Results 251 to 260 of about 55,372 (282)
Some of the next articles are maybe not open access.
An Analysis of Ocular Counter-rolling Measured with Search Coils
Acta Oto-Laryngologica, 1989Ocular counter-rolling (OCR) was studied by using a scleral search coil magnetic system in normal subjects and in pathological cases. Normal ocular counter-rolling was 2.7 degrees-7 degrees when the head was tilted 10 to 30 degrees. In most cases of benign paroxysmal positional vertigo, the OCR to the ipsilateral side was reduced, while that to the ...
S, Takemori, M, Tanaka, H, Moriyama
openaire +2 more sources
Search of Short Circuits in the Superconducting Coils of the ATLAS Detector
IEEE Transactions on Appiled Superconductivity, 2005The detection of a short circuit inside the superconducting coils of the ATLAS detector after their installation in the casing is mandatory for the mechanical and electrical safety during a fast discharge of the magnet. The detection of a short circuit by means of a capacitor discharge becomes very difficult once the coils are integrated inside the ...
E. Acerbi +4 more
openaire +2 more sources
Monte-Carlo Search for Snakes and Coils
2012The “Snake-In-The-Box” problem is a hard combinatorial search problem, first described more than 50 years ago, which consists in finding longest induced paths in hypercube graphs. Solutions to the problem have diverse and some quite surprising practical applications, but optimal solutions are known only for problems of small dimension, as the search ...
openaire +1 more source
Noise calculation and analysis of a search coil magnetometer
2010 International Conference on Computer Application and System Modeling (ICCASM 2010), 2010For expertise on detecting very weak signal, search coil magnetometer is widely used in Magnetotellurics (MT). Unfortunately, noise is a primary factor affecting the sensitivity. In this work, noise model of the magnetometer is presented based on measured parameters, where transfer function affected by core eddy current loss is considered.
null Zhao Yifei +4 more
openaire +1 more source
The Use of Search Coils for Magnetic Measurements
International Journal of Electrical Engineering & Education, 1982The basic principle of search coils is explained by reference to the integral form of Maxwell's equation. The salient features of instrumentation, necessary for search coil applications, are discussed, followed by a brief description of a few typical examples of magnetic measurements by a variety of search coils.
openaire +1 more source
Research of Core Characteristics of Search Coil Magnetometer
Advanced Materials Research, 2012In this paper, the theory of apparent permeability and effective permeability of the core is described. The apparent permeability with coil in different positions of the core is investigated and simulated by HFSS. The best location of the coil is determined according to the curves of the apparent permeability.
Qun Yu, Hou Bo Zhang, Guan Nan Lin
openaire +1 more source
Search-coil head-thrust and caloric tests in Ménière's disease
Acta Oto-Laryngologica, 2005Our findings suggest that canal function is substantially preserved in subjects with active vertigo attacks as a result of Ménière's disease (MD). In these subjects, the head-thrust test (HTT) may not be as sensitive to canal dysfunction as traditional caloric testing.
Hong Ju, Park +4 more
openaire +2 more sources
Improving the homogeneity of the magnetic field in the magnetic search coil technique
IEEE Transactions on Biomedical Engineering, 2001The magnetic search coil technique is used to obtain accurate eye-movement measurements. For the data analysis it must be assumed that the magnetic field does not change over time (apart from the required modulation). To comply with this assumption either no translational movements of the eye coil(s) are allowed or the magnetic field has to be ...
Jochen Ditterich, Thomas Eggert
openaire +2 more sources
Reconsideration of Bell's phenomenon using a magnetic search coil method
Documenta Ophthalmologica, 1992The exact direction, amplitude and time course of Bell's phenomenon is still controversial. We evaluated the eye movements associated with spontaneous blinks, voluntary blinks and prolonged eyelid closure using a magnetic search coil method. Spontaneous blinks were accompanied by transient downward and nasalward eye movements, and similar movement ...
M, Takagi, H, Abe, S, Hasegawa, T, Usui
openaire +2 more sources
Nystagmus of Pelizaeus-Merzbacher Disease A Magnetic Search-Coil Study
Archives of Neurology, 1991Magnetic search-coil oculography of three brothers with clinically diagnosed Pelizaeus-Merzbacher disease disclosed the presence of binocular elliptical pendular nystagmus in two patients in whom the waveform of the nystagmus was not obvious on inspection. This study, the first reported application of high-resolution oculography to Pelizaeus-Merzbacher
J D, Trobe +3 more
openaire +2 more sources