最小壓差 的英文怎麼說
中文拼音 [zuìxiǎoyāchā]
最小壓差
英文
minimum differntial pressure-
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。The analysis of the repeated test data shows the maximum deviation of air drag coefficient is less than 0. 88 % and the deviation of the most surface pressure data is within 1 %, it illustrates the test data is reliable
重復試驗的數據分析表明，空氣阻力系數數據的最大偏差小於0 . 88 ，絕大部分測壓試驗數據的偏差均在1以內，這說明客車模型風洞試驗數據的精度較高。In the course of measurement of workpiece face runout, variance method of the most species based on separability and image edges distilling based on morphology and marr filtering based on edges segmentation are used to enhance effectively accuracy of image segmentation and edges distilling. accuracy of measurement of face runout is enhanced effectually by use of least square method of compressing rectangle fitting edge of image and transforming of dft
該系統在工件端面跳動測量過程中，採用了基於可分性的最大類間方差法和形態學邊緣提取以及基於邊界分割的marr演算法，使圖像分割和邊緣提取的準確性得到了很大的提高；用壓縮矩形的最小二乘法擬合工件端面圖像的邊緣以及用dft變換對工件端面的跳動量進行測量，使端面跳動測量的準確性得到了很大的提高。Abstract : a formula for calculating the minimum underbalance in lower permeability reservoir is obtained by applying a drag force function to testing data
文摘:通過將拖曳力函數用於油田測試數據，提出了確定低滲透地層最小測試壓差的公式和方法。To avoid the serious electromagnetic interferer, the analog signals are transformed to frequency pulses which are transferred to the kernel of the system. in the measure of the groove voltage, the method of float - ground is adopted to avoid the high common signal and the range switch circuit is designed to solve the conflict of the wide dynamic range and the high precision. least square curvefit is adopted to reduce the system error
鋁電解生產現場電磁干擾非常嚴重，為此我們將需要測量的模擬信號就近轉換為頻率脈沖后再傳送到控制核心；採用浮地接入方式消除槽電壓信號中的共模成分；設計了量程自動切換電路以解決槽電壓的動態范圍寬和測量精度高的矛盾；用最小二乘法進行曲線擬和以降低測量的系統誤差。The device can realize the following functions : automatic stabilizing voltage, contravariant magnet - suppressing, the smallest excitation limitation, residual voltage starting excitation and reactive regulation
實現自動穩壓、逆變滅磁、最小勵磁限制、殘壓起勵、無功調差等功能。Second, the thesis dicuss the discrepancy of the factor structure of the different sample attribute including identity 、 age 、 degree 、 working years 、 position years 、 department with t test and one - way anova, moreover the staff job satisfaction model is builded with confirmatory factor analysis according to the different identity, and it is obviously different of the factor structure, which loyalty is the most influential to the fomal employee and the less is perfomance examination, salary is the most influential to the informal employee and the less is working press
第二，本文使用t檢驗和方差分析，分別考察員工工作滿意度在身份以及年齡、學歷、工齡、崗齡、部門等統計特徵上的差異，並在此基礎上進一步採用驗證性因素分析方法建立不同的員工身份的工作滿意度模型。在模型中樣本的因素結構存在顯著差異:對正式職工的工作滿意度影響最大的因素是忠誠度，影響程度最小的是績效考核;對招聘職工工作滿意度影響最大的是薪酬，影響程度最小的是工作壓力。Abstract : the generalized shrunken prediction of finite population is introduced, using generalized shrunken least squares estimator of linear regression models. with respect to prediction mean squared error, a necessary and sufficient condition for superiority of a generalized shrunken prediction over the best linear unbiased prediction is obtained. in the case of linear combination of every unit index, a linear restricting prediction is introduced and then a necessary and sufficient condition for superiority of linear restricting prediction over the best linear unbiased prediction is devived
文摘:利用線性回歸模型的廣義壓縮最小二乘估計，引入了有限總體的廣義壓縮型預測，在預測均方誤差意義下，得到了廣義壓縮型預測優于最佳線性無偏預測的一個充分必要條件；在只能得到每個個體指標的線性組合時，引入了一種線性約束型預測，並得到了線性約束型預測優于最佳線性無偏預測的一個充分必要條件The research results show that the counter - flow condensers have a better performance than that of other arrangements in single - circuit condensers, and that branch flow should be adopted in multi - rows condensers to decrease the pressure drop and increase the heat transfer capacity, and that the influence of gravity force can not be ignored, and that there must be an optimum refrigerant mass flow which can make the condenser perform best when the air velocity is constant while there must be an optimum air flow which can make the condenser perform best when the refrigerant mass flow is constant
研究結果表明，單迴路冷凝器中，逆流布置換熱效果最好，叉流其次，順流最差；多排管冷凝器應盡可能採用分流方式，以減小壓降，增強換熱；布置冷凝器流程時，重力的影響不可忽略；當風量不變時，必然存在一最佳製冷劑流量使冷凝器性能達到最佳；當製冷劑流量保持不變時，也相應存在一個最佳風量使冷凝器性能最佳。Minimum operationg pressure differential
最小工作壓差Secondly, hyperspectral images are hard to compress because of their abundant details, complicated texture and insignificant special correlation. making use of the significant spectral correlation within the hyperspectral images, we propose an optimal linear predictor which makes the square error minimal
針對高光譜遙感圖像細節豐富紋理復雜，空間相關性弱，難于壓縮的特點，本文充分利用了高光譜遙感圖像的譜間相關性，設計出對相鄰譜段進行預測並將預測殘差均方降為最小的一種最佳線性預測器。Based on these models, the differential pressure fluctuation signals of gas - liquid two - phase flow under different flow regimes in various diameter pipelines are analyzed. experimental results show that the autoregressive orders of bubble flow and annular flow are bigger than that of slug flow
對不同管徑不同流型下的差壓波動信號進行了建模，在此基礎上分析得出：彈狀流流型下arma模型的階數n最小，泡狀流和環狀流流型下的arma模型階數n較大。After getting the experiment data, the resistance value and the deviation value of compensation voltage can be calculated by the two algorithms which can be realized by vb program language and math software such as matlab and maple
得到採集數據以後，通過vb編程語言， matlab和maple數學計算軟體編程，利用最小二乘法和最佳一致逼近演算法，計算出補償網路的電阻參數和補償電壓的擬合差值。Voltage regulation voltage regulation is a measure that states the difference between maximum and minimum steady - state voltage as a percentage of nominal voltage
電壓調整率電壓調整率描述的是最大和最小穩態電壓差與額定電壓之間的百分比。Unlike the traditional single mode of charge pump structure, the paper adopted 1x / 1. 5x fractional adaptive charge pump, which can automatically convert working mode with the change of input voltage, and utilized ultra - low - dropout current regulators to make 0. 15v led _ minimum regulation voltage in order to remain the charge pump working mostly in higher - efficiency 1x mode
與傳統的單一轉換模式的電荷泵結構不同，本文採用了1倍/ 1 . 5倍分數型自適應電荷泵技術，可隨輸入電壓的變化自行轉換工作模式;採用低壓差電流調節器使led陰極最小調節電壓僅為0 . 15v ，使電荷泵更多地工作在效率更高的1倍模式。This is to say, pu composite hollow fiber membranes pore size can become large with transmembrane pressure increasing, and can recover completely with transmembrane pressure reverting to original pressure at a specification condition. from the hagen - poiseuille equal ion, pu composite hollow fiber membrane pore radius magnification was calculated. in our experiment, the variation of membrane pore radius attained to much six times larger than the primitive membrane pore radius
根據一般非變形膜的純水通量一壓力差的直線關系，首次提出了孔徑變化分離膜的純水通量一壓力差的曲線關系，並根據hagenf公式，理論上計算出了幾種pu復合中空纖維膜最大變形時的膜孔徑為原始膜孔徑的倍數，最小膜孔徑變化也達到原始孔徑的一倍多，最大膜孔徑變化達到原始孔徑的六倍多。Meanwhile, we have gained some achievement. 1. based on error variety of nonlinear control curves of ld output laser power by optoelectronic feedback measured, we take advantage of window pid control algorithm to gain high stability of laser power and reduce error amends at mostly
1 、基於光電池檢測ld光功率輸出的非線性控制曲線產生的誤差變化，將特性曲線利用軟體的窗口控制演算法實現區域控制，進而有效的對ld工作電流進行pid穩態控制和光功率參數顯示，且激光器的光功率輸出和激光通過分光鏡後送入光電池放大電壓量和單片機通過計算使到誤差修正量達到最小，從而使光功率控制達到最佳效果的變化關系。Minimum differntial pressur
最小壓差( 5 ) statistically analyze data : except provide basic analysis, it can also calculate the maximum, minimum, average and root - mean - square value of age, pre - hospital, bp, gcs, rts, iss, gos, ps _ triss, ps _ ascot. the results can be output or printed out by the forms of graph or report
（ 5 ）數據的統計分析：本系統提供基本的數據統計分析功能，可進行包括年齡、院前時間、血壓、 gcs 、 rts 、 iss 、 gos 、 ps _ triss 、 ps _ ascot等資料的最大值、最小值、平均值、標準差等大量統計工作；統計結果可用圖形或報表形式導出或列印。Traditional matched field processors such as linear processor. minimal variance processor, matched mode processor and so on are almost based on the processing of sound pressure, it is well anown tha sound pressure is a time - vaping qmity
傳統的聲源定位處理器有不少，如線性處理器、最小方差處理器、匹配模處理器等等幾十種，基本上都是基於聲壓場進行的信號處理。分享友人