Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 100 for “"flicker"”.
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Rod-cone interaction through flicker detection and the course of critical flicker frequency during dark adaptation
Critical flicker fusion (CFF) functions are reported during the course of dark adaptation under various states of cone and rod adaptation. Also, measurements were made of the stimulus intensity necessary to just perceive flicker for a wide range of frequencies. The resulting data clearly …
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Search for Magneto-Flicker Noise in Potassium
Submitted by Jesse Garrison (jagarris@illinois.edu) on 2012-01-11T18:22:22Z No. of bitstreams: 1 1974_hockett.pdf: 3448026 bytes, checksum: 5d12adcdede844f6c856d5df85f6e510 (MD5)
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Caffeine's influence on critical flicker frequency thresholds
… (aged 18 - 25 years) were measured for Critical Flicker Frequency (CFF) thresholds at 15 levels of retinal illuminance (-1.0 to 3.0 log trolands) in each of four caffeine dosage conditions (0, 200mg, 400mg, 600mg). Variables of interest included dosage, gender, left and right eye differences, and …
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Variations in critical flicker frequency with intersensory stimulation in two modalities
The present study tested hypotheses concerning magnitude of response to sensory stimulation in one mode, (CFF) relative to intensities of concurrent stimuli in two other modes, (weights and tones). Such heteromodal effects have been investigated under a variety of conditions. Reported results have …
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The Measurement of Mental Fatigue in Industry Using the Auditory Flicker Fusion Technique
The use of the Auditory Flicker Fusion (AFF) technique to measure mental fatigue in industry is a new area of investigation. The Visual Flicker Fusion (VFF) technique, which is the predecessor to AFF, has received most of the attention of the researchers, even though the AFF technique appears to be …
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Next Generation Phase-only LCOS Device with Ultra-low Phase Flicker for Holographic Applications
… of the phase levels, i.e., the so-called phase flicker. For instance, a large phase flicker means a low spatial information bandwidth for holographic 3D displays, high device level crosstalk for wavelength selective switches, or low trap stability of single atoms for holographic optical …
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Effects of Illumination and Viewing Angle on the Modeling of Flicker Perception in CRT Displays
… as part of a new ANSI/HFES 100 standard for CRT flicker. A graph based flicker prediction method developed from Farrell, 1987 was evaluated. The Farrell model is based on phosphor persistence, screen luminance, display size, and viewing distance. The graph based method assumes a worse case …
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Foveal critical flicker frequency as a function of synchronous stimulation in the periphery of the contralateral eye
Thesis (M.A.)--Michigan State University. Dept. of Psychology, 1968
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Effect of assessing glaucomatous optic disc changes using automated alternation flicker comparisons of serial optic disc stereophotographs
… of concordance among automated alternation flicker, traditional optic coherence tomography(OCT), and standard automated perimetry(SAP) in detecting progression of structural and functional glaucomatous damage. METHODS: A total of 83 eyes were selected randomly from patient records at …
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The effects of LED light flicker on turkey hen production, health, and welfare to 11 weeks of age
… examined the impacts of light-emitting-diode flicker on Nicholas Select turkey hens (n=3267) to 11 weeks (wk) of age. There were three treatments: the 30 Hertz (Hz) treatment (30HZ) the 90 Hz treatment (90HZ) and the 195 Hz treatment (195HZ). Birds were randomly assigned to nine independently …
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Effects of illuminance, luminance, viewing angle, and screen test pattern on the perception of flicker in CRT displays
… operators has also increased. The temporal flicker of display screens can be a significant source of this visual discomfort. The purpose of this research was to determine how illuminance, luminance, screen test pattern, and viewing angle affect the perception of flicker in a CRT, especially …
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Analysis and mitigation of the impacts of integrating fast-charging stations on the voltage fluctuations
… of these charging methods can lead to light flicker. When the estimated output power is utilized, the light flicker is higher compared to when the actual output power is utilized. When the operation of Fast Charging Stations causes a voltage fluctuation and light flicker, the FCSs may get …
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Non-invasive tuning of experience-dependent plasticity in the primary visual cortex
… 3 investigates the use of non-invasive light-flicker stimulation at different temporal frequencies as a means to unlock different forms of ODP in the adult mouse V1. Our results reveal that 60 Hz light-flicker stimulation reduces PNN levels and promotes a depression of deprived-eye responses …
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Characterization and modeling of low-frequency noise in MOSFETs
… low-frequency noise is mainly of two kinds: flicker or 1/f noise and random telegraph signal noise (RTS). The objective of this thesis is to characterize and to model the low-frequency noise by studying RTS and flicker noise under both constant and switched bias conditions. The effect of …
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Temporal Characteristics of Zebrafish Cone Types and Their Role in Separate Visual Processing
… about stimulus luminance, movement, and flicker while chromatic mechanisms signal color and detailed information. In order to signal rapid movement, the luminance channel transmits information more rapidly than the chromatic mechanism. While some lower vertebrates such as the zebrafish …
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Addressing theory and performance enhancements for the independent sustain and address AC plasma display
… and Address (ISA) AC plasma panel is a flat, flicker-free, gas discharge type of display device. This display technology promises to reduce both the cost of manufacturing and operation of AC plasma displays.
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The power quality of wind turbines in Sout Africa and their impacts on distribution networks
… The main focus is on voltage fluctuations and flicker as grid connected wind turbines could have a huge impact on these, especially when connected to weak distribution networks.
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A Modular Computational Framework for Integrating Motion and Chromatic Representations in Mice Retina
… moving-bar, looming, receding, and full-field flicker stimulation. Model predictions are evaluated against experimentally recorded flicker responses using correlation-based metrics. Results show that chromatic weighting systematically modulates the timing and magnitude of motion-evoked …
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