predicator 中文意思是什麼
predicator
解釋
謂語詞-
Results : ( 1 ) there is difference in ash scores between different specialty students, different academy students and college students. ( 2 ) self - deprecation, uncertain personal control and avoidance failing performance goal are significant positive predicators of academic self - handicapping, and mastery goal is a significant negative predicator of academic self - handicapping
調查顯示： （ 1 ）大學生學業自我妨礙存在專業、學歷差異； （ 2 ）避免失敗成績目標、不可控制感、自我貶低對自我妨礙有顯著的正向預測作用，掌握目標有顯著的負向預測作用。 -
Base on the predicator - corrector and automatic step size contro1 technique, combined with contingency screening and selection, the proposed method possesses high computation efficiency. the above mentioned methods are illustfated by the leee 30 - bus test system, wscc 9 - bus tcst system and the northwe
上述各方法分別採用ieee 30節點、 wscc 9節點試例系統和我國西北108機557節點實際系統進行了模擬訓算，計算結果驗證了有關方法的正確性和可行性。 -
Power bond graph is used to established the bond graph model of the lifting and dropping of hydraulic pile hammer and state space equation in the paper for hydraulic pile hammer is perplexing nonlinear system. in order to attain the graph that pressure, position, velocity, acceleration vary with time in the course of driving pile simulation procedure solving state space equation is designed on the basis of combining four - order runge - kutta method with predicator - corrector method, dynamic simulation of the hydraulic system is studied in matlab 6. 5. it is convenient to analyse dynamic characteristics of the hydraulic syste m, beneficial to the design and parameter optimization of the hydraulic system. in the final part of the paper, under detailed analysis of the control characteristics for double - acting hydraulic pile hammer with double cylinders, control system based on the programmable logic controllers founded on technology of modern compute is designed
由於液壓打樁錘液壓系統是一個復雜的非線性系統，本文採用功率鍵合圖法建立液壓打樁錘上行、下降的鍵合圖模型和狀態空間方程，通過四階龍格?庫塔法和預估?校正法相結合編制了模擬程序對狀態空間方程求解，在matlab6 . 5中進行液壓系統的動態模擬，獲得液壓打樁錘運動過程中壓力、位移、速度、加速度等隨時間變化的曲線圖。此曲線圖方便了對液壓系統動態特性分析，為液壓系統的設計和參數優化提供了有益的借鑒。最後，在深入分析雙缸雙作用液壓打樁錘控制系統的功能要求后，採用了以現代計算機技術為基礎的新型工業控制裝置? plc可編程式控制制器，設計出了雙缸雙作用液壓打樁錘的電器控制系統。
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