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関連する概念動画

Thermal Stress01:09

Thermal Stress

2.6K
If the temperature of an object is changed while it is prevented from expanding or contracting, the object is subjected to stress. The stress is compressive if the object expands in the absence of constraint and tensile if it contracts. This stress resulting from temperature change is known as thermal stress. It can be quite large and can cause damage. To avoid this stress, engineers may design components so they can expand and contract freely. For instance, on highways, gaps are deliberately...
2.6K
Physical Methods for Controlling Microbial Growth: Temperature01:23

Physical Methods for Controlling Microbial Growth: Temperature

243
Heat is a widely used method to control microbial growth by targeting and denaturing cellular proteins, thereby killing or inactivating microbes. This method's effectiveness is quantified using parameters such as the thermal death point (TDP), thermal death time (TDT), and decimal reduction time (D value). TDP represents the lowest temperature at which all microorganisms in a liquid suspension are eliminated within 10 minutes, whereas TDT is the time necessary to achieve sterilization at a...
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Temperature and Thermal Equilibrium01:11

Temperature and Thermal Equilibrium

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Heat and temperature are essential concepts for everyone every day. The study of heat and temperature is part of an area of physics known as thermodynamics. It is not always easy to distinguish heat and temperature.
The concept of temperature has evolved from the common concepts of hot and cold. The scientific definition of temperature explains more than just our sense of hot and cold. Temperature is operationally defined as the quantity measured with a thermometer. Furthermore, temperature is...
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Thermal expansion and Thermal stress: Problem Solving01:27

Thermal expansion and Thermal stress: Problem Solving

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San Francisco's Golden Gate Bridge is exposed to temperatures ranging from -15 °C to 40 °C. At its coldest, the main span of the bridge is 1275 m long. Assuming that the bridge is made entirely of steel, what is the change in its length between these temperatures?
To solve the problem, first, identify the known and unknown quantities. The initial length (L) of the bridge is 1275 m, the coefficient of linear expansion (α) for steel is 12 x 10-6/°C, and the change in...
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Control Systems: Applications01:25

Control Systems: Applications

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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...
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関連する実験動画

Updated: Sep 9, 2025

Author Spotlight: Simulation and Analysis of the Temperature Rise of Ring Main Unit Equipment
04:35

Author Spotlight: Simulation and Analysis of the Temperature Rise of Ring Main Unit Equipment

Published on: July 5, 2024

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自動温度制御FAIMSチップの実験とシミュレーション研究

Xiaoxia Du1, Haonan Liang1, Yao Li1

  • 1School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin 541004, China.

Journal of the American Society for Mass Spectrometry
|September 4, 2025
PubMed
まとめ

キャリアガスの温度は,高場非対称イオン波形移動スペクトロメトリー (FAIMS) の性能に大きな影響を与える. 温度上昇によりピークの高さが低下し,ピークの位置が変化し,揮発性有機化合物 (VOC) の検出精度に影響する.

キーワード:
シミオン高場非対称波形イオン移動スペクトロメトリーモビリティ係数温度制御

さらに関連する動画

Experimental Methods for Investigation of Shape Memory Based Elastocaloric Cooling Processes and Model Validation
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Experimental Methods for Investigation of Shape Memory Based Elastocaloric Cooling Processes and Model Validation

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Temperature-Controlled Assembly and Characterization of a Droplet Interface Bilayer
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Temperature-Controlled Assembly and Characterization of a Droplet Interface Bilayer

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関連する実験動画

Last Updated: Sep 9, 2025

Author Spotlight: Simulation and Analysis of the Temperature Rise of Ring Main Unit Equipment
04:35

Author Spotlight: Simulation and Analysis of the Temperature Rise of Ring Main Unit Equipment

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Experimental Methods for Investigation of Shape Memory Based Elastocaloric Cooling Processes and Model Validation
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科学分野:

  • 分析化学
  • スペクトロメトリー
  • 物理化学

背景:

  • 高場非対称イオン波形移動スペクトロメトリ (FAIMS) は,イオンを分離および検出するための強力な技術です.
  • FAIMSの性能は,ピークの高さとスペクトルの位置を含む,動作パラメータによって影響されていることが知られている.
  • キャリアガスの温度はイオン移動性とFAIMSのスペクトル特性に影響を与える重要な要因です.

研究 の 目的:

  • 高場非対称イオン波形移動スペクトロメトリー (FAIMS) の性能に対するキャリアガス温度の影響を調査する.
  • 温度がFAIMSスペクトルとイオン移動系数に与える影響を実験的および計算的に決定する.
  • シミュレーションソフトウェアで使用するためのイオン移動係数を計算する方法を提供します.

主な方法:

  • 実験分析のために,自己加熱温度制御FAIMSシステムを利用した.
  • 揮発性有機化合物 (VOC) のFAIMSスペクトルを研究した:エタノール,エステン酸,エチルアセテート.
  • 実験データとSIMIONシミュレーションソフトウェアを使用して,移動系数 (a2とa4) を解くための導出方法と応用方法.

主要な成果:

  • 温度上昇により,FAIMSのピークの高さが低下し,テストされたVOCのピーク位置が変化した.
  • シミュレーションでは,加熱中にイオン数 (約60から6) が著しく減少することが示された.
  • 補償電圧は,温度変化によって約1.1V (アセトン),0.7V (エタノール),0.3V (酸性酸),および0.1V (エチルアセテート) に変化する.

結論:

  • 温度制御は,揮発性有機化合物 (VOC) の検出におけるFAIMSの解像度と精度を改善するために不可欠です.
  • この研究は,FAIMSシミュレーションのためのイオン移動係数を計算するための詳細なプロセスを提供します.
  • 温度効果を理解することで,FAIMSの動作を最適化し,より信頼性の高いVOC分析が可能になります.