Month

A system for obtaining high-integrity borehole fluid samples (open access)

A system for obtaining high-integrity borehole fluid samples

"The following five operational subsystems of the sampling system are discussed in succeeding sections: Downhole probe and Packer Subsystem, Pump Actuator Subsystem, Cable Winch and Pulley Bridge Subsystem, Instrumentation Subsystem, Power Supply Subsystem."
Date: June 1983
Creator: Roberts, Eugene H.
System: The UNT Digital Library
Preliminary Overburden Characterization at Richton Dome (open access)

Preliminary Overburden Characterization at Richton Dome

From introduction: "The following report documents the a preliminary evaluation of the geologic, geotechnical, and hydrologic conditions for the overburden materials above Richton Dome."
Date: June 1983
Creator: Ertec, Inc.
System: The UNT Digital Library
Mean Annual Runoff and Peak Flow Estimates Based on Channel Geometry of Streams in Northeastern and Western Montana (open access)

Mean Annual Runoff and Peak Flow Estimates Based on Channel Geometry of Streams in Northeastern and Western Montana

From introduction: The purpose of this report is to provide methods for estimating mean annual runoff and peak discharges for ungaged streams in northeastern and western Montana.
Date: June 1983
Creator: Parrett, Charles; Omang, R. J. & Hull, J. A.
System: The UNT Digital Library
Water-Quality Assessment of Francis E. Walter Reservoir, Luzerne and Carbon Counties, Pennsylvania (open access)

Water-Quality Assessment of Francis E. Walter Reservoir, Luzerne and Carbon Counties, Pennsylvania

Objectives and scope: The principal objectives of this study were to assess the past and current water quality of the impoundment, its major tributaries, and its discharge, and to address the environmental impact of raised pool levels. Data collection was directed toward documenting the temporal and spatial variations in physical, chemical, and biological characteristics of the water, to estimate annual nutrient and suspended sediment loading, and to determine the algal biomass, dominant genera, algal growth potential, and limiting nutrient.
Date: June 1983
Creator: Barker, James L.
System: The UNT Digital Library
Artificial Recharge in the Northern Part of Chino Ground-Water Basin, Upper Santa Ana Valley, California (open access)

Artificial Recharge in the Northern Part of Chino Ground-Water Basin, Upper Santa Ana Valley, California

Purpose and Scope: The purpose of this study was to evaluate the geohydrologic characteristics that influence sustained artificial recharge and to determine long-term infiltration rates in the northern part of Chino ground-water basin. Results of this study will help management to design and implement a recharge-recapture system in Chino Basin. Nine test holes were drilled, long-term infiltration tests were made, and drillers' logs and water-level data were evaluated to determine the probable effects of recharging the ground-water basin. The study was concentrated in the northern part of Chino Basin, where recharge is proposed.
Date: June 1983
Creator: Koehler, J. H.
System: The UNT Digital Library
Optical Time-Domain Reflectometer Performance and Calibration Studies (open access)

Optical Time-Domain Reflectometer Performance and Calibration Studies

from Introduction: The measurement accuracy of the optical time-domain reflectometer (OTDR) is restricted in some applications by a limited operational dynamic range and by a lack of standardized test procedures. In an effort to better understand these restrictions, we have measured the range of linearity of some avalanche photodiodes used as backscatter detectors. Also, the effect of input launch conditions is examined and a possible standardized OTDR test procedure is proposed. Using these suggestions, we have made comparisons between attenuation values determined by cutback and backscatter methods and found that good agreement is possible. Finally, some methods are described for checking the response. linearity of OTDR systems.
Date: June 1983
Creator: Danielson, B. L.
System: The UNT Digital Library
Energy Related Use Conflicts for the Columbia River Estuary, Volume 2: Atlas (open access)

Energy Related Use Conflicts for the Columbia River Estuary, Volume 2: Atlas

"This volume consists of 3 overviews, an index to the quadrants, and a series of 11 scenario maps that forecast energy related developments of the Lower Columbia River and Estuary from 1981 to 2006."
Date: June 1983
Creator: U.S. Fish and Wildlife Service
System: The UNT Digital Library
Mission Bay Harbor, California, Design for Wave and Surge Protection and Flood Control: Hydraulic Model Investigation (open access)

Mission Bay Harbor, California, Design for Wave and Surge Protection and Flood Control: Hydraulic Model Investigation

Partial abstract: A 1:100-scale (undistorted) hydraulic model, reproducing Mission Bay Harbor, approximately 3 miles of shoreline, and sufficient offshore area to permit generation of the required test waves, was used to investigate the arrangement and design of proposed structures for (a) improving hazardous entrance conditions, (b) reducing surge inside the harbor, and (c) eliminating potential flood hazards. The original proposal for harbor improvement consisted of a 2,200-ft-long offshore breakwater. The proposed structures for river flood control consisted of (a) a 1,200-ft-long weir in the middle jetty, (b) various south jetty extensions, and (c) diversion dikes on the middle jetty.
Date: June 1983
Creator: Curren, Charles R.
System: The UNT Digital Library
Physics Division Annual Review: 1 April 1982-31March 1983 (open access)

Physics Division Annual Review: 1 April 1982-31March 1983

The research program in nuclear physics in the Physics Division spans a broad range of activities and contributes to many of the major questions in the discipline. Activities may be roughly divided into three broad categories. Research with the tandem-linac in heavy-ion physics is doing well, though laboring under severe budgetary constraints, and outside use of the facility has increased substantially. Progress on the construction of the full ATLAS facility is coming along expeditiously and it is expected to be completed on schedule in 1985. In medium-energy physics, activities are continuing at LAMPF, as well as other accelerators, though considerable effort was devoted this year to the preparation of a proposal for a national electron accelerator facility.
Date: June 1983
Creator: Gemmell, Donald S.
System: The UNT Digital Library
Thermal-Storage Device Based on High-Density Polyethylene: Interim Progress Report, June 1983 (open access)

Thermal-Storage Device Based on High-Density Polyethylene: Interim Progress Report, June 1983

Report discussing a project to design, build, and test a latent heat storage device using cross-linked, high-density polyethylene (HDPE). This report provides an update on progress up to the point that the device is ready to test.
Date: June 1983
Creator: Cole, Roger Lynn
System: The UNT Digital Library
Design Guide for Calculating Fluid Damping for Circular Cylindrical Structures (open access)

Design Guide for Calculating Fluid Damping for Circular Cylindrical Structures

Fluid damping plays an important role for structures submerged in fluid, subjected to flow, or conveying fluid. This design guide presents a summary of calculational procedures and design data for fluid damping for circular cylinders vibrating in quiescent fluid, crossflow, and parallel flow.
Date: June 1983
Creator: Chen, S. S.
System: The UNT Digital Library
Leakage-Flow-Induced Vibration of a Tube-in-Tube Slip Joint (open access)

Leakage-Flow-Induced Vibration of a Tube-in-Tube Slip Joint

The susceptibility of a cantilevered tube conveying water to self-excitation by leakage flow through a slip joint is assessed experimentally. The slip joint is formed by inserting a smaller, rigid tube into the free end of the cantilevered tube. Variations of the slip joint annular gaps and engagement lengths are tested, and several mechanisms for self-excitation are described.
Date: June 1983
Creator: Mulcahy, T. M.
System: The UNT Digital Library
Seasonal-Storage Solar-Energy Heating System for the Charlestown, Boston Navy Yard National Historic Park (open access)

Seasonal-Storage Solar-Energy Heating System for the Charlestown, Boston Navy Yard National Historic Park

This Phase II study provides further analysis for a seasonal-storage solar-heating system utilizing two existing underground, concrete tanks in the National Historic Park of the Charlestown Navy Yard in Boston. The initial Phase I study was reported in ANL-82-90. The new results focus on the effect of including a heat pump in the system to extend the useful heat-storage capacity of the tanks. The analysis was performed with MINSUN Version III, a computer simulation model written particularly for seasonal storage systems. Input parameters were derived in Phase I and reviewed and updated for this study. Three collector types were studied with and without a heat pump. Results indicate a definite performance and economic improvement for all collector types by including the heat pump. Flat plate collectors showed substantially greater improvement due to their more pronounced increase in efficiency at the lower inlet temperatures. With the heat pump, all three collectors provide comparable performance, and the flat plates were chosen as the design system due to their lower cost. A design system of 2300 meters sq. flat plate collectors with heat pump was selected. The system provides a solar fraction of 50% for the 2167 MWH annual heat load. The annualized …
Date: June 1983
Creator: Breger, Dwayne & Michaels, Allan I.
System: The UNT Digital Library
Endochronic Theory of Dynamic Viscoplasticity (open access)

Endochronic Theory of Dynamic Viscoplasticity

This report summarizes the work completed on a project concerned with engineering models in dynamic plasticity. The concept of the endochronic theory of viscoplasticity and its subsequent improvement are discussed briefly. Applications and extensions of the theory to various dynamic problems are presented. In particular, the strain-rate effect in the improved endochronic theory and its application to wave propagation problems are discussed. Comparing the numerical results with other calculations and experimental data, it appears that endochronic theory provides a promising representation of realistic material behavior. At the same time endochronic theory is often numerically more efficient than other formulations.
Date: June 1983
Creator: Lin, Hsuan-Chi
System: The UNT Digital Library
Energy Related Use Conflicts for the Columbia River Estuary, Volume 1: Text (open access)

Energy Related Use Conflicts for the Columbia River Estuary, Volume 1: Text

Report that "provides a narrative description of projected energy development and describes the biological characteristics of fish and wildlife and their habitats, and gives a critique of potential environmental impacts, and measures of protection and mitigation" (p. iii)
Date: June 1983
Creator: Garcia, John; Loehr, Lincoln; Richter, Klaus; Ahlborn, Gary; Westerlund, Frank & Pratt, Jeremy
System: The UNT Digital Library
Annual Variation of Temperature Field and Heat Transfer Under Heated Ground Surfaces (Slab-on-Grade Floor Heat Loss Calculation) (open access)

Annual Variation of Temperature Field and Heat Transfer Under Heated Ground Surfaces (Slab-on-Grade Floor Heat Loss Calculation)

Report issued by the National Bureau of Standards over studies conducted on sub-surface temperatures and heat transfer. Testing methods are discussed. This report includes tables, and illustrations.
Date: June 1983
Creator: Kusuda, Tamami; Piet, O. & Bean, J. W.
System: The UNT Digital Library