A Multiple Disk Centrifugal Pump as an Artifical Ventricle
A pulsatile, multiple disk, centrifugal pump has been analysed and tested for potential use as an artificial ventricle. The pump is similar to a Tesla Turbine design which consists of...

Circulation Modelling and Water Quality Prediction
A circulation and water quality modelling system for use in areas where horizontal transport is dominating is presented. The water quality can either be described as BOD-DO processes or...

Tide- and Wind-Driven Flushing of Boston Harbor, Massachusetts
The flushing of Boston Harbor, a shallow, tidally dominated embayment with little fresh water input, is investigated using a depth-averaged model. The modeled tidal currents exhibit strong...

DYNLET1: Network Model for Tidal Inlet Dynamics
This paper introduces DYNLET1, an efficient, versatile, and accurate one- dimensional numerical model for computing tidal flow in a system of interconnecting channels and bays. Drawing...

Coastal Engineering Practice
This proceedings contains 70 papers presented at the American Society of Civil Engineers Specialty Conference Coastal Engineering Practice '92 held at Long Beach, California,...

Engineering Answers to Groundwater Impact Questions Using a Geographic Information System (GIS)
Environmental concerns have raised complex questions about the impacts of increased groundwater levels adjacent to navigational pools along the Red River, Louisiana. Previous studies had...

Securing Strategic National Security Objectives Through Maritime Activities
The President's national security strategy envisions a healthy and growing economy, wise environmental stewardship and a strong military as part of his plan to meet and to fulfill the...

Risky Business: Can We Believe Port Risk Assessments?
What is the risk that a maritime incident resulting in catastrophic consequences (environmental damage or loss of life) could occur in a U.S. port or waterway? How does one calculate the...

Los Angeles-Long Beach Harbors Model Enhancement Program
In response to the expansion of oceanborne world commerce, the Ports of Los Angeles and Long Beach, California, in coordination with the Los Angeles District of the U.S. Army Corps of...

Ship Simulation of the Houston Ship Channel, Houston, Texas
The Houston Ship Channel (HSC) consists of approximately 65 miles of improved deep-draft channels. The present channel is 400 ft wide and 40 ft deep at mean low tide for most of the channel...

Multiuser Sites for Contaminated Sediment Disposal
The Washington Department of Ecology (WDOE) recently adopted a program to identify, rank, and clean up contaminated sediment sites in Puget Sound. Site cleanup, in conjunction with dredging...

The Changing Alliance Between Navigational and Environmental Interests in the ACF Basin
Structural modifications imposed on the Apalachi-cola River for navigation, their environmental impacts and government actions to address these impacts are reviewed. Past structural modifications...

Return Flows in Large Rivers Associated with Navigation Traffic

Water Conservation at the Antarctic Wasa Base - Results 1989-90
The Swedish WASA base was erected in the Norwegian sector of Antarctica during the 1988-89 summer season. The base was on a nunatakk and consisted of a dwelling house with full living...

The River Ice Management (RIM) Program: Developing New Options for Waterways Operations in Winter
Most of the navigable inland waterways of the United States are utilized year-round. In northern portions of this network (mainly parts of the Ohio and Upper Mississippi River basins),...

Trouble on the Waterways?
Crumbling highways and bridges can cripple the U.S. economy. A lesser known transportation problem is the condition of our inland waterway system. Waterways are a cost-efficient, environmentally-sound...

The PowerBargeTM for Lock/Dams on Inland Waterways
Following a brief description of the prefabricated floating PowerBarge concept, the range of application and expected cost and time savings is presented. Environmental benefits are described...

Reviewing the History and Activity of FERC
Since passage of the Federal Water Power Act in 1920 (Part I of the Federal Power Act, 16 U.S.C. 791a et seq.), Congress has required those seeking to construct, operate, or maintain hydroelectric...

A Multilevel Optimal Control Algorithm for Real-Time Water Resources Management
The real-time, dynamic operation of an existing system of reservoirs, advanced wastewater treatment plants, navigation locks and natural steam channels is formulated as a continuous, distributed...

Optimal Scheduling of Advanced Maintenance Dredging
This brief article discusses conventional and new procedures for nourishment of beaches taking advantage of recent years' development of more effective equipment of smaller...

 

 

 

 

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