mathematical forecast 中文意思是什麼

Based on consider hereinbefore, this dissertation discusses several aspects on the problem of the sustainable and optimum exploitation of groundwater resources as follows : ( 1 ) reviewed entirely the origin and evolvement of the concept " sustainable development ", stated and commented the study status in queue on " sustainable development " around national and international range, thorough discussed the science connotation about the concept " sustainable development " ; ( 2 ) looked back and commented across - the aboard some furthest basic concept and proposition related to groundwater resources, put forward self opinions on a few existent mistake points of view and chaos understandings ; ( 3 ) expatiated entirely on the content and meaning of the theory of changeable groundwater resources system, contrast with the traditional methods of groundwater resources calculation and evaluation, combined example to show the application of this theory ; ( 4 ) thorough analyzed the difficult and complexity to forecast the groundwater resources, fully stated the traditional methods of groundwater resources forecasting, pointed out the characteristic and applying condition of these forecasting method, introduced the main ideas and methods of wavelet analysis developed recently, and the matlab software be known as the fifths era computer language, and its accessory wavelet analysis toolbox, applied these methods and tools to analyze the groundwater dynamic curve, adopted the b - j method and morte - carlo method, combined with the theory of changeable groundwater resources system, discussed the new view on the forecast of groundwater resources ; ( 5 ) synthetically analyzed the characteristics and limitations of the present all kind of groundwater manage model, combined mathematical programming mathematical statistics random process and the theory of variation system of groundwater resources on the unite optimum attempter of surface water and groundwater, emphasized how to make the model more nicety, more simple, more practicality ; ( 6 ) analyzed the inside condition and outside condition to assure the sustainable and optimum exploi tation of groundwater resources, the inside conditions are the follows : correct resources idea, scientific methods of resources calculation and evaluation, credible forecast methods of resources, exercisable measures of resources management, the outside conditions are the follows : the development idea of high layer, the transform of manage system, the matched policy and rule of law, the adjusted of economy lever, the improve of cultural diathesis, the boosting up of water - saving consciousness and detail measures, the control of population rising, the prevention and cure of water pollute, the renew and rebuild of ecology ; ( 7 ) scan the sustainable and optimum exploitation of groundwater resources from the high level of metagalaxy, earth system science, and philosophy ; lint out the more directions on groundwater resources

基於以上考慮，論文主要從以下幾方面對地下水資源可持續開發問題進行了比較深入的探討：全面回顧了「可持續發展」概念的由來與演變，對國內外「可持續發展」的研究現狀進行了述評，並對「可持續發展」概念的科學內涵進行了深入探討；對涉及地下水資源的一些最基本的概念和命題進行了全面的回顧和評述，對目前仍然存在的一些錯誤觀點和混亂認識提出了自己的見解；全面闡述了地下水資源變值系統理論的內容和意義，並與傳統的地下水資源計算評價方法進行了對比分析，結合實例具體說明了方法的應用；深入分析了地下水資源預測預報工作的極端重要性和復雜性，對傳統的地下水資源動態預測方法進行了全面的評述，指出了各類預測預報方法的特點及適用條件，對最近二十多年剛發展起來的小波分析技術的主要思想和方法及其應用范圍，以及號稱第五代計算機語言的matlab軟體和附帶的小波分析工具箱進行了介紹，並應用於地下水動態過程線的分析，採用時間序列中的b ? j法，蒙特卡羅方法，與地下水資源變值系統理論相結合，探討了地下水動態資料分析和地下水資源預測預報的新思路；綜合分析了現今各類地下水管理模型的特點及缺陷，將數學規劃、數理統計、隨機過程等與地下水變值系統理論相結合進行地表水地下水或多水源的聯合優化調度，使模型更準確、更實用；對保證地下水資源可持續開發的內部條件和外部條件進行了分析，內部河海人學博卜學位論文前言、摘要、目錄條件主要是正確的資源觀，科學的資源計算與評價方法，可靠的資源預測預報技術，可操作的資源管理措施，外部條件主要是高層發展思路、管理體制的變革、配套的政策法規、經濟杠桿的調節、人文素質的提高、節水意識的增強及具體節水措施、人口增長的控制、水體污染的防治、生態的恢復和重建等;從宇宙科學、地球系統科學及哲學的高度審視地下水資源的可持續開發;指出了地下水資源可持續開發的進一步研究方向。

The multi - aptitude body uncertain composed methods are used to deal with the historical data and forecast ways in which the minimum variance hedge ratio is calculated synthetically ， in order to foster calculational reliability of the minimum variance hedge ratio in hedging of stock index futures the mathematical hedging model which is consists of

本文利用多智能體系統不確定性結論合成方法（ mabm ） ，將股票指數期貨套期保值最小風險保值比率計算的歷史數據分析法和預測法進行了綜合處理，進而提高股指期貨最小風險保值比率的可靠性。基於資本資產的定價模型建立由

The present utilization and existing problems in water resource of the north of huaihe river in anhui are introduced. based on such research objects as northern guo river of bozhou, jiangtang of fuyang and key city zones, a mathematical model with systems engineering viewpoint is established and used to investigate in water resource problems in the area. the main contents are as following : ( 1 ) groundwater resource and present utilization ; ( 2 ) mensuration of calculational parameters of groundwater and calculational methods ; ( 3 ) economic parameters of irrigation areas ; ( 4 ) establishing northern wo river forecast model with finite element method, areal well - group method and water balance method ; ( 5 ) establishing optimal water resource allocating model for northern jiangtang and new cihuaixin river irrigation area and investigating in the combination of surface water and groundwater, optimal agricultural planting - mode and optimal distribution proportion of various water sources ; ( 6 ) some existing exploitation problems and advices about water resource in the area

本論文針對淮北地區水資源開發利用現狀及存在問題，以安徽亳州渦河以北地區、阜陽姜堂鄉和重點城市區為研究對象，運用系統工程觀點，採用數學模型方法，對該區水資源問題進行了綜合研究，主要內容為： （ 1 ）地下水資源及開發利用現狀； （ 2 ）地下水計算參數測定和計算方法； （ 3 ）灌區經濟參數； （ 4 ）採用有限單元法、面狀井系法、水均衡法，建立亳州渦河以北地下水位預測模型； （ 5 ）建立阜陽姜堂及茨淮新河北部的農灌區水資源優化配置模型，應用系統分析的方法，研究地表水與地下水聯合運用，農業最優種植模式及各種水源的最佳分配比例； （ 6 ）淮北地區水資源開發利用存在問題及建議。

By means of the orbit dynamics theory and other knowledge, author established mathematical model related to collision forecast, including space object orbit confirming model, space objects relative movement model, dangerous object distinguishing model and space object collision geometry relation model, etc. according to the mathematic model, author calculated the relative distance transformation rule along with time between the spacecraft and dangerous debris and established early warning rule

依據航天動力學理論和其他知識，建立了碰撞預警相關的數學模型，包括空間目標軌道確定數學模型、空間物體相對運動數學模型、危險物體判定準則數學模型和空間物體碰撞幾何關系數學模型等，根據數學模型計算航天器和危險目標的相對距離隨時間變化規律，設定了預警規則。

However, the forecast ability of the mathematical model is restricted since it is difficult to consist of the closed equations in a large amount of flow problems in hydraulic engineering the synthetic model, which combines the experimental and numerical simulation, is normally used for these complicated problems the results are satisfied in hydraulic engineering

但由於水利工程中相當數量要研究的水流過程還不能組成封閉的方程組，因而使得數學模型的預報能力受到限制。目前，在許多情況下，常採用模型試驗和數值模擬相結合的復合模型方法解決復雜的工程問題，並能獲得比較滿意的結果。

Based on the historical space forecast data and corresponding actual data provided by a global semiconductor assembly and test company, the uncertainty of space planning was defined. during this analysis process, linear regression, grey prediction, neural network back propagation algorithm and confidence interval were applied, respectively, to define the uncertainty. compared with those methods, the confidence interval of historical space forecast error, calculated by mathematical statistics, was the reasonable method to define the space forecasting uncertainty

本文從半導體工廠長期生產能力計劃的頂層即廠房生產面積的計劃展開，對一跨國半導體封裝測試公司提供的廠房生產面積的長期歷史預測數據以及對應的真實數據進行分析，採用線性回歸，灰預測，神經網路bp演算法，基於數理統計的置信區間的求解等方法分別定義廠房生產面積預測的不確定度，經多種方法的比較得出，基於數理統計方法求解出的生產面積歷史預測誤差置信區間能直觀清楚地標定不確定度。

On the basis of forecast model of traffic volume discussing, the mathematic model for the basic parts of road overpass was built up through the research on main mathematical model which suit for overpass in four - stage forecast method. according to the properties and the requirements of the user, by working on the service level, the standard of service level has been defined. the adaptability index of traffic for road overpass was put forward and an adaptability index of traffic system was established

本文系統研究了道路立體交叉的類型，從不同角度對立交類型進行了劃分，在詳細論述立交交通量預測模型的基礎上，針對四階段預測法中適合立交特點的主要數學模型做了深入研究，建立了道路立交各基本組成部分通行能力的數學模型，並按照立交的性質及人們對立交的要求，對立交服務水平進了研究，確立了道路立交的服務水平標準，提出了道路立交交通適應性指標，建立了道路立交適應性指標體系，並由多人層次分析法確定了各指標的相對權重。

Abstract : the present paper reviewed application of mathematical simulation technology in china s iron & amp; steel industry in the recent years and focused in the feature of the business finite element analysis software and its advantages in solving the problems existing in the iron and steel industry and other mechanical working sectors and forecast the trend of development with respects to the application of this technology in the iron and steel industry

文摘:綜述了近年來數值模擬技術在我國鋼鐵工業中的應用現狀，著重分析了商業有限元分析軟體的特點及其在解決鋼鐵冶金和加工領域中的問題時所具有的優勢，並預測了數值模擬技術在鋼鐵工業中應用的發展趨勢。

Fourthly, in this paper, we integrate theories of time series analysis and principles of climate dynamics, research mechanism of the evolving process of air temperature, combine physical analysis with statistical analysis of stochastic process, select forecast factors and construct the mathematical model framework of nonlinear time series according with the evolving feature of air temperature

4綜合隨機過程的統計理論與氣候動力學原理，研究短期氣溫演變過程的機理，將物理成因分析與隨機過程的統計分析結合起來，選擇預報因子，建立符合氣溫演變特徵的非線性時空序列的數學模型框架。

It provides a scientific basis for long - run forecast of nationwide and provincial land use in the future. next, it makes relevancy analysis among cultivated land per capita, food per capita and gdp per capita and determines the relevancy by using grey mathematical method. finally, it undertakes systematical assessment of land use present situation so as to show the regional difference of land use present situation and analyzes the compartment achievement

論文在對省區土地利用差異的理性思考的基礎上，在全國和省區層次進行土地利用的多因素分析，構建了相關的數學模型，為未來時期有關全國和省區土地利用遠景預測提供科學依據；應用灰色數學方法進行人均耕地和人均糧食佔有量與人均gdp之間關聯分析，確定其關聯度；最後進行省區土地利用現狀系統評價，顯化土地利用現狀的區域差異，並對區劃成果進行分析。

The main work is to study how the markov process can be applied to forecast the repairing frequency of naval vessels. the mathematical model is established, when the estimated data of the mathematical model tallies with the actual situation of repairing frequency of naval vessels, the mathematical model of markov process is used to forecast the yearly repairing frequency of different naval vessels

重點研究馬爾可夫過程（ markovprocess ）在艦船維修頻密度預測方面的應用，通過建立數學模型，在驗證數學模型估算值與艦船維修頻密度實際情況相吻合的前提下，用馬爾可夫數學模型分別預測各型艦船的年度維修艘數。

First, utilizing many advanced management technologies, such as business process reengineering, supply chain management, this paper gives reform to material management process as well as customer service process, flattens the " pyramid " type organization structure of company, and puts forward detailed improving measurements for the material requirement forecast and purchase management. then, this paper offers classification for inventory material into abc three groups, amends the mathematical model of classic eoq on the basis of company ' s actual condition, and calculates the main parameter of inventory control. finally, this paper makes economical benefits analysis for the improving results

第三部分為解決方案和改進措施，首先用業務流程重組的基本原理，對企業經營影響較大的物料管理和客戶服務實行流程化管理變革，盡量使公司「金字塔」式的組織結構扁平化，並用供應鏈環境下的物料管理等先進的管理方法和技術，對公司的物料需求預測和采購管理提出了具體的改進措施；其次將abc分類控製法引入公司的庫存管理工作，以經典的允許缺貨、生產時間很短的eoq模型為基礎，根據公司的實際情況對此數學模型進行了修正，並對主要的庫存控制參數進行了計算；最後對改進的效果進行了經濟效益分析。

In this paper, some mathematical methods used to forecast the income of intangible assets are compared, in which we find some mathematical methods ( the forecasting model in time sequence, exponential smoothing estimation method, regressive model ) are not same with the valuing intangible assets, grey model and s - curve model are good to valuing intangible assets. in the base of this, combinatorial model is brought forward in order to make up the limitation of other mathematical me thods

本文將無形資產收益額的預測方法進行比較，發現常用的預測方法（平均數法、指數平滑法、移動平均法和回歸預測模型）在預測無形資產收益額是存在很大局限性，而灰色預測模型和成長曲線模型能充分放映無形資產的收益曲線，在進行比較的基礎上提出組合預測模型，以彌補各種方法的缺陷。

Next, mathematical models concerning the bullwhip effect are set up to analyze this effect. models presented here reveal how the lead time, frequency of demand forecast and the price fluctuation affect the bullwhip effect and prove that information sharing can mitigate the bullwhip effect. in addition, a variety of corrective actions are recommended to reduce the bullwhip effect and improve the efficiency of supply chain management

接下來，用定量的方法建立起了相應的數學模型對「長鞭效應」進行了深入分析，揭示了訂貨提前期、企業需求預測頻率的變化以及價格波動對長鞭效應的影響，並且證明了供應鏈的信息共享可以弱化「長鞭效應」 。

Furthermore, through the analysis of the actuality and characteristic of energy consumption in electric power plants, energy consumption indexes of energy saving management in electric power plants is induced with nonlinear recursive mathematical method, and inverse exponent nonlinear recursive forecast model, a forecast model of energy saving target of electric power plants, is set up

本文從能源危機入手，闡述了節能降耗對世界經濟持續發展的重要性，通過對電廠能源消耗現狀和特點的分析，利用非線性回歸的數學方法對電廠節能管理的能耗指標進行歸納，建立了電廠節能目標的預測模型即倒指數非線性回歸預測模型。