侧流

HCN in sidestream smoke was captured by sodium hydroxide solution and determined by continuous flow analyzer.

建立了一种用稀氢氧化钠溶液吸收、应用异烟酸与1，3-二甲基巴比妥酸显色体系在连续流动分析仪上检测卷烟侧流烟气中HCN的方法。

The effect of each parameter on distribution of static pressure and pressure loss coefficient are found out.

为了解不同的雷诺数和出流比情况下各种因素对压力损失系数的影响，对有侧流梯形扰流柱通道端壁的静压和压力损失系数进行了实验测量。

A software based on this model has developed and been used in the design of 5 vapor heaters in the large granulated urea project.

提出了以风侧流阻最小为目标函数，传热负荷与迎风面尺寸为约束条件的双金属翅片管换热器优化设计模型，并开发出了相应的设计软件，成功地进行了在尿素大颗粒工程中五台蒸汽加热器的优化设计。

The study aims at the performance of a proton exchange membrane fuel cell with interdigitated flow field ,its influencing factors and feasible ways to improve it.

为研究交指流场质子交换膜燃料电池的输出性能，分析影响其性能的因素，寻找改善其性能的可行措施，探讨了使用交指流场流道的必要性和优越性，建立了包括质子交换膜燃料电池阴极/阳极侧流道、扩散层和催化层以及质子交换膜在内的完整的稳态、三维、两相数学模型。

The study aims at the performance of a proton exchange membrane fuel cell with interdigitated flow field, its influencing factors and feasible ways to improve it. The necessity and advantages of using interdigitated flow field were introduced. A three-dimensional, two-phase and steady-state numerical model was developed. The computational domain of the model consists of the flow channels, gas diffusion layers and catalyst layers in both anode and cathode sides and the PEM in PEM fuel cell.

为研究交指流场质子交换膜燃料电池的输出性能，分析影响其性能的因素，寻找改善其性能的可行措施，探讨了使用交指流场流道的必要性和优越性，建立了包括质子交换膜燃料电池阴极／阳极侧流道、扩散层和催化层以及质子交换膜在内的完整的稳态、三维、两相数学模型。

First, a full three-dimensional numerical model is developed, which considering not only the rib resistance to the species, but both the single- and two-phase flow and transport in the gas channels and diffusers at both the anode and cathode sides of PEM fuel cell. Two sets of boundary conditions, one for a conventional flow field and the other for an interdigitated one, are presented. A detailed discussion of the numerical techniques for the PEM fuel cell model is given with a flow diagram to provide an overview of the solution procedure using FORTRAN language.

该模型考虑了双极板上流道间的筋部对于反应气体传递阻力以及电流密度分布的影响，从而使模型具有三维特性；建模过程中进一步考虑了流道和扩散层中可能存在的液态水，从而将现有的单相流动模型拓展成为两相流动模型，因此，该模型可以同时模拟电池内部阴极、阳极侧流道和扩散层中两相流动的发生和分布情况；分别给出了平行流场燃料电池和交指型燃料电池的边界条件；详细讨论的三维模型的耦合求解算法和技巧；用实验数据验证的该模型的准确性。

Sidestream ratio was a key factor for the stable operation of two-sludge process.

侧流比是保证系统稳定运行的关键参数。

Which is more harmful,sidestream or mainstream smoke?

侧流烟和主流烟谁危害更大？

Based on the analysis of the compositon in mainstream smoke and sidestream smoke of cigarette, the method of reducing sidestream smoke of cigarettes was developed.

本文在分析了普通卷烟侧流烟气化学组成的基础上，系统研究了降低卷烟侧流烟气的方法。

According to the formation mechanism of sidestream smoke, a special cigarette paper was produced and used to control the release level of the sidestream smoke.

根据侧流烟气的产生机制，一方面研究制备了一种特殊的低侧流烟气卷烟纸，使侧流烟气在逸出烟支燃烧线之前被吸附和分解，控制侧流烟气的释放；另一方面，采用了一定量的膨胀烟丝和烟丝助燃剂，通过减少燃烧底物和使烟丝燃烧更完全来控制侧流烟气的产生。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。