Lower Granite Fish Guidance Efficiency System Model Study?Snake River, Washington
With the annual migration of adult salmon up the Columbia and Snake Rivers and the migration of their offspring (juvenile salmon) downstream to the ocean, new problems have developed with...

An Update on the U.S. DOE Ocean Energy Program
This paper summarizes recent research accomplishments of the program and provides a synopsis of planned activities leading to a Net Power-Producing Experiment (NPPE), to be conducted at...

Ocean Energy Activities in Europe
This paper reviews European research and development in wave energy, ocean thermal energy conversion (OTEC), and ocean tidal power. For each technology, a country-by-country summary (in...

Study on Pneumatic Wave Power Conversion System with the Water Valve Rectifier
We experimentally and theoretically studied the energy conversion characteristics on a new type of wave power conversion system with water valves. The hydraulic model experiment was performed...

Theoretical Study on Capture Chamber with Lateral Entrance
A capture chamber with lateral entrance can be used in a pneumatic wave energy conversion system. In this paper, the output power coefficients of the capture chamber have been calculated...

Power Conditioning Options for Variable-Speed Ocean Energy Conversion Systems
As part of a recent wave energy feasibility study for the coast of North Carolina (SEASUN Power Systems, 1988), a survey was conducted of power conditioning and transmission technology....

Pre-Experiments of OTEC Experimental Facility for Ocean-Based Mariculture-OTEC Pilot Plant Houyou
The ocean-based mariculture-OTEC pilot plant 'HOUYOU' was completed in March, 1989 and the at-sea test in Toyama Bay was carried out from July 18th until September...

OTEC's subsurface discharges of Deep Ocean Water: Modelling Their Effects on the Primary Production
The French project of a shore-based OTEC pilot plant (5 MW) at Tahiti gave the opportunity of simulating the ecological effects of a small, man-made upwelling in coastal-tropical oligotrophic...

A 250 KW Closed Cycle Land Based Ocean Thermal Energy Plant
The paper describes the design of a 250 KW land based closed cycle Ocean Thermal Energy Plant suitable for installing at Keahole Point in Hawaii. The work is being done for ALCAN International....

Overview: Steam-Water Phase Change in OTEC Systems
This paper presents an overview of the thermodynamics and the heat and mass transfer processes occurring in OTEC systems utilizing seawater as the working fluid....

Seawater Experimental Results of Direct-Contact Condensation for OC-OTEC Applications
Tests of a direct-contact condenser (DCC) for open-cycle ocean thermal energy conversion systems (OC-OTEC) have been conducted using seawater and exchanging up to 1.25 MWth...

Noncondensable Gas Composition and Outgassing Rates in the Open-Cycle OTEC System with Direct-Contact Condensation
This paper will present the results of recent measurements of noncondensable release from an open-cycle ocean thermal energy conversion (OC-OTEC) system in a direct-contact condensation...

De-Aeration and Re-Injection of Noncondensable Gases in Open-Cycle OTEC
Non-condensable gas exchange characteristics in seawater and fresh water are compared and contrasted. The higher rate of exchange observed for these gases in seawater is incorporated in...

Carbon Dioxide Release from OTEC Cycles
This paper presents the results of recent measurements of CO2 release from an open-cycle ocean thermal energy conversion (OC-OTEC) experiment. Based...

Large Stone Hot Mix Asphalt: State of the Art
Improved mix characteristics can be achieved by utilizing existing well-known technologies. Developments have included: more attention to voids in mineral aggregate criteria; adjusting...

SHRP Program: Asphalt Durability and Specification
The goals of the Strategic Highway Research Program (SHRP) program are an improved specification for asphalt binders and accelerated performance tests that can be employed by user agencies...

Improved Prediction of Masonry Durability Through Advanced Materials Science Methods
Several trends in the use of materials in civil engineering have made it imperative to improve the ability to predict the durability of masonry. This will require more emphasis on materials...

Premature Failures of Outdoor Masonry Pavements
The authors have investigated and repaired a number of premature inservice failures of masonry paving systems in recent years. These systems have become common, built over underground...

Performance of Latex-Modified Thin-Set Mortars in Applications of Thin-Brick Veneer
The use of field-applied polymer-modified mortars for adhering thin brick or tile to building exteriors has become increasingly common in the last decade. The latex-modified mortars can...

Are ASTM Standards Enough?
ASTM (American Society for Testing and Materials) is most likely the World's most renown developer of voluntary consensus standards. Its standards development process utilizes...

 

 

 

 

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