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A Pilot Intelligent Decision-Support System for Reservoir Optimization
Various classes of knowledge used in reservoir design, planning and operations for improving the efficiency of the optimization processes are discussed in this paper. A prototype system...

Stochastic Dynamic Programming Applied to Multireservoir Systems
The main goal of this work was to develop a large scale optimization algorithm incorporating the principle that the uncertainty of future events increases with time. This principle governs...

Heuristics and Network Flow Algorithms for Multireservoir System Regulation
A generalized model employing a network flow algorithm and a heuristic database is being tested on the Qu'Appelle River basin in Canada. The heuristic database consisting...

Optimal Real-Time Pump and Irrigation Scheduling for Center-Pivot Sprinkler Systems
A comprehensive scheduling algorithm is presented for optimally integrating irrigation and pump operational decisions in center-pivot sprinkler systems. Dynamic programming successive...

A Real-time Approach to Groundwater Monitoring, Prediction, and Remediation
This paper outlines a integrated approach to the problem of predicting and controlling groundwater contamination. The key to this approach is to derive contaminant predictions by combining...

Problems Associated with Large Hydro Generators
Since the early 1950s, hydro generators have increased in size from the 50 MVA range to much larger units employed today, many of which are in excess of 500 MVA. Such a tenfold increase...

Vibration Analysis Using a Parallel Lanczos Method
A parallel eigenvalue solution algorithm, based on the Lanczos method, has been developed, implemented on a Flexible Computer FLEX/32 multi-processor, and applied to an example structural...

Concurrent Nullspace Methods for Multibody Systems
This paper presents a new concurrent multiprocessing algorithm for simulating the dynamics of constrained multibody systems. The systems considered are quite general in nature; they may...

Parallel Algorithms for Structural Optimization Under Dynamic Loading
Parallel algorithms and strategies are outlined for optimal design of frame structures subjected to dynamic earthquake loading. Parallelism is extracted in six areas: substructuring of...

A Vectorized Polynomial Preconditioned Conjugate Gradient Solver Package for the USGS 3-D Ground-Water Model
A vectorized polynomial preconditioned conjugate gradient (PPCG) numerical algorithm is presented as an additional solver package interfaced with the Modular Three-Dimensional Finite Difference...

Furrow Irrigation Performance Using Real Time Control
Computer simulations were conducted, using a simple feedback control algorithm, to determine the potential for improvement of irrigation performance using real-time feedback control. Field...

Simultaneous Releases from a Stratified Reservoir
The concept of simultaneously, selectively withdrawing water from multiple levels in a thermally, and therefore density, stratified reservoir is presented and its usefulness discussed....

Improved Robustness of the NWS DAMBRK Algorithm
The combination dam breach and flood routing numerical model called DAMBRK has been developed by the National Weather Service (NWS) for forecasting river flooding events (Fread, 1984)....

CWSI and Stomatal Resistance of Cotton and Soybeans
A new instrument, Scheduler(TRADEMARK), has been developed to measure the onset and duration of plant water stress. This device consists of a sensor package (containing an infrared thermometer,...

Estimating Firm Yield and Reliability of Small Reservoirs on Ungaged Streams in North-Central Montana
A reservoir-operation algorithm utilizing a sequence of monthly streamflows from a lag-one Markov model is proposed for estimating firm yield and reliability. The reservoir-operation algorithm...

Simulation Algorithms for Offshore Structures
A rational procedure for characterization of water depths for a random sea state is developed, in context with linearized wave theory. The importance of using the expressions for 'intermediate...

Freeway Analysis Using A Micro Version of FREQ
FREQ8PE is a freeway corridor simulation model. It is a batch processing mainframe program written in ASCII FORTRAN IV, which performs three basic functions: simulate freeway queueing,...

Engineering Optimization Via Genetic Algorithm
The application of a genetic algorithm (GA) to the optimal design of a ten member, plane truss is considered. Genetic algorithms are search procedures based upon the mechanics of natural...

Finite Element Software on a Multiprocessor
The continuing implementation and testing of finite element software on the Butterfly Parallel Processor is discussed. The Butterfly computer is a general purpose, shared memory machine...

Equation Solving on a Parallel Computer
The application of computers to the analysis of large structural systems is examined. The analysis procedure is presented as three distinct phases: (1) element formulation, (2) equation...

 

 

 

 

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