yield coefficient 中文意思是什麼

yield coefficient 解釋
產額系數
  • yield : vt 1 生出，產生（作物、報酬、利益等）。2 給與，讓與；讓渡；放棄（權利、地位等）；交出。3 承認。4 ...
  • coefficient : adj. 共同作用的。n. 1. 共同作用；協同因素。2. 【數，物】系數，率；程度。
  1. So we consider five financial indexes includes stock b / p, e / p, current stock size, current stock stru and financial levge by the international tradition, then descriptive statistical test method and cross section statistical test method proved that b / p and current stock size have marked effect on the securities yield besides coefficient b. in the third chapter, the article fut forward a risk factor model, estimates yield sequences of every risk factor by weight regression, and then estimates each risk factor coefficient of different stock by time sequence regression, at last we can reckon the portfolio risk o2p and yield rp which consists n stocks

    結合國際慣例，文章考慮了股票的凈值市價比（ b p ） ，市盈率倒數（ e p ） ，流通規模（ size ） ，流通比例（ stru ）和財務杠桿（ levge ）等五個財務指標，應用描述性統計檢驗和橫截面統計檢驗等多種方法，結果表明，除系數以外，凈值市價比（ b p ）和流通規模（ size ）對證券收益率部有重要的影響。在論文的第三章，提出了一個基於多因素的風險因子模型，並用加權回歸和時間序列回歸等方法估計出了不同證券的各風險因子系數（類似於單指數模型中的系數） ，據此，即可衡量出一個包括n只股票的組合的風險_ p ~ 2和收益率r _ p 。
  2. While the spearman ' s rho correlation coefficient between the dividend yield and ex - dividend price ratio is positive, but not statistically significant at 5 % level. so the ex - dividend day price ratios do not provide much evidence in support of dividend tax clienteles

    而1995 - 2000年股價變動股利比與股利率的相關系數為正，但是相關性不顯著，因此中國深市不存在稅收客戶群效應。
  3. The correlation analyses were conducted for the rations between the vegetation indices and the sampled grass yield data which were taken as the grassland biomass quotas. the results indicated that there are quite high correlations between the vegetation indices and the grassland yield data. among them the rvi has the highest correlation coefficient, ndvi in the next, and then successively tvi, msavi, infrared index, savi, gvi, dvi and w vi, but bvi has the lowest correlation coefficient that there is a negative correlation coefficient between bvi and the biomass

    對各種常用植被指數和草地生物量進行相關分析，由分析結果得出，比值植被指數（ rvi ）與草地生物量的相關性最高，相關系數達到0 . 885 ，其次為ndvi ，然後依次為tvi 、 msavi 、紅外指數、 savi 、 gvi 、 dvi和wvi ，而bvi與草地植被生物量呈負相關關系，且相關性最低，總的來說，遙感植被指數和草地生物量具有較好的相關關系，因而，利用植被指數來建立草地生物量監測模型是可行的。
  4. The trial data of yield of cane and sugar from the fourth national sugarcane variety united trial in yunnan were analyzed by the stability parameter and high stable coefficient ( hsc ) method

    摘要用穩定性參數和高穩系數法對全國第四套甘蔗聯合區試種在雲南省農業科學院甘蔗研究所的蔗糖產量進行綜合比較分析。
  5. From the point of view of risk, a index system of risk assessment of winter wheat losses caused by drought was established, including the meanings, token models and estimate methods of risk index of natural water deficiency rate, risk index of yield reduction rate and trending vector coefficient of disaster resistance capability, then on the base of these indices, the comprehensive risk index model of losses caused by drought was established and regionalized. the results indicated : the high risk region included the middle north of shanxi, some of middle of shaanxi and some of hebei in east ; the higher risk region included some of middle of shaanxi, the tangshan region and some of west of hebei ; the moderate risk region included the middle of s

    從風險的角度，建立了冬小麥乾旱災損風險評估的指標體系，包括自然水分虧缺率風險指數、減產率風險指數和抗災性能趨勢向量系數的意義、表徵模式和估算技術方法，在此基礎上構建了災損綜合風險模型，並對模型參數區域化，結果表明：冬小麥乾旱災損高風險區在陜西中北部、山西中部的部分地區和河北滄州的部分地區；較高風險區在山西中部的部分地區、河北的唐山地區和西部的部分地區；中風險區在陜西中部、山西南部、河北滄州的大部分地區；低風險區在陜西中南部、河南中北部、北京市、天津市、河北中南部和山東省。
  6. Takeing drought - resistant index and drought - resistant coefficient as evaluation indicators, also considering their fertility and stability of yield, germplasms that showed fine character were rongjiang cihong, luodian juhuang, wangmo huang, ziyun jianzuihong, wangmo mashan hong, ziyun huang and so on

    以抗旱系數和抗旱指數為主要評價指標，兼顧其穩產性和豐產性，表現優良的種質有：榕江刺紅苞谷，羅甸桔黃苞谷，望謨黃苞谷，紫雲尖嘴紅包穀，望謨麻山紅苞谷，紫雲黃苞谷等。
  7. This paper describes the principle of neutron yield measurement with icf activation taking example for cu 、 - coincidence counting system based on pxi, software configuration and function, the counting method of neutron yield and the calibration coefficient

    摘要以銅為例介紹了中子產額活化法測量的原理、基於pxi的-符合計數系統、軟體結構和功能、中子產額的計算與實驗刻度因子標定等，最後結合實驗測試結果對系統性能進行了分析。
  8. Correlation analysis and significant test showed that the correlation coefficient of average sugarcane yield and hsc was up to - 0. 9396 ( superscript * * ), significant at 1 % level

    變異參數的相關性分析和顯著性測驗表明，平均產量與高穩系數之間達極顯著的相關，相關系數達- 0 . 9396 （上標* * ） 。
  9. The high and stable yield abilities of 18 millet varieties which have breed recently for the north high plateau area in china were studied by the methods of megression coeffient, stable parameter, and high and stable yield coefficient as well

    摘要利用回歸系數法、穩定性參數法和高穩系數法，對我國北部高原地區新育成的18個新品種（系）的高產穩產性進行了研究。
  10. In the past portfolio modeling work, the single index model has been used continually, which is based on the suppose that securities yield is simple correlation with market portfolio ( or coefficient ft used to describe securities market risk ), but if above suppose is true and if the investment portfolio is effective

    在實際建立證券投資組合時，使用較多的是計算簡單易行的單指數模型。單指數模型是建立在證券收益率只與市場組合（或者衡量證券系統風險的系數）簡單相關的假設條件之上的，但是這樣的假設是否成立，從而據此建立的投資組合是否有效呢
  11. Under the condition of greenhouse, three phosphorus efficient arabidopsis and four phosphorus inefficient arabidopsis obtained from several screening experiments were examined further using the criterion of phosphorus efficient coefficient, e. g. the ratio of yield at phosphorus deficient level to phosphorus normal level, with solution culture experiments

    摘要將初步篩選出3個磷高效（ 01 ， 03 ， 05 ）和4個磷低效（ 02 ， 04 ， 06 ， 07 ）共7個擬南芥在人工培養室營養液培養條件下進行培養，以低磷與適宜磷條件下種子產量的比值作為磷效率系數，結果證明，它們的磷效率系數與初步篩選結果一致。
  12. ( c ) land natural productivity increase from 7843 kg / ( hm2 - a ) to 17335 kg / ( hm2 - a ) relate to altitude closely, and the mean rate of enhancing yield is 23. 53 percent in this region with annual enhancing - rate of 0. 64 percent in last 15 years. ( d ) there are many facters that have been influe ncing soil effective coefficient that ' s soil organic matter, total nitrogen, effective phosphine and soil texture in turn. in a word, attenuation cause of land productivity is the result of water and soil. ( e ) the forestland potential productivity change from 3986 kg / hm2 to 15034 kg / hm2, but it has a high distinction between southern aera and north area in yaan city. ( f ) the grassland potential productivity increase from 4085 kg / ( hm2 - a ) to 16973 kg / ( hm2 - a ), but it has a high classification of potential productivity, ( g ) ditribution map was formed of potential land productivity. ( h ) it could be act as decision support for agriculture development, national land planning and ecotop constructive, etc

    5 、土地自然生產潛力水平的主要土壤限制因素為有機質、全氮，其次為速效磷和土壤質地；區域潛在生產力差異的制約因素，主要為土壤，次為水分，水、土兩項衰減合計為45 . 99 ，石棉、漢源兩縣水、土衰減達到60左右。 6 、林地潛力在3986 15034kg / hm ~ 2之間，高等級林地比重小，以大相嶺為界，北部的各縣林地生產力水平高，南部的兩縣林地生產力水平較低。 7 、天然草地生產潛力水平高，潛力在16973 4085kg / （ hm ~ 2 ? a ）之間，以高產的一、二、三級草地為主，且近10年來該比例變化不大。
  13. The second chapter tests the relationship of securities yield and coefficient b first. the result indicates that the relationship is weak and there should be other factors acted on securities yield

    第二章首先檢驗了證券收益率與系數的關系，結果發現，系數對證券收益率的解釋程度並不高，應該還有其他因素對證券收益率也起著不可忽視的作用。
  14. And no3 - - n can be leached to soil layer below die wetting depth. the convection - dispersion equation with the retardation coefficient yield by method has been adopted to model nh4 - - n transport in saturated soil, simulation results are compared well with experimental results

    基於批平衡得到nh _ 4 ~ + ? n的吸附延遲系數，利用對流一彌散方程模擬nh _ 4 ~ + ? n在飽和土壤中的遷移過程，模擬結果與試驗結果吻合較好。
  15. Ct method uses array linear detectors to perform high - resolution tomography and yield relative image of linear attenuation coefficient

    測出的線衰減系數是相對的，成像要求高分辨。 tgs裝置用的是同軸大體積hpge探測器。
  16. The study results show that the boll number is the most important factor that determines the cotton lint yield per plant, the correlation coefficient and path coefficient of its number and lint yield per plant are respectively r = 0. 9111 and p = 0. 835 ; the correlation coefficient and path coefficient of boll weight and lint yield per plant are r = 0. 4596, p = 0. 435

    結果表明：鈴數是決定棉花單株皮棉產量的最主要的因素，它與單株皮棉產量的相關系數和通徑系數分別為0 . 9111和0 . 835 ，鈴重與單株皮棉產量的相關系數和通徑系數分別為0 . 4596和0 . 435 ，緊隨其後。
  17. And development foregrounds is that propagation coefficient of the tip meristem culture is high and the range of increasing in yield is clear

    莖尖組織培養前景廣闊，具有繁殖系數高、增產幅度大等特點。
  18. With increase of the climate variability, the amplitude of increased yield simulated would be reduced. and the variation coefficient ( vc ) of the simulated yields and their instability would also increase

    但隨著氣候變率的增大，模擬產量的增幅明顯變小，產量變異系數增大，穩產性變差。
  19. 16032 evaluation units of the potential land productivity were overlaid out. by using the mechamism methodology and relative computing models, yaan city ' s land productive potentiality was computed according to synthetic index of land productivity evaluation that was taken as soil effective coefficient. result of research indicated that : ( a ) siol effective coefficient changed from 0. 3047 to 0. 8550, respectively with medium - low yield farmland of 71. 28 percent. ( b ) the division of climate productivibilty is situated on the third degree and fourth class western area in east of chian

    4 、雅安市土地自然生產潛力與目前的實際生產水平比較，其增產潛力平均為23 . 53 ，說明農業技術和管理措施等的增產潛力較大；將目前土地的實際生產水平與15年前比較，土地的實際生產水平逐年上升，年均遞增0 . 64 ，顯然，土地的自然生產潛力是可以通過各種農技措施來挖掘的。
  20. First, the referenced period was selected and the temperature - affecting coefficient was built to analyze the contribution of climate warming to maize yield

    結果表明： 20世紀90年代作物生育期氣溫條件與以前相比已經發生了顯著改變。
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