Results 31 to 40 of about 191,488 (182)

Linear motor for multi-car elevators, design and position measurement [PDF]

open access: yes, 2010
Multi-car elevator is an emerging technology consisting of two or more elevator cars moving independently in an elevator hoistway, which has become more appealing as building heights increase.
Gurbuz, Cagri   +4 more
core   +2 more sources

Effects of Scleral Search Coil Wear on Visual Function [PDF]

open access: yesInvestigative Opthalmology & Visual Science, 2003
The scleral search coil is widely regarded as the gold standard measurement technique for eye movements. The effect of wearing scleral search coils on human vision has not been systematically studied. However, there are anecdotal reports of degraded visual acuity, mild eye irritation, and an increase rise in intraocular pressure (IOP).
Elizabeth L, Irving   +3 more
openaire   +2 more sources

Optimal coil orientation for transcranial magnetic stimulation. [PDF]

open access: yesPLoS ONE, 2013
We study the impact of coil orientation on the motor threshold (MT) and present an optimal coil orientation for stimulation of the foot. The result can be compared to results of models that predict this orientation from electrodynamic properties of the ...
Lars Richter   +4 more
doaj   +1 more source

Search for Spin-Dependent Short-Range Force Using Optically Polarized $^3$He Gas [PDF]

open access: yes, 2012
We propose a new method to detect short-range \textit{P-} and \textit{T-} violating interactions between nucleons, based on measuring the precession frequency shift of polarized $^3$He nuclei in the presence of an unpolarized mass.
B. Lalremruata   +8 more
core   +2 more sources

The effect of scleral search coil lens wear on the eye [PDF]

open access: yesBritish Journal of Ophthalmology, 2001
Scleral search coils are used to measure eye movements. A recent abstract suggests that the coil can affect the eye by decreasing visual acuity, increasing intraocular pressure, and damaging the corneal and conjunctival surface. Such findings, if repeated in all subjects, would cast doubt on the credibility of the search coil as a reliable ...
Murphy, Paul   +3 more
openaire   +3 more sources

A Low-cost Electromagnetic Docking Guidance System for Micro Autonomous Underwater Vehicles

open access: yesSensors, 2019
As important observational platforms for the Smart Ocean concept, autonomous underwater vehicles (AUVs) that perform long-term observation in fleets are beneficial because they provide large-scale sampling data with a sufficient spatiotemporal resolution.
Shilin Peng   +6 more
doaj   +1 more source

Measurement of Sudden Displacements in Superconducting Coils using Search-coils

open access: yesTEION KOGAKU (Journal of the Cryogenic Society of Japan), 2009
Search-coils, which can detect magnetic field variations, have been applied to the measurement of superconducting coil displacements. The advantage of the search-coil is that it can measure displacements which occur in an arbitrary section of a superconducting coil without making contact with a winding.
Manabu AOKI   +4 more
openaire   +2 more sources

Analytical Calculation of Mutual Inductance of Search Coils in Interior Permanent Magnet Synchronous Motor

open access: yesWorld Electric Vehicle Journal
Inductance is an important parameter for motor design and control, and the performance of the motor is closely related to the inductance parameter. To solve the problem of the complex magnetic circuit structure of search coil mutual inductance, this ...
Xinmin Li   +3 more
doaj   +1 more source

Design of PCB search coils for AC magnetic flux density measurement

open access: yesAIP Advances, 2018
This paper presents single-layer, double-layer and ten-layer planar square search coils designed for AC magnetic flux density amplitude measurement up to 1 T in the low frequency range in a 10 mm air gap.
Michal Ulvr
doaj   +1 more source

Accurate calibration of test mass displacement in the LIGO interferometers [PDF]

open access: yes, 2009
We describe three fundamentally different methods we have applied to calibrate the test mass displacement actuators to search for systematic errors in the calibration of the LIGO gravitational-wave detectors.
  +38 more
core   +1 more source

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