气体处理

Selecting Distributed Feedback Laser Diode as light resource and the gas absorbing cell with fiber pigtail as its sensor, and using lock in amplifier to distill signal and harmonic measure technology to process that distilled faint signals, we design an instrument of remote and on-line measuring acetylene.

选用分布反馈式半导体激光器作为激发光源，带尾纤的气体吸收气室作为传感器的探测头，以及锁相放大器来提取信号，并通过谐波检测技术对所提取的微弱信号进行处理，设计了一套远距离在线测量乙炔气体的监测仪器。

The production and basic characteristics of hydrogen chloride gas in the production process of chlorination paraffin wax are introduced.

介绍了氯化石蜡生产过程中副产品氯化氢气体的产生及基本特征，根据氯化氢气体的特性，用吸水法对废气进行处理，将其制成30%盐酸，所得盐酸可用于工业生产，具有良好的经济效益和环保效益。

Gas identity and concentration can be determined by monitoring the ionization voltage and discharge current of the gas. Gas ionization voltages of SWNTs were lower 30 voltages than MWNTs obtained by CVD, and after plasma treatment, the gas ionization characteristics of MWNTs were improved.

与化学气相沉积方法得到的直立式多壁碳纳米管相比较，旋涂法单壁碳纳米管薄膜电极的气体电离阈值电压要低30V左右，等离子处理对改善直立式多壁碳纳米管的气体放电性能有帮助。

The results of calibration of 4He in desorption system show that the correlation coefficient is more than 0.99 and the contribution of memory effect can be ignored. The contribution of ionized atom T(superscript +) for partial pressure of m/e=3 is very little and is determined according to I+≈0.01I(subscript T2)+, so the measurement of 3He can be done without interference of T(superscript +). The relationship between gases release rate and annealing temperature can be obtained after the data are smoothed and differentiated.

研究结果表明：四极质谱计标定解吸系统内4He的分压＜350 Pa时，其相关系数R＞0.99，且记忆效应的贡献极弱；离子态氚T对m/e=3组分分压的贡献可按I+≈0.01I(下标 T2)+确定，不干扰3He的测定；将气体解吸所得的积分数据经平滑并微分处理后可准确得到气体释放速率与退火温度的关系，即热解吸谱。

Changes of the contamination of malodor caused by H_2S from municipal landfill;2. Traditional malodor control methods are limitative technically and economically.

为控制某污水处理厂恶臭的污染，介绍了采用低温等离子体技术处理恶臭气体的技术原理和电源电压、电源频率和停留时间与降解效率的关系，用低温等离子体进行了分解特征恶臭气体氨气的试验，并从工程应用和试验研究方面说明了除臭设备的电参数、工艺流程。

When we detected SF_6 /Air mixtures in ppm level, the output signals were in microampere level.

本文中SF_6气体检测系统对ppm级SF_6气体的检测输出信号处于微安级，如何准确、快速的处理实验数据给出结果十分关键。

The quantitative multiple component gas concentration analyzer based on supporting vector machine has hardware part comprising gas sampling probe, connecting pipeline, spectrograph, data transmission line and computer; and software part comprising data pre-processing module and parallel supporting vector machine algorithm module.

本发明公开了一种基于支持向量机的多组分气体浓度定量分析仪，硬件部分由气体采样探头、连接管路、光谱仪、数据传输线及计算机组成。软件部分由数据预处理模块和支持向量机并行算法模块组成。

In the present study, tungsten oxide nanomaterials were synthesized by a modified plasma arc gas condensation technique. The effects of the plasma currents (70~90 A), chamber pressures (200~600 torr), production time（3~12 min）, oxygen partial pressure Ar:O2（1~6:1）and plasma including the hydrogen（0~10 %）on the preparation of tungsten oxide nanostructures were investigated. Pre-treatment on the tungsten oxide nanorods for surface modification was investigated by atmospherical plasma jet. The optical, filed emission, and gas sensing characteristics of tungsten oxide nanopowders were also examined.

本研究系利用电浆电弧气凝合成法来制备氧化钨奈米材料，分别探讨不同腔体压力（200~600 torr）、电浆电流（70~90 A）、制备时间（3~12 min）、氧分压Ar：O2（1~6：1）、电浆气含氢量（0~10 %）对於产物的形貌、相态影响，并使用常压低温电浆设备对氧化钨奈米棒进行表面处理，且针对氧化钨奈米材料的光学、场发射以及使用自行组装气体感测量测设备量测其气体感测特性。

However, if the amplitude excessed 90%, the mounts of larger bubble increase as the increasing time.

另外，选择惰性气体SF6作为微泡内气体，设计了基于两种非离子表面活性剂（Span 60和Tween 80）的包膜超声造影微泡的膜材料组成，使用声振法制备得到表面活性剂包膜的超声造影微泡；对制备过程中的声振条件进行优化，结果表明总体上振幅越大，处理时间越长，声振后溶液的总体积增加得越多，即产生的微泡量越大，并且平均粒径越小，但当声振幅度增大到90%时，随着声振时间的延长，主要增加的是大微泡的量，有效微泡的量无明显增加，因此最佳的声振条件选择为振幅90%，声振时间60s。

The influences of different pretreatments (the total fish and the fish without bowels), different kinds of air packaging (air, vacumn and modified atmospheres) and modified atmospheres packaging with various gas proportions (30%CO_2/70%N_2; 60%CO_2/45%N_2; 75%CO_2/25%N_2) on the quality and shelf-life of fresh large yellow croakers preserved under 4℃±1℃were evaluated here by sensory evaluation and microbial, physical, biochemical analysis.

本文通过感官评定、微生物、物理和生物化学分析，评价不同预处理；不同气体的包装；不同气体比例的气调包装(30％CO_2/70％N_2；60％CO_2/45％N_2；75％CO_2／25％N_2)对养殖大黄鱼在冷藏(4℃±1℃)条件下保鲜效果的影响。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。