搜索结果: 1-12 共查到“环境科学技术 Models”相关记录12条 . 查询时间(0.266 秒)
Linear models based on noisy data and the Frisch scheme
linear models factor analysis identification
2015/8/7
We address the problem of identifying linear relations among variables based on noisy measurements. This is a central question in the search for structure in large data sets. Often a key assumption is...
Application of incremental Gaussian mixture models for characterization of wind field data
Application incremental Gaussian mixture models characterization
2015/6/30
Structural responses and power output of a wind turbine are strongly affected by the wind field acting on the wind turbine. Knowledge about the wind field and its variations is essential not only for ...
Comparing the Adequacy of Some Non-Homogeneous Poisson Models to Estimate Ozone Exceedances in Mexico City
MCMC Algorithms Non-Homogeneous Poisson Models Change-Points Ozone Air Pollution Mexico City
2013/3/11
We consider some non-homogeneous Poisson models to estimate the mean number of times that a given environmental threshold of interest is surpassed by a given pollutant. Seven different rate functions ...
Sensitivity Analysis of Parameters in Water Quality Models and Water Environment Management
Water Quality Model Reclaimed Water Sensitivity Analysis Degradation Coefficient Stochastic Factors
2013/3/11
The impacts of changes of various parameters and stochastic factors on water quality models were studied. The impact of deviation of the degradation coefficient on the model results was investigated. ...
Statistical Models for Long-range Forecasting of Southwest Monsoon Rainfall over India Using Step Wise Regression and Neural Network
Monsoon ISMR LRF Step-Wise Regression Neural-Networks
2013/2/26
The long-range forecasts (LRF) based on statistical methods for southwest monsoon rainfall over India (ISMR) has been issued by the India Meteorological Department (IMD) for more than 100 years. Many ...
Comparison of UV-B Broadband Brewer Measurements with Irradiances from Surface-Based and Satellite-Based Models
Department of Geography, University of Winnipeg, Winnipeg, Canada School of Geography and Earth Sciences, McMaster University, Hamilton, Canada
2013/2/26
UV-B irradiance can be estimated from surface meteorological data or from satellite measurements. This paper compares irradiance estimates from the Davies surface-based radiation model and the Canada ...
Puff Models for Simulation of Fugitive Hazardous Emissions in Atmosphere
Hazardous Emissions Advection-Diffusion Equation Analytical Solutions Air Pollution Modeling Puff Models
2013/3/12
A puff model for the dispersion of material from fugitive hazardous emissions is presented. For vertical diffusion the model is based on general techniques for solving time dependent advection-diffusi...
The Integration of Network-Based Models for Spill Response and Homeland Security
Drinking water distribution waste water collection source water hydraulic modeling
2009/1/9
The integration of three hydraulic GIS (Geographic Information System) applications is presented which represent the water infrastructures of cities and urban areas and US streams and rivers. The wate...
The Integration of Network-Based Models for Spill Response and Homeland Security
Drinking water distribution waste water collection source water hydraulic modeling
2009/1/13
The integration of three hydraulic GIS (Geographic Information System) applications is presented which represent the water infrastructures of cities and urban areas and US streams and rivers. The wate...
Simulation of Wind Field in Tehran Using Hybrid Diagnostic and Prognostic Models
Wind field simulation continuity equation mass consistence
2009/1/8
This article concentrates on Wind Field Simulation in a mega city such as Tehran which is home to nearly 10 million inhabitants. The necessity of having a comprehensive knowledge about the wind field ...
Prediction of the Daily Mean PM10 Concentrations Using Linear Models
PM concentrations multiple linear regression principal component regression independent component regression quantile regression partial least squares regression
2009/1/4
The performance of five linear models to predict the daily mean PM10 concentrations was compared. The linear models proposed were: i) multiple linear regression; ii) principal component regression; ii...
A Sensitivity Study of the Validation of Three Regulatory Dispersion Models
Lidar ISC AERMOD UK-ADMS plume parameters regulation air quality
2008/12/18
Lidar measurements were made of the dispersion of the plume from a coastal industrial plant over three weeks between September 1996 and May 1998. 67 experimental runs were obtained, mostly of 30 min d...