电堆

In Chapter four,,a nozzle flapper valve based on piezoelectric stacks was designed.

第四章在理论上提出了一种基于压电堆驱动器的喷嘴挡板式气体控制阀。

The flow control unit includes a plurality of mass flow controllers which are divided into a plurality of groups for the gas distribution of each channel; the humidifying unit is composed of humidifiers and shared constant-temperature oil bath, and the humidifiers are divided into a plurality of groups to humidify each channel; the signal acquisition unit is composed of a stress sensor, a temperature sensor, a humidity sensor and a data acquisition system; the temperature control unit heats the mono-cells or the electric piles to be tested of each channel through a plurality of ways, into which an external-cycle waterway is divided by a constant-temperature water tank; and the discharging unit adopts host plus module type electronic load to meet various test requirements through changing the combination of the modules.

流量控制单元含若干质量流量控制器分多组为每个通道配气；增湿单元由增湿器和共用的恒温油浴构成，增湿器分多组为每个通道增湿；信号采集单元由压力、温度、湿度传感器及数据采集系统组成；温控单元由恒温水槽通过外循环水路分多路给每个通道的测试单电池或电堆加热；放电单元采用主机+模块式电子负载，通过改变模块间的组合来达到不同的测试要求。

In this paper, the MEA of the DDFC was investigated, and the performance of the MEA was increased. A small passive DDFC stack was fabricated for room temperature applications.

本论文主要结合DME燃料的特性，针对DDFC的MEA进行研究，提高了电池性能，并设计研发了一种小型被动式DDFC电堆。

A new design of the thin-film thermopile infrared detector with a construction of two sides and TO-5 detector package is given.

介绍一种新设计的薄膜型温差电堆红外探测器。

The thermopile used to measure infrared energy from body radiation, a medical noncontact thermometer is developed in this paper.

利用温差电堆测量人体辐射的红外能量，研制医用非接触体温计。

Voltaic pile was the prototype of the battery, which changes the electrostatic study of the emergence of the state, so that people can have in-depth understanding of current.

伏打电堆是电池的原型，它的出现改变了静电研究的状态，使人们对电流能够有深入地认识。

Galvanic pile...电堆 voltaic pile ...伏打电堆 a collection of objects laid on top of each other

他在1800年前已成功發展出以穩定電流製造、稱為伏打堆的早期電池。。。。

The invention relates to a processing method of preventing frostbite and restarting of hydrogen electric pile, whose characteristic lies in the treating processes includes: When the electric pile turns off, the unsaturated fuel gas or the nitrogen, through the circle boast to clean the dissociate water; drying the MEA film module to keep the water content below the stipulated temperature which does not ice up; then the recycle gas through a wet exchanger to dry and the dried gas is continue used in the dry pile step; when restarting the electric pile, the recycle gas must heats then through the pile to elevate the temperature, then heats the fuel gas and the oxidant of the gas source, through the weting of the wet exchanger enters to the calefactive pile, enhances the wet step of the film module in the pile, starts the power output of the pile.

本发明涉及一种氢电堆的防冻和重新启动时的处理方法，其特征在于处理过程包括：电堆停机时，将水蒸气不饱和的燃料气体或氮气，通过循环吹扫除去电堆的游离水；干燥其中的MEA膜组件，使膜组件含水量降低到规定低温下不结冰的程度；而后再令循环气体通过一个湿交换机将循环气体干燥，以及被干燥后的循环气体继续用来干燥电堆的步骤；在电堆重新启动时，须将循环气体加热后通过电堆，使电堆升温，然后再将气源的燃料气及氧化剂加热，通过湿交换机加湿后进入已升温的电堆，提高电堆中膜组件的湿度的步骤，开始电堆的功率输出。

A new method for the simultaneous determination of salicylic acid, cinnamic acid, ferulic acid and vanillic acid by stacking-non-aquous-capillary electrophoresis has been proposed.

建立了同时分离测定水杨酸、肉桂酸、阿魏酸和香草酸的电堆集富集-非水毛细管电泳的新方法。

The simulation of natural gas pre-reforming solid oxide fuel cell is realized using Matlab software.

建立了预重整器和直接内部重整固体氧化物燃料电池电堆的数学模型，验证了电堆模型的有效性。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。