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Related Concept Videos

Control Systems01:10

Control Systems

Control systems are everywhere in contemporary society, influencing diverse applications from aerospace to automated manufacturing. These systems can be found naturally within biological processes, such as blood sugar regulation and heart rate adjustment in response to stress, as well as in man-made systems like elevators and automated vehicles. A control system is essentially a network of subsystems and processes that collaboratively convert specific inputs into desired outputs.
At the heart...
Control Systems: Applications01:25

Control Systems: Applications

Electrical engineering plays a pivotal role in our daily lives, with control systems at the heart of many applications, from home appliances to sophisticated space shuttles. Control systems manage and regulate the behavior of devices and processes, ensuring they function safely, correctly, and efficiently.
In modern vehicles, control systems manage various functions to enhance performance and safety. The steering wheel and accelerator are primary inputs in a car's control system. The direction...
Propagation of Uncertainty from Systematic Error01:10

Propagation of Uncertainty from Systematic Error

The atomic mass of an element varies due to the relative ratio of its isotopes. A sample's relative proportion of oxygen isotopes influences its average atomic mass. For instance, if we were to measure the atomic mass of oxygen from a sample, the mass would be a weighted average of the isotopic masses of oxygen in that sample. Since a single sample is not likely to perfectly reflect the true atomic mass of oxygen for all the molecules of oxygen on Earth, the mass we obtain from this particular...
Pole and System Stability01:24

Pole and System Stability

The transfer function is a fundamental concept representing the ratio of two polynomials. The numerator and denominator encapsulate the system's dynamics. The zeros and poles of this transfer function are critical in determining the system's behavior and stability.
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Design Consideration01:22

Design Consideration

Designing a structure involves a series of considerations, primarily the material's ultimate strength, calculated through tests that measure changes under increased force until the material reaches its breaking point or limit. The ultimate load, where the material breaks, is divided by its original cross-sectional area, resulting in the ultimate normal stress or strength. The ultimate shearing stress is another significant factor taken into account.
The factor of safety is another key aspect...
Schemas01:42

Schemas

A schema is a mental construct consisting of a cluster or collection of related concepts (Bartlett, 1932). There are many different types of schemata, and they all have one thing in common: schemata are a method of organizing information that allows the brain to work more efficiently. When a schema is activated, the brain makes immediate assumptions about the person or object being observed.

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Related Experiment Videos

How to increase safety in complex systems--an ongoing project.

Håkan Alm1, Anita Gärling, Sara Saellström Bonnevier

  • 1Department of Human Work Sciences, Division of Engineering psychology, Luleå University of Technology, Sweden.

Work (Reading, Mass.)
|February 10, 2012
PubMed
Summary
This summary is machine-generated.

This study investigated general failure types in Swedish railway infrastructure maintenance to enhance organizational safety. Findings informed recommendations for improving safety culture and implementing action plans.

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Area of Science:

  • Occupational safety and health
  • Systems engineering
  • Organizational psychology

Background:

  • Railway infrastructure maintenance and development organizations face unique safety challenges.
  • Identifying latent errors is crucial for proactive safety management.
  • A safety culture is essential for sustainable operational improvements.

Purpose of the Study:

  • To investigate general failure types within a Swedish railway infrastructure organization.
  • To identify latent errors contributing to safety incidents.
  • To propose recommendations for enhancing the organization's safety culture.

Main Methods:

  • Utilized the Tripod Delta method for error analysis.
  • Conducted seminars and interviews with 62 employees.
  • Qualitative data analysis to identify patterns in failures.

Main Results:

  • Identified and described prevalent latent errors within the organization.
  • Provided a basis for understanding the root causes of potential safety issues.
  • Generated specific recommendations for safety improvements.

Conclusions:

  • The investigation successfully identified key failure types and latent errors.
  • Recommendations were formulated to foster a stronger safety culture.
  • The project sets the stage for future follow-up studies to assess implemented changes.