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相关概念视频

Gas Chromatography: Types of Detectors-I01:21

Gas Chromatography: Types of Detectors-I

There are different types of detectors used in gas chromatography, each with its own specific properties that make it suitable for detecting certain types of analytes. The most commonly used detectors in GC are thermal conductivity detector (TCD), flame ionization detector (FID), and electron capture detector (ECD).
TCD is the earliest and most widely used detector that operates by measuring the changes in the thermal conductivity of the carrier gas. When a sample compound enters the detector,...

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相关实验视频

Updated: Jun 14, 2026

Thermal Measurement Techniques in Analytical Microfluidic Devices
08:29

Thermal Measurement Techniques in Analytical Microfluidic Devices

Published on: June 3, 2015

在射频导管切除辅助通路时监测温度.

J J Langberg1, H Calkins, R el-Atassi

  • 1Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor 48109-0022.

Circulation
|November 1, 1992
PubMed
概括

对于沃尔夫-帕金森-怀特综合征的射频导管切除过程中,持续监测温度有助于取得成功的结果. 优化温度可以防止阻抗升高,从而可能减少程序时间和能源应用.

科学领域:

  • 电力生理学 电力生理学
  • 心血管医学 心血管医学
  • 医疗器械 医疗器械

背景情况:

  • 动物研究表明,电极-组织接口温度可以预测射频导管切除中病变的大小.
  • 在患有沃尔夫-帕金森-怀特综合征的患者中持续监测温度的实用性需要评估.

研究的目的:

  • 评估持续温度监测在射频导管切除过程中对沃尔夫-帕金森-怀特综合征患者辅助通路的有效性.

主要方法:

  • 20名具有明显预兴奋的患者接受了射频导管切除.
  • 消毒导管中的热敏电阻使得持续的温度监测成为可能.
  • 在不同功率输出 (20-50W) 上应用射频电流,以建立功率-温度关系.

主要成果:

  • 在所有20名患者中成功切除辅助通路.
  • 由于特定站点的加热变化,输出功率不能一致预测温度.
  • 在功率输出≤40W时,往往无法达到用于辅助路径中断的适当温度.
  • 由于凝血形成,阻抗的突然上升仅在95-100°C时发生.

结论:

  • 温度监测可以增强辅助通路的射频导管切除.

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Fabrication of Microscope Stage for Vertical Observation with Temperature Control Function
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Last Updated: Jun 14, 2026

Thermal Measurement Techniques in Analytical Microfluidic Devices
08:29

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Published on: June 3, 2015

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
09:48

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

Published on: November 7, 2016

Fabrication of Microscope Stage for Vertical Observation with Temperature Control Function
06:21

Fabrication of Microscope Stage for Vertical Observation with Temperature Control Function

Published on: July 31, 2019

  • 调整功率以达到最佳温度可以避免阻抗升高.
  • 这种方法可以减少能源应用的数量和程序的总体持续时间.