نتایج جستجو برای: elevation pedestal
تعداد نتایج: 71105 فیلتر نتایج به سال:
Corrugated disparity gratings mounted on depth pedestals were portrayed with random-dot stereograms in order to measure the cyclopean disparity modulation transfer function at various offsets from fixation. We found changes in both sensitivity as well as shape as the magnitude of the pedestal varied. Threshold disparity modulation amplitude curves, plotted as a function of corrugation frequency...
We describe a simple procedure for reducing ADC common noise in modular detectors that does not require additional hardware. A method using detector noise groups should work well for modular particle detectors such as segmented electromagnetic calorimeters, plastic scintillator hodoscopes, cathode strip wire chambers, segmented active targets, and the like. We demonstrate a “second pedestal noi...
Major plant and diagnostic developments on MAST have enabled important advances in support of ITER, definition of a component test facility (CTF) and the clarification of underlying tokamak physics. For example, L-H transition studies benefit from high spatial and temporal resolution measurements of pedestal profile evolution (temperature, density and radial electric field) and in support of pe...
Electrically driven subwavelength scale metallo-dielectric pedestal pillar lasers are designed and experimentally demonstrated. The metallo-dielectric cavity significantly enhances the quality factor (Q > 1500) of the wavelength and subwavelength scale lasers and the pedestal structure significantly reduces the threshold gain (< 400 cm(-1)) which can potentially enable laser operation at room t...
We highlight the necessity for evaluating and evolving the global axisymmetric radial electric field in a tokamak consistent with conservation of toroidal angular momentum for both € δf and full f gyrokinetic codes, where f is the full distribution function and € δf its departure from Maxwellian. We also consider the effects of a strong radial electric field in a subsonic pedestal in the banana...
We investigated the interactions between flicker thresholds and luminance pedestals using threshold versus contrast (TvC) and method of constant stimuli paradigms. High amplitude luminance pedestals were found to elevate flicker thresholds, but low amplitude luminance pedestals were unable to reduce flicker thresholds. Luminance pedestals elevated flicker thresholds more at low temporal frequen...
We report on a detailed study of magnetic fluctuations in the JET pedestal, employing basic theoretical considerations, gyrokinetic simulations, and experimental fluctuation data, to establish physical basis for their origin, role, distinctive characteristics. demonstrate quantitative agreement between simulations microtearing modes (MTMs) two frequency bands with corresponding toroidal mode nu...
We investigated the effect that spatially coincident luminance increments (luminance pedestals) have on flicker thresholds at several eccentricities and target sizes. Luminance pedestals elevated flicker amplitude-thresholds more when stimuli were presented eccentrically, both at low (4 Hz) and high (20 Hz) temporal frequencies. Altering the size of the eccentric stimulus failed to equate centr...
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