Leg

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A leg is a weight bearing and locomotive structure, usually having a columnar shape. During locomotion, legs function as "extensible struts" - the combination of movements at all joints can be modeled as a single, linear element capable of changing length and rotating about an omnidirectional "hip" joint. (Wikipedia.org)






Conferences related to Leg

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2018 14th IEEE/ASME International Conference on Mechatronic and Embedded Systems and Applications (MESA)

The goal of the 14th ASME/IEEE MESA2018 is to bring together experts from the fields of mechatronic and embedded systems, disseminate the recent advances in the area, discuss future research directions, and exchange application experience. The main achievement of MESA2018 is to bring out and highlight the latest research results and developments in the IoT (Internet of Things) era in the field of mechatronics and embedded systems.


2018 15th International Workshop on Advanced Motion Control (AMC)

1. Advanced Motion Control2. Haptics, Robotics and Human-Machine Systems3. Micro/Nano Motion Control Systems4. Intelligent Motion Control Systems5. Nonlinear, Adaptive and Robust Control Systems6. Motion Systems for Robot Intelligence and Humanoid Robotics7. CPG based Feedback Control, Morphological Control8. Actuators and Sensors in Motion System9. Motion Control of Aerial/Ground/Underwater Robots10. Advanced Dynamics and Motion Control11. Motion Control for Assistive and Rehabilitative Robots and Systems12. Intelligent and Advanced Traffic Controls13. Computer Vision in Motion Control14. Network and Communication Technologies in Motion Control15. Motion Control of Soft Robots16. Automation Technologies in Primary Industries17. Other Topics and Applications Involving Motion Dynamics and Control


2018 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)

The conference will deal will all aspects of power electronics, motor drives and Power electronics applications to energy systems.


2018 IEEE PES Transmission & Distribution Conference and Exhibition - Latin America (T&D-LA)

The conference will focus on the current state of the art and lessons learned from techniques and practices developed by leading international companies and utilities.


2017 12th IEEE Conference on Industrial Electronics and Applications (ICIEA)

Industrial Informatics, Computational Intelligence, Control and Systems, Cyber-physical Systems, Energy and Environment, Mechatronics, Power Electronics, Signal and Information Processing, Network and Communication Technologies


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Periodicals related to Leg

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Automatic Control, IEEE Transactions on

The theory, design and application of Control Systems. It shall encompass components, and the integration of these components, as are necessary for the construction of such systems. The word `systems' as used herein shall be interpreted to include physical, biological, organizational and other entities and combinations thereof, which can be represented through a mathematical symbolism. The Field of Interest: shall ...


Biomedical Engineering, IEEE Transactions on

Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.


Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on

Methods, algorithms, and human-machine interfaces for physical and logical design, including: planning, synthesis, partitioning, modeling, simulation, layout, verification, testing, and documentation of integrated-circuit and systems designs of all complexities. Practical applications of aids resulting in producible analog, digital, optical, or microwave integrated circuits are emphasized.


Dielectrics and Electrical Insulation, IEEE Transactions on

Electrical insulation common to the design and construction of components and equipment for use in electric and electronic circuits and distribution systems at all frequencies.


Electron Device Letters, IEEE

Publishes original and significant contributions relating to the theory, design, performance and reliability of electron devices, including optoelectronic devices, nanoscale devices, solid-state devices, integrated electronic devices, energy sources, power devices, displays, sensors, electro-mechanical devices, quantum devices and electron tubes.


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Xplore Articles related to Leg

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Human walking assist control on level ground

N. Hata; Y. Hori 9th IEEE International Workshop on Advanced Motion Control, 2006., 2006

Our walking motion control is designed for the purpose of supporting persons who have handicaps. The way of control design is differ from robot control. Simple control, easy sensing and operating are required. Therefore swing leg motion control is introduced. This paper is addressed as 1) control design, 2) walking simulation, and 3)analysis of human walking with our proposing method


Postural Control During One-arm Support Standing: EMG characterization

M. Moynahan; R. J. Triolo; R. R. Betz Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society Volume 13: 1991, 1991

First Page of the Article ![](/xploreAssets/images/absImages/00684768.png)


A SOI capacitor-less 1T-DRAM concept

S. Okhonin; M. Nagoga; J. M. Sallese; P. Fazan 2001 IEEE International SOI Conference. Proceedings (Cat. No.01CH37207), 2001

A simple 1T DRAM cell concept is proposed for the first time. It exploits the body charging of PD SOI devices to store the information. This cell is at least two times smaller in area than the conventional 1T/1C DRAM cell and does not require the integration of a storage capacitor. This concept should allow the manufacture of low cost ...


Calibration of an EMG-Based Body Model with six Muscles to control a Leg Exoskeleton

Christian Fleischer; Gunter Hommel Proceedings 2007 IEEE International Conference on Robotics and Automation, 2007

This paper presents a body model of intermediate level of detail to allow prediction of the knee torque produced by thigh muscles based on EMG signals. This torque prediction is used as input for a torque controller that adapts the level of support offered to an operator by a powered leg orthosis. The level of detail of the body model ...


The Northwest Passage: A Simulation

Saran Somanathan; Peter C. Flynn; Jozef Szymanski Proceedings of the 2006 Winter Simulation Conference, 2006

Shipping from Yokohama to New York and St. Johns, Newfoundland is simulated by VSLAM for two routes: the Panama Canal, using fast and slow bluewater ships, and the Northwest Passage, using identically sized fast and slow Canadian Arctic Class (CAC) 3 ships. Each route is broken into a series of logical legs, and environmental conditions and wait times are assigned. ...


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Educational Resources on Leg

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eLearning

Human walking assist control on level ground

N. Hata; Y. Hori 9th IEEE International Workshop on Advanced Motion Control, 2006., 2006

Our walking motion control is designed for the purpose of supporting persons who have handicaps. The way of control design is differ from robot control. Simple control, easy sensing and operating are required. Therefore swing leg motion control is introduced. This paper is addressed as 1) control design, 2) walking simulation, and 3)analysis of human walking with our proposing method


Postural Control During One-arm Support Standing: EMG characterization

M. Moynahan; R. J. Triolo; R. R. Betz Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society Volume 13: 1991, 1991

First Page of the Article ![](/xploreAssets/images/absImages/00684768.png)


A SOI capacitor-less 1T-DRAM concept

S. Okhonin; M. Nagoga; J. M. Sallese; P. Fazan 2001 IEEE International SOI Conference. Proceedings (Cat. No.01CH37207), 2001

A simple 1T DRAM cell concept is proposed for the first time. It exploits the body charging of PD SOI devices to store the information. This cell is at least two times smaller in area than the conventional 1T/1C DRAM cell and does not require the integration of a storage capacitor. This concept should allow the manufacture of low cost ...


Calibration of an EMG-Based Body Model with six Muscles to control a Leg Exoskeleton

Christian Fleischer; Gunter Hommel Proceedings 2007 IEEE International Conference on Robotics and Automation, 2007

This paper presents a body model of intermediate level of detail to allow prediction of the knee torque produced by thigh muscles based on EMG signals. This torque prediction is used as input for a torque controller that adapts the level of support offered to an operator by a powered leg orthosis. The level of detail of the body model ...


The Northwest Passage: A Simulation

Saran Somanathan; Peter C. Flynn; Jozef Szymanski Proceedings of the 2006 Winter Simulation Conference, 2006

Shipping from Yokohama to New York and St. Johns, Newfoundland is simulated by VSLAM for two routes: the Panama Canal, using fast and slow bluewater ships, and the Northwest Passage, using identically sized fast and slow Canadian Arctic Class (CAC) 3 ships. Each route is broken into a series of logical legs, and environmental conditions and wait times are assigned. ...


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IEEE-USA E-Books

  • Software Lemmings

    According to the author, software developers, in their search for the Holy Grail, are convinced that they are doing something meaningful. Like lemmings, they tend to follow the leader, without ever asking ourselves if they want to go where the leader is taking them. This chapter presents the lemming paths explored by the author and provides an idea of their popularity, goals, risks and payoffs. It explores the terms structured programming, structured analysis and structured design. Object-oriented programming is based on very sound principles of quality programming discovered 20 to 30 years ago: data abstraction, information hiding, encapsulation, inheritance, and so on. The process-maturity path is only the first leg of a very long journey on the path to quality software. The chapter also talks about the C language, software prototyping, CASE tools, and COTS software.

  • Shunt Active Filters

    This chapter covers in detail shunt active filters, including applications to three phase, four¿¿¿wire systems. Additionally, an interesting solution has been proposed for allowing the use of (n¿¿¿1)¿¿¿leg PWM converter in n¿¿¿wire systems. This was enabled by the use of the "split¿¿¿capacitor" converter topology. The principle of shunt current compensation is very effective in compensating harmonic currents of loads. The control algorithm implemented in the controller of the shunt active filter determines the compensation characteristics of the shunt active filter. There are many ways to design a control algorithm for active filtering. Certainly, the p¿¿¿q theory forms a very efficient basis for designing active filter controllers. The shunt active filter can be properly controlled to present a selective compensation characteristic. The control block that calculates the instantaneous power takes as inputs the phase¿¿¿voltages at the point of common coupling (PCC) and the line currents of the nonlinear load that should be compensated.

  • VoltageSourced Converters

    This chapter contains sections titled: * Basic Concept of Voltage-Sourced Converters * Single-Phase Full-Wave Bridge Converter Operation * Single Phase-Leg (POLE) Operation * Square-Wave Voltage Harmonics for a Single-Phase Bridge * Three-Phase Full-Wave Bridge Converter * Sequence of Valve Conduction Process in Each Phase-Leg * Transformer Connections for 12-Pulse Operation * 24- and 48-Pulse Operation * Three-Level Voltage-Sourced Converter * Pulse-Width Modulation (PWM) Converter * Generalized Technique of Harmonic Elimination and Voltage Control * Converter Rating¿¿-¿¿General Comments This chapter contains sections titled: * References

  • OPTIMIZED PWM APPROACH

    This chapter presents some techniques for optimization of the pulse width modulation (PWM) approach considering the fact that the number of pole voltages is higher than the number of voltages demanded by the load, and then there is a degree of freedom to be explored. It shows an optimized PWM strategy for converters with two and three legs, respectively. A PWM approach is presented with both analog and digital implementations, and finally the influence of the parameter is addressed for the quality of the waveform generated as well as for the losses of the converter. The chapter outlines space vector modulation for a three-phase converter. It presents the carrier- based PWM (CPWM) for both a three-leg converter feeding a two-phase symmetrical machine and a four-leg converter supplying a three-phase four-wire load. The CPWM is also employed in non-conventional converters, such as split- wound coupled inductors, Z-source converter, and open-end winding motor.

  • Muscle Coordination, Motor Synergies, and Primitives from Surface EMG

    To investigate neural control strategies, muscle activity must be measured during motor behavior. Recent advances in the investigation of the neural control of movement have led to a re-examination of the mechanisms of sensorimotor integration in the central nervous system (CNS) and in the spinal circuitry in particular. This chapter considers different approaches used to uncover the modular organization of the motor output in human behaviors such as responding to postural perturbations, reaching with the arm, and locomotion, as well as its plasticity and flexibility in movement disorders. It also investigates the strategies that the CNS employs to coordinate the activation of many muscles start from electromyographic (EMG) signals recorded simultaneously from many muscles. Different muscle synergies models are used to decompose the EMG envelopes using appropriate factorization algorithms. The chapter further considers the spatiotemporal organization of the activity patterns of leg and trunk muscles during locomotion.

  • Development of a Testbed for Robotic Neuromuscular Controllers

    Current control approaches to robotic legged locomotion rely on centralized planning and tracking or motion pattern matching. Central control is not available to robotic assistive devices that integrate with humans, and matching predefined patterns severely limits user dexterity. By contrast, biological systems show substantial legged dexterity even when their central nervous system is severed from their spinal cord, indicating that neuromuscular feedback controls can be harnessed to encode stability, adaptability, and maneuverability into legged systems. Here we present the initial steps to develop a robotic gait testbed that can implement and verify neuromuscular controls for robotic assistive devices. The initial stage consists of an antagonistically actuated two segment leg with a floating compliant joint. We detail its electromechanical design and low level, velocity-based torque control. Additionally, we present experiments that test the leg's performance during human-like high fidelity motions. The results show that the robot can track fast motions corresponding to 87% of the maximum performance limit of human muscle. The experiments also reveal limitations of our current implementation and we discuss solutions to overcoming them.

  • Overmodulation of an Inverter

    This chapter contains sections titled: * The Overmodulation Region * Naturally Sampled Overmodulation of One Phase Leg of an Inverter * Regular Sampled Overmodulation of One Phase Leg of an Inverter * Naturally Sampled Overmodulation of Single- and Three-Phase Inverters * PWM Controller Gain during Overmodulation * Space Vector Approach to Overmodulation * Summary This chapter contains sections titled: * References

  • A Carefully Prepared Leg of a Dead Frog Twitches When Stimulated Electrically

    This chapter contains sections titled: * Sources and Recommended Reading

  • Parallel PI Voltage- Current Control of a Neutral Leg

    This chapter contains sections titled: * Description of the Neutral Leg * Design of an _H_ ?> Current Controller * Addition of a Voltage Control Loop * Experimental Results * Summary

  • Three-Phase to Three-Phase and other Back-to-Back Converters

    A three-phase back-to-back converter is an important electrical apparatus with a wide range of applications on systems demanding a processed three-phase voltage. This chapter deals with the full-bridge ac-dc-ac converter presenting its model, pulse width modulation (PWM), and control strategies. Topologies with component count reduction are presented. The chapter describes the model, PWM, and control for configurations with an increased number of semiconductor devices. A similar approach as employed for the three-phase back-to-back converters, that is, shared-leg and dc-link capacitor midpoint connections for reducing the number of semiconductor devices, while connecting back-to-back converters in parallel and series are considered, respectively. The chapter discusses other converters, especially for single-phase to three-phase conversion and for a six-phase motor drive system.



Standards related to Leg

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No standards are currently tagged "Leg"