Browse Illinois Water Resources Center by Title

  • Miller, Barbara A.; Wenzel, Harry G. (University of Illinois at Urbana-Champaign. Water Resources Center, 1984-09)
    The investigation of the low flow condition has become important in recent years as a means of determining critical levels of water pollution, aquatic habitat and instream flow needs. To assess these critical conditions, ...

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  • TerHaar, Monte J.; Herricks, Edwin E. (University of Illinois at Urbana-Champaign. Water Resources Center, 1989-10)
    Drainage improvements in agricultural watersheds have extensively modified midwestern streams and rivers and the flora and fauna associated with these water resources. The alteration of low order streams in Central Illinois ...

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  • Maxwell, W. Hall C.; Snorrason, Arni (University of Illinois at Urbana-Champaign. Water Resources Center, 1981-01)
    Previous measurements of the velocity field in the vicinity of two intersecting submerged turbulent jets provided evidence that, contrary to the usual assumptions, intersecting flows may not necessarily be combined using ...

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  • Ando, Amy W.; Londoño, Catalina (University of Illinois at Urbana-Champaign. Water Resources Center, 2013)

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  • Wang, Raymond Chun-Tsung; Wenzel, Harry G., Jr. (University of Illinois at Urbana-Champaign. Water Resources Center, 1970-01)
    This report represents a first step in the theoretical analysis of sheet flow with rainfall impinging on the free surface. This is a common occurrence in urban areas and many design procedures do not recognize the added ...

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  • Booth, Alfred W.; Voeller, Don (University of Illinois at Urbana-Champaign. Water Resources Center, 1967-03)
    Drought invariably infers a shortage of moisture in one context or another, wherein a situation of stress evolves; and attempts have been made to develop a procedure whereby the relative and absolute impact of this phenomenon ...

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  • Maxwell, W. Hall C.; Chang, Kuo-Cheng (University of Illinois at Urbana-Champaign. Water Resources Center, 1971-07)
    This analytic study used a generalization of Reichardt's hypothesis by Alexander, Baron & Comings to develop a unified treatment for the synthesis of diffusion patterns for mass, heat and momentum. The technique was applied ...

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  • Wenzel, Harry G.; Mathews, Michael J. (University of Illinois at Urbana-Champaign. Water Resources Center, 1968-01)
    The application of a method of velocity determination in an open channel using a microscope and camera to record the motion of small particles suspended in water is described. Velocity measurements were made in a series ...

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  • Wenzel, Harry G.; Chang, Kuo C. (University of Illinois at Urbana-Champaign. Water Resources Center, 1970-04)
    A method for velocity measurement is described which employs a microscope and high speed motion picture camera to record the motion of small tracer particles suspended in the flow. The procedure, termed the image method, ...

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  • Thacker, William E.; Snoeyink, Vernon L.; Crittenden, John C.; William E. Thacker, Vernon L. Snoeyink, John C. Crittenden (University of Illinois at Urbana-Champaign. Water Resources Center, 1981-07)
    A mathematical model of fixed-bed adsorption was used to predict the bed response to a sustained step change in influent concentration. The model was employed to compare the performance of different adsorbents in the removal ...

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  • Alavian, Vahid; Broeren, Sally M.; Bintz, David W. (University of Illinois at Urbana-Champaign. Water Resources Center, 1983-10)
    State-of-the-art of hydraulic and water quality modeling in streams and rivers does not include the role of large, slowly circulating regions in dilution and transport of effluents discharged in such water bodies. Examples ...

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  • Davenport, Lynn A.; Lembke, Walter D.; Jones, Benjamin A., Jr. (University of Illinois at Urbana-Champaign. Water Resources Center, 1973-03)
    The fate of nitrates as they travel through a long porous column at a slow rate was observed in this study with temperature and substrate materials variable. During a one month period of flow with pore velocities averaging ...

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  • Miller, Raymond J.; Overman, Allen R.; Peverly, John H. (University of Illinois at Urbana-Champaign. Water Resources Center, 1968-06)
    The flow of water through saturated samples of montmorillonite and kaolinite was studied to help clarify the existence and nature of non-Darcian flow. No threshold gradients were found in any of the samples studied. Non-Darcy ...

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  • Larson, T.E.; Henley, Laurel (University of Illinois Water Resources Center, 1966-06)

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  • Walker, P. N.; Thorne, M.D.; Benham, E.C.; Goetsch, W.D. (University of Illinois at Urbana-Champaign. Water Resources Center, 1981-04)
    This project investigated combinations of both irrigation and drainage treatments in order to determine the best water management practices for field crop production in claypan soils in the upper Midwest. Four years of ...

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  • Waterman, David M.; Garcia, Marcelo H.; Chow, Ven Te (University of Illinois at Urbana-Champaign. Water Resources Center, 2013-05)
    Meandering river migration over large spatial and temporal scales has traditionally been numerically simulated using a bank erosion submodel that calculates the eroding bank migration rate as the product of the near-bank ...

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  • Walker, Paul N.; Lembke, Walter D. (University of Illinois at Urbana-Champaign. Water Resources Center, 1977-01)
    The recycling agricultural runoff concept is the storage of excess water from agricultural land and using this water for irrigation of the same land when moisture supplies are low. Coincidentally, the system also recycles ...

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  • Suidan, Makram T.; Snoeyink, Vernon L. (University of Illinois at Urbana-Champaign. Water Resources Center, 1975-08)
    A surface reaction rate expression was developed to describe the heterogeneous reaction between aqueous free chlorine and granular activated carbon. This expression was then incorporated into a pore diffusion model and the ...

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  • Semmens, M.J. (University of Illinois at Urbana-Champaign. Water Resources Center, 1979-02)
    Previous studies demonstrated that ammonium saturated clinoptilolite may be regenerated by nitrifying bacteria if a base is added for pH control. The mechanism was identified to be ammonium release by ion exchange followed ...

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