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Related Concept Videos

Power01:08

Power

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The concept of work involves force and displacement; meanwhile, the work-energy theorem relates the net work done on a body to the difference in its kinetic energy, calculated between two points on its trajectory. While none of these quantities or relations involves time explicitly, we know that the time available to accomplish work is often just as important as the amount of work itself. For example, sprinters in a race may have achieved the same velocity at the finish, therefore,...
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Power and Energy01:12

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The power and energy delivered to an element are subjects of great significance in the field of electrical engineering. It is a well-known fact that a 100-watt light bulb emits more light than a 60-watt one. Therefore, power and energy calculations play a crucial role in the analysis of electrical circuits.
Power, defined as the time rate of expending or absorbing energy, is quantified in units called watts (W). The relation between power and energy is mathematically given as
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Complex Power01:14

Complex Power

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Power engineers have introduced the concept of complex power to determine the cumulative effect of parallel loads. This idea plays a crucial role in power analysis because it encompasses all the details related to the power consumed by a specific load.
Complex power is defined as the multiplication of the voltage and the complex conjugate of the current. The magnitude of this power, known as apparent power, is measured in volt-amperes (VA). Notably, the angle of the complex power equates to the...
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Energy and Power Signals01:17

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In an electrical system with a resistor, voltage and current signals facilitate the measurement of power and energy across the resistor. For a continuous-time signal, the total energy over a time interval is defined as the integral of the square of the signal's magnitude over that interval. Mathematically, this is expressed as:
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Energy and Power of a Wave00:58

Energy and Power of a Wave

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The total energy associated with a wavelength is the sum of the potential energy and the kinetic energy. The average rate of energy transfer associated with a wave is called its power, which is total energy divided by the time it takes to transfer the energy. For a sinusoidal wave, energy and power are proportional to the square of both the amplitude and the angular frequency.
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Maximum Power Transfer01:16

Maximum Power Transfer

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Numerous practical applications within engineering disciplines, such as telecommunications, necessitate optimizing power delivery to a connected load. This pursuit, however, entails inherent internal losses, which can either equal or exceed the power supplied to the load. The Thevenin equivalent circuit is helpful in finding the maximum power a linear circuit can deliver to a load. It is assumed in this context that the load resistance can be adjusted.
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Virtual Agent for Real-Time Motivational Interviewing by Integrating Adaptive Nonverbal Behavior and Language Models
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Dialogue on Peace and Power.

Peggy L Chinn1

  • 1Professor Emerita, University of Connecticut.

Nursing Science Quarterly
|June 9, 2016
PubMed
Summary

This dialogue explores the evolution of Peace and Power concepts over time. It examines how these influential ideas have transformed and developed through historical perspectives.

Area of Science:

  • Nursing Theory
  • Social Sciences

Background:

  • The concepts of Peace and Power are foundational in understanding social dynamics and professional practice.
  • Historical context is crucial for appreciating the evolution of these concepts.

Purpose of the Study:

  • To analyze the historical evolution of the concepts of Peace and Power.
  • To present insights from a dialogue between Pamela Clarke and Peggy Chinn on this topic.

Main Methods:

  • A qualitative analysis of a dialogue between Pamela Clarke and Peggy Chinn.
  • Exploration of conceptual transformations over time.

Main Results:

  • The dialogue reveals shifts in the understanding and application of Peace and Power.
  • Key historical junctures influencing these concepts were identified.
Keywords:
nursingnursing leadershippeace and power

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Conclusions:

  • Understanding the historical evolution of Peace and Power is essential for contemporary discourse.
  • Further dialogue is needed to fully grasp the nuances of these evolving concepts.