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Letteratura scientifica selezionata sul tema "Erosion"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 luglio 2025

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Articoli di riviste sul tema "Erosion"

Perl, M., C. Levy, and Q. Ma. "The Influence of Multiple Axial Erosions on the Fatigue Life of Autofrettaged Pressurized Cylinders." Journal of Pressure Vessel Technology 123, no. 3 (2001): 293–97. http://dx.doi.org/10.1115/1.1372325.

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Erosion geometry effects on the mode I stress intensity factor (SIF) for a crack emanating from an erosion’s deepest point in a multiply eroded, autofrettaged, pressurized, thick-walled cylinder are investigated. The problem is simulated as a two-dimensional problem and is solved via the finite element method. Autofrettage, based on von Mises yield criterion, is simulated by thermal loading and SIFs are determined by the nodal displacement method. SIFs are evaluated for a variety of relative crack lengths, a0/t=0.01-0.45 emanating from the tip of erosions of different geometries, namely, (a) s

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Levy, C., M. Perl, and Q. Ma. "The Influence of Multiple Axial Erosions on a Three-Dimensional Crack in Determining the Fatigue Life of Autofrettaged Pressurized Cylinders." Journal of Pressure Vessel Technology 124, no. 1 (2001): 1–6. http://dx.doi.org/10.1115/1.1386656.

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Erosion geometry effects on the mode I stress intensity factor (SIF) for a crack emanating from an erosion’s deepest point in a multiply eroded, autofrettaged, pressurized, thick-walled cylinder are investigated. The problem is solved via the finite element method (FEM). Autofrettage, based on von Mises yield criterion, is simulated by thermal loading and SIFs are determined by the nodal displacement method. SIFs are evaluated for a variety of relative crack depths, a0/t=0.01-0.40, and crack ellipticities, a0/c=0.5-1.5, emanating from the tip of erosions of different geometry, namely: (a) semi

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Levy, C., M. Perl, and H. Fang. "Cracks Emanating From an Erosion in a Pressurized Autofrettaged Thick-Walled Cylinder—Part I: Semi-Circular and Arc Erosions." Journal of Pressure Vessel Technology 120, no. 4 (1998): 349–53. http://dx.doi.org/10.1115/1.2842342.

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Erosion geometry effects on the mode I stress intensity factor (SIF) for a crack emanating from the erosion’s deepest point in an autofrettaged, pressurized, thick-walled cylinder are investigated. The problem is solved via the FEM method and knowledge of the asymptotic behavior of short cracks. Autofrettage, based on von Mises yield criterion, is simulated by thermal loading and SIFs are determined by the nodal displacement method. SIFs are evaluated for a variety of relative crack lengths, a0/W = 0.01 – 0.45, emanating from the tip of erosions of different geometries. In Part I of this paper

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Levy, C., M. Perl, and Q. Ma. "The Influence of Finite Three-Dimensional Multiple Axial Erosions on the Fatigue Life of Partially Autofrettaged Pressurized Cylinders." Journal of Pressure Vessel Technology 125, no. 4 (2003): 379–84. http://dx.doi.org/10.1115/1.1616582.

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Erosion geometry effects on the mode I stress intensity factor (SIF) for a crack emanating from the farthest erosion’s deepest point in a multiply, finite-length or full-length eroded, partially autofrettaged, pressurized, thick-walled cylinder is investigated. The problem is solved via the FEM method. Autofrettage, based on von Mises’ yield criterion, is simulated by thermal loading and SIFs are determined by the nodal displacement method. SIFs were evaluated for a variety of relative crack depths, a/t=0.01-0.30 and crack ellipticities, a/c=0.5-1.5 emanating from the tip of the erosion of var

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Çetin Arslan, Hale, and Kadir Arslan. "Risk factors and outcomes of vaginal mesh erosions after pelvic reconstructive surgery: A retrospective cohort study." Medicine 104, no. 19 (2025): e42442. https://doi.org/10.1097/md.0000000000042442.

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Mesh erosions can occur in pelvic reconstructive surgeries for pelvic organ prolapse and stress urinary incontinence. The purpose of this study was to investigate the risk factors and outcomes of mesh erosion after surgical procedures using synthetic mesh. Pelvic reconstructive surgeries performed at a tertiary center during the 5 years between January 2019 and January 2024 were retrospectively analyzed. Patients were classified into the mesh erosion group and the non-erosion group. Clinical features and outcomes were compared. The study included 510 patients, 49 in the mesh erosion group and

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Srikhum, Waraporn, Warapat Virayavanich, Andrew J. Burghardt, et al. "Quantitative and Semiquantitative Bone Erosion Assessment on High-resolution Peripheral Quantitative Computed Tomography in Rheumatoid Arthritis." Journal of Rheumatology 40, no. 4 (2013): 408–16. http://dx.doi.org/10.3899/jrheum.120780.

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Objective.To develop novel quantitative and semiquantitative bone erosion measures at metacarpophalangeal (MCP) and wrist joints in patients with rheumatoid arthritis (RA) using high-resolution peripheral quantitative computed tomography (HR-pQCT), and to correlate these measurements with disease duration and bone marrow edema (BME) patterns derived from magnetic resonance imaging (MRI).Methods.Sixteen patients with RA and 7 healthy subjects underwent hand and wrist HR-pQCT and 3-Tesla MRI. Bone erosions of the MCP2, MCP3, and distal radius were evaluated by measuring maximal erosion dimension

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Sharma, Rohit, Ashish Mehrotra, Vinit K. Sharma, Zafar Iqbal, and Kunal Nigam. "A Retrospective Study of Bony Erosion Patterns in Cases of Fungal Rhinosinusitis." An International Journal Clinical Rhinology 9, no. 2 (2016): 62–64. http://dx.doi.org/10.5005/jp-journals-10013-1269.

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ABSTRACT Erosion of bone with or without extension of disease into adjacent anatomic spaces is observed among some patients with fungal rhinosinusitis (FRS). Preoperative computed tomographies is very important to determine the sites of bony erosion. Patients with bony erosions are classified based on the involved subsite and the extent of erosion. Bony erosions was seen in 37.5% cases. Six patients were having bone erosions on CT scan. 40 % erosions were present in patients belonging to younger age group. Erosion of sinus boundaries were more common in male patients (60%). The ethmoid sinus c

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Le, Phuong M., Sonali Pal-Ghosh, A. Sue Menko, and Mary Ann Stepp. "Immune Cells Localize to Sites of Corneal Erosions in C57BL/6 Mice." Biomolecules 13, no. 7 (2023): 1059. http://dx.doi.org/10.3390/biom13071059.

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Recurrent epithelial erosions develop in the cornea due to prior injury or genetic predisposition. Studies of recurrent erosions in animal models allow us to gain insight into how erosions form and are resolved. While slowing corneal epithelial cell migration and reducing their proliferation following treatment with mitomycin C reduce erosion formation in mice after sterile debridement injury, additional factors have been identified related to cytokine expression and immune cell activation. The relationship between recruitment of immune cells to the region of the cornea where erosions form and

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Mandl, P., I. Gessl, G. Filippou, et al. "POS0161 AN ULTRASOUND SCORING SYSTEM BASED ON THE SIZE AND NUMBER OF EROSIONS IS RELIABLE IN RHEUMATOID ARTHRITIS." Annals of the Rheumatic Diseases 82, Suppl 1 (2023): 303.1–303. http://dx.doi.org/10.1136/annrheumdis-2023-eular.2842.

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BackgroundUltrasound has been shown to be a valid tool for the evaluation of bone erosions in rheumatoid arthritis (RA), yet a consensual scoring system is lacking.ObjectivesTo assess the reliability of a semiquantitative scoring system for assessing structural bone erosion by ultrasound in a web-based reliability exercise.MethodsA task force of the OMERACT Ultrasound Working Group developed definitions and a scoring system for grading bone erosions which takes both the size and number of erosions into consideration. Pairs of static images (longitudinal and transverse) in DICOM format of metac

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Perl, M., C. Levy, and H. Fang. "Cracks Emanating From an Erosion in a Pressurized Autofrettaged Thick-Walled Cylinder—Part II: Erosion Depth and Ellipticity Effects." Journal of Pressure Vessel Technology 120, no. 4 (1998): 354–58. http://dx.doi.org/10.1115/1.2842343.

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In Part I of this paper, the effects of constant depth erosion on the mode I stress intensity factor (SIF) were determined for a crack emanating from the erosion deepest point in a pressurized, autofrettaged, thick-walled cylinder. The erosion geometries investigated included semi-circular erosions and several arc erosions of various radii of curvature. Due to the trends found in that portion of the study, erosion depth and ellipticity are believed to have equally important impact on the SIFs. The present paper delves further into these two parameters using the following configurations: (a) se

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Tesi sul tema "Erosion"

Åsen, Kristina, and Anna Boking. "Dental erosion : kolsyrade vattens erosiva potential." Thesis, Kristianstad University College, School of Health and Society, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hkr:diva-5272.

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<p>Syftet med studien var att undersöka den erosiva potentialen av vanligt förekommande kolsyrade vatten med eller utan smaksättning. Studien genomfördes som en laboratoriestudie vid Institutionen för Odontologi vid Göteborgs universitet. Totalt omfattades studien av 34 buteljerade kolsyrade vatten med eller utan smak, tre kolsyrade vatten producerade i kolsyreapparat samt sex referensdrycker. Samtliga produkter testades genom registrering av initialt pH med pH-elektrod och buffring med 0,1 M NaOH till det värde då pH neutraliserats. Dryckens surhetsgrad beräknades därefter vilket anses som et

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Giovanini, Junior Nelson. "Análise e aplicação de metodologias de predição de processos erosivos utilizando SIG na Bacia Hidrográfica do Córrego do Engano, Nova Canaã Paulista - SP /." Ilha Solteira, 2019. http://hdl.handle.net/11449/181272.

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Orientador: César Gustavo da Rocha Lima<br>Resumo: A bacia hidrográfica é uma unidade geomorfológica que agrega os impactos das interferências antrópicas e naturais sobre os recursos hídricos. Mudanças significativas nas características de uma bacia, causadas por processos naturais ou atividades antrópicas, podem gerar alterações, efeitos e impactos na estabilidade biótica e abiótica do sistema, desencadeando desequilíbrios ambientais e, portanto, a degradação da paisagem. Dentre os processos causadores dessa degradação, destaca-se a erosão dos solos. A erosão é um processo geológico responsáv

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Hamlin, Lauren Kearns. "Erosion." The University of Montana, 2009. http://etd.lib.umt.edu/theses/available/etd-05282009-130629/.

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Lönnborg, Pernilla. "Erosion." Thesis, KTH, Arkitektur, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-168677.

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Byggnader är under ständig förändring. Den omkringliggande miljön orsakar en nedbrytning i form av vittring. Material som bryts ner. Vi vet att en byggnad inte kommer att finns för alltid så vad händer om vi låter nedbrytningen vara en tillgång. Naturens processer ger oss perspektiv på tid. Årstider som följer varandra. Berg som eroderar och formeras. Hur kan man förstärka upplevelsen av tid och rum genom en byggnad som tillåts interagera med den omkringliggande miljön och vara under ständig förändring?<br>Buildings are constantly changing. The surrounding environment partly causes a breakdown

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Slotte, Mikael. "Erosion." Thesis, KTH, Arkitektur, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-146183.

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Rosenlunds sandbankar är ett naturskyddsområde mellan Jönköping och Huskvarna som rasar med ungefär 30 cm per år. Platsen tillåts att årligen krympa men inte att användas. Det görs inga större ansatser för att dokumentera den för framtida generationer eller synliggöra den för nu levande generationer. I detta examensarbete undersöks ett naturligt fenomen som kommer att påverka civilisationer i tusentals år. Examensarbetet syftar i första hand till att återintroducera en bortglömd plats och beskriva hur den förändras i tid och rum. Med hjälp av studier om erosion, landhöjning, istid och med hjäl

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Dotson, Matthew. "Erosion." Diss., University of Iowa, 2010. https://ir.uiowa.edu/etd/490.

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In my work I am often drawn to relatively simple systems that unfold before the listener. In Erosion, there are several of these processes which unfold simultaneously. The piece begins with a pitch cluster that gradually spreads into total chromatic saturation (about half-way through the piece) before shrinking back into clusters. As this is happening there is, on a macro level, a gradual speeding of events throughout the entire duration of the work. The interactions between this linear progression in the time domain and the (relatively) cyclical progression in the frequency domain form the ma

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Garcia-Chevesich, Pablo Andres. "Erosion Processes and Control." Diss., The University of Arizona, 2009. http://hdl.handle.net/10150/195844.

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This dissertation represents a unique contribution to the Spanish literature of soil erosion. The author of this document has written and published "Procesos y control de la erosion", a textbook about the engineering of soil erosion processes and the design of the most up-to-date methods and products used for erosion control. The text has been presented in Appendix A.Besides the above, the author of this dissertation is an active committee member at the International Erosion Control Association (IECA), specifically the International Development and the SOIL Fund programs. IECA members are dra

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Cruz, Carla da [UNESP]. "Análise comparativa da evolução das boçorocas nos anos de 1962 e 1999 nos municípios de Pompéia e Oriente SP." Universidade Estadual Paulista (UNESP), 2003. http://hdl.handle.net/11449/92940.

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Made available in DSpace on 2014-06-11T19:26:15Z (GMT). No. of bitstreams: 0 Previous issue date: 2003-01-13Bitstream added on 2014-06-13T18:54:25Z : No. of bitstreams: 1 cruz_c_me_rcla.pdf: 5048620 bytes, checksum: c2c3ba7c2e63bbfe95d39f75f71b9604 (MD5)<br>Realizou-se neste trabalho a análise comparativa entre boçorocas existentes no ano de 1962 com as do ano de 1999, enfocando sua evolução, estabilização e reutilização nos municípios de Pompéia e Oriente, localizados no Planalto Ocidental Paulista, Esta análise constituiu-se de fotointerpretação de fotografias aéreas da área de estudo, na

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Oliveira, Rodolfo Lopes de Souza. "Análise e caracterização da dinâmica geomórfica erosiva da área urbana de Alfenas, sul de Minas Gerais." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/8/8135/tde-13052015-112055/.

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Os processos relativos à urbanização promovem alterações nas dinâmicas naturais, inclusive, sobre o relevo. Assim, a Geomorfologia apresenta-se como uma área de conhecimento importante para orientar a ocupação, estudando a evolução das formas e como estas passam a ser definidas na paisagem. Por essa premissa, este trabalho objetiva analisar o grau de suscetibilidade dos materiais superficiais e da morfologia do relevo da área urbana de Alfenas MG a processos erosivos, justificando-se pela sua proposta de direcionamento para entender as respostas e as reações do relevo e do uso do solo às prec

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Schmidt, Walter, and Marcus Schindewolf. "Erosion 3D Sachsen." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-38172.

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Für die Erstellung von Bewirtschaftungs- und Maßnahmenplänen (FFH, EU-WRRL) ist es erforderlich, den bislang noch sehr hohen Aufwand für die Datenbeschaffung und -generierung im Rahmen der Modellierung mit EROSION 3D zu senken. Erreicht werden soll eine schnellere sowie effizientere Abschätzung von Landnutzungsänderungen, Landschaftseingriffen, des Klimawandels usw. auf Oberflächenabfluss, Bodenabtrag sowie Sedimenteintrag in Gewässer mit EROSION 3D. Im vorliegenden Projekt ist es gelungen, Parametrisierung und Modellanwendung so zu kombinieren, dass eine Bodenabtragssimulation mit dem Modell

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Libri sul tema "Erosion"

Montalais, Jacques de. Erosion. Le Pont de l'Epee, 1985.

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Riley, Joelle. Erosion. Lerner Publications Co., 2007.

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Zappa, Marcia. Erosion. ABDO Pub. Co., 2011.

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Pelleschi, Andrea. Erosion. Houghton Mifflin, 2005.

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Zaro, Mariano. Poems of erosion: Poemas de la erosión. Carayan Press, 2003.

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Charlier, Roger H., and Christian P. De Meyer. Coastal Erosion. Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/bfb0011384.

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Schmidt, Jürgen, ed. Soil Erosion. Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/978-3-662-04295-3.

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Xu, Xiangzhou, Tongxin Zhu, Hongwu Zhang, and Lu Gao. Experimental Erosion. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-3801-8.

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Branch, Alberta Alberta Agriculture Conservation and Development. Water erosion. Alberta Agriculture, Conservation and Development Branch, 1990.

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1932-, Burnham C. P., Pitman J. I, and South East England Soils Discussion Group., eds. Soil erosion. South East England Soils Discussion Group, 1987.

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Capitoli di libri sul tema "Erosion"

Roth, Lawrence O., and Harry L. Field. "Erosion and Erosion Control." In An Introduction to Agricultural Engineering: A Problem-Solving Approach. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-1425-7_18.

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Roth, Lawrence O., and Harry L. Field. "Erosion and Erosion Control." In Introduction to Agricultural Engineering. Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3594-2_18.

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Field, Harry L., and John M. Long. "Erosion and Erosion Control." In Introduction to Agricultural Engineering Technology. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-69679-9_18.

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Zorn, Matija, and Blaž Komac. "Erosion." In Encyclopedia of Natural Hazards. Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-1-4020-4399-4_120.

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Jahren, Per, and Tongbo Sui. "Erosion." In How Water Influences Our Lives. Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-1938-8_8.

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Brady, Roland H. "Erosion." In Encyclopedia of Earth Sciences Series. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-12127-7_114-1.

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Weik, Martin H. "erosion." In Computer Science and Communications Dictionary. Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_6393.

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Schuurs, Albert. "Erosion." In Pathology of the Hard Dental Tissues. John Wiley & Sons, Ltd,., 2013. http://dx.doi.org/10.1002/9781118702659.ch6.

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Storey, P. J. "Erosion." In Conservation and Improvement of Sloping Lands, Vol. 1. CRC Press, 2024. http://dx.doi.org/10.1201/9781003579243-7.

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Gooch, Jan W. "Erosion." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_4496.

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Atti di convegni sul tema "Erosion"

Corey, Robert G., and Vijay K. Sethi. "Erosion-Corrosion Synergistics in the Low Erosion Regime." In CORROSION 1986. NACE International, 1986. https://doi.org/10.5006/c1986-86114.

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Abstract Many engineering alloys display good high temperature corrosion resistance. However, when they are used in corrosive environments where they are subjected to erosion also, the corrosion resistance has been adversely affected. The phenomenon known as erosion-corrosion is complex and requires detailed investigation of how the erosion and corrosion kinetics interact and compete. At the Kentucky Center for Energy Research Laboratory, an erosion-corrosion tester was constructed. The tester was used to perform some preliminary erosion-oxidation tests on 2 1/4 Cr-1 Mo steel at the 500-600° C

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McLaury, B. S., S. A. Shirazi, J. R. Shadley, and E. F. Rybicki. "Parameters Affecting Flow Accelerated Erosion and Erosion-Corrosion." In CORROSION 1995. NACE International, 1995. https://doi.org/10.5006/c1995-95120.

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Abstract Sand erosion can remove protective corrosion scales on pipe walls and cause severe erosion-corrosion damage. Many factors influence erosion-corrosion. The goal of this work is to obtain an understanding of how these factors work together to cause severe erosion-corrosion damage. To reach this goal, a combination of erosion testing and flow modeling, including sand erosion, is used. This approach includes the effects of pipe geometry, size, and pipe wall material; flow velocity, fluid density and viscosity; sand size, shape, density, and sand production rate on the loss of wall thickne

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Solomon, N. G. "Erosion Resistant Coatings for Fluidized Bed Boilers." In CORROSION 1997. NACE International, 1997. https://doi.org/10.5006/c1997-97135.

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Abstract Erosion is a generic problem in fluidized bed boilers. This paper identifies the erosion-prone areas in circulating and bubbling bed fluidized bed boilers, and the currently used methods for erosion protection. Recent experience with thermal spray coatings in these areas is discussed as are the complications presented by burning fuels that introduce corrosion to the already erosive environment. The paper concludes with some comments on future considerations for the protection of fluidized bed pressure parts from general wastage due to erosion and corrosion.

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Addis, J., B. Brown, and S. Nesic. "Erosion-Corrosion in Disturbed Liquid/Particle Flow." In CORROSION 2008. NACE International, 2008. https://doi.org/10.5006/c2008-08572.

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Abstract Erosion-corrosion occurs in pipelines that transport both corrosive liquids and erosive solid particles. This study has tested the erosion-corrosion behavior of mild carbon steel under conditions where there is no protective iron carbonate film. High and low NaCl concentrations were studied in order to determine the effect of salt concentration on the erosion-corrosion process as well as the individual pure corrosion and pure erosion processes. The effect of erosion-corrosion on mild steel was tested under disturbed flow by using a specially designed test section consisting of three f

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Vera, Jose, Francois Ayello, Guanlan Liu, Richard Eckert, and Prabhas Bhat. "Guideline to Determine Erosional Velocity for Liquid Hydrocarbon Transmission Pipelines." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-17812.

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Abstract Erosion can be a major threat to liquid hydrocarbon transmission pipeline integrity if high liquid flow rates are combined with the presence of solid particles. Erosion may cause metal loss to the pipeline and in extreme cases lead to pipeline failure. There is currently no industry-recognized guidance document or standard for determining erosional velocity limits for liquid hydrocarbon transmission pipelines. Many operators use the general form of the American Petroleum Institute RP 14E equation to determine erosional velocity, but it does not properly address the effect of the key p

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Nassef, Anass S., Michael W. Keller, and Siamack A. Shirazi. "Erosion/Corrosion of Duplex Stainless Steel in Sweet Production with Sand versus CaCO3." In CONFERENCE 2023. AMPP, 2023. https://doi.org/10.5006/c2023-19394.

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Abstract Erosion-Corrosion behavior of 2507 duplex stainless steel was studied in a CO2 saturated environment (sweet production) as it was impinged by CaCO3 and sand particles. Experimental data were collected with the objective of investigating the performance of 2507 duplex stainless steel on mitigating CO2 corrosion in erosive environments. Pure erosion, pure corrosion and erosion-corrosion tests were conducted in a flow loop with a direct impingement configuration. Weight loss (WL) and electrochemical linear polarization (LPR) methods were utilized in this study. While WL method was used t

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Pérez-De-Obanos, Mercedes, Soraya Rodríguez, Haydee Contreras, and Ioana C. Grigorescu. "Dry Erosion and Corrosion-Erosion Results for Thermoplastics and Metallic Alloys." In CORROSION 2000. NACE International, 2000. https://doi.org/10.5006/c2000-00559.

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Abstract A high damage rate was found on the inner surface of a Phosphoric Acid Evaporator Chamber. A substitution of the original poly-isoprene or natural rubber (NR) liner was proposed. Lack of wet erosion comparative data, demanded to perform laboratory erosion-corrosion tests on possible substitutes: fluorinated ethylene-propylene copolymer (FEP); polyvinylidene fluoride (PVDF); ethylene-tetrafluorethylene copolymer (ETFE); and superalloy UNS N08700 (wt. %: 24Ni, 20Cr, 4.5Mo; 1.5Cu, Fe bal.) Non-standardized tests were performed using a stirring system with four flat samples as blades, whi

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Zhang, Yongli, Brenton S. McLaury, Siamack A. Shirazi, and Edmund F. Rybicki. "A Two-Dimensional Mechanistic Model for Sand Erosion Prediction Including Particle Impact Characteristics." In CORROSION 2010. NACE International, 2010. https://doi.org/10.5006/c2010-10378.

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Abstract The design of oil and gas production equipment to withstand erosive conditions and optimize the production rate, while keeping the piping system operating safely, requires a reliable erosion prediction tool. It is well known that many factors can affect erosion damage, such as flow geometry, pipe material, carrier fluid properties, flow conditions and flow regime, and particle properties. To predict erosion, a key ingredient is to have properly calculated particle impact parameters, such as impact velocity, impact angle, impact location, and impact frequency. The guideline in API RP 1

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Sani, Fazlollah Madani, Srdjan Nesic, Sytze Huizinga, and Khlefa Esaklul. "Review of the API RP 14E Erosional Velocity Equation: Origin, Applications, Misuses and Limitations." In CORROSION 2019. NACE International, 2019. https://doi.org/10.5006/c2019-13206.

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Abstract Oil and gas companies apply different methods to limit erosion-corrosion of mild steel lines and equipment during the production of hydrocarbons from underground reservoirs. One of the frequently used methods is limiting the flow velocity to a so-called “erosional velocity,” under which it is assumed that no erosion-corrosion would occur. Over the last 40 years, the American Petroleum Institute recommended practice 14E (API RP 14E) equation has been used by many operators to estimate the erosional velocity. The API RP 14E equation has become popular because it is simple to apply and r

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Lockett, T. J., J. Saponja, and D. Queen. "Erosion During Underbalanced Drilling." In CORROSION 2000. NACE International, 2000. https://doi.org/10.5006/c2000-00082.

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Abstract This paper illustrates the process of erosion and erosion management during the UnderBalanced Drilling (UBD) of a series of gas wells in the Southern North Sea. In this context, tonnes of solids can be brought to the surface in a short time frame and induce erosion sufficient to threaten plant integrity. Preferred units for erosion are therefore mm/tonne of solids produced rather than the traditional units mm/yr derived from corrosion management. This paper presents: the role of an erosion assessment in advance of drillingthe practical measures put in place to minimise the risk from e

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Rapporti di organizzazioni sul tema "Erosion"

Lyczkowski, R. W., J. X. Bouillard, S. M. Folga, and S. L. Chang. User`s manual for EROSION/MOD1: A computer program for fluids-solids erosion. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/10108132.

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Inghram, M. G. Erosion along the Kenai River. Alaska Division of Geological & Geophysical Surveys, 1985. http://dx.doi.org/10.14509/1130.

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Knight, Lynn, and Suzy Hodgson. Economics of Gully Erosion Stabilization. USDA Northeast Climate Hub, 2018. http://dx.doi.org/10.32747/2018.6893749.ch.

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Rainfall intensity is increasing in the Northeastern U.S. Stabilizing gullies is one strategy for adapting to this changing climate. This case study evaluates the costs and benefits of restoring gullies at Last Resort Farm.

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Frederick, Jennifer M., Matthew Anthony Thomas, Diana L. Bull, Craig A. Jones, and Jesse D. Roberts. The Arctic Coastal Erosion Problem. Office of Scientific and Technical Information (OSTI), 2016. http://dx.doi.org/10.2172/1431492.

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Whyte, D. G., R. Bastasz, W. R. Wampler, J. N. Brooks, W. P. West, and C. P. C. Wong. Divertor erosion in DIII-D. Office of Scientific and Technical Information (OSTI), 1998. http://dx.doi.org/10.2172/654183.

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Montalvo-Bartolomei, Axel, Bryant Robbins, Erica Medley, and Benjamin Breland. Backward erosion testing : Magnolia Levee. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/42140.

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Using a confined flume device, an experimental study investigated the critical horizontal gradient of soils obtained from a site identified as potentially vulnerable to backward erosion piping (BEP). Tests were conducted on glacial outwash material obtained from a sand and gravel quarry in the vicinity of Magnolia Levee in the community of Magnolia, OH. The two bulk samples collected from the quarry had similar grain-size distributions, grain roundness, and depositional environments as the foundation materials beneath the levee. Samples were prepared at various densities and subjected to gradu

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Shannon, Jameson. Low-logistic erosion control methodologies. Engineer Research and Development Center (U.S.), 2022. http://dx.doi.org/10.21079/11681/46914.

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This paper provides an in-depth review of certain slope stability practices discussed in ERDC/GSL TR-19-44, a technical report titled Erosion Control of Earth Covered Magazines to Maintain Minimum Cover Requirements. At the request of the sponsor, US Army Engineering and Support Center, this document specifically focuses on cost-efficient, low-logistic methods of erosion control such as shotcrete and spray-applied stabilizers.

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Maniaci, David, Hamish MacDonald, Joshua Paquette, and Ryan Clarke. Leading Edge Erosion Classification System. Office of Scientific and Technical Information (OSTI), 2023. http://dx.doi.org/10.2172/2432094.

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Overbeck, J. R. Coastal flooding & erosion in Alaska. Alaska Division of Geological & Geophysical Surveys, 2018. http://dx.doi.org/10.14509/30057.

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Solomon, S. M. Ivvavik National Park coastal erosion study. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1996. http://dx.doi.org/10.4095/208498.

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