查询词典 time-base control

The mechanism is composed of two ball screws, U-type linear rails, linear bearings and flexible couplings. The permanent magnetic direct current motors are used as actuators. The rotary encoder is used to measure the angular position of the DC motor. The digital controller is implemented on the personal computer and a motion control card (EPCIO-6000). The objective of this thesis is to realize precise positioning control using a real-time motion control system on an X-Y table.

机械结构包括有滚珠导螺杆、U型线性滑轨组、线性轴承及可挠性连轴器等；致动器是采用永磁式直流马达(permanent magnetic direct current motor)；感测器是使用光学式旋转型编码器来量测马达旋转的角度；控制器则是以个人电脑为控制核心，搭配运动控制轴卡(EPCIO-6000)所组成。

Patients whose gastric emptying time exceeded control group by + 2 standard deviation could be included. At the same time, 15 health volunteers had no dyspeptic symptoms were enrolled in as control group.

以胃排空时间超过正常对照组+2标准差者为运动障碍样FD，并将其作为入选病例；同时选择无消化不良症状健康志愿者15例作为对照。

Ordinary students as the supplement control group were selected at random. 9g pyruvate calcium capsules were taken twice a day in supplement control and supplement and training group. At the same time, equipollent glucose capsules were compensated to training control group. The trail lasted for 21 days, during which athletes'training was normal.

根据体重将男子散手运动员均衡地分为两组：运动对照组(training control，简称tc组)和补充丙酮酸运动组(supplement control，简称sc组)，两组研究对象的运动等级及训练情况基本相同，每周训练20小时以上；将体院大学生作为补充丙酮酸对照组(supplement and training，简称st组)。sc组和st组每天分两次补充9克丙酮酸钙；tc组补充等量葡萄糖，实验持续21天。

Simulation results show that the performance of the open-loop control system is poor when the model parameters change. The second system is designed via feedback linearization method. Since the path signal is introduced as feedback signal, the designed closed-loop control system improves the system robustness to the parameter perturbation. Simulation results verify that the closed-loop control system shows better performance than the time optimal control system.

前者侧重于时间最短的控制性能，但由于是开环控制，当出现参数摄动时，系统的性能会受到较大影响；后者由于引入了飞艇轨迹的反馈信号，因而相对提高了系统对参数摄动的鲁棒性，计算量较小，并且仿真结果证实了这种闭环系统设计方案可以抑制参数摄动带来的影响，与时间最优开环控制系统相比，显著提高了控制精度、改善了控制效果。

Servo controller is key part of antenna control system.In some servo controller,classic PID control algorithm is adopted. In order to improve precision of control system,the integral parameter has been turned too big to use because it will cause integral saturation which depress system performance.On the other hand,ISA bus is used to communicate between servo controller and main computer.ISA is low speed interface protocol,it cannot provide more data for complicated real time position control in servo controller.

伺服控制器是天线伺服控制系统的核心环节，经典的PID控制算法在整定时整定出的积分环节参数较大，很容易出现积分饱和，造成控制精度的降低；另一方面伺服系统中伺服控制器与主控计算机通过低速的ISA总线进行通信，无法满足控制器进行复杂的位置控制运算所要求的实时大信息量的数据传输。

The system can acquire the signal of real-time temperature on spot by data acquisition card, then analyze and process the signal in software platform. PID neural network control algorithm was used for the real-time temperature control on spot.

该系统通过数据采集卡对现场的温度进行实时采集，并由软件开发平台进行信号的分析处理和显示，然后使用PID神经网络控制算法对现场温度进行实时控制。

Methods 80 cases were divided into control group and test group with 40 cases respectively. Epidural catheter was left in test group, connected with "Tuoren" patient-controlled epidural analgetic pump with dicaine 100 mg+morphine 10～15 mg+droperidol 5 mg,which were dissolved into NS to 100 ml. LCP model was as follows:morphine 2～3 mg, background dosage: 2 ml/h, PCA 0.5 ml each time; The control group injected morphine 3 mg through epidural conduit each time to relieve spasm and pain according to the symptoms to observe and record the effects and side effects. Results Test group:39 cases were with remarkable effect, 1 cases was common.

将80例前列腺术后随机分为试验组与对照组各40例，试验组术毕保留硬膜外导管，接国产&驼人牌&一次性患者自控硬膜外镇痛泵，药液配方为丁卡因100 mg+吗啡10～15 mg+氟哌啶5 mg加入生理盐水至100 ml，LCP模式（负荷量：吗啡2～3 mg，背景量：2 ml/h，PCA 0.5 ml/次）；对照组据疼痛症状经硬膜导管推注吗啡3 mg/次解痉止痛，观察并记录术后解痉镇痛效果及不良反应。

The compatibility of both Gvirens and B.firmus was researched. The fermentation filtrate of Gvirens , under the concentration of 70%, had not distinct inhibitory activity to B.firmus, the biomass of B.firmus would decrease with above the 70% filtrate of Gvirens, but the fermentation filtrate of B.firmus had not inhibitive role to Gvirens. 7, The cooperation control of both Gvirens and B.firm to the pine needle blight was explored:(1) Pathogen inoculation happened prior to the bio-control treatment for 7 days, however, the disease index and control effect had not distinct differences in any treatments even if combination of the two antagonists, but the susceptibility for different kind of pine were different.(2)when antagonist and pathogen were inoculated at the same time, some control effect to the pine needle blight, including certain extent cooperation control of both Gvirens and B.firm were proved, but it wasn't distinct when two antagonists used separately, and the change of the antagonist concentration had little effect to the control effect.

G.virens与B.firmus对松赤枯病的协同控制显示：(1)预先接种病菌后(7天)再进行生物防治处理，不管那种情况，感病指数和防治效果在处理间差异不明显，浓度影响无显著差异，即使是两种生防制剂联合作用也未显著提高其防效，但不同树种间的感病性有明显差异；(2)领抗菌与病原菌同时接种，对松赤枯病有一定防治效果，两菌联合有一定的协同作用，两菌分别单独施用防效差异不显著，浓度变化对防效影响不大；(3)预先接种颇抗菌能显著提高防治效果，两菌联合处理防效更优，感病树种的感病指数可降至13一15，抗病树种的感病指数可控制在3%左右；在同一浓度下B.f1'r功US、叹叮厂即s间无显著差异，在同一领抗菌下，浓度愈高，防效愈高：松，(4)三种生防接种方式的平均效果分析表明，叹F行ens最高平均防效49.5%黑 B。

Time aeration control mode and time-temperature feedback aeration control mode are suitable for composting systems in China.

堆肥系统采用时间控制和时间—温度反馈控制的通风方式较为适合我国国情。

In the thermophilic stage, both the duration of high temperature and the distribution of pile temperature in Pile Ⅱ with time control aeration mode were better than those in Pile I with time-temperature control aeration mode.

在高温持续时间和温度分布均匀性方面，采用时间控制通风的堆肥方式优于采用时间-温度联合控制通风的堆肥方式，但过高的温度(60～70℃)不利于堆体中水分的去除和有机质的生物降解在高温堆肥阶段，通过改变通风时间，2种控制方式的堆肥过程均出现了2次高温期，这更利于堆肥的无害化。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失