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Dissertations / Theses on the topic 'Variable-distance'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Todd, I. G. "Variable stars as distance indicators in M31." Thesis, Queen's University Belfast, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.492481.

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The distance scale in the universe is of key importance. To detennine the distance to objects far out in the universe, reliable distance indicators, or standard candles must be found and reliably characterised. This study focussed on the detection of cepheids and eclipsing binaries in the Andromeda Galaxy (M31) using the relatively new method of Difference Imaging Analysis (DIA), deemed to yield better results in crowded fields. Many eclipsing binaries and cepheids were found. Due the lack of spectroscopy, the calculation of distance using EBs was not possible, however accurate locations and p

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2

Vilardell, Sallés Francesc. "Determination of the distance to the Andromeda Galaxy using variable stars." Doctoral thesis, Universitat de Barcelona, 2009. http://hdl.handle.net/10803/751.

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The Andromeda Galaxy (M31) is an excellent distance calibrator in the Cosmological Distance Ladder. We present the first direct distance determination to M31 using eclipsing binaries (EBs). EBs provides direct distance determinations because the fundamental properties of their components can be measured without any previous calibration. Distance determination with EBs requires, at least, two data sets: time series photometry and spectroscopy.<br/>We obtained high quality light curves (rms~0.01 mag) from a 34'x34' photometric survey in M31 (in Johnson B and V filters) carried out at the 2.5 m I

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Yuan, Qingcong. "INFORMATIONAL INDEX AND ITS APPLICATIONS IN HIGH DIMENSIONAL DATA." UKnowledge, 2017. http://uknowledge.uky.edu/statistics_etds/28.

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We introduce a new class of measures for testing independence between two random vectors, which uses expected difference of conditional and marginal characteristic functions. By choosing a particular weight function in the class, we propose a new index for measuring independence and study its property. Two empirical versions are developed, their properties, asymptotics, connection with existing measures and applications are discussed. Implementation and Monte Carlo results are also presented. We propose a two-stage sufficient variable selections method based on the new index to deal with large

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4

Mandal, Abhyuday. "Some Contributions to Design Theory and Applications." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7142.

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The thesis focuses on the development of statistical theory in experimental design with applications in global optimization. It consists of four parts. In the first part, a criterion of design efficiency, under model uncertainty, is studied with reference to possibly nonregular fractions of general factorials. The results are followed by a numerical study and the findings are compared with those based on other design criteria. In the second part, optimal designs are dentified using Bayesian methods. This work is linked with response surface methodology where the first step is to perform facto

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5

Nowakowski, Samuel. "Détection de défauts dans les séries temporelles." Nancy 1, 1989. http://www.theses.fr/1989NAN10074.

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Utilisation des calculs de distances pour résoudre des problèmes rencontrés pour les tests de détection de changements tels que le test du rapport de vraisemblance généralisé. Expérimentation de la méthode de la variable instrumentale

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6

Radišauskaitė, Simona. "Baigtinės populiacijos dviejų sumų santykio kalibruotieji įvertiniai." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130805_110347-82806.

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Šiame darbe nagrinėjami dviejų sumų santykio kalibruotieji įvertiniai, kuriuose panaudojama daugiau negu po vieną kiekvieno tyrimo kintamojo papildomąjį kintamąjį. Naudojant skirtingas kalibravimo lygtis ir atstumo funkcijas čia sukonstruoti šeši tokio tipo įvertiniai. Taikant Teiloro ištiesinimo, visrakčio ir atsitiktinių grupių metodus sukonstruoti keleto naujų santykio įvertinių dispersijos įvertiniai. Modeliuojant nauji santykio įvertiniai lyginami tarpusavyje bei su standartiniu ir A. Plikuso įvertiniais. Tiriama, kaip įvertiniu tikslumą įtakoja imties dydis ir laisvai pasirenkami svoriai

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7

Nguyen, Van Quang. "Méthodes d'éclatement basées sur les distances de Bregman pour les inclusions monotones composites et l'optimisation." Thesis, Paris 6, 2015. http://www.theses.fr/2015PA066183/document.

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Le but de cette thèse est d'élaborer des méthodes d'éclatement basées sur les distances de Bregman pour la résolution d'inclusions monotones composites dans les espaces de Banach réels réflexifs. Ces résultats nous permettent d'étendre de nombreuses techniques, jusqu'alors limitées aux espaces hilbertiens. De plus, même dans le cadre restreint d'espaces euclidiens, ils donnent lieu à de nouvelles méthodes de décomposition qui peuvent s'avérer plus avantageuses numériquement que les méthodes classiques basées sur la distance euclidienne. Des applications numériques en traitement de l'image sont

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8

Peng, Wendi Surveying &amp Spatial Information Systems Faculty of Engineering UNSW. "Roles of factors in simulation of parking guidance and information systems." Publisher:University of New South Wales. Surveying & Spatial Information Systems, 2008. http://handle.unsw.edu.au/1959.4/42788.

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The Parking Guidance and Information (PGI) system is an important application of Intelligent Transport System (ITS), which has been shown to be an effect service for traffic information and parking management. The roadside Variable Message Sign (VMS) board has been the usual media for the publication of parking information in early PGI systems, and its performance over the years has been studied via simulations and questionnaire surveys. However, survey results show significant discrepancies across various traffic networks in different areas. More recently, parking information services have be

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9

Челядін, Д. О. "Інтерактивні практичні завдання для проведення математичних операцій над ДВВ". Thesis, Сумський державний університет, 2015. http://essuir.sumdu.edu.ua/handle/123456789/43378.

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При дослідженні багатьох проблем виникають такі випадкові події, наслідком яких є поява деякого числа, заздалегідь невідомого. Тому ці числові значення – випадкові. Дискретна випадкова величина (ДВВ) приймає відокремлені ізольовані одне від одного числові значення (їх можна пронумерувати) з відповідними ймовірностями.

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10

Yang, Junjie. "Fault Diagnosis and Prognosis in multivariate complex systems." Electronic Thesis or Diss., université Paris-Saclay, 2023. http://www.theses.fr/2023UPAST001.

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Le diagnostic et le pronostic des défaillances ont suscité une attention considérable dans l'industrie et le monde universitaire en raison des exigences croissantes en matière de fiabilité, de disponibilité, de maintenabilité et de sécurité.Malgré les progrès significatifs, les méthodologies de diagnostic de défauts existantes souffrent toujours de problèmes, tels que le manque de données défectueuses suffisantes pour la formation, l'inefficacité des données distribuées complexes, la faible sensibilité aux défauts naissants et l'interférence du bruit et des valeurs aberrantes.Par conséquent, c

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11

Signorelli, Shirley Ferreira. "Um ambiente virtual para o ensino semipresencial de funções de uma variável real: design e análise." Pontifícia Universidade Católica de São Paulo, 2007. https://tede2.pucsp.br/handle/handle/11284.

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Made available in DSpace on 2016-04-27T16:58:33Z (GMT). No. of bitstreams: 1 Shirley Ferreira Signorelli.pdf: 4346228 bytes, checksum: a37d23996da101385ce1df722242946c (MD5) Previous issue date: 2007-10-31<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The purpose of this investigation was the elaboration and implementation of a virtual environment for a part time distance course for students of the Computer Science and Systems of Information. The students failed in a former discipline that approaches topics of elementary Mathematics. It happened in a particular university

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12

Darwiche, Mostafa. "When operations research meets structural pattern recognition : on the solution of error-tolerant graph matching problems." Thesis, Tours, 2018. http://www.theses.fr/2018TOUR4022/document.

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Cette thèse se situe à l’intersection de deux domaines de recherche scientifique la Reconnaissance d’Objets Structurels (ROS) et la Recherche Opérationnelle (RO). Le premier consiste à rendre la machine plus intelligente et à reconnaître les objets, en particulier ceux basés sur les graphes. Alors que le second se focalise sur la résolution de problèmes d’optimisation combinatoire difficiles. L’idée principale de cette thèse est de combiner les connaissances de ces deux domaines. Parmi les problèmes difficiles existants en ROS, le problème de la distance d’édition entre graphes (DEG) a été sél

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13

Trahin, Boris. "Étalonnage de l'échelle des distances dans l'ère Gaia : les étoiles pulsantes RR Lyrae et Céphéides." Thesis, Paris Sciences et Lettres (ComUE), 2019. http://www.theses.fr/2019PSLEO018.

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Les étoiles pulsantes sont utilisées pour estimer les distances dans l’Univers, au moyen de la relation liant leur période de pulsation à leur magnitude absolue. La calibration de cette relation période-luminosité est réalisée via la détermination de distances indépendantes, notamment par la méthode de la parallaxe de pulsation. Cependant, la précision de cette méthode est aujourd’hui encore principalement limitée par le facteur de projection (p-facteur), un paramètre permettant de remonter à la vitesse pulsante de l’étoile à partir des vitesses radiales mesurées par spectroscopie. Mon travail

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14

Arendt, Christopher D. "Adaptive Pareto Set Estimation for Stochastic Mixed Variable Design Problems." Ft. Belvoir : Defense Technical Information Center, 2009. http://handle.dtic.mil/100.2/ADA499860.

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15

BEZERRA, WELLINGTON LUCIO. "The tool for educational use of a calculation of variable in education semipresential courses: the case of the Federal Institute of CearÃ." Universidade Federal do CearÃ, 2012. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=13784.

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Esta dissertaÃÃo analisa o uso das ferramentas de tecnologia da informaÃÃo e comunicaÃÃo (fÃrum, chat e videoaula) como possibilidade pedagÃgica na disciplina de CÃlculo I (uma variÃvel) no curso de Licenciatura em MatemÃtica na modalidade semipresencial do Instituto Federal do CearÃ - IFCE, com a finalidade de promover uma aprendizagem mais vivÃncia atravÃs do uso das ferramentas de aprendizagens e assim combater as principais dificuldades apresentadas pelos estudantes, as quais tem acarretado evasÃes e reprovaÃÃes. Dentre os instrumentos e mÃtodos para respaldar este trabalho privilegiou-se

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16

CHI, CHUN-HAO, and 戚峻豪. "A Modified Bilateral Filter by Variable Template and Different p-Norm Distance." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/20056690231286387777.

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碩士<br>玄奘大學<br>資訊管理學系碩士班<br>104<br>Due to the image transferring in the internet will produce noise, removing image noise is very important.General processing for the use of median filter, median or average of its neighborhood in the spatial domain to replace, but does make image blur. Bilateral filtering is a popular denoising technique that smooths images while preserving edges by means of a non-linear combination of adjacent pixel values. The denoising performance is sensitive to the choice of the bilateral filter parameters. Refer to other existing models, we propose a different working te

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17

Liao, Shaoting, and 廖紹婷. "The study on Communication Style, Job Performance and Job Satisfaction: Power Distance as a Moderating Variable." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/51567431095768692585.

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18

Chen, Ko-Huan, and 陳可桓. "Optimizing the station locations in bike sharing systems considering the variable demand affected by access distance." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/9g7ud5.

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碩士<br>國立交通大學<br>運輸與物流管理學系<br>105<br>Over the past several decades, given the rising awareness about our environment, many governments in the world have adopted various policies to enhance environment protection and to facilitate sustainable development. For the transportation sector, promoting green transportation has been a well-recognized trend. This study focuses on the public bicycle system (PBS), which has been rapidly implemented in many cities. In general, the decision problems of transportation systems can be categorized as the long-term strategic decision and the short-term operationa

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19

LI, Chi-Jan, and 李其展. "Implementation of Distance Learning Education Module for PLC Variable-Frequency/Servo Motor Control Under LabVIEW Environment." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/3ch688.

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碩士<br>崑山科技大學<br>電機工程研究所<br>103<br>The distance learning education (DLE) has been carried out many years in Taiwan. It is still an important item so far in the education environment. DLE lets learners acquire some educational knowledge anytime and anywhere they need. But limited to the space and facilities, DLE only offers theoretical courses. For the courses requiring practical operation are not easy to be developed for DLE. To solve this problem, this thesis proposes a DLE module for PLC variable-frequency/servo (VF/S) motor control under LabVIEW environment, which offers beginners to on-line

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20

CHANG, LI-CHU, and 張麗珠. "The influence of catering service technology innovation on service value – using psychological distance as moderation variable." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/4m3tz2.

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碩士<br>實踐大學<br>餐飲管理學系餐飲產業創新碩士班<br>107<br>Numerous new technologies have emerged rapidly; the revolutions that affected industrial infrastructures have also changed the pattern livelihood consumption. Catering companies in various countries have utilized technology to change their service models. Noun restaurants, such as smart restaurants, technology restaurants, self-service restaurants and other new types of restaurants have appeared. In the current competitive market, catering businesses are focusing on customer's needs, in order to create distinctiveness that exceeds customer's expectations

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21

Hoffmann, Samantha L. "Cepheid Variables and their Application to the Cosmological Distance Scale." Thesis, 2013. http://hdl.handle.net/1969.1/149608.

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In the current era of “precision cosmology”, measuring the expansion rate of the Universe (Hubble constant, or H0) more accurately and precisely helps to better constrain the properties of dark energy. Cepheid-based distances are a critical step in the Extragalactic Distance Scale and have been recently used to measure H0 with a total uncertainty of only 3.4%. I will present my work on Cepheid variables in three different galaxies as part of this effort. NGC 4258 is a galaxy with a very precise and accurate distance (3% uncertainty) based on radio interferometric observations of water m

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22

LIN, YI-HUA, and 林宜樺. "The Influence of Expatriates’ Social Support and Organizational Commitment on their Job Performance ─ Cultural Distance as the Moderating Variable." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/398egt.

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碩士<br>長榮大學<br>經營管理研究所<br>105<br>With the trend of business globalization, expatriate have become a significant part of globalized management. This research aims to investigate the relationship of Social Support and Job Performance in six factories of LingYih Group, which are manufacturing shoes in Vietnam, Myanmar and China. Also examining the mediating effects of Organizational Commitment on the relationship between two constructs of Social Support and Job Performance. Specifically, we propose that Cultural Distance moderate the expatriate between Social Support and Organizational Commitment;

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23

Huang, Chun, and 黃淳. "An Efficient Constrained Tree Search Algorithm for Determining the Free Distance of A Variable-Length Error-Correcting Prefix Code." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/7ucwdk.

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碩士<br>國立交通大學<br>電信工程研究所<br>105<br>In this paper, a new tree search algorithm for determining the free distance of variable-length error-correcting prefix code (VLECPC) is proposed. The idea is to structure all pairs of codeword-concatenation sequences as a tree, over which a pair of sequences that decide the free distance is located. Constraints that compromise no optimality in determining the free distance will be proven and applied to speed up the algorithm. In the particular case that only two codewords exist in a VLECPC, we show that all candidate equal-length codeword-concatenation sequen

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24

Lin, Yi-Hua, and 林宜樺. "The Influence of Expatriates’ Social Support and Organizational Commitment on their Job Performance — Cultural Distance as the Moderating Variable." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/4py574.

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碩士<br>長榮大學<br>經營管理研究所<br>105<br>With the trend of business globalization, expatriate have become a significant part of globalized management. This research aims to investigate the relationship of Social Support and Job Performance in six factories of LingYih Group, which are manufacturing shoes in Vietnam, Myanmar and China. Also examining the mediating effects of Organizational Commitment on the relationship between two constructs of Social Support and Job Performance. Specifically, we propose that Cultural Distance moderate the expatriate between Social Support and Organizational Commitment;

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25

Cea, Roa Ingrid Beatriz. "Effets des coupes partielles et à rétention variable sur la distance de débardage et les coûts de récolte : étude de cas." Mémoire, 2011. http://www.archipel.uqam.ca/4196/1/M12124.pdf.

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Il est admis que les coûts de récolte d'une coupe partielle sont plus importants que la coupe totale ou la coupe avec protection de la régénération et des sols (CPRS). Cette prémisse limite certainement la pratique de la coupe partielle en forêt boréale et empêche l'obtention des avantages d'une foresterie plus fine qui répondrait à des objectifs de conservation tout en réduisant les coûts de récolte. Afin de tenir compte des variantes de la coupe partielle et de l'intégration de la rétention des attributs dans les blocs de récolte, des ajustements au calcul des coûts de récolte ont été propos

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26

"Parametric classification and variable selection by the minimum integrated squared error criterion." Thesis, 2012. http://hdl.handle.net/1911/70219.

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This thesis presents a robust solution to the classification and variable selection problem when the dimension of the data, or number of predictor variables, may greatly exceed the number of observations. When faced with the problem of classifying objects given many measured attributes of the objects, the goal is to build a model that makes the most accurate predictions using only the most meaningful subset of the available measurements. The introduction of [cursive l] 1 regularized model titling has inspired many approaches that simultaneously do model fitting and variable selection. If param

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27

D'Antuono, Pietro. "Analytical models for fatigue life prediction of metals in the stress life approach." Doctoral thesis, 2019. http://hdl.handle.net/11589/184602.

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Questa tesi fornisce una raccolta di modelli stress-life (S/N) per la valutazione della vita a fatica di componenti metallici sia lisci che intagliati sottoposti a sollecitazioni di ampiezza sia costante che variabile. Il documento è suddiviso in cinque capitoli, il primo è una panoramica della fatica in generale e, nello specifico, degli strumenti necessari nei capitoli successivi. Nel capitolo 2 la transizione di da intaglio di tipo "crack like" a "blunt" è adattata all'approccio stress-life attraverso la teoria delle distanze critiche, quindi viene definita una nuova curva S/N modellante ta

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28

Ionica, Irina. "Effet de champ et blocage de Coulomb dans des nanostructures de silicium élaborées par microscopie à force atomique." Phd thesis, 2005. http://tel.archives-ouvertes.fr/tel-00097465.

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Cette thèse porte sur l'étude du transport électronique dans des structures de faibles dimensionnalités en silicium dopé. Elle s'inscrit notamment dans le contexte de la compréhension du transport mésoscopique et de la miniaturisation des dispositifs MOS.<br />Les nanostructures sont réalisées par oxydation localisée sous la pointe d'un microscope à force atomique (AFM), sur des substrats silicium sur isolant (SOI) ultra-minces. Cette technique a été choisie pour sa souplesse, sa résolution (10nm), l'absence d'effet de proximité. Elle permet d'obtenir des nanostructures de quelques centaines d

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