Digital Commons Network^™

Simulation Of Burley Tobacco Harvesting-Housing Systems, Ronald L. Bingner, Larry G. Wells, Thomas C. Bridges, George A. Duncan

Biosystems and Agricultural Engineering Faculty Publications

A computer model has been developed using systems analysis techniques to simulate the labor and equipment aspects of harvesting burley tobacco. By varying the parameters of the model the user can determine a harvesting and housing strategy based on labor and equipment availability.

Sequential Probability Ratio Tests For The Shape Parameter Of A Nonhomogeneous Poisson Process, Lee J. Bain, Max Engelhardt

Mathematics and Statistics Faculty Research & Creative Works

Sequential probability ratio tests for the shape parameter of one or more nonhomogeneous Poisson processes, with power intensity functions, are provided. The tests can be performed when the scale parameter is an unknown nuisance parameter; the effective loss of not knowing the scale parameter is one observation per process. The resulting tests can be expressed in terms of the maximum likelihood estimators of the shape parameters for the usual fixed sample procedure. A further advantage of the present approach is that the scale parameters for different processes, in the multiple sample procedures, need not be equal. Approximations for the operating …

Application Of The Genetic Algorithm To A Simplified Form Of The Phase Problem, Byrne Lovell, Martin Zwick

Complex Systems Faculty Publications and Presentations

The Genetic Algorithm, a technique for global optimization which simulates evolutionary adaptation, is applied to a simplified form of the "phase problem" in theoretical crystallography. Results are compared with those of a problem-specific algorithm.

Glacial Deposits, Vol. 10, 1981-1982, Department Of Geography-Geology

Glacial Deposits

Newsletter of the Department of Geography-Geology

Mineralogical, Textural, And Paragenetic Studies Of Selected Ore Deposits Of The Southeast Missouri Lead-Zinc-Copper District And Their Genetic Implications, Kenneth Bruce Horrall

Doctoral Dissertations

“A detailed paragenetic study of Pb-Zn-Cu ores from the Viburnum Number 28, Brushy Creek, and Goose Creek mines in the Southeast Missouri lead district indicates a complicated paragenesis characterized by repeated periods of mineral deposition. The sequence is composed of nineteen minerals including abundant galena, sphalerite, chalcopyrite, pyrite, marcasite, dolomite, calcite, and quartz and minor siegenite, bornite, bravoite, blaubleibender covellite, covellite, gersdorffite, digenite, enargite, tennantite, dickite, and malachite.

The paragenesis indicates that the ore solutions evolved in the following order: (1) Cu-rich, (2) Co-Ni-rich, (3) Pb-Zn-rich, and (4) Fe-rich. Subsequent repeated generations include cubic galena, later sphalerite, and minor crystalline …

The Reaction Of 4-Vinylcyclohexene With Palladium (Ii), Kathy Ellen Beeler

University of the Pacific Theses and Dissertations

This program of study was concerned with the elucidation of the causes(s) behind the inability of various workers to reproduce the work of Fyre and Kuljian on the rearrangement of 4-vinylcyclohexene to 1,5-cyclooctadiene by the action of palladium (II).

Protein Synthesis In Rabbit Reticulocytes: Characteristics Of The Protein Factor Rf That Reverses Inhibition Of Protein Synthesis In Heme-Deficient Reticulocyte Lysates, Michael Grace, Robert O. Ralston, Ambica C. Banerjee, Naba K. Gupta

Department of Chemistry: Faculty Publications

During heme deficiency in reticulocyte lysates, the heme-regulated translational inhibitor of protein synthesis (HRI) is activated and shuts off protein synthesis. In partial reactions, HRI phosphorylates the M_r 38,000 subunit (α subunit) of eukaryotic initiation factor 2 (eIF-2), which forms a ternary complex, Met-tRNA_f•eIF-2•GTP. The eIF-2α(P) thus formed is not recognized by two eIF-2 ancillary factors, Co-eIF-2B (which promotes the dissociation of the ternary complex at high Mg²⁺) and Co-eIF-2C (which reverses the inhibition of ternary complex formation), and thus, is presumably inactive in peptide chain initiation. A protein factor, designated RF, which reverses inhibition …

The Distribution Of Natural Fractures And Joints At Depth In Crystalline Rock, Donald A. Seeburger, Mark D. Zoback

United States Geological Survey: Staff Publications

This paper presents the results of studies of the natural fracture distribution encountered in 10 test wells drilled in three areas of the United States. Seven of the wells were drilled to depths of 200-250m, while three were drilled to depths of about 1 km. Using an ultrasonic borehole televiewer, fracture depths, strikes, and dips were determined. Steeply dipping fractures were found throughout each of the wells, and in general, few horizontal fractures were observed. Statistically significant fracture pole concentrations were found for each well which were basically invariant with depth, although some variation of fracture orientation with depth was …

Implications Of An Elastic Analysis Of In Situ Stress Measurements Near The San Andreas Fault, A. Mcgarr, M. D. Zoback, T. C. Hanks

United States Geological Survey: Staff Publications

Twenty-nine measurements of in situ stress obtained with the hydraulic fracturing technique near Palmdale, California, are the basis of an elastic analysis of the state of stress in the Mojave Desert adjacent to the San Andreas fault. The measurements were made at depths extending from 80 to 849 m and at distances from the fault between 2 and 34 km. The elastic solution indicates a state of deviatoric stress typical for continents in that the inferred depth gradient of the maximum shear stress is about 7.9 MPa/km. Extrapolation yields an average shear stress in the upper 14 km of the …

A Comparison Of The Surface Polysaccharides Of Rhizobium Trifolii Su843 With Its Genetically Altered Mutant, 8002, Which Is Defective At Root Hair Curling (Hac-), Elroy Alfredo Turnbull

Masters Theses

Bacteria of the genus Rhizobium are capable of forming a complex nitrogen fixing (fix⁺) symbiotic association with leguminous plants. The surface polysaccharides are believed to be essential in the symbiotic process. The surface polysaccharides of a genetically altered Rhizobium trifolii mutant, 8002--which does not cause root hair curling (HAC^-), forms no nodules (Nod^-) nor fixes nitrogen (Fix^-)--is compared with its parent, SU843, which causes root hair curling (HAC⁺), forms nodules (Nod⁺), and fixes nitrogen (Fix⁺). Three types of surface polysaccharides--extracellular polysaccharide(s) (EPS), capsular polysaccharide(s) (CPS), and …

Potential For Acid Snowmelt In The Wasatch Mountains, Jay J. Messer, Lloyd Slezak, Charles I. Liff

Reports

Snowmelt collected from snow cores taken from the 1982 spring snowpack in the Wasatch Mountains of northern Utah lacked mineral acidity and retained enough buffering capacity in the form of calcium and magnesium bicarbonates to titrate additional inputs of strong acid equivalent to the amount apparently already neutralized. While acid anion concentrations were higher than those found in pristine areas, they were much lower than those reported for winter precipitation in other western areas experiencing acidification of precipitation. Snowmelt pH ranged from 5.62 to 6.88 (mean = 6.17), and sulfate was relatively more important than nitrate, showing an average equivalent …

Impacts Of Western Coal, Oil Shale, And Tar Sands Development On Aquatic Environmental Quality: A Technical Information Matrix; Volume 1 Introduction And Instructions, Jay J. Messer, Charles I. Liff, Kurt Gernerd, Frederick J. Post

Reports

Introduction: The Upper Colorado River Basin contains vast deposits of coal, oil shale, and tar sands, which could undergo extensive development should oil prices rise or an international situation restrict oil imports. Naturally, the prospect of development of these alternative fossil fuels resources has led to concern over how extraction and conversion activities will impact environmental quality. A thorough understanding of the nature and magnitude of the resulting envionemental impacts is a necessary prerequisite, if the costs and risks of such activites are to be weighed against the economic benefits. When we set out to evaluated these costs and risks, …

A Multivariate Water Quality Index For Use In Management Of A Wildland Watershed, Ramzi Mahmood, Jay J. Messer, Frank J. Nemanich, Charles I. Liff, Dennis B. George

Reports

Executive Summary: Summary: Multivariate statistical techniques were used to define a method for establishing a water quality index (WQI) for use in protecting the stream environment in a high mountain watershed. The purpose of the WQI was to aggregate water quality parameters in such a way that the effects of low level increments in mining, grazing, logging and other activities could be related to a change in the value of a single entity, aquatic environmental aquality, in a linear programming (LP) management model. Several data aggregation methods were explored, using water quality data collected over 5 years (1975-1979) by the …

Magnetotactic Bacteria, Richard B. Frankel

Physics

No abstract provided.

The Influence Of Salinity On Larval Development And Population Dynamics Of Anopheles Merus Dönitz (Diptera: Culicidae), F. W. Mosha, C. M. Mutero

All Peer-Reviewed Publications

Variations in density of adults of Anopheles merus Dön. in Jimbo Village on the Kenya Coast were found to be correlated both with rainfall and with salinity at their breeding sites. Densities started to increase at the beginning of the rains when several breeding sites were formed. This was followed by a decline in numbers resulting mainly from the decrease in salinity in the semi-permanent breeding sites. A second rise occurred after the end of the rains, corresponding with an increase in salinity in the semi-permanent breeding sites due to evaporation. Peak density coincided with salinities of 30–50% sea water …

Robotics And The Conservation Of Human Resources, Robert U. Ayres, Steven M. Miller

Research Collection School Of Computing and Information Systems

Due to rapid expansion in the field of robotics, policy issues have arisen in regard to developing human skills to deal with the new technology and to deal with the obsolescent human skills which are the inevitable result of this growth pattern. Industrialists, educators, union leaders, and government officials must work cooperatively to insure that the coming changes are made with minimum disruption. Improved training methods and courses have to be developed for the skills needed to control, manage and supervise the new machines. Some of the ways in which this can be accomplished are through offering financial incentives for …

Radiometric And Petrochemical Characteristics Of The Dells Granite, Yavapai County, Arizona, Kenneth Stewart Fleck

Masters Theses

"The Dells granite of central Arizona, an alkaline granite containing accessory fluorite and tourmaline, contains anomalously high amounts of uranium. Gamma-ray spectrometry, x-ray fluorescence, petrographic, and autoradiographic methods were used to determine the contents and distribution of equivalent U, Th, K, and ten major element oxides within the granite pluton. The range of uranium content is 0 to 39.7 parts per million (ppm) with the mean equivalent U content 8.8 ppm; eTh, 26.8 ppm; and K, 4.8%. The average uranium content is about twice the average of western United States granites, the thorium content slightly less than average. The Th/U …

1982-1983 Nova University Center For Science And Engineering Bulletin, Nova Southeastern University

Undergraduate Programs Course Catalogs

No abstract provided.

Petrology And Alteration In The Core Of The Bear Lodge Tertiary Intrusive Complex, Bear Lodge Mountains, Crook County, Wyoming, Michael Wilkinson

Theses and Dissertations

The Bear Lodge complex is an elongate, dome-shape uplift about 8.5 km long by 4 km wide, 10 km northwest of Sundance, Wyoming. The study area is centered about Warren Peaks and includes approximately 23 km2. The igneous intrusive core of the complex is mostly alkali trachyte but latite is abundant in the southern portion of the complex. Phonolite, pseudoleucite trachyte porphyry, and carbonatite dikes cut across the core. Precambrian granitic rocks and lower Paleozoic sedi mentary rocks flank the intrusion and occur as xenoliths.

The latite is relatively unaltered and consists mostly of oligo clase, andesine, alkali feldspar, salite, …

Petrology, Geochemistry And Economic Geology Of Selected Gold Claims In Rocks Of The Wasekwan Lake Area, Lynn Lake District, Manitoba, Canada, Douglas Scott Kenaley

Theses and Dissertations

The purpose of this investigation was to map and study, both at regional and detailed scales, the units encountered within seven gold claims that were staked by Sherritt-Gordon Mines Limited of Lynn Lake, Manitoba. The claims are located in the wasekwan Lake area, approximately 12. 8 km southeast of Lynn Lake. Regional mapping was conducted at a scale of 1:12000 over a 6.4 km2 area and detailed mapping of potentially economic areas was conducted at a scale of 1:240. Whole-rock geochemistry, microprobe, optical and X-ray diffraction procedures were employed to describe and characterize the rocks. The Aphebian rock units of …

Effets Des Informations Chimiques Provenant D'Un Milieu Habité Par Des Congénères Sur I'Orientation Topographique Du Poisson Cavernicole Phreatichthys Andruzzii Vinciguerra (Pisces, Cyprinidae), R. Berti, G. Thinès, B. Lefèvre

International Journal of Speleology

Two series of experiments were performed on the oriented locomotor responses of 27 specimens of the blind cave fish Phreatichthys andruzzii from Somalia using a three-compartment choice apparatus. The oriented responses were observed individually from the central compartment towards either of the extreme ones. In one of them, 500 ml water were introduced from either the tank in which the test fish had previously resided with conspecifics (1st series, 46 experiments) or from another tank occupied by unknown conspecifics, the other compartment receiving an equivalent volume of pure water. The two series were performed in random blocks of 6 experiments, …

Local Lp-Saturation Of Positive Linear Convolution Operators, J. J. Swetits, B. Wood

Mathematics & Statistics Faculty Publications

Local L_p-saturation of positive linear convolution operators is investigated. Results are obtained for two important classes of operators previously studied by Bojanic, DeVore, Korovkin and the authors.

Ultraviolet Observations Of Four Symbiotic Stars, A. G. Michalitsianos, Menas Kafatos, W. A. Feibelman, R. W. Hobbs

Mathematics, Physics, and Computer Science Faculty Articles and Research

Observations were obtained with the International Ultraviolet Explorer (IUE) of four symbiotic stars. The UV spectra of YY Her, SY Mus, CL Sco, and BX Mon are characterized by varying degrees of thermal excitation. We have analyzed these low resolution spectra in terms of line-blanketed model atmospheres of early A, B, and F type stars in order to identify the nature of the hot companion in these systems. The expected emission from early main sequence stars does not fully explain the observed distribution of UV continuum energy over the entire IUE spectral range (1200-3200 A). More likely the observed continuum …

International Ultraviolet Explorer Observations Of The Aquarii Jet, A. G. Michalitsianos, Menas Kafatos

Mathematics, Physics, and Computer Science Faculty Articles and Research

Ultraviolet spectra were obtained with the International Ultraviolet Explorer of the newly discovered optical-radio jet feature in the symbiotic variable R Aquarii. The far-UV continuum of the jet is characterized by strong continuum which rises with decreasing wavelength in the 1200-2000 A wavelength range and is considerably different in appearance from the relatively flat continuum exhibited by ionized nebulosity in the central star. Prominent Si III] and Si II emission lines seen in the central region are virtually absent in the jet. This could reflect the depletion of silicon in the feature, the result of grain formation in material that …

Ultraviolet Spectrum Of The Crab Nebula, K. Davidson, T. R. Gull, S. P. Maran, T. P. Stecher, R. A. Fesen, R. A. Parise, C. A. Harvel, Menas Kafatos, V. L. Trimble

Mathematics, Physics, and Computer Science Faculty Articles and Research

Data from 65 hours of observation of the Crab Nebula with the International Ultraviolet Explorer are reported, together with new ground-based spectrophotometry. We have measured the important C IV λ1549, He II λ1640, and C III] λ1908 emission line intensities and placed upper limits on other ultraviolet features for the brightest filamentary region in the nebula. We have also measured some ultraviolet continuum surface brightnesses at two places in the Crab. The emission lines imply an average ionic abundance ratio n(C^+2)/n(O^+2 ) in the range from 0.4 to 1.5 in the observed gaseous condensations. The elemental abundance ratio of carbon …

Carbonate Bodies Within The Basal Swift Formation (Jurassic) Of Northwestern North Dakota, Tina M. Langtry

Theses and Dissertations

The carbonate bodies of the basal Swift Formation (Upper Jurassic) occur as anomalous deflections on a relatively uniform mechanical well log section. The areal distribution, stratigraphic relationships, and genesis of the carbonate bodies were determined by using the gamma ray log, the spontaneous-potential log, the resistivity log suite, and megascopic and microscopic core analysis.

The carbonate bodies of the basal Swift Formation are coarsening upward sequences composed of predominantly sand-sized, recrystallized mollusk grains. These grains were transported by strong bottom cur rents across the irregular sea floor of the shallow epicontinental Jurassic sea, and were deposited under agitated water conditions …

Depositional Environment And Diagenesis, Birdbear Formation (Upper Devonian) Williston Basin, North Dakota, Peter T. Loeffler

Theses and Dissertations

The Birdbear Formation is a subsurface unit that is present throughout North Dakota except where truncated by post-depositional erosion. An angular unconformity is present between the Birdbear and younger strata in areas where the Three Forks Formation does not overlie the Birdbear. An isopach map of the Birdbear, constructed from drill-hole log data, indicates that the formation generally thickens gradually from the erosional limit to a maximum of 119 feet north of the center of the Basin. A structure map o~ the top of the Birdbear shows a basin that reaches 9000 feet below sea level.

The Birdbear is predominantly …

Glacial Geology And Stratigraphy Of Southeastern Pierce And Southwestern Benson Counties, North Dakota, Arthur W. Schnacke Jr.

Theses and Dissertations

The study area includes 220 square miles in southeastern Pierce and southwestern Benson Counties, North Dakota (T. 152 N. through T. 154 N., R. 70 W. through R. 73 W.).

,

Field mapping and subsequent analyses were attempted to differentiate the drifts of the Leeds and Souris lobes, to determine the sequence and duration of events during and subsequent to glaciation, and to aid in correlating the drifts. Landforms of the area include: ice marginal ridges, ground moraine, proglacial plains, abandoned river channels, and sand dunes.

In the laboratory, very coarse sand lithology percentages, till fabric, texture, and gross lithology …

Structural Analysis Of Precambrian Metasedimentary Rocks Of The Swede Gulch Formation, Nahant, South Dakota, Richard G. Cookman

Masters Theses

Precambrian X tectonites deformed between thermal domes in the northern Black Hills 1.7 B.Y.B.P. display variably trending isoclinal folds cross-cut by southeast trending slip-folds developed in discrete shear zones. Eugeosynclinal sedimentary rocks consisting of shale, quartzarenite , sublitharenite, and graywacke were metamorphosed to phyllite, quartzite, and metagraywacke during two syntectonic phases and one post-tectonic phase. The earliest syntectonic metamorphism was associated with development of isoclinal folds and may have produced amphibolite or greenschist facies. It was succeeded by retrograde metamorphism of greenschist facies syntectonic with and post-tectonic to development of southeast trending folds.

Mica, chlorite, iron oxides, and graphite are …

The Probe, Issue 17 - November 1981

The Probe: Newsletter of the National Animal Damage Control Association

THE PROBE National Animal Damage Control Association November, 1981
It is now time to pay your dues.
Bats roosting in an attic can provide a free and easy way to keep a house warm in winter.
THE NO ANTIDOTE 1080
ORCHARD MOUSE CONTROL
The highly publicized "Adopt-a-Horse" program of the FRIENDS UF ANIMALS that was foisted on the Bureau of Land Management (BLM) is undergoing reevaluation.
NADCA ANNUAL MEETING
ASTM SYMPOSIUM ANNOUNCEMENT
WILDLIFE MANAGEMENT ON PUBLIC LANDS
Cats won't chase birds at the bird feeder if you feed the birds lemon-scented bird seed.
The killing of the three-year old by …