最小滯后 的英文怎麼說
中文拼音 [zuìxiǎozhìhòu]
最小滯后
英文
minimum lag-
The first one : fitting together ultimate values of every dimensions in one dimension - chain one by one, educing many equations by itself, calculating results, and comparing these results of close dimension to find maximal and minimal values. the second one : projecting all dimensions on two preestablished axis, then providing the solutions to analyze whether every projected dimensions is increscent or decreasing, and synthesize the effect of every projected dimensions to close dimension, educing many equations by itself, at last calculating the result of close dimension. the third one : according to monte carlo analysis, getting every dimensions " values from every dimensions " tolerances at random time after time, simulating the actual circumstances of mass production using these dimensions, and calculating reasonable results of close dimension economically
鑒于這類系統在各大中小型企業的廣泛應用與相對滯后的研究水平，本文提出了三種新的能切實地解決目前尺寸鏈計算機輔助分析解算中存在的各種難題的設計方案，第一種方案將尺寸鏈中各組成環能取的極值組合起來，自動列方程組，求解每個組合情況下的封閉環尺寸，最後比較這些結果，得出封閉環的最大最小值；第二種方案將尺寸鏈各組成環向預先設定好的兩個方向投影，之後再分析各尺寸環投影分量的增減性，並且提供了組成環兩個方向上的投影分量增減性不一的復雜情況下的解決辦法，綜合組成環各投影分量的增減性，然後自動列出方程組，最後根據各組成環的投影分量以及所列的方程組來確定尺寸鏈封閉環的尺寸；第三種方案以蒙特卡洛法為原理，在尺寸鏈各組成環的取值范圍內使用計算機產生大量隨機數，模擬實際大批量生產中的零件尺寸分佈情況，以更經濟更合理的方式分析、計算封閉環尺寸。Modeling the general solid web continuous box girder and opening - in - web ( open web ) continuous box girder by ansys finite element modeling tool, node stress of governing section and corresponding shear lag values are analyzed. the solution is validated by comparing with variational results and modeling test values. based on the model, the section shear lag induced by dead load, prestress tendons and car loads under the most unfavorable condition and lateral symmetry are also approached. the influence of shear lag effect in double - level continuous box girder is considered with opening - in - web and the web location. the analysis indicates that double - level - load arouses less shear lag effect than one - level - load. when self - weight and prestressed tendons act on together, the shear lag effect on box girder take on a evidently change
基於所建立的有限元模型，本文分別對實腹和腹板開孔兩種箱梁在恆載、車載、預應力荷載作用時，各主要截面的剪力滯效應進行分析，通過施加縱向最不利的和橫向對稱的車輛荷載，研究實腹連續箱梁和空腹連續箱梁在承受雙層荷載和單層荷載時引起的剪力滯效應，並考慮腹板開孔及開孔位置對于連續箱梁剪力滯效應的影響。分析表明，雙層車載對于箱梁引起的剪力滯系數比單層車載的影響要小，對于箱梁中存在引起的剪力滯后現象有一定的改善作用。The analysis on the test result shows that the temperature distribution in cfst members caused by solar radiation is nonlinear, and the nonlinear character is most evident when center point of concrete gets its lowest temperature. the temperature of the center point is affected by various directions, especially the strong potential. in the side exposed to the sun in the afternoon, apart from the center point, temperature varies laggardly when the point of concrete in the same series is more close to the center
結果表明，日照作用下截面的溫度場為非均勻場，混凝土中心的溫度達到最小值時，截面溫度場的非線性特性最明顯，圓心點的溫度受各個方向溫度的共同作用，更多地受到強勢方向的影響;下午時處在向陽面的各系列，同一系列上混凝土各點溫度變化隨直徑縮小趨緩，越靠近圓心，溫度變化越緩和，對外部環境（包括氣溫與日照）的影響呈滯后現象越明顯;而在下午時處在背陰面的各系列除圓心點外，同一系列上越靠近圓心的混凝土測點，溫度變化越緩和。A series of reformation in urban gas industry and other public utilities has been carried out since 1990s, while compared with other industries, the extent of reformation in urban gas is the smallest and the high level of conflict is considerably obvious, the reformation is at a standstill
但是，從總體上說，城市燃氣等公用事業規制體制的改革力度和步伐相比其他行業是最小的，還處于比較滯后的狀態。同其他行業改革相比，我國城市燃氣產業深層次的體制矛盾還相當突出，改革還處于「膠著」狀態。At last, several means were listed to decrease or eliminate the hysteresis phenomenon of boiling heat transfer
最後總結出了幾種減小或消除沸騰熱滯后的方法。The proposed method has been applied to the analysis of water samples from several sources, the recoveries of the hexavalent chromium added to the samples are quantitative, and results found are satisfactory. based on oxidation of iodide to iodate and collection of ion - associate produced by tri - iodide with cation surfactant ctmab, and a subsequent spectrophotometric method is described for sensitive and selective determination of the resulting solution owing to dissolving the membrane and analyte in an organic solvent
在ph1 . 5的條件下，溴定量氧化碘離子最終生成的碘三離子，再與ctmab完全反應生成的離子締合物可以被膜富集，膜和富集物溶於小體積的有機溶劑后，加入0 . 1ml3mol l的硫酸抑制滯留在膜上的碘離子在有機溶劑中被空氣中的氧氣氧化而造成吸光度不穩定。The clamping diodes conduct only once in a switching period, and the resonant inductance current is smaller in zero state, leading to a higher efficiency and reduced duty cycle loss. the operation principle of the improved converter and the comparison with the original converter are analyzed in this paper. the effect of the blocking capacitor in series with the transformer or resonant inductance is discussed, and a best scheme is determined
本文將諧振電感和變壓器交換位置，使變壓器與滯后橋臂相連，這樣箝位二極體在一個開關周期中只導通一次，同時零狀態時諧振電感電流較小，有利於提高變換效率和減小占空比丟失，本文分析改進后變換器的工作原理，並與改進前的變換器進行對比，討論隔直電容在不同位置對變換器工作的影響，確定一種最佳工程方案。This thesis describes the three important methods for designing pid controller : imc - based method, frequency method and direct synthesis method. we respectively design the pid controllers for the first - order plus dead - time processes, second - order plus dead - time processes, non - minimum phase processes, integrating and unstable processes, then, performance assessment and robustness metrics are used to compare the pid controllers of the individual process
論文著重研究了pid控制器的三種重要設計方法：內模法、頻域法和直接綜合法，並從確定性性能指標和魯棒性性能指標的角度，比較這些設計方法在一階加純滯后、二階加純滯后、非最小相位、積分和不穩定過程pid控制器設計中的應用效果。Problems, which are the robust stabilization, the normal h control, the minimum sensitivity and mix sensitivity control, are discussed for the dead - time compensated upldt
討論了時滯補償后系統的魯棒穩定化、標準h _控制、最小靈敏度和混合靈敏度控制等問題。Expression of atnced3 driven by 35s promoter, rd29a promoter or kst1 promoter has greatly affected the growth and stomotal movement and drought tolerance in the transgenic tobacco plants. we observed the 35s : iatnced3 plants showed severe growth retarda - tion, and vd29a : atnced3 plants exhibited slight growth retardation, however we also observed the kst1 : : atnceds plants had a good growth under normal conditions
比較了35s 、 rd29a 、 kst1啟動子驅動atnced _ 3的表達對煙草生長和氣孔運動以及抗旱性的影響，結果表明35s轉基因植株明顯生長矮小，發育滯后； rd29a轉基因植株生長也比野生型慢一點； kst1轉基因陽性苗表型最好，在正常條件下生長旺盛。These results demonstrate that the effect of improving the bearing load of structure is very good by strengthening the member of eccentricity compression under pre - stress. the ultimate bearing capacity of strengthened column is closely related to the eccentricity distance. in the condition of eliminating the lagging strain of angle iron, the magnitude of pre - stress putting on the angle iron has litter impact on the ultimate bearing capacity of structure
偏心受力構件的有限元計算結果表明：預應力法加固偏心受力構件，其對結構承載力的提高效果顯著；加固柱的最大承載力與柱的偏心距有密切關系；在消除角鋼應變滯后的條件下，對角鋼施加預應力的大小對結構最終承載力無明顯影響。2. in chapter 2 and chapter 3, we respectively design pid controller using the three methods for stable processes, integrating and unstable processes. the pid controller performances of the individual process are compared with both deterministic performance and robustness
針對一階加純滯后、二階加純滯后、非最小相位、積分和不穩定過程，從確定性性能指標和魯棒性性能指標兩方面定量比較了同一種對象採用不同設計方法所得到的pid控制迴路的控制效果。We conclude from short - term dynamic equation ( error correction model ) that was built at last as follows : interest rate of marketing is influenced by itself from lag one quarter to lag four quarter, but influence is not quite prominence, coefficients of that model are all less than one
從最終建立的短期動態方程即誤差修正模型，可看到:市場化利率受其自身滯后一季度到四季度的影響，但影響均不十分顯著，模型系數均小於1 。市場化利率受gdp滯后一季度到三季度影響，且影響逐步減弱。Based on the minimum potential energy principal, the influences of three loads, which are concentrated force, trapezoidal load and sinusoid load, over shear lag of cantilever single - box - single - cell box girder are deducted and discussed, and a conclusion is reached, which has some instructive significance for designer to determine the sectional dimension and reinforcing bars ; the bending normal stress changes greatly as considering the shear lag effect
以最小勢能原理為基礎，推導並討論了3種形式的荷載：集中力、梯形荷載、正弦形荷載對懸臂單箱單室箱形梁剪力滯的影響，得出考慮剪力滯效應后彎曲法向應力有較大變化的結論，對設計人員確定截面尺寸、截面配筋具有一定的指導意義。Abstract : this paper discusses an adaptive control scheme on time varying parameter with pure delay and inertia. first, control system predicts parameter of the plant based on the parameters recognized, and then calculates control output according to minimum error control. by using this method, the system can maintain good performance when the parameters of the plant are varying. the steam generator system model is simulated, and a satisfied control effect is achieved
文摘:對具有滯后和慣性時變對象，提出了一種自適應預測控制方案，對對象參數進行預測，利用最小方差控制方法進行控制，確保系統在對象參數變化時仍保持優良的控制性能.根據本文提出的方法，對蒸汽爐系統蒸汽溫度控制進行了模擬，取得了較滿意的控制效果分享友人