查询词典 pulsation

The power system forced oscillation introduced by anharmonic periodic disturbances is then discussed. The effect of complicated pressure pulsation, ballistic pressure pulsation and quasiperiodic pressure pulsation on the stability of power system based on a single machine infinite bus power system and multi-machine power system are analyzed respectively through simulation.

从理论上探讨非简谐周期性扰动下的电力系统强迫振荡，并通过时域仿真分析单机无穷大系统和多机系统中汽轮机复杂压力脉动、准周期压力脉动及冲击性压力脉动对电力系统稳定性的影响。

Based on fluid network theory ,the mathematical model of fluid pulsation attenuator was established.

采用流体网络理论方法对流体网络的特点和基本参数法进行分析，研究并建立一种流体脉动衰减器的数学模型，并通过脉动衰减器的阻抗及系统插入损失，对其性能进行研究。

Attune yourself therein to the pulsation of time as it is expressed in the movement around you.

在那里，让自己调谐向时间的脉动，因为它表达在你周围的运动里。

These functions are: low vibration, high vibration, pulsate and vibrate high pulsation and low pulsation.

这些职能是：低振动，高振动，脉动和振动脉动高和低脉动。

The dynamic spatial structure of fanning light is observed and which is responsible for the pulsation of the phase-conjugated light in the semilinear self-pumped phase conjugator.

标 签 光折变晶体半线性自抽运相位共轭器扇形散射光自脉动 photorefractive crystal semilinear self-pumped phase conjugator fanning light self-pulsation。

And pulsation damper used simultaneously, the pulsation damper to be an in between pumps and back-pressure Bellows Seal Valves valve in order to absorb the pump and back-pressure valve between the flow peak.

与脉动阻尼器同时使用时，脉动阻尼器应安在泵与背压阀间，以吸收泵与背压阀间的流量峰值。

Truck diesel-powered milking machines electromechanical TMR throughout the day mixed forage feed grain truck mixer vacuum pump milking machine suppliers jade milking cows piston machines, vacuum pump Milking Machine, loses Milking Machine, plumbing Milking Machine, tied Milking Machine, fish-bone milking equipment, machinery-off semi-automatic, electronic Automatic off-volume, the type of measurement, the measurement of complete sets of bottles Office milking equipment, wind Yang water machine, machine shed shutter, silage cutter, single-disc, Double-Mower, rubbing grinder, hydraulic binding machine, import dry, ring, ring vacuum pump oil, and provide the milking equipment Office using cleaning fluid, disinfectant lotion nipples, mastitis detector, the Ka-ma early pregnancy test paper, milk filter paper, calf feeding, medicine bath cups, vacuum pump oil, and repairs kicked suit, rangeland management software, sales agent sets internationally renowned brands milking equipment accessories: 1, Interpuls all products : L02 - pulsation, L80 - pulsation, LE20 electronic pulse, vacuum regulator, shedding ACR automatic, self-cleaning, Pulse Tester, lining milk, milk contrast, dual-pulse tube, and so on.

车载式挤奶机电机柴油动力铡草机 TMR全日混粮饲料搅拌车挤奶机真空泵供应商玉牛活塞式挤奶机，真空泵式挤奶机，提桶式挤奶机，管道式挤奶机，并列式挤奶机，鱼骨式挤奶设备，机械半自动脱落式，电子计量全自动脱落式，计量计式，计量瓶式成套挤奶厅设备，风力扬水机，大棚卷帘机，青贮铡草机，单盘，双盘割草机，揉搓粉碎机，液压打捆机，进口干式，水环，油环真空泵，并提供挤奶厅设备专用清洗液，乳头消毒润肤液，乳房炎测定仪，卡玛早孕试纸，牛奶过滤纸，犊牛喂奶器，药浴杯，真空泵油，修踢套装，牧场管理软件等，代理销售国际知名品牌成套挤奶设备配件：1、Interpuls全部产品：L02脉动器、L80脉动器、LE20电子脉动器、真空调节器、自动脱落ACR、自动清洗、脉动器测试仪、奶衬、奶衬、双脉动管等等。

This paper gives the analysis about the changeable law and the cause of the produced flow pulsation on common gear wheel pump and shows the unfavourable influence of the flow pulsation on hydraulic pressure system, the concrete measures of reducing the flow pulsation to be given.

对齿轮泵瞬时流量的变化规律以及产生流量脉动的原因进行了分析，指出了流量脉动对液压系统的不利影响，提出了降低流量脉动的具体措施。

Periodic fluid pulsation in aeroplane hydraulic piping could induce fluid-construction vibration and lead to fatigue damage. It is impossible to find the error sensor's optimization location because of the pressure standing wave, and the pulsation attenuation effect is not perfect when adopting pulsation attenuation at single point. For this reason, a distributed active control method of fluid pulsation was presented. To avoid stationary point in all aviation states, several fluid pulsation actuators and error pressure sensors were placed along the piping. The second fluid pulsation produced by actuators can counteract the primary pulsation brought by aviation piston pump and make the mean pulsation of whole piping minimum when adopting adaptive feed- forward control and the filtered-X least mean square algorithm.

针对飞机液压能源管路系统中的周期性流体脉动诱发流固耦合振动，导致管路疲劳损伤的问题，针对管路中存在压力驻波特性，在采用单点消振时寻找误差传感器最佳布局位置困难而引起脉动抑制效果不理想的缺点，提出了一种分布式流体脉动主动控制方法，即沿管路不同位置布置多个主动消振阀和误差压力传感器，在任意飞行阶段，避开压力驻波点，以误差压力传感器的脉动测量值为控制目标，采用一种针对周期脉动主动控制的自适应前馈控制法和多通道自适应滤波－X LMS算法，调整控制器参数，使主动消振器产生的次级脉动与管路中的初始脉动相互抵消，达到整个管路中的平均流体脉动最小的效果。

Figure 2 shows the jigging concentrate relations between content and ore feeding volume, when the diaphragm jig and the sawtooth pulsation jig are provided with different ore volume. Figure 3 shows the jigging concentrate relations between the sulphur recovery rate and ore feeding volume. As the test result shows, when the tailing content reaches approximately 7%, the diaphragm jig has 1.00 t / h · m2 feeding volume, which is also the maximum sorting efficiency in the test. As such, the sawtooth pulsation jig could choose 1.2 t / h · m2 feeding volume. As the test contrast of two groups shows, the sawtooth pulsation jigging concentrate contains higher-grade sulphur than the diaphragm jigging concentrate does.

图2为隔膜跳汰机及锯齿波跳汰机在不同给矿量的情况下，跳汰精矿品位与给矿量的关系，图3为跳汰机精矿硫回收率与给矿量的关系，试验结果表明，在尾矿品位接近7%，隔膜跳汰机给矿量为1.00 t/h·m2指标是隔膜跳汰机给矿量试验中选别效率最高的点，同理选择锯齿波给矿量为1.2 t/h·m2，将两组试验数据比较可以看出，锯齿波跳汰精矿含硫品位高于隔膜跳汰精矿含硫品位。

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。