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Dissertations / Theses on the topic 'Aerial roots'

Author: Grafiati

Published: 28 June 2021

Last updated: 29 July 2025

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1

Manzi, Fraga Matías Jesús. "Involvement of aerial organs on the ABA accumulation in roots of Citrus plants under water deficit." Doctoral thesis, Universitat Jaume I, 2016. http://hdl.handle.net/10803/387227.

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La sequía es una de las situaciones más perjudiciales para el crecimiento y la supervivencia de las plantas. Sin embargo, las plantas han desarrollado estrategias para afrontar dichas condiciones, incluyendo el rápido incremento de ácido abscísico (ABA). Se ha popularizado que las raíces son el órgano capaz de detectar la deshidratación en el substrato, aumentando los niveles de ABA. En esta tesis se ha estudiado la capacidad de las raíces en sintetizar ABA y la implicación del transporte desde tejidos aéreos. La evidencia presentada en esta tesis sugiere que las raíces de las plantas cít

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2

Risante, Ana Paula de Oliveira. "Biodiversidade e estoques de carbono de um Cerrado stricto sensu na Reserva Biológica de Mogi Guaçu-SP." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/91/91131/tde-17072017-121713/.

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O desmatamento para uso agrícola é uma das principais causas da devastação dos biomas brasileiros como a floresta amazônica, o cerrado e a mata atlântica. A grande extensão do desmatamento com a derrubada e a queima das vegetações é a principal fonte de emissão de gases do efeito estufa do Brasil - quarto maior emissor mundial. Uma grande porcentagem do carbono estocado encontra-se na biomassa aérea das fisionomias florestais, enquanto que, nas vegetações de cerrado, a biomassa subterrânea corresponde à maior parte. São ainda poucos os estudos realizados a respeito de estimativas de carbono na

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3

Boeuf, Alexandre. "Kinodynamic motion planning for quadrotor-like aerial robots." Phd thesis, Toulouse, INPT, 2017. http://oatao.univ-toulouse.fr/20169/1/Boeuf.pdf.

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Motion planning is the field of computer science that aims at developing algorithmic techniques allowing the automatic computation of trajecto- ries for a mechanical system. The nature of such a system vary according to the fields of application. In computer animation it could be a humanoid avatar. In molecular biology it could be a protein. The field of application of this work being aerial robotics, the system is here a four-rotor UAV (Unmanned Aerial Vehicle) called quadrotor. The motion planning problem consists in computing a series of motions that brings the system from a given initial c

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Nagori, Chinmay. "Unmanned Aerial Manipulators in Construction - Opportunities and Challenges." Thesis, Virginia Tech, 2020. http://hdl.handle.net/10919/101663.

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Unmanned Aerial Vehicles (UAVs) have now been accepted as an alternative medium to human workers for data collection processes in various industries. The capabilities of UAVs are now being extended from passive tasks of data collection to active tasks of interacting with the environment by equipping them with robotic arms and function as Unmanned Aerial Manipulators (UAMs). Research on Unmanned Aerial Manipulators has been growing in the last few years. The applications of UAMs in terms of sensor installation, inspections, door opening, valve turning, pick and drop, etc. have been studied fo

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5

Dierks, Travis. "Formation control of mobile robots and unmanned aerial vehicles." Diss., Rolla, Mo. : Missouri University of Science and Technology, 2009. http://scholarsmine.mst.edu/thesis/pdf/Dierks_09007dcc806d7f16.pdf.

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Thesis (Ph. D.)--Missouri University of Science and Technology, 2009.<br>Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed January 13, 2009) Includes bibliographical references.

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6

Cowlagi, Raghvendra V. "Hierarchical motion planning for autonomous aerial and terrestrial vehicles." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/41066.

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Autonomous mobile robots - both aerial and terrestrial vehicles - have gained immense importance due to the broad spectrum of their potential military and civilian applications. One of the indispensable requirements for the autonomy of a mobile vehicle is the vehicle's capability of planning and executing its motion, that is, finding appropriate control inputs for the vehicle such that the resulting vehicle motion satisfies the requirements of the vehicular task. The motion planning and control problem is inherently complex because it involves two disparate sub-problems: (1) satisfaction of th

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7

Selvatici, Luca. "Distributed cooperative MPC for aerial robots: a ROS 2 implementation." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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The significant decrease in manufacturing costs of hardware components for quadrotors has greatly encouraged research into the design of flight control algorithm for quadrotors, which has seen great growth in recent years. One of the key aspects of the research is the communication between the quadrotors. Nowadays it is considered essential that the quadrotors can communicate with each other. This feature allows numerous advantages: it is possible to generate a network capable of collaborating to solve complex tasks that single quadrotors would not be able to perform, or complete them in a sho

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8

Shah, Syed Irtiza Ali. "Single camera based vision systems for ground and; aerial robots." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/37143.

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Efficient and effective vision systems are proposed in this work for object detection for ground&aerial robots venturing into unknown environments with minimum vision aids, i.e. a single camera. The first problem attempted is that of object search and identification in a situation similar to a disaster site. Based on image analysis, typical pixel-based characteristics of a visual marker have been established to search for, using a block based search algorithm, along with a noise and interference filter. The proposed algorithm has been successfully utilized for the International Aerial Robotics

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9

Geisert, Mathieu. "Optimal control and machine learning for humanoid and aerial robots." Thesis, Toulouse, INSA, 2018. http://www.theses.fr/2018ISAT0011/document.

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Quelle sont les points communs entre un robot humanoïde et un quadrimoteur ? Et bien, pas grand-chose… Cette thèse est donc dédiée au développement d’algorithmes permettant de contrôler un robot de manière dynamique tout en restant générique par rapport au model du robot et à la tâche que l’on cherche à résoudre. Le contrôle optimal numérique est pour cela un bon candidat. Cependant il souffre de plusieurs difficultés comme un nombre important de paramètres à ajuster et des temps de calcul relativement élevés. Ce document présente alors plusieurs améliorations permettant d’atténuer ces difficu

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Chamberlain, Caleb H. "System Identification, State Estimation, and Control of Unmanned Aerial Robots." BYU ScholarsArchive, 2011. https://scholarsarchive.byu.edu/etd/2605.

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This thesis describes work in a variety of topics related to aerial robotics, including system identification, state estimation, control, and path planning. The path planners described in this thesis are used to guide a fixed-wing UAV along paths that optimize the aircraft's ability to track a ground target. Existing path planners in the literature either ignore occlusions entirely, or they have limited capability to handle different types of paths. The planners described in this thesis are novel in that they specifically account for the effect of occlusions in urban environments, and they can

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Ahmad, Iftikhar. "Attitude estimation of accelerated aerial vehicles using IMU/GPS." Versailles-St Quentin en Yvelines, 2013. http://www.theses.fr/2013VERS0062.

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Ce travail de recherche porte sur l’estimation de l’attitude d’un corps rigide se déplaçant dans l’espace 3D avec une accélération qui n’est ni constante, ni négligeable par rapport à la gravité. Les capteurs utilisés sont une centrale inertielle (IMU) et un GPS qui fournissent respectivement les mesures de vecteurs accélération linéaire, champ magnétique terrestre et vitesse angulaire (données IMU) et la vitesse linéaire absolue (données GPS) du corps en mouvement. Nous avons proposé, dans un premier temps, un observateur par mode glissant d’ordre deux assurant la convergence exponentielle, c

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Naldi, Roberto <1980&gt. "Prototyping, modelling and control of a class of VTOL aerial robots." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2008. http://amsdottorato.unibo.it/636/1/Tesi_Naldi_Roberto.pdf.

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Naldi, Roberto <1980&gt. "Prototyping, modelling and control of a class of VTOL aerial robots." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2008. http://amsdottorato.unibo.it/636/.

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Bicego, Davide. "Design and Control of Multi-Directional Thrust Multi-Rotor Aerial Vehicles with applications to Aerial Physical Interaction Tasks." Thesis, Toulouse, INSA, 2019. http://www.theses.fr/2019ISAT0025.

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Cette thèse aborde l’étude de véhicules aériens autonomes interagissant d’une façon active avec l’environnement, en portant une attention particulière au développement des techniques de modélisation, de conception, et de stratégies de commande appropriées pour ces systèmes. L’étude de ces systèmes étant intrinsèquement complexe et relativement récente, de nouvelles techniques sont nécessaires pour : i) mieux décrire la dynamique du véhicule aérien et ses contraintes d’actionnement ; ii) concevoir efficacement de nouveaux prototypes aériens dotés de propriétés particulières de dextérité et de r

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Riccardo, Zanella Riccardo. "Decoupled Controllers for Mobile Manipulation with Aerial Robots : Design, Implementation and Test." Thesis, KTH, Skolan för elektro- och systemteknik (EES), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-187649.

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This work considers an aerial robot system composed of an Unmanned Aerial Vehicle (UAV) and a rigid manipulator, to be employed in mobile manipulation tasks. The strategy adopted for accomplishing the aerial manipulation is a decomposition of the previous system in two decoupled subsystems: one concerning the center of mass of the aerial robot; and another concerning the manipulator's orientation. Two Lyapunov-based controllers are developed, using a back stepping procedure, for solving the trajectory tracking problems related to the two subsystems. In the controller design, three inputs are a

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Sharma, Rajnikant. "Bearing-Only Cooperative-Localization and Path-Planning of Ground and Aerial Robots." BYU ScholarsArchive, 2011. https://scholarsarchive.byu.edu/etd/2884.

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In this dissertation, we focus on two fundamental problems related to the navigation of ground robots and small Unmanned Aerial Vehicle (UAVs): cooperative localization and path planning. The theme running through in all of the work is the use of bearing only sensors, with a focus on monocular video cameras mounted on ground robots and UAVs. To begin with, we derive the conditions for the complete observability of the bearing-only cooperative localization problem. The key element of this analysis is the Relative Position Measurement Graph (RPMG). The nodes of an RPMG represent vehicle states a

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17

Staub, Nicolas. "Models, algorithms and architectures for cooperative manipulation with aerial and ground robots." Thesis, Toulouse 3, 2018. http://www.theses.fr/2018TOU30169/document.

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Les dernières années ont vu le développement de recherches portant sur l'interaction physique entre les robots aériens et leur environnement, accompagné de l'apparition de nombreux nouveaux systèmes mécaniques et approches de régulation. La communauté centrée autour de la robotique aérienne observe actuellement un déplacement de paradigmes des approches classiques de guidage, de navigation et de régulation vers des tâches moins triviales, telle le développement de l'interaction physique entre robots aériens et leur environnement. Ceci correspond à une extension des tâches dites de manipulation

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18

Simões, Mauro André Oliveira. "Development of an aerial robot for inspection and surveillance." Master's thesis, Universidade de Aveiro, 2009. http://hdl.handle.net/10773/2515.

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Mestrado em Engenharia Mecânica<br>Os veículos aéreos não tripulados são cada vez mais procurados para desempenhar diversas tarefas do quotidiano. Estes sistemas são, no entanto, caros e necessitam de equipas grandes para serem operados. O controlo de veículos aéreos autónomos num ambiente parcialmente conhecido é uma tarefa complexa. Os sistemas actuais são baseados em sensores e sistemas de controlo relativamente dispendiosos, e são frequentemente pesados, necessitando de uma grande quantidade de energia. O principal objectivo deste projecto é desenvolver um sistema aéreo não tripulado, fáci

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19

Tognon, Marco. "Theory and Applications for Control and Motion Planning of Aerial Robots in Physical Interaction with particular focus on Tethered Aerial Vehicles." Thesis, Toulouse, INSA, 2018. http://www.theses.fr/2018ISAT0030.

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Cette thèse se concentre sur les robots aériens autonomes qui interagissent avec l’environnement et en particulier sur la conception de nouvelles méthodes de commande et de planification de mouvement pour tels systèmes. De nos jours, les véhicules aériens autonomes sont de plus en plus utilisés dans des nombreux domaines d’application, mais ils viennent utilisés surtout comme des simples capteurs. Au vu de ça, les défis majeurs dans le domaine de l’interaction physique aérienne, est aujourd’hui d’aller au-delà de cette application limitée, et d’exploiter entièrement les capacités des robots aé

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Ait, Jellal Radouane [Verfasser], and Andreas [Akademischer Betreuer] Zell. "Stereo vision and mapping with aerial robots / Radouane Ait Jellal ; Betreuer: Andreas Zell." Tübingen : Universitätsbibliothek Tübingen, 2020. http://d-nb.info/1212025172/34.

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21

Yang, Jian. "Real-time trajectory planning for ground and aerial vehicles in a dynamic environment." Orlando, Fla. : University of Central Florida, 2008. http://purl.fcla.edu/fcla/etd/CFE0002031.

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22

Archontakis, Andreas. "Assessing the flight quality of a large UAV for sensors/ground robots aerial delivery." Thesis, Monterey, California. Naval Postgraduate School, 2010. http://hdl.handle.net/10945/5116.

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Approved for public release; distribution is unlimited<br>The new goal for unmanned aerial systems will be to find creative methods of keeping the cost low and still maintain effectiveness. This thesis discusses the importance of UAVs over the last few years, suggests the development of a low-cost, large UAV, and evaluates the results. We also examine the idea of a platform for deploying multiple aerial-delivery, parafoil-based systems and discuss scenarios for the improvement of the collaboration of the large UAV with the Snowflake project.

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23

Fan, Jiankun. "Optimal Path Planning and Control of Quadrotor Unmanned Aerial Vehicle for Area Coverage." University of Toledo / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1417345596.

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Sevcik, Keith Wayne Oh Paul Yu. "A hardware-in-the-loop testing facility for unmanned aerial vehicle sensor suites and control algorithms /." Philadelphia, Pa. : Drexel University, 2010. http://hdl.handle.net/1860/3262.

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Nieuwenhuisen, Matthias [Verfasser]. "Planning and Navigation in Dynamic Environments for Mobile Robots and Micro Aerial Vehicles / Matthias Nieuwenhuisen." Bonn : Universitäts- und Landesbibliothek Bonn, 2019. http://d-nb.info/1198933445/34.

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Moletta, Marco. "Path planning for autonomous aerial robots in unknown underground zones optimized for vertical tunnels exploration." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-285574.

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Robotics is revolutionizing the work in dangerous environments like mines and tunnels, making life easier and safer for the workers. The specific case considered in this thesis regards UAVs used for 3D mapping of these zones. However, the use of UAVs in underground mines can be challenging for many reasons, such as reduced visibility, no GPS localization available and limited wireless communication, challenges that can be partially solved by using au- tonomous robots. Precisely for these reasons, this work aims to contribute on this application with the implementation of an autonomous path pla

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HUSSAIN, MOAZZAM. "A Real-time Absolute Position Estimation Architecture for Autonomous Aerial Robots using Artificial Neural Networks." Doctoral thesis, Politecnico di Torino, 2014. http://hdl.handle.net/11583/2542487.

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The civil applications of Unmanned Aerial Vehicle (UAV) technology are constantly on a rise and the safety rules for the operation of UAVs in populated areas are being drafted. The UAV technology is an active area of academic research due to the challenges related to aerodynamics, tight power and payload budgets, multi-sensor information fusion, reactive real-time path planning, perception and communication bandwidth requirements. Autonomous navigation is a complex problem due to the challenges of algorithmic complexity and their real-time implementation. The challenges like long-term GPS erro

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PRIMATESTA, STEFANO. "Autonomous Navigation for Mobile Robots in Crowded Environments." Doctoral thesis, Politecnico di Torino, 2019. http://hdl.handle.net/11583/2743231.

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Six, Damien. "Conception et commande de robots parallèles volants." Thesis, Ecole centrale de Nantes, 2018. http://www.theses.fr/2018ECDN0046/document.

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La manipulation aérienne est l’un des défis de la robotique au cours de cette dernière décennie. L’un des freins au développement des manipulateurs aériens est l’autonomie limitée des drones, réduite par la charge et la consommation électrique du manipulateur embarqué. Une solution pour dépasser cette limite passe par la collaboration de plusieurs drones dans une tâche de manipulation. Cette thèse porte sur la conception et la commande d’un nouveau type de véhicule autonome aérien destiné à la manipulation. Le concept consiste à faire collaborer plusieurs drones, en particulier des quadricoptè

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Tadiello, Matteo. "Deep reinforcement learning method for autonomous exploration of unknown underground zones using aerial robots with 3D LIDAR." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-289156.

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The capability of robots to works in dangerous environments like underground mines can allow workers to work in a safer environment. In particular mapping and explore mines and tunnels can save lives and money. For this kind of missions, UAVs are often chosen, thanks to their high mobility in 3D spaces. However, to do that, the robot needs to work in a complex environment with reduced visibility and poor connections. Artificial intelligence and in particular Deep Reinforcement Learning (DRL) is becoming a more popular approach to solve this kind of problems, but the implementation of this tech

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Hayajneh, Mohammad Radi Mohammad <1987&gt. "Nonlinear State Estimation and Control of Autonomous Aerial Robots: Design and Experimental Validation of Smartphone Based Quadrotor." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amsdottorato.unibo.it/7297/1/Hayajneh_Mohammad_Radi_Mohammad_tesi.pdf.

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This work presents developments of Guidance, Navigation and Control (GNC) systems with application to autonomous Unmanned Aerial Vehicle (UAV). Precisely, this work shows the development of navigation system based on nonlinear complementary filters for position, velocity and attitude estimation using low-cost sensors. The proposed filtering method provides attitude estimates in quaternion representations and position and velocity estimates by fusing measurements from Inertial Measurement Unit (IMU), GPS, and a barometer. Least Square Method (LSM) was used in gains tuning to find the best-fitti

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Hayajneh, Mohammad Radi Mohammad <1987&gt. "Nonlinear State Estimation and Control of Autonomous Aerial Robots: Design and Experimental Validation of Smartphone Based Quadrotor." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amsdottorato.unibo.it/7297/.

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This work presents developments of Guidance, Navigation and Control (GNC) systems with application to autonomous Unmanned Aerial Vehicle (UAV). Precisely, this work shows the development of navigation system based on nonlinear complementary filters for position, velocity and attitude estimation using low-cost sensors. The proposed filtering method provides attitude estimates in quaternion representations and position and velocity estimates by fusing measurements from Inertial Measurement Unit (IMU), GPS, and a barometer. Least Square Method (LSM) was used in gains tuning to find the best-fitti

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Yu, Kevin L. "Persistent Monitoring with Energy-Limited Unmanned Aerial Vehicles Assisted by Mobile Recharging Stations." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/83493.

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We study the problem of planning a tour for an energy-limited Unmanned Aerial Vehicle (UAV) to visit a set of sites in the least amount of time. We envision scenarios where the UAV can be recharged along the way either by landing on stationary recharging stations or on Unmanned Ground Vehicles (UGVs) acting as mobile recharging stations. This leads to a new variant of the Traveling Salesperson Problem (TSP) with mobile recharging stations. We present an algorithm that finds not only the order in which to visit the sites but also when and where to land on the charging stations to recharge. Our

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Pfeil, Kevin. "An Exploration of Unmanned Aerial Vehicle Direct Manipulation Through 3D Spatial Interaction." Master's thesis, University of Central Florida, 2013. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5836.

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We present an exploration that surveys the strengths and weaknesses of various 3D spatial interaction techniques, in the context of directly manipulating an Unmanned Aerial Vehicle (UAV). Particularly, a study of touch- and device- free interfaces in this domain is provided. 3D spatial interaction can be achieved using hand-held motion control devices such as the NintendoWiimote, but computer vision systems offer a different and perhaps more natural method. In general, 3D user interfaces (3DUI) enable a user to interact with a system on a more robust and potentially more meaningful scale. We d

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Polakowski, Matthew Ryan. "An Improved Lightweight Micro Scale Vehicle Capable of Aerial and Terrestrial Locomotion." Case Western Reserve University School of Graduate Studies / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=case1334600182.

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Sampaio, Rafael Coronel Bueno. "Novel morphologies on flying robots: design for field application." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/18/18149/tde-21072016-223549/.

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Energetic limitations in low scale Unmanned Aerial Vehicles (UAVs) sometimes turns outdoor field applications impractical, which restricts the realization of several tasks that could potentially be improved or benefited from its sounding characteristics. Depending on the mission, Mini Aerial Vehicles (MAVs) energetic resources may be mostly wasted during the round trip from launching base and target point around which a given mission must be accomplished. In this sense, the initial deployment problem becomes prominent, raising new opportunities on how aerial robots may be launched/deployed. Th

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Hoffman, Bruce. "Biology and use of nibbi heteropsis flexuosa (ARACEAE) the source of an aerial root fiber product in Guyana." FIU Digital Commons, 1997. http://digitalcommons.fiu.edu/etd/2716.

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The aerial roots of Heteropsis flexuosa (Kunth) Bunting, a hemi-epiphyte, are harvested by indigenous communities in Guyana for a developing wicker furniture market. Nibbi roots have potential as a sustainably harvested product, but there is little data to guide management. I examined nibbi biology, harvest response, product yield and use at several forest sites. H. flexuosa is a relatively abundant plant and 35% of trees (≥ 10 cm dbh) in plots were hosts. Stems exhibited mean growth rates of 1-3 cm per month. Aerial roots grew a mean 156 cm per month and some reached maturity within 6 months.

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Lallement, Raphael. "Symbolic and Geometric Planning for teams of Robots and Humans." Thesis, Toulouse, INSA, 2016. http://www.theses.fr/2016ISAT0010/document.

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La planification HTN (Hierarchical Task Network, ou Réseau Hiérarchique de Tâches) est une approche très souvent utilisée pour produire des séquences de tâches servant à contrôler des systèmes intelligents. Cette thèse présente le planificateur HATP (Hierarchical Agent-base Task Planner, ou Planificateur Hiérarchique centré Agent) qui étend la planification HTN classique en enrichissant la représentation des domaines et leur sémantique afin d'être plus adaptées à la robotique, tout en offrant aussi une prise en compte des humains. Quand on souhaite générer un plan pour des robots tout en prena

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Tabatabaei, Seyed Jalal. "Yield, quality and nutritional status of tomato (Lycopersicon esculentum) fruits as affected by aerial environment and nutrition distribution in the root zone." Thesis, University of Reading, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.250733.

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Mount, James. "Condition-invariant surface-based visual localisation for multiple domains and environments." Thesis, Queensland University of Technology, 2021. https://eprints.qut.edu.au/212979/1/James_Mount_Thesis.pdf.

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Camera-based positioning systems are critical for robotic navigation, but currently rely on supplementation from other sensors to achieve the required accuracy for many applications. We present a new approach that uses the surface a robot moves relative to, such as the road, to improve the accuracy achievable and increase system deployability with an automated process for optimal parameter selection. Our techniques are demonstrated to work across a diverse range of platforms in challenging aerial and ground-based real-world environments, providing a much-needed capability on the quest towards

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Liu, Shiyu. "Decentralized Control and Estimation of a Flying Parallel Robot Interacting with the Environment." Electronic Thesis or Diss., Ecole centrale de Nantes, 2022. http://www.theses.fr/2022ECDN0056.

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La manipulation aérienne est un nouveau domaine où les drones multirotors sont équipés d'effecteurs pour la saisie, le transport et la manipulation des objets. Afin d'améliorer la capacité de charge et la manipulabilité dans l'espace 3D, un robot parallèle volant (FPR) a été proposé, dans lequel un certain nombre de drones sont utilisés pour soutenir collaborativement une architecture parallèle et passive.Dans cette thèse, les méthodes d'estimation et de contrôle considérant l'interaction avec l'environnement sont adressées et appliquées à un FPR spécifique composé d'une plateforme mobile et d

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Fernandes, Vanessa Jordão Marcato [UNESP]. "Extração de contornos de telhados de edifícios a partir da integração de imagem aérea de alta-resolução e dados LASER, utilizando campos aleatórios de Markov." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/148686.

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Submitted by VANESSA JORDÃO MARCATO FERNANDES null (vanessamarcato@yahoo.com.br) on 2017-01-30T18:15:29Z No. of bitstreams: 1 fernandes_vjm_tese.pdf: 25329126 bytes, checksum: 92c837eb39ae9af74c15ccf278cd2a84 (MD5)<br>Approved for entry into archive by LUIZA DE MENEZES ROMANETTO (luizamenezes@reitoria.unesp.br) on 2017-02-03T16:39:11Z (GMT) No. of bitstreams: 1 fernandes_vjm_dr_prud.pdf: 25329126 bytes, checksum: 92c837eb39ae9af74c15ccf278cd2a84 (MD5)<br>Made available in DSpace on 2017-02-03T16:39:11Z (GMT). No. of bitstreams: 1 fernandes_vjm_dr_prud.pdf: 25329126 bytes, checksum: 92c837e

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Troiani, Chiara. "Vision-Aided Inertial Navigation : low computational complexity algorithms with applications to Micro Aerial Vehicles." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENM021/document.

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L'estimation précise du mouvement 3D d'une caméra relativement à une scène rigideest essentielle pour tous les systèmes de navigation visuels. Aujourd'hui différentstypes de capteurs sont adoptés pour se localiser et naviguer dans des environnementsinconnus : GPS, capteurs de distance, caméras, capteurs magnétiques, centralesinertielles (IMU, Inertial Measurement Unit). Afin d'avoir une estimation robuste, lesmesures de plusieurs capteurs sont fusionnées. Même si le progrès technologiquepermet d'avoir des capteurs de plus en plus précis, et si la communauté de robotiquemobile développe algorit

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Frigeri, Renita Betero Correa. "Relação entre raiz e parte aerea de plantulas de especies arboreas tropicais sob diferentes niveis de radiação solar." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/315143.

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Orientador: Ivany Ferraz Marques Valio<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Biologia<br>Made available in DSpace on 2018-08-10T07:14:10Z (GMT). No. of bitstreams: 1 Frigeri_RenitaBeteroCorrea_D.pdf: 1952747 bytes, checksum: 56334acb7a1f414b02ad8d99c78ee37c (MD5) Previous issue date: 2007<br>Resumo: O crescimento de plântulas de espécies arbóreas tropicais, em ambientes com disponibilidade luminosa contrastante, depende de interações entre características morfológicas e fisiológicas. Dentre as várias alterações morfológicas que ocorrem em condições de baixa ir

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Clem, Garrett Stuart. "An Optimized Circulating Vector Field Obstacle Avoidance Guidance for UnmannedAerial Vehicles." Ohio University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1530874969780028.

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Delamare, Quentin. "Algorithmes d’estimation et de commande pour des quadrirotors en interaction physique avec l’environnement." Thesis, Rennes 1, 2019. http://www.theses.fr/2019REN1S099.

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Le champ de la robotique aérienne pour l’interaction physique permet aujourd’hui à un robot aérien d’appliquer un effort maîtrisé sur un objet ou sur l’environnement alors qu’il vole. En s’inspirant de l’utilisation des contacts faite en robotique humanoïde, nous proposons dans cette thèse de s’appuyer sur ces approches pour dépasser l’idée que l’environnement est une contrainte, en exploitant le contact physique avec celui-ci dans le but de réaliser de la locomotion aérienne. Cette idée est étudiée et démontrée au travers de simulations et expérimentations d’une nouvelle plateforme robotique

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Moses, Kenneth C. "Biomimicry of the Hawk Moth, Manduca sexta (L.): Forewing and Thorax Emulation for Flapping-Wing Micro Aerial Vehicle Development." Case Western Reserve University School of Graduate Studies / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=case158687503705972.

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Chakraa, Hamza. "Οptimisatiοn techniques fοr mοnitοring a high-risk industrial area by a team οf autοnοmοus mοbile rοbοts". Electronic Thesis or Diss., Normandie, 2024. http://www.theses.fr/2024NORMLH29.

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Cette thèse explore le développement et la mise en œuvre d’algorithmes d’optimisation pour la surveillance de zones industrielles à l’aide d’une équipe de robots mobiles autonomes. Le travail de recherche se concentre sur l’allocation de tâches multi-robots (MRTA), où un plan de mission quasi-optimal doit être généré. Un nouveau modèle prenant en compte des robots et des tâches hétérogènes est proposé, utilisant des algorithmes génétiques (GA) et une méthode de recherche locale 2-Opt pour résoudre le problème. La thèse intègre également des stratégies d’évitement des collisions, qui deviennent

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Alsalam, Bilal. "A small autonomous UAV for detection and action in precision agriculture." Thesis, Queensland University of Technology, 2017. https://eprints.qut.edu.au/104318/1/Bilal%20Hazim%20Younus_Alsalam_Thesis.pdf.

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This thesis develops a framework for Unmanned Aerial Vehicles (UAVs) with on-board computer for the purpose of detection and action in agriculture and other Remote Sensing tasks. This system has potential applications in the field of precision agriculture such as, invasive weed detection and eradication. The method is based on vision-based-detection and navigation that autonomously detects a target (e.g. weed) and takes action, such as spraying herbicide. The system was tested in simulation and in outdoors experiments at a farm in south-east Queensland, Australia. The results of this system ha

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Moses, Kenneth C. "A Durable Terrestrial Drive Train for a Small Air Vehicle." Cleveland, Ohio : Case Western Reserve University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=case1270233578.

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Thesis (Master of Sciences (Engineering))--Case Western Reserve University, 2010<br>Department of EMC - Mechanical Engineering Title from PDF (viewed on 2010-05-25) Includes abstract Includes bibliographical references and appendices Available online via the OhioLINK ETD Center

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