Resolving the Stream Depletion Model Paradox: Theory of Depletion with Stream Drawdown near a Pumping Well

2021 ◽  
Author(s):  
Bwalya Malama ◽  
Ye-Chen Lin
Ground Water ◽  
2006 ◽  
Vol 44 (4) ◽  
pp. 540-546 ◽  
Author(s):  
Hilary K. Lough ◽  
Bruce Hunt

2019 ◽  
Vol 23 (3) ◽  
pp. 397-418 ◽  
Author(s):  
Goran Calic ◽  
Sebastien Hélie ◽  
Nick Bontis ◽  
Elaine Mosakowski

PurposeExtant paradox theory suggests that adopting paradoxical frames, which are mental templates adopted by individuals in order to embrace contradictions, will result in superior firm performance. Superior performance is achieved through learning and creativity, fostering flexibility and resilience and unleashing human capital. The creativity mechanism of paradox theory is limited by a few propositions and a rough underlying theoretical logic. Using the extant theoretical base as a platform, the paper aims to develop a more powerful theory using a computational simulation.Design/methodology/approachThis paper relies on a psychologically realistic computer simulation. Using a simulation to generate ideas from stored information, one can model and manipulate the parameters that have been shown to mediate the relationship between paradoxes and creative output – defined as the number of creative ideas generated.FindingsSimulation results suggest that the relationship between paradoxical frames and creative output is non-monotonic – contrary to previous studies. Indeed, findings suggest that paradoxical frames can reduce, rather than enhance, creative output, in at least some cases.Originality/valueAn important benefit of adopting paradoxical frames is their capacity to increase creative output. This assumption is challenging to test, because one cannot measure private cognitive processes related to knowledge creation. However, they can be simulated. This allows for the extension of current theory. This new theory depicts a more complete relationship between paradoxical frames and creativity by accounting for subjective differences in how paradoxical frames are experienced along two cognitive mechanisms – differentiation and integration.


2010 ◽  
Vol 7 (2) ◽  
pp. 2347-2371 ◽  
Author(s):  
◽  
◽  
◽  

Abstract. The stream depletion rate (SDR) associated with pumping from vertical wells located in an aquifer is commonly estimated, where a large drawdown near the well may, however, be produced. In this paper, the solution is first developed for describing the groundwater flow associated with a point source in a confined aquifer near a stream. Based on the principle of superposition, analytical solutions for horizontal and slanted wells are then developed by integrating the point source solution along the well axis. The solutions can be simplified to quasi-steady solutions by neglecting the exponential terms to describe the late-time drawdown, which can provide useful information in designing horizontal well location and length. The direction of the well axis can be determined from the best SDR subject to the drawdown constraint. It is found that hydraulic conductivity in the direction perpendicular to the stream plays a crucial role in influencing the time required for reaching quasi-steady SDR. In addition, the effects of the well length as well as the distance between the well and stream on the SDR are also examined.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Ralph Kober ◽  
Paul J. Thambar

PurposeThis paper presents paradox theory as a useful theoretical lens for researchers exploring crises such as coronavirus disease 2019 (COVID-19). The authors argue that paradox theory, which emphasizes a “both/and” as opposed to an “either/or” approach, is ideally suited for management control systems (MCS) research on crises.Design/methodology/approachThe authors adopt a revelatory case approach to provide empirical examples of the insights that paradox theory can provide.FindingsThis paper highlights how MCS can be used to simultaneously manage short-term/operational and long-term/strategic objectives to navigate a crisis. Furthermore, it highlights how MCS can be mobilized during crises to identify and embrace opportunities.Practical implicationsThis paper illustrates the importance of MCS focusing on not just the short-term, but also the long-term, and managing multiple objectives in assisting organizations to survive crisis.Originality/valueThis paper highlights the benefits of using paradox theory to understand the role of MCS in helping organizations manage crises and to use a crisis as a source of opportunity.


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