probability flow 中文意思是什麼

probability flow 解釋
概率流
  • probability : n 1 或有;或然性。2 【哲學】蓋然性〈在 certainly 和 doubt 或 posibility 之間〉。3 【數學】幾率,...
  • flow : vi 1 流,流動。2 (血液等)流通,循環。3 流過;川流不息;(時間)飛逝;(言語等)流暢。4 (衣服、...
  1. The main process of regional ecological risk assessment includes 5 stages : regional analysis, risk receptor selection, risk sources analysis, exposure and hazard analysis, and integrated risk assessment. arming at flood, drought, storm tide, petroleum pollution accident and flow breaking in the lower huanghe river, the probability and distribution of each kind of risk sources are evaluated. the authors bring forward indexes and formulas to measure hazarded degree and risk value of ecosystem. by using remote sensing data, historic record, survey data and by means of geographical information system, regional ecological risk assessment is finished. on the basis of assessment result, the environmental risk management countermeasure of the huanghe river delta is advanced

    以黃河三角洲為例進行了區域生態風險評價理論和方法的探討。針對黃河三角洲主要生態風險源洪澇乾旱風暴潮災害油田污染事故以及黃河斷流的概率進行了分級評價並提出度量生態損失與生態風險的指標和公式,分析了風險源的危害作用運用遙感資料歷史記錄調查數據和地理信息系統gis技術,完成了區域生態風險綜合評價在此基礎上提出黃河三角洲的區域生態風險管理對策。
  2. The methods of deciding water and hot watersupply design second flow imside of buildings include square root method, experience method and probability method

    建築內部給水、熱水設計秒流量計算方法有平方根法、經驗法和概率法等。
  3. Experimental investigation of multi - scale eddy structures ' intermittency in turbulent flow using probability density function of wavelet coefficients

    用局部平均速度結構函數檢測湍流邊界層多尺度相干結構
  4. According to the characteristics of exploration in oil and gas bearing basins, the author designed the model of multi - scheme decision - making of exploration in oil and gas bearing basins with the method of monte carlo and finished the concrete content of model by c + + builder 5. the paper described the whole procedure of simulation and gained the probability of net cash flow, accumulative net cash flow and financial net cash. the author compared the first exploration scheme with others and revised the result by the method of analytical hierarchy process

    以羌塘盆地為實際算例,具體描述了模擬的整個過程,得到了各年凈現金流量,累計凈現金流量,財務凈現值等經濟決策指標的概率分佈函數和累計概率分佈函數,並對羌塘盆地的三個大規模勘探方案作了比較,使用層次分析法對比較結果作了修正。
  5. To simulate the flow direction of freight in crossing hinterland and forecast throughput of some newly built ports, probability model for transportation means is introduced and revised, and negative exponent probability model is established based on it

    摘要為了模擬港口重疊腹地貨運流向情況,並對新建港口吞吐量進行合理預測,引入了概率交通方式預測模型並對其進行改進,且在此基礎上建立了負指數貨運量概率預測模型。
  6. In the previous direct simulation monte carlo ( dsmc ) method used in the dilute gas - solid flow, particle collision probability was calculated by the equation used for rarefied gas molecules. and gas phase was simulated by the laminar navier - stokes equations

    已有的應用直接模擬蒙特卡羅( dsmc )方法模擬流化床內稀疏氣固兩相流動的研究中,均採用稀薄氣體分子碰撞概率的計算方法計算氣固兩相流中顆粒的碰撞概率,採用層流navier - stokes方程模擬氣相流動。
  7. Simulation results indicate that the scheme achieves significant improvements the load balance of processor and minimizes the probability of flow reordering

    模擬結果顯示,此演算法可以明顯的提高pe負載均衡性,減少報文流亂序概率。
  8. The method can describe the radar intelligence network survivability quantitatively by applying the radar coefficients, the elements ' survival probability based on some suppositions that the command level and intelligence flow in the radar intelligence network are similar to the tree structure and the elements can only belong to two states, i. e. work normally or lose efficiency wholly

    該方法利用雷達情報網在指揮層次和信息流向呈現樹型的特點,在功能單元的工作狀態上採用「工作正常、完全失效」二態模式評估模型的基礎上,運用雷達效能因子和各功能單元生存概率,給出了雷達情報網生存能力的一個量化描述。
  9. The design second flow formula in our country is used in the sovia union before. but the sovia used the probability method in the 1960s

    如我國設計秒流量公式是沿用前蘇聯的計算方法,但蘇聯早在七十年代就以廢除,並使用概率法。
  10. This paper is based on summarizing and analyzing the correlative work. it introduces the speed of the uniform flow closing to the dynamical field in the factual cloud to the answer of the probability equation of the catalyst particle remains in the cloud of nucleation layer, ameliorates the answer of the equation which does n ' t consider the uniform flow evidently

    本論文在總結分析已有相關工作的基礎上,對催化劑粒子在雲中核化層存留概率方程解中,引入了和實際雲中動力場相近的均流速度,明顯改進了過去不考慮均流的概率方程解。
  11. The random mathematical model is described using equivalent markov equations. the time and state parameters are discrete. based on the model, the flow rate distributions along radial and average at any height can be calculated directly, moreover, the probability transition matrix of the flow can be determined via the statistic character of the random cumulate particles, and be corrected by s. cd the random theoretical model shown in fig. l, the section of the bed of tbr is divided into a series of concentric circles

    一、在常溫和常壓下進行滴流床反應器流率分佈的研究,以狀態離散、時間離散的齊次markov過程描述了滴流床在滴流區的流率分佈,建立了滴流床在滴流區流率分佈的隨機模型,根據此模型可以: 1 、可直接確定任一高度下的液體徑向流率分佈及平衡流率分佈; 2 、液體流動的概率轉移矩陣可由隨機堆積顆粒的統計特性確定,以參數s修正。
  12. Many experts and designers hold that the design flow provided by the normal formal is a lot of lack, everybody consistently thinks that the probability method is reasonable and viable in calculating the water supply by many expert, scholar, professor ' s research

    許多國內專家及設計人員反應我國現行規范公式給出的設計秒流量應用於實際中存在很多不足,通過許多專家、學者、教授的研究,大家一致認為用概率論方法計算給水流量是比較合理及可行的。
  13. In this paper, an approach of the systematic artificial neutral net was introduced into the analysis on the ship - against - bridges probability with a computer programs. based on the basic data of the present 12 typical bridges as the sample, 4 chief influential factors as the input coefficient, such as the bridge span, the water flow rate, the incline angle between water flow direction and the direction normal to bridge axis, and the curve in the course near the bridge area, with the ship - against - bridge probability as the output coefficient, the intelligent judging system of the ship - against - bridges probability reflecting the influence of the above input parameters is obtained after training

    本文首次將人工神經網路系統方法引入了船撞橋概率的研究當中,編制了計算程序,成功地以現有12座典型橋梁的基礎數據為樣本,以橋梁跨徑、水流流速、水流方向與橋軸法線的夾角以及橋區航道彎曲度等4個船撞橋主要影響因素為輸入參數,以船撞橋概率為輸出參數,經訓練得到了能較好地反映上述輸入參數影響的船撞橋概率判斷系統。
  14. It uses factor analysis method and dualistic relative comparative method to account the ability place of a loan enterprise in its industry, which can confirm the station in its industry better. by using time series model to forecast an enterprise ' s cash flow in the future, we can measure the repayment ability of an enterprise. by using logit model to account the probability of default for a loan enterprise, we can estimate the possibility of its default

    運用因子分析法和二元相對比較法計算貸款企業在本行業中的財務能力排名,更好地確定其在本行業中的地位;運用時間序列模型預測企業未來的現金流量,從而測度貸款企業未來的還款能力;運用logit模型計算貸款企業的違約概率,估計其違約的可能性;從貸款企業的行業風險、經營風險、管理風險、借款人還款意願等方面對貸款企業的非財務因素進行分析。
  15. Firstly in this part, computer simulation methodology based on the baecher model for generating network of discrete fractures was presented, which includes the follow details : probability distributions of fracture density, orientation, trace length, size, and aperture and estimation of their statistical parameters ; stochastic models of fracture network ; monte - carlo ' s simulation method ; numerical simulation procedure and technicality. then, boundary element method was used to calculate flow through the generated fractured network. assuming single fracture as a two - dimension inexpressible isotropic porous media, boundary element method equations for flow in single fracture and then in fracture network were derived using the weighted residual method

    給出了離散裂隙網路模型所依據的基本假定;發展了基於baecher模型的離散裂隙網路計算機隨機生成技術:詳細地推導了單裂隙滲流和多裂隙相交網路滲流的邊界單元法公式,發展了離散裂隙網路中穩態滲流的邊界元數值技術,並且討論了相關的具體數值技術細節,如角點的處理方法,單元的自動剖分等:描述了混合邊界元?管流模擬方法及其數值實現;研究了裂隙網路的簡化方法,並針對裂隙網路邊界元法的特點提出了一種改進的分塊三角分解法。
  16. The engendering source of traffic volumes and their general influential factors have been presented, and the situation of nowadays highway transportation has been discussed. according to the introduction of traffic distribution theory and classical assignment method, analysis of traffic flow path selection among cities and that of special influential factors for traffic flow on toll highways, initial analysis to the forming mechanism of traffic volume on road sections has been made, and a probability model for path selection has been set up with the maximum - utility theory and disaggregating model. detailed analysis to impedances on road sections and their functions ( especially to three main composing factors of the impedances as cost of time, transport and toll and to the functional relations with traffic loads ) was made, at the same time, the relative cost calculating model was set up on the basis of the state - of - art achievements in both international and national researches

    主要研究內容包括:交通量的產生根源及一般影響因素分析和當前公路運輸地位討論;從交通分配理論及經典配流方法著手,通過分析城市間交通流路徑選擇行為和收費公路路段交通量特殊影響因素,初步提出路段交通量的形成機理,並採用效用極大原理和非集結模型理論( disaggregationmodel ) ,建立用戶出行路徑選擇概率模型;對路段阻抗及路阻函數(尤其對行程時間費用、車輛營運費用和道路收費這三個構成路段阻抗的主要因素及其與交通負荷間的函數關系)進行較為詳盡的分析,並以現階段國內外較為先進的研究成果為依據建立相應的成本測算模型,其中,特別提出了兩種確定客貨車輛時間價值的分析方法;離散分析法和時間-費率轉換法,後者是在目前基礎調查、統計數據資料不夠齊全的現實下提出的一種確定道路系統內務車型時間價值的較為實用的新方法;對我國公路收費政策的背景和理論、實踐依據及費率的各種影響因素進行重點分析;從數學的角度證明合理費率的存在性,並以最優化理論為基礎,建立在普通收費公路和擁擠路段交通調控型收費公路兩種模式下合理費率的計算模型等。
  17. We also analyze the influence of the boundary condition 、 safety distance and deceleration probability to the traffic flow. finally, we propose an crossroad modle. this model is made up of one main road and one branches : traffic with lights placed on the crossing, vehicles " breaking while running and turning to other direction while jamming. we investigate the velocity and flow of the model when the initial density, the brake and turning probabilities, the green to signal ratio are changed. then the reasons causing all the kinds of phenomena are analyzed

    最後研究了周期性邊界條件下的十字路口的ca模型,該模型由一條主幹道和一條支道組成,在幹道與支道的交叉路口設置紅綠燈,車輛在運行中對突發事件發生反應的剎車,路口的車輛可以轉向等各種實際交通行為,並通過計算機模擬,研究模型在改變車輛的初始密度、剎車概率、轉向概率、紅綠燈信號的綠信比等各種情況下支、主幹道車輛的速度、流量的變化,並分析在各種情況下交通狀況的成因,提出改善交通的有效措施。
  18. The overview of green - wave model, braking effect and steering probability effect were generalized on the basis of the existing research on cellular automata traffic flow model. the affection of many factors to be considered in the practical traffic system was summarized

    在已有的交通流元胞自動機模型研究的基礎上,對二維模型中的綠波模型、剎車效應和轉向概率效應進行了綜述,總結了在實際的交通系統中需要考慮諸多因素的影響。
  19. Applying probability learning based evolutionary algorithm to parallel flow lines scheduling problem

    并行流程式生產線調度問題的概率分析求解演算法
  20. The hot water and the watersupply second flow formula is the same in the existing criterion. but the veicle, the law, the time and the probability that the people using hot water is deflsrent from that of the water. so it should have a method

    現行規范中熱水設計秒流量計算方法與給水計算方法一樣,但熱水的用水器具、用水規律、使用時間和用水概率都與給水不同,應有不同的計算方法。
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