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Dissertations / Theses on the topic 'BowtieXP'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Puzella, Angelo. "Theoretical and Experimental Development of an Array of Droopy Bowties with Integrated Baluns." Digital WPI, 2014. https://digitalcommons.wpi.edu/etd-dissertations/313.

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"Theoretical modeling, design, assembly, and measurement of a novel integrated phased array radiator are presented. The droopy bowtie turnstile radiator with quad line feed meets challenging radar requirements and uses low cost manufacturing and assembly techniques. This thesis develops the complete theoretical model (antenna, balun, feeding network) of a broadband phased array radiator: the droopy bowtie turnstile radiator. A novel quad line balun feed is developed that provides a low loss, high isolation, and coincident phase-center feeding network for the droopy bowtie. The radiator and fee

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2

Byambadorj, Tsenguun. "Optimization of the bowtie gap geometry for a maximum electric field enhancement." Thesis, Marquette University, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10242847.

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<p>Optimization of the geometry of a metallic bowtie gap at radio frequency is presented in this thesis. Since the design and fabrication of a plasmonic device (nanogap) at nanoscale is challenging, the results of this study can be used to estimate the best design parameters for nanogap structure. The geometry of the bowtie gap including gap size, tip width, metal thickness, and tip angle are investigated at macroscale to find the maximum electric field enhancement across the gap. This thesis focuses on the simulation portion of a work that consists of experimental and simulation platfor

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3

Birch, Max (Max Lariviere). "Development of a cavity backed bowtie antenna with dielectric matching for ground penetrating radar." Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52186.

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Thesis (MScEng)--University of Stellenbosch, 2001.<br>ENGLISH ABSTRACT: An antenna for ground level deployed Ground Penetrating Radar applications is presented. The antenna is matched to the ground via a low impedance dielectric matching section improving the radiation pattern and input impedance characteristics. A bowtie antenna was used for the design with the edges rounded to stabilize the resonant frequency. The radiation pattern was focused to the one side of the antenna for ground penetration using a non-absorptive metallic cylindrical air filled cavity. Edge reflections from the

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4

SANTOS, Thaís Lira Tavares dos. "Análise comparativa das propriedades ressonantes de nanopartículas e de nanoantenas bowtie de ouro de diferentes geometrias." Universidade Federal do Pará, 2012. http://repositorio.ufpa.br/jspui/handle/2011/9165.

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Submitted by Hellen Luz (hellencrisluz@gmail.com) on 2017-10-05T17:23:22Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Tese_AnaliseComparativaPropriedades.pdf: 4858742 bytes, checksum: 37cfbac1727554800e29086a72f9b909 (MD5)<br>Rejected by Edisangela Bastos (edisangela@ufpa.br), reason: on 2017-10-10T17:05:40Z (GMT)<br>Submitted by Hellen Luz (hellencrisluz@gmail.com) on 2017-10-16T15:42:03Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Tese_AnaliseComparativaPropriedades.pdf: 4858742 bytes, checksum:

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5

Atie, Elie. "Modeling of high electromagnetic field confinement metamaterials for both linear and non-linear applications." Thesis, Besançon, 2016. http://www.theses.fr/2016BESA2044/document.

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Notre recherche porte sur la réponse optique des nanostructures et nous sommes certainement intéressés à la modélisation de ces structures afin d'améliorer le confinement de la lumière. Ce confinement est un des paramètres qui conduisent à l'exaltation des effets optique linéaires et non linéaires, simultanément. Notre travail est divisé en deux sections, qui présentent deux effets optiques diffèrents basées sur le confinement des champs à l’intérieur du structure. Dans la première section, la réponse optique d’une nano-antenne à ouverture en forme de nœud papillon (BNA : Bowtie nano-aperture)

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6

Liu, Huanhuan. "A novel optical bio-chemical sensor based on hybrid nanostructures of Bowtie nanoantennas and Fabry-Perot Interferometer." Phd thesis, Ecole Centrale de Lyon, 2013. http://tel.archives-ouvertes.fr/tel-01064196.

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Nowadays, the increasing concern for environmental analysis and food quality control, as well as medical needs such as fast diagnosis in case of emergency events, leads to a growing need for new generations of chemical and biological sensors. These devices should have high sensitivity and reliability, perform specific detection of molecules and enable multiple parallel sensing, while being cheap, portable, fast and easy to use. Thus, a general trend tends towards bio-chemical sensors which are on-chip integrated, label-free, and compatible with standard micro-technologies. Photonic dielectric

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7

Alibakhshikenari, M., B. S. Virdee, C. H. See, et al. "Dual-Polarized Highly Folded Bowtie Antenna with Slotted Self-Grounded Structure for Sub-6 GHz 5G Applications." IEEE, 2021. http://hdl.handle.net/10454/18606.

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Yes<br>In this paper, a novel dual-polarized highly-folded self-grounded Bowtie antenna that is excited through I-shaped slots is proposed for applications in sub-6GHz 5G multiple-input-multiple-output (MIMO) antenna systems. The antenna consists of two pairs of folded radiation petals whose base is embedded in a double layer of FR-4 substrate with a common ground-plane which is sandwiched between the two substrate layers. The ground-plane is defected with two I-shaped slots located under the radiation elements. Each pair of radiation elements are excited through a microstrip line on the top l

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8

Sumanam, Satya Parthiva Sri. "A Conductor Backed, Coplanar Waveguide Fed, Linear Array Comprised of Bowtie Antennas for a Varactor Tuned Radiation Pattern." University of Dayton / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1470346770.

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9

Pan, Kuan-Chang. "Ferroelectric Barium Strontium Titanate Thin-Film Varactor Based Reconfigurable Antenna." University of Dayton / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1323453777.

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10

Pan, Kuan-Chang. "Vanadium Dioxide Based Radio Frequency Tunable Devices." University of Dayton / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=dayton154341840843132.

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11

Suchý, Ivo. "Možnosti managementu rizik zkušebních laboratoří v kontextu revidovaných norem systémů managementu." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-382730.

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The diploma thesis deals with analysis and assessment of risks in testing laboratories, where the work with risks is an unrecognized area. A part of the thesis defines risks according to standard revision 17025:2017. Subsequently, these risks are processed by selected methods, which are used for qualitative and quantitative evaluation. Risks determination in the thesis is based on methods Risk Matrix, Failure Modes & Effects Analysis (FMEA) and Bow Tie Analysis. Introducing possibilities and patterns of described methods to testing laboratories is the main aim of the thesis, this could be a wa

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12

Barnier, Thibaud de. "Evaluation quantitative des risques industriels avec incertitudes par la méthode du noeud papillon. Application sur un cas d'étude concret." Electronic Thesis or Diss., Université de Toulouse (2023-....), 2024. http://www.theses.fr/2024TLSEP037.

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L'analyse quantitative des risques est devenue un outil d’aide à la prise de décisions pour toutes les activités industrielles exposées à des risques d'accidents majeurs. En France, depuis l'accident d'AZF, la réglementation a évolué et exige désormais des études de sécurité quantitatives pour évaluer et réduire les risques technologiques. Cette analyse a encore une forte marge d’amélioration, dont celle d’intégrer les incertitudes inhérentes aux probabilités d’occurrence d’événements et scénarios susceptibles de se produire. L’évaluation des risques industriels par la méthode du nœud papillon

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13

Sáček, Petr. "Analýza a řízení rizik technologických etap výstavby zděných konstrukcí." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-240997.

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This thesis deals with the analysis and evaluation of quality, environmental, and security risks, hazards and application of appropriate methodology to a particular construction project. For an application is selected the key construction technology - walling. Diploma thesis establishes a framework for risk management on the basis of established integrated management system (IMS) defines the objectives and mechanisms in controlling adherence to standards, evaluation of business risks, defining risk management strategies, the draft risk management procedures, monitoring their functioning, asses

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14

Xie, Zhihua. "Fiber-integrated nano-optical antennas and axicons as ultra-compact all-fiber platforms for luminescence detection and imaging down to single nano-emitters." Thesis, Besançon, 2016. http://www.theses.fr/2016BESA2046/document.

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Ma thèse concerne le développent de systèmes ultra compactes auto-alignés et à faible coût intégréssur fibre optique monomode pour la collection fibrée de la luminescence locale. Dans un premiertemps, un axicon fibré auto-aligné (AXIGRIN) est proposé permettant de fournir la première imagerierésolue ultra-compacte fibrée de quantum dots PbS infrarouges. Ensuite, la première nano-imagerie(système entièrement fibrée) de quantum dots PbS uniques est réalisée à l’aide d’une nano-antenneà ouverture bowtie intégrée sur pointe fibrée. Enfin, le concept d’≪antenne cornet≫ nano-optiqueest proposé pour

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15

Hrazdilová, Ivana. "Analýza dat ze sekvenování příští generace ke studiu aktivity transposonů v nádorových buňkách." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-220061.

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Theoretical part of this diploma thesis gives a brief characteristic of human mobile elements (transposons), which represents nearly 50% of human genome. It provides basic transposon clasification and describes types of transposons present in hunam genome, as well as mobilization, activation and regulation mechanisms. The work also deals with the domestication of transposons, describes the ways in which TE contribute to DNA damage and summarizes the diseases caused by mutagenic activity of transposons in the human genome. Conclusion of theoretical part describes next-generation sequencing tech

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16

SAPRA, VAIBHAV. "ASYMMETRIC PLASMONIC NANO-BOWTIES FOR ELECTROMAGNETIC ENHANCEMENT." Thesis, 2019. http://dspace.dtu.ac.in:8080/jspui/handle/repository/16949.

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Plasmonic nanostructures, which are properly engineered, lead to the phenomenon of localized surface plasmon resonance (LSPR), wherein, an enhance electric field near the surface of metal nanoparticles at the plasmon resonance wavelength can be observed. This phenomenon finds applications in many areas such as photo-voltaics, refractive index sensing and others. In this project, plasmonic nano-structures which offer high electromagnetic enhancement through the formation of EM hotspots, and due to the lightning rod effect are analyzed by employing Finite Difference Time Domain (FD

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17

"Finite element analysis of slotline-bowtie junction." 1997. http://library.cuhk.edu.hk/record=b5889131.

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by Chong Man Yuen.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 1997.<br>Includes bibliographical references (leaves 125-128).<br>Dedication<br>Acknowledgements<br>List of Figure<br>List of Table<br>List of Appendix<br>Chapter 1. --- Introduction<br>Chapter 1.1 --- Background<br>Chapter 1.2 --- Ultra-Wide Band Antenna<br>Chapter 1.3 --- Finite Element Method (FEM)<br>Chapter 1.3.1 --- Domain Discretization<br>Chapter 1.3.2 --- Formulation of Variational Method<br>Chapter 2 --- Theory<br>Chapter 2.1 --- Variational principles for electromagnetics<br>Chapter 2.1.1 --- Construction of Fu

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18

Chia-Shang, Zheng. "Coplanar Waveguide Fed Bowtie Slot Antennas for Ultra-Wideband Applications." 2006. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0001-2507200614140000.

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19

Zheng, Chia-Shang, and 鄭佳尚. "Coplanar Waveguide Fed Bowtie Slot Antennas for Ultra-Wideband Applications." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/57507259779855711232.

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碩士<br>國立臺灣大學<br>電信工程學研究所<br>94<br>Ultra-wideband (UWB) technology has experienced a blooming growth in recent years and becomes an attractive candidate for short-range high-speed indoor data communications. In 2002, the U.S. Federal Communications Commission (FCC) authorized the commercial deployment of UWB technology, and officially allocated the spectrum from 3.1 to 10.6 GHz for unlicensed UWB communication applications. To possess ultra-wide bandwidth and lower power, the UWB system transmits and receives extremely short pulses. It is quite a challenge to design an antenna for the UWB syste

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20

Chu, Heng-Yi, and 朱恒沂. "Trapping nano-sized particle by waveguide-coupled gold bowtie structure." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/81691549685562177854.

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碩士<br>國立交通大學<br>顯示科技研究所<br>102<br>We propose a particle manipulation system by using localized surface plasma resonance excited by a coupling waveguide. The system, featured with advantages such as small footprint and easily being integrated in a chip, is composed of gold bowtie and silicon nitride waveguide. The simulation shows highly concentrated and enhanced field in gap of the bowtie where strong optical trapping force will be established and will be able to trap microscopic particles. We find a bowtie with 5 nm gap at the tips can provide 1389 pN/W force for trapping 20 nm polystyrene pa

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21

Tan, Wei, and 譚暐. "Study on plasmonic bowtie notch for nanoparticle trapping and sensing." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/2n45x9.

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22

王派宣. "A broadband radar absorbing material consisting of resistor-loaded bowtie array." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/34007589315686126438.

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碩士<br>國立交通大學<br>電信工程研究所<br>100<br>From the beginning of 20th century, stealth technology has received great attention for its importance on military radar applications and it has been widely employed on military aircrafts and naval vessels recently. Since evaluation of the target’s radar cross-section (RCS), which is a main subject in stealth technology, provides basic information of the target, researchers have been devoted to RCS reduction to diminish the accuracy of hostile radar system. Approaches such as absorbing coating and Salisbury screen have been proposed and they are feasible to re

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23

Liao, Shih-Chieh, and 廖士傑. "Various angles of nano silver bowtie and diabolo for enhancing photocatalytic activity." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/19047590642281257094.

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碩士<br>國立臺灣海洋大學<br>機械與機電工程學系<br>103<br>Photoresist and electron beam lithography technique were used to fabricate the evaporated nano silver bowtie and diabolo structure with various tip angles embedded on the surface of titanium dioxide film. The reinforced localized surface plasmon resonance and electric field can be generated at the metallic Ag/TiO2 interface and air/TiO2 interface for making a high light absorbance of titanium dioxide photocatalytic device. The results in both bowtie and diabolo structure show that not the localized surface plasmon resonance (LSPR) enhances, but also the Ra

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24

Li, Kuan-Yu, and 李冠郁. "Nonlinear Scattering in Single Gold Bowtie Nanoantennae and Investigations of its Mechanism." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/20061234376778009994.

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碩士<br>國立臺灣大學<br>物理學研究所<br>104<br>Nonlinear scattering has been observed in a single gold nanosphere (GNS) under high-intensity laser illumination with wavelength inside the plasmonic resonance band. It has been already applied to novel non-bleaching super-resolution microscopy based on scattering, with STED-like and SAX-like setup. Previous spectral analyses show nonlinear scattering is highly related to localized surface plasmon resonance (LSPR) in the gold nanoparticle. When the applied wavelength is closer to the resonance peak, the nonlinearity becomes observable in lower excitation intens

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"Bowties, Barcodes, and DNA Origami; A Novel Approach for Paired-Chain Immune Receptor Repertoire Analysis." Doctoral diss., 2017. http://hdl.handle.net/2286/R.I.46219.

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abstract: There are many biological questions that require single-cell analysis of gene sequences, including analysis of clonally distributed dimeric immunoreceptors on lymphocytes (T cells and B cells) and/or the accumulation of driver/accessory mutations in polyclonal tumors. Lysis of bulk cell populations results in mixing of gene sequences, making it impossible to know which pairs of gene sequences originated from any particular cell and obfuscating analysis of rare sequences within large populations. Although current single-cell sorting technologies can be used to address some of these qu

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26

Brasileiro, Nuno Filipe Fernandes. "Incorporação da Análise BowTie na metodologia adotada pela AdDP para avaliação de risco." Master's thesis, 2020. https://hdl.handle.net/10216/129963.

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27

Brasileiro, Nuno Filipe Fernandes. "Incorporação da Análise BowTie na metodologia adotada pela AdDP para avaliação de risco." Dissertação, 2020. https://hdl.handle.net/10216/129963.

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28

Chen, Peng-Yu, and 陳鵬宇. "Study on Optical Sensing Capabilities of Metallic Nano-Bowtie Aperture with Projected Pad Underneath." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/758j5j.

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碩士<br>國立交通大學<br>光電工程研究所<br>104<br>We propose a novel metallic nano-bowtie aperture with projected pad underneath (BAPPU) with localized surface plasmon resonance (LSPR). In this structure, the bowtie aperture induces strong near-field in the gap region owing to coupling effect and lightning effect. In addition, our proposed BAPPU structure can be realized via simplified fabrication process, which make fabricating it on fiber-tip possible and useful in biologic and chemical sensing. In experiments and simulations, we found that there are two significant LSPR modes, fundamental and high order mo

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29

See, Chan H., Raed A. Abd-Alhameed, Siau Wei Jonis Chung, Dawei Zhou, Hussain Al-Ahmad, and Peter S. Excell. "The Design of a Resistively Loaded Bowtie Antenna for Applications in Breast Cancer Detection Systems." 2012. http://hdl.handle.net/10454/6178.

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A resistively loaded bowtie antenna, intended for applications in breast cancer detection, is adaptively modified through modelling and genetic optimization. The required wideband operating characteristic is achieved through manipulation of the resistive loading of the antenna structure, the number of wires, and their angular separation within the equivalent wire assembly. The results show an acceptable impedance bandwidth of 100.75%, with a challenge VSWR <; 2, over the interval from 3.3 GHz to 10.0 GHz. Feasibility studies were made on the antenna sensitivity for operation in a tissue-equiva

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30

Huang, Shao-Yu, and 黃紹宇. "The Studies of Extraordinary Transmission of Periodic Bowtie-shaped Aperture Array and the Wavelength-selective Multi-Spectral IR Thermal Emitters." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/09303224859646126025.

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碩士<br>國立臺灣大學<br>電子工程學研究所<br>99<br>The extraordinary transmission through a silver film perforated with bowtie-shaped aperture array arranged in a rectangle lattice is investigated in theory and experiment. It is found that the second order Ag/Si modes have stronger transmission intensity than the fundamental one, which can be ascribed to the magnetic enhancement between the triangular tips. By increasing the tip separation, tip angle or the metallic film thickness, the enhancement effect of the second order modes vanishes gradually. In addition, the characteristics of the plasmonic thermal emi

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31

Yu, Chih-Wei, and 余致緯. "The Characteristics of Higher Order Modes Analysis on Non-Centrosymmetric Geometric Shape and Bowtie-Like with Both Ag/Si or Metal/Insulator/Metal Tri-layer Structures." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/79577595741477016699.

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碩士<br>國立臺灣大學<br>電子工程學研究所<br>100<br>The thesis discussed the higher order modes enhancement on non-centrosymmetric, double apertures and bowtie-like hole array by experimental and simulation results. Considering the extraordinary transmission on these two types hole array, higher order modes were measured and calculated directly. In non-centrosymmetric hole array, trumpet shape hole array was investigated in the relation between main peaks and length of X. By varying the periodic parameter Px, the interaction between Wood’s anomaly and LSRs were shown clearly. Also, double LSRs are shown in MIM

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Jean-Louis, Martineau. "Séquençage d’exomes d’une cohorte de familles caucasiennes simplex dont les patients sont atteints du syndrome d’interruption de la tige hypophysaire." Thèse, 2017. http://hdl.handle.net/1866/21577.

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