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Tesi sul tema "One-Dimensional gas"

Autore: Grafiati

Pubblicato: 12 ottobre 2024

Ultima modifica: 31 luglio 2025

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1

Tas, Murat. "Dielectric Formulation Of The One Dimensional Electron Gas." Phd thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12604981/index.pdf.

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The charge and spin density correlations in a one dimensional electron gas (1DEG) confined in a semiconductor quantum wire structure at zero temperature are studied. The dielectric formulation of the many--body problem is employed and the longitudinal dielectric function, local-field correction, static structure factor, pair correlation function, ground state energy, compressibility, spin-dependent effective interaction potentials, paramagnon dispersion and static spin response function of the 1DEG are computed within the self-consistent field approximations of Singwi et al., known as the STL

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2

Rodriguez, Carlos G. "One-Dimensional, Finite-Rate Model for Gas-Turbine Combustors." Diss., Virginia Tech, 1997. http://hdl.handle.net/10919/30672.

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An unsteady, finite-rate, one-dimensional model has been developed for the analysis for gas-turbine combustors. The basis of the model is the one-dimensional, integral form of the conservation equations for multi-species, non-equilibrium, reacting mixtures. Special procedures were devised for the flow-division of the inlet flow into primary- and annular-flows, for both straight- and reverse-flow combustors. This allows the model to handle complete combustor configurations, which at present are beyond the reach of more sophisticated CFD tools. The model was validated with a steady-state analyti

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3

Caley, Thomas. "Numerical Modeling of Gas Turbine Combustor Utilizing One-Dimensional Acoustics." University of Cincinnati / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1491562189178949.

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4

Gudyma, Andrii. "Non-equilibrium dynamics of a trapped one-dimensional Bose gas." Thesis, Université Paris-Saclay (ComUE), 2015. http://www.theses.fr/2015SACLS064/document.

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Une étude des modes d'oscillations d'une gaz de Bose unidimensionnel dans la piège est présentée. Les oscillations sont initiées par une changement instantanée de la fréquence de piégeage. Dans la thèse il est considéré d'un gaz de Bose quantique 1D dans un piège parabolique à la température nulle, et il est expliqué, analytiquement et numériquement, comment la fréquence d'oscillation dépend du nombre de particules, leur interaction répulsive, et les paramètres de piège. Nous sommes concentres sur la description spectrale, en utilisant les règles de somme. La fréquence d'oscillation est identi

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5

Latt, Kyaw Zin. "Interactions of Two Dimensional Surface State Electron Gas with Zero, One and Two Dimensional Structures." Ohio University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1383242271.

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6

Parthangal, Prahalad Madhavan. "Synthesis and integration of one-dimensional nanostructures for chemical gas sensing applications." College Park, Md. : University of Maryland, 2007. http://hdl.handle.net/1903/6881.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2007.<br>Thesis research directed by: Mechanical Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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7

Tang, Zifan. "One-dimensional mechanistic modelling of gas-liquid two phase flow in pipes." Thesis, Imperial College London, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.284815.

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8

Mukherjee, Tamal. "One Dimensional Air System Modeling of Advanced Technology Compressed Natural Gas Engines." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1397776678.

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9

De, Rosi Giulia. "Collective oscillations of a trapped atomic gas in low dimensions and thermodynamics of one-dimensional Bose gas." Doctoral thesis, Università degli studi di Trento, 2017. https://hdl.handle.net/11572/368019.

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Ultracold atoms are exceptional tools to explore the physics of quantum matter. In fact, the high degree of tunability of ultracold Bose and Fermi gases makes them ideal systems for quantum simulation and for investigating macroscopic manifestations of quantum effects, such as superfluidity. In ultracold gas research, a central role is played by collective oscillations. They can be used to study different dynamical regimes, such as superfluid, collisional, or collisionless limits or to test the equation of state of the system. In this thesis, we present a unified description of collective osci

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10

De, Rosi Giulia. "Collective oscillations of a trapped atomic gas in low dimensions and thermodynamics of one-dimensional Bose gas." Doctoral thesis, University of Trento, 2017. http://eprints-phd.biblio.unitn.it/2066/1/PhD_DeRosi.pdf.

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Ultracold atoms are exceptional tools to explore the physics of quantum matter. In fact, the high degree of tunability of ultracold Bose and Fermi gases makes them ideal systems for quantum simulation and for investigating macroscopic manifestations of quantum effects, such as superfluidity. In ultracold gas research, a central role is played by collective oscillations. They can be used to study different dynamical regimes, such as superfluid, collisional, or collisionless limits or to test the equation of state of the system. In this thesis, we present a unified description of collective osc

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11

Lilly, Jonathan Patrick. "One-dimensional computer modeling of electrical conductivity through methane and synthesis gas flames." Morgantown, W. Va. : [West Virginia University Libraries], 2006. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=4898.

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Thesis (M.S.)--West Virginia University, 2006.<br>Title from document title page. Document formatted into pages; contains xvi, 291 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 289-291).

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12

Ha, Meesoon. "Scaling and phase transitions in one-dimensional nonequilibrium driven systems /." Thesis, Connect to this title online; UW restricted, 2003. http://hdl.handle.net/1773/9758.

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13

Cheng, Chi-Yuan. "Gas adsorption, diffusion, and exchange in one-dimensional nanotube systems by hyperpolarized Xe-129 NMR." [Gainesville, Fla.] : University of Florida, 2008. http://purl.fcla.edu/fcla/etd/UFE0022786.

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14

Kirkpatrick, Samuel John. "An evaluation of one-dimensional simulation techniques for predicting unsteady gas flow in engine ducting." Thesis, Queen's University Belfast, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.482057.

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15

Baradaran, Amir R. "Development and Implementation of a Preconditioner for a Five-Moment One-Dimensional Moment Closure." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/32225.

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This study is concerned with the development and implementation of a preconditioner for a set of hyperbolic partial differential equations resulting from a new 5-moment closure for the prediction of gas flows both in and out of local equilibrium. This new 5-moment closure offers a robust and efficient system of first-order hyperbolic partial differential equations that has proven to provide an accurate treatment of one-dimensional gases, both in and for significant departures from local thermodynamic equilibrium. However, numerical computations using this model have proven to be difficult as a

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16

Abbaspour, Mohammad. "Simulation and optimization of non-isothermal, one-dimensional single/two-phase flow in natural gas pipeline /." Search for this dissertation online, 2005. http://wwwlib.umi.com/cr/ksu/main.

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17

McMackin, Martin. "A one-dimensional model of the unsteady gas dynamics and surface relations within an automotive catalyst." Thesis, Queen's University Belfast, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.486531.

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The motivation behind this investigation was the need to further the understanding of the gas dynamic behaviour of automotive catalysts under pulsating flow conditions, with a view to improving the ease and accuracy of simulating engine-catalyst systems. A VIRTUAL 4-STROKE model representative of a current-generation engine-catalyst system was developed and simulated over a range of operating conditions. The capability . of this model to simulate a current-generation engine-catalyst system model was evaluated against measured results obtained during dynamometer experiments. A separate simulati

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18

Gabrielyan, Nare. "Low temperature fabrication of one-dimensional nanostructures and their potential application in gas sensors and biosensors." Thesis, De Montfort University, 2013. http://hdl.handle.net/2086/9607.

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Nanomaterials are the heart of nanoscience and nanotechnology. Research into nanostructures has been vastly expanding worldwide and their application spreading into numerous branches of science and technology. The incorporation of these materials in commercial products is revolutionising the current technological market. Nanomaterials have gained such enormous universal attention due to their unusual properties, arising from their size in comparison to their bulk counterparts. These nanosized structures have found applications in major devices currently under development including fuel cells,

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19

Gallucci, Donatello. "Ab initio modelling of quasi-one-dimensional Bose gas experiments via the stochastic Gross-Pitaevskii equation." Thesis, University of Newcastle upon Tyne, 2013. http://hdl.handle.net/10443/1858.

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In this thesis we use the stochastic Gross-Pitaevskii equation (SGPE), a finite temperature model for weakly interacting ultracold Bose gases which fully incorporates density and phase fluctuations, to demonstrate ab initio quantitative agreementwith a number of quasi-one-dimensional experiments. To achieve this, we propose and numerically solve a quasi-one-dimensional form of the SGPE, supported by a self-consistent treatment of radially-excited thermal modes. The quasi-one-dimensional stochastic Gross-Pitaevskii equation provides an accurate finite temperature description of the dynamical eq

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20

Kratschun, Filipp, Jens Köhne, Peter Kloft, Heiko Baum, and Katharina Schmitz. "One dimensional unsteady model of a hydropneumatic piston accumulator based on finite volume method." Technische Universität Dresden, 2020. https://tud.qucosa.de/id/qucosa%3A71089.

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Hydraulic piston accumulators play a major role especially within the field of stationary hydraulics. The calculation of the amount of hydraulic energy which can be stored in such an accumulator is crucial when it comes to a precise system design. The knowledge of the temperature and pressure within the accumulator is required in order to calculate the amount of energy to be stored. The state of the art solution to estimate the state of change of such an accumulator is the implementation of a costly measurement system within the accumulator which tracks the position of the piston. The goal of

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21

Priščák, Juraj. "Charakterizace senzitivních nanomateriálů pro MOX senzory plynů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442521.

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This thesis deals with one-dimensional (1D) and two-dimensional nanomaterials (2D) in terms of their utilization for new types of gas sensors. Thesis focuses on study of sensing elements for gas sensors based on semiconductor metal oxide materials (MOX) and their manufacturing technology. The objective of the thesis is the design and implementation of a sensing elements formed by selected nanomaterials based on the structure of interdigital electrodes. The result of the practical part of the thesis is the characterization and comparison of materials in terms of their detection parameters in th

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22

Isaksson, Frida. "Pressure loss characterization for cooling and secondary air system components in gas turbines." Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-64528.

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There is a constant struggle to increase the efficiency in gas turbines, where one method is to have a higher inlet temperature to the turbine. Often, this results in temperatures higher than the critical temperature of the materials, which makes cooling of the components an important part of the turbine. The cooling air is tapped from the compressor, and has hence required work while being compressed, but since it is removed from the thermodynamic cycle it will not provide any work in the turbine stages. Therefore, it is important to understand the losses in the cooling system to be able to u

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23

Young, Alexander L., and Alexander L. Young. "Three Essays on Complex Systems: Self-Sorting in a One-Dimensional Gas, Collective Motion in a Two-Dimensional Ensemble of Disks, and Environment-Driven Seasonality of Mosquito Abundance." Diss., The University of Arizona, 2017. http://hdl.handle.net/10150/624567.

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Complex systems offer broad, unique research challenges due to their inability to be understood through a classic reductionist perspective, as they exhibit emergent phenomena that arise through the interactions of their components. In this thesis, we briefly review some characteristics of complex systems and the interplay of mathematical and computational methods to study them. We then discuss these approaches, how they are implemented, and how they support one another in three settings. First, we present a study that connects weather data to seasonal population-abundance of mosquitoes, using

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24

Händestam, Jacob, and Eric Jacobson. "Investigation and Validation of Cooling Loss Models for Axial Gas Turbines." Thesis, KTH, Energiteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-211696.

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Detta arbete behandlar undersökningen och valideringen av kylförlustmodellen i det nyligen framtagna programmet för endimensionell turbindesign, Mean Line Tool (MLT), skapat av Siemens Industrial Turbomachinery AB (SIT). Huvudsyftet är att undersöka med vilken noggrannhet MLT kan prediktera de extra aerodynamiska förluster som uppstår vid injektion av kylluft i en turbinpassage. För att validera kylförlustmodellen i MLT, har tidigare resultat från en testrigg på KTH används, där de extra förlusterna på grund av kylinjektion har mätts för ett flertal kylpositioner på en turbinledskena. Lokala f

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25

Almstetter, Martin F. [Verfasser], and Frank-Michael [Akademischer Betreuer] Matysik. "Tools and applications for one- and two-dimensional gas chromatography – time-of-flight mass spectrometry-based metabolomics / Martin F. Almstetter. Betreuer: Frank-Michael Matysik." Regensburg : Universitätsbibliothek Regensburg, 2012. http://d-nb.info/1023312379/34.

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26

Pentland, Ian Alisdair. "A phonon emission study of quasi-1D electron gases." Thesis, University of Nottingham, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325695.

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27

Håkansson, David. "Aerothermal and Kinetic Modelling of a Gas Turbine Dry Low Emission Combustion System." Thesis, KTH, Strömningsmekanik och Teknisk Akustik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-298477.

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Growing environmental concerns are causing a large transformation within the energy industry. Within the gas turbine industry, there is a large drive to develop improved modern dry-low emission combustion systems. The aim is to enable gas turbines to run on green fuels like hydrogen, while still keeping emission as NOx down. To design these systems, a thorough understanding of the aerothermal and kinetic processes within the combustion system of a gas turbine is essential. The goal of the thesis was to develop a one-dimensional general network model of the combustion system of Siemens Energy S

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28

Ballu, Manon. "Production d’un gaz de Bose unidimensionnel, résonances de Feshbach micro-onde et dynamique hors équilibre." Electronic Thesis or Diss., Paris 13, 2024. http://www.theses.fr/2024PA131033.

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Dans cette thèse, nous présentons une expérience produisant des condensats de Bose-Einstein de sodium. L'utilisation d'une puce à atomes, qui donne accès à des pièges magnétiques très allongés, permet de produire des gaz quantiques unidimensionnels dans le régime de quasi-condensat. Nous avons optimisé le refroidissement par évaporation et le transfert des atomes vers le piège magnétique de la puce à atomes. Nous nous sommes ensuite intéressés aux résonances de Feshbach micro-onde, dans le but de contrôler les interactions entre atomes, ce qui nécessite de fortes puissances micro-onde. Pour ce

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29

BAKHTIARI, MOHAMMAD REZA. "Quantum gases in quasi-one dimensional arrays." Doctoral thesis, Scuola Normale Superiore, 2007. http://hdl.handle.net/11384/85849.

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30

Perez, Florent. "Plasmons dans un potentiel unidimensionnelEtude par spectroscopie Raman de fils quantiques gravés." Phd thesis, Université Pierre et Marie Curie - Paris VI, 1998. http://tel.archives-ouvertes.fr/tel-00285443.

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Nous avons étudiés des fils quantiques dopés de semi-conducteurs gravés par spectroscopie de diffusion Raman. Nous avons observés les excitations du gaz d'électrons. Celles-ci présentent des règles de sélection différentes de celles établies pour les systèmes bi-dimensionnels. Nous avons montré théoriquement qu'elles proviennent de la modification de la structure du champ électromagnétique local provoquée par la géométrie particulière des fils gravés. Pour cela nous avons dû calculer le champ local et l'introduire dans la section efficace de diffusion Raman pour en déduire les règles de sélect

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31

Klochan, Oleh V. Physics Faculty of Science UNSW. "Ballistic transport in one-dimensional p-type GaAs devices." Awarded by:University of New South Wales, 2007. http://handle.unsw.edu.au/1959.4/35186.

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In this thesis we study GaAs one dimensional hole systems with strong spin-orbit interaction effects. The primary focus is the Zeeman splitting of 1D subbands in the two orthogonal in-plane magnetic field directions. We study two types of 1D hole systems based on different (311)A grown heterostructures: a modulation doped GaAs/AlGaAs square quantum well and an undoped induced GaAs/AlGaAs triangular quantum well. The results from the modulation doped 1D wire show enhanced anisotropy of the effective Lande g-factor for the two in-plane field directions (parallel and perpendicular to the wire), c

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32

Gao, Jian. "Fluorescence Enhancement using One-dimensional Photonic Band Gap Multilayer Structure." University of Dayton / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1343753064.

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33

Massaro, Loredana Maria. "Multimodal one-dimensional photonic crystal cavities." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASP035.

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La recherche en photonique intégrée concentre ses efforts sur le développement de dispositifs miniaturisés et efficaces pour des applications dans les domaines de l'information quantique, de la métrologie et de la médecine. Dans ce contexte,les cavités à cristaux photoniques occupent une position importante dans l'intégration de structures photoniques ayant taille réduite et propriétés spectrales adaptables. Ces dernières années, une attention particulière a été accordée aux cavités à cristaux photoniques constituées de matériaux semiconducteurs III-V,car leurs propriétés non linéaires sont un

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34

Patel, Nalin Kumar. "Observations of confinement in quasi-one- and -zero-dimensional GaAs/AlGaAs structures." Thesis, University of Cambridge, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386352.

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35

Khodami, Maryam. "Dispersion Characteristics of One-dimensional Photonic Band Gap Structures Composed of Metallic Inclusions." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/23179.

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An innovative approach for characterization of one dimensional Photonic Band Gap structures comprised of metallic inclusions (i.e. subwavelength dipole elements or resonant ring elements) is presented. Through an efficient S- to T-parameters conversion technique, a detailed analysis has been performed to investigate the variation of the dispersion characteristics of 1-D PBG structures as a function of the cell element configuration. Also, for the first time, the angular sensitivity of the structure has been studied in order to obtain the projected band diagrams for both TE and TM polarizations

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36

Barnwell, Ellis. "One and two-dimensional propagation of waves in periodic heterogeneous media : transient effects and band gap tuning." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/one-and-twodimensional-propagation-of-waves-in-periodic-heterogeneous-media-transient-effects-and-band-gap-tuning(9a5bd9d7-09da-46a8-ae57-b63d9d815f10).html.

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In this thesis, the propagation of transient waves in heterogeneous media and the tuning of periodic elastic materials are studied. The behaviour of time harmonic waves in complex media is a well understood phenomenon. The primary aim of this text is to gain a deeper understanding into the propagation of transient waves in periodic media. The secondary aim is to explore the time harmonic behaviour of two dimensional pre-stressed elastic media and investigate the plausibility of band gap tuning. We begin this text by investigating the reflection of pulses from a semi-infinite set of point masse

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37

Tuenter, Hans J. H. "Worst-case bounds for bin-packing heuristics with applications to the duality gap of the one-dimensional cutting stock problem." Thesis, University of Birmingham, 1997. http://etheses.bham.ac.uk//id/eprint/266/.

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The thesis considers the one-dimensional cutting stock problem, the bin-packing problem, and their relationship. The duality gap of the former is investigated and a characterisation of a class of cutting stock problems with the next round-up property is given. It is shown that worst-case bounds for bin-packing heuristics can be and are best expressed in terms of the linear programming relaxation of the corresponding cutting stock problem. The concept of recurrency is introduced for a bin-packing heuristic, which allows a more natural derivation of a measure for the worst-case behaviour. The id

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38

Tanner, Matthew Wilder. "Multidimensional Modeling of Solid Propellant Burning Rates and Aluminum Agglomeration and One-Dimensional Modeling of RDX/GAP and AP/HTPB." Diss., CLICK HERE for online access, 2008. http://contentdm.lib.byu.edu/ETD/image/etd2706.pdf.

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39

BHANDARI, CHURNA B. "FIRST-PRINCIPLES STUDY OF ELECTRONIC AND VIBRATIONAL PROPERTIES OF BULK AND MONOLAYER V2O5." Case Western Reserve University School of Graduate Studies / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=case1459296089.

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40

Shulenburger, Luke Nathan. "Correlation in the one dimensional electron gas /." 2008. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3337923.

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Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2008.<br>Source: Dissertation Abstracts International, Volume: 69-11, Section: B, page: 6872. Adviser: Richard M. Martin. Includes bibliographical references (leaves 104-109) Available on microfilm from Pro Quest Information and Learning.

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Cheng, Hsien-Lung, and 鄭憲隆. "One-dimensional silicon nanostructure for hydrogen gas sensor." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/82604143772786903888.

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碩士<br>國立臺灣科技大學<br>電子工程系<br>100<br>There are many technologies to fabricate one-dimensional silicon nanostructure. The silicon nanostructures were used for many applications. For example, the silicon nanostructures have high reflection property in solar cell. In the electron field emission, the silicon nanostructures possess the higher aspect ratio and numerous emission sites. For sensor researching, it has higher surface area to volume ratio that can improve the sensitivity. We fabricated the one dimension silicon nanostructure for hydrogen sensor. In this research, we synthesized different m

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42

Yeh, Li-Ko, and 葉禮閣. "One-Dimensional and Two-Dimensional Materials for Solar Cells and Gas Sensors." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/ab8rfy.

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博士<br>國立臺灣大學<br>電子工程學研究所<br>105<br>Particular physical and chemical properties of nanomaterials have promised and exhibited great applications in manufacturing various nanodevices such as electron field emitters, sensors, photovoltaics and other electronic components. In this thesis, I will experimentally explore three topics which realize the improvement of solar cells and gas sensors. The first topic is that ZnO nanostructure as an anti-reflectance coating for commercial GaInP/GaAs/Ge triple-junction solar cells. Covered by the unique tapered nanoneedles, the efficiency of the tandem solar c

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43

Wenger, Trevor. "Experiments on a one-dimensional Bose gas Thomas Fermi to Tonks-Girardeau /." 2007. http://www.etda.libraries.psu.edu/theses/approved/WorldWideIndex/ETD-1758/index.html.

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Chang, Tsu-Ming, and 張祖明. "One-Dimensional Bose Gas with Delta Function Interactions in an Infinite Well." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/66068703691602136222.

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碩士<br>國立清華大學<br>物理研究所<br>84<br>One-dimensional bosons with a delta function interaction in an infinite well is analyzed. Its wave function, energy spectrum, and other thermodynamic properties are obtained. First, for comparison, we deal with the problem that iti- nerant particles interact with a point defect via a delta function interaction in an infinite well in chapter 2, and we find perturbation results to be a good approximation. Secondly, we suppose that the bose gas interact with a de

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Chen, Hsin-Li, and 陳新立. "Electrical measurement of one-dimensional composite nanowires and its application for gas sensor." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/44562460085124743491.

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碩士<br>國立雲林科技大學<br>電子與資訊工程研究所<br>93<br>In the this work, one-dimensional composite materials of the gold nanopartical embedded in an amorphous silicon nanowire was synthesized by microwave plasma enhance chemical vapor deposition (MWPECVD) system on the SiNx thin film with coating a gold film. Growth of the one-dimensional composite nanowires is not easy, because the plasma environment in the chamber with a little variation, the silica nanowires will be synthesized instead of the composite nanowires. We used the silica nanowires of the different conditions to detect nitrogen and oxygen respecti

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Chen, Li-Chun, and 陳立鈞. "The preparation of gas diffusion electrodes using one-dimensional carbon substrate and Pt sols." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/40974120787323380194.

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碩士<br>元智大學<br>化學工程與材料科學學系<br>96<br>In this research, a carbon membrane with well-aligned pore structure is synthesized by template method. This carbon membrane is used together with Pt sols for improving performance of PEMFCs. Epoxy solution is deposited into pore of a commercially available AAO (anodic aluminum oxide) membrane. After carbonization under N2 environment at elevated temperature, the carbon-AAO composite is subjected to a 2-step AAO removal procedure. By controlling the extent of AAO removal in the first step, and the use of a second carbon-filling-and-carbonization procedure, w

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Mehta, Abhijit C. "Zigzag Phase Transition in Quantum Wires and Localization in the Inhomogeneous One-Dimensional Electron Gas." Diss., 2013. http://hdl.handle.net/10161/7191.

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<p>In this work, we study two important themes in the physics of the interacting one-dimensional (1D) electron gas: the transition from one-dimensional to higher dimensional behavior, and the role of inhomogeneity. The interplay between interactions, reduced dimensionality, and inhomogeneity drives a rich variety of phenomena in mesoscopic physics. In 1D, interactions fundamentally alter the nature of the electron gas, and the homogeneous 1D electron gas is described by Luttinger Liquid theory. We use Quantum Monte Carlo methods to study two situations that are beyond Luttinger Liquid theory

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Dong, Yao-Jhong, and 董耀中. "Growth mechanism of CuO one-dimensional nanostructures by thermal oxidation process and their CO gas sensing properties." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/95176930067603502799.

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碩士<br>國立中興大學<br>材料科學與工程學系所<br>98<br>We have successfully synthesized one-dimensional CuO nanowires by thermal oxidation and observed their growth mechanism. The CuO nanowires were adopted to fabricate a simple gas sensor which can be used for detecting low concentration CO. In the atmosphere at temperatures between 300℃ to 600℃, CuO nanowires could be grown. Once the annealing temperature was higher than 700℃or lower than 200℃, no CuO nanowires could be formed. The varieties of synthesis temperature would affect the diameters of CuO nanowires, and the lengths of nanowires would increase with i

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Gouws, Johannes Jacobus. "Combining a one-dimensional empirical and network solver with computational fluid dynamics to investigate possible modifications to a commercial gas turbine combustor." Diss., 2007. http://upetd.up.ac.za/thesis/available/etd-04212008-074344/.

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Ko, Rong-Ming, and 柯榮明. "Study on the Growth Mechanisms of One-Dimensional Tungsten Oxide Nanostructures and Their Applications in Gas Sensors and Field Emitters." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/82952078034745784202.

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博士<br>國立成功大學<br>微電子工程研究所碩博士班<br>97<br>In this thesis, study on the growth mechanisms of the evolution of one-dimensional tungsten oxide (TO) nanostructures from nanowires to nanosheets and their applications in gas sensors and field emitters were proposed and investigated. Nanowires and nanobelts were self-synthesized on sputter-deposited tungsten-based thin film by a simple thermal annealing process in N2 ambient. Techniques of various analysis including FESEM, HRTEM, SAED, XRD and XPS were employed to characterize the growing conditions and properties of nanostructures. In addition, a measur

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