Bibliografie tematiche / Memorial wall

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Letteratura scientifica selezionata sul tema "Memorial wall"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 4 febbraio 2022

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Articoli di riviste sul tema "Memorial wall"

Theriault, Kim S. "Go Away Little Girl: Gender, Race, and Controversy in the Vietnam Veterans Memorial". Prospects 29 (ottobre 2005): 595–617. http://dx.doi.org/10.1017/s0361233300001873.

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It's remarkably simple, really.Constructed in 1982, the Vietnam Veterans Memorial, generally referred to as the “Wall,” consists of two black granite wings, each almost 250 feet long, which meet at an obtuse angle that is submerged into the landscape of the National Mall, a green space between the Lincoln and Washington Memorials and some distance behind White House, in Washington, D.C. The form of the Wall, designed by Maya Ying Lin, is minimalist in nature, not only because it includes the right angles, hard edges, shiny surface, and repeated increments of Minimalism, but because even though it is a war memorial, unlike most, its only ornament and representation is the seemingly endless list of 58,226 names of American service men and women killed in Vietnam.

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Martini, Ed. "The Virtual Wall: Vietnam Veterans Memorial". Journal of American History 87, n. 3 (dicembre 2000): 987. http://dx.doi.org/10.2307/2675290.

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Kurzynski, Krysta. "Vietnam Veterans Memorial Wall of Faces". Journal of Veterans Studies 1, n. 1 (15 luglio 2016): 224. http://dx.doi.org/10.21061/jvs.44.

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Bertens, Laura M. F. "SUCCEEDING BY FAILING: THE BERNAUER STRASSE WALL MEMORIAL AS PERFORMATIVE MEMORIAL". German Life and Letters 74, n. 2 (aprile 2021): 203–23. http://dx.doi.org/10.1111/glal.12301.

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Knischewski and, Gerd, e Ulla Spittler. "Remembering the Berlin Wall: The Wall Memorial Ensemble Bernauer Strasse". German Life and Letters 59, n. 2 (aprile 2006): 280–93. http://dx.doi.org/10.1111/j.0016-8777.2006.00350.x.

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Reed, Charles Calhoun, Elma I Fonseca, Regina I Reed, Stacy Foremski e Sara L Gill. "Hospital-based organ donation memorial ceremony: a grounded theory pilot study". Journal of Hospital Administration 4, n. 3 (19 marzo 2015): 1. http://dx.doi.org/10.5430/jha.v4n3p1.

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Objective: Various types of organ donation memorials, to include tree planting, rose garden memorials, candle lighting, donor memorial wall events are conducted throughout the year primarily by organ procurement organizations (OPOs). Although the benefits of such events have not been explored there has been continued interest by hospital staff and administrators to host such events. The purpose of this grounded theory pilot study was to describe the process of healing that a hospital-based organ donation memorial ceremony creates at the individual level and organ donation awareness and advocacy at the community level.Methods: The researchers interviewed nine organ donor family members who were invited to attend a hospital-based organ donation memorial ceremony at one Level I Trauma Center located in South Texas.Results: A 4-stage social process, “makes the hole in the heart smaller”, was identified from the qualitative interview data. Participants journeyed through a four stage process to make the hole in their hearts smaller. The four stages are: choosing to attend, being able to connect, keeping the memory alive and knowing something good came from it. As participants moved between stages their meaning for attendance changed. Families shifted from personal grieving and needing support to supporting other donor families and in the process became advocates for organ donation.Conclusions: The findings from this study validate the benefits of hospital-based organ donation memorial ceremonies. Families reported these ceremonies support their decision to donate, while also providing a means of continued emotional support throughout their grief process. The memorial event provides a safe venue for organ donor families to connect and share with others who have had a similar experience, while acknowledging their loved ones gift of life. Hospital-based organ donation memorial ceremonies and the permanent memorial structure increase awareness of organ donation for the community of donor families, hospital visitors and hospital staff.

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Dimković, Danijela Miodrag. "Memorial Architecture as the Symbol of Remembrance and Memories". South East European Journal of Architecture and Design 2016 (8 giugno 2016): 1–6. http://dx.doi.org/10.3889/seejad.2016.10018.

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The aim of this study is to assess memory and remembrance in presenting important concepts that establish construction of space, architecture and memorialization of the Holocaust. Some examples of memorials as the visual arts in the evocations of the Holocaust indicate a change in the ideological image of memory and understanding approach to European heritage after the fall of the Berlin Wall. Architecturally, the memorial spaces created a system of allusions, coding of real space and new findings are part of the implementation and presentation of the architecture of memory.

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Hobbs, Rebekah. "A Place to Mourn". Digital Literature Review 1 (6 gennaio 2014): 60–67. http://dx.doi.org/10.33043/dlr.1.0.60-67.

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All memorials offer solace to those who visit, but the Vietnam Veterans Memorial is particularly suited to this cause because of certain aspects of its design. As this article demonstrates, qualities such as its black reflective surface, its gradual increase in height, and the ordering of the names work to create an emotional connection to the names on the wall, bringing them to life and creating a place for grief, and ultimately healing, to occur.

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Beaumont, Thomas E. "The Phenomenology of Redemptive Violence". Alternatives: Global, Local, Political 45, n. 4 (novembre 2020): 184–99. http://dx.doi.org/10.1177/0304375421999175.

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When we occupy the spaces of war memorials, we respond with certain bodily comportments that relay the “truth” of those killed by war violence. Through a phenomenological examination of embodied responses to two war memorials, the Vietnam Veterans Memorial Wall and the Tomb of the Unknown Soldier at Arlington National Cemetery, I argue that social institutions employ bodies as a means of legitimizing a violence that is seen as redemptive. More specifically, I demonstrate how the redemptive quality of certain types of violence is an assumption replicated in social practices where individuals have learned the particular bodily skills of discourses surrounding redemptive violence.

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Cingerová, Nina, e Irina Dulebová. "Rock Beats the Wall? On Commemorative Practices in Post-Soviet Russia". Journal of Nationalism, Memory & Language Politics 14, n. 1 (26 marzo 2020): 71–91. http://dx.doi.org/10.2478/jnmlp-2020-0001.

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AbstractThis paper focuses on the case analysis of the memorial to the victims of state terror – the Wall of Grief (Stena skorbi) – which was unveiled on the eve of the 100th anniversary of the November 7, 1917, coup d’état. Using this example, we have attempted to elaborate a structure for a more complex analysis of the memory of past regimes’ manifestation and to create a methodological base for their comparison. We have based our research on the discourse theory by the so-called Essex School, the social semiotics by Kress, and the procedures of the critical discourse analysis. The procedure that we have considered relevant consists of the following: (a) description of the social context in which the memorial was manifested as a piece of evidence; (b) semiotic analysis of the memorial artifact; (c) analysis of verbal practices, as well as written and spoken texts that “explained” the memorial; and (d) analysis of nonverbal practices, namely, rituals. On the basis of our case study, we have come to the conclusion that when carrying out a semiotic analysis and the analysis of verbal and nonverbal practices in the case of the Russian public discourse, it is especially relevant to pay attention not only to widening vs. narrowing of the chronological framework, generalization vs. concretization, and specification of the traumatic experience but also to the question of framing of the memorial. In regard to the semiotic analysis, the extent of indexicality is considered to be very important in the sense of the bodily connection with an element of the commemorated event that bestows “truthfulness” and authenticity on the memorial. We assume that particularly present-day Russia, where explicit attempts to reinterpret the history of the authoritarian communist state and attempts to instrumentalize the totalitarian period according to the vector of the current political direction may be seen, is a relevant object of this kind of research.

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Tesi sul tema "Memorial wall"

Lazarte, Juancarlos H. "The Presidential Memorial Museum". Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/33791.

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The Project involves an architectural design for a facility located at the Tidal Basin on the Mall of the Washington District of Columbia. The Presidential Memorial Museum is a proposed facility to represent the presidential institution memorial and housing the exhibits of one of the most historical institutions in the country. The historical nature of the work represents the presidents of the United States, its artifacts, their collection exhibition and preservation of the objects and its meanings on the conmemorated site of Americaâ s people.

The work attempts towards the integration of architectural theories about museum buildings, site constraints, programming and purpose to represent Americaâ s Democracy. The building itself intends to contribute the encounter of a spacial and a democratic experience.

The defined spaces and architectural geometry are organized around an urban-landscape framework with an architectural display.

The Presidential Memorial Museum is developed with a method of design that involves a personal discernment in working with contemporary architectural design and programmatic concerns to create an expectation of the presidential future learning the historical background while making efforts to achieve the articulation and compatibility required by the immediate ambiance.

Master of Architecture

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Fitzpatrick, Paul. "Objects at the wall : continuing bonds and the Vietnam War Memorial". Thesis, Cardiff Metropolitan University, 2011. http://hdl.handle.net/10369/3265.

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This thesis explores the phenomenon of objects being left at the Vietnam War Memorial, Washington D.C. Since its inception in 1982, one hundred and fifty thousand objects have been left by veterans, wives and families, as well as people not necessarily related to those named on the Wall. These objects are argued to be representative of a complex expression of loss and bereavement, both by individuals and by American society as a whole. This exploration utilises various understandings of grief and bereavement, theoretical approaches to understanding objects as gifts, and expressions of deeply set emotion through written and physical forms. It suggests that the use of these objects represents a continuous process of redefining individual relationships and that this is especially acute in relation to the Vietnam War. The work concludes by proposing one possible interpretation of the gifting of the objects; that of continuing bonds and, in turn, will aim to contribute to a broader understanding of grief that encompasses psychological, social, cultural and political landscapes.

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Rosenstock, H. F. Tzviyah. "The book and the wall : the Isaac Bashevis Singer Memorial Archive Library". Thesis, Massachusetts Institute of Technology, 1993. http://hdl.handle.net/1721.1/69729.

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Thesis (M. Arch.)--Massachusetts Institute of Technology, Dept. of Architecture, 1993.
Includes bibliographical references (p. 85-88).
The design of this library is based upon two architectural concepts: the concept of defensive architecture, which is the architectural response to perceived threat, and the concept of the building as metaphysical model of the universe, having domains of sacred and profane space. I have long been intrigued by defensive architecture, by the forms it generates in response to perceived threat. The towers, mask-like facades, and labyrinthine passageways remain intriguing long after the war is over. Castles and fortifications are the architectural manifestation of an abrupt discontinuity in the organization of space. A stark polarity is created, a partition between inside and out, ours and theirs, us and them. The stark form of a defensive structure derives enormous formal power from this conflict of opposites. Tamer, gentler forms of this concept may be found in the form of monasteries, and madrasas. These share the qualities of retreat and seclusion, but for a different purpose - to be able to concentrate better on learning, and/or prayer. Their seclusion from the outside world is not a hostile act but rather a desire to intensify their inner world of prayer and study. These building types share qualities of having walls which segregate opposing conditions, as in defensive architecture, but differ in that the thing being excluded from the protected domain are of a spiritual nature, rather than physical threats. Sacred space is a domain generated by an origin which marks a vertical break in space from the ordinary ...
by H.F. Tzviyah Rosenstock.
M.Arch.

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Sutardi. "Development of a turbulent boundary layer downstream of a transverse square groove". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0008/MQ36182.pdf.

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Wheeler, Sandra. "Anchoring time : an ethnographic study of public responses to Elizabeth Margot Wall's paintings /". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0005/MQ42459.pdf.

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Keeping, Rebecca Gertrude. "The Watchman's walk problem and its variations/". Internet access available to MUN users only. Search for this title in:, 2009.

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Brine, Douglas Michael. "Piety and purgatory : wall-mounted memorials from the southern Netherlands, c.1380-1520". Thesis, Courtauld Institute of Art (University of London), 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.429900.

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Bouquin, Paul. "The switching paths of spin transfer torque magnetic random access memories". Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPAST009.

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Dans les mémoires magnétiques à transfert de spin, l’aimantation d’une couche mince ferromagnétique est retournée sous l’effet d’un courant polarisé. Au cours de ce manuscrit est étudiée la façon dont ce retournement s’opère, appelée chemin de retournement. Après avoir posé les concepts théoriques de base nécessaires et effectué un état de l’art du chemin de retournement, je présente les résultats de nos simulations micromagnétiques. Nous avons étudié le chemin de retournement en fonction du diamètre du dispositif. Ces calculs numériques prédisent un retournement composé d’une phase cohérente suivie de la nucléation et de la propagation d’une paroi de domaine. Ce chemin de retournement est attendu pour les dispositifs the 20 à 100 nm à température ambiante, donc dans nos mesures à venir. La propagation de paroi de domaine observée dans les simulations présente de complexes oscillations de Walker qui ne sont pas expliquées par les modèles de l’état de l’art. Aussi je présente un modèle de dynamique de paroi plus complet, où la géométrie exacte du système est prise en compte. Dans cette géométrie l’élasticité de la paroi donne naissance à un nouveau champ que nous appelons champ d’étirement. Ce champ d’étirement joue un rôle capital dans la dynamique de paroi et va nous permettre de comprendre et de prédire les oscillations de Walker complexes. Nos mesures sont effectuées pour des dispositifs de mémoires magnétiques à transfert de spin dernière génération, basé sur une jonction tunnel magnétique à anisotropie perpendiculaire. Le diamètre de nos dispositifs varie entre 26 et 200 nm. Nous effectuons des mesures de magnétométrie, de résonance ferromagnétique et des mesures électriques résolues en temps de la commutation. Le chemin de retournement mesuré dans ces dernières présente les signatures d’une phase initiale cohérente suivie d’un déplacement de paroi de domaine, comme calculé dans nos simulations. Les fortes oscillations de Walker prédites par nos modèles sont observées pour des échantillons spécifiques où la couche libre présente peu de défauts, mais pas dans nos échantillons les plus standards. Ceci met en lumière l’intérêt de nos travaux analytiques dans la compréhension du retournement dans des dispositifs destinés aux applications industrielles
In spin transfer torque random access memories (STTMRAM), the magnetization of a thin ferromagnetic layer is reversed under the action of a polarized spin current. Along this manuscript we study the switching path that the STTMRAM undergo. First I present the basic theoretical concepts necessary for our forthcoming calculations. Then comes a state of the art of the switching path. The first results I present are micromagnetic simulations of the switching. We study the impact of the diameter of the device on the switching path. From these numerical calculations we predict for devices between 20 and 100 nm at room temperature a switching path composed of a coherent phased followed by a domain wall nucleation and motion. It is the switching path expected in our forthcoming measurements. The domain wall dynamics observed in the micromagnetic simulations present complex Walker oscillations that are not understood from the domain wall models of the state of the art. Therefore, I present a more complete model for the domain wall dynamics within a STTMRAM which takes into account the exact geometry of the system. In this geometry the elasticity terms act as a new effective field called the stretch field. The stretch field plays a key role in the wall dynamics and explains the complex Walker oscillations. The conditions under which these effects can be measured are also predicted by our new model. Our measurements are performed on state-of-the-art STTMRAM based on perpendicular magnetic tunnel junction. The diameter of the devices varies between 26 and 200 nm. We characterize our devices by magnetometry, ferromagnetic resonance and electrical time-resolved measurements of the switching path. The switching path in our time-resolved measurements presents the signatures of an initial coherent phase and of a domain wall motion. This is in agreement with the simulated switching path. The complex Walker oscillations predicted by our models are measured in specific devices with an ultrasoft free layer, but not in our most standard stack. This highlight the interest of our analytical models for understanding the behavior of application-oriented devices

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Gibson, Trish J. "Embedded in These Walls". VCU Scholars Compass, 2018. https://scholarscompass.vcu.edu/etd/5642.

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Embedded In These Walls uses photographic imagery, archival ephemera, and written text to examine a specific history of generational trauma through the lens of a singular family of a southern tradition to point to a larger systemic breakdown of accountability and truthfulness regarding abuse

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Gulotta, Elena. "Sviluppo di un modello ad elementi finiti per lo studio del numero di coil da utilizzare per un'embolizzazione patient-specific dell'aneurisma dell'aorta addominale a seguito di intervento EVAR". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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L’aneurisma dell’aorta addominale è una patologia molto diffusa (circa 38 casi su 100.000) che colpisce prevalentemente gli uomini sopra i 65 anni. Il trattamento terapeutico previsto in alternativa alla chirurgia a cielo aperto è la riparazione mediante tecnica mininvasiva endovascolare dell’aneurisma (EVAR), che può essere accompagnata o meno dall’embolizzazione della sacca aneurismatica, per prevenire il rischio di endoleak. Diverse sono le tecniche utilizzate per la trombizzazione; una delle più comunemente applicate prevede l’inserimento endovascolare di coil tramite catetere di rilascio. Risulta particolarmente critico stabilirne il numero ottimale da usare. Lo scopo di questa Tesi è quello di sviluppare un modello ad elementi finiti patient specific di un aneurisma dell’aorta addominale, sottoposto a EVAR, per simularne l’embolizzazione tramite coil, così da avere uno strumento per guidare il chirurgo nella scelta del loro numero ottimale, sulla base di valutazioni legate all’anatomia specifica del paziente, al Peak Wall Stress e alla posizione che le stesse possono occupare, al fine di evitare il rischio di rottura. Lo studio è partito dalla simulazione del comportamento a memoria di forma di una singola spirale, modellata con elementi Linea, rilasciata dal catetere nel vuoto, e successivamente si è impostato il sistema completo con l’aneurisma. A quest’ultimo è stato assegnato un comportamento iperelastico isotropo ed è stato modellato con tre geometrie diverse, partendo da un semplice cilindro fino ad arrivare a quella patient specific. I risultati ottenuti sono la base per ulteriori simulazioni che consentiranno di assumere per le pareti dell’aneurisma un comportamento non più rigido e di incrementare progressivamente il numero di coil per modellarne il deployment, cosa che non è stata possibile in questa fase principalmente per i limiti dell’hardware usato (in particolare della scheda grafica), che avrebbe richiesto tempi computazionali troppo lunghi.

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Libri sul tema "Memorial wall"

Martha, Cooper. R.I.P.: Memorial wall art. New York, N.Y: Thames & Hudson, 2001.

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Scruggs, Jan C. The Wall that heals. A cura di Murphy Kim e Vietnam Veterans Memorial Fund. [Washington, D.C.]: Vietnam Veterans Memorial Fund, 1992.

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Scruggs, Jan C. The Wall that heals. A cura di Murphy Kim e Vietnam Veterans Memorial Fund. [Washington, D.C.]: Vietnam Veterans Memorial Fund, 1992.

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Bunting, Eve. The wall. New York: Clarion Books, 1990.

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Bunting, Eve. The wall. New York: Clarion Books, 1990.

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Bunting, Eve. The wall. New York: Clarion Books, 2001.

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Bunting, Eve. The wall. New York: Clarion Books, 1990.

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Hunger of the heart: Communion at the wall. Dubuque, IA: Islewest Pub., 1995.

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Lloyd, Wolf, a cura di. Facing the wall: Americans at the Vietnam Veterans Memorial. New York: Collier Books, 1986.

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Lloyd, Wolf, a cura di. Facing the wall: Americans at the Vietnam veterans memorial. New York: Macmillan, 1986.

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Capitoli di libri sul tema "Memorial wall"

Lohman, Jonathan. "A Memorial Wall in Philadelphia". In Spontaneous Shrines and the Public Memorialization of Death, 177–214. New York: Palgrave Macmillan US, 2006. http://dx.doi.org/10.1007/978-1-137-12021-2_9.

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Hubbard, Ruth, e Elijah Wald. "George Wald Memorial Talk". In Novartis Foundation Symposium 224 - Rhodopsins and Phototransduction, 5–20. Chichester, UK: John Wiley & Sons, Ltd., 2007. http://dx.doi.org/10.1002/9780470515693.ch2.

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Davis, Burgess, e Renming Song. "The 1971 Wald Memorial Lectures". In Selected Works of Donald L. Burkholder, 217–40. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-7245-3_15.

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Katriel, Tamar, e Yifat Gutman. "The Wall Must Fall: Memory Activism, Documentary Filmmaking and the Second Intifada". In Cultural Memories of Nonviolent Struggles, 205–25. London: Palgrave Macmillan UK, 2015. http://dx.doi.org/10.1057/9781137032720_11.

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Vicherat Mattar, Daniela. "Speaking Walls: Contentious Memories in Belfast’s Murals". In Street Art of Resistance, 179–200. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-63330-5_8.

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Sánchez, Rodrigo Navarrete, e Ana María López. "Scratching Behind the Walls; Graffiti and Symbolic Political Imagination at Cuartel San Carlos (Caracas, Venezuela)". In Memories from Darkness, 105–25. New York, NY: Springer New York, 2009. http://dx.doi.org/10.1007/978-1-4419-0679-3_8.

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Mainsah, Henry, e Carolina Sanchez Boe. "Tracing the Border Crossings of Forced Migrants in Paris’ 18th Arrondissement: Exploring a Photo-Walk Method". In The Politics of Public Memories of Forced Migration and Bordering in Europe, 121–38. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-30565-9_8.

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Macdonald, Charlotte. "Emily’s Dream: a Women’s Memorial Building and a History Without Walls: Citizenship and the Politics of Public Remembrance in 1930s–40s New Zealand". In Women's Rights and Human Rights, 168–83. London: Palgrave Macmillan UK, 2001. http://dx.doi.org/10.1057/9780333977644_11.

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"Epilogue Checkpoint Charlie and the Bernauer Strasse Memorial today". In Wall Memorials and Heritage, 246–51. Routledge, 2016. http://dx.doi.org/10.4324/9781315768908-10.

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"Competing for the Best Wall Memorial". In The Cold War, 266–82. De Gruyter Oldenbourg, 2017. http://dx.doi.org/10.1515/9783110496178-013.

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Atti di convegni sul tema "Memorial wall"

Matsufuru, Hideo. "SU(2) Lattice Gauge Theory with Many Flavors of Domain-Wall Fermions". In Sakata Memorial Workshop on Origin of Mass and Strong Coupling Gauge Theories. WORLD SCIENTIFIC, 2017. http://dx.doi.org/10.1142/9789813231467_0010.

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Nicotri, Stefano, Leonardo Angelini, Pietro Colangelo, Fulvia De Fazio, G. E. Bruno, Donato Creanza e E. Nappi. "Phenomenology of the Holographic Soft-Wall Model of QCD with “Reversed” Dilaton". In QCD@WORK 2010: International Workshop on Quantum Chromodynamics: Theory and Experiment Beppe Nardulli Memorial Workshop. AIP, 2010. http://dx.doi.org/10.1063/1.3536578.

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Cosham, Andrew, David G. Jones, Keith Armstrong, Daniel Allason e Julian Barnett. "Analysis of Two Dense Phase Carbon Dioxide Full-Scale Fracture Propagation Tests". In 2014 10th International Pipeline Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/ipc2014-33080.

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Two full-scale fracture propagation tests have been conducted using dense phase carbon dioxide (CO2)-rich mixtures at the Spadeadam Test Site, United Kingdom (UK). The tests were conducted on behalf of National Grid Carbon, UK, as part of the COOLTRANS research programme. The semi-empirical Two Curve Model, developed by the Battelle Memorial Institute in the 1970s, is widely used to set the (pipe body) toughness requirements for pipelines transporting lean and rich natural gas. However, it has not been validated for applications involving dense phase CO2 or CO2-rich mixtures. One significant difference between the decompression behaviour of dense phase CO2 and a lean or rich gas is the very long plateau in the decompression curve. The objective of the two tests was to determine the level of ‘impurities’ that could be transported by National Grid Carbon in a 914.0 mm outside diameter, 25.4 mm wall thickness, Grade L450 pipeline, with arrest at an upper shelf Charpy V-notch impact energy (toughness) of 250 J. The level of impurities that can be transported is dependent on the saturation pressure of the mixture. Therefore, the first test was conducted at a predicted saturation pressure of 80.5 barg and the second test was conducted at a predicted saturation pressure of 73.4 barg. A running ductile fracture was successfully initiated in the initiation pipe and arrested in the test section in both of the full-scale tests. The main experimental data, including the layout of the test sections, and the decompression and timing wire data, are summarised and discussed. The results of the two full-scale fracture propagation tests demonstrate that the Two Curve Model is not (currently) applicable to liquid or dense phase CO2 or CO2-rich mixtures.

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Rudland, D., P. Scott, R. Olson e A. Cox. "Complex Crack Stability in Dissimilar Metal Welds: Background and Test Plan". In ASME 2011 Pressure Vessels and Piping Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/pvp2011-57535.

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Typically in flaw evaluation procedures, idealized flaw shapes are assumed for both subcritical crack growth and critical crack stability analyses. Past NRC-sponsored research have developed estimation schemes for predicting the load-carrying capacity of idealized flaws in nuclear grade piping and similar metal welds at the operating conditions of nuclear power reactors. However, recent analyses have shown that growth of primary water stress corrosion cracks (PWSCC) in dissimilar metal (DM) welds is not ideal; in fact, very unusual complex crack shapes may form, i.e., a very long surface crack that has a finite length through-wall crack in the same plane. Even though some experimental data on base metal cracks exist to demonstrate that complex shaped cracks in high toughness materials fail under limit load conditions, other experiments demonstrate that the tearing resistance is significantly reduced. At this point, no experimental data exists for complex cracks in DM welds. In addition, it is unclear whether the idealized estimation schemes developed can be used to predict the load carrying capacity of these complex-shaped flaws, even though they have been used in past analyses by the nuclear industry. Finally, it is unclear what material strength data should be used to assess the stability of a crack in a DM weld. The NRC Office of Nuclear Regulatory Research (RES), with their contractor Battelle Memorial Institute, has begun an experimental program to confirm the stability behavior of these complex shaped flaws in DM welds. A combination of thirteen full-scale pipe experiments and a variety of laboratory experiments are planned. This paper will summarize the past base metal complex-cracked pipe experiments, and the current idealized flaw load carrying capacity estimation schemes. In addition, the DM weld complex cracked pipe experimental test matrix will be presented. Finally, plans for using these results to confirm the applicability of idealized flaw stability procedures are discussed.

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Chee, Yeow Meng, Alexander Vardy, Van Khu Vu e Eitan Yaakobi. "Coding for Transverse-Reads in Domain Wall Memories". In 2021 IEEE International Symposium on Information Theory (ISIT). IEEE, 2021. http://dx.doi.org/10.1109/isit45174.2021.9518271.

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Rudland, D., R. Lukes, P. Scott, R. Olson, A. Cox e D. J. Shim. "Dissimilar Metal Weld Pipe Fracture Testing: Analysis of Results and Their Implications". In ASME 2012 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/pvp2012-78140.

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Typically in flaw evaluation procedures, idealized crack shapes are assumed for both subcritical and critical crack analyses. Past NRC-sponsored research have developed estimation schemes for predicting the load-carrying capacity of idealized cracks in nuclear grade piping and similar metal welds at the operating conditions of nuclear power reactors. However, recent analyses have shown that growth of primary water stress corrosion cracks (PWSCC) in dissimilar metal (DM) welds is not ideal; in fact, very unusual complex crack shapes may form, i.e., a very long surface crack that has a finite length through-wall crack in the same plane. Even though some experimental data on base metals exists to demonstrate that complex shaped cracks in high toughness materials fail under limit load conditions, other experiments demonstrate that the tearing resistance is significantly reduced. At this point, no experimental data exists for complex cracks in DM welds. In addition, it is unclear whether the idealized estimation schemes developed can be used to predict the load-carrying capacity of these complex-shaped cracks, even though they have been used in past analyses by the nuclear industry. Finally, it is unclear what material strength data should be used to assess the stability of a crack in a DM weld. The NRC Office of Nuclear Regulatory Research, with their contractor Battelle Memorial Institute, has concluded an experimental program to confirm the stability behavior of complex shaped circumferential cracks in DM welds. A combination of full-scale pipe experiments and a variety of laboratory experiments were conducted. A description of the pipe test experimental results is given in a companion paper. This paper describes the ongoing analyses of those results, and the prediction of the load-carrying capacity of the circumferential cracked pipe using a variety of J-estimation scheme procedures. Discussions include the effects of constraint, appropriate base metal material properties, effects of crack location relative to the dissimilar base metals, and the limitations of the currently available J-estimation scheme procedures. This paper concludes with plans for further development of J-estimation scheme procedures for circumferential complex cracks in DM welds.

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Cosham, Andrew, Brian N. Leis, Mures Zarèa, Fabian Orth e Valerie Linton. "Full-Scale Step-Load-Hold Tests on X65 and X70 Line Pipe Steels". In 2020 13th International Pipeline Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/ipc2020-9438.

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Abstract A time-delayed failure due to stress-activated creep (cold-creep) will occur if the applied load is held constant at a level above the threshold. The results of small and full-scale tests on line pipe steels conducted by the Battelle Memorial Institute and the British Gas Corporation in the 1960s and 70s indicated that the (empirical) threshold for a time-delayed failure was approximately 85–95% SAPF (straight-away-pressure-to-failure). The line pipe steels were Grades X52 or X60, and the full-size equivalent Charpy V-notch impact energy (where reported) did not exceed 35 J. The strength and toughness of line pipe steels has significantly increased over the decades due to developments in steel-making and processing. The question then is whether an empirical threshold based on tests on lower strength and lower toughness steels is applicable to higher strength and higher toughness steels. A Tripartite Project was established to answer this question. The Australian Pipelines and Gas Association (APGA), the European Pipeline Research Group (EPRG) and the Pipeline Research Council International (PRCI) collaborated in conducting six full-scale step-load-hold tests on higher strength and higher toughness steels. Companion papers present the other aspects of this multi-year project. The line pipe supplied for testing is summarised below. • Identifier — Dimensions and Grade — f.s.e. Charpy V-notch impact energy at 0 C • APGA [A] — 457.0 × 9.1 mm, Grade X70M, ERW — 263 J • EPRG [E] — 1016.0 × 13.6 mm, Grade X70M, SAWL — 165 J • PRCI [P] — 609.6 × 6.4 mm, Grade X65, SAWL — 160 J Six step-load-hold tests, each with four part-through-wall defects, were conducted. Test Nos. APGA 1 and 2, and Nos. EPRG 1 and 2 were conducted at Engie, France. Test Nos. PRCI 1 and 2 were conducted at EWI, USA. The full-scale tests, and associated small-scale testing, are described and discussed. A time-delayed failure due to stress-activated creep occurred in each of the step-load-hold tests. The failures occurred during a hold-period at 93.7–104.4% SAPF, after a hold of approximately 1.0–13.9 hours. The results of the six step-load-hold tests are consistent with a threshold for a time-delayed failure of approximately 90% SAPF.

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Kang, Wang, Xing Chen, Daoqian Zhu, Xichao Zhang, Yan Zhou, Keni Qiu, Youguang Zhang e Weisheng Zhao. "A Comparative Study on Racetrack Memories: Domain Wall vs. Skyrmion". In 2018 IEEE 7th Non-Volatile Memory Systems and Applications Symposium (NVMSA). IEEE, 2018. http://dx.doi.org/10.1109/nvmsa.2018.00009.

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Fredette, Lee, e F. W. Brust. "Effect of Weld Induced Residual Stresses on Pipe Crack Opening Areas and Implications on Leak-Before-Break Considerations". In ASME 2002 Pressure Vessels and Piping Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/pvp2002-1109.

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The USNRC is anticipating updating their leak-before-break (LBB) procedures. One of the technical areas of concern in the existing procedures is the prediction of the crack-opening-displacements (COD) needed for estimating the postulated leakage crack size for a prescribed leakage detection capability. If cracks develop in the welded area of a pipe, as is often the case, residual stresses in the weld may cause the crack to be forced closed. Earlier studies have shown that pipe welding produces high residual stresses with a sharp stress gradient ranging from tension to compression through the thickness of the welded area of the pipe. The current guidelines are inadequate to predict crack size based on leak rates for cracks in welded areas of pipes. The current guidelines rely on the calculation of the crack-opening-displacement as related to pipe loading. Values from the current guidelines are used to predict a crack’s cross sectional area and, in turn, to determine the severity of an existing crack by monitoring in-service leakage rates. The equations currently in use are applicable to service loaded pipe material only. Residual stresses caused by cold work, welding, etc. are neglected. This study uses two and three dimensional finite element models and weld residual stress calculation software created at Battelle Memorial Institute to develop correction factors to be used with the traditional design equations. The correction factors will compensate for the effects of welding induced residual stresses on cracks in pipe welds. This study concentrates on type 316 stainless steel material properties, but the COD corrections should be equally applicable to all stainless steels, and also can be used for ferritic steels. A test matrix of pipe radius, thickness, and crack size was used to develop the equation correction factors. Pipe wall thicknesses (t) of 7.5 mm (0.295 in.), 15 mm (0.590 in.), 22.5 mm (0.886 in.), and 30 mm (1.181 in.) were studied in pipes with mean radius to thickness ratios of 5, 10, and 20. Cracks with half-lengths in radians of π/16, π/8, π/4, and π/2 were introduced in these virtual pipes. The matrix of results was used to produce correction factors for crack opening displacement equations applicable to a broad range of pipe sizes.

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Ollivier, Sebastien, Donald Kline, Roxy Kawsher, Rami Melhem, Sanjukta Banja e Alex K. Jones. "Leveraging Transverse Reads to Correct Alignment Faults in Domain Wall Memories". In 2019 49th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN). IEEE, 2019. http://dx.doi.org/10.1109/dsn.2019.00047.

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Rapporti di organizzazioni sul tema "Memorial wall"

Walk-through survey report: control technology for negative pressure rooms at Wishard Memorial Hospital, Indianapolis, Indiana. U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, luglio 1994. http://dx.doi.org/10.26616/nioshectb21214a.

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