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Dissertations / Theses on the topic 'Hydrogen Pulse'

Author: Grafiati

Published: 4 June 2021

Last updated: 18 February 2022

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1

Plumridge, Jonathan. "Multielectron dissociation and ionization of small molecules probed by intense laser fields." Thesis, University of Reading, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343322.

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Kaufmann, Sven. "Generation of H-Atom Pulses and Associative Desorption of Hydrogen Isotopologues from Metal Surfaces." Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2017. http://hdl.handle.net/11858/00-1735-0000-002E-E3A5-8.

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3

Alligrant, Timothy. "Mechanistic Studies on the Electrochemistry of Proton Coupled Electron Transfer and the Influence of Hydrogen Bonding." VCU Scholars Compass, 2010. http://scholarscompass.vcu.edu/etd/2212.

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This research has investigated proton-coupled electron transfer (PCET) of quinone/hydroquinone and other simple organic PCET species for the purpose of furthering the knowledge of the thermodynamic and kinetic effects due to reduction and oxidation of such systems. Each of these systems were studied involving the addition of various acid/base chemistries to influence the thermodynamics and kinetics upon electron transfer. It is the expectation that the advancement of the knowledge of acid/base catalysis in electrochemistry gleaned from these studies might be applied in fuel cell research, ch

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4

Myers, David John. "OXYGEN AND HYDROGEN STABLE ISOTOPE RATIOS IN MISSISSIPPI RIVER FLOODPLAIN INVERTEBRATES: IMPLICATIONS FOR DISPERSAL AND FOOD WEB ANALYSIS." OpenSIUC, 2010. https://opensiuc.lib.siu.edu/theses/311.

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Understanding energy fluxes within and between floodplain water bodies, and between rivers and their floodplains is essential for comprehending the dynamics of modern, altered river systems. Floodplain aquatic invertebrates may move between habitats deliberately (through emergence and dispersal) or through passive transport during flooding. This movement may represent a significant flux of energy and an essential food web subsidy. I assessed the usefulness of the stable isotopes of hydrogen and oxygen (D and 18O respectively) for identifying the origins and movements of macroinvertebrates i

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5

Chapin, David Michael. "A Study of Deflagration To Detonation Transition In a Pulsed Detonation Engine." Thesis, Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7526.

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A Pulse Detonation Engine (PDE) is a propulsion device that takes advantage of the pressure rise inherent to the efficient burning of fuel-air mixtures via detonations. Detonation initiation is a critical process that occurs in the cycle of a PDE. A practical method of detonation initiation is Deflagration-to-Detonation Transition (DDT), which describes the transition of a subsonic deflagration, created using low initiation energies, to a supersonic detonation. This thesis presents the effects of obstacle spacing, blockage ratio, DDT section length, and airflow on DDT behavior in hydrogen-a

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6

Lekbir, Choukri. "Effet de la déformation plastique du nickel monocristallin sur l'état d'équilibre de l'hydrogène en surface et subsurface." Thesis, La Rochelle, 2012. http://www.theses.fr/2012LAROS368.

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Le présent travail a pour objectif d’étudier la synergie entre la déformation plastique et les processus d’adsorption et d’absorption de l’hydrogène en surface et en subsurface du nickel monocristallin. La Réaction d’Evolution de l’Hydrogène (REH) et l’absorption de l’hydrogène en subsurface (RAH)partagent le plus souvent l’intermédiaire commun : l’hydrogène adsorbé (Hads). Le chemin réactionnel de la REH sur des surfaces de nickel (100) en milieu acide sulfurique peut être présenté par un mécanisme de Volmer-Heyrovsky. Les paramètres cinétiques élémentaires correspondants comme les coefficien

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7

Santana, Aloísio de Jesus. "Dinâmica molecular da reação de abstração de hidrogênio no MH4 (M = C, Si, Ge, Sn) por átomos de H, F, Cl e I induzida por pulso de laser de femtosegundos." Universidade Federal de Sergipe, 2012. https://ri.ufs.br/handle/riufs/6045.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>In this study, it has been carried out quantum molecular dynamics simulations for the hydrogen abstraction reaction from methane, silane, germane and stannane by H, F, Cl and I atoms and being or not being induced by femtosecond laser pulses with the aim to favor the dissociation of the M-H (M = C, Si, Ge and Sn). All the simulations have been performed using a simulation scheme based on ab initio calculations of molecular dynamics, where the motion of the atomic nuclei is described classically while the electrons are treated quant

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8

Stuckey, Philip A. "Kinetic Studies and Electrochemical Processes at Fuel Cell Electrodes." Case Western Reserve University School of Graduate Studies / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=case1322675454.

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9

Vanne, Yulian V. "Ionization of molecular hydrogen in ultrashort intense laser pulses." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2010. http://dx.doi.org/10.18452/16107.

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Ein neuer numerischer ab initio Ansatz wurde entwickelt und zur Lösung der zeitabhängigen Schrödingergleichung für zweiatomig Moleküle mit zwei Elektronen (z.B. molekularer Wasserstoff), welche einem intensiven kurzen Laserpuls ausgesetzt sind, angewandt. Die Methode basiert auf der Näherung fester Kernabstände und der nicht-relativistischen Dipolnäherung und beabsichtigt die genaue Beschreibung der beiden korrelierten Elektronen in voller Dimensionalität. Die Methode ist anwendbar für eine große Bandbreite von Laserpulsparamtern und ist in der Lage, Einfachionisationsprozesse so

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10

COUTANCE, PASCAL. "Etude du laser cu/hbr. Son application au pompage d'une chaine laser sa/ti." Université Joseph Fourier (Grenoble), 1996. http://www.theses.fr/1996GRE10253.

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Un laser cu/hbr de plus de 100 watts a 18 khz avec un rendement a la prise de 1. 4% a ete construit au laboratoire. Nous l'avons caracterise au niveau des performances et de la qualite de faisceau. Nous avons montre que son profil d'intensite en champ lointain est parfaitement symetrique et quasi-gaussien avec une divergence de 3 fois la limite de diffraction en cavite instable axiale contrairement au profil d'un laser a vapeur de cuivre classique. Une simulation nous permet de retrouver les caracteristiques du champ lointain pour le laser cu/hbr et de montrer, avec l'appui de nos resultats ex

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11

Tolchard, J. M. "Doppler free laser spectroscopy of atomic hydrogen using pulsed lasers." Thesis, University of Southampton, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383868.

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12

Wallwork, Andrew Lindsay. "Pulsed-nozzle, Fourier-transform, microwave spectroscopy of weakly hydrogen bonded dimers." Thesis, University of Exeter, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293048.

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13

Arena, Christopher Brian. "Advancements in Irreversible Electroporation for the Treatment of Cancer." Diss., Virginia Tech, 2013. http://hdl.handle.net/10919/50605.

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Irreversible electroporation has recently emerged as an effective focal ablation technique. When performed clinically, the procedure involves placing electrodes into, or around, a target tissue and applying a series of short, but intense, pulsed electric fields. Oftentimes, patient specific treatment plans are employed to guide procedures by merging medical imaging with algorithms for determining the electric field distribution in the tissue. The electric field dictates treatment outcomes by increasing a cell's transmembrane potential to levels where it becomes energetically favorable for the

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14

Popat, Yaksh Jyotindra. "Synthesis and characterization of nanocatalysts for applications in water purification and hydrogen production." Doctoral thesis, Università degli studi di Trento, 2019. http://hdl.handle.net/11572/246086.

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The thesis focuses on synthesis and characterization of nanocatalysts for applications in wastewater treatment and hydrogen production through electrochemical water splitting. Different photocatalysts and electrocatalysts are synthesized using wet chemistry techniques as well as Pulsed Laser Deposition (PLD). The synthesized catalysts pave demonstrate excellent catalytic activity thereby paving way for their use on an industrial scale.

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15

Rolong, Andrea. "Tissue Engineered Scaffolds and Three Dimensional Tumor Constructs to Evaluate Pulsed Electric Field Treatments." Diss., Virginia Tech, 2018. http://hdl.handle.net/10919/97320.

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This work investigates the use of irreversible electroporation (IRE) for tissue engineering applications and as a cancer ablation therapy. IRE uses short, high-intensity electric pulses to create pores in a cell's membrane and disrupt its stability. At a certain energy level, damage to the cell becomes too great and it leads to cell death. The particular mechanisms that drive this response are still not completely understood. Thus, further characterization of this behavior for cell death induced by pulsed electric fields (PEFs) will advance the understanding of these types of therapies and enc

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Ivey, Jill Winters. "Investigating the Applications of Electroporation Therapy for Targeted Treatment of Glioblastoma Multiforme Based on Malignant Properties of Cells." Diss., Virginia Tech, 2017. http://hdl.handle.net/10919/78806.

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Glioblastoma multiforme (GBM) is the most common and lethal primary brain cancer with an average survival time of 15 months. GBM is considered incurable with even the most aggressive multimodal therapies and is characterized by near universal recurrence. Irreversible electroporation (IRE) is a cellular ablation method currently being investigated as a therapy for a variety of cancers. Application of IRE involves insertion of electrodes into tissue to deliver pulsed electric fields (PEFs), which destabilize the cell membrane past the point of recovery, thereby inducing cell death. While this tr

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17

Lange, Karsten [Verfasser]. "Electrode structuring by ultrashort laser pulses : a new tool for the hydrogen economy / Karsten Lange." Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2019. http://d-nb.info/1188406442/34.

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18

Vempati, Venkata Surya Raghuram. "Remote detection of hydrogen leak using Nd:YAG pulsed laser induced dual line detection Rayleigh light scattering." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0008640.

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19

Poláčik, Ján. "Pulzní generování vodíku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231825.

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The thesis deals with water electrolysis focusing in particular on pulse electrolysis. The theoretical part characterizes hydrogen and its properties as well as the ways of its use and storage. It also analysis various methods of hydrogen generation. It examines in details water electrolysis and its energetic and chemical balance. There is also an evaluation of water electrolysis efficiency and its improvement followed by pulse electrolysis description. Laboratory equipment for direct current and pulsed direct current hydrogen production are suggested. Theoretical expectations are tested exper

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20

Connell, John G. "EFFECT OF HYDROGEN EXPOSURE ON THE ELECTRONIC AND OPTICAL PROPERTIES OF INSULATING TITANATES." UKnowledge, 2019. https://uknowledge.uky.edu/physastron_etds/65.

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Hydrogen exposure of insulating d0-titanates, such as SrTiO3 (STO), has displayed the formation of intriguing conducting states. These conducting states form through the use of forming gas (N2/H2) annealing or hydrogen plasma exposure, where hydrogen gas is exposed to high energy microwaves. The exposure of STO to hydrogen causes metallic conductivity due to the introduction of hydrogen cations on some of the oxygen sites. However, the optical properties of this hydrogen-exposed STO have not been well-studied. Further, Ba0.5Sr0.5TiO3 (BST), an insulating dielectric, also shows changes in its c

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21

Lefèvre, Gauthier. "Propriétés physico-chimiques de nouveaux matériaux en couches minces pour le stockage d'hydrogène." Thesis, Artois, 2018. http://www.theses.fr/2018ARTO0406.

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Le stockage d'hydrogène est sans doute le dernier verrou au développement à grande échelle des piles à combustible. Utiliser l'hydrogène comme vecteur énergétique, produire efficacement de l'électricité sans avoir recours aux énergies fossiles et rejeter uniquement de l'eau, il s'agit là peut-être de la prochaine révolution technologique, écologique et qui signera la fin des problèmes environnementaux en terme d'énergie.L'hydrogène gazeux est dangereux et son stockage à l'état solide représente une solution mais au détriment de la quantité stockée et des conditions d'utilisation.Dans ce contex

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22

Favet, Thomas. "Conversion de l'énergie solaire en carburant H2 par photoélectrolyse de l'eau sur des matériaux nanohybrides à base de TiO2/nanoparticules." Thesis, Strasbourg, 2019. http://www.theses.fr/2019STRAF068.

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L'hydrogène s'avère être un vecteur d'énergie stockable et non carboné particulièrement séduisant. Une approche prometteuse pour la production propre et durable d'H2 est la photoélectrolyse de l'eau. Ce projet vise à modifier les propriétés du TiO2 utilisé comme photoanode dans une cellule photoélectrochimique, pour améliorer la production d'H2 sous lumière solaire. La nanostructuration du TiO2 sous forme de nanotubes (NTs) est un bon moyen d'améliorer sa réactivité et la séparation spatiale des charges. Une étude basée sur une stratégie de co-alliage, consistant à introduire une grande quanti

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23

Liu, Chang. "Structure, mechanical and tribological properties of hydrogen-free amorphous carbon films deposited by dual-frequency mode pulsed-DC magnetron sputtering." Thesis, University of Sheffield, 2017. http://etheses.whiterose.ac.uk/17921/.

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Amorphous carbon (hydrogenated and hydrogen-free) films have attracted much attention during the past few decades due to their unique properties such as high hardness, low coefficient of friction (CoF) and low wear rate. Compared with the hydrogenated amorphous carbon films, hydrogen-free amorphous carbon (a-C) films, with higher hardness, are believed to have better tribological properties especially in humid environments. Different deposition parameters (or techniques) will strongly affect the microstructure of the a-C films and thus influence their mechanical and tribological properties. Fo

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24

Elghobashi, Nadia. "Theory of using few cycle IR and UV laser pulses to control the orientation and selective dissociation of hydrogen bonded anions." [S.l.] : [s.n.], 2005. http://www.diss.fu-berlin.de/2006/23/index.html.

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25

Cabaret, Louis. "Réalisation d'une source laser pulse monomode et accordable en longueur d'onde dans l'ultra-violet lointain : contribution à l'étude de l'atome d'hydrogène en présence d'un champ électrique." Paris 11, 1986. http://www.theses.fr/1986PA112341.

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Cette thèse rend compte de la réalisation d’un système laser pulsé monomode et accordable en longueur d’onde émettant dans l’ultra-violet lointain. A la longueur d’onde de la raie Lyman alpha de l’hydrogène, la largeur spectrale de l’émission laser est inférieure à 350 mégahertz et la dynamique de balayage continue en fréquence est supérieure à 900 gigahertz ; la puissance crête émise est d’une dizaine de watts pendant 8 nanosecondes, avec un taux de répétition de 10 hertz. La spectroscopie de la raie Lyman alpha a été effectuée sur un jet d’hydrogène atomique doté d’une forte collimation (100

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26

Jobunga, Eric Ouma. "Beyond-the-dipole effects in strong-field photoionization using short intense laser pulses." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät, 2016. http://dx.doi.org/10.18452/17653.

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Die Entwicklung Freier-Elektronen-Laser und einer neuen Generation von Strahlungsquellen erlaubt die Realisierung hoher Intensitäten und kurzer Pulsdauern. Im Regime niedriger Laserintensitäten war bisher die Dipolnäherung recht erfolgreich bei der Beschreibung der durch die Licht-Materie-Wechselwirkung erzeugten Dynamik, wodurch viele experimentell beobachtete Resultate reproduziert werden konnten. Bei den durch die neuen Strahlungsqullen erzeugten bisher unerreichten Intensitäten und Rönten-Wellenlängen kann die Dipolnäherung allerdings zusammenbrechen. Höhere Multipol-Wechselwirkungen, die

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27

Yang, Xin. "Study of the hydrogen-tungsten interaction for fusion : measurement of the atomic reflection coefficient by laser spectroscopy." Thesis, Aix-Marseille, 2017. http://www.theses.fr/2017AIXM0232.

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Les interactions plasma surface (PSI) sont considérées comme l'un des défis scientifiques majeurs de la fusion nucléaire magnétique contrôlée. L'interaction entre les isotopes d'hydrogène et les matériaux de l’enceinte à plasma tels que le tungstène revêt une importance particulière. Le coefficient de perte en surface des isotopes atomiques (γ) est un point clé dans les études PSI. Il peut donner des informations sur le recyclage de l'hydrogène atomique à la paroi et constitue ainsi un paramètre clé dans les modélisations des interactions plasma surface. Le but de ce projet est de déterminer l

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Kaufmann, Sven [Verfasser], Alec [Akademischer Betreuer] Wodtke, Alec [Gutachter] Wodtke, et al. "Generation of H-Atom Pulses and Associative Desorption of Hydrogen Isotopologues from Metal Surfaces / Sven Kaufmann ; Gutachter: Alec Wodtke, Dirk Schwarzer, Jürgen Troe, Jörg Schroeder, Ricardo Mata, Thomas Zeuch ; Betreuer: Alec Wodtke." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2018. http://d-nb.info/1155360362/34.

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29

Abedinzadeh, Zohreh. "Etude cinetique de la reaction du glutathion avec l'eau oxygenee : contribution a l'etude de la chimie radicalaire du glutathion." Paris 5, 1987. http://www.theses.fr/1987PA05S008.

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Le glutathion, GSH, est le thiol non protéinique le plus abondant de la plupart des cellules. Les propriétés nuclëophiles et réductrices de la fonction thiol confèrent au glutathion de nombreux rôles dont le plus important est la réduction de l'eau oxygénée, en présence de glutathion peroxydase, conduisant à la formation de glutathion oxydé GSSG. Le couple oxydorêducteur à deux électrons GSH/GSSG est mal connu. Concernant l'étude cinétique de l'action de l'eau oxygénée avec le glutathion pour des rapports de concentrations [GSH]O / [H202]o ≤2, nous avons montré que la réaction globale d'oxydat

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30

Kalus, Jiří. "Napájecí zdroj pro kyslíkovodíkovou svářečku." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-242010.

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Master´s thesis deals with design of oxy-hydrogen generator power supply for gas welder. Main topic of this thesis is a design of switching mode power supply, which leads to smaller dimensions and weight. Thesis includes design PCB and final measured parameters of this power supply.

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Jasmina, Anojčić. "Voltametrijske metode zasnovane na primeni jednostavnih i savremenih elektroda/senzora na bazi ugljeničnih materijala za određivanje vodonik-peroksida u odabranim uzorcima." Phd thesis, Univerzitet u Novom Sadu, Prirodno-matematički fakultet u Novom Sadu, 2018. https://www.cris.uns.ac.rs/record.jsf?recordId=107685&source=NDLTD&language=en.

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Cilj  ove  doktorske  disertacije  je  bio  razvoj  brzih  i  pouzdanih  voltametrijskih  metoda zasnovanih na primeni jednostavnih i savremenih elektroda/senzora na bazi ugljeničnih materijala (ugljenične  paste  napravljene  od  grafitnog  praha  i  parafinskog  ulja  i  &scaron;tampanih  ugljeničnih elektroda)  za  određivanje  H <sub>2</sub>O<sub>2 </sub>u  odabranim  složenim  model  i  realnim  uzorcima.  U  tu  svrhu, i

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Sorin, Rémy. "Etude et optimisation de la Transition Déflagration Détonation (TDD) en tube des mélanges stoechiométriques H2/O2/N2 et (CH4, C2H2, C2H4 et C3H8)/O2/N2 et de sa Transmission à un espace de plus grande dimension." Phd thesis, Poitiers, 2005. http://www.theses.fr/2005POIT2258.

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La mise au point d’un Propulseur aérobie à détonation pulsée nécessite l’amélioration de la Transition Déflagration Détonation (TDD) et de la transmission de la détonation à la chambre de combustion du mélange réactif utilisé. La recherche a consisté à réduire les temps et longueurs de TDD (tTDD, LTDD) en tube par l’introduction d’obstacles répétitifs. Les mélanges utilisés présentent la même taille de cellule de détonation (λ) de l’ordre du diamètre du tube. Nous montrons que le paramètre contrôlant LTDD est λ, celui contrôlant tTDD est la vitesse fondamentale de flamme. Nous avons cherché à

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Prunier, Hélène. "Synthèse et étude des propriétés structurales thermodynamiques et catalytiques de nanoparticules bimétalliques Au-Cu par microscopie électronique en transmission corrigée d'abérrations." Thesis, Sorbonne Paris Cité, 2017. http://www.theses.fr/2017USPCC122/document.

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L’émergence de nouveaux matériaux structurés à l’échelle nanométrique, aux propriétés contrôlées, a ouvert de nouvelles perspectives vis-à-vis des matériaux qui nous entourent. C’est notamment le cas des métaux et de leurs alliages et il est crucial d’établir le lien entre leurs propriétés structurales et leurs propriétés chimique et physique pour en permettre une utilisation optimale. Cette thèse s’inscrit dans ce contexte et porte sur la synthèse et la caractérisation en microscopie électronique en transmission de nanoparticules d’alliage bimétallique Au-Cu. En s’appuyant sur le diagramme de

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Lin, Guan-Hua, and 林冠華. "Classical Trajectory Monte Carlo Method Study of Hydrogen Dynamics and Low Energy Structure under Intense Laser Pulse." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/x4zhwj.

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碩士<br>國立交通大學<br>物理研究所<br>105<br>In this thesis,we use Classcial Trajectory Monte Carlo Method to study the hydrogen dynamics , we divided the discussion into two parts, First ,the high order harmonic generation of the hydrogen atom ; second, the low energy structure peak.

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戴志憲. "Silicon to hydrogen bonding configurations and the multilayers investigate by pulse modulation plasma deposited hydrogenated amorphous silicon thin film." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/91153895019329028458.

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碩士<br>國立中興大學<br>電機工程學系<br>92<br>This thesis uses pulse modulation plasma technology to control the RF-on time of the pulse generator and form the different films on the different hydrogen contents and different Si-H bonding configurations. The a-Si:H films are deposited under the process parameters mentioned after. The RF-on times are set from 30ms to 5ms, the RF-off time is fixed at 30ms. The substrate temperatures are at 100℃, 150℃, 200℃. The ratio of SiH4 to H2 is 1/4, deposition pressure is 0.75 Torr and RF power is 20W. After the measurements of FTIR spectrometer for the a-Si:H films on t

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Guliyev, Asif. "Influence of voltage oscillation pulse-off time in a doms on the properties of hard hydrogen-free DLC coatings for the automotive industry." Master's thesis, 2019. http://hdl.handle.net/10316/93547.

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Dissertação de Mestrado Conjunto Europeu em Tribologia de Superficies e Interfaces apresentada à Faculdade de Ciências e Tecnologia<br>Recent developments such as turbocharging and downsizing in the automotive industry to enhance engine efficiency and reduce emissions are giving rise to the higher operation temperatures and loading densities in the internal combustion engines. Increased temperature stability (up to 500 °C) will be required for coatings of future’s engines compared to ones of present day. Hard tetrahedral DLC coatings (ta-C coatings) are very attractive to be used for automotiv

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Raignault, Adeline. "Étude de l’impact de la pression pulsée sur la réactivité cérébrovasculaire." Thèse, 2015. http://hdl.handle.net/1866/13493.

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In vivo, la pression artérielle au niveau des artères cérébrales est pulsée, alors que ex vivo, l’étude de la fonction cérébrovasculaire est majoritairement mesurée en pression statique. L’impact de la pression pulsée sur la régulation du tonus myogénique et sur la fonction endothéliale cérébrale est inconnu. Nous avons posé l’hypothèse selon laquelle en présence d'une pression pulsée physiologique, la dilatation dépendante de l’endothélium induite par le flux et le tonus myogénique seraient optimisés. L’objectif de notre étude est d’étudier ex vivo l’impact de la pression pulsée sur le

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Vanne, Yulian V. [Verfasser]. "Ionization of molecular hydrogen in ultrashort intense laser pulses / von Yulian V. Vanne." 2010. http://d-nb.info/1004811411/34.

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Lo, Shih-Chieh, and 羅士傑. "Growth of hematite nanostructure film for photoelectrochemial hydrogen production by pulsed laser deposition." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/bqj953.

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碩士<br>國立中央大學<br>能源工程研究所<br>103<br>Pulsed laser deposition (PLD) was used to prepare α-Fe2O3 nanorod array thin film on FTO glass, followed by annealing to improve crystal structure. Effects of PLD parameters and annealing parameters on the physical properties and photoelectrochemical properties of α-Fe2O3 film are also investigated. By comparing crystal structures using XRD analysis for different PLD and annealing parameters, we found PLD fluence of 100 J/cm2 resulted in crystals with [110] preference. Using SEM to observe the surface and cross-sectional morphology of α-Fe2O3 nanorod, we found

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Haverkamp, Jason Dirk. "Plasma physics in pulsed laser deposition of hydrogen-free diamond-like carbon films and nanocomposites." 2004. http://www.lib.ncsu.edu/theses/available/etd-06032004-110030/unrestricted/etd.pdf.

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Kuo, Chin-Ray, and 郭晉睿. "Fabrication of a-Si:H solar cells by hydrogen dilution method and pulsed-wave modulation plasma." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/99583739822890663829.

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碩士<br>國立中興大學<br>電機工程學系所<br>103<br>In this thesis, intrinsic hydrogenated amorphous silicon (a-Si:H) thin films i-layers and p-i-n solar cells were fabricated by 13.56 MHz plasma-enhanced chemical vapor deposition (PECVD) with pulse-wave modulation plasma and hydrogen dilution (R = H2/SiH4) methods. The optical properties of dielectric constants (real part: 1 and imaginary part: 2), refractive index (n), extinction coefficient (k), absorption coefficient () and optical energy gap (Eg) of the a-Si:H i layers were measured by spectroscopic ellipsometry (SE). The dark current-voltage (I-V), pho

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Gendron, Pierre-Olivier. "Diffusion dans un hydrogel : applications aux biocapteurs et optimisation de la technique de spectroscopie par corrélation de fluorescence (FCS)." Thèse, 2008. http://hdl.handle.net/1866/7827.

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LIN, YI-ZHI, and 林一之. "Studies on the brightness improvement of deinked, chemical and mechanical pulpe by hydrogen peroxide and sodium hydrosulfite or thiourea dioxide." Thesis, 1991. http://ndltd.ncl.edu.tw/handle/01332733324391141391.

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Wang, Yu Juan. "Study of the diffusion in polymer solutions and hydrogels by NMR spectroscopy and NMR imaging." Thèse, 2010. http://hdl.handle.net/1866/4912.

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Afin d'étudier la diffusion et la libération de molécules de tailles inférieures dans un gel polymère, les coefficients d'auto-diffusion d'une série de polymères en étoile avec un noyau d'acide cholique et quatre branches de poly(éthylène glycol) (PEG) ont été déterminés par spectroscopie RMN à gradient de champ pulsé dans des solutions aqueuses et des gels de poly(alcool vinylique). Les coefficients de diffusion obtenus ont été comparés avec ceux des PEGs linéaires et dendritiques pour étudier l'effet de l'architecture des polymères. Les polymères en étoile amphiphiles ont des profils de diff

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Luo, Yu-Siang, and 羅渝翔. "Investigation of the Electrochromic Properties of WO3 Thin Film Prepared by Containing Hydrogens by DC and Pulsed DC Sputtering Depositions." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/46834604955187338967.

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碩士<br>國立雲林科技大學<br>電子與光電工程研究所碩士班<br>101<br>The rapid development of electrochromic materials has draw much attention to the evaluation of the performance of its devices. To understand the dynamic performance is necessary for the sake of making a reliable electrochromic device in commercial purpose, which in term mostly is all-solid-state electrochromic devices. The key to the success of these products reflects strongly on various electrochromic performance of such a device. These include response time, memory effect, transmittance, optical density change and color-bleach cyclic lifetime. In thi

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Elghobashi, Nadia [Verfasser]. "Theory of using few cycle IR and UV laser pulses to control the orientation and selective dissociation of hydrogen bonded anions / vorgelegt von Nadia Elghobashi." 2005. http://d-nb.info/978587529/34.

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Devendra, Mani *. "Microwave Spectroscopic and Atoms in Molecules Theoretical Investigations on Weakly Bound Complexes : From Hydrogen Bond to 'Carbon Bond'." Thesis, 2013. http://etd.iisc.ernet.in/2005/3465.

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Weak intermolecular interactions have very strong impact on the structures and properties of life giving molecules like H2O, DNA, RNA etc. These interactions are responsible for many biological phenomena. The directional preference of some of these interactions is used for designing different synthetic approaches in the supramolecular chemistry. The work reported in this Thesis comprises of investigations of weak intermolecular interactions in gas phase using home-built Pulsed Nozzle Fourier Transform Microwave (PN-FTMW) spectrometer as an experimental tool and ab-initio and Atoms in Molecules

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Thérien-Aubin, Héloïse. "Étude de la diffusion dans les hydrogels polymères par spectroscopie et imagerie RMN." Thèse, 2007. http://hdl.handle.net/1866/6555.

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Baille, Wilms Emmanuel. "Étude de la diffusion dans les solutions et les hydrogels polymères par spectroscopie RMN et par imagerie RMN." Thèse, 2004. http://hdl.handle.net/1866/16741.

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Gagnon, Marc-André. "Étude des propriétés de transport dans les hydrogels de curdlan." Thèse, 2009. http://hdl.handle.net/1866/3906.

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Les hydrogels de polysaccharide sont des biomatériaux utilisés comme matrices à libération contrôlée de médicaments et comme structures modèles pour l’étude de nombreux systèmes biologiques dont les biofilms bactériens et les mucus. Dans tous les cas, le transport de médicaments ou de nutriments à l’intérieur d’une matrice d’hydrogel joue un rôle de premier plan. Ainsi, l’étude des propriétés de transport dans les hydrogels s’avère un enjeu très important au niveau de plusieurs applications. Dans cet ouvrage, le curdlan, un polysaccharide neutre d’origine bactérienne et formé d’unités répéti

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