The Mechanics and Control of Undulatory Robotic Locomotion
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Cristian Bota 3Socf5x9eyz6
Cristian Bota https://www.facebook.com/index.php?lh=Ac- _3sOcf5X9eyz6 Das Imperium Talent Agency Berlin (D.I.T.A.) Georg Georgi Phone: +49 151 6195 7519 Email: [email protected] Website: www.dasimperium.com © b Information Acting age 25 - 35 years Nationality Romanian Year of birth 1992 (29 years) Languages English: fluent Height (cm) 180 Romanian: native-language Weight (in kg) 68 French: medium Eye color green Dialects Resita dialect: only when Hair color Brown required Hair length Medium English: only when required Stature athletic-muscular Accents Romanian: only when required Place of residence Bucharest Instruments Piano: professional Cities I could work in Europe, Asia, America Sport Acrobatics, Aerial yoga, Aerobics, Aikido, Alpine skiing, American football, Archery, Artistic cycling, Artistic gymnastics, Athletics, Backpacking, Badminton, Ballet, Baseball, Basketball, Beach volleyball, Biathlon, Billiards, BMX, Body building, Bodyboarding, Bouldering, Bowling, Boxing, Bujinkan, Bungee, Bycicle racing, Canoe/Kayak, Capoeira, Caster board, Cheerleading, Chinese martial arts, Climb, Cricket, Cross-country skiing, Crossbow shooting, CrossFit, Curling, Dancesport, Darts, Decathlon, Discus throw, Diving, Diving (apnea), Diving (bottle), Dressage, Eskrima/Kali, Fencing (sports), Fencing (stage), Figure skating, Finswimming, Fishing, Fistball, Fitness, Floor Exercise, Fly fishing, Free Climbing, Frisbee, Gliding, Golf, Gymnastics, Gymnastics, Hammer throw, Handball, Hang- Vita Cristian Bota by www.castupload.com — As of: 2021-05-10 -
Analyzing Pterosaur Ontogeny and Sexual Dimorphism with Multivariate Allometry Erick Charles Anderson [email protected]
Marshall University Marshall Digital Scholar Theses, Dissertations and Capstones 2016 Analyzing Pterosaur Ontogeny and Sexual Dimorphism with Multivariate Allometry Erick Charles Anderson [email protected] Follow this and additional works at: http://mds.marshall.edu/etd Part of the Animal Sciences Commons, Ecology and Evolutionary Biology Commons, and the Paleontology Commons Recommended Citation Anderson, Erick Charles, "Analyzing Pterosaur Ontogeny and Sexual Dimorphism with Multivariate Allometry" (2016). Theses, Dissertations and Capstones. 1031. http://mds.marshall.edu/etd/1031 This Thesis is brought to you for free and open access by Marshall Digital Scholar. It has been accepted for inclusion in Theses, Dissertations and Capstones by an authorized administrator of Marshall Digital Scholar. For more information, please contact [email protected], [email protected]. ANALYZING PTEROSAUR ONTOGENY AND SEXUAL DIMORPHISM WITH MULTIVARIATE ALLOMETRY A thesis submitted to the Graduate College of Marshall University In partial fulfillment of the requirements for the degree of Master of Science in Biological Sciences by Erick Charles Anderson Approved by Dr. Frank R. O’Keefe, Committee Chairperson Dr. Suzanne Strait Dr. Andy Grass Marshall University May 2016 i ii ii Erick Charles Anderson ALL RIGHTS RESERVED iii Acknowledgments I would like to thank Dr. F. Robin O’Keefe for his guidance and advice during my three years at Marshall University. His past research and experience with reptile evolution made this research possible. I would also like to thank Dr. Andy Grass for his advice during the course of the research. I would like to thank my fellow graduate students Donald Morgan and Tiffany Aeling for their support, encouragement, and advice in the lab and bar during our two years working together. -
Running Birds from Quail to Ostrich Prioritise Leg Safety and Economy
© 2014. Published by The Company of Biologists Ltd | The Journal of Experimental Biology (2014) 217, 3786-3796 doi:10.1242/jeb.102640 RESEARCH ARTICLE Don’t break a leg: running birds from quail to ostrich prioritise leg safety and economy on uneven terrain Aleksandra V. Birn-Jeffery1,*,‡, Christian M. Hubicki2,‡, Yvonne Blum1, Daniel Renjewski2, Jonathan W. Hurst2 and Monica A. Daley1,§ ABSTRACT Daley, 2012; Dial, 2003; Jindrich et al., 2007; Rubenson et al., Cursorial ground birds are paragons of bipedal running that span a 2004). These athletes span the broadest body mass range among 500-fold mass range from quail to ostrich. Here we investigate the extant bipeds, over 500-fold from quail to ostrich. Birds thus provide task-level control priorities of cursorial birds by analysing how they a natural animal model for understanding the functional demands of negotiate single-step obstacles that create a conflict between body striding bipedalism and how these demands change with body size stability (attenuating deviations in body motion) and consistent leg (Gatesy and Biewener, 1991; Hutchinson and Garcia, 2002; Roberts force–length dynamics (for economy and leg safety). We also test the et al., 1998a). hypothesis that control priorities shift between body stability and leg Here, we ask two questions fundamental to locomotor behaviour: safety with increasing body size, reflecting use of active control to (1) what are the task-level leg control priorities of running animals; overcome size-related challenges. Weight-support demands lead to and (2) how do these priorities vary with terrain and body size? a shift towards straighter legs and stiffer steady gait with increasing Running animals must control their legs to balance numerous, body size, but it remains unknown whether non-steady locomotor sometimes conflicting, task-level demands including minimising priorities diverge with size. -
Port-Based Modeling and Control for Efficient Bipedal Walking Robots
Port-Based Modeling and Control for Efficient Bipedal Walking Robots Vincent Duindam The research described in this thesis has been conducted at the Department of Electrical Engineering, Math, and Computer Science at the University of Twente, and has been financially supported by the European Commission through the project Geometric Network Modeling and Control of Complex Physical Systems (GeoPlex) with reference code IST-2001-34166. The research reported in this thesis is part of the research program of the Dutch Institute of Systems and Control (DISC). The author has succesfully completed the educational program of the Graduate School DISC. ISBN 90-365-2318-4 The cover picture of this thesis is based on the work ’Ascending and Descending’ by Dutch graphic artist M.C. Escher (1898–1972), who, in turn, was inspired by an article by Penrose & Penrose (1958). Copyright c 2006 by V. Duindam, Enschede, The Netherlands No part of this work may be reproduced by print, photocopy, or any other means without the permission in writing from the publisher. Printed by PrintPartners Ipskamp, Enschede, The Netherlands PORT-BASED MODELING AND CONTROL FOR EFFICIENT BIPEDAL WALKING ROBOTS PROEFSCHRIFT ter verkrijging van de graad van doctor aan de Universiteit Twente, op gezag van de rector magnificus, prof. dr. W.H.M. Zijm, volgens besluit van het College voor Promoties in het openbaar te verdedigen op vrijdag 3 maart 2006 om 13.15 uur door Vincent Duindam geboren op 21 oktober 1977 te Leiderdorp, Nederland Dit proefschrift is goedgekeurd door: Prof. dr. ir. S. Stramigioli, promotor Prof. dr. ir. J. van Amerongen, promotor Samenvatting Lopende robots zijn complexe systemen, vanwege hun niet-lineaire dynamica en interactiekrachten met de grond. -
Nitte University Journal March 2013.Cdr
Published online: 2020-04-29 NUJHS Vol. 3, No.1, March 2013, ISSN 2249-7110 Nitte University Journal of Health Science Short Communication HOPPING IN BIRDS: IS THE CHOICE OF GAIT INFLUENCED BY CERVICAL MOBILITY AND FIELD OF VISION ? Arunachalam Kumar Professor & Head, Department of Anatomy, K.S. Hegde Medical Academy, Nitte University, Mangalore - 575 018, India. Correspondence: Arunachalam Kumar E-mail: [email protected] Abstract : One of the more intriguing questions in avian locomotion is why some birds, when on ground, choose to hop while others prefer walking. Biped gait is common to birds as well as the most evolved among mammals, man. Observations made show that, choice of gait in birds is determined by a remote factor – the range and extent of neck mobility. The wider the gamut of cervical mobility, the wider is the 'field of vision' available. Cervical movement capability is perhaps the single most deterministic factor in the bird's choice of terrestrial gait. Keywords: bipedal gait, avifauna, visual range, cervical vertebrae, hopping. Introduction : Observations & Discussion : One of the earliest bipeds to survive to modern era, are Observations on biped mobility on birds and their birds. Birds are unique in that many species among them locomotion reveal that, generally smaller birds hop while have capability of flying in air, walking on land and larger ones stride, strut or walk. Many theories and swimming in water. The talent to exploit all three mediums, hypotheses float around the word of ornithology and air, land and water for mobility makes birds occupy special kinematics on the how and why of avian locomotion. -
Diccionario De Anglicismos Y Otros Extranjerismos
DICCIONARIO DE ANGLICISMOS Y OTROS EXTRANJERISMOS AUTOR DÁMASO SUÁREZ IGLESIAS (REGISTRO DE LA PROPIEDAD INTELECTUAL LO-133/2019) 1 A ABATTOIR. Galicismo por matadero, degolladero. ABERDEEN TERRIER. Anglicismo por terrier escocés (cierto perro). ABOCATERO (AVOCAT). Galicismo por aguacate . ABSENTA (ABSAINTE). Galicismo por ajenjo y absintio . Tiene mucho uso. ABSTRACT. Anglicismo por resumen , sumario , extracto o sinopsis. ACADEMIC FREEDOM. Anglicismo por libertad de cátedra . ACCOUNT. Anglicismo por cuenta. ACCOUNTANT. Anglicismo por contador (persona que lleva la contaduría). ACCOUNTING. Anglicismo por contaduría , teneduría de libros . ACCRUED INTEREST. Anglicismo por intereses acumulados, intereses devengados, intereses de demora . ACE. Anglicismo por tanto de saque , tanto directo de saque, punto directo (en el ámbito del tenis). También significa hoyo en uno (en el ámbito del golf). ACID TEST. Anglicismo por prueba de fuego , piedra de toque y coeficiente de liquidez inmediata . ACTA por LEY. Acta en español designa la relación escrita que recoge los acuerdos y deliberaciones de alguna junta; también se llama así a la relación de la vida de algún mártir. No significa decreto , ley o convenio . Quienes le dan tales sentidos lo hacen por influencia del idioma inglés. ACTA DE GUERRA (WAR ACT). Anglicismo por ley de poderes de guerra . ACTION MAN. Anglicismo por hombre forzudo , hombre musculoso . ACTION PAINTING. Anglicismo por pintura de acción , pintura gestual . ACTIVITY-BASED COSTING. Anglicismo por contaduría por actividades, costos por actividades . ACULOTAR (CULOTTER). Galicismo por ennegrecer (una pipa o boquilla. ADAGIETTO. Vocablo italiano con que se designa cierto movimiento musical que debe interpretarse algo más rápido que el adagio. Su hispanización es adagieto . AD BLOCKER. -
NORTHAMPTON Cmtre Forchild-Mand Youth
a University College E NORTHAMPTON Cmtre forchild-mand Youth PROJECTDATA USERGUIDE . ,’, . ., ,. ,. Exploring the fourth environment: Young people’s use of place and views on their environment Introduction The purpose of this guide is to individually outline each of the study areas which feature in the ‘Exploring the fourth environment: young people’s use of place and views on their local environment’ project. The project was based in three contrasting types of locality across Northamptonshire and the work was carried out between October 1996 and September 1999. The guide is set out in the following sections: Section 1: Project Aims, Objectives and Methods of Research Page 1 - 5 -Includes a project publications list Section 2: Data Collection Summary Tables Page 6 - 9 -This section provides a detailed breakdown of exactly where and how the information was collected, sample sizes and/or data availability. Note that not all study areas were used in all aspects of the project work. Section 3: Database and Transcription File Matrices Page 10 - 14 -This section provides a detailed breakdown of all the relevant files/file types that are associated with the analysis of the data. There are two types of file that are listed. Database files (used to analyse the collective results of the individual questionnaire based surveys) are listed as ***.SAV files. These files are useable with SPSS (6.1 for Windows or above). Text files (used for the transcription of interviews) are listed as ***.DOC files. They can be accessed using MS Word 6.0 for Windows or above. As with the tables in Section 2, the files are listed by location and by role that that respective locations play in each of the individual surveys. -
The First Dsungaripterid Pterosaur from the Kimmeridgian of Germany and the Biomechanics of Pterosaur Long Bones
The first dsungaripterid pterosaur from the Kimmeridgian of Germany and the biomechanics of pterosaur long bones MICHAEL FASTNACHT Fastnacht, M. 2005. The first dsungaripterid pterosaur from the Kimmeridgian of Germany and the biomechanics of pterosaur long bones. Acta Palaeontologica Polonica 50 (2): 273–288. A partial vertebral column, pelvis and femora of a newly discovered pterosaur are described. The remains from the Upper Jurassic (Kimmeridgian) of Oker (northern Germany) can be identified as belonging to the Dsungaripteridae because the cross−sections of the bones have relatively thick walls. The close resemblance in morphology to the Lower Cretaceous Dsungaripterus allows identification of the specimen as the first and oldest record of dsungaripterids in Central Europe. Fur− thermore, it is the oldest certain record of a dsungaripterid pterosaur world wide. The biomechanical characteristics of the dsungaripterid long bone construction shows that it has less resistance against bending and torsion than in non−dsungari− pteroid pterosaurs, but has greater strength against compression and local buckling. This supports former suggestions that dsungaripterids inhabited continental areas that required an active way of life including frequent take−off and landing phases. The reconstruction of the lever arms of the pelvic musculature and the mobility of the femur indicates a quadrupedal terrestrial locomotion. Key words: Reptilia, Pterosauria, Dsungaripteridae, locomotion, biomechanics, Jurassic, Germany. Michael Fastnacht [fastnach@uni−mainz.de], Palaeontologie, Institut für Geowissenschaften, Johannes Gutenberg− Universität, D−55099 Mainz, Germany. Introduction described from this site (Laven 2001; Mateus et al. 2004; Sander et al. 2004). This and further dinosaur material has In recent years, the northern part of Germany has yielded an been collected by members of the “Verein zur Förderung der increasing number of Upper Jurassic/Lower Cretaceous niedersächsischen Paläontologie e.V.”, who regularly collect archosaurian remains. -
FORELIMB LAMENESS: the GREAT IMPERSONATOR Juliette Hart, DVM, MS, CCRT, CVA Cornell University Veterinary Specialists
FORELIMB LAMENESS: THE GREAT IMPERSONATOR Juliette Hart, DVM, MS, CCRT, CVA Cornell University Veterinary Specialists. Stamford, CT Diagnosis of forelimb lameness in canine patients can often be a labor-intensive and time- consuming process, often with multiple factors being taken into account, regardless of the actual diagnosis. The dog’s age, activity level, co-morbidities, job and environment can be key players. Close examination of the dog in motion (in hospital and at home) can be helpful when determining type and degree of lameness, and may frequently assist the clinician in determining next appropriate diagnostic tests and treatment plans. This lecture will focus on differentials associated with forelimb lameness in dogs, current diagnostic tests and potential treatments available, and finally prognoses and outcomes for specific types of shoulder forelimb lameness in dogs. Lameness Evaluation The forelimb skeleton consists of the thoracic or pectoral girdle and the bones of the forelimb. The canine scapula itself is positioned close to the sagittal plane, and the humeral head is less rounded (as compared to the human head) to assist with weight bearing. The radius takes the majority of weight-bearing in the antebrachium. And, although small, the many sesamoid bones in the carpus/paw allow for biomechanically advantageous alignment of angles of insertion of tendons at their attachments.¹ While there can be tremendous variation in the sizes of the bones themselves comparing dog to dog, the literature have reported a roughly 60% body weight distribution in the thoracic limbs.² As a clinician evaluates a patient, lameness is a key element of that examination. -
Alexander 2013 Principles-Of-Animal-Locomotion.Pdf
.................................................... Principles of Animal Locomotion Principles of Animal Locomotion ..................................................... R. McNeill Alexander PRINCETON UNIVERSITY PRESS PRINCETON AND OXFORD Copyright © 2003 by Princeton University Press Published by Princeton University Press, 41 William Street, Princeton, New Jersey 08540 In the United Kingdom: Princeton University Press, 3 Market Place, Woodstock, Oxfordshire OX20 1SY All Rights Reserved Second printing, and first paperback printing, 2006 Paperback ISBN-13: 978-0-691-12634-0 Paperback ISBN-10: 0-691-12634-8 The Library of Congress has cataloged the cloth edition of this book as follows Alexander, R. McNeill. Principles of animal locomotion / R. McNeill Alexander. p. cm. Includes bibliographical references (p. ). ISBN 0-691-08678-8 (alk. paper) 1. Animal locomotion. I. Title. QP301.A2963 2002 591.47′9—dc21 2002016904 British Library Cataloging-in-Publication Data is available This book has been composed in Galliard and Bulmer Printed on acid-free paper. ∞ pup.princeton.edu Printed in the United States of America 1098765432 Contents ............................................................... PREFACE ix Chapter 1. The Best Way to Travel 1 1.1. Fitness 1 1.2. Speed 2 1.3. Acceleration and Maneuverability 2 1.4. Endurance 4 1.5. Economy of Energy 7 1.6. Stability 8 1.7. Compromises 9 1.8. Constraints 9 1.9. Optimization Theory 10 1.10. Gaits 12 Chapter 2. Muscle, the Motor 15 2.1. How Muscles Exert Force 15 2.2. Shortening and Lengthening Muscle 22 2.3. Power Output of Muscles 26 2.4. Pennation Patterns and Moment Arms 28 2.5. Power Consumption 31 2.6. Some Other Types of Muscle 34 Chapter 3. -
Biomechanics of Terrestrial Locomotion: Asymmetric Octopedal and Quadrupedal Gaits
SCUOLA DI DOTTORATO IN SCIENZE MORFOLOGICHE, FISIOLOGICHE E DELLO SPORT DIPARTIMENTO DI FISIOLOGIA UMANA DOTTORATO DI RICERCA IN FISIOLOGIA CICLO XXIV Biomechanics of terrestrial locomotion: asymmetric octopedal and quadrupedal gaits SETTORE SCIENTIFICO DISCIPLINARE BIO-09 PhD Student: Dott. Carlo M. Biancardi Matricola: R08161 Tutor: Prof. Alberto E. Minetti Coordinatore: Prof. Paolo Cavallari Anno Accademico 2010-2011 Table of Contents Abstract...................................................................................................... 5 Introduction ...............................................................................................8 Foreword.................................................................................................................. 8 Objectives .................................................................................................................8 Thesis structure........................................................................................................ 8 Terrestrial legged locomotion ..................................................................9 Introduction .............................................................................................................9 Energetics and mechanics of terrestrial legged locomotion ................................10 Limbs mechanics ..........................................................................................................10 Size differences .............................................................................................................14 -
Body Form and Gait in Terrestrial Vertebrates1
THE OHIO JOURNAL OF SCIENCE Vol. 72 JULY, 1972 No. 4 BODY FORM AND GAIT IN TERRESTRIAL VERTEBRATES1 WARREN F. WALKER, JR. Department of Biology, Oberlin College, Oberlin, Ohio 44074 One appeal of pure research is that in answering certain questions, new problems arise, and one is led on and on into a progressively deeper study of a problem. Certain aspects of terrestrial locomotion can be viewed as an example of how research in this area has shifted from description to quantitative analysis and on to a consideration of the interrelationships between form and function. Much research in anatomy today is at the functional level, that is, it is a search for an explanation of structure in terms of the functions the structures are performing, and the intermeshing of certain structures and their functions with those of other parts of the organism. My research animal has been the Central Painted Turtle (Chrysemys picta marginata). In common with other terrestrial ectotherms, turtles carry their body close to the ground when they walk, but turtles are unique in being encased in a protective shell. Corollaries of the shell are a short, broad, and rigid trunk, and these features have important locomotor consequences. Locomotion was studied first not in turtles but in mammals. Careful analyses of locomotion can be traced back to Eadweard Muybridge's study of horse gaits, which he began in 1872 (Muybridge, 1887). Muybridge was a photographer who, in a period preceding cine photography, devised an ingenious battery of 24 still cameras that could be triggered in quick succession to produce a series of still pictures indicating the sequence of limb movements (fig.