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Dissertations / Theses on the topic 'Focal Depths'

Author: Grafiati

Published: 6 July 2024

Last updated: 31 July 2025

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1

Huang, Paul Yi-Fa. "Focal depths and mechanisms of mid-ocean ridge earthquakes from body waveform inversion." Thesis, Massachusetts Institute of Technology, 1985. http://hdl.handle.net/1721.1/54310.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1986.<br>Microfiche copy available in Archives and Science<br>Bibliography: leaves 230-249.<br>by Paul Yi-Fa Huang.<br>Ph.D.

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2

Dahal, Nawa. "Improving the determination of moment tensors, moment magnitudes and focal depths of earthquakes below Mw 4.0 using regional broadband seismic data:." Thesis, Boston College, 2019. http://hdl.handle.net/2345/bc-ir:108624.

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Thesis advisor: Michael J. Naughton<br>Thesis advisor: John E. Ebel<br>Determining accurate source parameters of small magnitude earthquakes is important to understand the source physics and tectonic processes that activate a seismic source as well as to make more accurate estimates of the probabilities of the recurrences of large earthquakes based on the statistics of smaller earthquakes. The accurate determination of the focal depths and focal mechanisms of small earthquakes is required to constrain the potential seismic source zones of future large earthquakes, whereas the accurate determin

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3

Laporte, Marine. "Contribution à l'amélioration de l’estimation de la profondeur hypocentrale à partir de réseaux régionaux ou globaux." Electronic Thesis or Diss., Université Paris sciences et lettres, 2022. http://www.theses.fr/2022UPSLE055.

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Cette thèse s’intéresse aux différentes méthodes d’estimation de la profondeur hypocentrale ainsi qu’à la mise en évidence des incertitudes de localisation qui peuvent leur être associées. À distance régionale, on utilise ces méthodes pour cartographier les petites variations de profondeur hypocentrales liées à l’activité du grand chevauchement himalayen au Népal ou pour analyser des crises sismiques choisies selon l’actualité et les opportunités rencontrées durant ces trois ans de thèse. Les effets des différentes sources d’incertitudes sur l’estimation de la profondeur hypocentrale sont quan

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4

Hu, Xinda. "Development Of The Depth-Fused Multi-Focal-Plane Display Technology." Diss., The University of Arizona, 2014. http://hdl.handle.net/10150/338957.

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Conventional stereoscopic displays present a pair of stereoscopic images on a single and fixed image plane. In consequence, these displays lack the capability of correctly rendering focus cues (i.e. accommodation and retinal blur) and may induce the discrepancy between accommodation and convergence. A number of visual artifacts associated with incorrect focus cues in stereoscopic displays have been reported, limiting the applicability of these displays for demanding applications and daily usage. Depth-fused multi-focal-plane display was proposed to create a fixed-viewpoint volumetric display c

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5

Massey, Kristen L. "Procedural Calibration of Haploscope Wings to Establish Accurate Focal Vergence Depth." Thesis, Mississippi State University, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=10980275.

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<p> This thesis project was undertaken with the intent to discover the source of a known but hitherto unexplained error in the calibration of the wings for a haploscope used in depth perception studies. </p><p> The angles of the haploscope wings are used to control the vergence angle of the virtual images projected into each eye. This accounts for a strong depth cue used in AR and depth perception studies. Two experiments were devised to both display and attempt to characterize the error between the theoretical wing angles needed to cause a user’s vision to verge at some focal depth an

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6

Gupta, Divya. "An Empirical Study of the Effects of Context-Switch, Object Distance, and Focus Depth on Human Performance in Augmented Reality." Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/33507.

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Augmented reality provides its user with additional information not available through the natural real-world environment. This additional information displayed to the user potentially poses a risk of perceptual and cognitive load and vision-based difficulties. The presence of real-world objects together with virtual augmenting information requires the user to repeatedly switch eye focus between the two in order to extract information from both environments. Switching eye focus may result in additional time on user tasks and lower task accuracy. Thus, one of the goals of this research was to un

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7

Paerhati, Paruku. "Real-time monocular depth mapping system using variance of focal plane and pixel focus measure." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/113117.

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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2017.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (page 48).<br>Vision is one of the most powerful senses available to creatures. Undoubtedly, many of the fundamental operations of humans, such as the ability to plan paths, avoid obstacles, and recognize objects, depend heavily on

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8

Rodriguez, Joaquin. "Calibration and 3D vision with a color-polarimetric camera." Electronic Thesis or Diss., Bourgogne Franche-Comté, 2023. http://www.theses.fr/2023UBFCK062.

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Parmi les différentes modalités employées en détection, les capteurs de vision sont ceux qui fournissent le plus d'informations sur l'environnement. L'utilisation d'objectifs à courte focale permet en outre d'augmenter facilement la zone observée. L'apparition sur le marché d'imageurs couleurs et polarimétriques permet d'étendre encore davantage les applications en estimation de profondeur. En effet, les paramètres de polarisation de la lumière réfléchies ont liés à la nature des objets ainsi qu'à leur géométrie et peuvent être utilisés avantageusement. Dans cette thèse, notre objectif princip

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9

Kosmata, Marcel. "Elastische Rückstoßatomspektrometrie leichter Elemente mit Subnanometer-Tiefenauflösung." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-84041.

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In der vorliegenden Arbeit wird erstmals das QQDS-Magnetspektrometer für die höchstauflösende Ionenstrahlanalytik leichter Elemente am Helmholtz-Zentrum Dresden-Rossendorf umfassend vorgestellt. Zusätzlich werden sowohl alle auf die Analytik Einfluss nehmenden Parameter untersucht als auch Methoden und Modelle vorgestellt, wie deren Einfluss vermieden oder rechnerisch kompensiert werden kann. Die Schwerpunkte dieser Arbeit gliedern sich in fünf Bereiche. Der Erste ist der Aufbau und die Inbetriebnahme des QQDS-Magnetspektrometers, der zugehörige Streukammer mit allen Peripheriegeräten und des

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10

Jing, Ruei-Ci Jhang, and 張簡瑞祈. "Bionic Compound Eye Microlens Array With Multifocus and Long Focal Depth." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/82428857462599080295.

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碩士<br>國立中興大學<br>精密工程學系所<br>104<br>This study aims to develop a bionic compound eye microlens array with multifocus and high depth of field to improve a selected vision quality. There are seven layers of microlens array designed in the bionic compound eye. These microlens array will focus on the same point composed a visual system. There are two parts in this study. The first part is the calculation of each layer''s microlens array focus on the same surfaces, Then the light path can be simulate using fabricated by the optic simulation software, ZEMAX. The second part is the bionic microlens ar

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11

Sheng-HanLin and 林聖翰. "Relationship Between Aftershock Productivities and Earthquake Magnitude, Focal Depth and Heat Flow in Taiwan." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/37249302652499645442.

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12

Wang, Chih-Huang, and 王志煌. "Novel Reflective Type of Barcode Reader with Single LED Source, Microstructure and Long Focal Depth." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/12253199368931142439.

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碩士<br>國立臺灣科技大學<br>電子工程系<br>91<br>This paper presents a novel reflective type of barcode reader with single LED source, microstructure and long focal depth. We have designed the feasibility and it can achieve more high performance than conventional CCD bar code reader having scanning width and depth of field relating the spot size. And in this final result of simulation, the scanning length can achieve 114mm and the depth of focus is about 30mm. In design process, for the structure, we inject a new idea with reflection and microstructure into the bar code reader system. In addition t

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13

Lin, Hui-Hsiung, and 林暉雄. "Research on the Application for Long Focal Depth and Dual Wavelength Diffractive Optical Elements on Optical Pickup Heads." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/64503340463532049827.

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碩士<br>國立交通大學<br>光電工程所<br>88<br>In recent years, as the semiconductor technologies progress continuously, the high-tech industries have achieved considerable technical and commercial success. Furthermore, the consuming electronic products are also developed along the trends of lightweight, miniaturization, and multi-function. Some of the conventional optical elements have been replaced by diffractive optical elements (DOEs), which make the design of the optical pickup head system toward miniaturizing and modularizing. The application of diffractive optical elements with long focal de

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14

Hutchinson, Jesse. "Delineation of the Nootka fault zone and structure of the shallow subducted southern Explorer plate as revealed by the Seafloor Earthquake Array Japan Canada Cascadia Experiment (SeaJade)." Thesis, 2020. http://hdl.handle.net/1828/11768.

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At the northern extent of the Cascadia subduction zone, the subducting Explorer and Juan de Fuca plates interact across a translational deformation zone, known as the Nootka fault zone. The Seafloor Earthquake Array Japan-Canada Cascadia Experiment (SeaJade) was designed to study this region. In two parts (SeaJade I and II, deployed from July – September 2010 and January – September 2014), seismic data from the SeaJade project has led to several important discoveries. Hypocenter distributions from SeaJade I and II indicate primary and secondary conjugate faults within the Nootka fault zone. Co

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15

Kosmata, Marcel. "Elastische Rückstoßatomspektrometrie leichter Elemente mit Subnanometer-Tiefenauflösung." Doctoral thesis, 2011. https://tud.qucosa.de/id/qucosa%3A25920.

Full text

Abstract:

In der vorliegenden Arbeit wird erstmals das QQDS-Magnetspektrometer für die höchstauflösende Ionenstrahlanalytik leichter Elemente am Helmholtz-Zentrum Dresden-Rossendorf umfassend vorgestellt. Zusätzlich werden sowohl alle auf die Analytik Einfluss nehmenden Parameter untersucht als auch Methoden und Modelle vorgestellt, wie deren Einfluss vermieden oder rechnerisch kompensiert werden kann. Die Schwerpunkte dieser Arbeit gliedern sich in fünf Bereiche. Der Erste ist der Aufbau und die Inbetriebnahme des QQDS-Magnetspektrometers, der zugehörige Streukammer mit allen Peripheriegeräten und de

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