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Author: Yvonne Chen
Publisher: Cuvillier Verlag
ISBN: 3736980108
Category : Technology & Engineering
Languages : en
Pages : 286
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Book Description
The knowledge of behavior of liquids with free surfaces to their surrounding gaseous phase in compensated gravity is essential to the development of tank systems for spacecrafts. In microgravity, the liquid behavior is dominated by capillary forces, which are used to position and redistribute liquid propellant in a desired way for the mission. The body forces occurring due to residual accelerations, which can be caused by spin during the ballistic flight phases, force the liquid to reorient towards a new equilibrium state of the free surface. Due to spin the liquid is driven away from the tank outlet and located along tank walls in partially filled tanks. To assure enough liquid fuel over the tank outlet, so-called Propellant Management Devices (PMD’s), are employed. A PMD is a static, usually metal structure, which either provides a passage way for a liquid in microgravity or stores a certain amount of liquid at a desired location. Some PMD’s are designed to be refillable in periods of microgravity due to openings in the outer housing or by a housing composed of perforated metallic sheets. These reservoirs are refilled in periods of compensated gravity in order to provide the required amount of liquid fuel for attitude control or other maneuverings. Relatively large disturbances, such as lateral accelerations and spin, can drive the liquid fuel out of the reservoir, resulting in malfunction of the device. During spilling, gas enters the device such that only a residual amount of liquid propellant can be kept in the reservoir. Moreover, the connection to the bulk liquid in the tank may be interrupted such that refilling of the reservoir is disrupted. Hence, a PMD with two parallel disks forming the inlet and a venting tube at the topmost point of the outer housing shall be designed such that its refillable structure is only filled with liquid without any gas or vapor being easily trapped during operations.
Author: Yvonne Chen
Publisher: Cuvillier Verlag
ISBN: 3736980108
Category : Technology & Engineering
Languages : en
Pages : 286
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Book Description
The knowledge of behavior of liquids with free surfaces to their surrounding gaseous phase in compensated gravity is essential to the development of tank systems for spacecrafts. In microgravity, the liquid behavior is dominated by capillary forces, which are used to position and redistribute liquid propellant in a desired way for the mission. The body forces occurring due to residual accelerations, which can be caused by spin during the ballistic flight phases, force the liquid to reorient towards a new equilibrium state of the free surface. Due to spin the liquid is driven away from the tank outlet and located along tank walls in partially filled tanks. To assure enough liquid fuel over the tank outlet, so-called Propellant Management Devices (PMD’s), are employed. A PMD is a static, usually metal structure, which either provides a passage way for a liquid in microgravity or stores a certain amount of liquid at a desired location. Some PMD’s are designed to be refillable in periods of microgravity due to openings in the outer housing or by a housing composed of perforated metallic sheets. These reservoirs are refilled in periods of compensated gravity in order to provide the required amount of liquid fuel for attitude control or other maneuverings. Relatively large disturbances, such as lateral accelerations and spin, can drive the liquid fuel out of the reservoir, resulting in malfunction of the device. During spilling, gas enters the device such that only a residual amount of liquid propellant can be kept in the reservoir. Moreover, the connection to the bulk liquid in the tank may be interrupted such that refilling of the reservoir is disrupted. Hence, a PMD with two parallel disks forming the inlet and a venting tube at the topmost point of the outer housing shall be designed such that its refillable structure is only filled with liquid without any gas or vapor being easily trapped during operations.
Author: Stanford University. Thermosciences Division. Thermosciences Division
Publisher:
ISBN:
Category :
Languages : en
Pages : 116
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Book Description
Author: Thompson Sarkodie-Gyan
Publisher: Springer Nature
ISBN: 3031327810
Category : Technology & Engineering
Languages : en
Pages : 315
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Book Description
The textbook describes the complexity of the human dynamic behavior in space and its ability to produce coordinated, adaptive, dynamically stable movements under steady conditions while negotiating complex terrains and experiencing unexpected perturbations. Applying fundamental theories of biomechanics and physiology, the authors further consider the physical, perceptual, and motor aspects of the locomotor system towards the analysis of how humans can behave adaptively in space by virtue of their intelligent sensory-motor functions and to illuminate our understanding of how this complexity in behavior can provide insight into the neural control of locomotion of the musculoskeletal system. The text provides a foundation for describing the normal and abnormal human locomotor systems. The Human Locomotor System: Physiological and Technological Foundations is intended as a primary text for upper-undergraduate and graduate-level courses in neuroscience, gait analysis, kinesiology, physical therapy, sports science, and biomedical and rehabilitation engineering. It is also a valuable professional reference for scientists and engineers at medical and pharmaceutical companies involved in bioengineering research and development.
Author: Ludwig Ombregt
Publisher: Elsevier Health Sciences
ISBN: 0702052957
Category : Medical
Languages : en
Pages : 1271
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Book Description
Since its first publication, almost two decades ago, A System of Orthopaedic Medicine has proven to be a reliable resource and guide for those clinicians working in the field of orthopaedic medicine who assess and treat the effects of musculoskeletal pain. This third edition remains focused on clinical reasoning and diagnosis, with detailed guidance on palpation of the anatomical structures and the correct performance of each therapeutic technique. Following the 'System', the clinician first completes a systematic clinical assessment of the joints involved, and then, after interpreting the results, groups the disorders and conditions into clinical syndromes. Finally, the natural history and the conservative treatment of each condition are discussed accordingly. NEW! Building on the previous edition, A System of Orthopaedic Medicine now comes with access to online resources designed to support and enhance the learning experience of each and every clinician using the book. The new edition has been streamlined for easier access and handling by transferring all the applied anatomy chapters, references, links and other selected chapters onto the online resources. LOG ON TO www.orthopaedicmedicineonline.com TO START YOUR EXPERIENCE AND ACCESS: - x100 video clips of examination and treatment techniques (referenced in the book) - all the references with access to the abstracts on Medline - online only chapters which includes applied anatomy (referenced in the book) - A logical, step-by-step approach to examination and assessment which helps identify the source of the problem more quickly and surely - Fully comprehensive – the entire musculoskeletal system is addressed - Summary charts and tables facilitate quick reference and easy revision - Multiple illustrations supplement and further clarify the text - Differential diagnosis flowcharts summarize the deductive thought sequence which should be followed for each joint examination - Access to online resources which include videos of techniques and much more! – www.orthopaedicmedicineonline.com
Author: B.E. Gerber
Publisher: Springer Science & Business Media
ISBN: 3642564208
Category : Medical
Languages : en
Pages : 400
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Book Description
This book provides easy-to-use guidelines and how-to-do instructions on the benefits and risks of laser application, decision-making and patient selection and especially on the clinical application of lasers. It thoroughly covers the areas of arthroscopic surgery, spine surgery and open surgery.
Author: Minrui Fei
Publisher: Springer
ISBN: 9811063702
Category : Computers
Languages : en
Pages : 615
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Book Description
The three-volume set CCIS 761, CCIS 762, and CCIS 763 constitutes the thoroughly refereed proceedings of the International Conference on Life System Modeling and Simulation, LSMS 2017, and of the International Conference on Intelligent Computing for Sustainable Energy and Environment, ICSEE 2017, held in Nanjing, China, in September 2017. The 208 revised full papers presented were carefully reviewed and selected from over 625 submissions. The papers of this volume are organized in topical sections on: Biomedical Signal Processing; Computational Methods in Organism Modeling; Medical Apparatus and Clinical Applications; Bionics Control Methods, Algorithms and Apparatus; Modeling and Simulation of Life Systems; Data Driven Analysis; Image and Video Processing; Advanced Fuzzy and Neural Network Theory and Algorithms; Advanced Evolutionary Methods and Applications; Advanced Machine Learning Methods and Applications; Intelligent Modeling, Monitoring, and Control of Complex Nonlinear Systems; Advanced Methods for Networked Systems; Control and Analysis of Transportation Systems; Advanced Sliding Mode Control and Applications; Advanced Analysis of New Materials and Devices; Computational Intelligence in Utilization of Clean and Renewable Energy Resources; Intelligent Methods for Energy Saving and Pollution Reduction; Intelligent Methods in Developing Electric Vehicles, Engines and Equipment; Intelligent Computing and Control in Power Systems; Modeling, Simulation and Control in Smart Grid and Microgrid; Optimization Methods; Computational Methods for Sustainable Environment.
Author: Masaki Watanabe
Publisher:
ISBN:
Category :
Languages : en
Pages : 176
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Book Description
Author: Sean O'Neill
Publisher: Elsevier Health Sciences
ISBN: 070208381X
Category : Medical
Languages : en
Pages : 213
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Book Description
The Systems of the Body series has established itself as a highly valuable resource for medical and other health science students following today's systems-based courses. Now thoroughly revised and updated in this third edition, each volume presents the core knowledge of basic science and clinical conditions that medical students need, providing a concise, fully integrated view of each major body system that can be hard to find in more traditionally arranged textbooks or other resources. Multiple case studies help relate key principles to current practice, with links to clinical skills, clinical investigation and therapeutics made clear throughout. Each (print) volume also now comes with access to the complete, enhanced eBook version, offering easy anytime, anywhere access - as well as self-assessment material to check your understanding and aid exam preparation. The Musculoskeletal System provides highly accessible coverage of the core basic science principles in the context of clinical case histories, giving the reader a fully integrated understanding of the system and its major diseases. - RHEUMATOID ARTHRITIS AND THE HAND - SOFT TISSUE RHEUMATIC DISEASE INVOLVING THE SHOULDER AND ELBOW - NERVE COMPRESSION SYNDROMES - LOWER BACK PAIN - BONE STRUCTURE AND FUNCTION IN NORMAL AND DISEASE STATES - THE SYNOVIAL JOINT IN HEALTH AND DISEASE: OSTEOARTHRITIS - CRYSTAL ARTHROPATHIES AND THE ANKLE - SKELETAL MUSCLE AND ITS DISORDERS - AUTOIMMUNITY AND THE MUSCULOSKELETAL SYSTEM - TRAUMA AND THE MUSCULOSKELETAL SYSTEM - INFECTION AND THE MUSCULOSKELETAL SYSTEM Systems of the Body Series: - The Renal System - The Musculoskeletal System - The Nervous System - The Digestive System - The Endocrine System - The Respiratory System - The Cardiovascular System
Author: C Amarnath
Publisher: Elsevier Health Sciences
ISBN: 8131263681
Category : Medical
Languages : en
Pages : 2335
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Book Description
Comprehensive Textbook of Clinical Radiology Volume VI: Musculoskeletal System - eBook
Author: Karel J. Hamelynck
Publisher: Springer Science & Business Media
ISBN: 364259347X
Category : Medical
Languages : en
Pages : 374
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Book Description
Worldwide experience with the Lcs• mobile bearing total knee prosthesis has been unpar alleled both in terms of enduring popularity and outstanding long-term clinical results. Buechel and Pappas's design was based on the principles of; restoring anatomical joint function to as near normal as possible, minimising contact stresses to avoid wear and darn age to the bearing surfaces. and finally the idea that constraint should refiect the need for mobility, to avoid shear stresses and loosening of the implant. In 1977, the LCS® knee was implanted by Dr. Frederick Buechel. This was the first mobile bearing, tri-compartmental knee implant. This was also the first to successfully address the key issues ofloosening, wear and patello-femoral problems associated with earlier designs. The unique design solution was the creation of a common articulating geometry for the tibia and patella on the distal femoral surface. This resulted in a tibial and patellar articulation that was mobile in nature, but with an identical radius of curvature and conformity. The mobile bearing concept was considered sufficiently novel and unproven that the US FDA (Food & Drug Administration) required that it be validated in an Investigational Device Evaluation (IDE). An FDA IDE study involving 25 US surgeons was initiated in 1981. Validation of the clinical success of the device in this study resulted in FDA approval of the LCS, Knee (for cemented, tri-compartmental use) in 1985.
