最差的形式 的英文怎麼說
中文拼音 [zuìchādexíngshì]
最差的形式
英文
the wost form of-
In digital relay, the percentage of noise will increase rapidly with the increase of sampling rate when derivation calculus is substituted by sampled difference term. to solve this problem, a new method using fragment function integrated with the least square algorithm is proposed in this paper. the influence of white noise is greatly reduced and the accuracy of the dead angle calculation is nicely improved after adopting the new method
在數字式保護中,如果用差分代替求導將導致噪聲的百分比誤差隨著采樣頻率的提高而劇增,本文對此進行了分析並提出了用分段樣條函數最小二乘法來計算電流波形的導數值,以便在提高采樣率的同時降低噪聲誤差的影響,並將其應用於基於32位浮點dsp的新型變壓器保護裝置。Firstly, second harmonic component ratio and dead angles of two phase inrush ' s dispersion in three - phase transformes are acted as input variable. secondly, the method applies improved algorithm based on the original algorithm of multi - layer forward back propagation network, that is to say, adding last variational effect of weight value and bias value to this time and making use of variable learning rate. at the same time, this method also adopts dynamic form in the number of hidden floor node
首先,文中將三相變壓器兩相涌流差流的二次諧波含量比和間斷角作為網路的輸入變量;其次,利用對原有bp網路訓練演算法基礎上的改進型演算法(即在計算本次權值和閾值的變化時增加上一次權值和閾值變化的影響以及採用變學習率,與此同時隱含層神經元個數採用動態形式) ,通過樣本訓練使網路結構模型達到最優。Comme le moyen de la cooperation le plus etroite, l ' entreprise internationale a capitaux mixtes eprouve sans ancun doute plus profondement les divergences culturelles
作為合作關系最緊密的一種形式,國際合資企業對文化差異的體會無疑會更深刻。It is well known that the competition of hospitality is reduced to talent competition. as the earliest opened industry, hotel industry possess an army of well - exerienced and qualified personnel with advanced management idea. however, rising voice of building professional manager team and the implementation of related principles which is disappointedly dismanipulatible can not fill the gap of fostering professionalized personnel between china and the western countries
作為國內最早開放的行業之一,我國酒店業已經擁有一大批具備先進管理理念,擁有豐富從業經驗的人才,但在職業化人才培養方面,仍和西方發達國家有較大差距,雖然近年來有關職業經理人隊伍建設的呼聲日益高漲,相關政策也陸續出臺,但仍顯得流於形式,缺乏操作性。Compared with the classical bp algorithm, robust adaptive bp algorithm possesses some advantages as following : ( 1 ) increasing the accuracy of the network training by means of using both the relative and absolute residual to adjust the weight values ; ( 2 ) improve the robustness and the network convergence rate through combining with the robust statistic technique by way of judging the values of the samples " relative residual to establish the energy function so that can suppress the effect on network training because of the samples with high noise disturbances ; ( 3 ) prevent entrapping into the local minima area and obtain the global optimal result owing to setting the learning rate to be the function of the errors and the error gradients when network is trained. the learning rate of the weights update change with the error values of the network adaptively so that can easily get rid of the disadvantage of the classical bp algorithm that is liable to entrap into the local minima areas
與基本bp演算法相比,本文提出的魯棒自適應bp演算法具有以下優點: ( 1 )與魯棒統計技術相結合,通過訓練樣本相對偏差的大小,確定不同訓練樣本對能量函數的貢獻,來抑制含高噪聲干擾樣本對網路訓練的不良影響,從而增強訓練的魯棒性,提高網路訓練的收斂速度; ( 2 )採用相對偏差和絕對偏差兩種偏差形式對權值進行調整,提高了網路的訓練精度; ( 3 )在採用梯度下降演算法對權值進行調整的基礎上,通過將學習速率設為訓練誤差及誤差梯度的特殊函數,使學習速率依賴于網路訓練時誤差瞬時的變化而自適應的改變,從而可以克服基本bp演算法容易陷入局部極小區域的弊端,使訓練過程能夠很快的「跳出」局部極小區域而達到全局最優。In this paper, the drive theory of the large ratio friction transmission is studied ; a new type elliptical cam wave generator is designed ; the large ratio friction transmission prototype is designed and manufactured ; based on the ansys finite element method software, structure of the elliptical cam is analyzed ; precision index of the manufactured large ratio friction transmission prototype, such as transmission accuracy, least step, stability of the least step, load capacity is measured by the absolute rotary encoder. by analyzing the measurement data and research content, it is think that the new elliptical cam wave generator could overcome a good many problems brought by processing errors, facilitate size precision adjustments, input moment can be achieved in the form of a pure force couple importing ; through this study, " the large ratio friction transmission prototype " could apply in practical engineering basically
本文研究了大速比摩擦傳動的傳動理論;設計了新型橢圓凸輪波發生器,設計製作了大速比摩擦傳動樣機;用軟體ansys對所設計的橢圓凸輪結構進行了有限元分析;用19位絕對式編碼器測試了大速比摩擦傳動機構的傳動精度、最小步距、最小步距的穩定性以及帶負載能力等各項精度指標;對測量數據和研究內容進行了歸納和整理,認為新型橢圓凸輪波發生器克服了加工誤差帶來的諸多問題,新型橢圓凸輪波發生器可以進行尺寸精度調整,能夠達到輸入力矩以純力偶的形式輸入;通過本項研究,基本可以使「大速比摩擦傳動機構」在工程中得以應用。Thirdly, the author makes it clear that " civil public interest litigation " will be established in two ways : suit by prosecutor and by individual, and analyses them in general. last but not the lest, the article tries to give some analysis of concrete aspects in " civil public interest litigation ", which is divided in fore parts : the fundamental way to build it, the clarity of cases permitted to such litigation, the pre - trial procedures and rational rules on legal costs
首先明確民事公益訴訟的原告資格問題,認為包括檢察機關和個人;其次探討民事公益訴權的問題,從檢察機關和個人起訴兩方面討論了這種權利的理論差茹出;再次從宏觀角度論述了民事公益訴訟的兩種外在形式:公訴與私訴並存的機制,並且簡要分析了各自的相應內容;最後從四個方面探討了民事公益訴訟的幾個具體程序問題。Article to college entrance examination chinese current situation of test, combination of thoery and practice, pass with western chinese graduation examination way, contrast of the method, middle school of developed country, the first part put forward college entrance examination chinese have an examination three principle that should follow, namely content and form of test should respect and meet hereditary quality and individual character difference of quality of student ; should work in concert with latest scientific research results ; should regard measuring students " innovation ability as the main purpose
文章針對高考語文考試的現狀,理論聯系實際,通過與西方發達國家中學語文畢業考試方式、方法的對比,第一部分提出高考語文考試應遵循的三個原則,即考試的內容和形式應尊重和適應學生的遺傳素質和個性品質的差異;應與最新的科學研究成果相呼應,內容應新穎、獨特,能激發人的潛能;應以檢測學生的創新能力為主要目的。Finally, different parameters in the equation of gravity center measuring are analyzed on basis of error theory and conclusion is reached the degree at which the extra angle increament caused by platform defomity influences gravity center measuring is smaler then the measuring error of angle sensor
最後根據多元函數的誤差理論,詳細分析了重心測試計算式中各參數對重心測試的影響,得出平臺變形引起的附加角變形對重心測試的影響程度要小於角度傳感器本身的測量誤差的重要結論。Having analysed the strategies for math - learning according to the individual ' s differences put forward in literature ; having made an experimental study of the idea advocated in literature that students should be grouped and taught according to their intelligence. the results show : such teaching has a negative influence upon the individual ' s achievements and psychology and therefore should nr abandoned ; having analysed whether cooperative learning is feasible and the results show : cooperative learning cannot be used as a form of organizing teaching under the present condition that classes are large in key high schools. instead, we suggest that the study process of adapting to individual differences and strengthening differences in organizing classroom teaching are the best choices in key high school math - teaching
對文獻中提出的班級教學組織條件下進行差異教學的對策作了分析,對目前文獻中提出的按能力分組分層教學進行了試驗研究,結果表明:這種教學形式對學生的數學成績和心理都有消極影響,應該放棄;對合作學習進行了可行性分析,結論是:在當前重點高中大班額等條件下,合作學習不能作為差異教學的組織形式;提出:班級授課組織內,適應個別差異的學習過程個別化的強化的形式,是目前重點高中數學差異教學可實行的最佳選擇。To make the prediction values with independence of the general trend, which is changed from year to year, the load data are transformed by profiles, mean value, and variance. sofm is used for the prediction of profiles and mlp networks for prediction of daily mean and daily variance. at a result, load forecasting for 24 hours in a day can be gotten
為使預測值不受負荷逐年變化這一趨勢的影響,把負荷數據變換為特徵、均值和方差的形式,利用白組織競爭網路預測負荷的特徵,然後利用多層感知器網路預測負荷的日均值和方差,最終實現對一大24小時負荷的預測。After the students graduate from junior middle school, they only mast the ordinary knowledge and some of them ca n ' t even read newspapers well, still less mastering the technology of production and the knowledge of management. therefore, it is quite necessary to develop and do some research about the pattern of exbracurricular biology and scientific education for the peasants " service in the middle school in the countryside. secondly, this thesis sets forth the basis, current situation and aim about the pattern research of biology scientific education for the peasants " service
論文首先論述了在農村初中課程和教材中呈現的大一統形式,與城市學校課程及教材相差無幾,缺乏地方性和特色性,由於片面追求升學率,很少涉及農村農業和農民問題,導致絕大部分學生不能成為優秀學生而白白浪費時間,造成學生不能學以致用,畢業回家時,只具備最基本的文化知識,甚至有的學生連報紙都念不下來,更談不上掌握生產技術、管理知識,因此在國際基礎教育課程改革的大背景下,發展農村初中課外生物科技教育為農服務模式的研究是完全可行和可能的,也是十分必要的。Analyze item by item the position of unintact cycle, the running clearance of unintact cycle, locking - deform, datum dimension regulating, repeatly install, power voltage wave and marking running etc. at the same time, we give the calculating formula to calculating the running marking random error, and use it to calculate the system error of big diameter measure instrument - - datum dimension frame error, gyro - wheel diameter error, error caused by circumstance temperature, error caused by backing distance, angle error, delay error of data collecting circuit, lathe main shaft running error, workpiece install partial error
對不完整圓的位置、不完整圓的轉動間隙、鎖緊變形、基準尺調整、重復安裝、電源電壓波動、標記轉動等隨機誤差進行了逐項分析,並給出轉動標記隨機誤差的計算公式。對大直徑測量儀的系統誤差?基準尺尺架誤差、滾輪直徑誤差、環境溫度引起的誤差、後退距離引起的誤差、角度誤差、數據採集電路延時誤差、車床主軸回轉誤差、工件安裝偏心誤差分別進行了計算,最後對誤差進行合成。It has good computational cost because of avoiding any inverse operation and optimal ordering. it also utilizes double - directional detection and diversity combine technology to migrate the error propagation, and then improve the ber performance
它不需要進行任何形式的矩陣求逆運算和最優信號排序操作,因此具有良好的演算法復雜度,同時它利用雙向檢測策略與分集合併技術來抑制誤差傳遞,提高了演算法的檢測性能。Among the adaptive beam - forming algorithms, the least mean square algorithm is widely used because it has a simple configuration and it is apt to come true and have nice convergence. on the other hand, it has a disadvantage that it converges slowly and there is a conflict between the fixed step and the convergence pace or the error in stabilization. so people have developed many improved least mean square algorithms which generally start from convergence, stabilization, misadjustment, and robustness and come to a formula about variational step in the end
在自適應波束形成演算法中,最小均方( lms )演算法因結構簡單,易於實現,能穩定收斂而得到廣泛應用,但它也存在收斂速度受限的缺點:固定步長因子無法解決收斂速度和穩態誤差之間的矛盾。因此,人們提出了各種改進的最小均法演算法來解決這一問題。改進的最小均方演算法通常從如何改進收斂速度、穩態誤差、失調量和魯棒性等指標上出發,最後在新演算法最終表達式中的步長公式上變化。( 三 ) under the dynamic load of the explosion, the numeric analysis has been done and achieve the rule as follow : ( 1 ) when the frequency of vibration is 0. 3hz, the acceleration of the slopes top gets the maximum ; so 0. 3hz is believed the natural frequency of the slope as a whole ; ( 2 ) the vibration of explosion can been magnified because of the condition of the landform, when the relative altitude is up to 45m, the acceleration of horizon gets the maximum ; when the relative altitude is up to 100m, the absolute value of acceleration and the deformation of horizon is larger than that in the bottom of the slope ; ( 3 ) in the period of forced vibration, at the top of the slope, the acceleration of horizon become larger and larger ; at the middle part of the slope, it becomes smaller ; ( 4 ) when the explosion velocity of is much little, the shallow part destruction is the primary deformation of the slope
(三)採用模態疊加法針對爆破動力作用,進行邊坡的動力響應分析,得出了以下結論: ( 1 )振動頻率為0 . 3hz時,坡面頂部水平向加速度峰值最大;綜合考慮,可認為該邊坡的自振頻率為0 . 3hz左右; ( 2 )地形對爆破地振動存在放大作用,研究剖面的坡面,水平向加速度及位移在地形相對高差45米左右最大,而後隨相對高差的增高而減小,相對高差為100米時,水平向位移及加速度絕對值均大於坡腳; ( 3 )強迫振動段,水平向加速度值隨時間變化的規律為:坡頂節點總的變化趨勢是越來越大,而坡體中部節點的變化趨勢是越來越小; ( 4 )當爆破振速較小時,變形破壞的形式表現為坡頂表面滑塌型。Second, concerning the different features of the provisions, china should invoke those most operative provisions actively in order to bring them into full play ; invoke those less operative provisions as much as possible to help increase their practicability by encouraging the formation of established practice or even case precedents ; take little consideration of those no more worth invoking, but should actively participate in the review and modification of the dispute settlement understanding, and push the clarification of the current provisions and the legislation of more special and differential treatment provisions
其次,從對不同性質的條款的利用對策來看,對操作性強的特殊和差別待遇條款要積極援用,最大限度地發揮其效用;對規定欠缺操作性的條款也要盡可能的援用,以期通過形成慣例甚至判例的形式加強其實用性;對不再具有援用價值的條款可以少作考慮,但我國應當積極參與《諒解》的審議和修訂工作,明確現有條款,並爭取制定更多的特殊和差別待遇條款。Firstly the characteristics of production process and management process were expatiated. secondly a formal difinition of coordinated process model ( cpm ) was proposed. thirdly an example was given to show the distinctions between cpm and existing methodlogies
首先分析了生產流程和管理流程的特點,給出了協同過程模型的形式化定義,最後用一個例子說明該方法與現有過程建模方法的差異。Finally, the relation between the field of view matching of digital binoculars and the size of field of view of binoculars and camera is analyzed theoretically. based on the analysis of the mft principal and measure method of image sensor ’ s mtf, the contact measure method using rectangle template for mtf of image sensor is created. according to the number of pixels of image sensor in one cycle of the template function, the quantitive relation between sine template and rectangle template is proposed through theoretical analysis and comparison
並利用衍射理論,從模板的形式(正弦形、矩形) 、模板與傳感器間距等幾個關鍵因素出發,進行了深入的理論探討,從理論上導出了矩形模板和正弦模板的差異、模板與圖像傳感器光敏面存在間距的情況下的光場分佈;並最終導出了間距存在下圖像傳感器調制傳遞函數值測得值與標準值之間的調整系數,利用此調整系數對實驗數據進行修正後可得到更為準確的調制傳遞函數。However, two - stage estimates of regression coefficients corresponding to these two estimates have approximate equal mean square error. for testing linear hypothesis about regression coefficients, banerjee and magnus ( 1997 ) studied the sensitivity of f - test sta, tistic ( fgls ( ) ) based on generalized least square estimate caused by variance parameter in general case and proposed sensitivity statistic and its distribution
關于回歸系數的線性假設檢驗問題, banerjee和magnus ( 1997 )在一般情況下從理論上研究了方差參數對基於廣義最小二乘估計的f -檢驗統計量( f _ ( gls ) ( ) )的種種影響,提出了敏感性的概念,並給出敏感統計量的形式及其分佈。分享友人