prediction problem 中文意思是什麼

prediction problem 解釋
預測問題
  • prediction : n. 1. 預言,預告。2. 被預言的事物。3. 【氣象學】預測,預報。
  • problem : n. 1. 問題,課題;疑難問題;令人困惑的情況。2. 【數、物】習題;作圖題。3. (象棋的)布局問題。adj. 1. 成問題的;難處理的。2. 關于社會問題的。
  1. First, the theory of fretting wear and studies on fretting fatigue were introduced and the parametric method was used in the process of creating the model of dovetail joints in ug software. the elastic contact problem is analyzed in finite element method ( fem ) and is used to the parameters " distribution and contact stress of the joint are obtained on the base of ansys code. with the effect factor of load frequency, the prediction method of fretting fatigue life of dovetail joint under low and high / low cycle complex load is proposed

    本文介紹了微動損傷的機理和微動疲勞壽命的研究方法;利用ug軟體對燕尾榫聯接結構創建了參數化實體模型;基於ansys軟體平臺求解彈性接觸問題,獲得了榫聯接結構接觸應力及接觸狀態量的分佈;在已有微動疲勞壽命預測模型的基礎上,引入載荷頻率影響因子,對低周、高低周復合載荷作用下的燕尾榫聯接結構進行了微動疲勞壽命的預測,與試驗結果對比表明採用本文提出的方法預測榫聯接結構的微動疲勞壽命是有效的。
  2. Based on the analysis of the characteristics of the raw mix slurry preparing process in alumina sintering production process, firstly, a mechanism model based on material balance principle was established as the master - rule model for the quality prediction ; secondly, considering the problem that the alkali liquor composition was unstable and its real - time measurement was difficult, a nn ( neural networks ) prediction model for the prediction of the alkali liquor composition was set up and nesting - integrated with the mechanism model ; finally, using the gray theory for the information mining from the errors of the mechanism model, a gm ( 1, 1 ) compensation model was put forward and parallel - connection - integrated with the mechanism model, achieving a raw mix slurry quality prediction model

    摘要針對燒結法氧化鋁生產過程中生料漿配料工藝的特點,根據物料平衡的原理建立機理模型,作為生料漿質量預測的主規律模型;針對堿液成分波動大且難以實時檢測的問題,對堿液成分含量建立了神經網路預測模型,並和機理模型進行嵌套集成;利用灰色理論對機理模型的偏差數據進行信息挖掘,建立了gm ( 1 , 1 )補償模型,並與機理模型進行並聯集成,獲得生料漿質量預測模型。
  3. Abstract : this paper an outline of the national fund project, bridges " s safety prediction and behavior simulation under the multi - phase coupling actions by flood water. the authors approach coupling action models among solid, liquid and gas states, while discussing bridge rupture features under these coupling actins. as one important problem of the project, physical and simulation model are discussed too in the paper. all the discussion in the paper can be a guide to deep research of the project

    文摘:本文系國家自然科學基金資助項目《橋梁抗禦洪災異相耦合破壞作用的安全性預測與模擬》研究綱要的縮影,筆者對災害伴生過程中各物相(固態、液態、氣態)之間耦合作用形態及對橋梁破壞性認識,以及對耦合作用物理模型、模擬模型的初步探討,以期為該項目研究的展開和向縱深推進提供借鑒
  4. Annealing cooling processes are classified in accordance with material and thickness of each steel coil in annealing plan, then multi - input and single - output modeling problem for cooling time prediction of hood - type annealing furnace is simplified to a group of single - input and single - output modeling problem

    摘要按照退火計劃內各鋼卷的鋼種和厚度對退火中的冷卻工藝進行分類,將罩式退火爐冷卻時間預報的多入單出建模問題化為一組單入單出建模問題。
  5. Reliability assessment of xi - luo - du underground water - power plant : the results have been used by the cheng - du surveying, design and research institute for the preliminary design ; ( 2 ) the stress and strain analysis for the xiao - guan - zi sluice and its foundation : the report has been applied for the reinforcement of the foundation ; ( 3 ) the thermal control procedure for the no. 7 - 14 power plant dam segments of the three gorge project : the research report provides the effective and efficient methods for the controlling of the temperature field in the mass concrete structure ; ( 4 ) the software system development for the long - term monitoring for dikes : the software can automatically give the results of the seepage field and the probability of soil piping of dikes and underground ; ( 5 ) reliability assessment of xiang - jia - ba underground water - power plant : the results have been used by the zhong - nan surveying, design and research institute for the preliminary design ; ( 6 ) fatigue reliability estimation of shipping berthing pillar : the results give the optimized design scheme and prediction of the structural age ; ( 7 ) 3 - d static and dynamic stochastic finite element analysis for the strength, stability and thermal control problem for xi - luo - du project

    溪洛渡水電站超大型地下洞室群圍巖穩定的安全可靠性分析:被成都勘測設計研究院應用於比選報告及可行性論證中; ( 2 )小關子水電站攔河閘壩及地基的應力應變分析:被成都勘測設計研究院應用於地基加固處理方案; ( 3 )三峽廠房7 # - 14 #壩段溫控並縫措施研究:為廠房壩段並縫方案的可行性提供了依據; ( 4 )堤防工程體系的長期監控預報預警決策系統開發:為監控、預測預報堤防滲漏管涌破壞提供分析軟體; ( 5 )向家壩地下洞室群圍巖穩定的安全可靠性分析:被中南勘測設計研究院應用於初步設計方案中; ( 6 )靠船墩的疲勞可靠度研究:為廣東航運規劃設計院的靠船墩優化設計和加固提供依據; ( 7 )溪洛渡高拱壩壩體壩基(壩肩)強度和穩定的三維靜動力隨機有限元分析及可靠度計算:為溪洛渡重大工程壩體的靜動力安全穩定性及溫控方案提供依據。
  6. " although this is the pessimistic prediction, the problem is n ' t so serious. national self - determination deeply challenges the present state sovereignty

    盡管這是極悲的預測,問題不會如此嚴重,但是冷戰后,民族自決權確實是對現存的國家主權產生極大的挑戰。
  7. Numerical weather prediction is an important means in present - day weather prediction. mesoscale model mm5 has been used widely in many observatories. along with a large number of doppler radar stations have been built in our country, it is a crucial problem for the meteorologists how to use doppler radar data in numerical weather prediction model

    數值天氣預報是現代天氣預報的重要手段,中尺度模式mm5在很多氣象臺得到了廣泛應用,隨著我國多普勒天氣雷達的普及,如何在數值預報模式中使用雷達資料以提高對中小尺度天氣現象的預報準確率是擺在廣大氣象工作者面前的一個重要課題。
  8. The prediction and quantitative assessment of mineral resources make up a comprehensive decision - making problem which involves multi - levels and multi - factors, and a lot of methods and technological means have been developed and employed to carry out the research in this respect

    摘要在詳細分析各種勘查資料、綜合利用地質科研成果的基礎上開展預測與評價,查明研究區內礦產資源總量及其質量狀況,對科學地指導進一步的礦產普查、勘探和深部評價工作,合理開發礦產資源,保證礦產資源的可持續利用,無疑具有十分重要的意義。
  9. This paper presents the following innovation : 1. this paper proposes the gray - index moving combined forecast model, which combines the single - index moving method with gray disaster prediction theory. the joint model solves the problem of deviation and lag in single - index moving forecasting method in some degree, and prediction accuracy and reliability is improved

    將灰色災變預測與一次指數平滑法相互結合、相互補充,在一定程度上控制了一次指數平滑法預測時的誤差積累,從而修正了用一次指數平滑法預測所帶來的偏差和滯后,提高了預測結果的可靠性和精度。
  10. A self optimizing control method based on the smith prediction control structure is presented for the control problem of time lag, non - fixed and nonlinear system. it combines the fuzzy control with artificial neural networks

    針對時滯不確定非線性系統的控制問題,討論了一種基於史密施預估補償控制結構的模糊控制與人工神經網路相結合的自優化控制方法。
  11. The detailed discussion of application of dynamic data association algorithm based on flight path dynamic prediction in this paper offers an new effective way to solving the multitarget tracking problem in track while scan radar

    通過航跡動態預測,對動態航跡數據相關在邊掃描邊跟蹤雷達的數據處理方面應用做了詳細討論,為解決邊掃描邊跟蹤雷達的多目標跟蹤問題給出了一種有效的新途徑。
  12. To solve this problem, we used the formal charge model to study electrostatic interactions of protein complexes. and a fast and effective model for predicting the salt and ph dependent properties of protein complexes was presented here and applied to the analysis and prediction of the stability of protein structures

    針對這個問題,我們採用簡單形式電荷模型來研究蛋白質二聚體靜電相互作用,建立了一種快速、有效地預測蛋白質穩定性隨溶液ph值和鹽離子濃度變化的方法,並將其應用於蛋白質分子結構穩定性的分析和預測。
  13. The prediction control problem for discrete time - delay system and continuous time - delay system with sinusoidal disturbance is concerned in this paper. chapter 3 is to remove the time - delay from a discrete system with control time - delay by predictive control. the state predictive observer and optimal predictive controller for the discrete delay system based on a state space model are presented

    對于離散時滯系統,本文第三章通過構造預測模型所得的系統輸出預測向量和系統的控制向量,為系統設計了全維狀態預測觀測器( spo ) ,並將該狀態預測觀測器應用於多步預測控制,根據最優控制理論,構建了全維模型預測控制器。
  14. The prediction problem is to predict future observation values with the past known ones. there are mainly two questions to be solve for a predictable variable

    對于給定的一個可預測變量,需要解決兩個問題:一是求出最優預測,二是找出其存在最優預測的充要條件
  15. In order to override the well - known limitation of back propagation algorithm, such as local grade problem, we suggest genetic algorithm, a global optimization algorithm, to optimize the weights set. the different parts of this model were modularized and combined as a prediction system

    通過對固定網路結構的權系值進行遺傳操作,優化網路的權系值組合,快速收斂到最優權系值組合,進而提高網路的分析預測效率和能力。
  16. Statistical learning theory is a newly developed theory for studying the statistical estimation and prediction problem based on small number of samples. it studies the nature of machine learning, so more and more people are interested in it

    統計學習理論是在研究小樣本統計估計和預測的過程中發展起來的一種新興理論,它試圖從更本質上來研究機器學習問題,因此引起了人們越來越多的重視。
  17. Firstly the prediction problem is tranformed to a machine learning problem, then samples are formed by sliding windows on alarm sequence to train svm, thus the prediction model for a given alarm is established

    首先把告警預測問題轉化成機器學習問題,然後通過在告警序列上滑動窗口形成樣本去訓練支持向量機,從而建立對某種特定告警的預測模型。
  18. Developing the pm - rbf algorithm by using neural network which adapts to the prediction of the heat burden. by simulating experiment, the algorithm has favorable precision and speed of prediction, solving the prediction problem of the heating system and providing the basis for optimization and dispatching of the system

    利用神經網路開發了適用於供熱負荷預測的pm - rbf演算法,通過模擬得出,該演算法具有良好的預測精度和速度,能夠較好地解決我市集中供熱負荷的預測問題,並為系統的總體優化調度提供了基礎。
  19. In term of the prediction problem, the fourth chapter discusses its superiority of the optimal and classical predictors based on the ridge estimation, and gives an necessary and sufficient condition of comparison of its superiority under the condition of criterion by some properties of partial ordering of matrix

    藉助矩陣中l ? wner偏序的一些性質,獲得在此判別準則下判別兩類預測量最優性的充要條件。為研究基於有偏估計關于兩類預測量的最優性判別問題提供了一種方法和思路。
  20. One stated that a government body had attacked the prediction problem " with every resource at their command " without obtaining satisfactory results, and another that " intensive investigations " " in california and elsewhere for some forty years " had not led to any progress towards prediction

    其中一位聲稱政府的一個機構以『他們能夠調動的全部資源』對地震預測問題做了努力,但是未能獲得令人滿意的結果;另一位『在加利福尼亞和其它地方對地震預測問題進行了約四十年深入的調查』 ,但也未能朝地震預測方向實現任何進展。 」
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