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Related Concept Videos

Virtual Work01:20

Virtual Work

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The principle of virtual work states that if a body is in static and dynamic equilibrium, then the sum of all the virtual work done by all external forces and couple moments for any given virtual displacement must be zero.
In static equilibrium, a body can experience an imaginary or virtual movement, such as displacement or rotation. The virtual work done by a force is equal to the dot product of force and virtual displacement in the direction of the force. When it comes to virtually rotating a...
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What are Estimates?01:06

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It isn't easy to measure a parameter such as the mean height or the mean weight of a population. So, we draw samples from the population and calculate the mean height or mean weight of the individuals in the sample. This sample data acts as a representative measure of the population parameter. These sample statistics are known as estimates. 
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Primary Healthcare Services01:30

Primary Healthcare Services

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Primary care promotes wellness and prevents disease. This care includes health promotion, education, protection (such as immunizations), early disease screening, and environmental considerations. Settings providing this type of healthcare include physician offices, public health clinics, school nursing, and community health nursing.
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Preventive Healthcare Services01:30

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Preventive healthcare services keep people healthy via frequent check-ups, screening, and counseling. They primarily aid in disease prevention rather than treating an acute or chronic illness. Preventive treatment also keeps individuals productive and energetic, allowing them to work well into their retirement years. Examples of preventive care services include:
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Estimation of k and VD of Aminoglycosides01:20

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Aminoglycosides are a class of antibiotics used to treat various bacterial infections. Clinicians must determine the elimination rate constant (k) and volume of distribution (VD) to optimize therapeutic efficacy and minimize toxicity. The k value represents the rate at which the drug is removed from the body, and the VD reflects the degree to which the drug distributes into body tissues. Accurately estimating these parameters allows healthcare professionals to tailor drug dosing to individual...
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Principle of Virtual Work: Problem Solving01:13

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The principle of virtual work is an essential concept in the field of mechanics and engineering. This is used to solve problems related to the equilibrium of a structure or system. It is based on the assumption that if a system is in equilibrium, the work done by all the forces during a virtual displacement is zero. This principle is applied by considering virtual displacements of the system and the corresponding work done by internal and external forces.
To apply the principle of virtual work,...
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A Teleoperated Robotic System-Assisted Percutaneous Transiliac-Transsacral Screw Fixation Technique
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Teleoperation System for Service Robots Using a Virtual Reality Headset and 3D Pose Estimation.

Tiago Ribeiro1, Eduardo Fernandes1, António Ribeiro1

  • 1Automation and Robotics Laboratory, Algoritmi Center, University of Minho, 4800-058 Guimaraes, Portugal.

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|January 28, 2026
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Summary
This summary is machine-generated.

This study introduces an immersive teleoperation system for service robots, enhancing human-robot interaction through real-time 3D pose estimation and virtual reality (VR). The framework enables intuitive robot control but faces limitations in precise joint rotation estimation.

Keywords:
3D pose estimationRGB-D sensinghuman–robot interactionservice robotsteleoperationvirtual reality

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Area of Science:

  • Robotics
  • Human-Computer Interaction
  • Computer Vision

Background:

  • Service robots require intuitive control for complex tasks.
  • Existing teleoperation methods often lack natural interaction and situational awareness.
  • Integrating real-time human pose estimation with VR offers a promising solution.

Purpose of the Study:

  • To develop an immersive teleoperation framework for service robots.
  • To enable intuitive and natural robot control using 3D human pose estimation and VR.
  • To enhance situational awareness and robot manipulation capabilities.

Main Methods:

  • Utilized MediaPipe for 2D landmark detection and an Intel RealSense D455 camera for depth data.
  • Reconstructed 3D human joint positions and computed joint angles.
  • Mapped joint angles to the CHARMIE service robot's anthropomorphic arm kinematics.
  • Implemented a VR interface with stereoscopic video and head-motion control.

Main Results:

  • Demonstrated reliable arm teleoperation and effective telepresence in real-world object grasping tasks.
  • Achieved intuitive control of the service robot's arm.
  • Identified limitations in vision-only estimation for axial joint rotations, especially with occlusions.

Conclusions:

  • The proposed framework offers a practical approach to low-cost, sensor-driven, immersive human-robot interaction.
  • The system enhances service robot capabilities in dynamic environments.
  • Further research is needed to address limitations in precise joint rotation estimation for improved teleoperation.