13 research outputs found

    Climbing and Walking Robots

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    Nowadays robotics is one of the most dynamic fields of scientific researches. The shift of robotics researches from manufacturing to services applications is clear. During the last decades interest in studying climbing and walking robots has been increased. This increasing interest has been in many areas that most important ones of them are: mechanics, electronics, medical engineering, cybernetics, controls, and computers. Today’s climbing and walking robots are a combination of manipulative, perceptive, communicative, and cognitive abilities and they are capable of performing many tasks in industrial and non- industrial environments. Surveillance, planetary exploration, emergence rescue operations, reconnaissance, petrochemical applications, construction, entertainment, personal services, intervention in severe environments, transportation, medical and etc are some applications from a very diverse application fields of climbing and walking robots. By great progress in this area of robotics it is anticipated that next generation climbing and walking robots will enhance lives and will change the way the human works, thinks and makes decisions. This book presents the state of the art achievments, recent developments, applications and future challenges of climbing and walking robots. These are presented in 24 chapters by authors throughtot the world The book serves as a reference especially for the researchers who are interested in mobile robots. It also is useful for industrial engineers and graduate students in advanced study

    Bio-Inspired Robotics

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    Modern robotic technologies have enabled robots to operate in a variety of unstructured and dynamically-changing environments, in addition to traditional structured environments. Robots have, thus, become an important element in our everyday lives. One key approach to develop such intelligent and autonomous robots is to draw inspiration from biological systems. Biological structure, mechanisms, and underlying principles have the potential to provide new ideas to support the improvement of conventional robotic designs and control. Such biological principles usually originate from animal or even plant models, for robots, which can sense, think, walk, swim, crawl, jump or even fly. Thus, it is believed that these bio-inspired methods are becoming increasingly important in the face of complex applications. Bio-inspired robotics is leading to the study of innovative structures and computing with sensory–motor coordination and learning to achieve intelligence, flexibility, stability, and adaptation for emergent robotic applications, such as manipulation, learning, and control. This Special Issue invites original papers of innovative ideas and concepts, new discoveries and improvements, and novel applications and business models relevant to the selected topics of ``Bio-Inspired Robotics''. Bio-Inspired Robotics is a broad topic and an ongoing expanding field. This Special Issue collates 30 papers that address some of the important challenges and opportunities in this broad and expanding field

    Proceedings of the ECCOMAS Thematic Conference on Multibody Dynamics 2015

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    This volume contains the full papers accepted for presentation at the ECCOMAS Thematic Conference on Multibody Dynamics 2015 held in the Barcelona School of Industrial Engineering, Universitat Politècnica de Catalunya, on June 29 - July 2, 2015. The ECCOMAS Thematic Conference on Multibody Dynamics is an international meeting held once every two years in a European country. Continuing the very successful series of past conferences that have been organized in Lisbon (2003), Madrid (2005), Milan (2007), Warsaw (2009), Brussels (2011) and Zagreb (2013); this edition will once again serve as a meeting point for the international researchers, scientists and experts from academia, research laboratories and industry working in the area of multibody dynamics. Applications are related to many fields of contemporary engineering, such as vehicle and railway systems, aeronautical and space vehicles, robotic manipulators, mechatronic and autonomous systems, smart structures, biomechanical systems and nanotechnologies. The topics of the conference include, but are not restricted to: ● Formulations and Numerical Methods ● Efficient Methods and Real-Time Applications ● Flexible Multibody Dynamics ● Contact Dynamics and Constraints ● Multiphysics and Coupled Problems ● Control and Optimization ● Software Development and Computer Technology ● Aerospace and Maritime Applications ● Biomechanics ● Railroad Vehicle Dynamics ● Road Vehicle Dynamics ● Robotics ● Benchmark ProblemsPostprint (published version

    Sports Performance and Health

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    Sports performance is primarily associated with elite sport, however, recreational athletes are increasingly attempting to emulate elite athletes. Performance optimization is distinctly multidisciplinary. Optimized training concepts and the use of state-of-the-art technologies are crucial for improving performance. However, sports performance enhancement is in constant conflict with the protection of athletes’ health. Notwithstanding the known positive effects of physical activity on health, the prevention and management of sports injuries remain major challenges to be addressed. Accordingly, this Special Issue on "Sports Performance and Health" consists of 17 original research papers, one review paper, and one commentary, and covers a wide range of topics related to fatigue, movement asymmetries, optimization of sports performance by training, technique, and/or tactics enhancements, prevention and management of sports injuries, optimization of sports equipment to increase performance and/or decrease the risk of injury, and innovations for sports performance, health, and load monitoring. As this Special Issue offers several new insights and multidisciplinary perspectives on sports performance and health, readers from around the world who work in these areas are expected to benefit from this Special Issue collection

    Multibody dynamics 2015

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    This volume contains the full papers accepted for presentation at the ECCOMAS Thematic Conference on Multibody Dynamics 2015 held in the Barcelona School of Industrial Engineering, Universitat Politècnica de Catalunya, on June 29 - July 2, 2015. The ECCOMAS Thematic Conference on Multibody Dynamics is an international meeting held once every two years in a European country. Continuing the very successful series of past conferences that have been organized in Lisbon (2003), Madrid (2005), Milan (2007), Warsaw (2009), Brussels (2011) and Zagreb (2013); this edition will once again serve as a meeting point for the international researchers, scientists and experts from academia, research laboratories and industry working in the area of multibody dynamics. Applications are related to many fields of contemporary engineering, such as vehicle and railway systems, aeronautical and space vehicles, robotic manipulators, mechatronic and autonomous systems, smart structures, biomechanical systems and nanotechnologies. The topics of the conference include, but are not restricted to: Formulations and Numerical Methods, Efficient Methods and Real-Time Applications, Flexible Multibody Dynamics, Contact Dynamics and Constraints, Multiphysics and Coupled Problems, Control and Optimization, Software Development and Computer Technology, Aerospace and Maritime Applications, Biomechanics, Railroad Vehicle Dynamics, Road Vehicle Dynamics, Robotics, Benchmark Problems. The conference is organized by the Department of Mechanical Engineering of the Universitat Politècnica de Catalunya (UPC) in Barcelona. The organizers would like to thank the authors for submitting their contributions, the keynote lecturers for accepting the invitation and for the quality of their talks, the awards and scientific committees for their support to the organization of the conference, and finally the topic organizers for reviewing all extended abstracts and selecting the awards nominees.Postprint (published version

    The development of ergonomics design criteria for powered human movement systems

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    This research developed from a concept for a powered exoskeletal system for manipulating a person's posture to provide them with physical sensations as though taking part in an activity in which they otherwise would not be able to participate. The aim for this research was to develop a set of criteria relating to this physical manipulation, which could be used, in conjunction with visual and audio stimuli, to govern the design of a commercial personal entertainment simulator for use by members of the public. Investigations revealed that there is currently no existing system comparable to this proposed simulator. Therefore, various fields were researched, including robotics, physiotherapy, virtual reality, haptics and existing simulators; with a view to combining elements of these fields for the development of a manipulation system appropriate to public entertainment use. A survey was conducted on members of the public to investigate their experiences of sports, theme park rides and virtual reality; their personalities; and their opinions of the proposed simulator. This survey indicated that the likely users of such a system would be sensation-seeking, physically active people. The activities which generated the most interest were those which were hazardous, difficult, or required long distance travel. To be consistent with these findings, practical trials were undertaken using the sport of skiing as the context for conducting practical investigations into postural manipulation. Existing and original studies of the movements involved in skiing revealed the complexity of this activity, and the variety of techniques employed by different skiers. These findings, combined with the survey data and earlier investigations, led to the development of a versatile prototype system which could accommodate this variability and impose customised skiing movements on volunteers. Volunteer trials using this prototype demonstrated that members of the public were willing to have their postures controlled by external forces, and although some participants were apprehensive at first, they all reported the experience to be enjoyable. Tests with different applied movements showed that users were comfortable with manipulations at speeds and accelerations up to and exceeding those employed in skiing for real. The principal criteria concluded from these trials were that it is possible to safely and comfortably manipulate human postures through external technology, and that this external control can be used to provide an enjoyable and exhilarating entertainment experience.EThOS - Electronic Theses Online ServiceGBUnited Kingdo

    Proceedings of the 2018 Canadian Society for Mechanical Engineering (CSME) International Congress

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    Published proceedings of the 2018 Canadian Society for Mechanical Engineering (CSME) International Congress, hosted by York University, 27-30 May 2018

    Preserving Jewellery Created from Plastics and Rubber: Application of Materials and Interpretation of Objects

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    The adoption of plastics and rubber to artist jewellers’ repertoire of materials in the late 1960s marks a significant and permanent alteration to the artist jewellery discipline. Since this time the physical and conceptual possibilities of plastics have fuelled and enabled developments in this artistic field. Since the early 1970s museums and private collections have continually acquired artist jewellery created from plastic. Some of these artworks are now exhibiting change or deterioration. Discussion and debate regarding their preservation is a pressing need. To date, whilst there has been recent research into the deterioration of plastic materials found in cultural heritage, almost no published work or debate has addressed artist jewellery specifically. This research positions plastic artist jewellery within the expanding discipline of modern materials conservation and aims to raise awareness of preserving plastic jewellery artworks. The prevalent plastics in use for artist jewellery, their properties and importantly application, to create artistic intent, are identified. Current attitudes of custodians and artists towards preservation, which has a bearing on the past and future prospects of the artworks, are analysed. Despite not having articulated their opinion previously, many jewellery artists have considered the long term prospects of their work as part of their artistic practice. As change and deterioration of the artworks is inevitable the impact of change to jewellery artworks is considered. Understanding how material properties are applied to create intent, as identified, is essential to comprehend meaning and any alterations as a result of change. Finally, having deliberately drawn artists into the preservation debate the nature of their input is considered. Should jewellery artists intervene in their own work when treatment is required? The research is from a humanities rather than scientific perspective and is concerned with objects and their interpretation in the context of preservation. The artworks are the starting point and their context as jewellery objects is the primary concern. Oral testimony of artists is also crucial to draw the artists into the preservation process as stakeholders and because jewellery artists are hitherto unrecorded in this context. What is demonstrated throughout the thesis is that the wearable function of jewellery has a bearing on their perception and interpretation as objects

    PRELIMINARY FINDINGS OF A POTENZIATED PIEZOSURGERGICAL DEVICE AT THE RABBIT SKULL

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    The number of available ultrasonic osteotomes has remarkably increased. In vitro and in vivo studies have revealed differences between conventional osteotomes, such as rotating or sawing devices, and ultrasound-supported osteotomes (Piezosurgery®) regarding the micromorphology and roughness values of osteotomized bone surfaces. Objective: the present study compares the micro-morphologies and roughness values of osteotomized bone surfaces after the application of rotating and sawing devices, Piezosurgery Medical® and Piezosurgery Medical New Generation Powerful Handpiece. Methods: Fresh, standard-sized bony samples were taken from a rabbit skull using the following osteotomes: rotating and sawing devices, Piezosurgery Medical® and a Piezosurgery Medical New Generation Powerful Handpiece. The required duration of time for each osteotomy was recorded. Micromorphologies and roughness values to characterize the bone surfaces following the different osteotomy methods were described. The prepared surfaces were examined via light microscopy, environmental surface electron microscopy (ESEM), transmission electron microscopy (TEM), confocal laser scanning microscopy (CLSM) and atomic force microscopy. The selective cutting of mineralized tissues while preserving adjacent soft tissue (dura mater and nervous tissue) was studied. Bone necrosis of the osteotomy sites and the vitality of the osteocytes near the sectional plane were investigated, as well as the proportion of apoptosis or cell degeneration. Results and Conclusions: The potential positive effects on bone healing and reossification associated with different devices were evaluated and the comparative analysis among the different devices used was performed, in order to determine the best osteotomes to be employed during cranio-facial surgery

    Compact Anthology of World Literature II: Volumes 4, 5, and 6

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    The Compact Anthology of World Literature, Parts 4, 5, and 6 is designed as an e-book to be accessible on a variety of devices: smart phone, tablet, e-reader, laptop, or desktop computer. Students have reported ease of accessibility and readability on all these devices. To access the ePub text on a laptop, desktop, or tablet, you will need to download a program through which you can read the text. We recommend Readium, an application available through Google. If you plan to read the text on an Android device, you will need to download an application called Lithium from the App Store. On an iPhone, the text will open in iBooks. Affordable Learning Georgia has also converted the .epub files to PDF. Because .epub does not easily convert to other formats, the left margin of the .pdf is very narrow. ALG recommends using the .epub version. Although the text is designed to look like an actual book, the Table of Contents is composed of hyperlinks that will take you to each introductory section and then to each text. The three parts of the text are organized into the following units: Part 4—The Seventeenth and Eighteenth Centuries Unit I: The Age of Reason Unit II: The Near East and Asia Part 5—The Long Nineteenth Century Unit I Romanticism Unit II Realism Part 6—The Twentieth Century and Contemporary Literature Unit I Modernism Unit II Postcolonial Literature Unit III Contemporary Literature Texts from a variety of genres and cultures are included in each unit. Additionally, each selection or collection includes a brief introduction about the author and text(s), and each includes 3 – 5 discussion questions. Texts in the public domain--those published or translated before 1923--are replicated here. Texts published or translated after 1923 are not yet available in the public domain. In those cases, we have provided a link to a stable site that includes the text. Thus, in Part 6, most of the texts are accessible in the form of links to outside sites. In every case, we have attempted to connect to the most stable links available. The following texts have been prepared with the assistance of the University of North Georgia Press in its role as Affordable Learning Georgia\u27s Partner Press. Affordable Learning Georgia partners with the University of North Georgia Press to assist grantees with copyright clearance, peer review, production and design, and other tasks required to produce quality Open Educational Resources (OER). The University Press is a peer-reviewed, academic press. Its mission is to produce scholarly work that contributes to the fields of innovative teaching, textbooks, and Open Educational Resources. Affordable Learning Georgia Textbook Transformation Grant funds may be used for services provided by the Press. To determine how the University Press can assist ALG grantees or anyone interested in developing OER with ALG, the University Press will provide advance free consultations. Please contact the Press at 706-864-1556 or [email protected]. “Textbook Transformation Grants” from Affordable Learning Georgia Accessible files with optical character recognition (OCR) and auto-tagging provided by the Center for Inclusive Design and Innovation.https://oer.galileo.usg.edu/english-textbooks/1018/thumbnail.jp
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