Relevant bibliographies by topics / String in art

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'String in art'

Author: Grafiati
Published: 4 June 2021
Last updated: 31 July 2024

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Journal articles on the topic "String in art"

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Quenell, Gregory. "Envelopes and String Art." Mathematics Magazine 82, no. 3 (June 2009): 174–85. http://dx.doi.org/10.1080/0025570x.2009.11953616.

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Quenell, Gregory. "Envelopes and String Art." Mathematics Magazine 82, no. 3 (June 1, 2009): 174–85. http://dx.doi.org/10.4169/193009809x468779.

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Birsak, Michael, Florian Rist, Peter Wonka, and Przemyslaw Musialski. "String Art: Towards Computational Fabrication of String Images." Computer Graphics Forum 37, no. 2 (May 2018): 263–74. http://dx.doi.org/10.1111/cgf.13359.

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Schwartz, Richard Evan. "Circle quotients and string art." Topology 41, no. 3 (May 2002): 495–523. http://dx.doi.org/10.1016/s0040-9383(01)00017-9.

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Yan, Yu-Song, Hui-Li Cai, and Bin Yan. "Data Hiding in Symmetric Circular String Art." Symmetry 12, no. 8 (July 26, 2020): 1227. http://dx.doi.org/10.3390/sym12081227.

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Creative digital artwork is usually the outcome of a long period of intellectual creation and labor of an artist. Similarly, computer-created digital artwork is an outcome of a large amount of machine time and computational resources. However, such intellectual properties can be easily copied by illegal users. Copyright protection of digital art is increasingly more important than before. Recently, using a computational approach to generate string art tends to be popular and attractive. To protect the illegal usage of the digital form of string art, we propose a data hiding algorithm specifically designed for string art. A digital string art image consists of a sequence of string lines, each specified by two nails fixed at the two ends of that line. The encrypted secret data (the watermark) is embedded into the list of line segments by odd–even modulation, where a bit ‘1’ is embedded by forcing the next node to be an odd node, and a bit ‘0’ is embedded by forcing the next node to be an even node. To minimize the impact of data embedding on the quality of the original string art image, a local optimization algorithm is developed to select the nodes that produce minimal distortion. To quantify the embedding distortion, we introduce a smoothing filter model for the human vision system (HVS) specifically tailored to string art image. Experimental results show that using the proposed algorithm, the distortion between the original string art image and the watermarked string art image is unnoticeable. The modified string art image is statistically indistinguishable from the original string art, and hence is secure under steganalysis. To our best knowledge, this is the first work towards data hiding and copyright protection of digital string art.
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von Renesse, Christine, and Volker Ecke. "Discovering The Art of Mathematics: Using String Art to Investigate Calculus." PRIMUS 26, no. 4 (April 21, 2016): 283–96. http://dx.doi.org/10.1080/10511970.2015.1124160.

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Williams, Trevor. "Serving Art: Career Paths for String Players." American String Teacher 39, no. 2 (May 1989): 55–56. http://dx.doi.org/10.1177/000313138903900217.

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Fanelli, Michael. "The Art of String Teaching and Performance." American String Teacher 58, no. 1 (February 2008): 44–45. http://dx.doi.org/10.1177/000313130805800108.

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Fox, Christopher, and Ellen Fallowfield. "EDITORIAL: THE ART OF THE STRING MULTIPHONIC." Tempo 74, no. 291 (December 19, 2019): 3–5. http://dx.doi.org/10.1017/s0040298219000949.

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Haye, Roberta La. "String Art in a First Calculus Course." PRIMUS 26, no. 4 (April 21, 2016): 274–82. http://dx.doi.org/10.1080/10511970.2015.1124302.

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Dissertations / Theses on the topic "String in art"

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DeAngelo, Justin. "Zen and the art of motorcycle maintenance : score and analysis /." View online, v.1, 2008. http://repository.eiu.edu/theses/docs/32211131458621.pdf.

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Yang, Benjamin H. (Benjamin Hoh). "A Study of the Relationship Between Motive and Structure in Brahms's op. 51 String Quartets." Thesis, University of North Texas, 1989. https://digital.library.unt.edu/ark:/67531/metadc332309/.

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In 1873, Brahms completed the two op. 51 quartets. These were not the first string quartets Brahms composed, hut they were the first that Brahms allowed to be published. He found the string quartet difficult; as he confided to his friend Alwin Cranz, he sketched out twenty string quartets before producing a pair he thought worthy of publishing. Questions arise: what aspect of the string quartet gave Brahms so much trouble, and what in the op. 51 quartets gave him the inclination to publish them for the first time in his career? The op. 51 quartets are essential to understanding the evolution of Brahms's compositional technique. Brahms had difficulty limiting his massive harmony and polyphony to four solo strings. This difficulty was compounded by his insistence on deriving even the accompaniment from the opening main motivic material. This study investigates the manner in which Brahms distributes the main motivic material to all four voices in these quartets, while at the same time highlighting each voice effectively in the dialogue.
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Milne, Joanne Leonie. "Invisible structures = Estructures invisibles." Doctoral thesis, Universitat de Barcelona, 2016. http://hdl.handle.net/10803/365579.

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This thesis is an investigation into the visualization of cosmological propositions associated with string theory. Research into the work of contemporary theoretical physics led to the question, how does one visualize what cannot be seen? The imperceptible nature of the hypothetical propositions of string theory opened up an exploration into what forms in the past have been given to invisible structures and what kinds of methods have been used to visualize them? My artistic research looks at some of the methodologies and methods used by artists and scientists to visualize structures that can't be seen by the naked eye. I present a series of examples that reflect some of the direct and indirect methods used to instantiate invisible structures in the arts and the sciences. These examples configure an eclectic atlas of visualizations that evidence the use of drawing, indexing and simulation to reveal imperceptible structures that are physical, temporal, recorded and invented. It considers some of the visual shifts in the interpretations of other cosmological models and the impact technological advances have had on the visualization of the micro-cosmos. It traces some of the connections linking visualization practices in the arts and sciences and highlights the importance of inference and imagination in the visualization of what can't be seen. My conclusion indicates that there are many ways to visualize what lies beyond the naked eye but that all involve human agency. The findings point to the role tacit knowledge and context play in the fabrication of visualizations of invisible structures. It highlights the historical specificity of visualization practices and the importance aesthetics play in both the arts and sciences. I conclude that to visualize invisible structures is to weave an intricate web of fact and fiction. But the elaboration of these visualizations can facilitate understanding and offer insights into otherwise imperceptible phenomena.
Este proyecto investiga la visualización de las propuestas cosmológicas relacionadas con la teoría de cuerdas. Esta consideración del trabajo teórico de la física contemporánea me llevó a cuestionar cómo se visualiza lo que no se puede ver. La naturaleza imperceptible de las propuestas hipotéticas alrededor de la teoría de las cuerdas me condujo a una exploración sobre las formas en que se han visualizado las estructuras invisibles en el pasado, y los métodos usados para crear estas visualizaciones. En esta investigación artística se analizan algunos de los métodos utilizados por artistas y científicos para visualizar las estructuras que son imperceptibles a simple vista. Para ello, se presentan una serie de ejemplos que reflejan los métodos directos e indirectos utilizados para mostrar las estructuras invisibles en las ciencias y las artes. Estos ejemplos configuran un atlas ecléctico de visualizaciones que evidencian el uso del dibujo, de los sistemas de impresión y de la simulación, como medios para revelar estructuras imperceptibles, ya sean físicas, temporales, registradas o inventadas. Se han considerado también las transiciones en los patrones cosmológicos y el impacto que han tenido los avances tecnológicos en la visualización del microcosmos. Se trata de trazar las conexiones entre las prácticas de visualización de las artes y las ciencias, subrayando la importancia de la inferencia y la imaginación en la visualización de aquello que no se puede ver. Hay muchas maneras de visualizar lo que subyace más allá de lo que el ojo humano es capaz de ver, pero la intervención humana está implícita en todas. Se constata el papel del conocimiento tácito y el contexto en la fabricación de las visualizaciones de las estructuras invisibles. Se remarcan los estilos históricamente concretos de las visualizaciones, así como la importancia de la estética, tanto en las artes, como en las ciencias. En conclusión, visualizar las estructuras invisibles es como tejer un tejido intrincado entre la realidad y la ficción. No obstante, su desarrollo puede transformar nuestra comprensión y llevar a nuevos conocimientos sobre elementos y fuerzas hasta la fecha imperceptibles.
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Tirey, Amandda Leigh. "Strange juice." The Ohio State University, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=osu1382707435.

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Klotz, Anthony. "Spontaneous Knotting of Agitated Strings." VCU Scholars Compass, 2009. http://scholarscompass.vcu.edu/etd/1823.

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Campbell, Andrew (Andrew S. ). "Tempered Confetti: Defining Instrumental Collage Music in Tempered Confetti and Venni, Viddi, --." Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc862786/.

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This thesis explores collage music's formal elements in an attempt to better understand its various themes and apply them in a workable format. I explore the work of John Zorn; how time is perceived in acoustic collage music and the concept of "super tempo"; musical quotation and appropriation in acoustic collage music; the definition of acoustic collage music in relation to other acoustic collage works; and musical montages addressing the works of Charles Ives, Lucciano Berio, George Rochberg, and DJ Orange. The last part of this paper discusses the compositional process used in the works Tempered Confetti and Venni, Viddi, – and how all issues of composing acoustic collage music are addressed therein.
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Kean, Richard David Valentine. "The resonant room." Thesis, The University of Sydney, 2014. http://hdl.handle.net/2123/12864.

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This thesis looks at aural string installation as a medium and uses it to implement research within an Australian context. The title of this thesis, The Resonant Room, implies an intertextual strategy in developing this research that is situated within the ethos of aural string installation. Aural string installation as a medium is especially particular to several artists who live and work in Australia and the Netherlands, respectively. While this thesis does explore the work of all known aural string artists, its concern follows this into an intertextual account of the main themes inherent to aural string installation that are then applied to the specific context of Sydney, Australia. This strategy is undertaken through research that also entails making art with a reflective and speculative practice within the context in which it is made. This thesis then looks at strategies of experiential participation with aural string installation as a speculative critical and observational practice that concerns itself with both human artifice and Nature within the context of Sydney as a post-Fordist post-colonial country.
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Crafton, Elizabeth B. "Preferential Strategies in Elliott Carter's String Quartet No. 2." Thesis, University of North Texas, 1999. https://digital.library.unt.edu/ark:/67531/metadc278805/.

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For the purposes of expressive intent, Carter developed compositional strategies that possess qualities congruent with the musical language in his Second Quartet (1959). He employed strategies including tempo modulation, triple groupings, and large-scale ratios to assemble the musical discourse and to guide the listener's perception of large-scale continuity. I label these devices collectively as "preferential strategies" because it is Carter who selects certain pre-compositional ideas that organize musical material and demarcate structural locations. Tempo modulations that organize dual meters and triple groupings that interact in transitional and transformational ways demonstrate his concern with controlling the overall time continuity through local level organization. Large-scale ratio relations between nine interlocking sections of this four movement work illustrate how Carter employs a local strategy that projects a large-scale structure. Recognizing that Carter's ultimate compositional goal prioritizes temporal processes, these proposed preferred strategies articulate a convergence of musical elements.
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HANSSON, PER. "Braided Body, Strings That Move." Thesis, Högskolan i Borås, Institutionen Textilhögskolan, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-18104.

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The perception of the expression of traditional handcrafts needs to be challenged. Therefore his bachelor degree work aims to develop new expressions in contemporary men`s wear through experimentations with tubular braiding. This works aims to utilize and express a progressive approach of the technique in terms of materials and method with the desire to create a contemporary expression when a handcraft method is utilized in fashion Starting to explore the handcraft technique braiding the tubular braiding technique was found. While the technique itself is similar in expression and properties to flat braiding the tubular braiding opens up for other possibilities for garment construction. Using the tubular braid as a starting point, the aim is to explore new ways of constructing contemporary menswear garments with the technique itself as well to construct new materials and find to a new expressions. The work also deals with the gap between the technique flat braiding, tubular braiding, construction and materials with different properties altering the initial expression of the technique. By experimenting with unconventional materials and scale for such an handcraft technique as braiding the expression and the traditional view of braiding and its construction and use will be altered and questioned - discovering that the tubular braid has possibilities to construct or sculpt garments on the body in a seamless manner. Hopefully machine-engineers of the future can invent new and progressive braiding processes to create fabrics for commercial application in fashion and also understand the potential of the tubular braiding method formed by the examples here.

Program: Modedesignutbildningen

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Park, Soonhee. "Music for String Orchestra." Thesis, University of North Texas, 1988. https://digital.library.unt.edu/ark:/67531/metadc1038813/.

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Music for String Orchestra is a work of approximately sixteen minutes duration for chamber orchestra. The work is scored for eight first violins, six second violins, four violas, four to six cellos and two to four double basses. The work is in three movements. Movement I is in a large three-part form, movement II a simple three-part form and the last movement is in a large three-part form. The first and last movements are unified by several aspects, while the second movement employs material that is independent of the first and last movements. The main difference between the three movements is that the first and last movements are based on a western music idiom and the second movement is rooted in a Korean music idiom.
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Books on the topic "String in art"

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Philipsz, Susan. Susan Philipsz: The missing string. Düsseldorf: Kunstsammlung Nordrhein-Westfalen, 2014.

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Vera, Frenkel, Miller Earl 1963-, and Agnes Etherington Art Centre, eds. Vera Frenkel's String games. Kingston, Ont: Agnes Etherington Art Centre, Queen's University, 2011.

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author, Albert Tony, Allas Tess author, McKenzie Robyn author, Bell Richard 1953 author, Ah Kee, Vernon, 1967-, author, Robson Megan author, Noongar Doll Makers, Yarrenyty-Arltere Artists, Tjanpi Desert Weavers, and Museum of Contemporary Art (Sydney, N.S.W.), eds. String theory: Focus on contemporary Australian art. Sydney, N.S.W: Museum of Contemporary Art Australia, 2013.

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1935-, Lindsay Thomas, ed. The art and science of string performance. Sherman Oaks, CA: Alfred Pub. Co., 1986.

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Auther, Elissa. String, felt, thread: The hierarchy of art and craft in American art. Minneapolis: University of Minnesota Press, 2009.

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Auther, Elissa. String, felt, thread: The hierarchy of art and craft in American art. Minneapolis: University of Minnesota Press, 2009.

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Diana, Young, Object, Australian Centre for Craft and Design, and Australian National University. Centre for Cross-cultural Research., eds. Art on a string: Aboriginal threaded objects from the Central Desert and Arnhem Land. [Sydney]: Object-Australian Centre for Craft and Design, 2001.

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Lootz, Eva. Nudos: Eva Lootz. Madrid: Círculo de Bellas Artes, 2012.

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1990-, Mann Elissa, ed. Cool string art: Creative activities that make math & science fun for kids! Minneapolis, Minnesota: ABDO Publishing Company, 2014.

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Mutanabbī, Abū al-Ṭayyib Aḥmad ibn al-Ḥusayn, 915 or 916-965, poet, Day, Mike, book artist, printer, Al-Mutanabbi Street Coalition, Long Day Press, and Al-Mutanabbi Street Starts Here Artists' Books Collection (Columbia University. Rare Book and Manuscript Library), eds. Thirty-three beads on a string: A poem. Sunnyvale, California: Long Day Press, 2013.

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Book chapters on the topic "String in art"

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Erfle, Stephen. "String Art Basics." In Electronic String Art, 41–45. Boca Raton: A K Peters/CRC Press, 2024. http://dx.doi.org/10.1201/9781003402633-5.

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Erfle, Stephen. "Levels of Subdivision Points." In Electronic String Art, 75–81. Boca Raton: A K Peters/CRC Press, 2024. http://dx.doi.org/10.1201/9781003402633-9.

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Erfle, Stephen. "Centered-Point Flowers." In Electronic String Art, 197–210. Boca Raton: A K Peters/CRC Press, 2024. http://dx.doi.org/10.1201/9781003402633-18.

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Erfle, Stephen. "Polygons and Stars." In Electronic String Art, 13–38. Boca Raton: A K Peters/CRC Press, 2024. http://dx.doi.org/10.1201/9781003402633-3.

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Erfle, Stephen. "Suggestions for Mathematics Teachers." In Electronic String Art, 317–25. Boca Raton: A K Peters/CRC Press, 2024. http://dx.doi.org/10.1201/9781003402633-30.

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Erfle, Stephen. "Busting Out of Our Polygonal Constraint." In Electronic String Art, 248–58. Boca Raton: A K Peters/CRC Press, 2024. http://dx.doi.org/10.1201/9781003402633-22.

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Erfle, Stephen. "Basic Properties of Numbers." In Electronic String Art, 279–87. Boca Raton: A K Peters/CRC Press, 2024. http://dx.doi.org/10.1201/9781003402633-25.

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Erfle, Stephen. "Glossary of Commonly Used Terms and Abbreviations and Index." In Electronic String Art, 331–34. Boca Raton: A K Peters/CRC Press, 2024. http://dx.doi.org/10.1201/9781003402633-32.

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Erfle, Stephen. "Shape-Shifting Polygons." In Electronic String Art, 82–91. Boca Raton: A K Peters/CRC Press, 2024. http://dx.doi.org/10.1201/9781003402633-10.

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Erfle, Stephen. "60-Second Images." In Electronic String Art, 175–81. Boca Raton: A K Peters/CRC Press, 2024. http://dx.doi.org/10.1201/9781003402633-15.

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Conference papers on the topic "String in art"

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Zaharova, Anna. "Методика обучения учащихся технике string-art." In Научно-концептуальные основы развития технологического образования молодежи. Киров: Межрегиональный центр инновационных технологий в образовании, 2021. http://dx.doi.org/10.52376/978-5-907419-53-7_27.

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Amezaga, Federico, Joseph R. Rials, and Karsten Heidecke. "Landing String Slip System: State-of-the-Art Design to Minimise Pipe Crushing Problems." In SPE Asia Pacific Oil & Gas Conference and Exhibition. Society of Petroleum Engineers, 2014. http://dx.doi.org/10.2118/171408-ms.

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Stayer, Aaron, Mirjam Zwanenburg, Nicolas Scuadroni, Andrew S. Zheng, Zhanke Liu, and Rex Burgos. "State-of-the-Art Portable Measurement and Defect Detection Technology for Coiled-Tubing String." In SPE/ICoTA Coiled Tubing & Well Intervention Conference & Exhibition. Society of Petroleum Engineers, 2013. http://dx.doi.org/10.2118/163945-ms.

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Jiang, Jiang. "Application of String Music Source in Musical Instrument Digital Interface Production." In Proceedings of the 3rd International Conference on Art Studies: Science, Experience, Education (ICASSEE 2019). Paris, France: Atlantis Press, 2019. http://dx.doi.org/10.2991/icassee-19.2019.102.

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Amadini, Roberto, and Peter J. Stuckey. "A Regular Matching Constraint for String Variables." In Thirty-Second International Joint Conference on Artificial Intelligence {IJCAI-23}. California: International Joint Conferences on Artificial Intelligence Organization, 2023. http://dx.doi.org/10.24963/ijcai.2023/207.

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Using a regular language as a pattern for string matching is nowadays a common -and sometimes unsafe- operation, provided as a built-in feature by most programming languages. A proper constraint solver over string variables should support most of the operations over regular expressions and related constructs. However, state-of-the-art string solvers natively support only the membership relation of a string variable to a regular language. Here we take a step forward by defining a specialised propagator for the match operation, returning the leftmost position where a pattern can match a given string. Empirical evidences show the effectiveness of our approach, implemented within the constraint programming framework, and tested against state-of-the-art string solvers.
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Campbell, Scott, Ricardo Bueno, Sinasi Eren, and Malik Faisal Abdullah. "Salt Drilling: The State of the Art." In International Petroleum Technology Conference. IPTC, 2021. http://dx.doi.org/10.2523/iptc-21165-ms.

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Abstract Drilling though salt is not a new challenge in the petroleum industry, with successful exploration and appraisal wells in salt environments paving the way for complex field developments. A detailed summary of how these advancements have subsequently evolved into the technology and methods being used today is presented. The numerous challenges, and the resulting solutions, of drilling in salt environments are well documented; a comprehensive review of the relevant published industry literature has been conducted. Additionally, workshops with several major service vendors have been held to ascertain the current status of research and new product development. These two areas form the foundation of this work and have been weaved together and presented to establish what is the state of the art in salt drilling. Since the first salt wells were drilled, the drilling industry has changed considerably. Significant advancements in salt drilling technologies and methods have been made in areas such as: best drilling practices, salt formation geomechanics, salt formation geochemistry, drilling fluids, well cementing, directional drilling, drill string and drill bit design. These advancements have all been clearly delineated in a chronology of continuous improvement, compounded by the considerable weight of industry experience and lessons learned which has in turn led to optimisation, and increased efficiency, of salt drilling operations. Today, salt drilling is prevalent in areas such as the Gulf of Mexico, deep-water offshore Brazil, and deep-water West Africa, where the boundaries are continually pushed due to the perseverance of both petroleum operating companies and service vendors. The existing body of literature on salt wells is large and covers many disciplines of the upstream business, from wildcat exploration through to production. However, this focus is solely on drilling, combining and summarising many years’ worth of experience, learning, research, and development, to present what is the state of the art in salt drilling.
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Gundersen, Gerhard, Rolf Hugo Kirkvik, and Christopher Hoen-Sorteberg. "Fatigue Assessment of Work-Over Risers Through Physical Testing." In ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/omae2014-23266.

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Critical sections of work over strings, with respect to integrity, are components located close to end terminations, near well heads and above drill floors, where recurring bending moments are prevalent. The lifetime of these components are strongly dependent on the stiffness in the components of the string. Connections between these components are often complex, and of a type where the stiffness is unknown, or hard to reveal based on theoretical analysis. This paper considers the feasibility of applying state-of-the-art measurement technology for testing of the physical behavior of specific connections on a landing string to be used for work over operations in harsh environmental conditions, where low fatigue life of components have proven to be a recurring problem. Behavior of joint-connections revealed through measured response from physical testing serve as input for the global finite element (FE) analysis, where accumulated fatigue damage for each sea state is calculated based on site specific met-ocean data. The present work was carried out in advance of an operation on the Norwegian shelf, where a four-point bending test of the actual landing string to be used during the offshore campaign were performed on a section containing two critical couplings, in order to reveal the actual stiffness of the connections. The test string was subject to variable internal pressure, axial tension and bending loads, representative for the applicable work-over riser operational loads. The performance of the system was monitored through strain, displacement and force sensors, in order to relate applied loads to structural response. The results from these tests where later recreated from local FE analysis, where non linear springs was implemented and modified to fit the experimental results at the connections of interest. These springs was later input to the global fatigue analysis, where the complete system, including marine riser and inner work over string, was implemented in one model. Results from the fatigue assessment where used to determine the operational criteria for the work over operations.
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Ilie cristian, Dorobat, Octavian Rinciog, George cristian Muraru, and Vlad Posea. "IMPROVING THE QUALITY OF LINKED DATA USING STRING SUGGESTIONS." In eLSE 2020. University Publishing House, 2020. http://dx.doi.org/10.12753/2066-026x-20-133.

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The Semantic Web standardization and their growing usage in professional communities, both governmental and non-governmental, have naturally driven for accelerating the growth of published data volume in the virtual space by 422 published datasets in 2011 to 9,960 until 2019, totaling of 192,230,648 triples from various areas as medicine, education, art, history, technology, public administration etc. This trend of increasing of the semantic datasets published in the virtual space, leads to the emergence of a new challenge: ensuring the data quality; a first step in this direction being made by Tim Berners-Lee in 2010, when he defined a set of criteria that data scientists are encouraged to use it for ensuring a highest quality level of datasets. However, an important shape has not been mentioned: data accuracy, a feature not strictly specific to semantic data but which is applied to any type of data representation. The paper starts with a brief presentation of the most important metrics used to determine the level of data quality, along with a brief introduction of the most used string similarity algorithms. After that, the paper presents a new feature for an existing open data integration tool, called Karma, that allows users, such as data analysts and scientists, to improve their time management plan by reducing the time needed to clean their data. This feature has been implemented as a string suggestion for miswritten strings by using the presented string similarity metrics, keeping, at the same time, the framework design and the framework workflow too.
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Daghmouni, Hamdi Bouali, Said Ahmed Al-Shanti, Sergei Vorozhikhin, Pervaiz Iqbal, Sushant Dutta, and Mostafa Ismail. "Quantitative Multi-Barrier Evaluation Through Dual Completion Using Time-Domain Electromagnetic Measurements." In ADIPEC. SPE, 2022. http://dx.doi.org/10.2118/211171-ms.

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Abstract An innovative electromagnetic tool is presented which utilizes transient or pulsed eddy current measurements to provide individual quantitative evaluation of downhole corrosion in up to four concentric pipes. Case studies from dual string completions are presented that compare the results from passes logged through short string (SS) and long string (LS) tubing. The novel instrument utilizes transient electromagnetics or pulse eddy current technology and contains three sensors that achieve a trade-off between high-resolution measurements of the inner barrier and high radial depth of investigation for up to five barriers. Each sensor induces coaxial outward-diffusing rings of eddy currents in multiple concentric tubulars and measures the consequent time-varying response. The full transient responses from multiple sensors are then interpreted to obtain individual tubular thickness profiles. Case studies are presented where the thickness profiles of outer barriers are obtained with the new tool. Logging was carried out in two passes; one pass was logged through SS tubing and the second pass was recorded through LS tubing. The comparisons show that the new electromagnetic instrument provides accurate corrosion evaluation while logging through tubing, even in the presence of a second tubing string. This feature of the electromagnetic tool is important for proactive well integrity management because electrochemical external corrosion, which is the primary corrosion mechanism in these wells, causes the outermost casing to fail first and then continues to penetrate inwards. Therefore, the new electromagnetic tool allows early identification of the outer tubulars with potential weak zones in the completion string without the need or cost of pulling completions for this purpose. This paper describes the advantages and limitations of state-of-the-art multi-sensor pulsed eddy current measurements for individual barrier evaluation of up to five concentric strings even in the presence of dual tubing strings. The presented case studies in dual completions support these conclusions, with additional evidence from other diagnostic tools.
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Tengesdal, Njål, Christian Holden, and Eilif Pedersen. "Component-Based Modeling and Simulation of Nonlinear Drill-String Dynamics." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-95474.

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Abstract In this paper, we present a dynamic model for a generic drill-string. The model is developed with the intention for component-based simulation with coupling to external subsystems. The performance of the drill-string is vital in terms of efficient wellbore excavation for increased hydrocarbon extraction. Drill-string vibrations limit the performance of rotary drilling; the phenomenon is well-known and still a subject of interest in academia and in industry. In this work, we have developed a nonlinear flexible drill-string model based on Lagrangian dynamics, to simulate the performance during vibrations. The model incorporates dynamics governed by lateral bending, longitudinal motion and torsional deformation. The elastic property of the string is modeled with mode shape functions representing the elastic deformation, with a finite set of modal coordinates. By developing a bond graph model from the equations of motion, we can ensure correct causality of the model towards interacting subsystems. The model is analyzed through extensive simulations in case studies, comparing the qualitative behavior of the model with state-of-the art models. The flexible drill-string model presented in this paper will aid in developing simulation case studies and parameter identification for offshore drilling operations.
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Reports on the topic "String in art"

1

Beard, Carol. Simply String Art. Ames: Iowa State University, Digital Repository, November 2015. http://dx.doi.org/10.31274/itaa_proceedings-180814-1251.

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Holden, T., R. Hosbons, and J. Root. CWI1988-Andi-21 Neutron Diffraction of Axial Residual Strains Near a Circumferential Crack. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), January 1989. http://dx.doi.org/10.55274/r0011391.

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The intent of the experiments reported here was to measure the axial residual strain at the 6:00 position of a girth-weld in the presence of a crack which had propagated a few millimeters from the inside diameter of the llnepipe. The linepipe, 914 mm diameter and average thickness 16.2 mm had been previously examined at Chalk River and the strains at the 1:30, 6:00 and 10:30 positions had been measured prior to the introduction of the crack. Large changes in the level of axial residual strain and introduction of strong through-wall strain gradients are observed on re- welding 16 mm line pipe with wet cellulose electrodes. Ahead of the crack, in the mid-wall the strains correspond to yield stresses. Compressive strains are noted behind the crack and at the outside diameter. The tensile strains at the mid-wall remain very large around the circumference beyond the crack.
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3

Berge, Lars Ivar Oppedal, Kjetil Bjorvatn, Simon Galle, Edward Miguel, Daniel Posner, Bertil Tungodden, and Kelly Zhang. How Strong are Ethnic Preferences? Cambridge, MA: National Bureau of Economic Research, November 2015. http://dx.doi.org/10.3386/w21715.

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Powers, Heath Hamilton. TRacking Aerosol Convection Interations ExpeRiment (TRACER): Site Selection for the ARM TRACER Campaign. Office of Scientific and Technical Information (OSTI), April 2020. http://dx.doi.org/10.2172/1615654.

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Bennett, David P., and Albert Stebbins. ARC MINUTE GRAVITATIONAL LENSES AND COSMIC STRINGS. Office of Scientific and Technical Information (OSTI), June 1986. http://dx.doi.org/10.2172/1448034.

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Ratigan. L52293 Brine String Integrity Survey and Model Evaluation. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), January 2009. http://dx.doi.org/10.55274/r0010206.

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Brine strings are essential components of both natural gas and liquid hydrocarbon storage caverns. Both the natural gas and liquid hydrocarbon storage industries are well aware that a limit exists for the fluid velocity in the injection tubulars in their storage caverns. If the brine injection or brine withdrawal velocity is gradually increased, eventually, the hanging tubular will experience flow-induced vibration, resulting in the potential for the hanging tubulars to bend and/or break. Additionally, in both types of hydrocarbon storage, salt falls can impact the brine string integrity.Result: The magnitude of the velocity limit for flow-induced vibration of the hanging tubulars in salt caverns is not known. In the absence of a clearly defined method for determining the maximum allowable fluid velocities in the hanging tubulars, much of industry has attempted to adopt a conservative maximum flow velocity based on "industry experience". Sometimes this works and sometimes it does not. The objective of this project is to better define the causes of brine string failure and failure mitigation technologies. The project (1) compiled case histories of successful brine string installations as well as brine string failures in solution mining, liquid hydrocarbon storage, and gas cavern dewatering; (2) evaluated case histories with models (proposed in the literature) for brine strings that have not failed as well as brine strings that have experienced failure; and (3) developed recommendations for maximizing brine string integrity.
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Meyer and Carson. PR-415-124508-R01 Strain-Based Design and Assessment State-of-Art Review. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), November 2012. http://dx.doi.org/10.55274/r0010796.

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This report provides an overview and introduction to the use of strain-based design and assessment (SBDA) approaches to ensure mechanical integrity for pipelines that may be (design focus) or have been (operational focus) subjected to significant ground deformation. Appropriately designed pipelines subjected to significant ground deformation can accommodate longitudinal bending loads that induce tension and/or compression loads well beyond yield without impacting pressure containment. Strain-based procedures for evaluating and ensuring pipeline integrity for such potential pipeline hazards are being safely used today for both offshore and onshore pipelines. The fundamental concepts and structure of the strain-based design (SBD) approach are well-established, but not widely known across industry or consistently addressed by regulatory and standards bodies. This report seeks to outline the current state-of-art for SBDA, including how it works in tandem with conventional stress-based design. The goal is to advance the understanding of SBDA within the PRCI community and to identify future work that could be conducted within industry to facilitate the appropriate use of SBDA to meet industry�s goal of ensuring pipeline integrity.
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Barradas, Ricardo. Why are (financialised) workers becoming more resigned and conformist and less claimants? Empirical evidence for Portugal. DINÂMIA'CET-Iscte, 2023. http://dx.doi.org/10.15847/dinamiacet-iul.wp.2023.03.

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The deregulation and flexibilisation of labour relations has been on the active neoliberal agenda of policymakers all over the world, including in Portugal. Against this backdrop, labour conditions have been worsening since the 1970s and 1980s, and workers have progressively lost some labour rights, which is noticeable in stagnant (or falling) wages, the rise of personal income inequalities, the proliferation of atypical work, the increase of precariousness, the surge of emotional abuses in the workplace, the deterioration of work–life balance and the spread of informal work. Nonetheless, workers have evidenced higher resignation and conformism and lesser claimant behaviour in order to demand higher wages and better labour conditions, which is visible in the strong reduction in strike activity in the last four decades. Our argument asserts that workers’ financialisation and indebtedness levels restrain their demands for higher wages and better labour conditions due to the fear of decreasing their income and losing their jobs and the consequent risks of default. This paper aims to assess the relationship between workers’ financialisation and indebtedness levels and their strike activity by performing a time-series econometric analysis focused on Portugal during the period of 1979 to 2021. We conclude that workers’ financialisation and indebtedness levels have a negative effect on strike activity in Portugal, both in the short term and in the long term, especially on strike volume and strike duration. We also conclude that workers’ financialisation and indebtedness levels have been one of the main drivers behind the decline of strike activity in Portugal in the last four decades.
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9

Powell, Andrew, ed. Time to Act: Latin America and the Caribbean Facing Strong Challenges. Inter-American Development Bank, 2016. http://dx.doi.org/10.18235/0000265.

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10

Paidoussis, Michael. PR-593-18700-R01 Brine String Dynamics IV Deformation-Vibration in Solution Mined Caverns. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), May 2021. http://dx.doi.org/10.55274/r0012099.

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The research described in this report is focused on the dynamics of the brine strings utilized in solution-mined caverns. In Configuration 3, fluid enters the system from the top of the brine string and exits via the annulus between the brine string and the casing. In Configuration 4 the flows are inverted. An improved analytical model for stability of the brine string in Configuration 3 has been generated, and considerably better modelling for Configuration 4 achieved. Experiments in a bench-top sized system and CFD work were pursued partly to further improve the analytical models, and partly to explain some unexpected observations from a full-scale cavern, reported by Reitze in 2019. Note: Phase IV of this research was funded jointly by the Solution Mining Research Institute (SMRI) and Pipeline Research Council International (PRCI), and SMRI has published this same report with some formatting differences.
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