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- THE TUNABLE DIODE LASER ABSORPTION SPECTROSCOPY FOR GAS CONCENTRATION MEASUREMENT 利用可调谐半导体激光吸收光谱技术对气体浓度的测量
- Gas concentration measurement 气体浓度测量
- The optical analysis method of gas concentration has advantages of large measurement range,high precision,untouched on-line measurement and so on. 气体浓度光学分析方法具有测量范围宽、精度高、非接触在线测量等优点。
- Through the gas absorption on the metal oxide surface, gas concentration change is measured. 通过气体吸附在金属氧化物半导体的表面,测定半导体电传导度的变化反映气体浓度。
- The elevated Gas concentration in patients with EGP could be correlated with Hp infection. 结论 Hp是EGP的重要致病因素之一 ,EGP患者Gas浓度升高与Hp感染有一定关系。
- The concentration measurement of novel water-soluble polymers used in EOR by means of ultraviolet spectroscopy is discussed. 通过实验验证了紫外光谱法可用于测定提高采收率用新型聚合物浓度。
- The instrument can confect continuously the multiple gas concentration and can be adjusted continuously. 该系统可连续配制、并供给浓度值连续可调的多元混合标准气体。
- In the certain diffusion time the relation of gas concentration and diffusion depth is parabolic. 得出在一定的扩散时间内，气体浓度与扩散深度之间为抛物线关系；
- Based on flow imaging technique,a new method for the discr ete phase concentration measurement of two-phase flow using capacitan ce-array sensor is proposed. 本文提出了一种基于流动成像技术测量两相流离散相浓度的新方法。该法以阵列式电容传感器为信息获取手段。
- The gas concentration was finally inversed by further processing the DOAS of the gas. 进一步处理得到气体的差分吸收光谱，从而反演出气体浓度；
- Introduced the constitution of the vertical concentricity measurement. 介绍立式同轴度测量仪的系统构成。
- In the EGP group, the Gas concentration is related to the Hp infection, P<0.01. Conclusion Hp is one of the major causes for illness. EGP组Gas浓度与Hp感染情况有关 (P <0 .;0 1)。
- In the tracking-mode, the instrument generates an increasing or decreasing rate of beeps, depending on the gas concentration detected. 在检测模式下，仪器根据气体含量来增加和减少频率不同的嘟嘟声。
- The most obvious difference of gas concentration occurs at the places above and under the burner plane, along the gas flow direction. 喷嘴平面上、下气体组成差别很大，沿气流方向越靠近炉膛出口，这种差异越小。
- This paper introduces a improved RBF Neural Network(RBFNN) for modeling with a improved arithmetic to fix on the parameter of latent node and apply it to a sand-slurry concentration measurement. 该方案充分利用了软测量的优点及神经网络的强分类能力,为沙浆浓度的测量提出了优良的方法,从而可以保证整个充填系统的可靠运行。
- An approximate formular to calculate the absorbing gas concentration profile from the radiation transfer equation and the transmissivity equation is derived. 推演得到由辐射传递方程和透过率方程求解吸收气体浓度分布的近似公式.
- An iterative solution of the radiation transfer equation for the temperature profile is established assuming a known absorbing gas concentration distribution. 建立了通过已知吸收气体浓密分布;由辐射传递方程反演温度分布的迭代法.
- Abnormal gas concentration is correlative withabnormal pore fluid pressure, and there is also certain correlation between abnor-mal pore fluid pressure and acoustic transit time. 经研究，异常含气浓度与异常孔隙流体压力之间存在相关性，而异常孔隙流体压力又与声波时差之间存在相关性，且这种相关性早有定量描述。
- Methods:Serum creatinine and urinary RBP concentration measurement were performed in 30 LN patients and 100 controls.Urinary RBP activity were measured by ELISA. 方法：对100例正常人和30例LN患者进行血肌酐及尿RBP含量测定。
- Through building up the maths model of the relation between the circle air and gas concentration,expound the gas concentration changing and treatment measures in detail. 通过循环风时对瓦斯污染数学模型的建立,详细阐述了在各种情况下,瓦斯浓度的变化情况及治理措施。
