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Dissertations / Theses on the topic 'Curve radius'

Author: Grafiati

Published: 10 December 2022

Last updated: 31 July 2025

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1

Tukuafu, Jesse Tipasa. "The Effects of Indoor Track Curve Radius on Sprint Speed and Ground Reaction Forces." BYU ScholarsArchive, 2010. https://scholarsarchive.byu.edu/etd/2348.

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Sprinting on a curve is significantly slower than on a straightaway. Although the dimensions vary from track to track, indoor track curves are among the tightest curves that athletes will sprint at maximal speed. Previous studies have provided theories for how speed attenuation occurs when running on a curve. Yet, no previous research has determined how the variability of indoor track curve radii affects trained sprinters at maximal speeds. Purpose: To determine the differences in running speeds, ground time (GT), and medio-lateral (ML) impulse, with different indoor track radii. A secondary p

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2

Kokeš, Ondřej. "Optimalizace vybraných návrhových prvků ČSN pro projektování pozemních komunikací." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227622.

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Diploma thesis describes and researches some proposed ČSN 73 6101 elements for road design and their subsequent comparison with Norma de Traçado that is main law for road design in Portugal. In practical part, the speed of vehicles during moving on direction curves is researched and subsequently coherence of theoretical assumptions with real speeds is compared. The main aim of this work is to verify the assumption that design speed does not correspond to the real speed that drivers move on road structures.

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3

Aryal, Prabin. "Optimization of geometric road design for autonomous vehicle." Thesis, KTH, Byggvetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-290030.

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These days most of the research related to autonomous vehicle technology focuses on vehicle technology itself and lesser on road infrastructure, including geometric design. This research project aims to lower the deficiency of research works required to make the optimized geometric road design for autonomous vehicle sustainable. In geometric design, significant concerns are designing the road geometrics such as lane width, the radius of horizontal curves, sag vertical curves and crest vertical curves, extra widening, setback distance, and intersection, making the road safer for the vehicles to

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4

Stránský, Jakub. "Optimalizace vybraných návrhových prvků ČSN pro projektování pozemních komunikací." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227496.

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The master‘s thesis focuses on the optimization of the design values of curves of the horizontal alignments of the roads. It deals with the comparison of values between czech and foreign standards and differences between them. The practical part examines the values of the real speeds of vehicles passing through the curves of various parameters that were measured during measurements of selected curves during 2014. From these data a new design values are derived that could be used for the design of horizontal alignments.

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5

Huerter, Kimberly Jean Durumeric Oguz. "Non uniform thickness and weighted global radius of curvature of smooth curves." [Iowa City, Iowa] : University of Iowa, 2009. http://ir.uiowa.edu/etd/380.

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6

Cleary, Daniel. "CURVED AND TIGHT RADIUS INSPECTION OF CARBON FIBER REINFORCED POLYMERS WITH ACOUSTOGRAPHY." OpenSIUC, 2018. https://opensiuc.lib.siu.edu/theses/2390.

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In this research, Acoustography Nondestructive Evaluation method was investigated for inspecting “tight radii” in carbon fiber reinforced polymer (CFRP) components. Ultrasonic inspection of tight radii is challenging because of refraction and/or mode conversion of ultrasound waves at the entry and exiting surfaces of the tight radii. Snell’s law was used to first study the refraction and/or mode conversion behavior of the ultrasound beam at the entry and exiting surfaces of a CFRP panel; to help establish the angular range over which ultrasound is transmitted through CFRP material. Snell’s law

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Huerter, Kimberly Jean. "Non uniform thickness and weighted global radius of curvature of smooth curves." Diss., University of Iowa, 2009. https://ir.uiowa.edu/etd/380.

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The uniform thickness of knots has been used to investigate knotted polymers and DNA strands. Even though these structures carry great length, it is unusual for them to contain knots. However, when they do, it can cause gene malfunctions. In fact, scientist have demonstrated that knotting may cause a loss of genetic material by blocking DNA replication and also blocking transcription of a gene into its active protein. Since it is possible for biological structures, such as polymers and DNA strands, to exhibit forces or charges of different strengths the idea of a non uniform thickness of a kno

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8

Brucalassi, Anna. "Search for extra-solar planets with high precision radial velocity curves." Diss., Ludwig-Maximilians-Universität München, 2014. http://nbn-resolving.de/urn:nbn:de:bvb:19-173637.

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This Ph.D. Thesis has as general subject the study of extrasolar planets using the radial velocity technique from both, instrumental and observative, points of view. Two main parts compose the work: the upgrade of the spectrograph FOCES, a high resolution spectrograph that will be installed next year at the Wendelstein Observatory, and the search of giant planets around stars in the open cluster Messier-67 (M67).<br>Die vorliegende Dissertation behandelt die Suche von extra-solaren Planeten mit der Radialgeschwindigkeits Methode und zwar sowohl in Bezug auf die dafür notwendige Instrumentieru

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Van, der Walt Marizelle. "Investigating the empirical relationship between oceanic properties observable by satellite and the oceanic pCO₂ / Marizelle van der Walt." Thesis, North-West University, 2011. http://hdl.handle.net/10394/9536.

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In this dissertation, the aim is to investigate the empirical relationship between the partial pressure of CO2 (pCO2) and other ocean variables in the Southern Ocean, by using a small percentage of the available data. CO2 is one of the main greenhouse gases that contributes to global warming and climate change. The concentration of anthropogenic CO2 in the atmosphere, however, would have been much higher if some of it was not absorbed by oceanic and terrestrial sinks. The oceans absorb and release CO2 from and to the atmosphere. Large regions in the Southern Ocean are expected to be a CO2 sink

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Brucalassi, Anna [Verfasser], and Roberto Philip [Akademischer Betreuer] Saglia. "Search for extra-solar planets with high precision radial velocity curves / Anna Brucalassi. Betreuer: Roberto Philip Saglia." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2014. http://d-nb.info/1059351056/34.

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Sjödin, Hällstrand Andreas. "Bilinear Gaussian Radial Basis Function Networks for classification of repeated measurements." Thesis, Linköpings universitet, Matematisk statistik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-170850.

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The Growth Curve Model is a bilinear statistical model which can be used to analyse several groups of repeated measurements. Normally the Growth Curve Model is defined in such a way that the permitted sampling frequency of the repeated measurement is limited by the number of observed individuals in the data set.In this thesis, we examine the possibilities of utilizing highly frequently sampled measurements to increase classification accuracy for real world data. That is, we look at the case where the regular Growth Curve Model is not defined due to the relationship between the sampling frequen

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12

Ciomber, Isabelle, and Roland Jakel. "Systematic Analysis and Comparison of Stress Minimizing Notch Shapes : Obtaining a stress concentration factor of Kt=1 without FEM-Code." Universitätsbibliothek Chemnitz, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-141533.

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Als Stand der Technik sind einfache, kreisförmige Verrundungen zur Reduktion von Kerbspannungen an Querschnittsübergängen bekannt, für die aus Tabellenwerken / Diagrammen in der Literatur die Formzahl einfach abgelesen werden kann. Die Effizienz der Spannungsreduktion solcher Lösungen ist jedoch sehr begrenzt. Ziel der Arbeit ist es daher, dem Konstrukteur bzw. Berechnungsingenieur ein Verfahren in die Hand zu geben, mit dem er für Standardquerschnittsübergänge und Standardlastfälle "Nicht-Kreiskerben" ohne teure und zeitaufwendige FEM-Analyse einfach durch Nutzung geeigneter Formzahldiagramme

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Patková, Aneta. "Dřevěná konstrukce planetária." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2012. http://www.nusl.cz/ntk/nusl-225552.

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The subject matter of this theses is a static design and appraisal of a structure of the planetarium roof. It is a cupola over the circular plan and consists of two radial arched ribs. This theses contains two varieties of its structure.

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Teepakorn, Chalore. "Numerical simulation and experimental study of membrane chromatography for biomolecule separation." Thesis, Lyon 1, 2015. http://www.theses.fr/2015LYO10299/document.

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La chromatographie membranaire est une alternative à la chromatographie classique sur résine basée sur le transport convectif des solutés à travers une membrane microporeuse plutôt que par le transport diffusif des solutés dans les particules de résines. Cette technique présente les avantages de diminuer les phénomènes de diffusion, de réduire les temps de séjour et les pertes de charge, et de permettre la purification rapide de quantités importantes de molécules. La chromatographie membranaire connaît un fort succès commercial. Une gamme importante de membranes chromatographiques mettant en j

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15

Belhadi, M'hamed. "Étude de machines à réluctance variable pour une application de traction électrique : réduction des ondulations de couple et des efforts radiaux." Thesis, Paris 11, 2015. http://www.theses.fr/2015PA112185.

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Le mémoire traite de la machine à réluctance variable en proposant d'une manière simultanée et du point de vue conception des solutions à ses deux inconvénients majeurs à savoir les ondulations de couple et les efforts radiaux. Les premières se propagent le long de la chaine de transmission diminuant ainsi le confort des usagers et les deuxièmes sont à l’origine d’une nuisance sonore. Dans une première partie et en s’intéressant à une structure axiale caractérisée par une faible force radiale, un bilan sur cette structure est donc établi. En effet, une configuration à deux stators et un rotor

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16

Darvish, Manoochehr [Verfasser], Christian Oliver [Akademischer Betreuer] Paschereit, and Stefan [Akademischer Betreuer] Frank. "Numerical and experimental investigations of the noise and performance characteristics of a radial fan with forward-curved blades / Manoochehr Darvish. Gutachter: Christian Oliver Paschereit ; Stefan Frank. Betreuer: Christian Oliver Paschereit ; Stefan Frank." Berlin : Technische Universität Berlin, 2015. http://d-nb.info/1070276693/34.

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17

Schiavon, Laurent. "Conditions de monotonie de la courbure pour les courbes et splines d'interpolation." Valenciennes, 2002. https://ged.uphf.fr/nuxeo/site/esupversions/ebd449f2-087e-4588-b4a1-bedcc9b86660.

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Pour une courbe, la courbure est une grandeur géométrique déterminante pour sa forme. Dans de nombreuses applications de la CAO (automobile, aéronautique), les courbes que l'on cherche à modéliser doivent être à courbure monotone, dans le but d'obtenir des formes aérodynamiques et esthétiques. Dans ce travail, nous apportons des solutions via les courbes polynomiales cubiques et rationnelles quadratiques (arcs coniques) quisont controlées par un ensemble de points (et de masses dans le cas rationnel)<br>For a curve, the curvature is a deciding geometric feature for its shape. For some applicat

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18

Губар, Олексій Васильович, Алексей Васильевич Губарь, Alexei V. Gubar та Aleksey V. Gubar. "Обґрунтування норм улаштування та утримання колії для кривих з радіусами менше 350 метрів". Thesis, Видавництво Дніпропетровського національного університету залізничного транспорту імені академіка В. Лазаряна, 2011. http://eadnurt.diit.edu.ua/jspui/handle/123456789/757.

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Губар, О. В. Обґрунтування норм улаштування та утримання колії для кривих з радіусами менше 350 метрів : авт. дис. к. т. н.: 05.22.06 / О. В. Губар ; Дніпропетр. нац. ун-т залізн. трансп. ім. акад. В. Лазаряна. - Д., 2011.<br>UA: АНОТАЦІЯ. Дисертація присвячена обґрунтуванню норм улаштування та утримання колії для кривих з радіусами менше 350 м шляхом впровадження конструкції рейкових скріплень з можливістю складання та регулювання ширини колії у як в межах кругових, так і перехідних кривих для типових залізобетонних шпал. Розроблено математичну модель взаємодії рухомого складу і колії та п

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Sfecci, Andrea. "Some existence results for boundary value problems : a promenade along resonance." Doctoral thesis, SISSA, 2012. http://hdl.handle.net/20.500.11767/4703.

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I present many existence result to many boundary value problems, in particular periodic problems and Neumann elliptic problems. The results use the method of the topological degree theory. In the thesis different problems are treated: planar systems, systems with a singularity, impact oscillators, coupled oscillators and radial elliptic problems.

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20

Ellouze, Mohamed. "Synthèse et effet de la substitution limitée et de l'insertion d'atomes (H,C et N) sur les caractéristiques cristallographiques et magnétiques des composés R2Fe17." Grenoble INPG, 1998. http://www.theses.fr/1998INPG0166.

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L'effet d'une substitution limitee du fer par si, ti, mn, co dans les composes intermetalliques terre rarefer : r#2fe#1#7 (r designant ici y, nd, sm) a ete etudie sur des alliages prepares par fusion suivie de recuit. Il depend du rayon atomique et du magnetisme du substituant. La diffraction des rayons x montre que la symetrie rhomboedrique ou hexagonale est conservee. La maille cristalline est dilatee et/ou comprimee suivant le substituant. Le point de curie t#c, mesure a la balance thermomagnetique, s'eleve avec si, ti et co. L'aimantation a saturation, mesuree au magnetometre de foner, dim

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Jaïdane, Nejmeddine. "Etude du transfert de charge entre des atomes de soufre et des protons." Paris 7, 1987. http://www.theses.fr/1987PA077121.

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Calculs scf et ci des courbes de potentiel du systeme s+h**(+) dans les symetriplets pi et delta internenant dans la reaction, avec des orbitales moleculaires occupees representees par des orbitales atomiques polarisees et des orbitales moleculaires virtuelles donnees par la projection d'orbitales atomiques orthogonalement aux orbitales occupees. Traitement de la dynamique de l'echange de charge dans une representation diabatique ou les couplages radiaux sont nuls et l'echange de charge est induit par des couplages de type electronique. Construction d'une representation effective de dimension

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22

Zaghlool, Baher SalahElDeen Othman Ahmed. "Behaviour of three-dimensional concrete structures under concurrent orthogonal seismic excitations." Thesis, University of Canterbury. Civil Engineering, 2007. http://hdl.handle.net/10092/1177.

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This thesis is a study into the response and seismic safety of three-dimensional multi-storey concrete structures under concurrent orthogonal seismic excitations. It employs the nonlinear time-history method as its analysis tools. Time-history analyses rely heavily on their utilised earthquake records. Accordingly, this study examines the different approaches of selecting earthquake suites and develops a methodology of selecting representative earthquake scenarios. This methodology is credibly implemented in selecting a far- and a near field suites representative of the New Zealand seismic haz

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(9825794), Michelle Pearce. "Railway operational benefits from bogie rotation friction management: Numerical simulations of bogie dynamics." Thesis, 2006. https://figshare.com/articles/thesis/Railway_operational_benefits_from_bogie_rotation_friction_management_Numerical_simulations_of_bogie_dynamics/20341539.

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<p> The purpose of this project was to prove or disprove the hypothesis that wheel and rail wear, and incidents of wheel squeal increase with increasing bogie rotation friction, while decreasing bogie rotation friction leads to increased incidents of hunting and increased wheel and rail wear. Therefore for any given combination of factors (vehicle type, curve radius, wheel profile, etc) an optimal bogie rotation friction level should exist at which incidents of hunting and wheel squeal are eliminated and wheel and rail wear is minimised. </p> <p>In order to test the hypothesis a literature rev

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Little, Kenneth L. "Criticality for the radius of gyration of curves." 2004. http://purl.galileo.usg.edu/uga%5Fetd/little%5Fkenneth%5Fl%5F200408%5Fma.

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Guo, Bor Horng, and 郭柏宏. "Construction and Manipulation of Variable Radius Offset Curves." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/19109110768933394953.

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碩士<br>中原大學<br>資訊工程研究所<br>83<br>Offsetting is a geometric operation which expands outline of a given object, it is one important method for applications of computer graphics, computer aided design (CAD), and image processing. In this paper, we firstly describe mathematic and differential properties of variable radius offset curve,and we also state the difficulty of constructing offset radius function for the design of variable radius offset curves in computer graphic applications. In order t

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Lin, Syh-Yang, and 林賜緣. "Integrated Bezier curves Tangent to the Variable-Radius Circle." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/49670988797875462116.

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碩士<br>東吳大學<br>資訊科學系<br>93<br>Informally, a geometric constraint problem consists of a (finite) set of geometric objects and a (finite) set of constraints between them. The geometric objects are drawn from a fixed universe such as point, lines, circles and conics in the plane. The constraints are logical constraints such as incidence, tangency, perpendicularity, etc., or metric constraints such as distance or angle. There are two problems we want to solve in this work. The first problem is to find the variable radius circle tangents to 3 geometric objects, such as point, line, circle, and Bezie

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Fourie, Daniël Johannes. "Mechanisms influencing railway wheel squeal excitation in large radius curves." Thesis, 2012. http://hdl.handle.net/10210/5334.

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M.Ing.<br>Sound pressure levels exceeding acceptable limits are being generated by trains travelling on the 1000 m radius curved railway line past the town of Elands Bay. Unacceptable sound levels are attributed mainly to top of rail wheel squeal. Top of rail wheel squeal belongs to the family of selfinduced vibrations and originates from frictional instability in curves between the wheel and the rail under predominantly saturated lateral creep conditions. In small radius curves, saturated lateral creep conditions occur due to the steering of railway wheelsets with large angles of attack. Give

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Quaium, Ridwan B. "A Comparison of Vehicle Speed at Day and Night Rural Horizontal Curves." 2010. http://hdl.handle.net/1969.1/ETD-TAMU-2010-05-8024.

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This thesis documents the linear mixed model developed for vehicle speed along two-lane two-way rural horizontal curves in the outside lane. Speed data at each curve was collected at four points along the curve including the midpoint of the curve for a minimum of 48 hours during weekdays. Vehicle speed was analyzed separately for day and night conditions. The horizontal curves were categorized into different groups using different methods using side friction demand, radius and pavement edgeline marking retroreflectivity. In the speed prediction model, radius, superelevation at the midpoint of

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Ho, Cheng-Hsuan, and 何承軒. "Using Radial Basis Function Neural Network to Build the Rating Curve of Irrigation Channel." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/a34448.

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碩士<br>國立臺北科技大學<br>土木工程系土木與防災碩士班<br>106<br>Agricultural farming in Taiwan has always been dominated by paddy fields, which is the main target of irrigation for the irrigation channels. The irrigation channels are spread throughout the planting of rice in Taiwan. If we can understand the rating curve of each channel, it is possible to adjust the flow of each channel to correspond to the amount of water needed for agricultural activities through the water conservancy facilities. Thereby reducing the waste of water resources. Therefore, it is an important goal to investigate the details of each ch

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30

Huang, Zhen Sheng, and 黃振聲. "A Study of Coupler-Curve Synthesis of Four-Bar Linkages Using Radial-Basis-Function Neural Networks." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/63237520113532885800.

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碩士<br>國立中正大學<br>機械系<br>87<br>The purpose of this paper is to propose a methodology to synthesize a four-bar linkage with a desired coupler curve. In this method, four control points are defined to determine the shape of the desired coupler curve. By employing a radial-basis-function neural network, a coupler curve generator is established to relate the control points to the size of the four-bar linkage. When one of the control points is moved, the shape of the coupler curve will be changed and the corresponding four-bar linkage well be generated. In this paper, four control point

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Wang, Ting-hua, and 王廷華. "PREDICTION BY MOVABLE-RATE GRADIENT RADIAL BASIS FUNCTION NEURAL NETWORK WITH FUZZY CURVES." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/25051127833995293341.

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碩士<br>大同工學院<br>電機工程學系<br>85<br>This thesis will provide a faster and simpler radial basis function neuralnetwork from an efficient classifier, a variable learning and a gradient algor-ithm. Its advantage is that we know nothing about the system unless its input-output pairs and use less time learning well. The fuzzy-side view will help usfind the character more simply and quickly. The proposed method will further improve the power and/or the speed of the learning of the Neural Network wh

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VOTRUBOVÁ, Jitka. "Proč nezemřela paní Curieová na akutní nemoc z ozáření?" Master's thesis, 2017. http://www.nusl.cz/ntk/nusl-364554.

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This thesis deals with the scientific achievements of the inspirational scientist Marie Curie Sklodowska as well as with the issue of acute iradiation sickness. Two goals were set in the work. The first objective was to map the life and scientific work of Mrs. Curie. The second objective was to describe the causes and consequences of acute illness from radiation. At the beginning the theoretical part describes the life of Marie Curie Sklodowska. Her difficult beginnings at the University of Paris and her great achievements- discovering the elements of polonium and radium. Further, the work d

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Berg, Sarah A. "Nicotine Use in Schizophrenia: a part of the cure or the disease?" Thesis, 2012. http://hdl.handle.net/1805/2742.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>Nicotine use among individuals with schizophrenia occurs at extremely high rates. The prevailing theory is that individuals with schizophrenia smoke as a form of self-medication to ameliorate sensory and cognitive deficits. However, these individuals also have enhanced rates of addiction to several drugs of abuse and may therefore smoke as a result of enhanced addiction liability. The experiments described herein explored these two hypotheses by assessing the effect that nicotine has on working memory, addiction vulnerability (loc

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Schroeder, Moritz. "Vergleichende Studie der Effektivität vier verschiedener Spültechniken zur Entfernung von Kalziumhydroxid aus einem gekrümmten Wurzelkanalsystem." Doctoral thesis, 2012. http://hdl.handle.net/11858/00-1735-0000-000D-EFEF-9.

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Schreiber, Anja. "Die Methode von Smolyak bei der multivariaten Interpolation." Doctoral thesis, 2000. http://hdl.handle.net/11858/00-1735-0000-0006-B37B-B.

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Hamza, Syed Muhammad Farrukh. "Shear-enhanced permeability and poroelastic deformation in unconsolidated sands." Thesis, 2012. http://hdl.handle.net/2152/ETD-UT-2012-08-6353.

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Heavy oil production depends on the understanding of mechanical and flow properties of unconsolidated or weakly consolidated sands under different loading paths and boundary conditions. Reconstituted bitumen-free Athabasca oil-sands samples were used to investigate the geomechanics of a steam injection process such as the Steam Assisted Gravity Drainage (SAGD). Four stress paths have been studied in this work: triaxial compression, radial extension, pore pressure increase and isotropic compression. Absolute permeability, end-point relative permeability to oil & water (kro and krw), initial wat

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