Search Results - subject:"Source identification"

Disaggregate productivity growth sources of regional industries in China

Li, Lan-Bing; Zhang, Cong-Cong; Hu, Jin-li; Chiu, Ching-Ren - In: Empirical economics : a quarterly journal of the … 60 (2021) 3, pp. 1531-1557

Persistent link: https://www.econbiz.de/10012490603

Efficient Identification of Unknown Groundwater Pollution Sources Using Linked Simulation-Optimization Incorporating Monitoring Location Impact Factor and Frequency Factor

Datta, Bithin; Prakash, Om; Campbell, Sean; Escalada, Gerry - In: Water Resources Management 27 (2013) 14, pp. 4959-4976

This study aims to improve the accuracy of groundwater pollution source identification using concentration measurements … permissible monitoring locations. The designed monitoring network improves the results of source identification by choosing … show the efficiency in source identification when concentration measurements from the designed monitoring network are …

Persistent link: https://www.econbiz.de/10010794348

A semiparametric approach to source separation using independent component analysis

Eloyan, Ani; Ghosh, Sujit K. - In: Computational Statistics & Data Analysis 58 (2013) C, pp. 383-396

Data processing and source identification using lower dimensional hidden structure plays an essential role in many …

Persistent link: https://www.econbiz.de/10010595099

Optimal Dynamic Monitoring Network Design and Identification of Unknown Groundwater Pollution Sources

Datta, Bithin; Chakrabarty, Dibakar; Dhar, Anirban - In: Water Resources Management 23 (2009) 10, pp. 2031-2049

unknown source identification process to a large extent. Therefore coupled and iterative sequential source identification and … exchange of information between monitoring network and source identification methodology. The preliminary identification of … the first stage. Both the monitoring network and source identification process is repeated by sequential identification of …

Persistent link: https://www.econbiz.de/10010794492

Pollution source identification using a coupled diffusion model with a genetic algorithm

Khlaifi, Anis; Ionescu, Anda; Candau, Yves - In: Mathematics and Computers in Simulation (MATCOM) 79 (2009) 12, pp. 3500-3510

A new approach for the source quantification has been developed on the basis of real air pollutant hourly concentrations of SO2, measured by three monitoring stations, during 9h, around a group of three industrial sources. This inverse problem has been solved by coupling a direct model of...

Persistent link: https://www.econbiz.de/10010748671

Artificial neural network modeling for identification of unknown pollution sources in groundwater with partially missing concentration observation data

Singh, Raj; Datta, Bithin - In: Water Resources Management 21 (2007) 3, pp. 557-572

Groundwater pollution sources are characterized by spatially and temporally varying source locations, injection rates, and duration of activity. Concentration measurement data at specified observation locations are generally utilized to identify these sources characteristics. Identification of...

Persistent link: https://www.econbiz.de/10010847335

Identification of Pollution Sources in Transient Groundwater Systems

Mahar, Pooran; Datta, Bithin - In: Water Resources Management 14 (2000) 3, pp. 209-227

A methodology using a nonlinear optimization model is presentedfor estimating unknown magnitude, location and duration ofgroundwater pollution sources under transient flow and transportconditions. The proposed optimization model incorporates thegoverning equations of flow and solute transport as...

Persistent link: https://www.econbiz.de/10010997569