time-variation造句
例句與造句
- Time - variation reliability analysis based on ultimate strength of corroding ship girders
考慮腐蝕影響的船體梁極限承載能力時變可靠性分析 - The time - variation reliability formula of the existing bridge in its life cycle is deduced based on markov process
基于馬爾可夫過程得到體現(xiàn)在用橋梁生命周期內(nèi)承載力可靠度時變規(guī)律的計算公式。 - The whole problem related to the time - variation of the load is completely solved by the proposed method , the core of which lies in the tva model structure
整個過程中，模型結(jié)構(gòu)的改進是其中的關(guān)鍵。大區(qū)電網(wǎng)負荷建模研究是從模型應(yīng)用角度研究對不同物理地點的負荷進行建模的問題。 - We tested the time - variation of means and volatility , results show that the time - variation of means is not obvious , but the time - variation of volatility is very clear
檢驗了均值、方差的時變性，結(jié)果表明均值序列的時變性不明顯，但方差西安理工大學(xué)碩士學(xué)位論文序列的時變性非常明顯。 - We introduced some calculated methods of var with static and unconditional distribution , and analyzed the time - variation of volatility using arch model and its general forms detailsly
首先介紹了一些靜態(tài)、無條件分布下的var計算方法，在此基礎(chǔ)上，利用arch及其模型對方差的時變性進行了細致分析。 - It's difficult to find time-variation in a sentence. 用time-variation造句挺難的
- The electromagnetic field theory and the variation method is applied to found the 2d mathematics model during the process of starting of the induction machine with compound cage rotor . the dispersion , element analyse and collectivity composing of time - variation field are given
利用電磁場理論和變分法建立了復(fù)合籠條轉(zhuǎn)子感應(yīng)電動機起動時二維電磁場的數(shù)學(xué)模型，給出了正弦時變場單元分析過程和離散格式以及最終的總體合成方程。 - Abstract : according to the characterestic of resistance furnace temperature control , temperature rising one - way control , large time delay and time - variation of parameter , using method of fuzzy compositional rule of inference establish fuzzy model and design fuzzy cntroler . in order to increase control system precision , it gives a fuzzy variable k , and sets parameter self - adjusting fuzzy control system . this system can on line self - adjusting controller parameters according to the error and variations of the error . it makes the system steady precision improved
文摘:根據(jù)電阻爐溫控制的特點，即只有升溫單向控制、滯后較大且具有參數(shù)時變性，利用模糊推理合成法建立模糊模型并進行模糊控制器設(shè)計，為提高模糊控制的精度，引入模糊變量k ，構(gòu)成參數(shù)自調(diào)整模糊控制系統(tǒng).該系統(tǒng)可根據(jù)誤差和誤差變化在線自動調(diào)整控制器參數(shù)，使系統(tǒng)的穩(wěn)態(tài)精度得到改善 - Because every process are classical time - variation system whit multivariable , long delay time , nonlinear and destabilization and every process has themselves special requirements , considering of their common features the paper write out a three - level intelligence control system which give each process suitable methods
對中藥生產(chǎn)過程各工段控制方法的研究是本文的重點,由于中藥生產(chǎn)的各主要工段都是典型的多變量、大時延、非線性、帶擾動的時變系統(tǒng),并且中藥生產(chǎn)過程各工段均有其特殊工藝要求。 - The dissertation proposes originally the idea of decomposing the time - variant load to solve this problem . first , the time - variant load is decomposed into the time - variant load characteristic and the time - variant load model due to the modeling method . second , the multi - curve approximation method is proposed to identify the load parameters , which to a great extent , reduces the effects on the time - variation of the load model from modeling method
針對負荷的時變性，論文首次提出了將負荷時變性分解的思想，首先將負荷的時變性分解為負荷特性的時變性和由建模方法引起的負荷模型的時變性，然后提出了多曲線擬合參數(shù)辨識方法，很大程度上消除了建模方法引起的負荷模型的時變性。 - Then , time - variant load characteristic is decomposed and the tva load model structure is proposed to reduce the effects on the time - variation of the amplitudes of the load . finally , the group algorithm and hypothesis testing strategies are applied to solve the problem of the time - variation of the load components
進一步對負荷特性的時變性進行分解，提出了tva負荷模型結(jié)構(gòu)以消除負荷幅值大小時變性的影響，最后，采用分組算法和假設(shè)檢驗的工程應(yīng)用策略，解決了負荷組成成分的時變性問題，從而最終從一定程度上解決了負荷的時變性問題。 - The transverse stiffness limitation index ? the permissible ultimate width / span ratio b / l of the continuous steel truss girder of railway bridge is analyzed in accordance with the analytic theories of random vibration of train ? bridge time - variation system and the required derailment coefficients and comfort of drivers and passengers in train running through the bridge . the limitation index in question may be referred to in the design of the continuous steel truss girders of railway bridges
基于列車-橋梁時變系統(tǒng)隨機振動分析理論，按照橋上列車脫軌安全系數(shù)和司機、旅客舒適度的要求，對鐵路連續(xù)鋼桁梁橋橫向剛度限值-橋梁容許極限寬跨比b / l進行了分析，對鐵路連續(xù)鋼桁梁橋的設(shè)計具有一定的參考作用。 - But in analyzing the dynamic characteristics of rolling mill , we find that the system exists nonlinear uncertainty and slow time - variation , which are caused by nonlinear mode and random disturbance . this leads to the approximation of the practical system of the model and parameter and it is difficult to construct the accurate mathematical model . therefore , the routine controlling method is n ' t used any longer
然而，在分析軋機的動態(tài)特性中發(fā)現(xiàn)，由于位置內(nèi)環(huán)的模型中存在非線性元件，系統(tǒng)受到過多外界擾動的影響致使系統(tǒng)中存在非線性、不確定因素及慢時變參數(shù)的現(xiàn)象，推導(dǎo)出的模型結(jié)構(gòu)和參數(shù)只是實際系統(tǒng)的一個粗糟近似，難以建立精確的數(shù)學(xué)模型，此時，常規(guī)控制方法已不再適用。 - Because return of chinese security market is non - normal distribution , so we use garch - t model which can describe the time - variation of volatility and the high - peaked and heavy - tailed characteristics of return to calculate var value of market index . from empirical results we know that this model is efficient
考慮到中國證券市場收益率序列分布的非正態(tài)性，本文使用了既能描述方差時變性又能反映收益率分布的尖峰、厚尾特征的garch - t模型計算市場指數(shù)的var值，實證結(jié)果表明該模型是有效的。 - According to the characterestic of resistance furnace temperature control , temperature rising one - way control , large time delay and time - variation of parameter , using method of fuzzy compositional rule of inference establish fuzzy model and design fuzzy cntroler . in order to increase control system precision , it gives a fuzzy variable k , and sets parameter self - adjusting fuzzy control system . this system can on line self - adjusting controller parameters according to the error and variations of the error . it makes the system steady precision improved
根據(jù)電阻爐溫控制的特點，即只有升溫單向控制、滯后較大且具有參數(shù)時變性，利用模糊推理合成法建立模糊模型并進行模糊控制器設(shè)計，為提高模糊控制的精度，引入模糊變量k ，構(gòu)成參數(shù)自調(diào)整模糊控制系統(tǒng).該系統(tǒng)可根據(jù)誤差和誤差變化在線自動調(diào)整控制器參數(shù)，使系統(tǒng)的穩(wěn)態(tài)精度得到改善 - In this paper , based on the characteristics of force and deformation of pars , the time - variation of the elastic coefficient of fulcrum in the calculation model of pars is analyzed and studied ; and the lessening of rigidity coefficient of elastic fulcrum , which is caused by the continual bottom soil resilience beside the piles and the increase of excavation depths during different steps , is discussed
摘要根據(jù)樁錨支護結(jié)構(gòu)的受力和變形特點，研究分析了樁錨支護結(jié)構(gòu)計算模型中支點彈性剛度系數(shù)的動態(tài)時變性；討論了隨樁內(nèi)側(cè)坑底土的持續(xù)反彈以及不同工況下隨著基坑開挖深度的逐漸增大，進而導(dǎo)致彈性支撐剛度系數(shù)的減小的變化規(guī)律。