本文關鍵詞：水質(zhì)數(shù)學模型研究的發(fā)展階段與空間層次，由筆耕文化傳播整理發(fā)布。

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水質(zhì)數(shù)學模型     

    Water Quality Mathematical Model to Measure BOD-DO in Streams

    中、小河流BOD—DO水質(zhì)數(shù)學模型

短句來源

    A genetic-gradient algorithm for parameter optimization of water quality mathematical model

    遺傳梯度法在水質(zhì)數(shù)學模型參數(shù)估值的應用

短句來源

    Discussion of water quality mathematical model for water storage in city reach

    蓄水城區(qū)河段水質(zhì)數(shù)學模型建立的探討

短句來源

    This paper was composed of five parts and the main works were summarized as follows:Part one: This chapter briefly introduced the development of water quality mathematical model, the application of GIS technology and the integration of GIS technology and water quality modeling at home and aboard. The importance of research on water quality forecasting and pre-warning system was analyzed.

    第一部分 簡要介紹水質(zhì)數(shù)學模型的發(fā)展概況,國內(nèi)外應用GIS的現(xiàn)狀以及GIS與水質(zhì)數(shù)學模型相結(jié)合的應用現(xiàn)狀,說明進行河道水質(zhì)預警預報系統(tǒng)研究的重要性。

短句來源

    The dissertation developed a two-dimensional water quality mathematical model to simulate the temperature field and concentration field influenced by a point source using the finite difference method.

    本文采用有限差分方法,求解二維水質(zhì)數(shù)學模型,模擬點源排放產(chǎn)生的溫度場和濃度場,為棲息地分析提供依據(jù)。

短句來源

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    It is important that studying the law of absorption and desorption of oil by sediment for establishing the mathematical model of water quality and forecasting water quality,which could provide the basis for treating oil pollution in rivers or ocean.

    研究河流中的泥沙對石油的吸附和解吸規(guī)律對建立水質(zhì)數(shù)學模型及水質(zhì)預測預報具有重要意義，可為水域石油污染的治理提供依據(jù)。

短句來源

    The Development of Mathematics Model of Water Quality

    水質(zhì)數(shù)學模型的發(fā)展概況

短句來源

    Finally, I used the founded mathematics model of water quality supposing that the flux and discharging amount of pollution in three different changing circs to do a simulate calculation about the water quality, especially do a compare in the simulate charts about the NH3-N which is mostly studied in my paper, then I find the main factors that affect the changing of the water quality in Wuhan urban reach of Hanjiang River and the source of pollution to NH3-N.

    論文最后利用建立的水質(zhì)數(shù)學模型,假定在河流的流量和排污量發(fā)生變化時的三種不同情況下,對河流的水質(zhì)進行模擬計算,特別對本論文主要研究的NH_3—N進行了模擬圖比較,找到影響漢江武漢城區(qū)段水質(zhì)變化的主要因素及NH_3—N主要污染源。

短句來源

    Since the Streeter-Phelps water quality model has been built, the mathematics model of water quality is applied widely more and more.

    自Streeter—Phelps水質(zhì)模型建立以來,水質(zhì)數(shù)學模型在環(huán)境問題研究中的應用越來越廣泛。

短句來源

    This thesis makes a basal introduction about the development of mathematics model of water quality

    本文就目前水質(zhì)數(shù)學模型的發(fā)展情況,作一個基本的介紹。

短句來源

    A WATER QUALITY MODEL FOR TIDAL STREAM NETWORK

    潮汐河網(wǎng)水質(zhì)數(shù)學模型

短句來源

    A New Approach on the Mathematical Model for Lake Water Quality

    湖泊水質(zhì)數(shù)學模型的新探索

短句來源

    PARAMETER ESTIMATION IN MATHEMATICAL MODELING OF WATER QUALITY FOR STREAMS

    小城鎮(zhèn)河流水質(zhì)數(shù)學模型參數(shù)估計

短句來源

    Estimation of the parameters in water quality model of streamnetwork.

    河網(wǎng)水質(zhì)數(shù)學模型的參數(shù)估算

短句來源

    Developing Stages and Spatial Levels of Water Quality Modeling Study

    水質(zhì)數(shù)學模型研究的發(fā)展階段與空間層次

短句來源

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  water-quality model

Comparison of renewal time scales with results from a water-quality model revealed that residence time is not a limiting parameter for primary production in the Tagus Estuary.

In doing so, both a water-quality model and a planning and management model are developed.

The water-quality model predicts biochemical oxygen demand (BOD) and fecal coliform (FC) loadings from marina sources in a hypothetical North Carolina estuary.

By running the water-quality model repeatedly with varied loading input, impact coefficients are determined.

The inclusion of SSE in a water-quality model not only provides a framework, for computing water-quality conditions therein but also accounts for the interaction between SSE and the main channel.

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A "Computerized Scanning Calculation-Graphic Analysis-Gradient Searching" procedure was introduced for optimum estimation of river water quality model parameters.

本文介紹了用“計算機掃描計算-圖解-梯度搜索法”尋求河流水質(zhì)數(shù)學模型最優(yōu)參數(shù)的研究成果.該法能解決目前存在的用梯度法搜索參數(shù)時誤差很大的問題.

A water quality mathematical model to measure BOD-DO in streams is developed. It is possible to measure CBOD and NBOD on the model as well. The results obtained have been verified, and the model is suggested to be, useful for prediction and measure of water quality in streams

本文提出一個適用于中、小河流,并考慮縱向分散作用和將生化需氧量分為碳化階段和硝化階段,以及底泥釋放CBOD和NBOD與底泥耗氧的水質(zhì)數(shù)學模型。經(jīng)無錫市梁溪河實測資料驗證,取得較為滿意的成果。

A water quality model for tidal stream network in Nantong City was developed and the parameters of the model were also estimated.

以南通市濠河為例,建立了潮汐河網(wǎng)水質(zhì)數(shù)學模型,并提出了參數(shù)估算的方法。所建模型可用作潮汐河網(wǎng)地區(qū)進行水污染控制、水質(zhì)管理、評價、規(guī)劃的工具。

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  本文關鍵詞：水質(zhì)數(shù)學模型研究的發(fā)展階段與空間層次，由筆耕文化傳播整理發(fā)布。