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相关概念视频

Equipments Used to Measure Body Temperature01:13

Equipments Used to Measure Body Temperature

978
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,...
978
Body Temperature01:25

Body Temperature

917
The body's temperature, measured in degrees, is determined by the balance between heat production and dissipation to the surrounding environment. For instance, if exercising vigorously, the body will produce more heat, causing sweat and dissipating that heat. Despite extreme environmental conditions and physical exertion, the human temperature-control system maintains a constant core body temperature (the temperature of deep tissues, which are the tissues located beneath the skin and other...
917
Assessing Body Temperature - Axilla01:14

Assessing Body Temperature - Axilla

576
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...
576
Assessing Body Temperature - Temporal Artery01:19

Assessing Body Temperature - Temporal Artery

533
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...
533
Assessing Body Temperature - Rectal01:27

Assessing Body Temperature - Rectal

3.4K
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...
3.4K
Assessing Body Temperature - Oral01:14

Assessing Body Temperature - Oral

731
Here are the steps to accurately measure oral temperature using an electronic thermometer:
Step 1:
Start by practicing proper hand hygiene to prevent the spread of microorganisms.
Step 2:
Take the thermometer out of the charging unit, switch it on, and wait for the ready sign.
Step 3:
Gently slide the probe cover until a click is heard. This simple action prevents cross-contamination and ensures the correct placement of the probe cover.
Step 4:
Instruct the patient to open their mouth and place...
731

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相关实验视频

Updated: Jun 11, 2025

Mouse Body Temperature Measurement Using Infrared Thermometer During Passive Systemic Anaphylaxis and Food Allergy Evaluation
04:34

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优化机器学习模型用于预测乳牛的核心体温:提高实际畜牧管理的准确性和可解释性.

Dapeng Li1,2, Geqi Yan3, Fuwei Li1,2

  • 1Poultry Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, China.

Animals : an open access journal from MDPI
|September 28, 2024
PubMed
概括

这项研究开发了一种机器学习模型,用于预测奶牛核心体温 (CBT) 和管理热应激. 灰狼优化器-极端梯度提升 (GWO-XGBoost) 模型准确地预测了使用红外干温度的CBT,改善了动物福利.

关键词:
在SHAP中,价值是SHAP值.动物福利 动物福利核心体温 核心体温 核心体温机器学习是机器学习.优化算法优化算法精确的畜牧管理 精确的畜牧管理热舒适度:热舒适度是指热舒适度是指热舒适度.

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科学领域:

  • 动物科学动物科学
  • 机器学习 机器学习
  • 环境生理学环境生理学

背景情况:

  • 热应激显著影响奶牛的健康和生产力.
  • 有效的管理策略对于动物福利和农场经济至关重要.
  • 预测建模为主动缓解热应激提供了一种新的方法.

研究的目的:

  • 开发和验证用于预测奶牛核心体温 (CBT) 的机器学习框架.
  • 确定影响CBT的关键生理和环境因素.
  • 优化预测模型性能,以提高热应激管理.

主要方法:

  • 利用生产环境中的奶牛3005个生理记录的数据集.
  • 应用了各种机器学习算法,包括弹性网,人工神经网络,随机森林,XGBoost,LightGBM和CatBoost.
  • 使用贝叶斯优化和灰狼优化器进行超参数调整和模型改进.

主要成果:

  • 包括平均红外干温度 (IRTave_TK) 在内的功能集显示出强大的预测能力 (R2=0.516,MAE=0.239°C,RMSE=0.302°C).
  • GWO-XGBoost模型实现了最高的精度 (R2=0.540,RMSE=0.294°C,MAE=0.232°C) 和计算效率 (2.41s优化时间).
  • SHAP分析确定IRTave_TK,时区 (TZ),哺乳期 (DOL) 和身体姿势 (BP) 作为CBT的关键预测因素.

结论:

  • 机器学习模型,特别是GWO-XGBoost,可以准确预测奶牛的CBT.
  • 红外热学和生理数据是热应激管理的宝贵投入.
  • 该框架支持及时干预,以保持奶牛的健康和生产力.