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Related Concept Videos

Virtual Work01:20

Virtual Work

1.4K
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...
1.4K
Principle of Virtual Work: Problem Solving01:13

Principle of Virtual Work: Problem Solving

1.7K
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,...
1.7K
Virtual Work for a System of Connected Rigid Bodies01:06

Virtual Work for a System of Connected Rigid Bodies

770
Virtual work is a powerful method used to solve problems involving several connected rigid bodies. When the system is in equilibrium, virtual work is zero. This allows the calculation of the resulting forces when a system undergoes a virtual displacement. When attempting to analyze such a system, first, use a free-body diagram, where an independent coordinate represents the configuration of the links, and mark its deflected position resulting from the positive virtual displacement.
Next,...
770
Substitution Rule Applied to Indefinite Integrals01:27

Substitution Rule Applied to Indefinite Integrals

104
When a force is applied to a linear spring, the restoring force increases proportionally with the amount of displacement. This behavior is described by Hooke’s law, which allows the work done on the spring to be determined directly from the force–displacement relationship. In this case, the force varies in a simple and predictable manner, making the calculation relatively simple.On the other hand, a nonlinear spring does not obey Hooke’s law. Its restoring force depends on...
104
Substitution Rule Applied to Definite Integrals01:24

Substitution Rule Applied to Definite Integrals

93
When evaluating a definite integral whose integrand matches the structure of a composite function, the substitution method provides an efficient way to simplify the calculation. This method is based on reversing the chain rule from differentiation, allowing a complicated expression to be rewritten in a simpler form. When the integrand contains an inner function and its derivative, substitution naturally reduces the complexity of the problem.The core idea of substitution for definite integrals...
93
Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy01:26

Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy

439
This lesson explores three gastrointestinal imaging techniques: radionuclide testing, colonic transit studies, and virtual colonoscopy.
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and...
439

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Author Spotlight: Enhancing Engineering Education via WebVR-Based Online Laboratories
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Augmented reality (AR) and virtual reality (VR) applied in dentistry.

Ta-Ko Huang1, Chi-Hsun Yang2, Yu-Hsin Hsieh3

  • 1School of Dentistry, Kaohsiung Medical University, Kaohsiung, Taiwan.

The Kaohsiung Journal of Medical Sciences
|April 16, 2018
PubMed
Summary

Augmented reality (AR) and virtual reality (VR) simulators offer an ideal evaluation method for dental students' preclinical examinations. These technologies enhance surgical training and navigation, improving success rates and reducing risks in dental procedures.

Keywords:
Augmented realityDental simulatorDentistryOSCEVirtual reality

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Area of Science:

  • Dental Education Technology
  • Medical Simulation
  • Augmented and Virtual Reality

Background:

  • Objective Structured Clinical Examinations (OSCE) are standard for preclinical dental student evaluation.
  • Traditional methods face limitations in providing realistic, risk-free training environments.
  • Advancements in simulation technology are crucial for modern dental education.

Purpose of the Study:

  • To review recent developments in virtual reality (VR) and augmented reality (AR) for dental education.
  • To assess the impact of VR/AR on dental skill acquisition and surgical training.
  • To explore the potential of VR/AR in improving preclinical dental assessments.

Main Methods:

  • Literature review of VR and AR applications in dentistry.
  • Analysis of technological advancements in surgical simulation.
  • Examination of VR/AR integration in dental training curricula.

Main Results:

  • VR and AR simulators represent an ideal assessment tool for OSCE in dental education.
  • These technologies significantly impact training lessons and navigation systems.
  • VR/AR enhance surgical skills, increase success rates, and decrease surgical risks.

Conclusions:

  • VR and AR are transformative technologies in dental training and surgery.
  • The integration of VR/AR improves the overall quality of dental education and clinical practice.
  • Continued development in tracking units and simulation technology is vital for future advancements.