yield forecast 中文意思是什麼
yield forecast
解釋
產量預報-
The, th chapter studies power of forecast of discount. the discount can forecast yield and is balanced with market index in long term
封閉式基金折價對收益率具有較為顯著的預測作用，且折價率的平均水平與市場走勢具有長期均衡關系。 -
This paper is to develop a model on synthesis reaction of methanol using material and thermodynamics balance, and to utilize matlab to solve multielement nonlinear equation set on proposed model, so calculate balance composition of reactions, parameters of various materials, various process criteria such as methanol output and consumption according to given operation conditions, thereby can quantitatively analyze the effect of various operation conditions on process criteria, so that direct the actual chemical operation, thus assist to determine the optimal operating conditions of synthesis, consequently could forecast various criteria such as yield and consumption according to given conditions of feeds
摘要通過物料平衡與勢力學平衡對甲醇合成反應過程進行建模，並採用matlab工具對所建模型進行多元非線性方程組的求解，以根據給定操作條件來計算反應平衡組成、各股物料參數、各主要工藝指標如甲醇?量、消耗等，並繼而定量分析各種操作條件對工藝指標的影響，以便指導實際化工生?操作，從而幫助確定最佳的合成操作工況條件，並可以根據給定的原料條件等參數預測合成?量與消耗等指標。 -
The regression equation between base moisture of soil and yield is set up, in which the soil base moisture of previous year is used as a limited factor on the yield of later year, which can forecast a upper limit of the yield with 95 % statistical significance, so the opportunity which appears when the yield determined by user disagrees to the reality, and the degree that fertilizer recommend result tallies reality is improved. the databank of model between yield under fertilizer effect on loess plateau are established, so the system estimate ability is enhanced
系統採用前一年的底墑作為后一年產量的限制因子，建立了底墑與產量的回歸方程，利用統計規律保證利用此方程對產量上限的預測達到95的置信度，以此減少用戶定產時出現不符合事實的機會，提高了施肥推薦與實際生產符合的程度；建立了黃土高原區產量效應模型數據庫，增強了系統的預測能力；採用了兩種肥料分配方案，便於不同的生產者進行選擇。 -
In accordance with standard asset pricing theory, the stock market should be a macroeconomic " barometer ", should be able to forecast the stock yield productivity changes, stock prices reflect economic fundamentals signal
根據標準的資產定價理論，股市應該是宏觀經濟的「晴雨表」 ，股票收益率應該能預測生產率的變化，股票價格能反映經濟基本面的信號。 -
The correct runoff forecast in time can yield good economic and social returns
正確及時的洪水預報不僅可以帶來可觀的經濟效益，而且可以產生良好的社會效益。 -
On the basis of completing the research of the theoretic of agricultural production macro decision support system, the writer carries through the demonstration analysis research for chuangye farm, who has established the data houseware of agricultural production in chuangye farm, and has completed the the grain yield forecast, agricultural products " price index forecast, disaster changing forecast, industrial production structure assessment by using data mining system, the simulation of livestock ' s population change, analysis of input and output, and the establishment of model of industrial structure optimization. it settles the base for full information support to agricultural production macro decision of chuangye farm
在完成農業生產宏觀決策支持系統理論研究的基礎上，作者以創業農場為研究對象進行了實證分析研究，建立了創業農場農業生產的數據倉庫系統，並應用數據開采系統完成了糧食產量預測、農產品價格預測、災害變化預測等工作，應用模型管理系統完成了牲畜種群變化的模擬和投入產出分析，並建立了宏觀生產結構優化模型，為創業農場農業生產宏觀決策提供全方位的信息支持奠定了基礎。 -
Application of grey prediction model gm for yield trend forecast of early spring crops in yunnan province
灰色預測模型在雲南小春作物產量預報中的應用
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