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Zeitschriftenartikel zum Thema "Sand bars – North Carolina"

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Cross, Gene B., und Walter A. Skroch. „Quantification of Weed Seed Contamination and Weed Development in Container Nurseries“. Journal of Environmental Horticulture 10, Nr. 3 (01.09.1992): 159–61. http://dx.doi.org/10.24266/0738-2898-10.3.159.

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Abstract An investigation was conducted at seven North Carolina nurseries to evaluate the possibility that container substrates serve as weed infestation sources. Container substrate treatments consisted of sand/pasteurized bark, bark/pasteurized sand, pasteurized bark/pasteurized sand, and bark/sand. No differences were observed between numbers of weed seedlings found in the four substrate combinations. Differences were observed across nursery sites and the nursery by date interactions. Five weed species most frequently observed were yellow woodsorrel (Oxalis stricta L.), hairy bittercress (Cardamine hirsuta L.), common groundsel (Senecio vulgaris L.), spotted spurge (Euphorbia maculata L.), and mouseear chickweed (Cerastium vulgatum L.).
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Marinho, Bárbara, Carlos Coelho, Magnus Larson und Hans Hanson. „LONG-TERM COASTAL EVOLUTION MODELLING OF LONGSHORE BARS“. Coastal Engineering Proceedings, Nr. 36 (30.12.2018): 97. http://dx.doi.org/10.9753/icce.v36.papers.97.

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An extended version of a numerical model introduced by Larson et al. (2013) to simulate long-term cross shore material exchange for the subaqueous portion of the profile has been developed. Efforts have focused on improving the model to better account for beach systems consisting of two bars (inner and outer bar), as well as simulating the feeder response over time of nearshore dredged material bars, intended to function as beach nourishment. The theory for the evolution of a single-bar to a two-bar system was modeled, considering an inner and an outer bar, where the outer bar is of primary interest with the purpose of predicting the behavior of placed dredged material. The cross-shore sediment transport rate is based on the evolution equation for the bar system response to the hydrodynamic forcing by reference to its equilibrium condition, where the change in the bar volume is based on a set of wave criteria, describing the onset of a new breaking zone when the outer bar forms. Empirical formulas are employed for the bar equilibrium volume and for coefficients determining the bar response rate. In this study, a description of the extended model and the results from the model component validation at two different sites in USA (Duck, North Carolina, and Cocoa Beach, Florida) are presented. Duck measurements have detected that some bars form in the nearshore and move all the way offshore (eventually deflating by non-breaking waves). At the same time, it was equally observed that a lot of inner bars formed in shallow water do not move offshore but remain as inner bars all the time. According to this, the developed model considers that the inner bar will not become the outer bar, but material previously dedicated to the inner bar will be available for the outer bar. Overall, the present study demonstrates the potential for using rather simple models, based on the definition of an equilibrium state that is compared to the current state and the magnitude of offshore wave forcing to drive the changes in the profile. The methodology employed here allowed to quantitatively reproduce the main trends in the subaqueous beach profile response in a long-term perspective as a function of the bar volumes disequilibrium, the magnitude of the incident wave height and the dimensionless fall velocity to move the sand with a time varying forcing.
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Parker, Michael L., und John R. Meyer. „COMPETITIVE VEGETATIVE ORCHARD COVERS REDUCE PEACH ROOTING“. HortScience 27, Nr. 6 (Juni 1992): 589g—589. http://dx.doi.org/10.21273/hortsci.27.6.589g.

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Peach trees (`Biscoe'/Lovell) were planted in March, 1988 in ten different ground cover management systems. The trees were planted at the Sandhills Research Station in Southeastern North Carolina on a Candor sand and Eunola sandy loam. In December, 1991 the trench profile method was used to evaluate root distribution under the six orchard floor management systems of nimblewill, bare ground control, centipedegrass, brome, bahiagrass, and weedy control. Trenches were dug parallel to the tree row 60 cm from the center of the row on both sides of the tree. Grids 1 meter square, sectioned into 10 cm squares, were placed on the profile walls and root distribution (in three size categories) was recorded for 1 meter on each side of the tree in each trench. Root numbers were greatly reduced under the vegetative covers that provided the greatest suppression of vegetative tree growth. Total root densities under the trees in the vegetative covers were ranked into three size categories which were correlated with the amount of vegetative tree growth.
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Hanes, Daniel M., Vadim Alymov, Yeon S. Chang und Chris Jette. „Wave-formed sand ripples at Duck, North Carolina“. Journal of Geophysical Research: Oceans 106, Nr. C10 (15.10.2001): 22575–92. http://dx.doi.org/10.1029/2000jc000337.

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White, Allen B., Kelly M. Mahoney, Robert Cifelli und Clark W. King. „Wind Profilers to Aid with Monitoring and Forecasting of High-Impact Weather in the Southeastern and Western United States“. Bulletin of the American Meteorological Society 96, Nr. 12 (01.12.2015): 2039–43. http://dx.doi.org/10.1175/bams-d-14-00170.1.

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Abstract With funding provided by the 2012 Disaster Relief Act (Sandy Supplemental), NOAA’s Earth System Research Laboratory Physical Sciences Division has installed three Doppler wind-profiling radars and surface meteorology towers along the U.S. Gulf and southeast coasts to help detect and monitor landfalling tropical storms and other high-impact weather events. This same combination of instruments has been used to monitor landfalling atmospheric rivers on the U.S. West Coast. For this reason, we refer to the whole collection of instruments at each site as an Atmospheric River Observatory (ARO). These three new AROs supported by the Sandy Supplemental complement a fourth ARO deployed in coastal North Carolina as part of NOAA’s Hydrometeorology Testbed Southeast Pilot Study. These four AROs were installed in time to capture the 2014 hurricane season and will be operated through the 2015 hurricane season.
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Villarini, Gabriele, Radoslaw Goska, James A. Smith und Gabriel A. Vecchi. „North Atlantic Tropical Cyclones and U.S. Flooding“. Bulletin of the American Meteorological Society 95, Nr. 9 (01.09.2014): 1381–88. http://dx.doi.org/10.1175/bams-d-13-00060.1.

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Riverine flooding associated with North Atlantic tropical cyclones (TCs) is responsible for large societal and economic impacts. The effects of TC flooding are not limited to the coastal regions, but affect large areas away from the coast, and often away from the center of the storm. Despite these important repercussions, inland TC flooding has received relatively little attention in the scientific literature, although there has been growing media attention following Hurricanes Irene (2011) and Sandy (2012). Based on discharge data from 1981 to 2011, the authors provide a climatological view of inland flooding associated with TCs, leveraging the wealth of discharge measurements collected, archived, and disseminated by the U.S. Geological Survey (USGS). Florida and the eastern seaboard of the United States (from South Carolina to Maine and Vermont) are the areas that are the most susceptible to TC flooding, with typical TC flood peaks that are 2 to 6 times larger than the local 10-yr flood peak, causing major flooding. A secondary swath of extensive TC-induced flooding in the central United States is also identified. These results indicate that flooding from TCs is not solely a coastal phenomenon but affects much larger areas of the United States, as far inland as Illinois, Wisconsin, and Michigan. Moreover, the authors highlight the dependence of the frequency and magnitude of TC flood peaks on large-scale climate indices, and the role played by the North Atlantic Oscillation and the El Niño–Southern Oscillation phenomenon (ENSO), suggesting potential sources of extended-range predictability.
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Shafer, Paul. „Impact of US smoke-free air laws on restaurants and bars by employer size: a panel study“. BMJ Open 7, Nr. 11 (November 2017): e018137. http://dx.doi.org/10.1136/bmjopen-2017-018137.

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ObjectivesThirty states have smoke-free air laws that ban smoking in restaurants and bars, covering nearly two-thirds of the US population. It is well established that these laws generally have a null or positive economic impact on restaurants and bars. However, all establishments in a geographic area are usually treated as a homogeneous group without considering the potential for differential effects by establishment characteristics. This study uses variation in smoke-free air laws over time to estimate their impact on employment in restaurants and bars with a focus on potential differences by employer size (number of employees). A two-pronged approach with a national-level and state-level analysis is used to take advantage of more granular data availability for a single state (North Carolina).DesignObservational study using panel data.Setting1) US, 2) North CarolinaInterventionsSmoke-free air laws.Outcome measuresState-level accommodation and food services employment for all 50 states and District of Columbia from 1990 through 2014 (Quarterly Census of Employment and Wages); county-level restaurant and bar employment in North Carolina from 2001 through 2014 (North Carolina Department of Commerce).ResultsThere is no evidence of a redistributive effect of smoke-free air laws on restaurant and bar employment by employer size.ConclusionThe lack of a redistributive effect is an important finding for policy-makers considering implementation or expansion of a smoke-free air law to protect employees and patrons from the dangers of exposure to secondhand smoke.
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Savage, Rudolph P. „EXPERIMENTAL STUDY OF DUNE BUILDING WITH SAND FENCES“. Coastal Engineering Proceedings 1, Nr. 8 (29.01.2011): 22. http://dx.doi.org/10.9753/icce.v8.22.

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In 1957 the State of North Carolina, in cooperation with the Beach Erosion Board and the Wilmington District of the Corps of Engineers undertook an experimental dune building study on the Outer Banks of North Carolina. The experimental study consists of the construction of various types and arrangements of sand fences to determine the fence type and arrangement most effective in building a dune by trapping windblown sand. Four miles of experimental fencing were constructed in 1960. During the following year, four sets of profiles were made to determine the sand accumulation of the fences and a rather intermittent wind record was made in the area. The performance of the various fence types and arrangements has been compared and some conclusions have been reached concerning the best fence type and arrangement.
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Mikami, Yasumitsu. „LONG-TERM SHORELINE CHANGES ON MARGINAL COAST OF TIDAL FLAT IN TOKYO BAY AND RAPID DEFORMATION OF SAND BARS OWING TO TSUNAMI“. Coastal Engineering Proceedings, Nr. 35 (23.06.2017): 1. http://dx.doi.org/10.9753/icce.v35.management.1.

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Long-term shoreline changes on the marginal coast of the Banzu tidal flat in Tokyo Bay were investigated using aerial photographs. In the area immediately north of the Obitsu River mouth, the beach was eroded owing to the decrease in sand supply from the river, resulting in the exposure of a layer composed of cohesive material in the previous tidal flat, and sand was transported northward to form a sand spit at the mouth of the north tributary. In 2011, the giant tsunami generated by the Great East Japan Earthquake propagated deep into Tokyo Bay, and sand bars were pushed landward by 7 m parallel to the shoreline owing to the tsunami overflow.
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Hoyt, Greg D. „405 No-till Vegetable Production in the Sand Hill Region of North Carolina“. HortScience 35, Nr. 3 (Juni 2000): 462E—463. http://dx.doi.org/10.21273/hortsci.35.3.462e.

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An experiment was established to determine the effect of different winter cover crops residues on yields of no-till pumpkins, yellow summer squash, and sweet corn. Residue treatments of fallow, triticale, crimson clover, little barley, and crimson clover + little barley were fall established and killed before spring no-till planting in 1998 and 1999. All summer vegetables received recommended fertilizer rates and labeled pesticides. Spring cover crop growth and biomass measurements ranged from 1873 to 6362 kg/ha. No-till sweet corn yields among the various cover residue treatments were greater where crimson clover and crimson clover + little barley (mixture) were used as residue in 1999, but not significantly different in 1998. No-till pumpkins showed the beneficial affect cover crop residue had on vegetable yields when dry conditions exist. Triticale and crimson clover + little barley (mixture) residues reduced soil water evaporation and produced more numbers of fruit per hectare (5049 and 5214, respectively) and greater weights of fruit (20.8 and 20.9 Mg/ha) than the other residue treatments (3725 to 4221 fruit/ha and 11.8 to 16.1 Mg/ha, respectively). No-till summer squash harvest showed steady increases in yield through time by all treatments with crimson clover residue treatment with the greatest squash yields and triticale and little barley residue treatments with the lowest squash yields. We found that sweet corn and squash yields were greater where legume cover residues were used compared to grass cover residues, whereas, pumpkin yields were higher where the greatest quantity of mulch was present at harvest (grass residues).
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Dissertationen zum Thema "Sand bars – North Carolina"

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Wilson, Kenneth T. „Shoreface mapping and sand resource inventory North Topsail Beach and Surf City, North Carolina /“. View electronic thesis (PDF), 2009. http://dl.uncw.edu/etd/2009-1/willsonk/kennethwillson.pdf.

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Plant, Nathaniel Granger. „The role of morphologic feedback in surf zone sand bar response“. Thesis, 1998. http://hdl.handle.net/1957/27782.

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Hosny, Amr Ihab-Ahmed. „Bond behavior of high performance reinforcing bars for concrete structures“. 2007. http://www.lib.ncsu.edu/theses/available/etd-04222007-211818/unrestricted/etd.pdf.

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Seliem, Hatem Mohamed A. „Behavior of concrete bridges reinforced with high-performance steel reinforcing bars“. 2007. http://www.lib.ncsu.edu/theses/available/etd-05042007-174633/unrestricted/etd.pdf.

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Konicki, Kathryn Maria. „The statistics and kinematics of transverse sand bars on an open coast“. Thesis, 1999. http://hdl.handle.net/1957/28114.

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Lindow, Nicholas L. „Channel evolution of a restored low gradient, sand bed stream“. 2007. http://www.lib.ncsu.edu/theses/available/etd-10212007-114502/unrestricted/etd.pdf.

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Bücher zum Thema "Sand bars – North Carolina"

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Sendor, Benjamin B. North Carolina Supreme Court bars hypnotically refreshed testimony. Chapel Hill, N.C. (Knapp Bldg. 059A, Chapel Hill 27514): Institute of Government, University of North Carolina at Chapel Hill, 1985.

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D, Lazell James, Hrsg. Ribbon of sand: The amazing convergence of the ocean & the Outer Banks. Chapel Hill: University of North Carolina Press, 2000.

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John, Alexander. Ribbon of sand: The amazing convergence of the ocean and the Outer Banks. Chapel Hill, N.C: Algonquin Books of Chapel Hill, 1992.

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Sarah, Friday, und UNC Sea Grant College Program., Hrsg. A guide to ocean dune plants common to North Carolina. Chapel Hill: Published for the University of North Carolina Sea Grant College Program by the University of North Carolina Press, 1988.

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The language of sand: A novel. New York: Bantam Books Trade Paperbacks, 2010.

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Bailey, K. H. The resurgence of the SCV-MOSB in North Carolina. Bloomington, Ind: AuthorHouse, 2005.

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Secrets in the sand: Archeology at Fort Raleigh, 1990-2010, Manteo, North Carolina: archeological resource study. Manteo, N.C: National Park Service, Outer Banks Group Headquarters, 2011.

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Woods, Sherryl. Sand Castle Bay. Harlequin Mills & Boon, Limited, 2013.

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Woods, Sherryl. Sand Castle Bay. Harlequin Enterprises, Limited, 2013.

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1934-, Pilkey Orrin H., Hrsg. The North Carolina shore and its barrier islands: Restless ribbons of sand. Durham: Duke University Press, 1998.

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Buchteile zum Thema "Sand bars – North Carolina"

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Danskin, Scott, und Brian Davis. „Sand Hills State Forest, South Carolina, United States of America“. In Forest Plans of North America, 209–15. Elsevier, 2015. http://dx.doi.org/10.1016/b978-0-12-799936-4.00024-2.

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„Biology and Management of Inland Striped Bass and Hybrid Striped Bass“. In Biology and Management of Inland Striped Bass and Hybrid Striped Bass, herausgegeben von Mark Mobley, Ed Shallenberger, Marc W. Beutel, Paul Gantzer und Brian Sak. American Fisheries Society, 2013. http://dx.doi.org/10.47886/9781934874363.ch10.

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<em>Abstract</em>.—Habitat for striped bass <em>Morone saxatilis</em>, hybrid striped bass, salmonids, and other coolwater and coldwater fishes can be limiting in stratified reservoirs during summer and early autumn as surface water temperatures increase above tolerable ranges and deeper waters are depleted of dissolved oxygen (DO). Usable habitat can be increased in these reservoirs using oxygen diffusers to increase DO concentrations in the cooler, deeper waters. Several oxygen diffuser systems are currently in operation. Some of the systems were originally designed to increase DO in hydropower reservoir releases, but have also created fish habitat as a result of the diffuser system’s efficient oxygen transfer capabilities in the reservoir. Several other systems are operated to improve water quality in the reservoir for water supply, and two systems have specific fish habitat maintenance goals. Improvements in DO for fish have been obtained at Calaveras Reservoir, California by the San Francisco Public Utility Commission, and fish studies at this reservoir are currently underway. In North Twin Lake, Washington, the Colville Confederated Tribes and Washington State University have documented improved trout habitat and reduced sulfide concentrations. Oxygenation of cool, deep water is now a proven technology that can alleviate summertime thermal and oxygen stress on striped bass and hybrid striped bass and can minimize habitat-related mortalities. The technology is being implemented specifically for striped bass with a large installation in J. Strom Thurmond Reservoir, South Carolina, for the Savannah District of the U. S. Army Corps of Engineers.
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„Biology, Management, and Protection of North American Sturgeon“. In Biology, Management, and Protection of North American Sturgeon, herausgegeben von Vaughn A. Snook, Edward J. Peters und Linda J. Young. American Fisheries Society, 2002. http://dx.doi.org/10.47886/9781888569360.ch13.

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<em>Abstract.</em>—Because of its endangered species status, information on habitat requirements of pallid sturgeon <em>Scaphirhynchus albus</em> is needed for recovery efforts. The mouth of the Platte River, Nebraska has been designated as part of a Recovery-Priority Management Area by the Pallid Sturgeon Recovery Plan, U.S. Fish and Wildlife Service. In 1998, 10 age-6 hatchery-reared pallid sturgeon were implanted with radio transmitters and released into the lower Platte River at Two Rivers State Recreation Area, Nebraska. Research continued in 1999 with implantation of 15 age-7 hatchery-reared pallid sturgeon. Movements and habitat use were assessed using airboat, riverbank, and aerial surveys. Movement upstream to a distance of 20 km was observed. However, the majority of fish remained between the release site and the mouth of the Platte River, a distance of approximately 65 km downstream. Most observations (85%) occurred at depths of 0.33–1.21 m. Mean column velocities of 0.41–1.00 m/s and bottom velocities less than 0.70 m/s were used at frequencies of 75% and 91%, respectively. Observations usually occurred in areas downstream of sand bars where currents converge. These habitats are unique to braided Great Plains Rivers and are most likely important to the recovery of this species.
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Goldsmith, Thomas. „“Like a Jackhammer”—How the Tune Works“. In Earl Scruggs and Foggy Mountain Breakdown, 60–71. University of Illinois Press, 2019. http://dx.doi.org/10.5622/illinois/9780252042966.003.0009.

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The driving 1949 recording of “Foggy Mountain Breakdown” showcased the groundbreaking banjo style that Scruggs developed in North Carolina. Beginning with a “pinch”—two strings hit strongly at once, the tune takes off, rocketing through 16 bars and 3 chords over and over, with only Scruggs and fiddler Benny Sims taking solos. Guitarist Lester Flatt makes prominent use of his characteristic “G-run” and elsewhere seems to hit E major chords where everyone else plays E minor. It’s a musical oddity that shows the relative novelty of minor chords in bluegrass, as well as creating an ear-catching sound. A section by section listen to the tune brings out Scruggs’s to-the-walls intensity as well as diversions such as a musical nod to “Columbia, the Gem of the Ocean.”
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Maun, M. Anwar. „The Ammophila problem“. In The Biology of Coastal Sand Dunes. Oxford University Press, 2009. http://dx.doi.org/10.1093/oso/9780198570356.003.0012.

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Even a cursory look on foredune plant communities shows vigorous dense stands of dune species in areas with moderate recurrent sand accretion levels specific for each plant species (Disraeli 1984; Maun and Baye 1989; Maun 1998). The phenomenon has been well documented in species of Ammophila arenaria (Carey and Oliver 1918; Tansley 1953), Corynephorus canescens (Marshall 1965), A. breviligulata (Eldred and Maun 1982) and Calamovilfa longifolia (Maun 1985). Burial has a positive influence on growth and flowering of plants and debilitated populations of foredune plant species can be rejuvenated by sand deposition (Maun 1998). Clear evidence of this phenomenon was presented by Maze and Whalley (1992a), who examined population dynamics of Spinifex sericeus in five zones receiving different amounts of sand deposition on a coastal dune system of Australia: the sea side of the first dune ridge, crest of first dune ridge, swale, Acacia thickets and stable hind dunes. In the very dynamic area on the sea side or toe of the first dune ridge (high beach) with regular burial or erosion of up to 1 m or more the plants produced very vigorous stolons with long internodes. On the crest of the dune ridge with sand deposition of about 17.5 cm per year even though plants had fewer stolons, they responded to burial by growing upwards with long internodes. In Acacia thickets in spite of very little sand deposition, plants were vigorous with little or no dead material, produced stolons and grew upwards with some long and some short internodes, probably because of greater nitrogen content in the soil. However, in the swale (slack) with little or no sand deposition, plants showed strong clumping tendency with very short internodes, a large amount of dead material on the surface and very low vigour. Unburied nodes usually died. Similarly, in the stable sand dunes with little or no sand deposition debilitated low-vigour clumps with very few stolons were abundant. Another example of this decline was presented by Martin (1959) on a shoreline along the Atlantic coast of North Carolina. He measured deposition and deflation of sand on two transects and showed that as one moved inland from the shoreline the total deposition of sand decreased.
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Martin, Nina. „Savior Entrepreneurs and Demon Developers“. In A Recipe for Gentrification, 54–70. NYU Press, 2020. http://dx.doi.org/10.18574/nyu/9781479834433.003.0003.

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This chapter considers the emergence of Durham, North Carolina as a “foodie” city. In particular, it focuses on the emergence of gourmet restaurants and bars as drivers of urban redevelopment in the downtown and adjacent Central Park neighborhood. The case study of Liberty Warehouse illustrates how “demon developers” come into conflict with “savior entrepreneurs” over the future of the Central Park neighborhood and its “soul.” The chapter seeks to complicate the simple categories of saviors and demons, by showing the complex roles each play in the development process and any ensuing gentrification. The savior narrative often underplays the role of this group in sparking displacement while overstating the corporatization impact of the developers. Finally, the chapter explores the tensions faced by the savior group, who daily confront the dissonance of their high social status and democratic values.
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„Anadromous Sturgeons: Habitats, Threats, and Management“. In Anadromous Sturgeons: Habitats, Threats, and Management, herausgegeben von R. Wilson Laney, Joseph E. Hightower, Beth R. Versak, Michael F. Mangold, W. W. Cole und Sara E. Winslow. American Fisheries Society, 2007. http://dx.doi.org/10.47886/9781888569919.ch9.

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<em>Abstract.</em>—Declines in Atlantic sturgeon <em>Acipenser oxyrinchus</em> abundance in the early 1990s led the Atlantic States Marine Fisheries Commission (ASMFC) to prepare a mandatory fishery management plan. The principal management measures are fishery closure, bycatch assessment, and bycatch reduction in other ASMFC-managed fisheries (i.e., American shad <em>Alosa sapidissima</em>). To better understand Atlantic sturgeon geographic distribution and habitat use, as well as risk of bycatch, we examined offshore distribution of Atlantic sturgeon based on incidental captures in winter tagging cruises conducted off the coasts of Virginia and North Carolina, including in and near extensive sand shoals adjacent to Oregon Inlet and Cape Hatteras. From 1988 to 2006, 146 juvenile Atlantic sturgeon were captured by bottom trawling in depths from 9.1 to 21.3 m. Numbers of Atlantic sturgeon captured and tagged in a given year ranged from 0 (1993, 1995) to 29 (2006). Atlantic sturgeon were encountered in 4.2% of tows, with the percentage varying from 0 in 1993 and 1995 to 12.6% in 1988. Capture patterns suggested that Atlantic sturgeon were likely aggregating to some degree. Total lengths of captured Atlantic sturgeon ranged from 577 to 1,517 mm (mean of 967 mm), suggesting that most fish were juveniles. Limited tag returns and genetic data suggest that fish wintering off North Carolina constitute a mixed stock. Information about their distribution and habitat utilization should benefit fishery managers seeking to reduce bycatch and protect key habitats.
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Konferenzberichte zum Thema "Sand bars – North Carolina"

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Konicki, Kathryn M., und Rob A. Holman. „Transverse Bars in Duck, North Carolina“. In 25th International Conference on Coastal Engineering. New York, NY: American Society of Civil Engineers, 1997. http://dx.doi.org/10.1061/9780784402429.277.

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Walsh, J. P., Ian W. Conery, D. Reide Corbett, David Mallinson, Keith Garmire, Thomas Allen und Christopher Freeman. „SAND RESOURCE NEEDS, DATA AVAILABILITY AND BEACH NOURISHMENT PROJECTS IN NORTH CAROLINA“. In 65th Annual Southeastern GSA Section Meeting. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016se-273991.

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Conery, Ian W., David Mallinson, D. Reide Corbett, J. P. Walsh und Paul Paris. „TARGETING MARINE SAND RESOURCES FOR NOURISHMENT ON THE OUTER CONTINENTAL SHELF OF NORTH CAROLINA“. In 68th Annual GSA Southeastern Section Meeting - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019se-325994.

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Mallinson, David J., Stephen J. Culver, Cody Wayne Allen und Ryan Mulligan. „STORM IMPACTS ON COASTAL AND INNER SHELF STRATIGRAPHY, PALEOENVIRONMENTAL RECONSTRUCTION, AND SAND RESOURCES: NORTHERN ONSLOW BAY, NORTH CAROLINA, USA“. In 68th Annual GSA Southeastern Section Meeting - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019se-327133.

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5

Pylypenko, Anton, Yevgenii Rastigejev, Lijun Wang und Abolghasem Shahbazi. „Experimental and Numerical Study of Cold Gas-Solid Flow Regimes in a Fluidized Bed Gasifier“. In ASME 2017 Power Conference Joint With ICOPE-17 collocated with the ASME 2017 11th International Conference on Energy Sustainability, the ASME 2017 15th International Conference on Fuel Cell Science, Engineering and Technology, and the ASME 2017 Nuclear Forum. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/power-icope2017-3263.

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The objective of this work is to analyze the dynamics and regimes of cold gas-solid flow in a biomass gasifier that is built at North Carolina Agricultural and Technical State University and to identify its corresponding ranges of operating conditions. The value of the minimum fluidization velocity Umf ≈ 8 cm/s has been found experimentally in a series of measurements of a pressure drop in the fluidized bed filled with Gledart type-B silica sand for the range of superficial gas velocities between 0 and 40 cm/s. To complement the experimental results, a set of three-dimensional numerical simulations of the isothermal gas-solid flow based on Eulerian-Eulerian approach has been performed. The analysis of the fluidization characteristics such as axial void fraction distributions has allowed us to evaluate the dependence of the bed expansion ratios from the flow superficial velocity. Good agreement between experimental and numerical results for the considered operating conditions of the gasifier has been observed.
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Berichte der Organisationen zum Thema "Sand bars – North Carolina"

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Resource potential for crushed stone, sand and gravel, and clay in the Charlotte 1 degree by 2 degrees Quadrangle, North Carolina and South Carolina. US Geological Survey, 1986. http://dx.doi.org/10.3133/i1251m.

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