Sökning: "kinematic control"

Visar resultat 21 - 25 av 66 avhandlingar innehållade orden kinematic control.

1. 21. Motor control of the knee : kinematic and EMG studies of healthy individuals and people with patellofemoral pain

   Författare :Ann-Katrin Stensdotter; Charlotte Häger-Ross; Gunnevi Sundelin; Gertjan Ettema; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Kinematics; Kinetic chain tasks; Knee; Motor Control; Muscle activity; Patellofemoral pain; Unpredictable perturbations; Physiotherapy; Sjukgymnastik fysioterapi;

   Sammanfattning : Patellofemoral pain (PFP) is believed to be associated with deficits in coordination between the different heads of the quadriceps muscle; however, considerable debate exists in the literature regarding the presence of such a deficit. Discrepancies between studies may be explained by differences in experimental tasks, such as whether the task is performed with open (OKC) or closed kinetic chain (CKC), or whether the activity is voluntary or triggered. LÄS MER

3. 22. Optimization-based robot grasp synthesis and motion control

   Författare :Robert Krug; Achim Lilienthal; Dimitar Dimitrov; Sami Haddadin; Örebro universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Robot grasping; grasp synthesis; grasp planning; motion control; model predictive control; independent contact regions; obstacle avoidance; motion planning; Datavetenskap; Computer Science;

   Sammanfattning : This thesis investigates the questions of where to grasp and how to grasp a given object with an articulated robotic grasping device. To this end, aspects of grasp synthesis and hand motion planning and control are investigated. LÄS MER

4. 23. Sensorimotor function following anterior cruciate ligament injury : movement control, proprioception and neuropsychological perspectives

   Författare :Adam Grinberg; Charlotte Häger; Martin Björklund; Dario G. Liebermann; Clare Ardern; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; ACL; knee injury; sensorimotor control; proprioception; functional test; fear; anxiety; kinematics; electromyography; EMG; electroencephalography; EEG; brain; neuroplasticity; injury prevention; Sports Medicine; idrottsmedicin;

   Sammanfattning : Background: The high incidence of anterior cruciate ligament (ACL) injuries in sports suggests an involvement of both biomechanical and neurocognitive risk factors. Athletes are constantly exposed to challenging sports scenarios, which are often characterised by high-intensity movements combined with a multi-stimuli environment and continuous psychological pressure. LÄS MER

5. 24. Cooperative and Interaction Control for Underwater Robotic Vehicles

   Författare :Shahab Heshmati-Alamdari; Kostas J. Kyriakopoulos; National Technical University of Athens School of Mechanical Engineering Control Systems Lab; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Marine robotics; Robotics; Underwater Vehicle Manipulator Systems; Cooperative manipulations; Visual servoing; Nonlinear Model Predictive Control; Autonomous Underwater Vehicles; Industrial Information and Control Systems; Industriella informations- och styrsystem; Vehicle and Maritime Engineering; Farkostteknik;

   Sammanfattning : In this dissertation we address the problem of robust control for underwater robotic vehicles under resource constraints and inspired by practical applications in the field of marine robotics. By the term “resource constraints” we refer to systems with constraints on communication, sensing and energy resources. LÄS MER

7. 25. Topics in Trajectory Generation for Robots

   Författare :Mahdi Ghazaei; Institutionen för reglerteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : A fundamental problem in robotics is generating the motion for a task. How to translate a task to motion or a series of movements is a non-trivial problem. LÄS MER