环流

Mixed chlorotoluenes photo-chlorination experiments in a loop reactor were made, the effects of chlorine flow, temperature and p-/o- chlorotoluene initial ratio on mixed chlorotoluenes photo-chlorination were researched. The relations between the concentration of each component and time under different conditions were measured. The rule and the suitable process parameters of the photochlorination of p-chloromethyl benzene in the side chain were obtained.

本文在环流反应器中进行了邻、对氯甲苯混合光氯化反应试验，分别考察了不同氯气流量、不同氯化温度和不同对/邻氯甲苯初始配比对对、邻氯甲苯侧链光氯化反应的影响，实测了反应液中各组分浓度随时间的变化关系，得出了对、邻氯甲苯的侧链光氯化反应规律和适宜的工艺条件。

Then the flow in the curved pipe and reducing pipe was simulated through using CFD software, know that fluid passing curved pipe, reducing pipe can form secondary flow, vortex shedding, circumfluence, occur separation of boundary layer and periodic circulation flow, make the fluid pulsant, then cause the pipe vibrancy.

然后再应用通用CFD软件对具有弯曲和变径的热风炉管内流场进行模拟，得到当流体流过弯管、文氏管后形成了二次流、环流，并发生边界层分离和周期性旋涡脱落，它们会使后面的管流处于脉动状态，脉动状态的流体在管内流动时，会引起管道系统产生振动。

Taking full advantage of the ARM processor's multi-task procedure in the uc/os-II and uc/gui platform, real-time processing and user-friendly interface this design presents figures DC motor control program with logic uncircumflunce and reversibleness theory.

本设计充分利用了ARM处理器在uc/os-II和uc/gui平台上的多任务程序运行、实时处理及友好的人机交互并结合逻辑无环流可逆原理给出直流电机数字控制方案。

In the experiment focused on interannual changes, tripolar SST anomalies in North Atlantic are used to force GCM.

在强调年际变化的实验中，利用北大西洋地区三极型海温异常强迫大气环流模式，进行均衡实验和瞬变实验。

The tripolar structure SST anomalies over the North Atlantic, which also appears at the interannual scale with a spectral peak at 3—4 years, are mainly resulted from the barotropic driving of the NAO like atmospheric forcing, and thermal process plays a dominantrole in this process. When the NAO is strong, the westerly weakens over the midlat itudes; both the sensible and the latent heat flux release from the ocean tend to decrease, which warms the ocean and leads to positive SST anomalies. Over the sub polar region including the Labrador Sea, a stronger NAO is associated with a deeper Icelandic Low; the high latitudes originated colder air then blows over the ocean surface, the air-sea temperature difference become larger, and the se n sible heat flux loss from the ocean increases, which subsequently leads to colder SST anomalies.

分析表明，模式中三核型SST异常的产生，主要来自大气的强迫，NAO增强，中纬度大洋上的西风减弱，海洋感热和潜热通量损失减少，中纬度大洋得到的净热通量增加，导致SST出现正距平；在包括Labrador 海在内的副极地大洋，NAO增强、冰岛低压加深，气旋性环流增强，来自高纬度的冷空气吹过洋面，海气温差加大，大洋的感热通量损失增加，SST降低。

It is found that the vertical velo city derived by the former is usually too weak while the later gets the distinct three dimensional convective structure of meso-scale system with strong vertical velocity.

研究发现，前一种方法得到的垂直速度偏小，分析出的中尺度对流系统不明显，后一种技术可以得到比较明显的三维中尺度环流结构。

Similarly, those for biodegrading ethanol are temperature of 25~30℃,pH of 5, flux of 0.06m3/h, and the maximal elimination capacity of 712.9g/m3 reactor/h . Moreover, the reactor for degrading ethyl acetate or ethanol is also stable in the long operation.

气升式环流生物反应器降解乙醇的优化条件为：温度范围为25～30℃，pH值为5，进气流量为0.06m3/h，反应器的处理能力最大为712.9g乙醇/m3 /h，且连续长时间的操作，反应器一直处于稳定的处理状态。

One can easily find that from the experimental results: the course, in which ethyl acetate or ethanol degraded in bioreactor, is "reaction limited". The optimal conditions for biodegrading ethyl acetate are temperature of 25~30℃,pH of 7, flux of 0.05m3/h, and the maximal elimination capacity of 472.23g/m3 reactor/h .

气升式环流生物反应器降解乙酸乙酯的优化条件为：反应器内温度25~30℃，pH=7，进气流量为0.05m3/h，处理能力最大为472.23g/m3/h，且连续长时间的操作反应器的稳定性一直很好。

According to this investigation based on absorption of CO〓 with dilute Na〓CO〓 solution in tubes with K-type and H-type static mixing elements, an external loop ALR with K-type static mixing elements was constructed and tested in the pilot scale as the reactor for replacing the traditional carbonating tower of chemical plant.

在实验室对K型、H型和O型反应器进行了稀纯碱溶液吸收混合气中的二氧化碳的研究基础上，又在工厂进行了K型气升式外环流反应器用于氨水吸收混合气中的二氧化碳生产碳酸氢铵的实验，以取代现在普遍使用的鼓泡式碳化塔。

The fifth typhoon named HaiTang landed in Fujian in 2005, then it moved to northwest. During this movement, there was a mesoscale convective cloud increasing quickly, within the periphery of cloud cinctures of typhoon connected with tropical convergence cinctures. And the MCS caused heavy rainf all in the eastern and northern part of Wenzhou, which made the more dangerous weather than typhoon. In a word, it was important to research the developmental mechanism of MCS, for the new discovery could contribute to forecasting rainstorm caused by the landing typhoon in the future.

2005年05号台风&海棠&登陆福建后，在外围云系里有个明显发展的中尺度对流云团经过温州东部及北部地区，引起了强降水，从而造成比热带风暴环流本身更具破坏力的强烈天气，因此研究台风内中尺度对流系统的发展机制能够为预报台风灾害提供依据。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。