periodic control 中文意思是什麼
periodic control
解釋
周期控制-
The iterative learning control has been raised as a new control concept. by correcting the current control command using the previous system error data instead of the exact system parameters, iterative learning control can effectively suppress the vibration of the highly periodic system
迭代學習控制不需知道系統的具體動力學參數，只要系統運動具有一定周期性，它便能利用系統先前的控制經驗和輸出誤差來修正當前的控制信息，從而達到良好的控制效果。 -
Another is maximum allowable dispatching the effectiveness of flood control and actives. with the extension of hydrological observation data and accumulation of reservoir operation experiments, periodic analysis and research the reservoir design flood is basic of operating above two aspects
隨著水文觀測資料的延續和水庫運行經驗的積累，定期對水庫設計洪水進行分析研究是保證水庫實現上述兩大職責的基礎。 -
To overcome the first shortage chaos control technology is used to control a dc / dc converter from periodic state to chaotic region
為了克服上述不足（ 1 ） ，本文利用混沌控制技術來把工作在周期狀態的dc / dc變換器控制到混沌狀態。 -
The essential control mechanism is the periodic election of the principal officers of the legislative and executive branches.
基本的控制機能是立法和行政部門主要官員的定期選舉。 -
Optimal periodic control with the lowest operational cost by limiting total substrate discharge mass was studied. through adding new state variable and using supplement functions, the problem with restriction conditions was converted into nonrestriction problem. in addition, the dynamic searching method of optimal step coefficient was developed to modify the conventional gradient method, consequently the calculation problem of the multivariable optimal periodic control was able to be resolved better. it was found that the operational costs of optimal control under various initial states are distinctly different. a new concept of optimal control under optimal initial state was presented. it is pointed out emphatically that to the treatment system without optimal control condition, the suboptimal control with extensive practical value can be realized according to the results of optima control
著重研究了在限制有機物排放總量時，使其運行費用最低的最優周期控制問題.通過增加新的狀態變量和用補償函數法，將本課題的有約束條件問題化為無約束條件問題，並提出了最優步長參數的動態搜索法來修改傳統的梯度法，從而較完善地解決了多變量最優周期控制的計算問題.研究中還發現了不同初始條件下最優控制所需要的運行費用也大不相同，進而提出了最優初始狀態下最優周期控制的新概念，這對保證出水質量的同時進一步降低污水處理成本來說具有更重要的意義.本文還強調指出：對于尚不具備實現最優控制條件的處理系統，可根據最優控制的研究結果實現具有廣泛實用價值的準最優控制 -
Control and analyse the daily maintenance reports issued by the maintenance team. identify the periodic maintenance work and suggest modification to improve
分析每天的維修隊簽發的維修報告，檢查定期的維修工作，對工藝變更的提高提出寶貴的建議。 -
Glass in building - insulating glass units - factory production control and periodic tests
建築物用玻璃.隔熱玻璃裝置.工廠生產控制和定期試驗 -
Glass in building - insulating glass units - part 6 : factory production control and periodic tests
建築物玻璃.隔熱玻璃組件.第6部分:工廠產品控制和定期試驗 -
1 in most cases, periodic evaluation of test and control materials is necessary to determine the variation in magnitude and direction of property changes as a function of exposure time or radiant exposure
在大多數情況下，有必要定期評價試驗材料和控制材料，以測定（塗料）屬性改變在大小和方向上的變化.該變化是暴露時間或輻射曝露量的函數 -
For a plc network, the length of the mac layer frame is associated not only with the method used in media access control but also with the nature of the interferences, since it suffers from a variety of interferences which are non - periodic and asynchronous
對于plc網路，由於通道存在嚴重的非周期的異步脈沖干擾，其mac層的幀長度不僅與採用的介質訪問控制方式有關，而且與電力線上的脈沖干擾有關。 -
In addition to the familiar period doubling bifurcation scenario leading to chaos, a quasiperiodic route to chaos is also observed which occurs through an initial hopf bifurcation. the current chaos control methods are compared, the stabilization of unstable periodic orbits of this chaotic system is achieved by continuous feedback control method, the specially designed external oscillator which used as target motion orbit in continuous feedback control method is obtained directly from ihb method
對現有的混沌控制方法的優缺點進行了比較，利用混沌控制理論中的連續變量反饋控制方法，實現了系統混沌吸引子內部的不穩定周期軌道的穩定化，對齒輪傳動系統進行了有效的混沌控制，並對連續變量反饋方法的結果進行了分析，包括噪聲的影響和方法的改進。 -
Next we study the logistic model with both state - dependent delays and continuous delays and feedback control. with the help of coincidence degree theory, some new results for the existence of the postive periodic solution of the system are obtained. also, by constructing suitable lyapunov functional, some sufficient criteria for the uniqueness and globally asymptotic stability of positive periodic solution are established
第二部分研究同時具有狀態依賴時滯和連續時滯的反饋控制logistic增長模型，利用重合度理論研究其正周期解的存在性問題，得到了該系統周期正解存在的充分性條件；通過構造適當的lyapunov泛函得到保證該系統存在全局穩定周期解的充分性條件。 -
At first, a method for controlling chaos is studied, which is based on phase switching modulation. the n - scroll chua ' s circuit is controlled to its fixed point as well as periodic orbits by using switching modulation on one its phase. its mechanism of control is analysed using the change of the max lyapunov exponent when the system is controlled
首先，通過對多渦卷蔡氏電路中非線性特性函數的相位進行開關調制，把多渦卷蔡氏電路由混沌狀態控制到其平衡態和周期軌道，並用控制后系統的最大lyapunov指數隨時間的轉變闡述了其控制機制。 -
In if the parameters of the friction model are unknown or unprecised, and the motor torque wave is periodic, the repeat - study control technique is used. we discuss the stable condition when introducing the technique into the system, and have a low - pass filter to ease the stable condition
針對摩擦模型參數未知或不精確的情況以及周期性的電機力矩波動，提出了重復與迭代學習控制方法，討論了採用重復控制后系統的穩定性問題，並得到了相應的穩定條件。 -
A circuit that provides periodic signals to control and synchronize other circuits
一種提供周期性信號的電路，用於控制和同步其它電路。 -
On basis of above researches, the multi - periodic log - optimal portfolios models with the risk control of var and cvar were researched further, and the properties of the existence and uniqueness of the optimal solutions of the two models were proved and other properties of the two models were discussed too
進一步提出了多周期var 、 cvar風險控制的log ?最優資產組合模型，研究了其最優解的存在性、唯一性和模型的有關性質，並給出了數值計算。 -
Glass in building - insulating glass units - part 6 : factory production control and periodic tests ; german version en 1279 - 6 : 2002
建築物用玻璃.絕緣玻璃組件.第6部分:工廠生產控制和 -
Exciting results are obtained when the presented control algorithm are applied to the structural vibration with periodic and pseudo - periodic disturbances
此種方法，對于周期擾力及擬周期擾力激起的結構振動響應都有很好的控制效果。 -
In 1995, the cuhk - pwh diabetes care team pioneered a quality improvement programme which involves periodic assessments to document the risk profiles and metabolic control of patients referred to the diabetes clinic
隸屬威爾斯親王醫院的糖尿護理小組， 1995年率先推行醫療質素改善計劃，當中包括為糖尿專科診所覆診的病人作定期的病情控制及相關風險評估。 -
By means of the proposed reinforcement learning algorithm and modified genetic algorithm, neural network controller whose weights are optimized could generate time series small perturbation signals to convert chaotic oscillations of chaotic systems into desired regular ones. the computer simulations on controlling henon map and logistic chaotic system have demonstrated the capacity of the presented strategy by suppressing lower periodic orbits such as period - 1 and period - 2. meanwhile, the periodic control methodology is utilized, the higher periods such as period - 4 can also be successfully directed to expected periodic orbits
該控制方法無需了解系統的動態特性和精確的數學模型，也不需監督學習所要求的訓練數據，通過增強學習訓練方式，採用改進遺傳演算法優化神經網路權系數，使之成為混沌控制器，便可產生控制混沌系統的時間序列小擾動信號，模擬實驗結果表明它不僅能有效鎮定混沌周期1 、 2等低周期軌道，而且在周期控制技術基礎上，也可成功將高周期混沌軌道（如周期4軌道）變成期望周期行為。
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