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Related Concept Videos

Hearing01:31

Hearing

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When we hear a sound, our nervous system is detecting sound waves—pressure waves of mechanical energy traveling through a medium. The frequency of the wave is perceived as pitch, while the amplitude is perceived as loudness.
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Line Loss01:10

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The different configurations of source-load connections include wye (star) and delta connections. The relationship between line and phase voltages and currents varies depending on the configuration. When the source is supplying power, it is transmitted through the wires to the load, and during this transmission, some power is absorbed by the wires, leading to line loss.
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Reducing Line Loss01:18

Reducing Line Loss

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In a three-phase circuit, line loss is an indicator of energy dissipated as heat due to the resistance of transmission lines. To address this, incorporating transformers into the system—a step-up transformer at the source and a step-down transformer at the load—is a strategic solution. Two three-phase transformers are introduced to improve this.
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Energy Losses in Transformers01:21

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In an ideal transformer, it is assumed that there are no energy losses, and, hence, all the power at the primary winding is transferred to the secondary winding. However, in reality,  the transformers always have some energy losses, and, hence, the output power obtained at the secondary winding is less than the input power at the primary winding due to energy losses.
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Major Losses in Pipes01:28

Major Losses in Pipes

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When a fluid flows through a pipe, it experiences energy losses due to frictional resistance along the pipe walls, known as major losses. These energy losses result in a pressure drop, which varies based on the flow conditions — whether laminar or turbulent — and the specific physical properties of the fluid and pipe.
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Minor Losses in Pipes01:25

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In pipe systems, minor losses refer to energy losses arising from components such as valves, bends, fittings, expansions, and other features that disrupt the steady flow of fluid. These disturbances cause energy dissipation through turbulence and resistance, which engineers quantify to manage system efficiency effectively.
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Related Experiment Video

Updated: Feb 5, 2026

Author Spotlight: Optimizing EAS with Long Electrodes for Enhanced Cochlear Coverage and Hearing Preservation
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Author Spotlight: Optimizing EAS with Long Electrodes for Enhanced Cochlear Coverage and Hearing Preservation

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Hearing loss.

Jennifer W Lee1, Manohar L Bance2,3

  • 1Otology and Skull Base Unit, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK.

Practical Neurology
|September 7, 2018
PubMed
Summary
This summary is machine-generated.

Hearing loss impacts many, causing communication issues and links to depression and dementia. Early clinical and audiological assessment guides appropriate medical or rehabilitative treatment.

Keywords:
entneurootologysurgery

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Area of Science:

  • Otolaryngology
  • Audiology
  • Public Health

Background:

  • Hearing loss is a widespread condition affecting 1 in 6 individuals in the UK.
  • It presents a substantial disease burden, linked to communication difficulties, depression, and dementia.
  • Accurate diagnosis is crucial for effective management and improving patient outcomes.

Purpose of the Study:

  • To outline the diagnostic process for hearing loss.
  • To detail recommended screening for specific hearing loss types.
  • To describe current therapeutic and rehabilitative approaches.

Main Methods:

  • Clinical assessment including targeted history and physical examination.
  • Audiological testing to determine hearing loss type and severity.
  • Retrocochlear screening for specific indications like sudden or asymmetric sensorineural hearing loss.

Main Results:

  • Clinical and audiological evaluations effectively identify hearing loss characteristics and causes.
  • Retrocochlear screening is vital for specific sensorineural hearing loss presentations.
  • Treatment varies by hearing loss type, including medical/surgical options and hearing assistive devices.

Conclusions:

  • Comprehensive assessment is key to diagnosing hearing loss.
  • Targeted screening protocols improve detection of specific conditions.
  • Management strategies range from medical interventions to hearing aids and assistive devices for rehabilitation.