Stochastic Optimal Control for Determination of Freshwater Inflows to Estuaries
The objective of the research is to develop estuarine system management models based upon discrete-time stochastic optimal control. An analytical feedback control law is given. The control...
Parallel SDP for Multi-Reservoir Management
The use of stochastic dynamic programming (SDP) for solving water resources problems has been restricted to problems with low dimension due to the 'curse of dimensionality'. Algorithm...
Evaluating the Steady State Stochastic Dynamic Programming Model for the High Aswan Dam
The paper describes the results of a study to critically evaluate and test the Steady State Stochastic Dynamic Programming model (SSDP). Whenever a reservoir computer model is developed,...
State and Resource Based Construction Process Simulation
Stroboscope is a programming language for construction process simulation. The programming language provides access to the state of the simulation and to the properties of resources. It...
Multi-Objective Optimization of Construction Schedules
This paper focuses on the multi-objective deterministic and stochastic modelling and optimization of construction tasks scheduling. Of particular importance is a frequency need to satisfy...
Multimedia Technologies for Civil and Construction Engineering Professional Practice
Multimedia can be classified as any experience or application that uses two or more media to convey a message or achieve a given purpose. Some of the main types of possible applications...
Strengthening the Design/Construction Interface Using Electronic Imaging, Document Management and Work Flow Technologies
The paper describes a conceptual approach for the implementation of document imaging systems as a mechanism for strengthening the design/construction interface. The paper discusses some...
Computer Modelling of Comminuting Granular Media
Using generalized continuum mechanics, generalized damage theories for granular materials in comminution processes are proposed. The generalization is accomplished by treating the average...
Overlaying Digital Images with 3-D CAD to Document as Built Construction
A persistent problem in construction has been documenting changes which occur in the field and preparing as-built drawings. The accuracy and completeness of field measurements is often...
Graphic Visualization for Planning Heavy Lifts
The application of graphical visualization to construction can serve a wide variety of objectives and offers many significant benefits. Heavy lifts are an important component of industrial...
MoveCapPlan: In Integrated System for Planning and Controlling Construction Material Laydown and Handling
This paper focuses on modeling and improving flow. It presents a computer-based system for planning and controlling construction material laydown and handling. This system, named MoveCapPlan;...
Influence of Spatially Random Soil Stiffness on Foundation Settlements
The effect of stochastic soil stiffness on the total settlement under the corner of a uniformly loaded flexible strip footing has been studied. The generated Young's modulus random fields...
Comparison of Biological and Chemical/Physical Iron Removal
The report compares the efficiency of chemical/physical and biological iron removal processes during the entire filter cycle. The results of the first three pilot studies performed in...
Filtration and Backwashing Performance of Biologically-Active Filters
Before widespread use can be made of biological filters, it is crucial to develop an understanding of the filtration and backwashing performance of these filters. Experimental results...
Effect of Sludge Blend on Dewatering Characteristics
This study compares the performance of high solids centrifuges when processing anaerobically digested and undigested mixture of primary sludge and waste activated sludge, in order to evaluate...
Reducing Wastewater Sludge Pathogens Using Heat Treatment
The feasibility of using waste heat to reduce pathogen densities in wastewater sludge at a municipal wastewater treatment plant was investigated. Two modifications to an existing two stage...
Optimization Studies of Anaerobic Expanded Bed Reactor Pretreatment of Domestic Wastewater
In recent years the advent of the anaerobic expanded bed reactor (AEBR) has made possible the treatment of wastewaters of comparatively lower strength than have traditionally been treated...
Biotransformation of Pesticides in Simulated Groundwater Columns
Experiments were performed to investigate the biotransformation of the pesticides alachlor, propachlor, atrazine, and bromacil under aerobic and nitrate-reducing conditions. Glass bead...
Ozonization of Anaerobic Sludge Dewatering Centrate for Ammonia Removal
Semi-batch ozonation experiments were carried out on settled anaerobic sludge dewatering centrate. The observed rate of ammonia decay at pH ranging between 7.5 and 8.5 was much slower...
Biological Upflow Fluidized Bed Denitrification Reactor Demonstration Project-Stamford, Ct.
Results of a demonstration project using a biological upflow fluidized bed reactor to remove nitrogen from wastewater treatment plant effluent are described. The reactor was operated at...
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