, inspection, commercial photography ...
Boaz Ben-Moshe
doaj   +1 more source

Functionality Analysis of Derailment Containment Provisions through Full-Scale Testing—I: Collision Load and Change in the Center of Gravity

open access: yesApplied Sciences, 2022
In order to reduce the large damage caused by train derailment, protective facilities of various shapes and conditions can be installed on railroad tracks.
Hyun-Ung Bae   +5 more
doaj   +1 more source

Kinematical superspaces [PDF]

open access: yesJournal of High Energy Physics, 2019
Abstract We classify N =1 d = 4 kinematical and aristotelian Lie superalgebras with spa- tial isotropy, but not necessarily parity nor time-reversal invariance. Employing a quater- nionic formalism which makes rotational covariance manifest and simplifies many of the calculations, we find a list of 43 isomorphism classes of Lie ...
José Figueroa-O’Farrill, Ross Grassie
openaire   +4 more sources

DEM Analysis of Track Ballast for Track Ballast–Wheel Interaction Simulation

open access: yesApplied Sciences, 2020
This study aims to suggest a rational analysis method for a track ballast–wheel interaction that could be further developed to model the interaction in a train-derailment event, based on the discrete-element method (DEM).
Nam-Hyoung Lim   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy