Academic literature on the topic 'Long-term field experiments'

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Journal articles on the topic "Long-term field experiments"

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Merbach, W., and A. Deubel. "Long-term field experiments – museum relics or scientific challenge?" Plant, Soil and Environment 54, No. 5 (2008): 219–26. http://dx.doi.org/10.17221/395-pse.

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By reference to the Eternal Rye trial in Halle, Germany, as an example, it is demonstrated that long-term trials provide indispensable information for contemporary and future land use research. These trials serve as tools for the examination of cultivation measures or the effects of climate on nutrient dynamics and mobilization, microbial biodiversity, mineral composition or soil formation processes. They are therefore essential for the evaluation of land-use strategies or climatic change and, because of that, can provide more accuracy in related political considerations.
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Frye, W. W., and G. W. Thomas. "Management of Long‐Term Field Experiments." Agronomy Journal 83, no. 1 (1991): 38–44. http://dx.doi.org/10.2134/agronj1991.00021962008300010012x.

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Brown, J. R. "Summary: Long‐Term Field Experiments Symposium." Agronomy Journal 83, no. 1 (1991): 85. http://dx.doi.org/10.2134/agronj1991.00021962008300010020x.

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Christensen, Bent T. "The Askov long‐term field experiments." Archives of Agronomy and Soil Science 42, no. 3-4 (1997): 265–78. http://dx.doi.org/10.1080/03650349709385732.

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Balík, Jiří, Jindřich Černý, Martin Kulhánek, and Ondřej Sedlář. "Soil carbon transformation in long-term field experiments with different fertilization treatments." Plant, Soil and Environment 64, No. 12 (2018): 578–86. http://dx.doi.org/10.17221/591/2018-pse.

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Soil carbon transformation was observed in long-term stationary field experiments (longer than 20 years) at two sites with different soil-climatic conditions (Luvisol, Chernozem). The following crops were rotated within the trial: row crops (potatoes or maize)-winter wheat-spring barley. All three crops were grown each year. Four different fertilization treatments were used: (a) no fertilizer (control); (b) sewage sludge (9.383 t dry matter/ha/3 years); (c) farmyard manure (15.818 t dry matter/ha/3 years); (d) mineral NPK fertilization (330 kg N, 90 kg P, 300 kg K/ha/3 years). At the Luvisol s
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Vašák, F., J. Černý, Š. Buráňová, M. Kulhánek, and J. Balík. "Soil pH changes in long-term field experiments with different fertilizing systems." Soil and Water Research 10, No. 1 (2016): 19–23. http://dx.doi.org/10.17221/7/2014-swr.

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Černý, J., J. Balík, M. Kulhánek, and V. Nedvěd. "The changes in microbial biomass C and N in long-term field experiments." Plant, Soil and Environment 54, No. 5 (2008): 212–18. http://dx.doi.org/10.17221/393-pse.

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Microbial biomass nitrogen and carbon were studied in long-term field experiments with continuous cultivation of silage maize and with crop rotation. A positive effect of organic fertilizers on the microbial biomass nitrogen and the carbon content in soil was observed. Statistically significant effect of organic fertilizers on the higher content of microbial biomass C and N was established in the first year after their application. During the application the content of microbial biomass carbon and nitrogen decreased, but there were higher biomass C and N contents compared to control, even with
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Peterson, G. A., D. J. Lyon, and C. R. Fenster. "Valuing Long-Term Field Experiments: Quantifying the Scientific Contribution of a Long-Term Tillage Experiment." Soil Science Society of America Journal 76, no. 3 (2012): 757–65. http://dx.doi.org/10.2136/sssaj2011.0413.

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Sibbesen, Erik. "Soil movement in long-term field experiments." Plant and Soil 91, no. 1 (1986): 73–85. http://dx.doi.org/10.1007/bf02181820.

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Debreczeni, Katalin, and Martin Körschens. "Long-term field experiments of the world." Archives of Agronomy and Soil Science 49, no. 5 (2003): 465–83. http://dx.doi.org/10.1080/03650340310001594754.

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Dissertations / Theses on the topic "Long-term field experiments"

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Walters, Evan Robert. "Sulfate Reducing Bioreactor Dependence on Organic Substrates for Long-Term Remediation of Acid Mine Drainage." OpenSIUC, 2014. https://opensiuc.lib.siu.edu/theses/1397.

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Coal-generated acid mine drainage (AMD) is characterized by low-pH waters with excessive loads of dissolved species such as SO4, Fe, Al and Mn along with other elements of environmental concern (i.e. Cd, As, Cr, Ni, Pb, Se and Cu). To mitigate this problem, anaerobic sulfate reducing bioreactors (ASRB) have been implemented as a technology for passive treatment systems that utilize low-cost organic substrates to stimulate biologically enhanced contaminant sequestration. Previous work has identified the establishment of diverse microbial communities in which a hierarchal chain of substrate degr
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Bergkvist, Petra. "Long-term fate of sewage-sludge derived cadmium in arable soils : laboratory and field experiments, and modelling with SLAM and WHAM /." Uppsala : Dept. of Soil Sciences, Swedish Univ. of Agricultural Sciences, 2003. http://epsilon.slu.se/a410.pdf.

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Lång, Elisabeth. "Short- and Long-Term Influences of Education, Health Indicators, and Crime on Labor Market Outcomes : Five Essays in Empirical Labor Economics." Doctoral thesis, Linköpings universitet, Nationalekonomi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-140649.

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The objective of this thesis is to improve the understanding of how several individual characteristics, namely education (years of schooling), health indicators (height, weight, smoking, alcohol consumption, and exercise), criminal behavior, and crime victimization, influence labor market outcomes in the short and long run. The first part of the thesis consists of three studies in which I adopt a within-twin-pair difference approach to analyze how education, health indicators, and earnings are associated with each other over the life cycle. The second part of the thesis includes two studies in
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Ravelojaona, Nomena. "Evaluation of STICS model performance for long-term simulation of biomass production and nitrogen nutrition of spring barley and timothy cultivated in two important agricultural regions in Quebec (Canada)." Electronic Thesis or Diss., Bordeaux, 2023. http://www.theses.fr/2023BORD0503.

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L’orge de printemps (Hordeum vulgare L.) et la fléole des prés (Phleum pratense L.) sont des cultures de première importance économique pour la Province du Québec et d’autres régions de climat continental froid et humide (Amérique du Nord, les pays nordiques…). Les modèles sol-culture sont des outils puissants capables de calculer de nombreuses variables d’intérêt agronomique et environnemental. Ils sont conçus pour simuler les interactions complexes entre les cultures, l'eau et l'azote (N) du sol dans le continuum sol–plante–atmosphère. Entre autres modèles, STICS est un modèle sol–culture ba
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Norkaew, Saranya. "Soil Health Assessment of the Sanborn Field Long-term Experimental Study." Thesis, University of Missouri - Columbia, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=13877157.

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<p> Soil health assessment uses a combination of potential indicators affecting soil processes to comprehensively monitor soil change, caused by cropping systems and soil management. The objectives of the study were to assess the effects of selected cropping systems, soil management and landscape slope positions on the soil health characteristics of the Sanborn Field long-term experimental study in Columbia, Missouri, United States. Soil samples were collected on each of four dates over two years (8<sup>th</sup> May 2014, 4<sup>th</sup> September 2014, 1<sup>st</sup> April 2016, and 18<sup> th
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Winkelmann, Carola. "Predation effects of benthivorous fish on stream food webs – a large scale and long term field experiment." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2008. http://nbn-resolving.de/urn:nbn:de:bsz:14-ds-1219311896723-68232.

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It is a widely accepted assumption that fish predation controls structure and functioning of aquatic food webs. In the past, however, a large part of effort was concentrated on lakes and reservoirs. Thus, the knowledge about stream ecosystems is much more rudimentary than that for lakes in this respect. The aim of this thesis, therefore, was to describe and assess the effects of fish predation in natural stream ecosystems. For that purpose a reach scale field experiment was set up using an experimental stretch with benthivorous fish and a fishless reference stretch. A wide range of effects of
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Winkelmann, Carola. "Predation effects of benthivorous fish on stream food webs – a large scale and long term field experiment." Doctoral thesis, Technische Universität Dresden, 2007. https://tud.qucosa.de/id/qucosa%3A23819.

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It is a widely accepted assumption that fish predation controls structure and functioning of aquatic food webs. In the past, however, a large part of effort was concentrated on lakes and reservoirs. Thus, the knowledge about stream ecosystems is much more rudimentary than that for lakes in this respect. The aim of this thesis, therefore, was to describe and assess the effects of fish predation in natural stream ecosystems. For that purpose a reach scale field experiment was set up using an experimental stretch with benthivorous fish and a fishless reference stretch. A wide range of effects of
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Roman, Erika. "Maternal Separation in Rats : An Experimental Model for Long-Term Effects of Early Life Experiences on Neurochemistry, Voluntary Ethanol Intake and Exploration and Risk Assessment Behavior." Doctoral thesis, Uppsala universitet, Institutionen för farmaceutisk biovetenskap, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4465.

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The period of early life is important for the development of individual brain function and behavior. Human studies have shown altered vulnerability to develop psychopathology and/or excessive drug intake, possibly leading to dependence, as a consequence of early life experiences. In the present thesis, maternal separation (MS), an experimental model for studies of early environmental influences, was used to investigate long-term effects on neurochemistry, voluntary ethanol intake and exploration and risk assessment behavior in rats. Rat pups were assigned to one of three different rearing cond
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Bakker, Eleanor. "The impact of plant growth and potassium uptake on clay minerals in soil." Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAU012/document.

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Le potassium est un nutriment essentiel à la croissance et au développement des plantes. Les minéraux argileux dans les sols représentent un important réservoir de K disponible pour les plantes. L'extraction de K fixé à partir de l'espace interfoliaire des minéraux micacés 2:1 peut entraîner une augmentation de la distance feuillet à feuillet qui peut être mesurée par diffraction des rayons X . Des échantillons de l'expérience Morrow Plots continue avec du maïs (C) ou du maïs-avoine-foin (R), provenant de sous-parcelles fertilisées (F) et non fertilisées (U) pour les années 1904, 1957, 1980, 1
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Genero, Magalí Martí. "Microbial Communities in Boreal Peatlands : Responses to Climate Change and Atmospheric Nitrogen and Sulfur Depositions." Doctoral thesis, Linköpings universitet, Tema Miljöförändring, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-137487.

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Myrmarker har en stor roll i regleringen av den globala kolbalansen och koncentrationerna av koldioxid och metan i atmosfären, vilket gör dem till speciellt viktiga ekosystem ur ett klimatförandringsperspektiv. Förändringar av myrmarker genom naturlig utveckling eller antropogen påverkan kan därför få långtgående störningar av myrars klimatreglerande funktion. Mikroorganismer har en avgörande roll i biogeokemiska processer genom att t ex bryta ned organisk material i mark och därmed styra kolets kretslopp. För att förstå hur myrsystemen reagerar på störningar är det därför väsentligt att veta
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Books on the topic "Long-term field experiments"

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Bailey, David M. Long term field test results of experimental EPDM and PUF roofing. US Army Corps of Engineers, Construction Engineering Research Laboratory, 1990.

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Vinokurov, Igor', Oleg Chernov, and Boris Kochurov. Formation of adaptive landscape farming systems in the Vladimir region. INFRA-M Academic Publishing LLC., 2025. https://doi.org/10.12737/2113296.

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The monograph is devoted to the generalization of the results obtained in the framework of long-term field stationary experiments. The generalization is based on the concepts of adaptive landscape farming systems and regenerative farming. The monograph consists of three chapters, which consider the technological factors of the formation of adaptive landscape farming systems, soil resources and the problem of achieving sustainable development of agroecosystems. It is intended for specialists and researchers of agricultural and geographical profile, teachers and students of agricultural educatio
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Cook, Charles Michael. The experimental induction of the "sensed presence" by the application of magnetic fields whose temporal patterns simulate long-term potentiation. Laurentian University, Department of Psychology, 1996.

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The Effects of tributyltin (TBT) accumulation on adult dog-whelks, 'nucella lapillus': Long-term field and laboratory experiments. Cambridge University Press, 1987.

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Gibson, John, David McKenzie, Halahingano Rohorua, and Steven Stillman. The Long-Term Impact of International Migration on Economic Decision-Making: Evidence from a Migration Lottery and Lab-in-the-Field Experiments. World Bank, Washington, DC, 2016. http://dx.doi.org/10.1596/1813-9450-7848.

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BURAVTSEVA, T. V., I. N. PERCHUK, A. E. SOLOVEVA, M. V. GURKINA, and G. P. EGOROVA. COMMON BEAN (PHASEOLUS VULGARIS L.): ASSESSMENT OF PROTEIN CONTENT IN SEEDS WITH BRIEF DESCRIPTION OF USEFUL AGRONOMIC TRAITS. N.I. Vavilov All-Russian Institute of Plant Genetic Resources, 2021. http://dx.doi.org/10.30901/978-5-907145-73-3.

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The catalogue contains the results of protein content assessment in seeds of 216 common bean (Phaseolus vulgaris L.) accessions from the VIR plant genetic resources collection. The data of a long-term study with mean values of characters for each accession are presented. The study of main agronomic characters in the accessions was conducted from 2004 through 2018 in the experimental fields at Astrakhan Experiment Station of VIR. The accessions are described employing eight morphological and agronomic characters important for breeding practice. This catalogue is intended to serve as a tool in s
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Tesler, Michael, and John Zaller. The Power of Political Communication. Edited by Kate Kenski and Kathleen Hall Jamieson. Oxford University Press, 2014. http://dx.doi.org/10.1093/oxfordhb/9780199793471.013.003.

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Most scholars agree that the effects of mass communication are more than minimal. We find, however, that most communication effects are short-lived, involve mainly weakly held attitudes, and produce no political consequences. Party cues conveyed in mass communication can change attitudes, but usually weakly held ones; when individuals hold strong views, they often change parties rather than change attitudes. Non-partisan communication may not durably change any attitudes, even weakly held ones. These conclusions, derived from field studies rather than laboratory experiments, raise the old mini
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Farnsworth, John Seibert, and Thomas Lowe Fleischner. Nature beyond Solitude. Cornell University Press, 2020. http://dx.doi.org/10.7591/cornell/9781501747281.001.0001.

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The field notes taken for this book are not only about nature, but from nature as well. The book lets the reader peer over the author'shoulder as he takes his notes. The reader follows him to a series of field stations where he teams up with scientists, citizen scientists, rangers, stewards, and graduate students engaged in long-term ecological study, all the while scribbling down what he sees, hears, and feels in the moment. The field stations are located at Hastings Natural History Reservation, studying acorn woodpeckers; Santa Cruz Island Reserve, studying island foxes; Golden Gate Raptor O
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Warner, H. R. “Hal.” The Reservoir Engineering Aspects of Waterflooding. Society of Petroleum Engineers, 2015. http://dx.doi.org/10.2118/9781613994214.

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The first edition of The Reservoir Engineering Aspects of Waterflooding was published in 1970 and written by Forrest F. Craig, Jr. At the time of publication, much of the theory of oil displacement by water had been developed and many laboratory studies completed; however, the ability to perform computer modeling of 3D fluid flow in reservoirs with complex geologic depositions was in its infancy. In addition, several of the earliest, large-scale field applications of pattern waterflooding had begun, but long-term performance results were not yet known, and various infill drilling programs had
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Havstad, Kris M., Laura F. Huenneke, and William H. Schlesinger, eds. Structure and Function of a Chihuahuan Desert Ecosystem. Oxford University Press, 2006. http://dx.doi.org/10.1093/oso/9780195117769.001.0001.

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The Jornada Basin LTER is located in the Chihuahuan Desert, the largest in North America. This region of south central New Mexico has a history of nearly 100 years as the basis for scientific research. This work gives a thorough, encompassing review of the tremendous array of observations resulting from experiments conducted in this ecosystem. Beginning with thorough descriptions of the most salient features of the region, the book then reviews a wide range of archived and active data sets on a diversity of biotic and abiotic features. It next presents a syntheses of important topics including
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Book chapters on the topic "Long-term field experiments"

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Németh, T. "Nitrogen balances in long-term field experiments." In Fertilizers and Environment. Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1586-2_7.

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Emnova, E. "Biochemical Parameters of Arable Chernozem in Long-Term Field Experiments." In Soil as World Heritage. Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-6187-2_7.

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Körschens, Martin. "Long-Term Field Experiments (LTEs)—Importance, Overview, Soil Organic Matter." In Innovations in Landscape Research. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-67448-9_8.

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Libershteyn, J. "The Beginnings of Long-Term Field Experiments on Crop Rotations at Balti." In Soil as World Heritage. Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-6187-2_18.

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Kihanda, F. M., and G. P. Warren. "Management of Soil Fertility in a Long-Term Field Trial of Semi-arid Kenya." In Lessons learned from Long-term Soil Fertility Management Experiments in Africa. Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-2938-4_5.

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Hera, C. "Long-Term Field Experiments with Fertilizers in Romania: Their Relevance to Sustainable Agriculture." In Soil as World Heritage. Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-6187-2_17.

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Andrieş, S., V. Lungu, and N. Leah. "Long-Term Field Experiments as a Foundation for Conserving and Enhancing Soil Fertility." In Soil as World Heritage. Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-6187-2_20.

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Senikovskaya, I. "Biota of Typical Chernozem Under Different Land Uses in Long-Term Field Experiments." In Soil as World Heritage. Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-6187-2_4.

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Campbell, C. A., Y. w. Jame, O. O. Akinremi, and H. J. Beckie. "Evaluating Potential Nitrogen Mineralization for Predicting Fertilizer Nitrogen Requirements of Long-Term Field Experiments." In SSSA Special Publications. Soil Science Society of America, Inc., American Society of Agronomy, Inc., 2015. http://dx.doi.org/10.2136/sssaspecpub40.c5.

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Alcock, R. E., and K. C. Jones. "Long-Term Field Experiments and Implications for Soil Quality Assessment with Respect to Organic Contaminants." In Soil Quality, Sustainable Agriculture and Environmental Security in Central and Eastern Europe. Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-011-4181-9_9.

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Conference papers on the topic "Long-term field experiments"

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Aldykiewicz, Anthony, Neal S. Berke, Robert J. Hoopes, and Lianfang Li. "Long-Term Behavior of Fly Ash and Silica Fume Concretes in Laboratory and Field Exposures to Chlorides." In CORROSION 2005. NACE International, 2005. https://doi.org/10.5006/c2005-05253.

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Abstract Corrosion of steel in concrete in concrete due to the ingress of chloride is a major factor in the premature failure of steel reinforced concretes. Thus changes in the concrete mixture to reduce permeability to chloride are highly desirable. Lowering the water-to-cementitious ratio (w/cm) is a very effective means of reducing permeability. Pozzolans such as fly ash and silica fume are very effective in reducing the apparent diffusion coefficient for chloride at a given w/cm. Typically, most of the reduction in diffusion with silica fume occurs within the first 28 days, whereas fly ash
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Whitmore, David, David Simpson, and George Sergi. "A Two-Stage Cathodic Protection System Combining ICCP Components with Long-Term Galvanic Anode Steel Reinforcement Protection." In CONFERENCE 2023. AMPP, 2023. https://doi.org/10.5006/c2023-18868.

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Abstract Laboratory experiments established that corrosion of steel reinforcement can be arrested within relatively short periods if a sufficient cathodic current density higher than 20 mA/m2 is applied. After corrosion is arrested, it is only necessary to maintain steel passivity longer-term by cathodic prevention, a process that requires a much-reduced current density. Once the two-stage principle was tested and established in the laboratory, self-contained anodes were developed, each product comprising a battery-operated Impressed Current Cathodic Protection element and a galvanic anode com
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Hartt, William H., Shaowei Chen, and Steve Wolfson. "Deep Water Cathodic Protection: Field Deployment Results." In CORROSION 2002. NACE International, 2002. https://doi.org/10.5006/c2002-02020.

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Abstract Instrumented, steel plate specimens with various levels of galvanic anode cathodic protection were deployed at a 899 m (2,950 ft) Gulf of Mexico site for 405 days. Subsequent to recovery, potential and current records were analyzed; and the long-term, steady-state current density demand determined. This parameter (current density demand) was greater for specimens with a polished surface finish compared to ones that were atmospherically pre-rusted. Also, steady-state current density for the former was more sensitive to water velocity than were the latter. Current densities, particularl
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Zdunek, Alan D., Thomas J. Barlo, and Gary Warfield. "Effect of Temperature on Cathodic-Protection Criteria." In CORROSION 1992. NACE International, 1992. https://doi.org/10.5006/c1992-92378.

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Abstract Polarization scans and long-term, fixed-potential experiments were performed on mildsteel specimens in a soil leachate to quantify the effect of temperature on cathodic-protection requirements. Results indicate that the corrosion rate for the unpolarized condition increases with increasing temperature. In addition, the experiments show that the polarized potential and polarization needed to reduce the corrosion rate to at least 1 mpy (25.4 μm/y) also increase in magnitude. These results agree with preliminary field data from a thermally insulated pipeline.
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Been, J., R. Given, K. Ikeda-Cameron, and R. G. Worthingham. "Factors Affecting the Rate and Extent of Disbondment of FBE Coatings." In CORROSION 2005. NACE International, 2005. https://doi.org/10.5006/c2005-05138.

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Abstract External fusion bond epoxy (FBE) pipeline coatings have provided excellent protection and long-term service. However, field reports describe periodic blistering and coating disbondment. An investigative program consisting of a laboratory program and a program of field examinations had been initiated in order to understand the magnitude and causes of these phenomena. The laboratory experiments are described in this paper and the results are discussed in relation to the field experiences. FBE coating disbondment was tracked over time in four test environments that represent conditions o
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Lindquist Hoeke, Lisa J., Robert D. Moser, Preet M. Singh, Lawrence F. Kahn, and Kimberly E. Kurtis. "Degradation of Steel Girder Bridge Bearing Systems by Corrosion." In CORROSION 2009. NACE International, 2009. https://doi.org/10.5006/c2009-09228.

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Abstract Corrosion of anchor bolts in bridge bearings presents two principal problems: (1) failure of the anchorage due to loss of bolt shear strength, and (2) loss of bearing functionality due to the build up of corrosion products. Of Georgia’s 1500 steel girder bridges, 411 (27%) were found to be experiencing anchor bolt corrosion through routine bridge inspections. Field investigations were performed at eight bridges around Georgia. Anchor bolt corrosion was found to be locally accelerated, with necking occurring at the concrete interface. This degradation is primarily due to the formation
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Melchers, Robert E., and Robert Jeffrey. "Corrosion of Vertical Steel Strips Exposed in the Marine Tidal Zone and Implications for ALWC." In CORROSION 2010. NACE International, 2010. https://doi.org/10.5006/c2010-10223.

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Abstract Accelerated Low Water Corrosion (ALWC) particularly of steel sheet piling in harbors has been documented in various parts of the world. It is thought to involve microbiological influences but the precise mechanisms involved remain to be explained. This paper reports in-situ field investigations for the corrosion of long lengths of mild steel strips exposed at 10 locations on the Eastern Australian seaboard for up to 3 years. Preliminary results show that corrosion below the mean low water level was more severe for higher average concentrations of total nitrogen concentration in the bu
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Papavinasam, Sankara, and Alex Doiron. "External Corrosion Control of Northern Pipelines Influence of Construction Conditions on the Performance of Coatings." In CORROSION 2009. NACE International, 2009. https://doi.org/10.5006/c2009-09051.

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Abstract The design of coatings must be adequate to protect pipelines under long-term, severe environmental conditions, including the extreme climatic conditions that will apply in the North before the pipe is installed and operation begins. Practices and standardised methodologies for evaluating and qualifying pipeline coatings for application in northern pipelines are discussed. Results from laboratory and field experiments, carried out under the conditions to which coatings will be exposed during construction, are presented. Based on one-year laboratory experiments in which samples were exp
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Sagüés, Alberto A., and Rodney G. Powers. "Sprayed-Zinc Sacrificial Anodes for Reinforced Concrete in Marine Service." In CORROSION 1995. NACE International, 1995. https://doi.org/10.5006/c1995-95515.

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Abstract The use of sacrificial anodes consisting of sprayed zinc on the surface of concrete containing corroding reinforcing steel bars has been examined by means of field tests and laboratory experiments. The anodes are sprayed directly on the external surface of spalled regions of marine substructure elements. Electrical contact between the steel and zinc can be achieved efficiently by directly spraying over exposed steel. Field tests were made in the substructure of bridges in the Florida Keys and in Tampa Bay. The installations were performed economically and were functional after as much
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Zhong, Xiankang, Bruce Brown, Wei Li, Srdjan Nesic, and Marc Singer. "How to Maintain a Stable Solution Chemistry When Simulating CO2 Corrosion in a Small Volume Laboratory System." In CORROSION 2016. NACE International, 2016. https://doi.org/10.5006/c2016-07780.

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Abstract In laboratory experiments, corrosion of mild steel specimen in glass cells or autoclaves with a relatively small internal volume (of the order of 1 liter or less), will usually lead to a change in solution chemistry, (i.e., increase in ferrous ion concentration and solution pH) which will affect the corrosion product formation and ultimately the corrosion rate. However, in much larger field systems that are being simulated in the laboratory, such as for example oil and gas mild steel pipelines, the solution chemistry at any specific location does not change significantly over the same
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Reports on the topic "Long-term field experiments"

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Thompson and Lawson. L51959 Cathodic Protection Requirements for Mitigation Corrosion on Buried Pipelines. Pipeline Research Council International, Inc. (PRCI), 2002. http://dx.doi.org/10.55274/r0011277.

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As pipelines age, the need for predictive capability and comprehensive models for cathodic protection and corrosion mitigation is becoming significantly more critical. It is imperative that such models be developed to insure future pipeline integrity and risk management that is both economically feasible and utilizes best-practice engineering. Present cathodic protection (CP) models are based on a simplified mechanism of cathodic protection that does not explain certain basic field observations for operating underground pipelines. In addition, the lack of a comprehensive mechanism for cathodic
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Birkemeier, William, Kent Hathaway, Ravi Sinha, Kossi Edoh, Awatif Amin, and Hermant Pendharkar. Long-Term Archive of the DUCK94 Nearshore Field Experiment Data. Defense Technical Information Center, 2000. http://dx.doi.org/10.21236/ada609935.

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Birkemeier, William, Kent Hathaway, Ravi Sinha, Kossi Edoh, Awatif Amin, and Krishna Kulkarni. Long-term Archive of the DUCK94 Nearshore Field Experiment Data. Defense Technical Information Center, 1999. http://dx.doi.org/10.21236/ada630859.

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Birkemeier, William, Kent Hathaway, and Ravi Sinha. Long-term Archive of the DUCK94 Nearshore Field Experiment Data. Defense Technical Information Center, 2001. http://dx.doi.org/10.21236/ada626224.

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Dasberg, Shmuel, Jan W. Hopmans, Larry J. Schwankl, and Dani Or. Drip Irrigation Management by TDR Monitoring of Soil Water and Solute Distribution. United States Department of Agriculture, 1993. http://dx.doi.org/10.32747/1993.7568095.bard.

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Drip irrigation has the potential of high water use efficiency, but actual water measurement is difficult because of the limited wetted volume. Two long-term experiments in orchards in Israel and in California and several field crop studies supported by this project have demonstrated the feasibility of precise monitoring of soil water distribution for drip irrigation in spite of the limited soil wetting. Time Domain Reflectometry (TDR) enables in situ measurement of soil water content of well defined small volumes. Several approaches were tried in monitoring the soil water balance in the field
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Bailey, David M., Stuart D. Foltz, and Myer J. Rosenfield. Long Term Field Test Results of Experimental EPDM and PUF Roofing. Defense Technical Information Center, 1990. http://dx.doi.org/10.21236/ada226197.

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Buchler, M., H. G. Schoneich, and F. Stalder. DRS04BSS Criteria to Assess the Alternating Current Corrosion Risk of Cathodically Protected Pipelines. Pipeline Research Council International, Inc. (PRCI), 2004. http://dx.doi.org/10.55274/r0011818.

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This paper addresses the assessment of the corrosion risk of a pipeline due to alternating currents. The state of the art technique is the use of coupons, which simulate a coating fault and which allow to measure the ac-current density and also to evaluate corrosion products and pits. Recently, different criteria to assess the corrosion risk have been proposed that are based on the ratio between ac- and dc-current density or the instantaneous off-potential (high-speed off-potential measurement) measured on a coupon. Furthermore, the charge needed to oxidize corrosion products (under alkaline c
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Burdman, S., E. Welbaum, R. Walcott, and B. Zhao. erial fruit blotch, elucidating the mechanisms of fruit infection by Acidovorax citrulli. United States-Israel Binational Agricultural Research and Development Fund, 2020. http://dx.doi.org/10.32747/2020.8134162.bard.

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Bacterial fruit blotch (BFB) of cucurbits is caused by the Gram-negative bacterium Acidovorax citrulli. BFB affects cucurbit production worldwide, and mainly watermelon and melon. Most A. citrulli strains are divided into two genetically differentiated groups: while group I strains have been mainly associated with melon and other non-watermelon cucurbits, group II strains are more aggressive on watermelon. Like many Gram-negative plant-pathogenic bacteria, A. citrulli relies on a functional type III secretion system (T3SS) for pathogenicity. The T3SS is responsible for direct secretion of bact
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Matt, Nyman. Evaluation of Students’ Response to Field Trips to HJ Andrews Experimental Forest. Oregon State University, 2023. http://dx.doi.org/10.5399/osu/1162.

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The Andrews Forest Long-Term Ecological Research (LTER) site has a long-term partnership with the University of Oregon Environmental Leadership Program (ELP), providing service-learning opportunities for undergraduate students to facilitate field trips for middle school students to the Andrews LTER site. Undergraduate students develop field trip lessons based on Andrews Forest research and creative inquiry with support of Schoolyard LTER coordinator and Andrews LTER scientist Schulze. In Middle school students hiking in the Andrews LTER 2023, six classes and 156 students total engaged in day-l
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Soroker, V., and N. C. Rueppell. acterization of the architecture of hygienic behavior of honeybees to enable breeding for improved honeybee health. United States-Israel Binational Agricultural Research and Development Fund, 2021. http://dx.doi.org/10.32747/2021.8134169.bard.

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High honeybee colony losses in the last decade have raised the scientific efforts to determine and mitigate the causes of declining honeybee health. Although honeybees are exposed to a variety of stressors, infestation by the ectoparasitic mite (Varroa destructor) and the viruses it vectors are considered to be the most significant biological problem of A. mellifera worldwide. Management of viral diseases is problematic and mainly focuses on control of Varroa. Current Varroa control suffers from the evolution mite resistance, negative effects on bees and bee products, and other inefficiencies
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