方差極大 的英文怎麼說
中文拼音 [fāngchājídà]
方差極大
英文
varimax-
Cathode and anticathode electric current distributing online detect equipment can trace aluminum electrolysis pot and document the electric current data change. by avail of this data, the relation of anticathode and cathode will be discovered. furthermore, some unknown rule may de discovered by online analysis and data mining. in this paper, author has completed a full study toward the production of aluminum electrolysis
陰、陽極電流分佈在線檢測裝置跟蹤記錄了大量的鋁電解槽在平穩運行和發生針振時的陰、陽極電流分佈變化情況及方差變化情況的原始數據；從理論上講，在這兩者之間存在一定的對應關系，通過對陰、陽極電流分佈的實時、在線檢測，可以對電解槽的穩定性進行判斷，從而找到一種全新和更有效的管理模式。A district or configuration of districts differing widely in size or population because of gerrymandering
不公正劃分的選區由於不公正劃分選區而在面積和人口方面差異極大的一個區或選區結構The project - learning curriculum must lay different particular emphasis on different learning - stage. it is because that the students of different ages have great difference in intellectual structure, body and mind character, lifer exprience., knowledge - level.,
由於小學、初中、高中不同年齡段的學生在知識結構、身心特點、生活閱歷、認識水平和理解能力等方面存在著極大的差異，這就決定了研究性學習在不同的學段應有不同的側重。Nerve cells vary greatly in size and shape
神經細胞在大小和形狀方面差別極大Although szechuan cuisine uses chilli in much the same way as in other asian recipes, the province boasts its very own peppercorn that adds a distinctive fiery taste and fragrance to many everyday dishes
川菜和各省風味菜式有著極大差異，雖然川菜在使用辣椒方面受到鄰近亞洲國家的影響，但四川辣椒本身已成為美食的賣點，加上獨特的烹調方法，更令川菜香氣撲鼻。Local militias can range greatly in training and equipment, while some are little more than unarmoured peasants with weapons, others are well trained, semi professional militias, armed with quality pikes and plate armour
地方民兵在裝備和訓練上差別極大，有的只是無護甲的拿武器的農夫，有的則是訓練良好的，使用優質長槍和板甲的半職業民兵。Cannula compensator is comprised of body tube, compensation tube, flange and gadket. the product is applied in the drainage engeineer, providing great convenience to the detachment and installation of water tower and water meter of pump room. and it plays a role to resolve the compensation issues caused by temperature difference for long pipeline. sgd, axial displacement., , ,
套管式伸縮器是由體管伸縮管壓蘭密封圈構成的，此產品用於給排水工程，它為城鎮自來水塔泵房水表及閥門安裝拆換提供了極大的方便，以及對長距離管道用溫差引起的伸縮問題，起到了良好的填補作用。The geological and geophysical studies show that there are large discrepancies for the distribution, strike - slip direction and tectonic styles of the faults in the southern and northern parts of the qinghai - xizang plateau, and for the deep crustal architectures in the eastern and western parts of the southern plateau
摘要青藏高原南部與北部的斷裂帶走滑方向不同，斷裂帶在高原東、西兩側的展布規律和構造運動方式也存在極大的差異。Twenty f1 combinations crossed among 5 varieties and strains different in fiber properties according to complete diallel crossing design were used to evaluate the heterosis and gene action of boll weight and lint percentage in high quality fiber property varieties in upland cotton in 1998 1999 for two year successively at nanjing. it was indicated that there existed small interactions with the environmental factors without maternal effects and the additive gene effect was in chief, attaining to 51. 2 % and 65. 4 % respectively for boll weight and lint percentage. the dominant effect was also in higher rate, 32. 6 % and 16. 8 % respectively. the population mean heterosis of boll weight and lint percentage over the mid - parental mean were relatively prominent 13. 3 % and 3. 5 % respectively in extreme significance. however, boll weight showed no significantly surpassing parental f1 heterosis over the better parent based on population mean ( 2. 0 % ) ; while the lint percentage expressed significant negative heterosis value ( - 2. 1 % ). the gene actions were in conformity with the heterosis expression. it was shown clearly that the f1 combinations crossed between parents with similar performances had relatively high dominant effects and significant positive f1 surpassing parental heterosis ( f1 heterosis over the better parent ) ; while no f1 combination crossed between the parents with prominent mutual difference surpassed the higher parent in yield components, which indicated that among those parents with less difference and close relationships, there still existed sufficient genetic variation or certain mechanism for creating variation and achieving greater advances in breeding. correlation analyses also indicated that there still existed severely undesirable negative correlation between yield and fiber properties as well as the difficulties for their simultaneous improvements
利用5個具有不同纖維品質性狀的品種（系）配製完全雙列雜交組合20個，通過親本和f1的2年隨機區組試驗發現產量性狀的鈴重和衣分與環境的互作效應小，不存在母體效應，並以加性遺傳效應為主，分別占表型方差的51 . 2 %和65 . 4 % ;顯性遺傳效應所佔的比率也較高，分別為32 . 6 %和16 . 8 % .鈴重和衣分的群體平均優勢較大，分別為13 . 3 %和3 . 5 % ，達到了極顯著;鈴重的超親優勢為2 . 0 % ，不顯著;衣分為顯著的負值（ - 2 . 1 % ） .遺傳分析與雜種優勢結果一致.具體表現在產量性狀上，親本相當配製的組合雜合顯性較高，其超親優勢正向顯著，而極值親本（差異較大）所配組合沒有超過高親的.這表明親本差異小、親源關系較近的親本中仍然存在足夠的遺傳變異或某種機制以創造變異使育種取得更大的進展.相關分析表明了仍然存在嚴重的品質與產量的負相關，遺傳改良的難度較大First, proper initial conditions between ekv and target are the premise of hit - to - kill. capture region is described by equations of relative motion defined in modified polar coordinate while phasetrajectory graph is introduced. and the disturbance of initial condition biase is analyzed by cadet through statistical linearization of ekv dynamical model
本文在修正極點坐標系中建立攔截器和目標之間的相對運動方程，結合相平面軌跡圖，分析了大氣層外動能攔截器的攔截區;對大氣層外動能攔截器動力學模型進行統計線性化，採用協方差分析描述函數法，分析了初始狀態誤差對彈道的影響。Although economic and population specialists and scholars both in abroad and at home have made extreme progress on research the question of rural labor since they studied it very long ago, as far as china is concerned, based on the following three aspects, firstly, the national condition of our country determined that the foreign theory such as lewis theory might instruct us but we ca n ' t use these theories without rectification ; secondly, in china, our research about this question prefer the qualitative analysis to the quantitative analysis ; thirdly, the research on the labor utilization and shift in this specific area, that is, in the mountainous rural area which covers 69 % of our mainland and occupies 56 % of population is absolutely scarce in present ? to make up for the three deficiencies, this paper selects the econometrics analysis, uses investigation data and by virtue of tsp software, establishes a model where shift labor is the dependent variable and the citilization ratio, industrial structure, the income gap between city and country, the rural infrastructure construction, the labor ' s aptitude and the population ' s natural growth ratio are the variableso through economic, statistical and econometrical test, the conclusion is attained : the income gap between city and country and the citilization ratio are the two most important fectors which affect the labor ' s utilization and shift in mountainous rural area -, the rural infrastructure construction and the labor ' s aptitude are the two relative important factors which affect the labor ' s utilization and shift in mountainous rural area while the rural industrial structure and the population ' s natural growth ratio are the two least important factors according to this, this paper puts forward several suggestions that the income gap between city and country, citilization ratio, rural education, rural industrial structure and agricultural mechanization should be carefully treated with on studying the question of labor utilization and shift in mountainous rural area. finally, this paper points to several suspending problems about this research in order to get the concern of specialist and scholars
盡管國內外經濟和人口學方面的專家與學者很早就開始了對農村勞動力問題的研究並取得了極大的進展，但是，我國在研究農村勞動力問題時，基於三點：其一，我國國情決定了國外的理論例如劉易斯理論，雖然對研究我國的農村勞動力問題具有指導意義，但卻不能照搬這些理論；其二，從國內看，我國對該問題的研究重視定性分析而定量分析明顯不足；其三，缺乏對我國占國土面積69 、人口56的山區農村這一特殊區域內的勞動力開發利用及轉移的專門性研究。為了彌補這三個缺憾，論文採用經濟計量學的數量分析方法，利用實際調查資料，藉助tsp軟體，建立了以外出勞動力數量為被解釋變量，城市化率、農村產業結構、城鄉收入差距、農村社會基礎設施建設、農村勞動力素質以及人口自然增長率六個變量為解釋變量的模型，通過對該模型進行經濟學、統計學、經濟計量學三個方面的檢驗，得出如下結果：城鄉收入差距和城市化率是影響山區農村勞動力開發利用及轉移的最重要的兩個因素；農村社會基礎設施建設和農村勞動力素質是較為重要的兩個影響因素；而農村產業結構和人口自然增長率相對來說是較不顯著的影響因素。據此，本文提出了在研究山區農村勞動力開發利用及轉移問題時，應慎重對待城鄉收入差距、城市化水平、農村勞動力素質、農村產業結構、農業機械化五個問題。At the present time the prediction method of attracting pest with black light and recognizing and counting by man is generally adopted. there are some serious shortages such as bad recognition accuracy and low efficiency. it reduces seriously accuracy and timeliness of prediction and is disadvantage in guiding insect disease prevention
目前普遍採用的黑光燈誘集害蟲、人工識別計數的測報方法，存在識別準確性差、效率低等嚴重缺陷，極大地降低了測報的準確度和時效性，不利於指導農田害蟲的防治工作，因此本文提出了基於機器視覺和小波分析的圖像識別技術，用於農田害蟲的自動檢測預報。At first we compare some kinds of investment loss function, analyze their defects and take the eignvalue of covariance matrix as the measurement of investment risk, the principle component as the information of investment market, sn and cv of the principle component as balance relationship between the profit and risk. then different portfolio selection indexes are given, and new portfolio selection models are presented, which are different from h. markowitz model. at last an example is also given
本文首先比較了幾種常用的投資損失函數，在分析它們的缺陷與不足的基礎上，提出了採用收益率的協方差矩陣的特徵根刻畫投資的風險；用主成份綜合反映證券市場的信息；分別採用主成份的差異系數與信噪比反映投資組合的期望收益率與風險之間的均衡關系，並以此作為投資組合損失最小化與收益極大化的指標；得到了不同於hThe algorithm, basing on convolution filtering technique and the fringes " gray values max - min distribution, can automatically and accurately carry out space frequency spectra shifting without spectra analysis and spectrogram in the technique of phase method of projected grating for 3 - d object shapes measurement. the new algorithm makes image processing much caster and the technique of object shapes measurement more automated. the phase error caused by filtering and the crossed - optical - axes geometry setup is also discussed
本文採用投影光棚相位法和數字卷積濾波技術：根據柵線的條紋灰度值分佈具有極大極小分佈的特性，提出卷積濾波形貌光學自動檢測的圖像處理方法，有效地實現了頻譜自動移位，從而進一步提高了圖像處理的速度和形貌測量技術的自動化程度；同時對採用兩光學主軸相交，且非遠心投影系統所產生的誤差進行了分析，並提出了修正方法。In the main theorem, we obtained the error bound between the maximum likelihood estimator and the true parameter
使用這個不等式和概率論的方法，我們得到了參數的極大似然估計的誤差界這一主要定理It neutralizes static charge on the tergeted object via it ' s special conduits. it is easy to operate and install. nopower supply is needed. it can de applied in printing or leather, paper manufacturing. it is durable used
利用極細導電性金屬纖維與帶電體接近，雙方有極大不等的電位差，促使帶電體附近空氣離子化而使璉電體之靜電中和消除，無加裝電源。The pole location technique is proposed and the location of viscoelastic dampers is optimized. the pole location technique is contrasted to the viscoelastic dampers location method that dampers is located by mean square deviation of relative displacement between layers of offshore platforms
研究了極點配置技術，對粘彈性阻尼器進行位置優化配置，同採用將粘彈性阻尼器設置在平臺層間位移均方差最大處作了比較。However, if we construct a comprehensive measuring index using the method of standard deviation and mean difference maximization and assimilate the advantages of the above indexes, we can make the unique and reasonable assessment of fund performance
而運用標準差和平均差極大化方法構造一種綜合評價測度指標，並吸取述上述五個指標的長處，可對基金績效作出唯一和合理的評價。When working in color mode, the module pursues to do the color regress work based on polynomial color regress algorithm, which make the images captured standard in color and brightness. while working in gray mode, the module transforms the color images to the gray ones, base on an algorithm which presented in this paper. the name of it is adaptable gray converting algorithm the merging module is the kernel of our capturing system
當工作在彩色模式時，該模塊利用基於多項式線性回歸的演算法進行彩色圖像的顏色還原，使採集來的圖像在色彩和亮度上回歸到cie的標準色彩空間;工作在灰度模式時，該模塊利用本文提出的一種基於方差極值的自適應灰度轉換演算法進行彩色圖像轉灰度操作，自動實現了彩色轉灰度的過程中最大限度保留原有細節的目的。Through manufacturing special pattern, using the variance analysis and range analysis of the orthogonal experiment, the effects of process parameters on prototyping size, form and position accuracy, surface roughness are discussed, the combination of process parameters are optimized, and the prototyping quality is greatly improved
通過製作專門的樣件，採用正交實驗的方差、極差分析方法，討論了各工藝參數對成型件尺寸、形位精度和表面粗糙度的影響，並且優化了工藝參數的組合，大幅度改善了成型件質量。分享友人