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Related Concept Videos

Ampere-Maxwell's Law: Problem-Solving01:17

Ampere-Maxwell's Law: Problem-Solving

A parallel-plate capacitor with capacitance C, whose plates have area A and separation distance d, is connected to a resistor R and a battery of voltage V. The current starts to flow at t = 0. What is the displacement current between the capacitor plates at time t? From the properties of the capacitor, what is the corresponding real current?
To solve the problem, we can use the equations from the analysis of an RC circuit and Maxwell's version of Ampère's law.
For the first part of the problem,...
Distributed Loads: Problem Solving01:21

Distributed Loads: Problem Solving

Beams are structural elements commonly employed in engineering applications requiring different load-carrying capacities. The first step in analyzing a beam under a distributed load is to simplify the problem by dividing the load into smaller regions, which allows one to consider each region separately and calculate the magnitude of the equivalent resultant load acting on each portion of the beam. The magnitude of the equivalent resultant load for each region can be determined by calculating...
Ampere's Law: Problem-Solving01:31

Ampere's Law: Problem-Solving

Ampere's law states that for any closed looped path, the line integral of the magnetic field along the path equals the vacuum permeability times the current enclosed in the loop. If the fingers of the right hand curl along the direction of the integration path, the current in the direction of the thumb is considered positive. The current opposite to the thumb direction is considered negative.
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Principle of Virtual Work: Problem Solving01:13

Principle of Virtual Work: Problem Solving

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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Frames: Problem Solving II01:26

Frames: Problem Solving II

Consider a hydraulic hoist supporting a load of 1 kN. Assuming a simplified schematic representation of this frame structure, the force acting on BD and BF members can be determined.
Statically Indeterminate Problem Solving01:16

Statically Indeterminate Problem Solving

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Related Experiment Videos

Function allocation in complex systems: reframing an old problem.

Rose Challenger1, Chris W Clegg, Craig Shepherd

  • 1Institute of Work Psychology, Management School, The University of Sheffield, Sheffield, S10 2TN, UK. r.challenger@sheffield.ac.uk

Ergonomics
|May 9, 2013
PubMed
Summary
This summary is machine-generated.

This study introduces a macroergonomics approach to function allocation, emphasizing its critical role in systems design. Early, evidence-based decisions involving stakeholders are key for effective human and organizational integration in complex work systems.

Related Experiment Videos

Area of Science:

  • Human Factors and Ergonomics
  • Systems Engineering
  • Organizational Design

Background:

  • Function allocation is a long-standing issue in systems design.
  • Traditional microergonomics focuses on task-based decisions, often neglecting broader system implications.
  • A shift towards a macroergonomics perspective is needed for effective systems design.

Purpose of the Study:

  • To propose a macroergonomics perspective on function allocation.
  • To advocate for function allocation as central to effective systems design.
  • To realign thinking from microergonomics to macroergonomics in function allocation.

Main Methods:

  • Framing function allocation within a systems perspective.
  • Advocating for function allocation to be an explicit, early stage in systems design.
  • Promoting multi-stakeholder involvement, including end-users.
  • Emphasizing evidence-based decision-making, risk-framing, and iterative methods like scenario planning.

Main Results:

  • Function allocation decisions are crucial for effective systems design.
  • A macroergonomics approach offers a more holistic view than microergonomics.
  • Integrating function allocation early and transparently enhances system outcomes.

Conclusions:

  • Function allocation should be a transparent, explicit, and early stage in systems design.
  • Involving multiple stakeholders, including end-users, is vital.
  • Decisions should be evidence-based, framed by risk, and utilize iterative methodologies for complex work systems.