point-source model 中文意思是什麼

point-source model 解釋
點源模型
  • point : n 1 尖頭，尖端；尖頭器具；〈美國〉筆尖；接種針，雕刻針，編織針；小岬，小地角；【拳擊】下巴。2 【...
  • source : n 1 源頭，水源，源泉。2 根源，本源；來源。3 原因；出處；原始資料。4 提供消息的人。5 血統。vt 〈美...
  • model : n 1 模型，雛型；原型；設計圖；模範；（畫家、雕刻家的）模特兒；樣板。2 典型，模範。3 （女服裝店僱...
  1. This paper takes the point of solving one of the main problems, i. e. having no steady fund source, which exists in the implementary of public housing system in xi ' an, as the incisive point. the paper analyzes and calculates the problem of fund deficiency in today ' s fund source channel and studies the method of solving the problem during the process of incorporating, using and managing in extant employee housing accumulation fund system in the towns. the paper also advances the ampliative accumulation fund system and builds up the corresponding operating model by adopting the mode of financing affiance, analyzes the investment method by using blurred linear programming and appraises its incremental effect

    本文以解決西安市廉租住房制度實施中存在的主要問題之一?無穩定的資金來源為切入點，在調研資料的基礎上，分析測算了目前的資金來源渠道存在的資金不足問題，同時研究了現存的城鎮職工住房公積金制度在歸集、使用和管理過程中存在問題的解決途徑，提出了擴大的住房公積金並採用金融信託方式構建了相應的運作模式，利用模糊線性規劃模型對其投資方式進行了分析並對其增值效果進行了評價。
  2. The appraisal takes the ecology material, the environment material, chemistry material, the toxicology material as the foundation, through the project analysis, the source strong analysis sets a target the pollutant, distinguishes its hazardous nature, the probability, the degree, the scope which the computation risk occurs and so on, the choice appraisal end point, the use appraisal model forecast goal pollutant exposed density, the analysis risk source to the acceptor the harm degree, carries on the risk attribute

    評價以生態資料、環境資料、化學資料、毒理學資料為基礎，通過工程分析、源強分析，確定目標污染物，鑒別其危害性，計算風險發生的概率、程度、范圍等，選擇評價終點，利用評價模型預測目標污染物的暴露濃度，分析風險源對受體的危害程度，進行風險表徵。
  3. Advances in non - point source pollution prediction model

    非點源污染預測模型研究進展
  4. A study on the non - point source pollution model

    非點源污染模型研究
  5. The targets have their actual " size " other than a point, so using the distributed model to describe the target can be more exactly fixed with the true target than a point source, can more satisfy the request of the modern weapons to target identification and attack with precision

    實際目標具有一定的體積，用分散式模型來描述目標會比點目標更真實，更能滿足現代武器裝備對目標識別和精確攻擊目標要害部位的要求。
  6. The control - equations were solved with upwind tvd algorithm and elemental chemical reaction model, with the point - implicit used to overcome the numerical stiffness of chemical reaction source term

    數值結果顯示，當爆轟波平掠過惰性氣體界面時，形成了爆轟波、界面、透射激波以及稀疏波相互作用的現象。
  7. As the agricultural nfs is the most important factor for water environmental deterioration and lake eutrophication in china, more and more scientists and technologists focus on the control countermeasurc and pollution mechanism of agricultural non - point source ( nfs ). based on the investigation of natural resource and agricultural distribution, the loss rule of nitrogen and phosphorus in the typical land of qiandao lake watershed and distribution rule of the phytoplankton and physico - chemical characteristic in the lake were studied, and the input loading of nitrogen and phosphorus was also calculated by the annagnps model in this thesis. according to the routine monitoring data of the water environment in qiandao lake from 1989 to 2001, the concentrations of toxic substance and heavy metal were under the monitoring limit, but the total nitrogen ( tn ) and total phosphorus ( tp ) were much higher than the criterion for lake and reservoir

    本文調查了千島湖流域的自然資源和農業生產情況，研究了典型坡地降雨徑流中的氮、磷污染物的輸出規律，利用annagnps模型估算流域農業非點源污染物輸入負荷，並在千島湖內設點采樣，對水質理化指標和浮游植物群落進行系統的研究，得出以下結論： 1989 2001年間的水環境常規監測資料統計分析表明，有毒物質和重金屬濃度長期在監測下限內， no _ 2 - n 、 no _ 3 - n 、 nh _ 3 - n年平均濃度均符合類標準，但湖泊水庫特定項目tn和tp濃度分別為超類和類，呈嚴重超標狀況，湖區主要污染因子是將導致富營養化的物質tn和tp 。
  8. Aimed at tackling the stochastic variations caused by non - artificial natural factors and accidental factors such as nonpoint source contamination and point source contamination in geochemical maps for different continental and sea media of eastern zhejiang coastal area, this paper puts forward a geochemical map formation method for different continental and sea media based on a suitable data - processing model and color area spatial distribution so as to improve the map face effects

    摘要針對浙東沿海地區陸海不同介質采樣區地球化學圖中出現的自然因素，以及非點源污染和點源污染等因素引起的隨機變異，提出選擇一種適宜的數據處理模型和色區空間分配為內容的陸海不同介質地球化學成圖方法，以改善圖面效果。
  9. The innovations of this thesis are as the follows : 1 ) it is analyzed that the lower - order jacobi - anger expansion model for an incoherently distributed source has better accuracy performance than some other approximate source models such as space frequency model, two - point source model, and low - rank approximate model. using the parametric decoupling property of the ja - based model, a novel angular parameter estimator is proposed, which is very robust in case of large angular spreading

    本文從這三個方面開展了空間分佈源波達方向估計研究，創新點包括： 1 ）分析了低階jacobi - anger級數展開近似模型的誤差性能；利用該近似模型的參數解耦特性，提出了一種新的波達方向估計器，在大角度擴展條件下，該估計器表現非常穩健。
  10. In this paper, a new heterogeneous anisotropic constitutive model of fractured media was presented, and the properties of elastic waves excited from a two - dimensional ( 2d ) point source propagation in 2d fractured rocks were investigated by the pseudo - spectral method ( psm )

    本文提出了一種新的非均勻各向異性隨機裂縫介質本構模型，用偽譜法模擬了二維點源產生的彈性波在二維復雜巖石中的傳播。
  11. During the seeking course of the construction model of the large - scale suburbs community, the science possibility of his existence and his advanced reason thought model become the focal point studied. the research following the theory of city planing, and the review of emphatic theory of city planning in a hundred years, as well as the research of new theory with new city doctrine the foreground research at present, works hard for summary the source of theory and theory guide of large - scale suburbs community construction, and fully uses city sociology and city economics principle, on the base of a large number

    研究從城市規劃理論出發，通過對百年來城市規劃中重點理論的回顧，以及對目前以新城市主義為首的新型理論的研究，力爭總結出大型城郊社區建設的理論之源及理論指導，並充分運用城市社會學，城市經濟學原理，在大量社會調研的基礎上，對大型城郊社區的存在合理性，社會性，經濟性進行研究，對大型城郊社區的社區要素，經濟要素等進行科學分析，力爭總結出一套適合中國國情的城市郊區開發與建設的科學模式。
  12. Depending on the image method and point source approximation method, the physic model was established, and the formula of photo - current versus surface recombination velocity was obtained

    導出了光電流與表面復合速率相應關系的計算公式，確定了可進行電量測量的實驗裝置。
  13. Abstract : attention is focused on the random mathematical model of particle dispersion in non - uniform turbulent fluid. according to the initial condition, the analysis formulas of point source, linear source and surface source are derived. numerical results are easily obtained by combining linear analytical method with nonlinear numerical method, which are compared with the experimental data

    文摘:研究粉塵顆粒隨機擴散數學模型，在非均勻湍流場中，根據初始條件，推導出點源，線源和面源的解析計算式，其數值計算結果與試驗吻合
  14. Attention is focused on the random mathematical model of particle dispersion in non - uniform turbulent fluid. according to the initial condition, the analysis formulas of point source, linear source and surface source are derived. numerical results are easily obtained by combining linear analytical method with nonlinear numerical method, which are compared with the experimental data

    研究粉塵顆粒隨機擴散數學模型，在非均勻湍流場中，根據初始條件，推導出點源，線源和面源的解析計算式，其數值計算結果與試驗吻合
  15. Non - point pollution source model is the important means of simulating non - point pollution, and soil erosion model is the foundation of non - point pollution model, and the affecting factors of soil erosion is the foundation of soil erosion model

    摘要非點源污染模型是進行非點源污染模擬研究的重要手段，而土壤侵蝕模型是非點源污染模型的基礎，土壤侵蝕因子的研究是土壤侵蝕模型的重要基礎。
  16. In this paper, the sum and source of investment and structure in science and technology of guangdong province are analyzed by the way of qualitative analysis and quantitative analysis, also theory analysis and concrete analysis. then sum up the achievement in economy & science and point out the inadequacy. a model is set up to measure the contribution that technology make to economic increase

    第二章用改進了的索羅模型來測算技術進步對廣東經濟的貢獻率，重點分析了r & d投入與經濟增長的關系，得出了r & d存量與勞動生產率的函數關系，並求出了r & d投入對經濟增長的邊際貢獻。
  17. 3 ) on the other hand, the gaussian heterogeneous anisotropic random fractured model might be a suitable model for the single - scaled and smooth heterogeneous media. the propagation of elastic waves, excited by an explosive point source in exponential ellipsoidal and gaussian heterogeneous anisotropic random fractured rocks, were simulated

    模擬了爆炸點源產生的彈性波在指數橢圓型、 gaussian型非均勻各向異性隨機裂縫國防科學技術人學研究生院學位論文巖石中的傳播，討論了具有不同自相關長度的或者不同類型的非均勻各向異性隨機裂縫巖石對彈性波的散射。
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