Calculation of probabilities of transfer, recurrence intervals, and positional indices for linear compartment models. Environmental Sciences Division Publication no. 1544 (open access)

Calculation of probabilities of transfer, recurrence intervals, and positional indices for linear compartment models. Environmental Sciences Division Publication no. 1544

Six indices are presented for linear compartment systems that quantify the probable pathways of matter or energy transfer, the likelihood of recurrence if the model contains feedback loops, and the number of steps (transfers) through the system. General examples are used to illustrate how these indices can simplify the comparison of complex systems or organisms in unrelated systems.
Date: February 1, 1981
Creator: Carney, J. H.; DeAngelis, D. L.; Gardner, R. H.; Mankin, J. B. & Post, W. M.
Object Type: Report
System: The UNT Digital Library
Feasibility of large scale deliberate tracer release experiments in or below the oceanic thermocline (open access)

Feasibility of large scale deliberate tracer release experiments in or below the oceanic thermocline

The relative importance of lateral and vertical mixing in the interior of the oceans cannot be reliably determined from conventional oceanographic measurements, nor from observations of fallout radionuclides. It is suggested that the problem could be most effectively studied by an experiment in which a large quantity of a suitable tracer was deliberately released in deep water, and its subsequent dispersion was followed for at least one year. The feasibility of such an experiment is examined. It is concluded that it is indeed feasible, and that helium-3 would be the most suitable tracer, with tritium as a possible alternative. About 30 g f Helium-3 would be needed for each release. Such a quantity may be dissoled in about 1 m/sup 3/ of water at pressures greater than 500 dbar, is easily available, and would cost about $100K. Concentrations would have fallen to unmeasurable levels by the time the patch had spread sufficiently to interfere with measurements of natural or radiogenic helium-3. The patch would need to be marked with dusters of neutrally buoyant floats in order that its movement may be followed. It is estimated that it would be around 1000 km across after one year, and anything from a …
Date: February 1, 1981
Creator: Shepherd, J.G. & Broecker, W.S.
Object Type: Report
System: The UNT Digital Library
Geologic framework and hot dry rock geothermal potential of the Castle Dome area, Yuma County, Arizona (open access)

Geologic framework and hot dry rock geothermal potential of the Castle Dome area, Yuma County, Arizona

The Castle Dome Mountains and surrounding ranges constitute a voluminous pile of silicic volcanic rocks within the Basin and Range province of southwestern Arizona. Previously reported as Cretaceous and Quaternary in age, these volcanics all are of late Oligocene to early Miocene age as indicated by five new K-Ar dates. Reconnaissance field studies indicate that the volcanic section locally has undergone large rotations that contrast with the usual structural style of the Basin and Range and resemble the thin-skinned rotational tectonics documented for earlier, mid-Tertiary extensional deformation in ranges to the north and northeast. Significant geothermal potential of the Castle Dome area is suggested by a shallow depth to the Curie isotherm and by the apparent presence of a good electrical conductor at anomalously shallow depth in the crust. Warm wells exist in the area and Shearer (1979) reported a geothermal gradient of about 70/sup 0/C/km in a dry well near the center of the gravity low. Radiogenic heat production in the silicic batholith inferred above constitutes a reasonable candidate for a shallow regional heat source.
Date: February 1, 1981
Creator: Gutmann, J.T.
Object Type: Report
System: The UNT Digital Library
Advanced research and technology, direct utilization: recovery of minerals from coal fly ash. Fossil energy program. Technical progress report, 1 October 1980-31 December 1980 (open access)

Advanced research and technology, direct utilization: recovery of minerals from coal fly ash. Fossil energy program. Technical progress report, 1 October 1980-31 December 1980

The purpose of this research is to develop methods to process fly ash for the separation and use of an iron-rich fraction, for the recovery of metals, primarily Al and Ti, and for use of the process residues. Research during this report period of the HiChlor process for the extraction of alumina and titania by high-temperature chlorination of a fly ash-reductant mixture included investigation of the simulation of the reactions as a design tool, the assembly of a unit to measure reaction kinetic rates and particle specific surface areas and porosities, and the design of equipment to measure necessary chloride product separation data. A pretreatment chlorination reaction using CO and Cl/sub 2/ was found to be capable of removing 80% of the iron with only minimal alumina and silica reaction. Development of the lime-soda sinter process includes the collection of data on the phenomenon of auto-disintegration of lime-fly ash sinters. Results indicate that it is the presence of minor constituents having +5 pr +6 valence cations of a size that can enter the lattice of the calcium silicate which prevent sinter auto-disintegration.
Date: February 1, 1981
Creator: Burnet, G.; Weiss, S. J. & Murtha, M. J.
Object Type: Report
System: The UNT Digital Library
The Perry Daily Journal (Perry, Okla.), Vol. 88, No. 20, Ed. 1 Friday, February 27, 1981 (open access)

The Perry Daily Journal (Perry, Okla.), Vol. 88, No. 20, Ed. 1 Friday, February 27, 1981

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: February 27, 1981
Creator: Watson, Milo W.
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 88, No. 11, Ed. 1 Tuesday, February 17, 1981 (open access)

The Perry Daily Journal (Perry, Okla.), Vol. 88, No. 11, Ed. 1 Tuesday, February 17, 1981

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: February 17, 1981
Creator: Watson, Milo W.
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 88, No. 3, Ed. 1 Saturday, February 7, 1981 (open access)

The Perry Daily Journal (Perry, Okla.), Vol. 88, No. 3, Ed. 1 Saturday, February 7, 1981

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: February 7, 1981
Creator: Watson, Milo W.
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Clifton Record (Clifton, Tex.), Vol. 86, No. 7, Ed. 1 Thursday, February 12, 1981 (open access)

The Clifton Record (Clifton, Tex.), Vol. 86, No. 7, Ed. 1 Thursday, February 12, 1981

Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date: February 12, 1981
Creator: Smith, W. Leon
Object Type: Newspaper
System: The Portal to Texas History
The Clifton Record (Clifton, Tex.), Vol. 86, No. 8, Ed. 1 Thursday, February 19, 1981 (open access)

The Clifton Record (Clifton, Tex.), Vol. 86, No. 8, Ed. 1 Thursday, February 19, 1981

Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date: February 19, 1981
Creator: Smith, W. Leon
Object Type: Newspaper
System: The Portal to Texas History
The Perry Daily Journal (Perry, Okla.), Vol. 88, No. 19, Ed. 1 Thursday, February 26, 1981 (open access)

The Perry Daily Journal (Perry, Okla.), Vol. 88, No. 19, Ed. 1 Thursday, February 26, 1981

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: February 26, 1981
Creator: Watson, Milo W.
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 88, No. 9, Ed. 1 Saturday, February 14, 1981 (open access)

The Perry Daily Journal (Perry, Okla.), Vol. 88, No. 9, Ed. 1 Saturday, February 14, 1981

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: February 14, 1981
Creator: Watson, Milo W.
Object Type: Newspaper
System: The Gateway to Oklahoma History
Perry Daily Journal (Perry, Okla.), Vol. 87, No. 310, Ed. 1 Tuesday, February 3, 1981 (open access)

Perry Daily Journal (Perry, Okla.), Vol. 87, No. 310, Ed. 1 Tuesday, February 3, 1981

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: February 3, 1981
Creator: Watson, Milo W.
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 88, No. 8, Ed. 1 Friday, February 13, 1981 (open access)

The Perry Daily Journal (Perry, Okla.), Vol. 88, No. 8, Ed. 1 Friday, February 13, 1981

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: February 13, 1981
Creator: Watson, Milo W.
Object Type: Newspaper
System: The Gateway to Oklahoma History
Perry Daily Journal (Perry, Okla.), Vol. 88, No. 2, Ed. 1 Friday, February 6, 1981 (open access)

Perry Daily Journal (Perry, Okla.), Vol. 88, No. 2, Ed. 1 Friday, February 6, 1981

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: February 6, 1981
Creator: Watson, Milo W.
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Clifton Record (Clifton, Tex.), Vol. 86, No. 9, Ed. 1 Thursday, February 26, 1981 (open access)

The Clifton Record (Clifton, Tex.), Vol. 86, No. 9, Ed. 1 Thursday, February 26, 1981

Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date: February 26, 1981
Creator: Smith, W. Leon
Object Type: Newspaper
System: The Portal to Texas History
The Clifton Record (Clifton, Tex.), Vol. 86, No. 6, Ed. 1 Thursday, February 5, 1981 (open access)

The Clifton Record (Clifton, Tex.), Vol. 86, No. 6, Ed. 1 Thursday, February 5, 1981

Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date: February 5, 1981
Creator: Smith, W. Leon
Object Type: Newspaper
System: The Portal to Texas History
Věstník (Temple, Tex.), Vol. 69, No. 6, Ed. 1 Wednesday, February 11, 1981 (open access)

Věstník (Temple, Tex.), Vol. 69, No. 6, Ed. 1 Wednesday, February 11, 1981

Weekly Czech and English language newspaper from Temple, Texas published as the official organ of the Slavonic Benevolent Order of the State of Texas that includes news of interest to members along with advertising.
Date: February 11, 1981
Creator: Sefcik, R. J.
Object Type: Newspaper
System: The Portal to Texas History
Jewish Herald-Voice (Houston, Tex.), Vol. 72, No. 46, Ed. 1 Thursday, February 5, 1981 (open access)

Jewish Herald-Voice (Houston, Tex.), Vol. 72, No. 46, Ed. 1 Thursday, February 5, 1981

Weekly Jewish newspaper from Houston, Texas that includes local, state, and national news along with advertising.
Date: February 5, 1981
Creator: Samuels, Joseph W. & Samuels, Jeanne F.
Object Type: Newspaper
System: The Portal to Texas History
Jewish Herald-Voice (Houston, Tex.), Vol. 72, No. 47, Ed. 1 Thursday, February 12, 1981 (open access)

Jewish Herald-Voice (Houston, Tex.), Vol. 72, No. 47, Ed. 1 Thursday, February 12, 1981

Weekly Jewish newspaper from Houston, Texas that includes local, state, and national news along with advertising.
Date: February 12, 1981
Creator: Samuels, Joseph W. & Samuels, Jeanne F.
Object Type: Newspaper
System: The Portal to Texas History
Neutral beam injector performance on the PLT and PDX tokamaks (open access)

Neutral beam injector performance on the PLT and PDX tokamaks

An overall injector system description is presented first, and this will be followed by a detailed discussion of those problems unique to multiple injector operation on the tokamaks, i.e., power transmission, conditioning, reliability, and failures.
Date: February 1, 1981
Creator: Schilling, G.; Ashcroft, D. L.; Eubank, H. P.; Grisham, L. R.; Kozub, T. A.; Kugel, H. W. et al.
Object Type: Article
System: The UNT Digital Library
Revegetation research on oil shale lands in the Piceance Basin (open access)

Revegetation research on oil shale lands in the Piceance Basin

The overall objective of this project is to study the effects of various reclamation practices on above- and belowground ecosystem development associated with disturbed oil shale lands in northwestern Colorado. Plant growth media that are being used in field test plots include retorted shale, soil over retorted shale, subsoil materials, and surface disturbed topsoils. Satisfactory stands of vegetation failed to establish on unleached retorted shale during two successive years of seeding. All seedings with soil over retorted shale were judged to be successful at the end of three growing seasons, but deep-rooted shrubs that depend upon subsoil moisture may have their growth hampered by the retorted shale substrate. Natural revegetation on areas with various degrees of disturbance shows that natural invasion and succession was slow at best. Invasion of species on disturbed topsoil plots showed that after three years introduced seed mixtures were more effective than native mixtures in occupying space and closing the community to invading species. Fertilizer appears to encourage the invasion of annual plants even after the third year following application. Long-term storage of topsoil without vegetation significantly decreases the mycorrhizal infection potential and, therefore, decreases the relative success of aboveground vegetation and subsequent succession. Ecotypic differentation …
Date: February 1981
Creator: Redente, E.F. & Cook, C.W.
Object Type: Report
System: The UNT Digital Library
Jewish Herald-Voice (Houston, Tex.), Vol. 72, No. 48, Ed. 1 Thursday, February 19, 1981 (open access)

Jewish Herald-Voice (Houston, Tex.), Vol. 72, No. 48, Ed. 1 Thursday, February 19, 1981

Weekly Jewish newspaper from Houston, Texas that includes local, state, and national news along with advertising.
Date: February 19, 1981
Creator: Samuels, Joseph W. & Samuels, Jeanne F.
Object Type: Newspaper
System: The Portal to Texas History
Pacific Northwest Laboratory annual report for 1980 to the DOE Assistant Secretary for Environment. Part 5. Environmental assessment, control, health and safety (open access)

Pacific Northwest Laboratory annual report for 1980 to the DOE Assistant Secretary for Environment. Part 5. Environmental assessment, control, health and safety

Pacific Northwest Laboratory's (PNL) 1980 annual report to the DOE Assistant Secretary for Environment describes research in environment, health, and safety conducted during fiscal year 1980. Part 5 includes technology assessments for natural gas, enhanced oil recovery, oil shale, uranium mining, magnetic fusion energy, solar energy, uranium enrichment and industrial energy utilization; regional analysis studies of environmental transport and community impacts; environmental and safety engineering for LNG, oil spills, LPG, shale oil waste waters, geothermal liquid waste disposal, compressed air energy storage, and nuclear/fusion fuel cycles; operational and environmental safety studies of decommissioning, environmental monitoring, personnel dosimetry, and analysis of criticality safety; health physics studies; and epidemiological studies. Also included are an author index, organization of PNL charts and distribution lists of the annual report, along with lists of presentations and publications. (DLS)
Date: February 1, 1981
Creator: Baalman, R.W. & Hays, I.D. (eds.)
Object Type: Report
System: The UNT Digital Library
Wind Energy Resource Atlas. Volume 11. Hawaii and Pacific Islands Region (open access)

Wind Energy Resource Atlas. Volume 11. Hawaii and Pacific Islands Region

This atlas of the wind energy resource is composed of introductory and background information, and assessments of the wind resource in each division of the region. Background on how the wind resource is assessed and on how the results of the assessment should be inerpreted is presented. An introduction and outline to the descriptions of the wind resource for each division are provided. Assessments for individual divisions are presented as separate chapters. Much of the information in the division chapters is given in graphic or tabular form. The sequences for each chapter are similar, but some presentations used for Hawaii are inappropriate or impractical for presentation with the Pacific Islands. Hawaii chapter figure and tables are cited below and appropriate Pacific Islands figure and table numbers are included in brackets ().
Date: February 1, 1981
Creator: Schroeder, T. A.; Hori, A. M.; Elliott, D. L.; Barchet, W. R. & George, R. L.
Object Type: Report
System: The UNT Digital Library