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Conference Papers

Browse almost 5,000 conference papers authored by our scientists and refine search by topic, location, year, and advanced search.

Filter Total Items: 5326

A stratified-cluster sampling procedure applied to a wildland vegetation inventory using remote sensing

No abstract available.
Authors
W. G. Rohde, W. A. Miller, K. G. Bonner, E. Hertz, M. F. Engel

Forest stand classification in western Washington using Landsat and computer-based resource data

No abstract available.
Authors
G. R. Johnson, E. W. Barthmaier, T. W. D. Gregg, R. E. Aulds

Altitude-age relationships of the lunar maria

Altitudes and relative ages of mare surface units were compared to test if a systematic correlation in height of lava eruption surfaces and age might reflect a corresponding increase in depth of the magma chamber with time; in addition the altitudes were studied to shed light on the time and place of warping of mare surfaces. The laser altimeter data from the Apollo missions and relative age data
Authors
Baerbel K. Lucchitta, J. M. Boyce

Biogenic and thermogenic gas in gas-charged sediment of Norton Sound, Alaska

Chemical and isotopic compositions of sediment gas from Norton Sound have been determined for near-surface, gas-charged sediments at two sites identified in acoustic profiles and bottom observations. At one site air-driven vibracorer penetrated sediment saturated with methane. The isotopic value suggests that the methane originated from active biological processes operating on peat in the top 4 m
Authors
Keith A. Kvenvolden, C.H. Nelson, D.R. Thor, Matthew C. Larsen, G.D. Redden, J. B. Rapp, D. J. Des Marais

Digital image processing system For Landsat 3

The Department of Interior (DOI) and the National Aeronautics and Space Administration (NASA) have entered into a joint program to provide a digital image processing system in support of the Landsat 3 mission. NASA will provide the data reception and pre-processing facilities, while the DOI provides the production image processing system that generates film products and computer compatible tapes f
Authors
George Harris

Excretion of the lampricide Bayer 73 by rainbow trout

Urinary excretion of the 2-aminoethanol salt of 2′, 5-dichloro-4′-nitrosalicylanilide (Bayer 73) in rainbow trout (Salmo gairdneri) was measured after exposure of the trout to Bayer 73 and also after intraperitoneal (ip) injection of the lampricide. Fish exposed to 0.05 mg/litre of Bayer 73 for 12 h quickly began to excrete residues in the urine. The largest amount of Bayer 73 was excreted during
Authors
J. L. Allen, V. K. Dawson, J. B. Hunn

An erythroleukemic-like disease in fish

No abstract available 
Authors
J.R. MacMillan, M. Landolt, D. Mulcahy

b values and ω−γ seismic source models: Implications for tectonic stress variations along active crustal fault zones and the estimation of high-frequency strong ground motion

In this study the tectonic stress along active crustal fault zones is taken to be of the form , where  is the average tectonic stress at depth y and Δσp(x, y) is a seismologically observable, essentially random function of both fault plane coordinates; the stress differences arising in the course of crustal faulting are derived from Δσp(x, y). Empirically known frequency of occurrence statistics,
Authors
Thomas C. Hanks

Better utilization of ground water in the Piedmont and mountain region of the southeast

The development of water supplies for domestic consumption, and for those commercial and industrial uses requiring relatively pure water, has followed a pattern in the Piedmont and mountain areas of the southeast similar to that in most other humid areas. The first settlers utilized seepage springs on hillsides. Such springs occur along steep slopes where the water table intersects the land surfac
Authors
Ralph C. Heath