Results 121 to 130 of about 109,784 (295)

A new portable 3-D gyroscope system for the evaluation of upper limb function [PDF]

open access: yes, 2005
This study aims to develop a lightweight, portable and cost effective system for 3D motion analysis of the upper limb which can be readily applied within a clinical ...
Chan, A.M., Nicol, A.C.
core  

Influence of optical aberrations in an atomic gyroscope

open access: yes, 2005
In atom interferometry based on light-induced diffraction, the optical aberrations of the laser beam splitters are a dominant source of noise and systematic effect.
A. Clairon   +18 more
core   +3 more sources

A Large‐Area, Stretchable Accelerometer Array for Spatial Assessment of Chest Compressions in Cardiopulmonary Resuscitation

open access: yesFlexTech, EarlyView.
A large‐area stretchable accelerometer array enables multi‐point monitoring of chest compression depth and thoracic contour reconstruction during CPR, offering high spatiotemporal resolution for dynamic deformation tracking and providing a new pathway toward intelligent, feedback‐based resuscitation systems. ABSTRACT High‐quality chest compressions are
Tianrun Xu   +5 more
wiley   +1 more source

Autonomous navigation system [PDF]

open access: yes, 1981
An inertial navigation system utilizing a servo-controlled two degree of freedom pendulum to obtain specific force components in the locally level coordinate system is described.
Merhav, S. J.
core   +1 more source

Local spacetime effects on gyroscope systems

open access: yes, 2013
We give a precise theoretical description of initially aligned sets of orthogonal gyroscopes which are transported along different paths from some initial point to the same final point in spacetime.
Pfeifer, Christian   +1 more
core   +1 more source

Constraints on Kaluza-Klein gravity from Gravity Probe B

open access: yes, 2013
Using measurements of geodetic precession from Gravity Probe B, we constrain possible departures from Einstein's General Relativity for a spinning test body in Kaluza-Klein gravity with one additional space dimension. We consider the two known static and
Everett, R. D.   +2 more
core   +1 more source

Gate tunable MoS2 memristive neuron for early fusion of visual and acoustic signals spiking neural network

open access: yesInfoMat, EarlyView.
Current brain‐inspired computing chips require complex additional circuits to operate effectively, making them bulky and inefficient. We have created a single adjustable artificial neuron device made from MoS2 that can dynamically modulate its behavior on demand, eliminating the need for extra circuits and enabling it to process different types of ...
Yanming Liu   +10 more
wiley   +1 more source

Sagnac interferometry with coherent vortex superposition states in exciton-polariton condensates

open access: yes, 2015
We investigate prospects of using counter-rotating vortex superposition states in non-equilibrium exciton-polariton Bose-Einstein condensates for the purposes of Sagnac interferometry. We first investigate the stability of vortex-antivortex superposition
Byrnes, Tim   +3 more
core   +1 more source

Flexible ionic pressure sensors: From migration‐electronic mechanisms to emerging iontronic paradigms

open access: yesInfoMat, EarlyView.
Mechanisms, materials, structures, and applications of the FIPSs. Abstract Flexible ionic pressure sensors (FIPS) have emerged as promising candidates for bridging the gap between electronics and biologically compatible interfaces. Unlike previous reviews, which focused primarily on materials or devices, this review presents a classification of FIPS ...
Mengjie Wang   +10 more
wiley   +1 more source

Faraday–Ramsey Rotation in Ultrathin Alkali Vapor Cells as an Analogy to Atomic‐Beam Systems

open access: yesLaser &Photonics Reviews, EarlyView.
This work demonstrates that ultrathin rubidium vapor cells can emulate atomic‐beam behavior through geometry‐dependent velocity filtering. Employing a spatially separated pump–probe scheme and Faraday–Ramsey rotation, the study reveals coherent atomic dynamics without buffer gas or anti‐relaxation coatings. This approach offers a compact pathway toward
Mark Dikopoltsev   +4 more
wiley   +1 more source

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