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- Dean A. Zimmerman, G. de Marsily, +18 authors Yoram Rubin
- 1998

This paper describes the first major attempt to compare seven different inverse approaches for identifying aquifer transmissivity. The ultimate objective was to determine which of several geostatistical inverse techniques is better suited for making probabilistic forecasts of the potential transport of solutes in an aquifer where spatial variability and… (More)

- Carl Axness, Jesús Carrera, Marti Bayer
- Computers & Geosciences
- 2004

- Carl Axness, Pablo Tornero, Jesús Ricote, Miguel Algueró
- Science
- 2003

- Carl Axness
- The American Mathematical Monthly
- 2002

When pumping from a single well in a real (heterogeneous) aquifer, the steady state drawdown at the well is proportional to the pumping rate through a value called the equivalent transmissivity, Tea, which, in short, is the value that best suits Thiem's formula. Equivalent transmissivity is not a local value, but some representative value of a certain area… (More)

- Carl Axness, Bert Kerr, Jean-François Chamayou
- The American Mathematical Monthly
- 2004

- Jason C. Verley, Eric R. Keiter, Charles E. Hembree, Carl Axness, Bert Kerr
- 2013 International Conference on Simulation of…
- 2013

Photocurrent generated by ionizing radiation represents a threat to microelectronics in radiation environments. Circuit simulation tools that employ compact models for individual electrical components (SPICE, e.g.) are often used to analyze these threats. Historically, many photocurrent compact models have suffered from accuracy issues due to the use of… (More)

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