查询词典 control tower

The invention relates to a dynamic matrix control system of high-purity distillation, which comprises distillation tower, intelligent checker, DCS system, superior host, and on-site bus, while they are connected. The control system uses tower product group as the object variable, and the reflux ratio and reboil ratio as control variable; the superior receives history temperature and pressure data from the DCS real-time database, via the predict control and dynamic matrix controller, to obtain the output values of present controller as reflux ratio and reboil ratio, then feedback said two values to DCS system, to function the distillation object. The invention can confirm the high-purity stable operation, with better dynamical control.

本发明公开了一种高纯精馏的动态矩阵控制系统和方法；系统包括：精馏塔、智能检测仪表、DCS系统、上位机和现场总线；所述精馏塔、智能检测仪表、DCS系统和上位机通过现场总线依次相连，实现信息流的上传和下达；本发明所涉及的控制系统采用塔双端产品组分为被控变量，回流比和再沸比为对应的控制变量；上位机从DCS实时数据库中获得历史的温度、压力等数据，通过推断控制环节和动态矩阵控制器环节，得到当前控制器的输出值-回流比和再沸比，再把控制器输出值返回给DCS系统，实现了对高纯精馏过程的双端产品高纯控制，对双端组分的高纯度平稳操作，具有很好的动态品质和控制效果。

Lastly, in accordance with the actual situations of the prototype structure of mosque pagoda, based on the similar relation of model experiments, a model structure of mosque pagoda with a similar coefficient of 1/10 is designed and fabricated. Earthquake simulating shaking table tests are performed on the model structure of pagoda in the cases the AB type passive control system with SMA dampers is erected or unerected. The leading earthquake responses like the relative drift at the top of the main tower and the small tower, interstory drift ratio, acceleration, and cracking process of the pagodas body etc. are studied. The operational behaviors involving the deformation capacity and energy dissipation capacity is tested for passive control system with SMA dampers under the earthquake excitation, and the corresponding control mechanism and regularity is also analyzed. Furthermore, the performance changes and protection effectiveness is comprehensively evaluated while the model structure of pagoda is seismically protected or not.

最后，根据光塔原型结构的实际情况，以模型试验的相似关系为基础，设计并制作了一个相似系数S，为1/10的光塔模型结构，并先后进行了未安装和安装A、B型SMA阻尼器被动控制系统光塔模型结构的地震模拟振动台试验，研究了模型结构在3种不同工况下，主塔顶部和小塔顶部的相对位移、层间位移角和加速度以及塔体开裂等光塔结构的主要地震反应，测试了SMA阻尼器被动控制系统在地震激励下的变形能力和消能能力等工作性能，分析了相应的控制机理和控制规律，并从总体上评价了光塔模型结构抗震保护前后的性能变化和保护效果。

The US ambassador to Haiti defended American efforts at the small airport, which was up-and-running 24 hours after the massive quake, even though the air traffic control tower was damaged.

美国驻海地大使为美国在机场的努力做出辩护，即使在机场控制塔被毁的情况下，机场仍在24小时运转。

Air traffic control tower - An ATCT is located at everyairport that has regularly scheduled flights.

机场管制塔台－有正规航班的每一个机场都有空中交通管制塔台，即地面指挥控制中心。

The objective is, based on the classification of airspace, to establish an En-route Control Area, Terminal/Approach Control Area, Airdrome Tower Control Area three-grade air traffic control areas;and then to establish an En-route Air Traffic Control Center, Terminal/Approach Air Traffic Control Center, Airdrome Tower Control Center three-grade air traffic control organization;To establish a reasonable backup mechanism and reduce the number of En-route Air Traffic Control Centers, finally to improve the quality of air traffic services.

本文系统地阐述了对管制区域重组战略目标所涉及的各子系统的考虑，重点分析了民航空中交通管理系统的运行体制、文化重组，并对战略实施过程进行了设计。空中交通管制区域的重组战略问题必须抛开部门利益的制约，站在国家利益的高度上，宏观长远地谋划。

Portland Air Traffic Control Tower in Portland, Maine.

缅因州波特兰波特兰空管控制中心塔台

A pilot of Bangkok Airways died and 40 others were injured after a passenger plane skidded off the runway and crashed into an air traffic control tower while landing in stormy weather on the Thai island of Samui Tuesday, the Bangkok Post reported.

据《曼谷时报》报道，4日，一架曼谷航空公司飞机在泰国苏梅岛着陆时滑出跑道，撞上一航空控制塔，造成机长死亡，至少40人受伤。

In the early hours of the morning a DC-6 radioed Townsville control tower that it was being "buzzed" by a UFO.

在清晨的DC - 6无线电汤斯维尔控制塔，这是被&横扫&的不明飞行物。

The airline says the last message was received by the control tower in Douala, Cameroon, soon after take-off.

KQ 507号航班在Ivory Coast出发，在周五当地时间晚上23：05（0005格林尼治）分离开Douala。预计是在06：15分抵达内罗毕

Aisimali Mashhad airport manager, said the airport control tower warned on several occasions, but aircraft pilots of aircraft on the ground that a patient adhere to landing in the fog.

马什哈德机场经理埃斯马利表示，机场控制塔曾多次发出警告，但机上飞行员以飞机上有病人为由，坚持在雾中降落。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。