Now showing items 2721-2740 of 3360

    • Design Heuristic for Globally Minimum Cost Water-Distribution Systems 

      G. V. Loganathan; J. J. Greene; T. J. Ahn (American Society of Civil Engineers, 1995)
      Two standard test problems that are nonconvex with multiple local minima are considered. An outer flow search–inner optimization procedure is proposed for choosing better local minima. Each pipe network is judiciously ...
    • Markov Chain Model for Seasonal-Water Quality Management 

      Andrews K. Takyi; Barbara J. Lence (American Society of Civil Engineers, 1995)
      A nonstationary Markov chain approach to designing seasonal risk-equivalent water-quality management strategies is presented in this paper. Unlike many existing models for determining seasonal waste load allocations, this ...
    • Proposed Daily Streamflow-Forecasting Model for Reservoir Operation 

      Nien-Sheng Hsu; Jan-Tai Kuo; Wen-sen Chu; Youn-Jan Lin (American Society of Civil Engineers, 1995)
      Daily reservoir operations rely increasingly on accurate streamflow forecasts, which today are derived from computer modeling. This paper documents development of a hydrologic-process-based daily streamflow-forecasting ...
    • Water Transfers in Water Resource Systems 

      Jay R. Lund; Morris Israel (American Society of Civil Engineers, 1995)
      Water transfers are a common component of many regional water systems, and are increasingly being considered for meeting growing water demands and for managing the impacts of drought. Water transfers can take many forms ...
    • Water-Resources Management System for Saudi Arabia 

      Abdullah M. Mohorjy; Neil S. Grigg (American Society of Civil Engineers, 1995)
      Saudi Arabia faces severe water problems and needs new water policies to achieve sustainable development in its harsh environment. Problems include balancing supply and demand while facing aridity and water scarcity, ...
    • Frequency Estimation for Hydrological Samples with Zero Values 

      S. X. Wang; V. P. Singh (American Society of Civil Engineers, 1995)
      This paper develops an estimation method for discontinuous distributions used for fitting hydrologic series with several zero events. Such series are observed in arid and semiarid regions, and may include monthly precipitation ...
    • Seasonal Distribution of Heavy Rainfall Events in Midwest 

      James R. Angel; Floyd A. Huff (American Society of Civil Engineers, 1995)
      The seasonal distribution of extreme rainfall is important in hydrology and agriculture, especially in problems related to water control. The amounts at selected return periods vary by season and geographic location, as ...
    • Possible Climate-Change Impacts on Water Supply of Metropolitan Boston 

      P. H. Kirshen; N. M. Fennessey (American Society of Civil Engineers, 1995)
      A study of the possible impacts of climate change due to the equivalent of doubling the atmospheric CO
    • Implementing ASCE Water-Conservation Policy 

      Walter F. Anton (American Society of Civil Engineers, 1995)
      In April 1991, the ASCE's Board of Direction adopted the Water Conservation Policy Statement developed by the ASCE's National Water Policy Committee. The Board officially supports the conservation of water as an essential ...
    • Recommended Parameters to Report with BMP Monitoring Data 

      Ben R. Urbonas (American Society of Civil Engineers, 1995)
      This paper discusses the need for the reporting of a variety of physical, chemical, climatic, geological, biological, and meteorological parameters along with the data required by various investigators on the performance ...
    • Optimization of Transfers in Urban Water Supply Planning 

      Jay R. Lund; Morris Israel (American Society of Civil Engineers, 1995)
      A number of water supply agencies in the western United States have begun to integrate water transfers into their overall water supply planning, including the use of transferred water as an additional water source with ...
    • Erratum: 

      Gary L. Lewis (American Society of Civil Engineers, 1994)
    • Discrete Simulation Approach for Network-Water-Quality Models 

      Paul F. Boulos; Tom Altman; Pierre-Antoine Jarrige; Francois Collevati (American Society of Civil Engineers, 1995)
      An efficient system simulation methodology that solves the contaminant-transport problem in drinking-water-distribution systems is developed. The method can be effectively used for modeling the time-varying interaction of ...
    • Safe Yield of Aquifers 

      John C. Miles; Phillipe D. Chambet (American Society of Civil Engineers, 1995)
      Existing methods for determining the perennial safe yield of ground-water basins are examined in this paper. The inherent problems of these methods are described. A new method of estimating the safe yield is developed, ...
    • Sampling Design for Contaminant Distribution in Lake Sediments 

      Fethi Ben-Jemaa; Miguel A. Mariño; Hugo A. Loaiciga (American Society of Civil Engineers, 1995)
      A sampling design methodology for monitoring contaminant distribution in lake sediments is presented in this paper. Two optimization approaches are employed: a minimization of the variance of estimation approach and a ...
    • Wetlands Bureaucratic Wars: Courts May Shift Balance of Power 

      William R. Walker; Elizabeth Crumbley (American Society of Civil Engineers, 1995)
      The Federal Water Pollution Control Act, which later became the Clean Water Act, handles pollution from industrial and commercial discharges differently from dredge and fill pollution associated with waterway maintenance ...
    • Reliability of Flood Warning Systems 

      Roman Krzysztofowicz; Karen S. Kelly; Dou Long (American Society of Civil Engineers, 1994)
      Engineering planning and design of a local flood warning system should include a reliability analysis. The reliability of warnings can be quantified in terms of the relative operating characteristic—a relation between the ...
    • Optimal Control of Ground‐Water Quality Management: Nonlinear Programming Approach 

      S. Alireza Taghavi; Richard E. Howitt; Miguel A. Mariño (American Society of Civil Engineers, 1994)
      A management model is developed that uses a nonlinear programming approach to solve the optimal control problem of managing the generation and disposal of agricultural and dairy waste. The permissible controls are subject ...