地下水系统

地下水系统BP网络模型的设计与实现

Design and Realization of BP Network Model for Groundwater System

基于GIS的苏锡常地区浅层地下水系统防污染性能评价

Evaluation on pollution-proof performance of shallow groundwater system in Su-Xi-Chang Region based on GIS

岩溶（Karst）地下水系统的输出特征及其系统理论模型

The exporting characteristics of the karst underground water system and the model-establishment of system theory

Np、Pu在黄土地下水系统中的反应路径模拟

Reaction path simulation on Np and Pu in loess-groundwater system

以各分区为单位基于matlab软件建立了遗传算法和地下水系统二维渗流方程相结合的优化程序。

Optimization program , combined with GA and two-dimensional flow equation of groundwater is established aiming at the core-affected zone and high-impact areas based on matlab program .

计算表明，BP神经网络用于模拟地下水系统简便、实用，能很好地预测地下水动态变化情况。

The results of the evaluation show that the application of BP neural network to simulating groundwater system is convenient , precise and satisfactory in predicting groundwater dynamic changes .

BTEX在非饱和土和地下水系统中迁移的试验研究

Experimental study of BTEX transport in an unsaturated soil and groundwater system

对基于BP神经网络的地下水系统参数识别进行了研究，并且提出了地下水系统参数识别的RBF神经网络方法，设计了算法步骤。

Groundwater system parameter identification of BP artificial neural networks is studied . RBF artificial neural networks are presented , and there is better effect because the algorithm has local approach ability .

以DRASTIC模型为基础，建立了评价含水层污染性难易程度的模糊分析理论与方法，并将其应用于沧州市区地下水系统脆弱性评价。

Based on the DRASTIC model , the fuzzy analysis theory and method which are suitable for evaluating aquifer vulnerability are established and have been used in Cangzhou City .

以上海市区第V承压含水层（埋深约350m）以上的整个第四系松散沉积层为研究体，将上海地下水系统作为一个完整且不可分割的系统来研究。

Taking the sediment of the Quaternary system above the 5th confined aquifer , 350m under the ground around Shanghai city , as the target body to be studied as whole system for groundwater .

本文从系统理论出发，运用灰色系统GM（1，N）的建模方法确定地下水系统的状态方程，再通过求解状态方程组实现对地下水动态的预测，并给出了应用实例。

Based upon the system theory , this paper obtains the state equation of the groundwater system by means of the grey system GM ( 1 , N ), then forecasts the groundwater regime by solving a series of state equations , and gives an example .

地下水盆地内局部地下水系统地下水循环更替快，年龄为20a左右，地下水年龄随深度增加而增加；

The cycle rate in the local groundwater system is fast and the age is about 20 years old , which increases with the depth .

为了解污染物在土壤中迁移的规律，利用BTEX模拟轻非水相污染物质，采用土工离心试验技术对BTEX在非饱和土和地下水系统的迁移过程进行模拟。

The transport of contaminants in soil was modeled experimentally using geotechnical centrifuge modeling to simulate the pollutant transport process in an unsaturated soil and groundwater system with BTEX as the light non-aqueous phase liquid ( LNAPL ) .

西南岩溶地区面积78万km2，地下水系统包括裸露岩溶水系统和覆盖-埋藏型岩溶水系统两大类。

There are about 780,000 km ~ 2 karst areas in southwest China , which are composed of two types of underground water systems , i.e. , the bare karst water system and the covered-buried karst water system .

中间地下水系统和区域地下水系统地下水循环更替相对较慢，年龄大于70a，可以寻求14C等其他同位素方法确定准确年龄。

The cycle rates of the middle groundwater system and the regional groundwater system are relatively slow , which ages are older than 70 years , and the correct ages can be derived from other isotopes such as 14C .

铸造废砂堆放对地下水系统的影响

The Influence of Piling up Foundry Waste on the Groundwater System

气候异常对临汾盆地地下水系统的影响

Influences of Climatic Anomaly on the Groundwater System in Linfen Basin

论岩溶地下水系统中的快速流与慢速流

Discussion of rapid flow and retarded flow in karst water system

山东淄河流域岩溶地下水系统研究

Systems of Karst Ground Water in Zihe Valley , Shandong Province

地下水系统准三维流场数值模拟与流场宏观调控

Groundwater System Quasi Three Dimension Numerical Simulation and Field Macro Control

考虑随机输入信息的浅层地下水系统模型

A shallow ground water system model based on stochastic input information

人为活动条件下河北平原第四系地下水系统的演变

Evolution of Quaternary Groundwater System in Hebei Plain under human activities

邢台百泉岩溶地下水系统水-岩反应特征分析

Analysis on Water-Rock Reaction Characteristics of Groundwater System in Xingtai-Baiquan Springs

宁夏南部地下水系统控制构造及其系统划分

Controlling structure and dividing result of groundwater system in Southern Ningxia

喀什市地下水系统确定&随机耦合模拟模型

The Determinate-Random Hybrid Modeling Model for Groundwater System of Kashi City

苏州-无锡-常州地区浅层地下水系统可采资源量评价

Evaluation of the Available Resource of Shallow Groundwater in Suzhou-Wuxi-Changzhou Area

北方地区地下水系统退化的气候干旱化效应

Local climate drying effect from groundwater system degradation in northern China

基于可变水文地质参数的地下水系统数学模型

Mathematical model for groundwater system based on the variable hydro-geological parameters

建立区地下水系统管理模型；

Then , the ground-water flow system management model has been developed .

山西省汾河灌区地下水系统分析

Systematic Analysis on Groundwater of Fenhe River Irrigation District of Shanxi Province