您要查找的是不是：
- Photoacoustic spectrometry (PAS) is a new method for trace gas detection based on the photoacoustic effect, which has high sensitivity, high selectivity and large dynamic detection range. 光声光谱技术是基于光声效应的一种新型微量气体检测技术，具有灵敏度高，选择性好，动态检测范围大等优点。
- A CO-overtone Laser Based Photoacoustic Spectrometer for Trace Gas Detection 基于泛频CO激光器的微量气体光声光谱仪
- A Line-by-line Trace Gas Absorption Model and Its Application in FTIR Gas Detection 逐线积分气体吸收模型及其在FTIR气体检测中的应用
- Trace gas detection 痕量气体检测
- We design a microsensor array to improve the effectiveness of trace gases detection，and a hardware circuit is designed based on AT89S52 MCU to control the dynamic detection； 为提高微量气体检测的有效性，设计了微型传感器阵列，以AT89S52单片机为控制核心设计了动态检测控制电路；
- The fixed gas detection system with automatic self test. 具有自我自动校正功能的固定式气体侦测系统.
- Non-dispersive Infrared (NDIR)spectroscopic technique based on Lamber-beer law is used to detect trace gas in air.In the Lamber-beer law,approximation absorbance is linear to gas concentration. 针对城市痕量污染气体检测中,所测气体浓度低、吸收弱,采用两点标定和高浓度标气定标造成吸收曲线误差增大的问题,本文提出了采用低浓度标气、多点定标的方法来获得吸收曲线的方法来建立吸收方程。
- Carbon dioxide is inexplicably a mere trace gas when it should be the bulk of the air, as it is on other planets. 令人费解的是，二氧化碳理应像在其他行星那样成为大气的主要成分，却仅仅是一种示踪气体。
- I've devoted my sabbatical to greenhouse trace gases. 我为了这温室示踪气体 已经牺牲了我的休息日。
- Moreover, aerosol can cause serious atmospheric pollution by way of absorbing or dissolving trace gas of atmosphere. 另外，气溶胶中的固态粒子能够吸附大气中的微量气体，液态粒子能溶解微量气体，它们在化学反应后生成新的物质微粒，会造成严重的大气污染事件。
- N2O, as a trace gas in the atmosphere, could cause greenhouse effect and damage the ozone lay in stratosphere. 氧化亚氮(N_2O)是大气中一种痕量气体，它具有产生温室效应和破坏平流层臭氧的双重作用。
- According to the Beijing Youth Daily, the mine failed to install a gas detection system and explosives were stocked in a storeroom underground. 据北京青年报，煤矿没有安装瓦斯检测系统和爆炸物被放在一个地下库房。
- A new method applied to quantitative analysis of trace gas by three-step isotope dilution mass spectrometry (IDMS) based on technology of sizes-balls is presented. 提出了一种适用于微量气体定量分析的大小球三步同位素稀释质谱法,并给出其实验模型和不确定度理论分析结果。
- The data fusion concept is introduced and the Dempster-Shafer evidence deduction is described and applied to oil and gas detection. 信息融合是现代信息技术与多学科交叉、综合、延拓产生的新系统科学研究方向。
- Common photoacoustic gas detection model is not suitable for fire warning because of poor real-time performance and high wavelength qualifications. 摘要普通光声气体探测模型因其实时性能差及波段要求高而不适用于火灾报警系统。
- It is informative to contrast this with the observed values of various trace gases in the atmosphere. 这一值与观测到的大气中各种微量气体值作一比较是有益的。
- In view of many issues from the present gas detection systems,a kind of multi-stage monitoring &management system frame for the coal mine gas safety is designed. 针对目前使用的煤矿瓦斯监测系统存在的种种问题,设计了一种矿井瓦斯远程多级监控监管网络系统构架平台。
- Behaviors of harmonic signals in wavelength modulation spectroscopy (WMS) for gas detection with Lorentzian line under high absorption strength are investigated. 基于洛伦兹线型近似，研究了高吸收强度下波长调制吸收光谱中谐波信号的行为。
- These trace gases are not detectable by smell in any but the most heavily polluted atmosphere. 这些微量气体除了在污染最严重的大气外，是不能凭嗅觉察觉到的。
- The requirements and principles of using photoacoustic gas detection technique in fire detection area are discussed and an unusual photoacoustic gas detection system is presented. 将可检测极低浓度的某一气体的光声检测技术应用于极早期火灾气体产物的检测是一个新的尝试,将可能实现高灵敏度、高可靠性的火灾探测。
