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Dissertations / Theses on the topic 'Photo-Scanning'

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1

Chen, Li. "Investigation into the sensitivity and resolution of scanning photo-induced impedance microscopy." Thesis, Queen Mary, University of London, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.510792.

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2

Talabani, Habib. "Investigation into the impedance imaging technique scanning photo-induced impedance microscropy (SPIM)." Thesis, University of Sheffield, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.412789.

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3

Giordano, Maria. "Matrici geometriche del decoro architettonico. Photo-Scanning, reverse engineering e processi CAD/CAM." Doctoral thesis, Universita degli studi di Salerno, 2011. http://hdl.handle.net/10556/157.

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2009 - 2010<br>La ricerca si applica allo studio di decorazioni compositive a matrice geometrica originate dalle mutevoli combinazioni di forme elementari: la divisione regolare del piano con forme chiuse che lo ricoprono completamente, senza sovrapporsi e senza mai lasciare spazi vuoti. Operando su di esso, si inizia a quantificarlo, individuando ogni sua singola parte: la misurazione conduce alla scomposizione in forme elementari di figure complesse. Nello sviluppo di tali configurazioni, il problema della replica è sempre presente, dalla mera idea progettuale fino alle azioni di restauro,
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4

Sanders, Jennifer A. "An evaluation of photo CD's resolving power in scanning various-speed films for archival purposes /." Online version of thesis, 1996. http://hdl.handle.net/1850/11988.

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5

Hicks, Susan J. "Digital archiving and reproduction of black and white photography /." Online version of thesis, 1996. http://hdl.handle.net/1850/11919.

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6

Church, William Travis. "Laser Activated Bonding of Wood." Thesis, Virginia Tech, 2010. http://hdl.handle.net/10919/76888.

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It was found that laser modified wood surfaces can be bonded together to create a wood composite without the need of any additive. This bonding method removes the need of applying adhesive, potentially lowers cost, and eliminates off gassing of petroleum resins, creating a wood product with many eco-friendly attributes. This body of work outlines a) initial chemical analysis of the laser modified surface b) its bond strength and c) the optimization of factors that control the strength of the bond. Surface chemical analysis on laser modified wood was conducted using photo acoustic Fourier trans
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7

Mathew, Allen. "Photothermal studies on cryoprotectant media." Thesis, Littoral, 2018. http://www.theses.fr/2018DUNK0478/document.

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La mise en place, l'étalonnage et l'utilisation d'un nouveau banc expérimental basses températures basé sur une technique photothermique appelée photo pyroélectricité (PPE) sont décrits dans ce manuscrit. Les échantillons que nous avons étudiés en utilisant ce nouvel instrument sont le glycérol, le 1,2 propanediol et leurs mélanges binaires avec l'eau. Ce sont des cryoprotecteurs bien connus (CPAs) utilisés dans la cryoconservation, qui est une technique de préservation des cellules et tissus vivants en les refroidissant à des très basses températures. Le but ultime de la cryoconservation est
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8

Wu, Fan. "Investigation of light-addressable potentiometric sensors for electrochemical imaging based on different semiconductor substrates." Thesis, Queen Mary, University of London, 2017. http://qmro.qmul.ac.uk/xmlui/handle/123456789/30903.

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Light-addressable potentiometric sensors (LAPS) and scanning photo-induced impedance microscopy (SPIM) have been extensively applied as chemical sensors and biosensors. This thesis focuses on the investigation of LAPS and SPIM for electrochemical imaging based on two different semiconductor substrates, silicon on sapphire (SOS) and indium tin oxide (ITO) coated glass. Firstly, SOS substrates were modified with 1,8-nonadiyne self-assembled organic monolayers (SAMs), which served as the insulator. The resultant alkyne terminals provided a platform for the further functionalization of the sensor
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9

Giuliano, Jérémy. "Érosion des falaises de la région Provence-Alpes-Côte d’Azur : évolution et origine de la morphologie côtière en Méditerranée : télédétection, géochronologie, géomorphologie." Thesis, Nice, 2015. http://www.theses.fr/2015NICE4126/document.

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L’intérêt croissant pour l’étude de la morphogénèse des côtes à falaises a permis de mieux appréhender les environnements méso/macrotidaux, mais en délaissant les environnements microtidaux. Pour cette raison, nous proposons d’étudier, à partir d’une approche exploratoire multi-échelle, la dynamique érosive des côtes à falaises en Méditerranée à travers l’exemple de la région Provence-Alpes-Côte d’Azur. Le choix de ce territoire s’est justifié en réponse à une problématique relative à la gestion des risques côtiers identifiée par le Conseil-Régional-PACA qui a financé ce travail doctoral. Les
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10

Ahmed, Mustafa M. Abdalla. "Alternating-Current Thin-Film Electroluminescent Device Characterization." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-233432.

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Jádrem této disertační práce bylo studovat optické a elektrické charakteristiky tenkovrstvých elektroluminiscenčních součástek řízených střídavým proudem (ACTFEL) a zejména vliv procesu stárnutí luminiforů na jejich optické a elektrické vlastnosti. Cílem této studie měl být příspěvek ke zvýšení celkové účinnosti luminoforů, vyjádřené pomocí jasu, účinnosti a stability. Vzhledem k tomu, že současnou dominantní technologií plochých obrazovek je LCD, musí se další alternativní technologie plošných displejů porovnávat s LCD. Výhodou ACTFEL displejů proti LCD je lepší rozlišení, větší teplotní rozs
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11

郭首位. "Photo-assisted Scanning Probe Microscopy and Spectroscopy Studies of Nanowires." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/56714757970837495836.

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12

Chu, Tien-Fu, and 朱天福. "Influence of Photo-illumination on specimen stability in scanning capacitance microscopy." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/83871589527050894465.

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碩士<br>國立中興大學<br>物理學系所<br>102<br>Sample preparation for scanning capacitance microscopy (SCM) significantly influences the accuracy of SCM measurements. Especially, the quality of the oxide layer on sample surface including surface roughness of the oxide layer, interface traps, and charges in the oxide layer is decided by sample preparation. These factors influencing the oxide qualities induce capacitor-voltage curve distortion and shift, and hence lead to exceptional differential capacitor (dC/dV) signal intensity. In this article, a short-wavelength semiconductor laser was employed to investi
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13

Lin, C.-Y., and 林志遠. "Photo-assisted local poling of photoreactive copolymer thin films with scanning probe technique." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/31569540800422296222.

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碩士<br>國立中正大學<br>物理所<br>96<br>In the past, the photoreactive polymer was studied by the all-optical experiment system. However, there are some shortcomings in the all-optical experiment system. For example, the space resolution limits by optical diffraction limit and the destruction of direction of molecular during the all-optical analysis. So we propose a novel approach based on the scanning probe microscopy (SPM). Local poling was made by the probe of AFM beyond diffraction limit, then measured directly by the electric force microscopy which can avoid the optical destruction. The polymer film
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14

Parsaei, Homayoon. "Transmission dosimetry with a scanning liquid filled electronic portal imaging device for megavoltage photo beams." Thesis, 1997. http://hdl.handle.net/2429/5838.

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An important question with respect to radiation therapy is to what degree of accuracy, dose delivery can be achieved in clinical practice. It is well understood that accurate delivery of a specific radiation dose to a target volume is critical to the success of radiation therapy. The use of portal imaging in radiotherapy for verification of field size, shape, orientation and patient setup is of vital importance in delivering successful radiation treatment. One of the modalities used in improving tumor localization and geometric verification of field sizes is the on-line electronic porta
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15

Yeh, Yi-Chang, and 葉怡昌. "The Development of New Rapid Mask Base Photo-Polymer Curing System Using Line Scanning Visible Light." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/70357361335310414775.

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博士<br>國立臺灣科技大學<br>機械工程系<br>87<br>The purpose of this research is to develop a new Line Scanning Mask Base Photo-curing System (LSM) using visible light. The approach of this new developed system is using a photo mask to shadow a layer which the area under the shadow will not be cured in the process of line scanning. Besides, the area where the light could pass through will be cured. The light source used in this project is a high power Xe lamp. Optical fiber is used to guide the light and to form a uniform energy line type light. In order to reduce the photo polymer wasted during pa
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16

Cheng, Ming-Chih, and 鄭名志. "Imaging the Photo-Induced Electronic Properties of Grain Size Evolution in Perovskite-based Solar Cell by Scanning Tunneling Microscopy." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/21754841840687437802.

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碩士<br>國立臺灣師範大學<br>物理學系<br>104<br>The recent studies show that intermixing quantum crystal PbS with the active light-absorber (〖CH〗_3 〖NH〗_3 〖PbI〗_(3-x) 〖Cl〗_x) film in perovskite solar cell enlarges the grain size, which can be exceeded to 4µm. The quantum crystal in perovskite increases not only power conversion efficiency over 17.4%, but also the diffusion length. In order to investigate the variation of the electronic properties of the perovskite solar cell film in dark and under illumination condition, scanning tunneling microscopy (STM) was utilized to study the topography images and loca
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17

Cloete, William Edward. "Photoinitiated cyanoacrylates for fast underwater bonding." Diss., 2009. http://hdl.handle.net/2263/28899.

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Strong underwater bonds between polycarbonate sheet and various other substrates were achieved using ethyl 2-cyanoacrylate gel cured with an anionic photoinitiator (dibenzoylferrocene). The gel reacts quickly with water on contact and forms a protective polyethyl cyanoacrylate (PECA) skin. This provides a diffusion barrier that protects the inner monomer from further reaction with or polymerisation by water (hydroxide ions). The PECA skin is, however, permeable to water and the inner monomer slowly reacts as water diffuses through the PECA skin. The application procedure for this adhesive is c
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18

"Evaluation of Compound Semiconductors for Infrared Photo-Detection Applications." Doctoral diss., 2017. http://hdl.handle.net/2286/R.I.44103.

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abstract: In this dissertation research, conventional and aberration-corrected (AC) transmission electron microscopy (TEM) techniques were used to evaluate the structural and compositional properties of thin-film semiconductor compounds/alloys grown by molecular beam epitaxy for infrared photo-detection. Imaging, diffraction and spectroscopy techniques were applied to TEM specimens in cross-section geometry to extract information about extended structural defects, chemical homogeneity and interface abruptness. The materials investigated included InAs1-xBix alloys grown on GaSb (001) substrates
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