Academic literature on the topic 'Inverse kinetic task'

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Journal articles on the topic "Inverse kinetic task"

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Reips, Louise, Martin Burger, and Ralf Engbers. "Towards dynamic PET reconstruction under flow conditions: Parameter identification in a PDE model." Journal of Inverse and Ill-posed Problems 26, no. 2 (2018): 185–200. http://dx.doi.org/10.1515/jiip-2015-0016.

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AbstractThe aim of this paper is to discuss potential advances in PET kinetic models and direct reconstruction of kinetic parameters. As a prominent example we focus on a typical task in perfusion imaging and derive a system of transport-reaction-diffusion equations, which is able to include macroscopic flow properties in addition to the usual exchange between arteries, veins, and tissues. For this system we propose an inverse problem of estimating all relevant parameters from PET data. We interpret the parameter identification as a nonlinear inverse problem, for which we formulate and analyze
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Flanagan, Sean P., and George J. Salem. "The Validity of Summing Lower Extremity Individual Joint Kinetic Measures." Journal of Applied Biomechanics 21, no. 2 (2005): 181–88. http://dx.doi.org/10.1123/jab.21.2.181.

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In the analysis of human movement, researchers often sum individual joint kinetics to obtain a single measure of lower extremity function. The extent to which these summed measures relate to the mechanical objectives of the task has not been formally validated. The criterion validity of these measures was established with comparisons to the mechanical objective of two multiple-joint tasks. For the Work task 18 participants performed a loaded barbell squat using 4 resistances while instrumented for biomechanical analysis. For the Power they performed 2 predetermined amounts of work at both self
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Kontsevoi, S., I. Bredykhin, and M. Kontseva. "GENERATION OF A DIFFERENTIAL EQUATIONS SYSTEM TO SIMULATE THE KINETICS OF A COMPLEX CHEMICAL PROCESS." Scientific heritage, no. 93 (July 22, 2022): 103–6. https://doi.org/10.5281/zenodo.6882666.

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The solution of the inverse kinetic task based on formal kinetics was not often implemented in the past due to the need for a large volume of calculations, which even with the advent of computers were not performed at an acceptable rate. Such a situation is related to the computational nature of the problems, which require a huge number of solution variants. The appearance of adaptive self-learning algorithms and corresponding software allows today to solve such problems in a reasonable time, although the stage of algorithm learning can take minutes and even hours on modern computers. The prog
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Costes, Antony, Nicolas A. Turpin, David Villeger, Pierre Moretto, and Bruno Watier. "Influence of Position and Power Output on Upper Limb Kinetics in Cycling." Journal of Applied Biomechanics 32, no. 2 (2016): 140–49. http://dx.doi.org/10.1123/jab.2014-0295.

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Several suggestions on the upper limb involvement in cycling exist but, to date, no study has quantified upper limb kinetics in this task. The aim of this study was to determine how crank power and pedaling position (seated or standing) affect upper limb kinetics. Handlebar loadings and upper limb kinematics were collected from 17 participants performing seated or standing pedaling trials in a random order at 6 crank powers ranging from 20% (112 ± 19 W) to 120% (675 ± 113 W) of their spontaneous sit-to-stand transition power. An inverse dynamics approach was used to compute 3D moments, powers,
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Ghorbani Faal, Sanubar, Elham Shirzad, Ali Sharifnezhad, Mojtaba Ashrostaghi, and Roozbeh Naemi. "A Novel Method for Field Measurement of Ankle Joint Stiffness in Hopping." Applied Sciences 11, no. 24 (2021): 12140. http://dx.doi.org/10.3390/app112412140.

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Stiffness of ankle joint has been investigated in a wide range of biomechanical studies with a focus on the improvement of performance and reduction in the risk of injury. However, measuring ankle joint stiffness (AJS) using the existing conventional methodologies requires sophisticated equipment such as force plate and motion analyses systems. This study presents a novel method for measuring AJS during a hopping task with no force or motion measurement system. Also the validity of the proposed new method was investigated by comparing the results against those obtained using conventional metho
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Martini dos Santos, Tiara, Louise Reips, and José Mario Martínez. "Under-relaxed quasi-Newton acceleration for an inverse fixed-point problem coming from Positron Emission Tomography." Journal of Inverse and Ill-posed Problems 26, no. 6 (2018): 755–70. http://dx.doi.org/10.1515/jiip-2016-0058.

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Abstract Quasi-Newton acceleration is an interesting tool to improve the performance of numerical methods based on the fixed-point paradigm. In this paper, a briefly description of the compartmental model employed for a typical task in perfusion imaging is presented. Next, a quasi-Newton strategy for accelerating the convergence of fixed-point iterations is analyzed. For that, classical secant updates are considered. Finally, the quasi-Newton strategy is applied on the practical problem of represent the kinetic behavior of a PET (Positron Emission Tomography) tracer during cardiac perfusion. T
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Chou, P. H., Y. L. Chou, H. C. Wei, C. S. Ho, and S. S. Jiang. "Biomechanical Analysis of Wrist Loading During Lifting Tasks." Journal of Mechanics 17, no. 4 (2001): 179–87. http://dx.doi.org/10.1017/s172771910000191x.

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ABSTRACTThis study develops a kinematic/kinetic model to evaluate the effect of different handle angles on wrist loading during lifting task. An imaged-based motion analysis system is used to study the movement pattern, force and moment of the wrist joint among nine different handle angles. Six CCD cameras were used to record 3-D trajectories of limb-mounted markers based on the laboratory coordination system as defined by an 8-marker cube. Euler angles are used to describe the orientation of a distal segment reference frame relative to a proximal segment reference frame. Each segment of the u
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Ren, Zirui, and Lisheng Zhang. "Research on Inverse Kinematics and Block Grasping Techniques for Six-Axis Robotic Arms." Applied and Computational Engineering 121, no. 1 (2025): 24–34. https://doi.org/10.54254/2755-2721/2025.19492.

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Nowadays, large to a variety of factories and aerospace fields, small to mechanical toys, robotic arm has widely used in all works of life. Because of the interest of robotic arms, during the summer vacation, we did some research on the robot arm in order to better understand the operating principle of the robot arm and how to execute the task. This paper discusses the body frame and kinetic principles of a six-degree swivel manipulator arm. We confine to the High-Level APIs that ROS provides and focus this article on the analysis of mechanical design in a robotic arm using inverse kinematics
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Leylavi Shoushtari, Ali. "What Strategy Central Nervous System Uses to Perform a Movement Balanced? Biomechatronical Simulation of Human Lifting." Applied Bionics and Biomechanics 10, no. 2-3 (2013): 113–24. http://dx.doi.org/10.1155/2013/120707.

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How does the central nervous system control the body posture during various tasks despite a redundancy? It's a well-known question existed in such fields of study as biomechanics and bioengineering. Some techniques based on muscle and torques synergies are presented to study the function which Central Nervous System uses to addresses the kinetic redundancy in musculoskeletal system. The human body with its whole numerous joints considered as a hyper redundant structure which caused to be seemed that it is impossible for CNS to control and signal such system. To solve the kinematic redundancy i
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Mohammadi, Yousef, Mohammad Saeb, Alexander Penlidis, et al. "Intelligent Machine Learning: Tailor-Making Macromolecules." Polymers 11, no. 4 (2019): 579. http://dx.doi.org/10.3390/polym11040579.

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Nowadays, polymer reaction engineers seek robust and effective tools to synthesize complex macromolecules with well-defined and desirable microstructural and architectural characteristics. Over the past few decades, several promising approaches, such as controlled living (co)polymerization systems and chain-shuttling reactions have been proposed and widely applied to synthesize rather complex macromolecules with controlled monomer sequences. Despite the unique potential of the newly developed techniques, tailor-making the microstructure of macromolecules by suggesting the most appropriate poly
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Dissertations / Theses on the topic "Inverse kinetic task"

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Datas, Adrien. "Analyse et simulation de mouvements d'atteinte contraints en position et orientation pour un humanoïde de synthèse." Thesis, Toulouse, INPT, 2013. http://www.theses.fr/2013INPT0005/document.

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La simulation du geste humain est une thématique de recherche importante et trouve notamment une application dans l'analyse ergonomique pour l'aide à la conception de postes de travail. Le sujet de cette thèse concerne la génération automatique de tâches d'atteinte dans le plan horizontal pour un humanoïde. Ces dernières, à partir d'un objectif exprimé dans l'espace de la tâche, requièrent une coordination de l'ensemble des liaisons. L'une des principales difficultés rencontrées lors de la simulation de gestes réalistes est liée à la redondance naturelle de l'humain. Notre démarche est focalis
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Tabandeh, Saleh. "Development of Novel Task-Based Configuration Optimization Methodologies for Modular and Reconfigurable Robots Using Multi-Solution Inverse Kinematic Algorithms." Thesis, 2009. http://hdl.handle.net/10012/4959.

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Modular and Reconfigurable Robots (MRRs) are those designed to address the increasing demand for flexible and versatile manipulators in manufacturing facilities. The term, modularity, indicates that they are constructed by using a limited number of interchangeable standardized modules which can be assembled in different kinematic configurations. Thereby, a wide variety of specialized robots can be built from a set of standard components. The term, reconfigurability, implies that the robots can be disassembled and rearranged to accommodate different products or tasks rather than being replaced.
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Book chapters on the topic "Inverse kinetic task"

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Homayounpour, Mohammad, Dorien Butter, Saaransh Vasta, and Andrew Merryweather. "Validation of an Inverse Kinematic VR Manikin in Seated Tasks: Application in Ergonomics Training." In Proceedings of the 21st Congress of the International Ergonomics Association (IEA 2021). Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-74614-8_45.

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Pfeifer, Denis, Andreas Baumann, Marco Giani, Christian Scheifele, and Jörg Fehr. "Hybrid Digital Twins Using FMUs to Increase the Validity and Domain of Virtual Commissioning Simulations." In Advances in Automotive Production Technology – Towards Software-Defined Manufacturing and Resilient Supply Chains. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-27933-1_19.

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AbstractThe main objective of virtual commissioning is to help design and validate the control systems of entire production plants. Therefore, simulations on a logical and kinematic level are performed, typically in a Software- or Hardware-in-the-Loop configuration using the original control software and controller [1].However, the lack of level of detail means that this type of simulation is insufficient for an integrated system dynamics and control algorithms design. These engineering tasks are currently performed in separate tools, e.g. by finite element analysis, multibody simulations or b
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Trinh, Van-Hai, Duong Vu, and Dinh-Vu Dang. "Planning the Movement of Operating Cylinders of Backhoe Dredgers with Combined Trajectories." In Advances in Transdisciplinary Engineering. IOS Press, 2024. https://doi.org/10.3233/atde241273.

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Replacing the bucket with a drum cutter for excavators placed on floating platforms for dredging tasks is an effective option in construction. Dredging excavators used for channel opening have characteristics and working conditions that differ from conventional excavators such as high working depth, non-visible operating position. Therefore, controlling the drum cutter is a crucial task during equipment operation. In this paper, we will address the problem of inverse kinematics to determine the movements of the hydraulic cylinders to ensure the desired trajectory of the cutter is achieved. Sev
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Bonikila, Pradeep Reddy, Ravi Kumar Mandava, and Pandu Ranga Vundavilli. "Development of Path Tracking Control Algorithm for a 4 DOF Spatial Manipulator Using PID Controller." In Mathematical Concepts and Applications in Mechanical Engineering and Mechatronics. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-1639-2.ch015.

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The path tracking phenomenon of a robotic manipulator arm plays an important role, when the manipulators are used in continuous path industrial applications, such as welding, machining and painting etc. Nowadays, robotic manipulators are extensively used in performing the said tasks in industry. Therefore, it is essential for the manipulator end effector to track the path designed to perform the task in an effective way. In this chapter, an attempt is made to develop a feedback control method for a 4-DOF spatial manipulator to track a path with the help of a PID controller. In order to design
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Bonikila, Pradeep Reddy, Ravi Kumar Mandava, and Pandu Ranga Vundavilli. "Development of Path Tracking Control Algorithm for a 4 DOF Spatial Manipulator Using PID Controller." In Robotic Systems. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-1754-3.ch023.

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The path tracking phenomenon of a robotic manipulator arm plays an important role, when the manipulators are used in continuous path industrial applications, such as welding, machining and painting etc. Nowadays, robotic manipulators are extensively used in performing the said tasks in industry. Therefore, it is essential for the manipulator end effector to track the path designed to perform the task in an effective way. In this chapter, an attempt is made to develop a feedback control method for a 4-DOF spatial manipulator to track a path with the help of a PID controller. In order to design
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Chauhan, Aarti, and Jitendra Kumar. "Analysis of Kinematics of a 12-DOF Biped Robot Gait by Parametrization of Its Body Trajectories." In Advances in Transdisciplinary Engineering. IOS Press, 2023. http://dx.doi.org/10.3233/atde221244.

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This paper focuses on modeling forward and inverse kinematics of a 12-DOF bipedal robot and parametrizing its body trajectory to generate different gaits on 3D terrain.The 12-DOF kinematic chain represents the lower body part of the humanoid robot. The Cartesian coordinate is assigned to each link of the biped robot using the Denavit-Hartenberg (DH) convention. One step of the bipedal walk is divided into three walk phases depending on whether one foot or both feet are in contact with the ground.Time parameterized cubic splines construct the biped robot’s mid-hip and swinging foot trajectory.T
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Heijst*, G. J. F. van, H. J. H. Clercx*, S. R. Maassen*, and J. B. Fl ór**. "Stably Stratified Flow in a Rectangular Container: Cell Pattern Formation and Anomalous Diffusion." In Mixing and Dispersion in Stably Stratified Flows. Oxford University PressOxford, 1999. http://dx.doi.org/10.1093/oso/9780198500155.003.0018.

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Abstract In contrast to three-dimensional (3D) turbulence, two-dimensional (2D) turbulence is characterised by an inverse energy cascade, i.e. a spectral transfer of kinetic energy to larger scales of motion. This process may lead to self organisation of the 2D flow, as can be observed from the formation of coherent vortex structures. This process has been demonstrated in numerical simulations [1, 2], and also by laboratory experiments in soap films [3], in rotating fluids [4, 5] and in density-stratified fluids [6, 7, 8]. Strictly speaking, the flow in these experiments was not exactly 2D, ow
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Conference papers on the topic "Inverse kinetic task"

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Hasson, David, and Andrei Cornel. "Kinetics of CaCO3 Precipitation in the Presence of SHMP." In CORROSION 2007. NACE International, 2007. https://doi.org/10.5006/c2007-07051.

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Abstract The present work examines the kinetics of CaCO3 precipitation in a continuous stirred tank vessel in the presence of the inhibiting additive sodium hexametaphosphate (SHMP). The degree of CaCO3 precipitation and the degree of SHMP adsorption on the crystallizing particles were both measured in a series of experiments performed at the same initial supersaturation level. The parameters varied were the initial SHMP concentration and the residence time in the precipitation vessel. Variation of the SHMP dosage level gave the anticipated trend of a decrease in the degree of CaCO3 precipitat
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Moon, Hyosang, Nina P. Robson, Reza Langari, and John J. Buchanan. "Experimental Observations on the Central Nervous System’s Governing Strategies on the Arm Reaching With Reduced Mobility." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-87763.

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For the motion planning of a point–to–point reaching task with a healthy arm, the CNS tends to plan the shortest hand path between two task points with a bell–shaped velocity profile. If any kinematic or dynamic constraints are imposed on the arm, the CNS adapts to the changes by incorporating learning mechanism into the motion planning. This paper seeks to identify the modified motion planning strategies of the CNS when the elbow joint is constrained to move. We present an experimental protocol, where subjects perform point–to–point reaching tasks with a lightweight elbow brace to restrict th
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Khan, Hamza, Aurel Galantai, and Jozsef K. Tar. "Adaptive solution of the inverse kinematic task by fixed point transformation." In 2017 IEEE 15th International Symposium on Applied Machine Intelligence and Informatics (SAMI). IEEE, 2017. http://dx.doi.org/10.1109/sami.2017.7880312.

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Issa, Hazem, Bence Varga, and Jozsef K. Tar. "Accelerated Reduced Gradient Algorithm for Solving the Inverse Kinematic Task of Redundant Open Kinematic Chains." In 2021 IEEE 15th International Symposium on Applied Computational Intelligence and Informatics (SACI). IEEE, 2021. http://dx.doi.org/10.1109/saci51354.2021.9465623.

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Csanadi, Bertalan, Jozsef K. Tar, and Janos F. Bito. "Matrix inversion-free quasi-differential approach in solving the inverse kinematic task." In 2016 IEEE 17th International Symposium on Computational Intelligence and Informatics (CINTI). IEEE, 2016. http://dx.doi.org/10.1109/cinti.2016.7846380.

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Guo, Weidong, Mileta M. Tomovic, and Jiting Li. "Analysis of the Grasp Planning Method for Manipulation of BH-4 Dextrous Hand." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-41683.

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The paper presents method for planning robotic dexterous hand grasping task using example of the Beihang University’s BH-4 dexterous hand. The grasping planning method is devised through modeling and simulation and experimentally verified using physical prototype. The paper presents the method for forward and inverse kinematic solutions of the BH-4 robot 4-DOF finger, including transformation matrix between the palm coordinate system and the finger base coordinate system. In addition, the method of the idiographic manipulation is presented using example of ball grasping. The simulation results
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Redjimi, Hemza, and Jozsef K. Tar. "Flexible Solution of the Inverse Kinematic Task for Cooperating Robots of Different Structures." In 2020 IEEE 15th International Conference of System of Systems Engineering (SoSE). IEEE, 2020. http://dx.doi.org/10.1109/sose50414.2020.9130543.

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Issa, Hazem, Bence Varga, and Jozsef K. Tar. "A Receding Horizon-type Solution of the Inverse Kinematic Task of Redundant Robots." In 2021 IEEE 15th International Symposium on Applied Computational Intelligence and Informatics (SACI). IEEE, 2021. http://dx.doi.org/10.1109/saci51354.2021.9465618.

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Raoufi, C., A. A. Goldenberg, W. Kucharczyk, and H. Hadian. "Inverse Kinematic and Control Architecture of a Slave Manipulator for MR-Guided Brain Biopsy." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-68302.

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In this paper, the inverse kinematic and control paradigm of a novel tele-robotic system for MRI-guided interventions for closed-bore MRI-guided brain biopsy is presented. Other candidate neurosurgical procedures enabled by this system would include thermal ablation, radiofrequency ablation, deep brain stimulators, and targeted drug delivery. The control architecture is also reported. The design paradigm is fundamentally based on a modular design configuration of the slave manipulator that is performing tasks inside MR scanner. The tele-robotic system is a master-slave system. The master manip
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Teja, Hari, Abhilash Balachandran, and Suril V. Shah. "Optimal Task Planning of Humanoid in Cluttered Environment." In ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/detc2016-60545.

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Due to high degrees of freedom of humanoids and induced redundancy, there are multiple ways of performing a given manipulation task. Finding optimal ways of performing tasks is one desirable property of any motion planning framework. This includes optimizing the path with respect to a certain objective function. Additionally, a variety of constraints need to be satisfied such as stability, self-collision and collision with objects in the environment and also kinematic closed-loop chains formed during the task. Time requirements of the planner is another important aspect that drives us to use s
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