Groundwater contaminant boundary input flux estimation in a two-dimensional aquifer

Nauman, Malik Muhammad; Kim, Kyung Youn; Huang, Cheng Hung; Kim, Sin

doi:10.1016/j.jiec.2010.01.010

Cited by 8 publications

(2 citation statements)

References 15 publications

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“…This behavior again supports the explanation given for dual-region behavior as when the tip is very close to the substrate, there will not be enough flight time for the spray stream to orient in the two regions and hence the concentration difference between the two regions is very small. Inverse estimation techniques can be used to estimate the concentration distribution and is an interesting area of research when deployed for electrospray applications [30]. At a certain threshold distance, the concentrated area diameter gets constant and the mild area goes on increasing.…”

Section: Effect Of Standoff Distancementioning

confidence: 99%

Electrospray deposition of thin copper-indium-diselenide films

Choi

Nauman

Dang

et al. 2011

International Journal of Materials Research

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Electrospray deposition is fast finding application in the field of thin film device manufacturing processes. The ease and cost efficiency attached to electrospray deposition with possible integration with roll-to-roll fabrication lines is the potential future of thin film device manufacturing. In this study thin films composed of copper-indium-diselenide, more commonly known as CIS, have been made using the electrospray deposition of nano-particle based inks for the ultimate manufacture of CIS-based solar cells. It is the first time that a complete CIS layer has been deposited through electrospray in a single step without involving any other process. Deposited layers are thoroughly characterized using techniques such as scanning electron microscope, Xray diffraction and X-ray photoelectron spectroscopy. Moderate voltage requirements, dense, large grained, *1 lm thick layers and reasonable sintering temperatures involved in the electrospray deposition process promise the possible applicability of electrospray deposition in the manufacturing of cheap and easy to build solar cells.

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Section: Effect Of Standoff Distancementioning

confidence: 99%

Electrospray deposition of thin copper-indium-diselenide films

Choi

Nauman

Dang

et al. 2011

International Journal of Materials Research

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“…The problems of identifying groundwater contaminant source can generally be classified as (1) identifying source location problems (e.g., [8][9][10][11][12][13][14][15][16][17]), (2) recovering the release history problems (e.g., [5,[18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34]), and (3) identifying source location and recovering the release history problems simultaneously (e.g., [2,7,[35][36][37][38][39][40][41][42]).…”

Section: Introductionmentioning

confidence: 99%

Applying Hybrid Heuristic Approach to Identify Contaminant Source Information in Transient Groundwater Flow Systems

Yeh

Lin

Yang

2014

Mathematical Problems in Engineering

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Simultaneous identification of the source location and release history in aquifers is complicated and time-consuming if the release of groundwater contaminant source varies in time. This paper presents an approach called SATSO-GWT to solve complicated source release problems which contain the unknowns of three location coordinates and several irregular release periods and concentrations. The SATSO-GWT combines with ordinal optimization algorithm (OOA), roulette wheel approach, and a source identification algorithm called SATS-GWT. The SATS-GWT was developed based on simulated annealing, tabu search, and three-dimensional groundwater flow and solute transport model MD2K-GWT. The OOA and roulette wheel method are utilized mainly to reduce the size of feasible solution domain and accelerate the identification of the source information. A hypothetic site with one contaminant source location and two release periods is designed to assess the applicability of the present approach. The results indicate that the performance of SATSO-GWT is superior to that of SATS-GWT. In addition, the present approach works very effectively in dealing with the cases which have different initial guesses of source location and measurement errors in the monitoring points as well as problems with large suspicious areas and several source release periods and concentrations.

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Identification of groundwater contamination sources using a statistical algorithm based on an improved Kalman filter and simulation optimization

Wang

et al. 2019

Hydrogeol J

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Groundwater contaminant boundary input flux estimation in a two-dimensional aquifer

Cited by 8 publications

References 15 publications

Electrospray deposition of thin copper-indium-diselenide films

Electrospray deposition of thin copper-indium-diselenide films

Applying Hybrid Heuristic Approach to Identify Contaminant Source Information in Transient Groundwater Flow Systems

Identification of groundwater contamination sources using a statistical algorithm based on an improved Kalman filter and simulation optimization

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