象差修正 的英文怎麼說
中文拼音 [xiàngchāxiūzhēng]
象差修正
英文
correction of aberration-
But in the forepassed research, the people all abstracted the colloid in the water as the sphericity and explained it by the known theory of the colloid chemistry. moreover some people modified the result by the grain coefficient in the derivation of theory. but this assume had more difference on the observed phenomena in the experiment, so it was not perfect in theoretical speaking
關于絮凝的理論基礎在國外研究得比較多，但在過去的研究中，人們大都是將水中的膠體顆粒抽象為球形，用已有的膠體化學理論去加以解釋，並在理論推導中引入顆粒系數加以修正，這與實際實驗所觀察到的現象有較大的差別，從理論上說，是很不完善的。Franz had remained for nearly a quarter of an hour perfectly hidden by the shadow of the vast column at whose base he had found a resting - place, and from whence his eyes followed the motions of albert and his guides, who, holding torches in their hands, had emerged from a vomitarium at the opposite extremity of the colosseum, and then again disappeared down the steps conducting to the seats reserved for the vestal virgins, resembling, as they glided along, some restless shades following the flickering glare of so many ignes - fatui. all at once his ear caught a sound resembling that of a stone rolling down the staircase opposite the one by which he had himself ascended. there was nothing remarkable in the circumstance of a fragment of granite giving way and falling heavily below ; but it seemed to him that the substance that fell gave way beneath the pressure of a foot, and also that some one, who endeavored as much as possible to prevent his footsteps from being heard, was approaching the spot where he sat
弗蘭茲在那條廊柱的陰影里差不多躲了一刻鐘光景，他的目光跟隨著阿爾貝和那兩個手持火把的向導，他們已從斗獸場盡頭的一座正門里轉了出來，然後又消失在臺階下面，大概是參觀修女們的包廂去了，當他們靜悄悄地溜過的時候，真象是幾個倉皇的鬼影在追隨一簇閃爍的磷火，這時，他的耳朵里突然聽到一種聲音，好象有一塊石頭滾下了他對面的臺階，在這種環境里，一片肅落的花崗石從上面掉下來原是算不得什麼稀奇的，但他覺得這種石塊似乎是被一隻腳踩下來的，而且似乎有個人正向他坐的這個地方走過來，腳步極輕，象是竭力不讓人聽到似的。6. since the error in both the meteorological parameters and cooling load prediction is unavoidable, the online correction of prediction and offline optimization results is needed
無論是氣象參數預測，還是冷負荷的預測總難免出現偏差，這就需要對短期預測和離線優化結果進行在線修正。Abstract : iterative learning control is an effective approach to the control of processes that are repetitive in nature. in this paper, an open - closed - loop pi - type iterative learning control scheme for the precise tracking control of a class of discrete nonlinear time - varying systems over a finite time interval is presented. the scheme updates control input with tracking errors of both current and last iterations simultaneously. sufficient and necessary conditions which guarantee the convergence of the scheme are given and then proved with inductive method. finally, the conditions are verified with simulation results
文摘:對于具有重復運動性質的對象，迭代學習控制是一種有效的控制方法.針對一類離散非線性時變系統在有限時域上的精確軌跡跟蹤問題，提出了一種開閉環pi型迭代學習控制律.這種迭代律同時利用系統當前的跟蹤誤差和前次迭代控制的跟蹤誤差修正控製作用.給出了所提出的學習控制律收斂的充分必要條件，並採用歸納法進行了證明.最後用模擬結果對收斂條件進行了驗證Methods to estimate bias error, dispersion and first round hit probability for artillery system are shown. ( 2 ) error - sources of position survey preparation, target position decision, ballistic preparation, meteorology preparation, models, technical preparation and the rest for deliberate preparation as well as their effects on initial firing data errors are discussed in details
（ 2 ）較詳細地討論了精密法決定射擊開始諸元中，測地準備、決定目標位置、彈道準備、氣象準備、模型、技術準備、其它未測定或未修正誤差等誤差源等及其對射擊開始諸元的影響。Secondly, on the premise of the principle of minimum cost and serving object and planning aim of logistics distribution network in a city, the paper analyses systemicly all the factors on total cost, establishes arithemetic model, calculates with ristricted function method, then gets the initial distribution network. thirdly, the aticle evaluates and revises the results calculated from the foregoing madel with delphi method and secondary comparative model, thus gets ulteriorly optimized distribution network. at last, the importance of constructing logistics information platform is put forward, at the same time the flatform ' s requirment, function formation and running mechanism are analysed synthetically
本文首先分析了我國與國外物流發展的差距與異同，並根據我國物流業發展的客觀環境，提出了市域物流配送網路規劃的概念以及開展此項工作的重要性和迫切性；其次在最小成本原則和明確市域物流配送網路服務對象與規劃目標的前提下，對影響總成本的各項因素進行系統分析，從而建立基於最小成本的數學模型，並採用制約函數法對所建模型進行求解，得到最初的配送網路；再次由德爾菲法和二次比選模型對模型求解結果分別進行初次和二次評估修正，從而得到進一步優化的配送網路；最後提出建設市域物流信息平臺的重要性，並對其需求、功能組成及運行機制進行了綜合分析。When ro device does not work normally, for example, outlet water amount is not normal, outlet water quality turns bad, or other phenomena occur, the device must be overhauled
當反滲透設備出現運行不正常，如出水水量不正常、出水水質變差等現象時，須進行設備檢修。On the basis of previous work, we developed a new data processing system by use of dsp & oop. the new system overcame the problems existed in the old data processing system successfully, such as the bug which cause program dead loop when the data is too long, and the frequency leak due to principle limit of fft filter. in addition, we eliminated the measurement error brought on by phase warp
我們在前人的工作基礎上，利用現代數字信號處理技術和面向對象的軟體開發技術，統一了彈上黑匣子數據處理系統的操作平臺，完善了轉速、掃描角測試數據處理系統，修正了原有處理程序中的因數據長度過長而導致程序死鎖的bug ；利用有限沖擊響應（ fir ）濾波器，在濾去噪聲的同時，有效地解決了矩形窗fft濾波的頻譜泄漏問題；另外還解決了因相位偏差而導致的測試誤差。The position of the replica is extrapolated until the update is received, leading to a position correction, thus the actual path observed on the replica may be slightly different than the original one
在更新包到達之前，該復制體對象的位置還在繼續按原來的速度改變，這樣就必然導致了需要有一個位置修正，也使得在復制體上觀察到的對象移動路徑與其實際路徑會有一些輕微的偏差。The interface transferring mechanism of fbg strain sensors and error modification have been studied. the equations of multi - layer interface transferring and error modification are derived. interface - transferring properties of fbgs embedded in cfrp were analyzed in theory
建立監測對象實際應變與光纖傳感器應變層間界面應變傳遞的統一模型，並推導其界面層應變傳遞統一公式，用於光纖應變傳感的誤差修正。分享友人