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

Virtual Work for a System of Connected Rigid Bodies

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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.
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Health Information Technology and Healthcare Information System01:30

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Health Information Technology (HIT)
Health Information Technology, commonly called HIT, integrates advanced information systems and technology in healthcare settings. Its primary functions include:
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Nursing Clinical Information System01:27

Nursing Clinical Information System

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Nursing Clinical Information System (NCIS)
A Nursing Clinical Information System (NCIS) is a specialized type of healthcare information system tailored to meet the unique needs of nursing practice. It incorporates the principles of nursing informatics to streamline information management and improve the quality of care delivery.
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Machines01:19

Machines

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Machines are complex structures consisting of movable, pin-connected multi-force members that work together to transmit forces. One example of a machine is the cutting plier, which is used to cut wires by applying forces to its handles. When equal and opposite forces are exerted on the handles of the cutting plier, they cause the cutting edges to come together and apply equal and opposite reaction forces on the wire, which are greater than the applied forces.
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Related Experiment Video

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Author Spotlight: Enhancing Engineering Education via WebVR-Based Online Laboratories
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A nested virtualization tool for information technology practical education.

Carlos Pérez1, Juan M Orduña1, Francisco R Soriano2

  • 1Departamento de Informática, Universidad de Valencia, Avda. Universidad, s/n, 46100 Burjassot, Valencia Spain.

Springerplus
|April 23, 2016
PubMed
Summary

NETinVM, a nested virtualization tool, provides a complete virtual lab for IT courses, overcoming practical exercise limitations in security and networking. This solution enhances student learning through feasible demos and labs.

Keywords:
Computer networksLecture-based learningNested virtualizationNetwork securityProblem-based learningSystem administration

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Area of Science:

  • Computer Science
  • Information Technology Education

Background:

  • Information technology courses often struggle with providing adequate practical exercises.
  • This challenge is particularly pronounced in specialized fields like computer networks and cybersecurity.
  • Existing solutions have not fully resolved the issue of hands-on learning in IT education.

Purpose of the Study:

  • To introduce NETinVM, a novel tool designed to facilitate practical exercises in IT education.
  • To demonstrate the capability of NETinVM to host complex virtual labs within a single virtual machine.
  • To evaluate the effectiveness and applicability of NETinVM in diverse teaching scenarios.

Main Methods:

  • Development of NETinVM utilizing nested virtualization technology.
  • Integration of multiple virtual computers and network components into a unified virtual machine.
  • Analysis and assessment of NETinVM's performance and usability in educational settings.

Main Results:

  • NETinVM successfully creates a fully functional virtual laboratory environment.
  • The tool enables the execution of previously unfeasible practical exercises, demonstrations, and labs.
  • Student feedback indicates high appreciation for the practical learning opportunities provided by NETinVM.

Conclusions:

  • NETinVM effectively addresses the challenge of practical training in IT education, especially in network and security courses.
  • The portability of NETinVM allows for consistent replication of both classroom activities and independent student work.
  • The tool significantly enhances the learning experience by making complex practical scenarios accessible to students.