方差比例 的英文怎麼說

中文拼音 [fāngchābǐlì]
方差比例 英文
variance proportion
  • 方 : Ⅰ名詞1 （方形; 方體） square 2 [數學] （乘方） involution; power 3 （方向） direction 4 （方面） ...
  • 差 : 差Ⅰ名詞1 （不相同; 不相合） difference; dissimilarity 2 （差錯） mistake 3 [數學] （差數） differ...
  • 比 : Ⅰ動詞1 （比較; 較量高下、 長短、距離、好壞等） compare; compete; contrast; match; emulate 2 （比...
  • 方差 : dispersion
  • 比例 : 1. （長度上縮小和放大的倍數） scale; scaling 2. （比率） proportion; ratio; proportionality
  1. This is so because climbing plants are likely to encounter intensive - changing environmental condition during their growth ( especially change of illumination ). secondly, there is a large proportion ( 30 - 40 % ) of climbing plants which belong to dioecism, and hence a gap between male and female plants on morphology, biological characteristic, economic value and so on. this dissertation focuses on herbaceous climbing plants, perennial or annual species such as dioecious trchosahthes kirilowii maxin and dioscorea opposita thumb, and monoecious luffa cylindrical ( l ) roem, it attempts to discover how climbing plants adapted to various environments and the mechanism of adaptation from aspects of physiological and reproductive ecologies at present, due to overuse of chlorofluorocarbons ( cfcs ), the ozonosphere has become thinner and thinner, and the ultraviolet - b ( uv - b ) radiation has increased considerably

    而攀援植物本身是一類理想的植物行為生態學研究材料：第一，攀緣植物由於受攀緣能力和支柱木資源的限制，在生長過程中通常要遇到強烈變化的環境條件（特別是光照） ；第二，攀緣植物中具有較高比例的雌雄異株類型，通常佔地區攀緣植物種類的30 40左右，不同性別的植物在形態學及生物學特性、經濟價值等方面存在一定的差距，因此，本文以雌雄異株攀緣植物栝樓（ trchosahtheskirilowiimaxim ） （葫蘆科多年生草質藤本植物）和山藥（ dioscoreaoppositathunb ） （薯蕷科薯蕷屬植物） 、雌雄同株異花攀緣植物絲瓜[ luffacylindrical （ l ） roem ] （葫蘆科一年生攀緣草本植物）為材料，試圖從生理生態學及生殖生態學角度揭示攀援植物如何適應不同生境及其機理。
  2. On the basis of the ratio of different age in statistical yearbook, author creates a method of the financing of social security for fictitious person, in order to avoid accuracy being disturbed by the difference among particular farmers

    本文以人口統計年鑒中不同年齡段人口所佔比例為基數，創建了虛擬合理標準人的測算方法，規避被征地農民群體個體之間存在的差異對準確推算保障所需資金的干擾。
  3. Its static error is categorized into three types : irrelative with the specific force, relative with the first - order of specific force and relative with the square of specific force

    把漂移誤差分為與比力無關、與一次方成比例和與二次方成比例三類。
  4. The methods for solving these problems are put forword as follows : the method of airphoto scale rangs from 1 / 4 to 1 / 6 of map scale ; a flight line uses belt method ; the optional time intervals of airphoto taking are from may to june and from august to october in one year ; when the contrast at the site is small, or the visibility is rather low and needs to enchance the contrast, the hardening agent should be prepared to process the film

    並提出了解決問題的方法：山區航空攝影合理的攝影比例尺應是成圖比例尺的1 / 4 ~ 1 / 6 ；對于山區窄而長，且為線狀走勢的河流宜採用帶狀航線設計方法設計；山區流域水分充足能見度不好，惟每年5 - 6月和8 - 10月是航空攝影的最佳季節；當地面物體反差小或能見度不好而需要特別提高反差時應配製較硬性藥水沖洗等。
  5. The basic concept of terrain information content is proposed after an overall review of existing research achievement. applying a series of analysis and data processing method, like math - analysis, mathematical statistics, comparative, error visualizing, this paper carefully investigated the terrain information content characteristic of dems of 1 : 50000 map scale of loess plateau area

    本文在對前人已有研究成果進行系統總結的基礎上，首先明確了dem地形信息容量的基本概念，並運用數學分析、數理統計、比較分析、誤差地圖等方法，以海拔高程與等高線為研究對象，以1 ： 1萬比例尺dem為參考真值，探討了黃土丘陵溝壑區1 ： 5萬dem的地形信息容量特徵。
  6. Experiment results show : ? he theory and method of information content could play an important role in the case study on the accuracy and application of dem. ( 2 ) in the loess plateau area, there are much difference between 5m resolution dems of 1 : 10000 map scale and 25m resolution dems of 1 : 50000 map scale while gathering terrain characteristic information, and yet the spatial structure of dem error have discipline and measurability on statistics. ( ? the results could offer fundamentals and methods to people on their work to research the terrain information content of dems with different scale level

    研究結果顯示： 1 、地形信息容量的理論與方法對于dem精度與應用適宜性的研究具有重要的作用； 2 、在黃土丘陵溝壑區，同1 ： 1萬比例尺5米解析度的dem相比， 1 ： 5萬比例尺25米解析度dem在提取地形特徵方面具有較大的差異，但誤差的量值與空間分佈具有統計上的規律性與可估算性； 3 、以上研究結果可望為其它各級比例尺dem地形信息容量的研究提供新的理論基礎與技術方法，也可為有關規范、標準的制定提供依據。
  7. In this research, the lime - fly - ash bound macadam was joined with steel fibers, glass fibers and polypropylene fibers with the contents of the lime, the fly ash and the macadam fixed in lab tests. the study focuses mainly on the split strength, compression strength, and modulus of compressive resilience and shrinkage property of the lime - fly - ash bound macadam enhanced by different kinds of fibers. based on the test, a detail theoretical analysis was made on the relation of mechanical property, dry shr inkage with the variety and the quantity of fibers, applying the theories of strength, dry shrinkage and the methods of statistics, curve mimesis and variance analysis

    本論文主要是研究在同一種二灰碎石混合料（石灰、粉煤灰、集料的含量及比例相同）中分別摻入不同數量的鋼纖維、玻璃纖維、聚丙烯纖維，通過室內試驗對其抗拉強度、抗壓強度、抗壓回彈模量和乾燥收縮性能與纖維摻量和纖維品種之間的關系加以分析和研究，並在此基礎上根據二灰碎石強度形成機理、乾燥收縮機理和數理統計、曲線擬合、方差分析的方法分析纖維品種和纖維數量對二灰碎石的力學性能和乾燥收縮性能的影響，最後得出纖維對二灰碎石的強度、抗壓回彈模量、乾燥收縮有很顯著的影響，並提出了相應的建議。
  8. Abstract : since the multiple failures situation is not uncommon in the clinical medicine, we explore the use of proportional odds model to the multivariate interval - censored data. the approach is based on the conditional logistic regression, which prevents the complications in the existence of nuisance parameters. the estimation of parameters is obtained by the newton - raphson algorithm. the sandwith estimator for the covariance is made according to the situation where there is correlation in the score statistic. simulations are also presented to assess the accuracy of the procedure

    文摘:探索比例優勢模型在臨床醫學中常見的多結局區間截斷數據中的應用.用條件的邏輯回歸方法避免討厭參數的估計，用牛頓-拉普森演算法估計回歸系數，用"夾心方差"估計量作為參數方差的估計.通過隨機模型檢驗模型應用的有效性
  9. By the check - out, inspection and measurement to start construction the industrial art to this test pile with the examination between stake body mass and bearing power, made sure the stroke reasonable operation method drilling under the dissolved cavern geology term ; the pier foundation loading test expressed the lading and rub the lading that resistance drag a glazing for of relation, and to the borehole cast - in - place concrete pile in the karst terrain deliver with break the mechanism, the characteristic of bearing power, proceeding the spot test job of the full of result ; the test data expresses the stake side friction resistance to rises with a bat batch terminal friction resistance very important function, the of tip of pile resistance drag occupies the proportion very few

    通過對本次試樁施工工藝的檢測和樁身質量及承載力的檢驗，確定了沖擊鉆在溶洞地質條件下的合理使用方法；基樁承載實驗表明了荷載與摩擦阻力之間的關系，並對巖溶地區的嵌巖灌注樁的荷載傳遞和破壞機理、承載力特性，進行了富有成果的現場測試工作；試驗數據表明樁側摩阻和支盤端阻起很重要的作用，樁端阻力所佔比例甚少。這與設計樁基時的計算模式相差很大，承載力也較設計增加；使用力學數值分析方法和有限單元法，對鉆孔灌注樁樁端下的巖體強度和結構穩定性方面進行模擬計算和定量研究。
  10. The stems and rhizomes were observed to differ in cortex - cell layer, perivascular fiber - ring presence, vascular cylinder and pith proportions, vascular bundle number and secondary growth and these differences were associated with their own physiological functions

    地上莖和根狀莖之間在皮層細胞層數、周維纖維柱的有無、維管柱和髓所佔比例、維管束束數、次生生長等方面存在差異，這些差異與它們各自擔負的生理功能相關聯。
  11. 2. the radiant characteristics of the sar images are evaluated, which includes relative calibrations and absolute calibrations of the sar images, corrections of the antenna patterns, and ratio transforms and contrast adjustments of the sar images

    2 . sar定標與其圖像輻射特性評價，包括圖像的內定標和外定標，以及以天線方向圖校正、比例變換和反差調整為內容的sar圖像的輻射校正和增強。
  12. ( 3 ) the orientation of target stimuli has no effect on children ' s proportional reasoning, and the gender factor has no effect too

    （ 3 ）目標刺激方向並不影響兒童比例推理，其成績也無性別差異。
  13. Comparing and analyzing the synchronous control strategy, which brings up the new method to control the double un - symmetry jars proceed synchronously with the combination of proportional valve and servo valve, which forms closed loop control ; basing on the above methods, models are made to get mathematics models of position control system and to analyze system model theoretically by using pid controller, we can realize regulating parameters, minimizing synchronous errors and enhancing the dynamic performances ; the simulink tool box in matlab software is used to imitate the system according to the model, which not only makes the result visual and easy to adjust the parameters in interactive way but also lets us understand the effects of different parameters and optimizes the dynamic properties. the theory of plc control in dshp is discussed after advanced understanding of the system movements. hardware design and general regulation are given on the base of siemens company products s7 - 200 plc

    本文根據大量的國內外文獻，對研配液壓機的工作原理及設計結構進行了簡介；對位置同步的控制方法進行了比較分析，提出比例閥和伺服閥復合控制的閉環結構來對非對稱雙缸進行同步控制電液比例同步控制方案；在此基礎上著重對比例閥控非對稱缸建模，最後得到位置控制系統的總體數學模型，從理論上對同步系統動態特性進行了分析，並用pid控制器進行參數整定，減小雙缸同步誤差、提高系統的動態響應性能；其中控制性能的分析藉助于matlab軟體中的simulink工具箱，由已建立的數學模型形成模擬模型，得到可視化的模擬結果，從而利於交互方式下調整參數，了解不同的參數對系統的影響，優化同步系統的動態性能；在深入了解系統的動作特性后，對plc控制研配液壓機的原理進行了探討，針對siemens公司s7 ? 200型plc給出了硬體設計的總體規劃，編制出研配液壓機動作控製程序，在編程中著重研究位移傳感器與plc的通訊、雙缸同步運行的pid控制在plc上的實現及bcd碼撥盤輸入程序的植入問題。
  14. The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault ， researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system ， a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows ： this paper compared some existing methods in excitation control ， fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 ， indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which ， discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations ， made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations ， which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations ， there were several very important parameters of power system - - rotor angle ( ) ， rotor speed ( ) ， generator q axis voltage ( eq ) ， transient voltage ( e ' q ) ， active power ( pe ) ， mechanical input power ( pm ) ， valve opening ( ) ， generator terminal voltage ( vt ) ， based on the model ， nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault ， which achieved better postfault regulation compared with another two routine methods ， one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either

    在介紹逆系統理論的基礎上，詳細介紹了dfl理論，通過比較闡明了dfl理論其本質是逆系統方法的一類，並結合具體課題推導出的模型方程將dfl理論進行了擴展，使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程，此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ，在此基礎上建立了實用的電力系統簡化的數學模型，並將擴展的dfl理論應用於此模型系統，結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器，通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門（考慮發電機的飽和因素）進行了對比，證實了採用此種控制器可以有效地提高電力系統的暫態穩定性，並且在電力系統遭受小干擾時同樣具有良好的調節性能。
  15. 1 in terms of the delivered bales of which the grade and staple for inspection are one grade inferior than the grade and staple provided by the contract, compensations at the deduction rate provided in the foregoing article 8. 1 and article 8. 2 shall be made

    2如果合同規定品級、長度與到岸檢驗品級、長度相差2個級的棉包數量占該批棉包總數量的比例超過5 %的，除按上述8 . 1 、 8 . 2條款規定的差價率補償外，還應按全部降級棉包合同金額的20 %作為違約金賠償給買方。
  16. 2 if more than 5 % of the landed shipment are bales two grades inferior to the contract grade in terms of quality and staple, then in addition to price deduction compensations as in articles 8. 1 and 8. 2, the buyer shall be given extra liquidated damages equivalent to 20 % of the contract value of the total defective bales

    2如果合同規定品級、長度與到岸檢驗品級、長度相差2個級的棉包數量占該批棉包總數量的比例超過5 %的，除按上述8 . 1 、 8 . 2條款規定的差價率補償外，還應按全部降級棉包合同金額的20 %作為違約金賠償給買方。
  17. Regional disparity also exists, with some areas reporting a ratio of 100 to 138, such as southern china ' s guangdong and hainan provinces

    地方差別也仍存在，雨鞋地方報道稱這一比例是100 : 138 ，就好像中國南部的廣東省和海南省
  18. According to the comparison result, the variance analysis will not be applicable when the allowance range has to be set flexibly according to specific operation requirements although it can achieve a high rate of fault detection. for example, when the allowance range of some particular component gets bigger, the variance analysis could not precisely define the new judgment boundary

    比較后發現，方差特徵分析法雖然可以達到很高的故障檢測率，但不適用於元件容差需根據具體要求靈活設定的情況，例如當具體情況中某個元件的容差范圍變大時，用方差分析法卻不能準確地定出新的判斷界限。
  19. A scale coefficient method based on the fem has been proposed to predict the optimum blank in sheet metal forming in this thesis. in order to improve the precision of results and reduce iterate time, at adjusting the original curve, this method is n ' t giving the same adjustment, but giving the corresponding adjustment based on calculation of scale coefficient and shape error of each node to the curve

    本文在有限元模擬的基礎上提出了一種新的板料優化的方法? ?比例因子法，該方法在調整初始輪廓線時，不是給各個節點一個相同的調整量，而是依各個節點的比例因子及形狀誤差值計算出相應的調整量，這樣調整的針對性強，計算結果更精確，需要迭代的時間也更少。
  20. Results the proportion of women using any prescription medication besides hormone therapy did not differ between the arms

    結果：激素替代治療組、安慰劑組和非治療組比較，婦女使用的任一處方藥比例未見顯著差別。
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