相关实验视频

Updated: Jan 28, 2026

A High-performance Compact Photoacoustic Tomography System for In Vivo Small-animal Brain Imaging
05:32

A High-performance Compact Photoacoustic Tomography System for In Vivo Small-animal Brain Imaging

Published on: June 21, 2017

11.0K

紧的差异光声学呼气传感器用于在线监控ETCO和ETO

Xukun Yin1, Chenchen Zhu1, Xiu Yang1

  • 1School of Optoelectronic Engineering, Xidian University, Xi'an 710071, Shaanxi, China.

ACS sensors
|January 27, 2026
PubMed
概括

一个新的紧型光声气体传感器可以准确地实时监测排气中的潮尾二氧化碳 (ETCO2) 和潮尾氧气 (ETO2). 这种非侵入性技术为临床应用提供了快速响应和高灵敏度.

关键词:
潮结束时每天进行氧气监测.呼出的气息 呼出的气息摄影声学光谱学是指光声学光谱学红色二极管激光器 红色二极管激光器微量气体传感器 微量气体传感器

更多相关视频

Photoacoustic Cystography09:49

Photoacoustic Cystography

Published on: June 11, 2013

14.0K
Fast and Accurate Exhaled Breath Ammonia Measurement06:27

Fast and Accurate Exhaled Breath Ammonia Measurement

Published on: June 11, 2014

13.9K

相关概念视频

Pulmonary Cycle: Exhalation01:17

Pulmonary Cycle: Exhalation

In terms of human respiration, the act of expelling air, known as exhalation (or expiration), operates on the principle of pressure gradients. During expiration, the pressure within the lungs exceeds that of the surrounding atmosphere. Under normal conditions, quiet breathing involves passive exhalation and is free of muscular contractions. This is because the exhalation process is driven by the natural elastic recoil of the lungs and chest wall, both of which have an inherent tendency to...
3.5K
Compact Bone01:27

Compact Bone

Most bones contain compact and spongy osseous tissue, but their distribution and concentration vary based on the bone's overall function.
Compact bone, also called cortical bone, is the denser, stronger of the two types of bone tissue. It is found under the periosteum and in the diaphyses of long bones, where it provides support and protection. The microscopic structural unit of compact bone is called an osteon, or haversian system. Each osteon is composed of concentric rings of calcified...
16.4K
Compacting Factor test01:22

Compacting Factor test

The compacting factor test is a method used to assess the workability of concrete. It is  especially suitable for concrete mixes containing aggregates up to one and a half inches in size. This test involves specialized equipment consisting of two truncated cone-shaped hoppers and a cylinder, all with polished interior surfaces to minimize friction.
The procedure begins by placing concrete into the upper hopper without any compaction. Once filled, the bottom door of this hopper is opened,...
576
Gas Exchange and Transport01:20

Gas Exchange and Transport

Gas exchange, the intake of molecular oxygen (O2) from the environment and the outflow of carbon dioxide (CO2) into the environment, is necessary for cellular function. Gas exchange during respiration occurs largely via the movement of gas molecules along pressure gradients. Gas travels from areas of higher partial pressure to areas of lower partial pressure. In mammals, gas exchange occurs in the alveoli of the lungs, which are adjacent to capillaries and share a membrane with them.
76.8K
Kinetic Molecular Theory and Gas Laws Explain Properties of Gas Molecules02:34

Kinetic Molecular Theory and Gas Laws Explain Properties of Gas Molecules

The test of the kinetic molecular theory (KMT) and its postulates is its ability to explain and describe the behavior of a gas. The various gas laws (Boyle’s, Charles’s, Gay-Lussac’s, Avogadro’s, and Dalton’s laws) can be derived from the assumptions of the KMT, which have led chemists to believe that the assumptions of the theory accurately represent the properties of gas molecules.
37.4K
Gas Laws: Boyle's, Gay-Lussac, Charles', Avogadro's, and Ideal Gas Law03:19

Gas Laws: Boyle's, Gay-Lussac, Charles', Avogadro's, and Ideal Gas Law

Through experiments, scientists established the mathematical relationships between pairs of variables, such as pressure and temperature, pressure and volume, volume and temperature, and volume and moles, that hold for an ideal gas.
76.9K