value forecasting 中文意思是什麼

He even set up an astronomical observatory and his accurate weather forecasting proved to be of great value to traders and fishermen

他對氣象變化的預測準確，令商人及漁民受益甚大。

These combination methods simulate the complex relations among serial data by using three - layer ann can approach any rational function and training the network. its principle is that use the forecasting value as ann input stylebook

這幾種組合方法，主要是通過三層神經網路能逼近任何有理函數的特性，通過訓練使得神經網路來模擬系列數據之間與序列之間的復雜關系。

Forecasting calorific value of coal with the method of least - squares support vector machine

應用最小二乘支持向量機預測煤的發熱量

The country has made substantial scientific and technological achievements in some research areas, such as the comprehensive prevention and control of beijing ' s environmental pollution, the capacity of the atmospheric environment, the background value and environmental capacity of the nation ' s major soils, acid deposition and its impact and control, the forecasting and monitoring of the influence of the changes in the global climate and corresponding countermeasures, the depollution of coal, and the control of air pollution

國家取得了北京市環境污染綜合防治研究、大氣環境容量研究、全國主要土壤背景值與環境容量研究、酸沉降及其影響和控制技術研究、全球氣候變化預測影響和對策研究、潔凈煤及大氣污染控制技術研究等一大批科技成果。

Far from our initial landing on china, sun - ref first established a strategy research centre for china real estate, which studies on and predicts the coming of radically changing china real estates, i. e., china real estate integration era, china real estate division era, china real estate finance era, china real estate value era ; studies on the channel mechanism and investment strategy for world capital to connect china real estates ; studies on the finance innovation strategy and investment financing strategy for china real estate ; studies on and regularly releases china real estate expectation index revi, real estate decision - making index revi and so on, in order to provide decision - makers of world capital and china real estates with a number of forecasting information

Sunref推崇中國特色的房地產投資銀行服務，作為國內首家專業的房地產投資銀行權威機構， sunref秉承價值主義資源主義和解決主義三大理念，並專注于為具備投資價值的優秀中國地產商提供量身定做全球融資服務，包括海外上市ipo企業戰略融資項目全球融資等相關的專業執行服務，以及房地產融資戰略財務戰略和地產估值服務等相關的投行咨詢服務。 sunref融資專家推崇「融資四化」策略，即融資導向價值化融資結構分層化融資品種多元化融資成本效益化，有效解決企業融資地域性限制，為中國地產架構全球融資管道和資源管道。

Comparing with the common bp model, it is proved that the hybrid model has better studying speed and forecasting accuracy, and makes well practical value

通過與普通bp模型的比較，證明該模型有較好的學習速度和預測精度，創造良好的實際價值。

To make the prediction values with independence of the general trend, which is changed from year to year, the load data are transformed by profiles, mean value, and variance. sofm is used for the prediction of profiles and mlp networks for prediction of daily mean and daily variance. at a result, load forecasting for 24 hours in a day can be gotten

為使預測值不受負荷逐年變化這一趨勢的影響，把負荷數據變換為特徵、均值和方差的形式，利用白組織競爭網路預測負荷的特徵，然後利用多層感知器網路預測負荷的日均值和方差，最終實現對一大24小時負荷的預測。

Considering the characteristic of vibration of rotary machines, this thesis makes a thorough discussion of forecasting the trend of vibration by a means of time series model, puts forward means of processing the nonstationarity, nonnormality and singular value of the field data and distinguishing their models to build a appropriate model and gets precise mulstep forecast to the trend of vibration

針對旋轉機械的振動的特點，本文深入討論了利用時間序列模型預測振動趨勢的方法，並提出了如何處理現場數據的非平穩性，非正態性，奇異值和模型類型判別方法，以構建合適的模型，實現對振動趨勢進行準確的多步預測。

The problem and solution of estimate at completion forecasting method in earned value analysis

掙值分析中項目完工成本預測方法的問題與出路

Based on plenty of studying, this paper fulfils the function of inputting and outputting, querying, forecasting and dispatching. it can improve the level of water conservancy management and has high reference value for developing other water conservancy management system

本論文通過大量的研究工作，建立了一套以數據庫為核心，集數學統計、管理分析、預測評價模式和規劃模型為一體的信息系統，實現了水利信息的輸入、輸出、更新、傳輸、檢索與查詢等功能。

At the finishing of this paper, the effective identification of designing factors is done and the setting elevation and the cable tension force in next stage are forecasted according to the situation of finished beams. through the forecasting, the constructing state is in coincidence with the designing state. during the bridge construction process, the value of designing parameters are made close to the construction state by means of data collections, optimal controls and detailed analysis of different reasons that caused errors

最後，根據施工的實際狀態對設計參數進行了有效的識別，並利用灰色理論與預測控制相結合的方法，根據已澆梁段的實際狀況對下一施工梁段的立模標高和斜拉索張拉索力進行預測，使施工過程中的受力狀態與已確定的合理施工狀態達到一致。

By reviewing the cases of environment impact value of urban rail transit in china in recent years, and based on the analysis and summary of environment impact value ( eiv ) results and practical effects, some problems in environment impact value ( eiv ) are discussed comprehensively, among which arc the choice of environment protection targets, the accuracy of source strength analogy, forecasting methods of noise and vibration and the principles of control measure

摘要通過對近年來國內城市軌道交通環境影響評價實例的回顧，在對環境評價結果與實際效果進行分析和總結的基礎上，對環境影響評價中的若干問題進行綜合探討，包括環境保護目標的選擇、源強類比的準確性、噪聲與振動預測方法及採取控制措施的原則等。

Based on the definition of the space forecasting uncertainty, value at risk ( abbreviated as var ) model was developed to identify the risk caused by the uncertainty of space forecasting

基於生產面積預測不確定性的定義，本文應用風險價值（ valueatrisk ，簡稱var ）方法對這一不確定性帶來的風險進行識別並決策。

This text completely and systematically studies the status and the development of the pyrolysis and the fluidization of biomass, which distill the bio - oil in the domestic and international area, as well as the existing problems. this thesis primarily include following aspects : ( l ), by experimenting and measuring the energy ( heat value ) and the content of c, h, n chemical element of right 20 kinds of common biomass, on the base of the experimental result, and respectively established the biomass energy predict experiment formula with the element of h and c is from change, and passed the ro. os examination, which provides the basis and convenience for flash pyrolysis fluidization device energy to convert the rate to compute with biomass energy utilization calculation ; ( 2 ), proceeded the tg and dtg experimentation equal velocity ( 10 ? / min, 20 ? / min, 40 ? / min, 60 ? / min ) heating and constant temperature heating by studying on eight kinds of biomass samples, according to the experimental data and arrhenius formula, we established the dynamics model of pyrolysis of, then, using the goast - redfern and p function, we also solved the dynamics parameters and analyze out every kind of biomass ' s frequency factor and parameters of activation energy, and established the every kind of dynamics model of pyrolysis of biomass, all of these provide the theories and basis to make sure the reactor ' s flash pyrolysis work temperature scope design and the describing of pyrolysis reactor dynamics ; ( 3 ), in order to study and ascertain the process of heat completely getting to pyrolysis time of varied size biomass particles, we observed and measured the ratio of length and diameter ( l / d ) with the varied biomass through electron microscope, we concluded the l / d ratios usually is from 5. 0 to 6. 0, the average is 5. 3 ; ( 4 ), we studied the process of biomass transiting and the theory of complete pyrolysis time with the theory of complicated heat field, we got the time ( t ) of the varied size biomass particles arriving to complete pyrolysis, and we knew that the complete pyrolysis time and the time which get to the biggest production ratio are identical, all of these studies provide the theory base for design and forecasting the flash pyrolysis reactor solid state resort time ; ( 5 ), according to the above experiment result, synthesize to make use of the engineering the mechanics, engineering the material, machine the design to learn the principle, deduce, establish the theory of rotation cone flash pyrolysis reactor material resort time ( t ) and reasonable rotation velocity ( or frequency ) relation theory ; and ( 6 ), we gave the reactor ' s smallest cone angle certain, reactor cone wall strength design theory, the reactor production ability theory, the power design method and the critical rotation velocity theory

本文較全面、系統地綜述了國內外生物質熱解液化制取生物燃油技術研究發展現狀及存在的問題，主要研究內容有： （ 1 ）實驗、測定了20種常見生物質的能量（發熱量）和c 、 h 、 n元素含量，根據實驗結果分別建立了以h和c為自變量的生物質能量預測經驗公式，並通過r _ （ 0 . 05 ）檢驗；為閃速熱解液化裝置能量轉化率計算和生物質能量利用率計算提供了依據和方便； （ 2 ）選擇了8種生物質試樣作了等加熱速率（ 10 min 、 20 min 、 40 min 、 60 min ）和恆溫加熱的tg和dtg實驗，根據實驗數據和阿倫尼烏斯公式建立了生物質熱解反應動力學微分方程，並採用goast - redfem積分法和p函數對其動力學參數進行了求解，解析出各種生物質的頻率因子和活化能參數，進而建立了各種生物質的熱解動力學模型，為科學確定反應器的閃速熱解工作溫度范圍及熱解反應動力學描述，提供了理論和依據； （ 3 ）為研究和確定不同尺度的生物質顆粒中心達到全熱解的時間，在體視顯微鏡下對不同粒度的生物質顆粒的長徑比進行了實驗觀察和測定，得出生物質的長徑比（ l d ）一般在5 . 0 6 . 0之間，平均為5 . 3的結果； （ 4 ）採用復雜溫度場傳熱學理論對生物質傳熱過程及充分熱解時間理論進行了研究，解析推導出了不同尺寸生物質顆粒中心溫度達到充分熱解溫度的時間（ t ） ，得出了理論推導的充分熱解時間與最大產油率的熱解時間相一致的結果，為閃速熱解反應器固相滯留時間設計和預測提供了理論依據； （ 5 ）根據上述實驗結果，綜合運用工程力學、工程材料、機械設計學原理，推導、建立了轉錐式閃速熱解反應器物料滯留時間（ ）與轉速（或頻率）合理匹配理論； （ 6 ）提出了轉錐式閃速熱解反應器的最小錐角設計、錐壁強度設計、生產能力設計理論和功率計算方法及臨界轉速理論等。

Value of monitoring fetal and abdominal aorta flow in forecasting intrauterine fetal hypoxia

胎兒大腦中動脈和腹主動脈血流監測對預測胎兒宮內缺氧的價值

The virtual company, outsourced non - value manufacturing, will result in planning of the outsourced activities ( e. g. forward forecasting on how much and when to manufacture )

計劃周期減少，可以更快地更新有關變更計劃、促銷效果和其他活動的消息。

Evidence suggests that the prognostic ability of the new model with high stability, when hidden nodes changing nearby input nodes and training times changing at the certain extent, is significantly better than traditional step wise regression model mainly due to the new model condensing the more forecasting information, properly utilizing the ability of ann self - adaptive learning and nonlinear mapping. but the linear regression technique only selects several predictors by the f value, many predictors information with high relative coefficients is not included. so the new model proposed in this paper is effective and is of a very good prospect in the atmospheric sciences fields

進一步深入分析研究發現，本文提出的這種基於主成分的神經網路預報模型，預報精度明顯高於傳統的逐步回歸方法，其主要原因是這種新的預報模型集中了眾多預報因子的預報信息，並有效地利用了人工神經網路方法的自組織和自適應的非線性映射能力；而傳統的逐步回歸方法是一種線性方法，並且逐步回歸方法只是根據f值大小從眾多預報因子中選取幾個預報因子，其餘預報因子的預報信息被舍棄。

A model with some parameters is used to forecasting the beam camber in the construction. based on the differences between the design value and the survey of the bridge deck elevation in constructing the pre - stressed and so on working condition, the model parameters are identified by ann, and the beam camber of different sections are given

建立施工預拱度的數學模型，根據施工時的預應力張拉后等工況橋面實測標高與設計值的差異，用bp神經網路識別預拱度模型的參數，確定有關各截面的預拱值。

Hereafter being the forecasting to the old age population coefficient, this text has been applied two kinds of regression model, namely univariate linear model and logarithmic model, and thought over three kinds of economic speed of development ( high, middle, low ) in the logarithmic model to forecast the old age population coefficient respectively. finally, by analyzing the forecasted value and the inertia law of population development, the paper points out the lengthening of the population equally expected life span will push forward the aging of population step by step to the advanced age development ; the development trend of the population aging continues to be clear, and just appears a stage characteristic ; furthermore, the population aging speed in rural area will be faster than in the city

此後是對老年人口系數的預測，本文應用了兩種回歸模型，即一元線性回歸模型和對數擬合模型，並在對數擬合模型中考慮了經濟發展速度的高、中、低三種方案，對老年人口系數分別進行預測；最後在分析預測值和人口發展慣性規律基礎上對山東省未來人口老齡化發展趨勢作了較深入分析，指出人口平均預期壽命的不斷延長，將逐步推動人口老齡化向高齡化發展；人口老齡化繼續發展趨勢明顯，且呈現出階段性特徵；農村人口老齡化速度將快于城市。

The grey an ordered series of numbers forecasting is using dynamic gm ' s model, and the time alignment to the system carries on the forecasting of quantity dimension, and with namelying main action characteristic capacity or certain quota to the system is developed numerical value that changes the emergence to the specially designated or appointed moment of future to calculate

灰色數列預測是指利用動態gm模型，對系統的時間序列進行數量大小的預測，即對系統的主行為特徵量或某項指標，發展變化到未來特定時刻出現的數值進行預測。