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Related Concept Videos

Temperature Measurement Sites01:14

Temperature Measurement Sites

3.8K
A thermometer measures body temperature. The common sites for measuring body temperature are the oral cavity, axillary region, temporal artery, and skin surface, such as the forehead, abdomen, and axilla. True core body temperature is assessed in the rectum, tympanic membrane, pulmonary artery, esophagus, and urinary bladder.
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...
3.8K
Equipments Used to Measure Body Temperature01:13

Equipments Used to Measure Body Temperature

2.0K
Body temperature can be assessed using various devices and measured in Celsius or Fahrenheit.
Glass-bulb Thermometer:
Glass-bulb thermometers are hollow glass tubes with a bulb tip containing liquid such as ethanol or mercury. Historically, glass bulb mercury thermometers were the standard device to measure body temperature. Today, mercury thermometers are prohibited in many countries due to the hazardous effects of mercury and the risk of exposure if the glass bulb breaks. In general,...
2.0K
Assessing Body Temperature - Temporal Artery01:19

Assessing Body Temperature - Temporal Artery

1.5K
Here is a stepwise guide to assessing the body temperature at the temporal artery using a temporal artery thermometer
Step 1: Perform hand hygiene and don a fresh pair of gloves to prevent cross-infection and ensure patient safety.
Step 2: Explain the procedure to the patient to establish trust. Clear communication establishes trust with the patient, ensures they understand what to expect, promotes cooperation, and enhances comfort during the procedure.  
Step 3: Assess the patient's...
1.5K
Assessing Body Temperature - Axilla01:14

Assessing Body Temperature - Axilla

1.6K
Procedural Guide for Assessing Axillary Body Temperature using a Digital Thermometer:
Step 1: Perform hand hygiene and put on clean gloves to maintain infection control and prevent cross-contamination.
Step 2: Prepare the patient by explaining the procedure to ensure understanding and cooperation. Ensure privacy, expose the axilla, and inform the patient that minimal movement is crucial for an accurate reading.
Step 3: Adjust the patient’s clothing to expose only the axilla. It minimizes...
1.6K
Assessing Body Temperature - Tympanic membrane01:14

Assessing Body Temperature - Tympanic membrane

1.3K
Assessing tympanic membrane temperature involves using a tympanic membrane thermometer (TMT). Here is a step-by-step guide:
Step 1: Begin by practicing good hand hygiene to prevent the transmission of microorganisms.
Step 2: Turn on the thermometer and wait until the ready sign appears on the screen to ensure accurate measurement.
Step 3: Slide the probe cover in place to prevent cross-contamination.
Step 4: Instruct the patient to tilt their head to the side for comfort and check for cerumen...
1.3K
Assessing Body Temperature - Rectal01:27

Assessing Body Temperature - Rectal

14.0K
Rectal temperature measurement is considered the most precise method for assessing core body temperature and typically registers higher than oral temperature. For adults, the rectal thermometer should be inserted 1 to 1.5 inches into the rectum to obtain the most accurate reading.
Follow these steps for rectal temperature assessment:
Step 1: Perform hand hygiene and don clean gloves to prevent cross-infection.
Step 2: Position the patient in a side-lying position to better visualize the rectal...
14.0K

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Method for Recording Broadband High Resolution Emission Spectra of Laboratory Lightning Arcs
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Method for Recording Broadband High Resolution Emission Spectra of Laboratory Lightning Arcs

Published on: August 27, 2019

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Measuring Method for Lightning Channel Temperature.

X Li1, J Zhang1, L Chen1

  • 1Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science &Technology, Nanjing, 210044, China.

Scientific Reports
|September 27, 2016
PubMed
Summary
This summary is machine-generated.

This study determined lightning channel temperatures using spectral analysis and a local thermodynamic equilibrium (LTE) model. Results show lightning channel temperature correlates exponentially with current intensity, aligning with natural lightning observations.

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Area of Science:

  • Plasma Physics
  • Spectroscopy
  • Atmospheric Science

Background:

  • Understanding lightning temperature is crucial for atmospheric physics.
  • Previous methods for determining lightning channel temperature have limitations.

Purpose of the Study:

  • To determine the temperature of a simulated lightning channel.
  • To investigate the relationship between lightning current intensity and channel temperature.

Main Methods:

  • Utilized the impulse current generator platform (ICGS) to simulate lightning discharge.
  • Applied lightning spectra theory and the local thermodynamic equilibrium (LTE) model.
  • Calculated spectral energy using infrared (930 nm) and visible (648.2 nm) spectroscopy.

Main Results:

  • Luminous intensity peaks in both infrared and visible spectra increased with lightning current (5-50 kA).
  • Derived lightning channel temperatures ranged from 6140.8 to 10424 K.
  • Channel temperature showed an exponential relationship with lightning current intensity.

Conclusions:

  • The simulated lightning channel temperature is consistent with natural lightning cases.
  • The study validates the LTE model and spectral analysis for lightning temperature determination.
  • Findings contribute to a better understanding of lightning physics and energy transfer.