Now showing items 6653-6672 of 14849

    • Guided Wave Inspection of Pipes Using Electromagnetic Acoustic Transducers

      Vasiljevic, Milos; Kundu, Tribikram (The University of Arizona., 2007)
      This research covers modeling of Electro Magnetic Acoustic Transducers (EMATs) and their application in excitation and detection of longitudinal guided Lamb wave modes for evaluation of flaws in cylindrical pipes. The combination of the configuration of transducers and the frequency of the input current is essential for successful excitation of desired guided wave modes and for proper interpretation of the results. In this study EMATs were successfully constructed and longitudinal modes L(0,1) and L(0,2) were excited in the pipe. From the recorded signals the level of simulated damage in pipes could be assessed. It is also possible to theoretically predict the location of the pipe flaws. Theoretical predictions are matched with experimental results. Dents and holes in pipes are detected by appropriate signal processing of received L(0,1) and L(0,2) modes.
    • Guidelines for the Design and Development of Golf Courses Adjacent to Riparian Habitat in Semi-Arid Desert Landscapes

      Dietz, Robert Joseph.; Livingston, Margaret; Havens, William H.; Gimblett, H. Randal (The University of Arizona., 1998)
      With the growth of golf has come polarity. Environmentalists have targeted this growth as a misuse of precious land resources, fostering environmental fragmentation. The golf industry has countered by promoting the local implementation of strict environmental guidelines designed to minimize golf's impact on natural resources. Attempts to secure a compromise between developers and environmentalists in Pima County, Arizona have been moderately successful. There, existing environmental golf development guidelines are broad and insufficient to protect a declining riparian habitat. The purpose of this study is to offer improved guidelines for the future development of golf courses in the southwestern United States near sensitive riparian habitat. A comparative analysis of two local case studies provides the key to the development of new guidelines for golf courses near riparian areas in desert landscapes. Guidelines proposed within this study offer planning, design, construction, and maintenance direction related to the development of regional golf courses.
    • Guidelines: the use of cultural resource information in water resource environmental impact reports

      Altshul, Dale Alan.; Bradley, Michael D. (The University of Arizona., 1980)
      The essence of this study was to develop a standardized method for developing comprehensive planning techniques which catalogue and evaluate the good cultural resources. The method chosen has been the development of general guidelines to be followed by project planners and administrators in conducting cultural resource analysis on Federally funded water projects. Through the use of these guidelines the author has attempted to demonstrate complete analysis of the cultural resource component of the environmental constraint. Analysis of this constrain component should be broadly applicable. Water related projects were singled out because of their unique impact on cultural resources. In the Southwestern United States in particular, development has been riverine and riparian in both the prehistoric and historic eras. If it is indeed recognized that the past is important enough to rate at least partial preservation, then water resource projects must be evaluated in terms of their potential impact upon these resources. This need has been mandated by Federal code, and in many instances has been placed into State and local code. In this report techniques for putting law into practical action will be demonstrated.
    • Guides to design and control of efficient truck and shovel operations in open-pit mines

      Winkle, Robert Fredrick, 1916- (The University of Arizona., 1976)
    • Guilt and sexual areas of the Rorschach ink-blots

      Giraldo, Octavio, 1935- (The University of Arizona., 1964)
    • The guitar anthology of Henry Francois de Gallot (1661): A preliminary study

      Anthony, James R.; Corcoran, Kathleen Anne, 1959- (The University of Arizona., 1988)
      The manuscript entitled "Pieces de Guitarre de differende Autheure recuellis par Henry Francois de Gallot" (GB:Ob Ms. Mus. Sch. C94) is one of the largest single collections of music for the Baroque guitar. The source contains over 600 pieces by various composers, including Gallot and Corbetta. An overview of the physical characteristics, organization, and stylistic features of this important source is intended to provide a basis for further study and concordance search.
    • GUSSET PLATE DESIGN UTILIZING BLOCK-SHEAR CONCEPTS.

      Hardash, Steve Gregory. (The University of Arizona., 1984)
    • Gust alleviation in aircraft using forward mounted control surfaces

      Therrien, Francois Xavier, 1928- (The University of Arizona., 1962)
    • Gustav Frenssen, der volksdichter

      Coenen, Frederic E. (Frederic Edward), 1903- (The University of Arizona., 1929)
    • Gustave Flaubert et La Conscience dans l'Art: Portrait de l'Artiste en Arbitre d'un Plan d'Action Responsable

      Le Hir, Marie-Pierre; Mastin, Randy Leon; Leibacher, Lise; McGinnis, Reginald; Provencher, Denis (The University of Arizona., 2016)
      It is virtually impossible today to broach the subject of realism in the arts without at least mentioning the name Gustave Flaubert. Long considered the father of realism in the modern novel, with his seminal works Madame Bovary and The Sentimental Education, Gustave Flaubert was an integral part of that continuing movement in France that was determined to sever once and for all the novel's binds to aristocratic convention and pretension in order to focus on the life of the common woman and man. And Flaubert did find himself in good company then--Zola, Stendhal, Balzac, Hugo, the list goes on, were artists all for whom the effort to advance the form, so that the novel had much greater relevance to the modern world, was of paramount importance. Singularly devoted to stripping the gauze from the lens that had softened the edge for centuries, these few would endeavor to present the human being, the human condition, in its raw, natural, often unpleasant form. For the majority of these writers, however, this new chapter in the history of the novel would rely almost exclusively on this change in primary subject matter. Not so chez Flaubert. In examining the correspondence and major works of Gustave Flaubert, it is possible to track the development of the artist, to follow the arc of thought and opinion that would ultimately shape Flaubert's determination to "write about nothing." Like most of his contemporaries, who were wholly (and vocally) disgusted by the world around them, what this determination meant for Flaubert was that the utter banality of modern life should be reflected in every face, it should be heard in every word, seen in every action, in every place, in every object. What this also meant, and that which further separates Flaubert from the pack, was that Flaubert's narrator, and indeed Flaubert himself, should blend so well with the background presented that both writer and conduit would ultimately disappear. Sorting through the formidable catalogue of analysis available today in articles, reviews and full-length texts, some written more than 100 years ago, it is possible to piece together the "how" at the heart of Flaubert's masterworks--the development and strategic use of free indirect speech, the reliance on action/inaction and dialogue, the astute staging of object, the seamless integration of place, all of which facilitates Flaubert's ability to present, if not the fully realized psychological portrait, then at the very least the sophisticated vehicle designed exclusively to reveal the inner life. In Flaubert's hands, we the reader would directly experience the world as it is/was through the eyes and minds of his principal characters. Still, the question remains. Flaubert would devote five full years of his life to the development of his first masterwork. He would devote another five to the crafting of the second. With this determined Flaubert, we have the who, therefore. With Madame Bovary and The Sentimental Education, we have the what. In France at mid-century, we find the when and the where and, through a close reading of the literature, we can begin to piece together the how. But why? In the correspondence alone, we bear witness to a man struggling mightily to bring to fruition two works of highly uncertain promise. Why would Flaubert endure, why would he fight, when the result, the future of these works, was so uncertain? Via the analysis of specific strings of correspondence, through a sampling of solid, inspired critique, through close readings of the texts themselves and, of course, through acknowledgment of the no-holds-barred approach of the author himself, we arrive at one possible explanation here. "Notre coeur ne doit être bien qu'à sentir celui des autres," Flaubert once wrote, and it is with this in mind that we offer to you this glimpse of the man who would live and die by that problematic, much-maligned maxim "art for the sake of art."
    • Gynecological client preferences for practitioner type

      Barrette, Helen Smith (The University of Arizona., 1979)
    • GYPSUM AND AMMONIUM THIOSULFATE AS AMELIORATING AGENTS FOR SOILS IN ARIZONA.

      Salih, Saad Mahdi. (The University of Arizona., 1982)
    • A HABITAT ANALYSIS OF SPRING-SUMMER ELK RANGE ON THE APACHE-SITGREAVES NATIONAL FOREST, ARIZONA.

      DelGiudice, Glenn D. (Glenn David) (The University of Arizona., 1982)
    • HABITAT SELECTION BY COUES WHITE-TAILED DEER IN RELATION TO GRAZING INTENSITY.

      Brown, Mark Timothy. (The University of Arizona., 1984)
    • Habitat selection by elf owls and western screech-owls in the Sonoran Desert

      Morrison, Michael L.; Hardy, Paul Christopher, 1969- (The University of Arizona., 1997)
      Little is known about habitat selection by elf owls (Micrathene whitneyi) and western screech-owls (Otus kennicottii). From 1994 to 1996 in the Sonoran Desert, I used point counts and nest searches to examine habitat selection by both species at multiple spatial scales. The abundance of both species had a positive association with percent cover of washes and mesquite (Prosopis spp.) at the scale of the study area. At both the scale of the study area and the nesting area, elf owls selected areas with high densities of mature saguaros (Carnegiea gigantea) and saguaro cavities. Elf owls nested only in woodpecker cavities in saguaros, whereas western screech-owls nested in both saguaro cavities and in natural cavities in mesquite. Western screech-owls nested nearly exclusively in gilded flicker (Colaptes chrysoides) cavities when they nested in saguaros. Patterns of nest cavity selection by elf owls suggest they may choose cavities that provide thermoregulatory advantages. I give management recommendations based on my findings.
    • Habitat selection by mountain sheep in Mojave Desert scrub

      Krausman, Paul R.; Berner, Louis Robert, 1963- (The University of Arizona., 1992)
      I identified habitat use by 12-18 mountain sheep (Ovis canadensis nelsoni) in a 320-ha enclosure between June 1990 and June 1991 on the Desert National Wildlife Refuge, Nevada. The enclosure included 9 vegetation associations and 5 slope classes. I used a non-mapping technique and line transects to determine availability of vegetation associations and slope classes, and species composition, respectively. I determined use of habitats by mountain sheep with instantaneous sampling. Mountain sheep used midslopes and draw associations on the west side of the study area, and slope classes of 36-80% more than expected based on availability. I tested Hansen's (1980) habitat evaluation model on the study area. The model was >98% accurate in predicting mountain sheep use of habitat. Habitat use by mountain sheep in the enclosure was similar to habitat use of free-ranging mountain sheep.
    • Habitat Suitability Criteria for Nonnative Species and Relationships between Fish Populations and Flow Regime in Four Arizona Streams

      Bonar, Scott A.; Lee, Larissa N.; Guertin, D. Phillip; Bogan, Michael T. (The University of Arizona., 2018)
      Nonnative species invasions and streamflow alteration are two of the primary causes of native fish depletion in the southwestern U.S. Previous research in Arizona has focused on the habitat needs of native species, without understanding the habitat selection of nonnative species. Additionally, fish populations and streamflow can vary significantly throughout a single Arizona stream, so it is important to understand how spatially variable flows affect fish assemblages. This research has two objectives: 1) to define suitable habitat for nonnative species, and 2) to explore the relationships between the distributions of various fish species throughout time and space in four Arizona streams. Four streams in the Mogollon Rim region of Arizona were sampled during summer base flow conditions (May – October) of 2017 to collect information on fish distributions and habitat conditions. A 20-year dataset from fish sampling in the Verde River by the Arizona Game and Fish Department was used to examine temporal shifts in fish assemblages as they relate to streamflow. Streamflow data from USGS stream gages, the USGS StreamStats application, and the National Hydrography Dataset (NHD) provided metrics to characterize streamflow throughout the study sites. These metrics included estimates of 2-year flood flows, 10-year flood flows, 100-year flood flows, mean annual flows, mean channel velocity, stream power at mean flow, and stream power at 2-year flood flow. I defined suitable habitat for seven nonnative species across these four streams, and results indicated that nonnative species were generally using warmer temperatures and shallower depths compared to available habitat, but many habitat results varied by species. Relationships between streamflow characteristics and species assemblages also varied by species. I found that certain native species, like Sonora Sucker, consistently demonstrated positive relationships with spatial flow characteristics across all four streams, demonstrating a preference for areas with higher velocities, flow, and power. Results for other species were more variable by stream, and differences often split the four study streams into similarities among Tonto Creek and the Verde River, the two larger systems dominated by nonnative species, as opposed to the Blue River and Eagle Creek, the two smaller systems dominated by nonnative species. These results can inform decision-makers and fisheries managers in streamflow allocation, habitat restoration, and nonnative species removals.
    • Habitat Suitability Criteria for Zuni Bluehead Sucker Catostomus discobolus yarrowi and Navajo Nation Genetic Subunit Bluehead Sucker Catostomus discobolus and Comparing Efficiency of AFS Standard Snorkeling Techniques to eDNA Sampling Techniques

      Bonar, Scott A.; Ulibarri, Roy M.; Bonar, Scott A.; Mata, Melissa; Matter, William (The University of Arizona., 2016)
      I quantified habitat selection for the endangered Zuni Bluehead Sucker Catostomus discobolus yarrowi and the Navajo Nation Genetic Subunit (NNGS) Bluehead Sucker Catostomus discobolus - a recent taxon described from genetic information. Both taxa are found in northern Arizona and New Mexico border regions. I examined fish [≥50 millimeters (mm) total length (TL)] selection of microhabitat conditions (i.e., water velocity, substrate size, overhead cover, water depth, instream cover, and mesohabitat conditions [i.e., pool, run riffle], during summer base flow conditions for NNGS Bluehead Suckers, and during both summer base flow and high spring flow conditions for Zuni Bluehead Suckers in six streams). Electrofishing, seining, and snorkeling were used to evaluate fish occupancy. From this information, I developed stream specific habitat suitability criteria (HSC) and then generalized HSC for each taxon, and tested transferability of the generalized HSC to individual streams. Zuni Bluehead Suckers and NNGS Bluehead Suckers occupied similar habitats: low velocity pools; sand, silt, and pebble substrate; high percent of instream cover; and water temperatures ranging from 2-21°C. However, Zuni Bluehead Suckers selected for low (0-25%) overhead cover where as NNGS Bluehead Sucker selected for high (0-75%) overhead cover. This was likely due to the source of instream cover–aquatic macrophytes that required sunlight in the Zuni Bluehead Sucker streams, and large woody debris falling from overhead branches in the NNGS Bluehead Sucker streams. Suggestions for managers includes maintaining existing cover or artificially construct additional instream cover; promote overhead cover (e.g., maintaining large trees along streams) and pool mesohabitats. In addition to this work I also tested the new method of environmental DNA (eDNA) to further help conservation efforts for these taxa. Environmental DNA has typically been used to detect invasive species in aquatic environments through water samples. I compared the efficacy of eDNA methodology to American Fisheries Society standard snorkeling surveys to detect presence of a rare fish species. My study site included three streams on the Navajo Nation in northern Arizona and northern New Mexico containing Navajo Nation Genetic Subunit Bluehead Sucker Catostomus discobolus and the Zuni Bluehead Sucker Catostomus discobolus yarrowi. To determine sample sites, I first divided entire wetted area of streams into 100-m consecutive reaches. I systematically selected 10 of those reaches for snorkel and eDNA surveys. Water samples were taken in 10-m sections within each 100-m reach, and fish presence via snorkeling was noted in each 10-m section as well. Water samples were collected at the downstream starting point of each reach, and continued upstream in each section 5 to 8 m ahead of the snorkeler. A qPCR was run on each individual water sample in quadruplicate to test for sucker presence or absence. I was able to positively detect both species with eDNA sampling techniques in two out of three streams. Snorkeling resulted in positive detections of both species in all three streams. In streams where fish were detected with eDNA sampling, snorkeling detected fishes at 11-29 sites per stream, where as eDNA detected fish at 3-12 sites per streams. My results suggested that AFS standard snorkeling was more effective at detecting target fish species than eDNA. To improve eDNA sampling, the amount of water collected and tested should be increased. Additionally, filtering water on site may improve eDNA techniques for detecting fish. Future research should focus on standardizing eDNA sampling to provide a widely operational sampling tool similar to electrofishing, netting, and hydroacoustics.
    • Habitat use and life history of the Mount Graham red squirrel

      Smith, Norman S.; Froehlich, Genice Frances, 1953- (The University of Arizona., 1990)
      I studied habitat use by 9 radio-collared Mt. Graham red squirrels (Tamiasciurus hudsonicus grahamensis) during the summers of 1988 and 1989 in the Pinaleno Mountains, Arizona. My 2 study areas represented an Engelmann spruce (Picea engelmannii)/corkbark fir (Abies lasiocarpa) association on High Peak and a Douglas-fir (Pseudotsuga menziesii) association on Merrill Peak. I trapped 9 squirrels in 33,400 trap hours, and calculated the seasonal home range for 4 animals, 2 in each study area. Hidden density was 0.54 and 0.2 middens/ha, respectively, but seasonal home range size (x = 3.62 ha) did not vary between habitats. Squirrel numbers decreased on both study areas between 1988 and 1989. I concluded that preference for habitat characteristics in midden areas explained lower densities in the mixed conifer vegetation. Squirrels fed mainly on cones and mushrooms, depending on season and availability. Mt. Graham red squirrels may breed twice/year.
    • Habitat use and preference of Gila topminnow

      Matter, William J.; Forrest, Robert Eugene, 1965- (The University of Arizona., 1992)
      The Gila topminnow (Poeciliopsis occidentalis occidentalis) is federally and state listed as endangered. My objectives were to quantify microhabitat use and preference of topminnow in the field and test responses to controlled laboratory settings. In Cienega Creek, topminnow preferred stream margins where the water was calm, shallow, and contained aquatic vegetation. Topminnow were always near the water surface. Water temperature averaged 1-2 C warmer in areas occupied by fish. In outdoor pools, groups of topminnow consistently preferred cover provided over no cover and selected the upper 1/3 of the water column. Plastic strips, elicited the strongest response and styrofoam sheets elicited the weakest response. Topminnow did not show a consistent preference for cover when tested singly in aquaria, but showed a strong preference for calm water. Responses of topminnow to tests in aquaria were not in concordance with behavior observed in Cienega Creek or in tests conducted in outdoor pools.