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- mixture gases detection 混合气体检测
- 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.
- The PEMFC performance showed a reduction trend in the order of pure H2, reformate gas and mixture gases. 单电池试验表明,微量的甲醇或二甲醚对电池未发现明显的影响。
- The mixture gas of N_2,CD_4 and He(or D_2) is used in DCN laser. The laser output power is 0.2W at the 1.54THz. 工作气体为N2;CD4和He(或D2)的混合气体;在1.;54THz的连续激光输出功率大于0
- Objective: To observe the function of nitrous oxide mixture gas in labor and analyse its result. 目的:观察氧化亚氮混合气体在分娩过程中的作用,分析其分娩结局。
- The influence of the peaking capacitor and the pressure of mixture gas on the performance of UV preionized pulsed HF laser is investigated. 研究了气体组份和峰化电容对紫外光预电离脉冲hf激光器性能的影响。
- Fe-Mo,Co-Mo and Ni-Mo bimetallic nitride catalysts were prepared by temperature programmed nitridation with Fe-Mo,Co-Mo and Ni-Mo oxide precursors under N2-H2 mixture gases. 以氢气和氮气的混合气体为氮化气体与铁钼、钴钼及镍钼双金属氧化物进行程序升温氮化反应合成了铁钼、钴钼及镍钼双金属氮化物催化剂。
- Fe-Mo, Co-Mo and Ni-Mo bimetallic nitride catalysts were prepared by temperature programmed nitridation with Fe-Mo, Co-Mo and Ni-Mo oxide precursors under N2-H2 mixture gases. 摘要以氢气和氮气的混合气体为氮化气体与铁钼、钴钼及镍钼双金属氧化物进行程序升温氮化反应合成了铁钼、钴钼及镍钼双金属氮化物催化剂。
- 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。
- Thus, the problem of how to improve GCB operation reliability can be solved by the meaning of applying mixture gas or heating SF6 gas. 为此,本文提出了采用混合气体或采用加热SF6气体的方法,以解决高压SF6断路器在低温下能够可靠运行的问题。
- 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。
- The influence of time , temperature, mixture gas composition and granulated pig iron size on decarbonization ratio has been stuided.The optimum decarbonization index is obtained. 研究了时间,温度,氧化气体成分和粒铁粒度对脱碳的影响,并找出了最佳脱碳条件。
- 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。
- 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。
- CoMo bimetallic nitride catalysts were prepared by temperature programmed reduction of CoMo oxides in flowing N 2 H 2 mixture gases, and effects of added cobalt on BET surface area of the products were investigated. 以 N2 - H2 为氮化气与钴钼氧化物进行程序升温反应制备了大比表面积的钴钼氮化物。
- The analysis of the mixture gas of O_2, CO, CO_2, NO, N_2O, NO_2 and C_3H_6 was done with an improved 102G model gas chromatograph, in which ECD, FID and 5A zeolite, 10%OV-101/Chromosorb W and G. 在改装的102G型气相色谱仪上;采用氢火焰离子检测器、电子捕获检测器和5 A分子筛、10%25OV-101/Chromosorb W、G.
- Carbon fibers coated with B4C were made by chemical vapor deposition (CVD) technique in flowing mixture gas of H2, BCl3 and CH4. The optimum conditions were obtained by the orthogonal method. 以CH4,BCl3,H2为原料气,采用化学气相沉积法(常压CVD)在炭纤维表面连续涂覆B4C,通过正交实验得到最佳涂覆条件;
- The desertation introduces the design procedure and configuration of the bomb, which includes the mixture gas preparation, heating, ignition, combustion pressure measurement systems, CCD camera and data aquisition system. 全面地介绍了该试验装置的定容燃烧弹,混合气配制系统,加热系统,点火系统,燃烧压力测量系统,高速摄像系统以及数据采集系统等子系统的设计原理、结构及其特点。 通过燃烧火焰照片对比可以看出,加剂后,燃烧速度加快,燃烧持续期缩短。