| Toxic Hazards Research Unit Annual Report 1993 |
OCT 94 |
232 pages |
| Authors:
D. E. Dodd; P. M. Smith; MANTECH ENVIRONMENTAL TECHNOLOGY INC DAYTON OH
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 | This report presents a review of the activities of the Toxic Hazards Research Unit (THRU) for the period 0 1 October 1992 through 30 September 1993. The THRU conducts descriptive, mechanistic, and predictive toxicology research and toxicological risk assessments to provide data to predict health hazards and to assess health risks associated with human exposure to chemicals and materials associated with military systems and operational environments. The report includes summaries ... |
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| Sea Surface Environmental Conditions in the Gulf of Alaska during April 1990 Using SSM/I |
AUG 91 |
29 pages |
| Authors:
P. M. Smith; NAVAL OCEANOGRAPHIC AND ATMOSPHERIC RESEARCH LAB STENNIS SPACE CENTER MS
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| The Special Sensor Microwave Imager (SSM/I) is capable of mapping sea surface roughness characteristics and sea foam coverage from space in most weather conditions. The SSM/I also measures precipitation and water vapor content of atmosphere, providing a simultaneous weather analysis complementing the sea surface roughness measurements. This combination of measurements can provide input into numerical models of sound transmission in the ocean, particularly those incorporating forward scattering from the sea ... |
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| On the Introduction of Special Sensor Microwave Imager (SSM/I) Data into the Andes Acoustic Ambient Noise Model |
APR 91 |
25 pages |
| Authors:
P. M. Smith; NAVAL OCEANOGRAPHIC AND ATMOSPHERIC RESEARCH LAB STENNIS SPACE CENTER MS
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| The Special Sensor Microwave Imager (SSM/I) provides nearly global data coverage relating to sea surface roughness once every 24 hours. A quadratic retrieval algorithm is developed that can retrieve foam coverage and root-mean- square (rms) wave slope statistics from the SSM/I data: I show how that roughness product can be interpreted as a sound source for ambient noise. The Ambient Noise Directional Estimation System (ANDES) is modified for demonstration purposes ... |
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| Downdraw Extrusion of ULE(TM) Glass |
DEC 84 |
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| Authors:
P. M. Smith; C. E. Peters; CORNING GLASS WORKS CANTON NY
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 | This report documents an experiment to determine whether it is possible to extrude Ultra Low Expansion (ULE) silica glass. A heat cycle experiment was performed which demonstrated that the material could withstand the time/temperature cycle required in the appropriate chemical environments. Extrusion apparatus was then assembled, configured and tested. Two runs were made in which ULE was extruded. Although the results showed much scatter of the data, the mean properties ... |
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| A Laser Slope Guage and a Spar Buoy Wave Guage: Tools for the Validation of Microwave Remote Sensors |
DEC 84 |
28 pages |
| Authors:
P. M. Smith; C. S. Lin; NAVAL OCEAN RESEARCH AND DEVELOPMENT ACTIVITY NSTL STATION MS
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| Two devices designed to measure high frequency wave amplitude and slope are described: a spar buoy capacitance wave probe and a laser slope gauge. The spar buoy was equipped with a conventional capacitance wire probe while being tethered to a ship in coastal waters. The buoy demonstrated the capability for measuring wave height spectra at frequencies up to 2.5 Hz. The buoy hull responded weakly to the gravity wave field ... |
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| Dworshak Dam, North Fork Clearwater River, Idaho. Hydraulic Model Investigation |
SEP 1984 |
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| Authors:
P. M. Smith; H. P. Theus; L. Z. Perkins; ARMY ENGINEER DIV NORTH PACIFIC BONNEVILLE OR DIV HYDRAULIC LAB
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| Dworshak Dam, located on the North Fork of the Clearwater River near Orofino, Idaho, is the highest straight-axis concrete gravity dam in the United States (717 feet from foundation to 3,300-foot-long crest). The project includes a powerhouse for six Francis-type units (ultimate installation), a selective withdrawal structure upstream from the powerhouse intakes, two spillway bays and three regulating conduits that discharge into a stilling basin, an excavated exit channel, and ... |
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| Modification of Fish Ladders at John Day Dam Columbia River, Oregon and Washington. Hydraulic Model Investigation |
AUG 1984 |
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| Authors:
P. M. Smith; ARMY ENGINEER DIV NORTH PACIFIC BONNEVILLE OR DIV HYDRAULIC LAB
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| Prototype operation of the originally constructed fish ladders at John Day Dam revealed the need for ladder modifications to improve fish passage. A 1:10-scale model was used to evaluate the design modifications for both the north- and south-shore ladders. Improvements were desired in the flow-regulating sections at the fish counting station for both fish ladders. The model was instrumental in developing a successful modification to the Hell's Gate slot- orifice ... |
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| Modification of Fish Ladders at John Day Dam, Columbia River, Oregon and Washington; Hydraulic Model Investigation |
AUG 1984 |
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| Authors:
P. M. Smith; ARMY ENGINEER DIV NORTH PACIFIC BONNEVILLE OR DIV HYDRAULIC LAB
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| Prototype operation of the originally constructed fish ladders at John Day Dam revealed the need for ladder modifications to improve fish passage. A 1:10-scale model was used to evaluate the design modifications for both the north-and south-shore ladders. Improvements were desired in the flow-regulating sections and at the fish counting station for both fish ladders. The model was instrumental in developing a successful modification to the Hell's Gate slot- orifice ... |
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| Physical and Chemical Factors Affecting the Thermal IR Imagery of Ship Wakes |
26 JUL 1984 |
29 pages |
| Authors:
W. D. Garret; P. M. Smith; NAVAL RESEARCH LAB WASHINGTON DC
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| A thermal infrared scanner mounted in an NRL RP-3A images the turbulent wake of the USNS HAYES in the vicinity of Phelps Bank in the southeast region of Nantucket Shoals. Thermal surface effects were determined for both natural wakes and those treated with small quantities of an organic material which produced a monomolecular film(slick) on the surface of the turbulent wake. Relevant meteorological and oceanographic parameters were measured simultaneously from ... |
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| Cause and Effect of Shrinkage in Urea Based Foams, |
APR 80 |
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| Authors:
W. Timm; P. M. Smith
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| A method of measuring and reporting the shrinkage of urea-based foam insulation is described. Shrinkage is caused by a number of different effects, starting with the formulation of chemicals and ending with a rate of curing of the final foam. One of the most profound claims has been the derating of the thermal insulating value caused by the various assumed percentage of shrinkage. The models of these studies are discussed ... |
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| Outlet Works for Lost Creek Dam, Rogue River, Oregon. Hydraulic Model Investigations. |
OCT 1979 |
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| Authors:
T. D. Edmister ; P. M. Smith; ARMY ENGINEER DIV NORTH PACIFIC BONNEVILLE OR DIV HYDRAULIC LAB
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| Two 1:40-scale hydraulic models were used to study the outlet works for Lost Creek Dam. One model reproduced a portion of forebay, the selective withdrawal intake tower, regulating outlet valve section, tunnel, chute, energy dissipator, penstock intake and curve, powerhouse, and a section of downstream channel. The other model reproduced the tower bypass system. The intake tower, tunnel and penstock intakes, and penstock curve were satisfactory with all operating conditions ... |
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| Fish Ladder for Charles River Dam Charles River, Massachusetts. Hydraulic Model Investigation. |
DEC 1977 |
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| Authors:
L. Z. Perkins; P. M. Smith; ARMY ENGINEER DIV NORTH PACIFIC BONNEVILLE OREG DIV HYDRAULIC LAB
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| The design of a fish ladder that would operate with downstream tide fluctuations of 14 ft and upstream river fluctuations of 1 ft were developed in two hydraulic models. The hydraulic design of the ladder was developed in a 1:8-scale model. Hydraulic characteristics of a false weir at the upstream end of the ladder were studied in a 1:4-scale model. The ladder was intended to pass primarily shad and alewives. ... |
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| Outlet Works and Stilling Basin, Ririe Dam and Reservoir, Willow Creek, Idaho; Hydraulic Model Investigation. |
JAN 1972 |
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| Authors:
L. Z. Perkins; P. M. Smith; ARMY ENGINEER DIV NORTH PACIFIC BONNEVILLE OREG DIV OF HYDRAULIC LAB
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| Ririe Dam is a 251-ft-high rockfill embankment on Willow Creek near Idaho Falla, Idaho. Flow regulation is provided by an outlet works consisting of an intake tower, two 3.75-ft by 7.0-ft slide valves, an 8.0-ft-wide by 11.25-ft-high conduit, a 20.0-ft-wide by 74.66-ft-long stilling basin, and a riprapped exit channel with bottom as wide as the stilling basin. A portion of the forebay, the hydraulic structures, and 300 ft of exit ... |
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| Spillway Chute and Sluice Outlets, Wynoochee Dam and Reservoir, Wynoochee River, Washington; Hydraulic Model Investigations. |
FEB 1971 |
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| Authors:
T. D. Edmister; P. M. Smith; ARMY ENGINEER DIV NORTH PACIFIC BONNEVILLE OREG DIV OF HYDRAULIC LAB
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| The downstream portions of the spillway and regulating outlets and 720 ft of exit channel for Wynoochee Dam were reproduced in a 1:40-scale model to check performance of various elements of the project. Modifications to the left wall of the spillway chute did not provide satisfactory conditions for all discharges when equal quantities of flow passed through each gate. Acceptable flow conditions existed when the spillway design discharge of 52,500 ... |
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