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Dissertations / Theses on the topic 'Time of flight imaging'

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1

Mei, Jonathan (Jonathan B. ). "Algorithms for 3D time-of-flight imaging." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/85609.

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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2013.<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 (pages 57-58).<br>This thesis describes the design and implementation of two novel frameworks and processing schemes for 3D imaging based on time-of- flight (TOF) principles. The first is a low power, low hardware complexity techni
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2

Petcher, P. A. "Time of flight diffraction and imaging (TOFDI)." Thesis, University of Warwick, 2011. http://wrap.warwick.ac.uk/49478/.

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Time of flight diffraction and imaging (TOFDI) is based on time of flight diffraction (TOFD), adding cross-sectional imaging of the sample bulk by exploiting the scattering of ultrasonic waves from bulk defects in metals. Multiple wave modes are emitted by a pulsed laser ultrasound ablative source, and received by a sparse array of receiving electromagnetic acoustic transducers (EMATs), for non-contact (linear) scanning, with mode-conversions whenever waves are scattered. Standard signal processing techniques, such as band-pass filters, reduce noise. A B-scan is formed from multiple data captu
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3

Lee, Jason W. L. "Novel developments in time-of-flight particle imaging." Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:195be057-7ce0-4a15-b639-b08892fde312.

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In the field of physical chemistry, the relatively recently developed technique of velocity-map imaging has allowed chemical dynamics to be explored with a greater depth than could be previously achieved using other methods. Capturing the scattering image associated with the products resulting from fragmentation of a molecule allows the dissociative pathways and energy landscape to be investigated. In the study of particle physics, the neutron has become an irreplaceable spectroscopic tool due to the unique nature of the interaction with certain materials. Neutron spectroscopy is a non-destruc
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4

Calvert, N. "Time-of-flight Compton scatter imaging for cargo security." Thesis, University College London (University of London), 2016. http://discovery.ucl.ac.uk/1503664/.

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By measuring the time of flight of scattered x-ray photons, the point of interaction, assuming a single scatter, can be determined, providing a three dimensional image of cargo containers. The present work introduces the technique, and provides experimental and theoretical results to show the feasibility of such a technique. Monte Carlo simulations were performed to investigate the proportion of multiple scatter detected using a proposed experimental setup, and it was found that it accounted for almost 50% of the recorded signal. Monte Carlo simulations of a scintillation detector were provide
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5

Noraky, James. "Algorithms and systems for low power time-of-flight imaging." Thesis, Massachusetts Institute of Technology, 2020. https://hdl.handle.net/1721.1/127029.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, May, 2020<br>Cataloged from the official PDF of thesis.<br>Includes bibliographical references (pages 151-158).<br>Depth sensing is useful for many emerging applications that range from augmented reality to robotic navigation. Time-of-flight (ToF) cameras are appealing depth sensors because they obtain dense depth maps with minimal latency. However, for mobile and embedded devices, ToF cameras, which obtain depth by emitting light and estimating its roundtrip time, can be power-hun
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6

Yoon, Oh Kyu. "Continuous time-of-flight mass spectrometric imaging of fragmented ions /." May be available electronically:, 2008. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.

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7

Westberg, Michael. "Time of Flight Based Teat Detection." Thesis, Linköping University, Department of Electrical Engineering, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-19292.

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<p>Time of flight is an imaging technique with uses depth information to capture 3D information in a scene. Recent developments in the technology have made ToF cameras more widely available and practical to work with. The cameras now enable real time 3D imaging and positioning in a compact unit, making the technology suitable for variety of object recognition tasks</p><p>An object recognition system for locating teats is at the center of the DeLaval VMS, which is a fully automated system for milking cows. By implementing ToF technology as part of the visual detection procedure, it would be pos
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8

Bhandari, Ayush. "Inverse problems in time-of-flight imaging : theory, algorithms and applications." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/95867.

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Thesis: S.M., Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2014.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 100-108).<br>Time-of-Fight (ToF) cameras utilize a combination of phase and amplitude information to return real-time, three dimensional information of a scene in form of depth images. Such cameras have a number of scientific and consumer oriented applications. In this work, we formalize a mathematical framework that leads to unifying perspective on tackling inverse problems tha
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9

Winter, Benjamin. "Novel methods in imaging mass spectrometry and ion time-of-flight detection." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:43db5039-0490-4f97-8519-4d3ed4e30ca3.

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Imaging mass spectrometry (IMS) in microscope mode allows the spatially resolved molecular constitution of a large sample section to be analysed in a single experiment. If performed in a linear mass spectrometer, the applicability of microscope IMS is limited by a number of factors: the low mass resolving power of the employed ion optics; the time resolution afforded by the scintillator screen based particle detector and the multi-hit capability, per pixel, of the employed imaging sensor. To overcome these limitations, this thesis concerns the construction of an advanced ion optic employing a
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10

Mutamba, Q. B. "Time of flight imaging with 3MeV neutrons based on the associated particle technique." Thesis, Swansea University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.638284.

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Spatial imaging using the time of flight (TOF) method with 3 MeV neutrons based on the associated particle technique has been demonstrated to produce a tomographic image of an aluminium test object. The imaging set-up used coincidence detection of the neutron-induced inelastic scattered gamma rays from the <SUP>27</SUP>Al(n,n'γ)<SUP>27</SUP> Al nuclear reaction in the test object, and the associated <SUP>3</SUP>He particles from the TiD self-implanted target. The test object was positioned 120 cm away from the target, and rotated in the neutron beam at 72 evenly spaced angles of orientation. T
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11

Berrueta, Razo Irma. "Molecular imaging of mouse brain tissue using Cluster Time-of-Flight Secondary Ion Mass Spectrometry." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/molecular-imaging-of-mouse-brain-tissue-using-cluster-timeofflight-secondary-ion-mass-spectrometry(a350dc50-5337-4d32-a95c-24c617bbba97).html.

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ToF-SIMS imaging has been drawing attention due to the wide range of applications in the biological and biomedical fields. These applications include the acquisition of quantitative and qualitative data that ranges in scale from single cells to organs, image visualisation and interpretation of biomarkers for diagnosis and development of pharmaceutics. This study focused on molecular imaging of mouse brain tissue sections using cluster primary ion beams. First, cluster ion beams were applied to comparative background studies of biomolecules and brain total lipid extract. Enhancement of the seco
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12

Dutton, Neale Arthur William. "CMOS SPAD-based image sensor for single photon counting and time of flight imaging." Thesis, University of Edinburgh, 2016. http://hdl.handle.net/1842/15968.

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The facility to capture the arrival of a single photon, is the fundamental limit to the detection of quantised electromagnetic radiation. An image sensor capable of capturing a picture with this ultimate optical and temporal precision is the pinnacle of photo-sensing. The creation of high spatial resolution, single photon sensitive, and time-resolved image sensors in complementary metal oxide semiconductor (CMOS) technology offers numerous benefits in a wide field of applications. These CMOS devices will be suitable to replace high sensitivity charge-coupled device (CCD) technology (electron-m
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13

Van, Nuffel Sebastiaan. "Three-dimensional time-of-flight secondary ion mass spectrometry imaging of primary neuronal cell cultures." Thesis, University of Nottingham, 2017. http://eprints.nottingham.ac.uk/39644/.

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Time-of-flight secondary ion mass spectrometry (ToF-SIMS) has proven its ability to characterise (in)organic surfaces, and is increasingly used for the characterisation of biological samples such as single cells. By combining ion imaging and molecular depth profiling it is possible to render 3D chemical images, which provides a novel, label-free way to investigate biological systems. Major challenges lie, however, in the development of data analysis tools and protocols that preserve the cell morphology. Here, we develop and employ such tools and protocols for the investigation of neuronal netw
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Nguyen, Krzysztof Quoc Khanh. "Characterisation of holographic projection as structured illumination in a Time-of-Flight based 3D imaging system." Thesis, University of Edinburgh, 2014. http://hdl.handle.net/1842/9953.

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This thesis describes work on a novel 3D imaging system that successfully implements optical feedback and noise rejection mechanisms. The system is a combination of three relatively new technologies, namely, holographic projection, Time of Flight (ToF) ranging and Single Photon Avalanche Diode (SPAD) sensors. Holographic projection is used to provide structured illumination with optical feedback instead of more commonly used uniform illumination in similar imaging systems. It is obtained using a Ferro-electric Liquid Crystal on Silicon Spatial Light Modulator (FLCoS SLM). The structured illumi
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15

Nair, Rahul [Verfasser], and Bernd [Akademischer Betreuer] Jähne. "Analysis and Modeling of Passive Stereo and Time-of-Flight Imaging / Rahul Nair ; Betreuer: Bernd Jähne." Heidelberg : Universitätsbibliothek Heidelberg, 2015. http://d-nb.info/1180395069/34.

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16

Sicre, Mathieu. "Study of the noise aging mechanisms in single-photon avalanche photodiode for time-of-flight imaging." Electronic Thesis or Diss., Lyon, INSA, 2023. http://www.theses.fr/2023ISAL0104.

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Les diodes à avalanche à photon unique (SPAD) sont utilisées pour les capteurs à temps de vol afin de déterminer la distance d'une cible. Cependant, ils sont sujets à des déclenchements parasites par des porteurs de charge générés de manière parasitaire, quantifiés en tant que taux de comptage dans l’obscurité (DCR), ce qui peut compromettre la précision de la distance mesurée. Pour résoudre ce problème, une méthodologie de simulation a été mise en place pour évaluer le DCR. Cela est réalisé en simulant la probabilité de claquage d'avalanche, intégrée avec le taux de génération de porteurs de
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17

Neimert-Andersson, Thomas. "3D imaging using time-correlated single photon counting." Thesis, Uppsala University, Signals and Systems Group, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-121104.

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<p>This project investigates a laser radar system. The system is based on the principles of time-correlated single photon counting, and by measuring the times-of-flight of reflected photons it can find range profiles and perform three-dimensional imaging of scenes. Because of the photon counting technique the resolution and precision that the system can achieve is very high compared to analog systems. These properties make the system interesting for many military applications. For example, the system can be used to interrogate non-cooperative targets at a safe distance in order to gather intel
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18

Schmidt, Mirko [Verfasser], and Bernd [Akademischer Betreuer] Jähne. "Analysis, Modeling and Dynamic Optimization of 3D Time-of-Flight Imaging Systems / Mirko Schmidt ; Betreuer: Bernd Jähne." Heidelberg : Universitätsbibliothek Heidelberg, 2011. http://d-nb.info/1179229568/34.

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19

Habteyes, Terefe Getaneh. "Electronic Structure and Photochemistry of Molecular and Cluster Anions via Tandem Time-of-Flight Mass Spectroscopy and Photoelectron Imaging." Diss., The University of Arizona, 2008. http://hdl.handle.net/10150/195955.

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Molecular and cluster anions have been investigated using a newly built tandem time-of-flight mass spectrometer combined with photoelectron imaging system. Solvation particularly hydration is shown not only to stabilize metastable anions such as CO₂⁻ in their ground state and impede autodetachment but also to alter the dynamics in the excited states. For instance, the 355 nm photoelectron image of mass-selected CO₂⁻(H₂O)(m) evolves from anisotropic to isotropic as m increases indicating excited state decay via electron autodetachment. Dissociation channels open at m=2 at 266 nm, resulting in O
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20

Hallman, L. (Lauri). "Single photon detection based devices and techniques for pulsed time-of-flight applications." Doctoral thesis, Oulun yliopisto, 2015. http://urn.fi/urn:isbn:9789526210445.

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Abstract In this thesis, a new type of laser diode transmitter using enhanced gain-switching suitable for use with a single photon avalanche diode (SPAD) detector was developed and tested in the pulsed time-of-flight laser range finding (lidar) application. Several laser diode versions were tested and the driving electronics were developed. The driving electronics improvements enabled a pulsing frequency of up to 1 MHz, while the maximum laser output power was about 5–40 W depending on the laser diode dimensions. The large output power is advantageous especially in conditions of strong photon
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21

Joblin, Anthony. "Resolution and contrast of a time domain transillumination breast imaging system." Thesis, Queensland University of Technology, 1998.

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22

Hongming, Guo. "IMPROVING MATRIX DEPOSITION FOR SURFACE LAYER MATRIX-ASSISTED LASER DESORPTION/IONIZATION TIME-OF-FLIGHT MASS SPECTROMETRY IMAGING (SL-MALDI-TOF MSI)." University of Akron / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=akron155654549756264.

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23

Tian, Hua. "Visualisation and profiling of lipids in single biological cells using time-of-flight secondary ion mass spectrometry." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/visualisation-and-profiling-of-lipids-in-single-biological-cells-using-timeofflight-secondary-ion-mass-spectrometry(c36313be-4ffd-4809-b5c9-8fbe1f720bd1).html.

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Imaging Time-of-Flight secondary ion mass spectrometry (ToF-SIMS) has been developed to perform 2D imaging and depth profiling of biological systems with micron or submicron scale lateral resolution, which can be attributed to the advent of polyatomic ion beam particularly C60+ and new concept of ToF-SIMS instrument, the J105 3D Chemical Imager (J105). These recent advances in ToF-SIMS have opened a new dimension for biological analysis. In this study, 2D and 3D imaging have been performed on two biological systems, Xenopus laevis (X. laevis) zygote/embryo and murine embryonic fibroblasts NIH
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Lu, Kuan. "Optimization Of Sublimation Conditions for Surface Layer Matrix-assisted Laser Desorption Ionization Time of Flight Mass Spectrometry Imaging (SL-MALDI- Tof MSI) of Polymer Surfaces." University of Akron / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1524846943404769.

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25

Yamamoto, Takayuki. "Magnetic resonance angiography with compressed sensing: an evaluation of moyamoya disease." Kyoto University, 2018. http://hdl.handle.net/2433/232119.

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26

Lamprou, Efthymios. "Development and Performance Evaluation of High Resolution TOF-PET Detectors Suitable for Novel PET Scanners." Doctoral thesis, Universitat Politècnica de València, 2021. http://hdl.handle.net/10251/162991.

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[ES] La Tomografía por Emisión de Positrones (PET) es una de las técnicas más importantes en la medicina de diagnóstico actual y la más representativa en el campo de la Imagen Molecular. Esta modalidad de imagen es capaz de producir información funcional única, que permite la visualización en detalle, cuantificación y conocimiento de una variedad de enfermedades y patologías. Áreas como la oncología, neurología o la cardiología, entre otras, se han beneficiado en gran medida de esta técnica. A pesar de que un elevado número de avances han ocurrido durante el desarrollo del PET, existen otros q
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Möller, Björn. "Full frame 3D snapshot : Possibilities and limitations of 3D image acquisition without scanning." Thesis, Linköping University, Department of Electrical Engineering, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2857.

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<p>An investigation was initiated, targeting snapshot 3D image sensors, with the objective to match the speed and resolution of a scanning sheet-of-light system, without using a scanning motion. The goal was a system capable of acquiring 25 snapshot images per second from a quadratic scene with a side from 50 mm to 1000 mm, sampled in 512×512 height measurement points, and with a depth resolution of 1 µm and beyond. </p><p>A wide search of information about existing 3D measurement techniques resulted in a list of possible schemes, each presented with its advantages and disadvantages. No single
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Huang, Huan. "Optimizing Deposition of Matrix and Ionization Salt via Two-Step Sublimation in Sample Preparation for Surface-Layer Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry Imaging (SL-MALDI-TOF MSI)." University of Akron / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=akron1619183035472425.

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29

Alokhina, Marharyta. "Design of the Cherenkov TOF whole-body PET scanner using GATE simulation." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS279/document.

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Dans cette thèse, nous présentons la conception et l’étude de performance d’un tomographe par émission de positrons (TEP) corps entier utilisant la radiation Cherenkov avec capacité de temps-de-vol (projet PECHE). Nos résultats et les conclusions sont basés sur la simulation GATE pour la configuration du scanner suivante: cristal de fluorure de plomb attaché à un photomultiplicateur à micro-canaux. C’est un cristal de haute densité, transparent pour les photons ultraviolet, et possède la fraction photoélectrique la plus élevé de 46%. Le photomultiplicateur choisi est un détecteur de grande tai
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Mirus, Matthew M., Sergey V. Tokalov, Gerald Wolf, Jerilyn Heinold, V. Prochnow, and Nasreddin Abolmaali. "Noninvasive assessment and quantification of tumour vascularisation using MRI and CT in a tumour model with modifiable angiogenesis – An animal experimental prospective cohort study." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-232305.

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Background To investigate vascular-related pathophysiological characteristics of two human lung cancers with modifiable vascularisation using MRI and CT. Methods Tumour xenografts with modifiable vascularisation were established in 71 rats (approval by the Animal Care Committee was obtained) by subcutaneous transplantation of two human non-small-cell lung cancer (NSCLC) cells (A549, H1299) either alone or co-transplanted with vascular growth promoters. The vascularity of the tumours was assessed noninvasively by MRI diffusion-weighted-imaging (DWI), T2-weighted, and time-of-flight (TOF) seque
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Sanchez, Washington Hugo. "Cataract affected infant lens tissue and protein specific mapping of intact tissue analysis by MALDI-TOF/MS." Thesis, Queensland University of Technology, 2002.

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32

Naik, Devang S. "Bose-Einstein Condensation: Building the Testbeds to Study Superfluidity." Diss., Available online, Georgia Institute of Technology, 2006, 2006. http://etd.gatech.edu/theses/available/etd-09072006-141453/.

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Thesis (Ph. D.)--Physics, Georgia Institute of Technology, 2007.<br>Davidovic, Dragomir, Committee Member ; Kennedy, T.A. Brian, Committee Member ; Chapman, Mike, Committee Member ; Raman, Chandra, Committee Chair ; Bunz, Uwe, Committee Member.
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Le, Sellier Francois 1974. "Discrete real-time flight plan optimization." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/50629.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1999.<br>Includes bibliographical references (leaves 117-118).<br>Worldwide, the continuously growing air traffic induces a need for new ATM concepts to be defined. One possibility is using a more decentralized system predicated mainly around free routings (Free Flight), for a more flexible management of airspace. The present study first highlights the discrepancies and inefficiencies of the current best flightplan optimizing software that use the Cost Index concept before departure. It then investigat
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34

Pettersson, Lucas. "Localization with Time-of-Flight cameras." Thesis, KTH, Numerisk analys, NA, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-273788.

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Time-of-Flight (ToF) cameras are becoming an increasingly common sensor in smartphones. These sensors are able to produce depth measurements in a grid at a relatively high rate. Using these depth measurements, point-clouds representing the captured scene can be produced. Previous research has been conducted in using ToF or LIDAR images to localize the camera. In this paper, we investigate several methods to localize the camera using point-clouds and surface meshes. Small alterations were made to some of the algorithms but the concepts remain the same. The main algorithms consisted of ICP varia
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Botling, Taube Amelie. "Molecular and epidemiological studies on eyes with pseudoexfoliation syndrome." Doctoral thesis, Uppsala universitet, Oftalmiatrik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-260714.

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Pseudoexfoliation (PEX) syndrome is an age-related condition characterized by the production and accumulation of extracellular fibrillary material in the anterior segment of the eye. PEX predisposes for several pathological conditions, such as glaucoma and complications during and after cataract surgery. The pathogenesis of PEX is not yet fully understood. It is multifactorial with genetics and ageing as contributing factors. We aimed to study the proteome in aqueous humor (AH) in PEX in order to increase the knowledge about its pathophysiology. Therefore, we developed sampling techniques and
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Kirmani, Ghulam A. (Ghulam Ahmed). "Computational time-resolved imaging." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/97803.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 151-159).<br>Classical photography uses steady-state illumination and light sensing with focusing optics to capture scene reflectivity as images; temporal variations of the light field are not exploited. This thesis explores the use of time-varying optical illumination and time-resolved sensing along with signal modeling and computational reconstruction. Its purpose is to create new imaging
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Costello, Kevin Francis. "Laser desorption time-of-flight mass spectrometry." Thesis, University of Edinburgh, 1991. http://hdl.handle.net/1842/13475.

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The techniques of supersonic molecular beam cooling and laser multiphoton ionisation (MPI) spectroscopy have been combined to give a potentially powerful analytical technique. Two methods of sample introduction into the molecular beam have been employed, namely resistive heating and laser desorption. The resistive heating method allowed 2-colour MPI spectra of naphthalene, anthracene and perylene to be recorded in a simple free jet apparatus. A sensitivity for anthracene of 600 ppb is estimated. A time-of-flight (TOF) mass spectrometer has been developed, incorporating both linear and reflecti
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Von, Zuben Francis S. G., and Alfred S. Jr David. "TIME SYNCHRONIZATION IN FLIGHT TEST DATA ANALYSIS." International Foundation for Telemetering, 2000. http://hdl.handle.net/10150/608278.

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International Telemetering Conference Proceedings / October 23-26, 2000 / Town & Country Hotel and Conference Center, San Diego, California<br>A recurring problem in flight testing navigation systems is the need for an accurate, common time reference for the system under test and for the truth source to which it is compared. Lockheed Martin Aeronautics Company and Computer Sciences Corporation have developed software that utilizes all available timing information to reference the times of validity for each navigation measurement to Coordinated Universal Time. This permits accurate comparison a
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Lekpor, Kossi. "Time-varying filtering of time-of-flight mass spectra for proteomics." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=81549.

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Proteomics is the post-genomic science that aims to identify and characterize the entire protein complement of a cell or organism. Mass spectrometry followed by database search is the core technology used in high-throughput protein identification. A major challenge in Proteomics is the random and chemical noise that corrupts mass spectra. This noise can alter the measured mass-to-charge ratio (m/z) and bias peak intensities, thus leading to errors in peptide ion peak detection. Thus, noise reduction by filtering is necessary prior to data analysis.<br>As mass spectrometer response varie
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Albani, David. "Constrained positron flight in PET imaging via strong magnetic fields." Connect to resource, 2008. http://hdl.handle.net/1811/32134.

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Gilkerson, Paul. "Digital signal processing for time of flight sonar." Thesis, University of Oxford, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343467.

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Armitage, Nolan Jennifer Claire. "Time of flight mass spectrometry of pharmaceutical systems." Thesis, University of Nottingham, 2013. http://eprints.nottingham.ac.uk/13701/.

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Time-of-flight secondary ion mass spectrometry (ToF-SIMS) is a widely used surface chemical analysis technique that is traditionally employed to characterise the first few molecular layers of a material interface. The ability of this technique to accurately reflect the surface chemistry of polymers, biomaterials and many other solid materials is well documented. However, the majority of research that utilises this technique is based upon a qualitative rather than quantitative assessment of the material under investigation. The qualitative analysis of a range of traditional tablet and bead form
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Teerikoski, Sakari. "A prototype backscattering neutron time-of-flight spectrometer." Thesis, Uppsala universitet, Tillämpad kärnfysik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-256783.

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Measuring neutron energies is an essential task in fusion research. The time-of-flight (TOF) of neutrons moving a known distance can be used to determine these energies. Slower neutrons have longer TOFs for fix flight paths. Neutrons are slowed down when they backscatter. A prototype backscattered neutron TOF spectrometer is constructed so that two detectors D1 and D2 are placed on respective sides of a neutron source. The goal is to measure the TOF of neutrons from the source that reach D1 and backscatter and reach D2. There can, however, be lots of background events that will look like a fal
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Heatherington, John. "ToF - the Time-of-Flight device for H1." Thesis, Queen Mary, University of London, 1995. http://qmro.qmul.ac.uk/xmlui/handle/123456789/1502.

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Event triggering for the H1 detector on the HERA electron-proton ring is dominated by background associated with the proton beam. A 99% reduction in trigger rate is achieved by time resolution of background from physics using ToF -a scintillator detector positioned in the incoming proton direction. Studies on the efficiency of the veto have been carried out to improve background rejection.
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45

Grisham, Joe P. 1950. "Phase enhanced time-of-flight magnetic resonance angiography." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/46454.

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46

Kegel, Thomas, and Bruce Lipe. "THE ADAPS REAL-TIME / POST FLIGHT PROCESSING SYSTEM." International Foundation for Telemetering, 1999. http://hdl.handle.net/10150/607324.

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International Telemetering Conference Proceedings / October 25-28, 1999 / Riviera Hotel and Convention Center, Las Vegas, Nevada<br>This paper describes the Real-Time/Post-Flight Processing System (RT/PFP) developed under the Air Force Flight Test Center (AFFTC) Advanced Data Acquisition and Processing Systems (ADAPS) development program. The RT/PFP is currently being deployed at all Range Division Mission Control Facilities as the principal Range Division telemetry processing system. This paper provides an overview of the RT/PFP system, its current capabilities, and future enhancements b
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PATUREAU, Philippe, and Douglas ULLAH. "REAL TIME PRESENTATION FOR RAFALE IN-FLIGHT TESTS." International Foundation for Telemetering, 1991. http://hdl.handle.net/10150/612913.

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International Telemetering Conference Proceedings / November 04-07, 1991 / Riviera Hotel and Convention Center, Las Vegas, Nevada<br>The current control rooms at Dassault Aviation, Istres were built in 1978 for the flight tests of the MIRAGE 2000 GENERATION. After 13 years of gradual improvements, the time has come to renew our instrumentation. New concepts and future technologies have been taken into consideration and the new equipment that is implemented must allow flight tests to be performed throughout the current decade. These changes have occurred to enable testing of a new breed of com
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48

Davies, Stephen James. "Remote techniques for time-of-flight flaw characterisation." Thesis, University of Warwick, 1991. http://wrap.warwick.ac.uk/108293/.

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This thesis describes the investigations conducted into the characterisation of various defects within solids using laser - generation and interferometric detection of ultrasound. Laser - generated ultrasound has advantages over the more commonly used piezoelectric transducers in that it is a reproducible, wide bandwidth, non - contact source which, by using appropriate optics, can be focussed to a point or line source and easily scanned over a surface. Used in association with an interferometric detector enables the possibility of a remote inspection system which would be useful for some appl
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Zou, Xiaoming. "Models to measure mobilities by time-of-flight /." The Ohio State University, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=osu1486462702468012.

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50

Kuball, Silke. "Emissionsdichteschätzung bei Time-of-Flight Positronen Emissions-Tomographie." [S.l. : s.n.], 2002. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB9935146.

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