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Related Concept Videos

Virtual Work01:20

Virtual Work

1.5K
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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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.
Next,...
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Principle of Virtual Work: Problem Solving01:13

Principle of Virtual Work: Problem Solving

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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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Real Number Operations01:27

Real Number Operations

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The concept of real numbers includes all the values that can be represented on a continuous number line. The system began with basic counting values used for enumeration. It later expanded to include values that represent the absence of quantity and opposites of the counting values. When situations required expressing parts of a whole or dividing quantities evenly, values capable of representing such proportions were developed. When written using decimal notation, these values can end or repeat...
440
Social Foundations of Self IV: Self in Digital Communication01:30

Social Foundations of Self IV: Self in Digital Communication

235
Since the early 2000s, computer-mediated communication (CMC) has grown rapidly, playing a crucial role in self-development. A key distinction between CMC and real-life interactions is the lack of a physically present partner. This absence makes non-verbal cues such as facial expressions, body language, and paralinguistic signals unavailable in CMC platforms like email, instant messaging, or social media. The lack of these cues can create ambiguity and complicate how feedback is interpreted.The...
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Modeling and Similitude01:12

Modeling and Similitude

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Scaled modeling is a fundamental technique in engineering, enabling the study of large and complex systems by creating smaller, manageable replicas that recreate critical characteristics of the original. In hydrology and civil infrastructure, for example, scaled models of dams help analyze water flow, turbulence, and pressure. This method allows for accurate predictions of real-world behavior within a controlled environment, significantly reducing the cost and time involved in full-scale...
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Using a Virtual Store As a Research Tool to Investigate Consumer In-store Behavior
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To Be Real or Virtual? That is the Question….

Luiz Roberto Reis de Araujo1

  • 1Al. Presidente Taunay, 1820 Mercês, Curitiba, PR, CEP 80430-042, Brazil. drluiz@drluizaraujo.com.br.

Aesthetic Plastic Surgery
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Summary

Plastic surgeons face career management decisions at a professional crossroads. This editorial explores pivotal choices impacting long-term career trajectories in plastic surgery.

Area of Science:

  • Plastic Surgery
  • Surgical Career Development

Background:

  • This editorial addresses the critical juncture in a plastic surgeon's career.
  • It highlights the need for strategic career management.

Discussion:

  • Explores the decision-making process for career progression in plastic surgery.
  • Considers various pathways and challenges faced by surgeons.

Key Insights:

  • Career crossroads require careful consideration of professional goals.
  • Effective management is crucial for sustained success in plastic surgery.

Outlook:

  • Future career planning is essential for plastic surgeons.
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