Bibliografias temáticas / Bard Hall

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Literatura científica selecionada sobre o tema "Bard Hall"

Autor: Grafiati
Publicado: 29 de julho de 2024
Última modificação: 31 de julho de 2024

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Artigos de revistas sobre o assunto "Bard Hall"

1

Ghanim, Fawziya Mousa. "Seanchan 's Quest Restoring of the Poet's Right in Yeasts' Play The King's Threshold". European Journal of Language and Literature 7, n.º 2 (1 de outubro de 2021): 20. http://dx.doi.org/10.26417/453wmb82a.

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William Butler Yeats (1865-1939), the prominent Irish poet and dramatist was one of the foremost figures of twentieth-century literature. He was a driving force behind the Irish Revival, and together with lady Gregory and Edward Martyn established the Abby Theatre, and served as its chief playwright during its early years. He was awarded the Noble Prize in literature for his always inspired poetry which in a highly artistic form gave expression to the spirit of a whole nation. The paper aims at analyzing the poet's quest for social freedom and poet's right in the state. The King's Threshold was first performed by the Irish National Theatre Society at the Molesworth Hall, in Dublin on 7 October, 1903. It is founded upon a Midieval-Irish story of the demands of the poets at the court of King Guaire at Gort, Co. Galway; it was also influenced by Edwin Ellis's play Sancan the bard (1905) which was published ten years earlier, by Edwin Ellis.
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Stachura-Lupa, Renata. "Galicyjska recepcja Chopina. W kręgu Marceliny Czartoryskiej i Stanisława Tarnowskiego". Poznańskie Studia Polonistyczne. Seria Literacka, n.º 41 (29 de dezembro de 2021): 125–49. http://dx.doi.org/10.14746/pspsl.2021.41.8.

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The paper is dedicated to the role of princess Marcelina Czartoryska, a friend and student of Chopin, as an initiator of the research into his life and work, and to Stanisław Tarnowski’s essay about the composer. On 19 March 1871, in the hall of the Saski Hotel, a public lecture on Chopin was presented by Tarnowski, accompanied by Czartoryska’s magnificent performance. The income from this event was donated to Towarzystwo Wzajemnej Pomocy (mutual help association) for the support of the poor students of the Jagiellonian University. Czartoryska accompanied Tarnowski, illustrating his speech by playing the piano. Tarnowski published his work twice: in 1871 and 1892. He set the life and work of Chopin in the context of the period. Based on the sources, he reconstructed the spiritual biography of the artist, his creative personality both in terms of the psychological and the social aspects. He saw in Chopin “the fourth greatest poet of the divided Poland,” the fourth Bard.
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See, Truman. "Hear My Desire: Rachmaninov’s Orphic Voice and Musicology’s Trouble with Eurydice". 19th-Century Music 44, n.º 3 (2021): 187–216. http://dx.doi.org/10.1525/ncm.2021.44.3.187.

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Stigmatized as kitsch, the music of Rachmaninov has largely been neglected by scholars. A reassessment has been made possible by recent historiography on late imperial Russia documenting the intelligentsia’s search for a messianic musician-bard, a role that several of Rachmaninov’s pre-revolutionary works take up, but not in the terms expected of them. Heard in relation to the Orpheus myth often invoked at the time, to the contemporaneous prevalence of psychoanalysis, and to the formal affinities between early modernist orchestral music and the unconscious, the music both assumes unforeseen significance and offers the possibility of a counterstatement to current musicological concerns with embodiment and presence. Amid these debates, Rachmaninov’s symphonic poem, Isle of the Dead (1909), emerges as an unexpectedly subversive work that sounds the futility of fin-de-siècle Russian utopianism while giving voice to an alternative, anti-metaphysical ethics. Meanwhile, the music points to a clandestine violence governing much of musicology’s ongoing fascination with the “drastic.” The resulting critique leads to the proposal of a reparative musicology capable of giving a sympathetic account of the cultural work of public mourning that Rachmaninov’s music performs in the concert hall today.
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DAR-EL, Dr EZEY M. "A review of: ”Product Management: Engineering, Technology and Implementation”. By A. SHTUB. J. F. BARD, and S. GLOBERSON (Prentice Hall, 1994) [Pp. xxii + 6341 Price: £19.61." International Journal of Production Research 34, n.º 1 (janeiro de 1996): 298. http://dx.doi.org/10.1080/00207549608928087.

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Kim, Sooyoung. "A review of: “Project Management - Engineering, Technology, and Implementation” Avraham shtub, Jonathan F. Bard and Shlomo Glosberson Prentice Hall, Inc., 1995, 634 pp., ISBN 0-13-556458-1". IIE Transactions 28, n.º 6 (junho de 1996): 526–27. http://dx.doi.org/10.1080/07408179608966303.

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Shen, Shun-Qing. "Half quantized Hall effect". Coshare Science 2 (29 de fevereiro de 2024): 1–42. http://dx.doi.org/10.61109/cs.202402.128.

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Here we report a half-quantized Hall effect in a metal or semimetal. The Hall conductance is half quantized and the longitudinal conductance is nonzero. Consequently, the Hall resistivity is not quantized. The half quantization occurs when the parity symmetry or time reversal symmetry emerges near the Fermi surface or Fermi level while the symmetry is broken in the whole system. A recent experiment reports the observation of the half-quantized Hall conductance in a magnetically-doped topological insulator. We discover that a single gapless Dirac cone exists in the band structure and has half-quantized conductance when the Fermi level intercepts the gapless surface states in which the parity symmetry is invariant. As there are no localized chiral edge states in the gapless and metallic system, we find that the chiral edge current is carried by the gapless surface states. The current density peaks at the edge and decays in a power law rather than the exponential decay as in the conventional quantum anomalous Hall effect. The half quantized Hall conductance is a signature of parity anomaly in a single gapless Dirac cone on a lattice. We term the nontrivial quantum phase as “parity anomalous semimetal”. The work opens the door to exploring novel topological states of matter with fractional topological invariants.
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Shakhova, Anastasia. "Das internationale Autorenliedfestival „Lehesaju Muusika“ in Tartu als spezifische Form der Kulturvermittlung und Analyseobjekt für Mehrsprachigkeitsforschung". Interlitteraria 26, n.º 1 (31 de agosto de 2021): 217–34. http://dx.doi.org/10.12697/il.2021.26.1.15.

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The Lehesaju Muusika International Music and Poetry Festival in Tartu as a Specific Form of Cultural Mediation and Object of Analysis for Research on Multilingualism. The paper focuses on the multilingual discourse of the Lehesaju Muusika international music and poetry festival, which takes place annually in Tartu, Estonia. Being an international cultural event organised by ethnic minorities, Lehesaju Muusika represents a unique source of empirical data for research on multilingualism. The festival attracts songwriters and performers of the so-called ‘author song’ or ‘bard song’ not only from Estonia, but also from all over the world. The key feature of this genre is the dominance of the text over the music. The spatial organisation of a concert hall represents a specific power constellation within a microsocial structure. Performing artists have the power to decide in which language they perform and address the multilingual audience, while the audience itself has an indirect effect on this decision. The artist’s dialogue with the audience represents a peculiar discursive entity within the discourse of the festival. Code-switching appears to be one of the inherent characteristics of this discursive entity. The present paper summarises some key features of international music and poetry festivals as multilingual cultural events, focusing on the discourse of the Lehesaju Muusika festival. It offers a brief analysis of the audience’s language profile based on the results of a microsociological case study carried out during the latest festival, in 2019. To illustrate the complexity of the multilingual communication during the festival, three situations of code-switching during the performance of an Estonian native speaker in front of the multilingual audience are described and analysed.
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WATTS, S. M., S. VON MOLNáR e M. JAIME. "HIGH-FIELD HALL EFFECT AND BAND STRUCTURE OF HALF-METALLIC CrO2 FILMS". International Journal of Modern Physics B 16, n.º 20n22 (30 de agosto de 2002): 3334–37. http://dx.doi.org/10.1142/s0217979202014346.

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The Hall effect of (100)- and (110)-oriented films of the half-metallic ferromagnetic oxide CrO2, fabricated by both chemical vapor deposition and high pressure, thermal decomposition methods, has been examined in large magnetic fields up to 60 T. In all cases the Hall effect exhibits a sign reversal from positive to negative with increasing field, which we take as evidence for multi-band behavior. (110) films fabricated by both methods exhibit this sign reversal at relatively low fields. The data may be fit with a simple two-band model, which indicates the existence of highly mobile holes of p-like parentage, along with a much larger number of heavy, d-like electrons. In the (100) film the sign reversal is at much higher field. The parameters obtained from the fits allow us (with help from band structure calculations) to infer the band structure near the Fermi level and how it depends on sample strain and other structural characteristics. These details will be important for understanding carrier transport through interfaces such as for spin injection or other "spintronics" applications.
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Krins, Vanessa. "Le Waux-Hall à Spa". Bulletin de la Classe des Beaux-Arts 12, n.º 7 (2001): 333–42. http://dx.doi.org/10.3406/barb.2001.20703.

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Li Xuemei, 李雪梅, 张明达 Zhang Mingda, 朱小冬 Zhu Xiaodong, 杨毅彪 Yang Yibiao, 费宏明 Fei Hongming, 曹斌照 Cao Binzhao, 刘欣 Liu Xin e 张娅敏 Zhang Yamin. "光通信波段中基于谷霍尔效应的单向波导". Acta Optica Sinica 41, n.º 19 (2021): 1913001. http://dx.doi.org/10.3788/aos202141.1913001.

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Teses / dissertações sobre o assunto "Bard Hall"

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Siddiki, Afif. "Model calculations of current and density distributions in dissipative Hall bars". Doctoral thesis, [S.l.] : [s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=980715725.

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Hallberg, Frida, e Wynja Nyberg. "Förskolans hall : Yngre barns språklärande vid påklädningssituationer". Thesis, Högskolan i Halmstad, Akademin för lärande, humaniora och samhälle, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-35071.

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Forskning om barns språklärande visar att det är i vardagssituationer som barn har stor möjlighet att utveckla sitt språk och i denna studie har syftet varit att undersöka vilka språklärandesituationer som synliggörs i kommunikationen mellan pedagoger och barn i förskolans hall. Studien utgår från följande frågeställning: På vilka sätt kommunicerar pedagoger med barn i åldern 1-3 år vid påklädningssituationer i hallen och hur kan denna kommunikation bidra till språklärande? Vi har valt detta ämne då våra eftersökningar visar att forskningen kring språklärande i förskolans hall är begränsad. Studien är genomförd på en förskola i södra Sverige och vi har använt videoinspelning som insamlingsmetod av materialet. Studien utgår från sociokulturellt perspektiv och vi har använt induktiv tematisk analys. Våra analysbegrepp är stöttning och kommunikation. Utifrån föreliggande studie drar vi slutsatsen att språklärande äger rum i vardagssituationer. Detta synliggörs i de situationer i vilka pedagoger kommunicerar med barn genom att benämna och upprepa ord och begrepp, ställa frågor till barnen samt ta tillvara på de samtal barnen initierar. Vi har observerat att stöttning, det vill säga scaffolding, förekommer när pedagogerna ställer frågor samt benämner och upprepar ord och begrepp.
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Воргуль, О. В. "Approaches Half Band Filter Realization for Means FPGA". Thesis, NURE, MC&FPGA, 2019. https://mcfpga.nure.ua/conf/2019-mcfpga/10-35598-mcfpga-2019-015.

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Воргуль, О. В. "Approaches Half Band Filter Realization for Means FPGA". Thesis, NURE, MC&FPGA, 2019. https://mcfpga.nure.ua/conf/2019-mcfpga/10-35598-mcfpga-2019-015.

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Verma, Sanjay Chandra. "Design of half-band filters to construct orthonormal wavelets". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq36090.pdf.

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Appelgren, Elin, e Emelie Nygårds. ""Utgång eller utveckling?" : -En fallstudie om vilket lärande som kan upptäckas i förskolans hall". Thesis, Uppsala universitet, Institutionen för pedagogik, didaktik och utbildningsstudier, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-335613.

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Vissa ser förskolans hall som en passage mellan inne och ute. Andra ser förskolans hall som en miljö att utvecklas i. Medan vissa ser hallen som en stressig rutinsituation som endast är en övergång till något annat. I denna studie utgår vi ifrån att hallen är en plats för lärande. Syftet med denna fallstudie är att undersöka vilka läroplansmål som stöds vid rutinsituationer i förskolans hall. Vi vill studera om barn upplever något lärande i rutinsituationer och i så fall vad för lärande. Vi frågar oss Hur upplever barn förskolans hall som lärandemiljö? samt Vilka av läroplanens mål berörs i förskolans hall? För att undersöka detta har vi valt att använda oss av intervjuer och observationer som metod. Studien utgår från det sociokulturella perspektivet som innebär att utveckling och lärande sker när människor samspelar. Studien gjordes endast på en förskola och resultatet kan därför inte appliceras på svenska förskolor generellt. Studiens intervjuer visade att flertalet barn var överens om att det i hallen går att lära sig klä av och på sig. Resultatet av studiens observationer visade att det kunde ske många olika former av lärandetillfällen utifrån läroplanens mål i förskolans hall. De ämnen som berördes var bland annat matematik, naturvetenskap, språk och motorik.
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Davies, Thom. "Half lives and bare life : an informal geography of Chernobyl". Thesis, University of Birmingham, 2015. http://etheses.bham.ac.uk//id/eprint/5962/.

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Beyond the half-lives, Exclusions Zones, and official imaginaries of nuclear risk, exists an informal geography of Chernobyl. This thesis explores what it is like to live with nuclear disaster. It reveals how people have developed informal coping tactics and local risk understandings that defy formal constructions of nuclear space, and help resist de facto state abandonment. This project involved in-depth ethnographic research with marginalised communities who live in the contaminated landscapes around the Chernobyl Exclusion Zone in Ukraine. Qualitative approaches including participant observation, photographic methods and semi-structured interviews were conducted with participants including liquidators (cleanup workers), border guards, evacuees, returnees, ‘Chernobyl widows’, farmers and many other people impacted by the disaster’s contested nuclear geography. The thesis reveals how Chernobyl’s constructed landscape is produced through a negotiated process of ‘nuclearity’ (Hecht 2012). The research posits that alongside formal spatialisations of Chernobyl – such as its ‘Exclusion Zones’ - are a spectrum of unofficial understandings of space and risk that contest this top-down and ‘strategic’ geography of nuclear disaster (de Certeau 1984). It demonstrates that these alternative nuclear understandings help people assert agency and oppose the status of post-atomic ‘bare life’ (Agamben 1998). Utilising theorisations of power and resistance offered by de Certeau (1984), the thesis uncovers the hidden geography of informality, local knowledge and place attachment that allow people to resist the ‘stealthy violence’ (Li 2009, 67) of abandonment and perform their own alternative narratives of nuclear space. This thesis contributes to discussions of Agamben within geographical discourses, and advances understandings of informality in the context of post-socialist marginalisation and landscapes of risk.
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Alhuwaymel, Tariq Fahad H. "New band-gap measurement technique for a half-metallic ferromagnet". Thesis, University of York, 2015. http://etheses.whiterose.ac.uk/10668/.

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Spintronics is a new and emerging field in nanotechnology, which has been evolving rapidly. It aims to exploit the spin degree of freedom in order to realise advanced electronic devices. With the recent improvement in the storage media devices following to the discovery of giant magnetoresistance effect, it is envisioned that the electronic devices have several advantages over the conventional electronics in respect to the storage capacity, speed and power consumption. One avenue towards next generation spintronic devices is to develop half-metallic ferromagnets (HMFs) with 100% spin polarisation (P) and Curie temperature (TC) above room temperature (RT). HMFs have unique properties, in which the majority spins have a metallic band structure, whereas the minority spins have a semiconducting band with the Fermi level (EF) lying within an energy gap. P of HMFs has been predominantly estimated using Julliere’s formula in a magnetic tunnel junction (MTJ) or measured by the Andreev reflection (AR) at low temperature. Both methods are very sensitive to the surface/interface spin polarisation. Alternative optical methods such as photoemission have also been employed. However, these methods require a complicated and expensive set-up. Therefore, it is of paramount importance to directly and easily measure the band-gap of HMFs. The main aim of this study is to develop a new technique to directly measure the band-gap (Eg) of HMFs at RT. For that, a simple experimental set-up has been designed utilising circularly-polarised infrared (IR) light to excite minority spins and measure the corresponding absorption. The validity of our technique was demonstrated by measuring Eg of polycrystalline and epitaxial full-Heusler-alloy films and single-crystal half-Heusler alloy bulk. Eg measurements have revealed relevant figures to the calculated and expected reported values. This technique allows measuring Eg of HMFs at RT for the first time. It can therefore be used to provide simple optimisation of growth conditions.
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Baudišová, Monika. "Víceúčelová sportovní hala". Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226911.

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This thesis deals with design of a multi-purpose sports hall. The aim of this work is to design a support structure with a diameter of 80.0 m at ± 0.000. Construction of a circular layout in the level of ± 0.000 of an external diameter 80.0 m. Height of the hall at the top is 20.0 m Indoors girders is solved in 36 beams which meet at the middle of the rings. Ensure the stability of bracing. Anchoring is done by pin connections located at the bottom of the strip, anchored in concrete bases through the base plate and pre-concreted anchor bolts.
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Lacroix, Olivier. "Technico-economic analysis of cylindrical cathode collector bars with copper inserts in a Hall-Héroult cell". Master's thesis, Université Laval, 2019. http://hdl.handle.net/20.500.11794/36753.

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La cathode est responsable d’environ 10 % de la chute de potentiel totale d’une cuve Hall- Héroult. Une partie significative de cette perte, sous forme d’effet Joule, provient d’un mauvais contact entre la couche de fonte et le bloc de carbone. De plus, une distribution non uniforme de la densité de courant à l’intérieur de la cuve engendre une érosion prématurée des extrémités des blocs cathodiques, limitant la durée de vie des cuves. Le présent projet vise à réduire la chute de potentiel ainsi qu’à uniformiser la densité de courant de l’assemblage cathodique par l’amélioration du contact entre la barre collectrice et le bloc de carbone. Il explore plus particulièrement l’utilisation de barres collectrices cylindriques comprenant des insertions de cuivre ne nécessitant aucune couche de fonte lors de l’opération de scellage. Différentes configurations de cathode sont explorées à l’aide d’un modèle numérique thermoélectromécanique dans le but d’en comprendre le comportement et d’évaluer leur impact sur la consommation énergétique et sur la durée de vie d’une cuve. Une analyse économique est également réalisée afin de mesurer la rentabilité des concepts. Celle-ci sert finalement à l’optimisation de la géométrie afin de maximiser les performances de nouveaux concepts. Les résultats indiquent que la chute de voltage peut être réduite et que la distribution de courant peut être uniformisée par l’amélioration de la qualité du contact entre le bloc de carbone et les barres collectrices.
The cathode, located at the bottom of a Hall-Héroult cell, is responsible for nearly 10 % of the total cell voltage drop. Poor contact between the carbon block and the cast-iron layer surrounding the collector bars increase energy losses in the form of Joule heating. In addition, a non-uniform current density distribution inside the cell results in premature erosion of the carbon block extremities, limiting the cell’s life expectancy. This project aims to reduce the voltage drop and to improve the current density uniformity in the cathode assembly by improving the contact between the collector bars and the carbon block. To do so, a new cathode design using cylindrical collector bars with copper inserts is investigated using finite element modeling. The thermal expansion during the cell start up is used to generate contact between the collector bars and the carbon block, thus not requiring any cast iron or sealing operations. Different geometry configurations are explored using a thermo-electro-mechanical model to understand its behavior and to determine their effect on energy consumption and cell life expectancy. An economic analysis is also performed to evaluate the cost effectiveness of those configurations. The geometry is finally optimized to maximize the new design’s performance. Results indicate that a significant voltage drop reduction and a more uniform current distribution can be achieved by improving the contact quality between the carbon block and the collector bars.
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Livros sobre o assunto "Bard Hall"

1

Brinkman, Shannon. Preservation Hall. Baton Rouge: Louisiana State University Press, 2011.

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Brinkman, Shannon. Preservation Hall. Baton Rouge: Louisiana State University Press, 2011.

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3

Fox, Anthony W. Upminster Hall, its barn, and estate. Rancho La Costa, Calif: A.W. Hall, 2001.

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4

Mitchell, Jon C. From Kneller Hall to Hammersmith: The band works of Gustav Holst. Hanover,Ind: Ars Ventorum, 1990.

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Mitchell, Jon C. From Kneller Hall to Hammersmith: The band works of Gustav Holst. Tutzing: Verlegt Bei Hans Schneider, 1990.

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6

Pratt, Bannatyne Lesley, e Shreffler Anne Chatoney, eds. Harvard's Paine Hall: Muscial canon & the New England barn. Cambridge, Mass: Department of Music, Harvard University, 2010.

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7

Imai, Akiko. Kyabarē, dansu hōru, 20-seiki no yoru: 20th century night spots in Japan. Tōkyō: Gurafikkusha, 2018.

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8

Shiomi, Yuki. Anomalous and Topological Hall Effects in Itinerant Magnets. Tokyo: Springer Japan, 2013.

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9

Pekin, L. B. From the bare stem: Making Dorothy Elmhirst's garden at Dartington Hall. Exeter: Devon, 1989.

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10

Rock and Roll Hall of Fame Foundation. Rock and Roll Hall of Fame 1994. [New York, N.Y.]: Rock and Roll Hall of Fame Foundation, Inc., 1994.

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Capítulos de livros sobre o assunto "Bard Hall"

1

harris, fredric j. "Half-Band Filters". In Multirate Signal Processing for Communication Systems, 219–40. 2a ed. New York: River Publishers, 2022. http://dx.doi.org/10.1201/9781003338888-8.

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von Kaenel, René, Louis Bugnion, Jacques Antille e Laure von Kaenel. "Copper Bars for the Hall-Héroult Process". In Light Metals 2016, 903–8. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-48251-4_152.

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Kaenel, René von, Louis Bugnion, Jacques Antille e Laure von Kaenel. "Copper Bars For The Hall-HÉRoult Process". In Light Metals 2016, 903–8. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781119274780.ch152.

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Lieb, Elliott H. "Flux Phase of the Half-Filled Band". In Condensed Matter Physics and Exactly Soluble Models, 79–82. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-06390-3_5.

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Seibel, Wolfgang. "Politicization of the Non-politicizable: The Collapse of the Ice Skating Rink in Bad Reichenhall on 2 January 2006". In Collapsing Structures and Public Mismanagement, 129–55. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-67818-0_5.

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AbstractAfter heavy snowfall, the skating rink of the city of Bad Reichenhall collapsed on 2 January 2006. Fifteen people, twelve children between the age of 7 and 15 and three mothers, were killed by the falling debris of the roof, 34 people were injured. Court trials came to the conclusion that the City of Bad Reichenhall, over a long period of time, had seriously neglected the maintenance of the hall despite clear indication of water ingress and related weak points in the roof structure. The Lord Mayor admitted before court to have purposefully obstructed the decision of the municipal parliament to renovate the hall since he had intended to have the hall dismantled anyway and to build a modern pastime and wellness center instead.
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Huang, Xiaohong, e Zhaohua Wang. "Novel Approach for the Design of Half-Band Filter". In Information Computing and Applications, 581–88. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-16167-4_74.

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Rahulkar, Amol D., e Raghunath S. Holambe. "Features Based on Triplet Half-Band Wavelet Filter-Banks". In SpringerBriefs in Electrical and Computer Engineering, 23–44. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-06767-4_2.

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Banerjee, Soumen, Sombuddha Chatterjee, Sampoorna Das Mazumdar, Malay Gangopadhyaya e Biswarup Rana. "Multi-slot Loaded Dual Band Compact Half-Mode SIW Triangular Antenna". In Springer Proceedings in Physics, 441–48. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-3908-9_54.

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Tochigi, Eita, Bin Miao, Shun Kondo, Naoya Shibata e Yuichi Ikuhara. "TEM Characterization of Lattice Defects Associated with Deformation and Fracture in α-Al2O3". In The Plaston Concept, 133–56. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-7715-1_7.

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AbstractAlumina (α-Al2O3) is one of the representative structural ceramics. To understand its mechanical responses, the lattice defect behavior of alumina has been investigated by transmission electron microscopy (TEM) for many years. In this report, we review our recent research progress on TEM structural analysis of lattice defects in alumina. In the first half, the core atomic structure and dissociation reaction of b = $$1/3<11\bar{2}0>$$ 1 / 3 < 11 2 ¯ 0 > , $$<1\bar{1}00>$$ < 1 1 ¯ 00 > , and $$1/3<\bar{1}101>$$ 1 / 3 < 1 ¯ 101 > dislocations formed in low-angle grain boundaries are investigated by atomic-resolution TEM observations. Based on experimental results, the slip deformation behavior associated with those dislocations is discussed. In the second half, the formation of $$1/3<11\bar{2}0>$$ 1 / 3 < 11 2 ¯ 0 > dislocations and fracture of Zr-doped ∑13 grain boundary of alumina are observed by in situ TEM nanoindentation. Furthermore, these indented samples were observed by atomic-resolution scanning TEM. The mechanisms of the deformation and fracture phenomena are discussed in detail.
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Sardone, Sergio. "Ricchezza e proprietà in una città levantina: Bari tra Cinque e Settecento". In Disuguaglianza economica nelle società preindustriali: cause ed effetti / Economic inequality in pre-industrial societies: causes and effect, 83–113. Florence: Firenze University Press, 2020. http://dx.doi.org/10.36253/978-88-5518-053-5.10.

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This work offers a descriptive and quantitative picture of the property owned by the socio-economic elite of Bari, the only one of the three present great cities of Southern Italy analysable for the Modern Age, given the exemption granted to Naples and Palermo as capitals of the kingdoms of Naples and Sicily. The analysis on the 1598 apprezzo and the 1753 catasto has allowed to identify and estimate the wealth of the wealthiest families of Bari, and to show the social composition of its main families. From this analysis it emerged also that, during this century and a half, the number of patrician families in Bari halved in favor of those that “lived nobly”, with more substantial assets to replace the patriciate, among them those of foreigners from Ferrara and Lombardy.
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Trabalhos de conferências sobre o assunto "Bard Hall"

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WATTS, S. M., S. VON MOLNÁR e M. JAIME. "HIGH-FIELD HALL EFFECT AND BAND STRUCTURE OF HALF-METALLIC CrO2 FILMS". In Physical Phenomena at High Magnetic Fields - IV. WORLD SCIENTIFIC, 2002. http://dx.doi.org/10.1142/9789812777805_0115.

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Sassine, S., Yu Krupko, J. C. Portal, J. M. Hartmann e J. Zhang. "Microwave-induced collective response in SiGe Hall bars". In PHYSICS OF SEMICONDUCTORS: 28th International Conference on the Physics of Semiconductors - ICPS 2006. AIP, 2007. http://dx.doi.org/10.1063/1.2730014.

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Ciloglu, Korhan, Peter C. Frye, Scott Almes e Sidney Shue. "Advances in Bonded Insulated Rail Joints to Improve Product Performance". In 2014 Joint Rail Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/jrc2014-3746.

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Insulated rail joints (IJs) are critical components of railroad track infrastructure. It is essential for IJs to maintain railroad track’s structural continuity while having an important role in track circuit design and implementation. The structural integrity and performance of IJs have been recognized as a key interest area by the railroads as a result of increasing average axle loads and train traffic. While there are many different designs offered by various manufacturers around the globe, the main approach utilized by heavy haul railroads in the US, Canada and many other countries has been to use adhesively bonded insulated joint bars between two rails. This approach offers the benefit of a composite assembly where the continuous bond between rails and bars offer a geometrically uninterrupted transfer of loads between rails and bars. The main components of a bonded IJ are joint bars, insulation material, adhesive, endpost, and bolts or other fasteners. This paper summarizes recent design improvements on these components. The main focus areas of the research are bar design, bar material selection, insulator and adhesive selection and using a novel endpost design for load transfer between two rails. Track support conditions’ impact on IJ performance has also been considered as a factor influencing IJ performance in track and incorporated in the study. The impact of insulation material selection on IJ performance is discussed. Finite element analysis was used extensively in the study where the analysis results were supported by laboratory and field testing. The results of the study indicate dynamic stresses in bonded IJs can be reduced nearly 40% in joint bars by a combination of design improvements on IJ components. Improved bar material properties are expected to lead to considerably reduced risk of bar fatigue failures in track.
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Couturaud, O., B. Jouault, S. Bonifacie, C. Chaubet e D. Mailly. "Tunneling and Coulomb Blockade in narrow GaAs/InGaAs/AlGaAs Hall bars in the quantum hall regime". In PHYSICS OF SEMICONDUCTORS: 28th International Conference on the Physics of Semiconductors - ICPS 2006. AIP, 2007. http://dx.doi.org/10.1063/1.2730065.

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Schurr, J., C. C. Kalmbach, M. Kruskopf, A. Muller, K. Pierz e F. Ahlers. "Magnetocapacitance and dissipation factor of epitaxial graphene Hall bars". In 2016 Conference on Precision Electromagnetic Measurements (CPEM 2016). IEEE, 2016. http://dx.doi.org/10.1109/cpem.2016.7540651.

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Hannah, Thomas, Reuben H. Kraft, Valerie Martin e Steve Ellis. "Impact of Imperfect Kolsky Bar Experiments Across Different Scales Using Finite Elements". In ASME 2022 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/imece2022-96816.

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Abstract Typical Kolsky bars are 10–20mm in diameter with the lengths of each main bar being on the scale of meters. To push 104 and higher strain rates smaller diameter bars, accompanied by shorter lengths, are needed. As the diameters of the bars decreases the precision in the alignment of the system must increase to maintain the same relative tolerance as the larger experimental systems. Conversely, as the size of the bars decreases so does the magnitude of gravity based frictional forces due to the decreased mass of the system. Finite Element (FE) models are typically generated assuming a perfect experiment with exact alignment and no gravity. Additionally, these simulations tend to take advantage of the radial symmetry of an ideal experiment which removes any potential for modeling non-symmetric effects but has the added benefit of a reduced computational load. In this work, we discuss some of the results of these fast-running symmetry models to establish a baseline and demonstrate the first-order use case of such methods. We then take advantage of high-performance computing techniques to generate several three-dimensional, half symmetry simulations using Abaqus® allowing modeling of gravity and misalignment. The imperfection is initially modeled using the static general process followed by a dynamic explicit simulation in which the impact portion of the test is conducted. This multi-step simulation structure creates a system that can properly investigate the impact of these real-world, non-axis symmetric effects. These simulations fully explore the impacts of these experimental realities and are described in detail to allow other researchers to implement a similar FE modeling structure to aid in their experimentation and diagnostic efforts. Both a 12.7 mm and 3.16 mm diameter bar system are evaluated to quantify the degree that these various experimental imperfections have across two size scales of Kolsky bar systems.
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"Hall Conductance of Open Two-Band Systems Via Dissipation Rate". In 2020 5th International Conference on Technologies in Manufacturing, Information and Computing. Francis Academic Press, 2020. http://dx.doi.org/10.25236/ictmic.2020.034.

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Mendach, S. "Magnetotransport On Evenly Curved Hall-Bars In InGaAs/GaAs-Microtubes". In PHYSICS OF SEMICONDUCTORS: 27th International Conference on the Physics of Semiconductors - ICPS-27. AIP, 2005. http://dx.doi.org/10.1063/1.1994178.

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Murano, H., K. Ikushima, T. Ikuta e K. Maehashi. "Quantum Hall Effect and Band Dispersion in Artificially Stacked CVD Graphene". In 2019 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 2019. http://dx.doi.org/10.7567/ssdm.2019.d-3-04.

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Iñarrea, J. "Zero-resistance states in Hall bars at low microwave frequency irradiation". In THE PHYSICS OF SEMICONDUCTORS: Proceedings of the 31st International Conference on the Physics of Semiconductors (ICPS) 2012. AIP, 2013. http://dx.doi.org/10.1063/1.4848380.

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Relatórios de organizações sobre o assunto "Bard Hall"

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Ward, Daniel Robert. Data on MOS Hall Bars 1410-1413. Office of Scientific and Technical Information (OSTI), fevereiro de 2015. http://dx.doi.org/10.2172/1171940.

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McElwain, Terry F., Eugene Pipano, Guy H. Palmer, Varda Shkap, Stephn A. Hines e Wendy C. Brown. Protection of Cattle against Babesiosis: Immunization against Babesia bovis with an Optimized RAP-1/Apical Complex Construct. United States Department of Agriculture, setembro de 1999. http://dx.doi.org/10.32747/1999.7573063.bard.

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Previous research and current efforts at control of babesiosis fall short of meeting the needs of countries where the disease is endemic, such as Israel, as well as the needs of exporting countries and countries bordering on endemic areas, such as the U.S. Our long-term goal is to develop improved methods of immunization against bovine babesiosis based on an understanding of the molecular mechanisms of immune protection and parasite targets of a protective immune response. In our previous BARD project, we established the basis for focusing on rhoptry antigens as components of a subunit vaccine against bovine babesiosis, and for additional research to better characterize rhoptry associated protein-1 (RAP-1) as a target of protective immunity. In this continuation BARD project, our objectives were to [1] optimize the immune response against RAP-1, and [2] identify additional rhoptry candidate vaccine antigens. The entire locus encoding B. bovis RAP-1 was sequenced, and the rap-1 open reading frame compared among several strains. Unlike B. bigemina, in which multiple gene copies with variant domains encode RAP-1, the B. bovis RAP-1 locus contains only two identical genes which are conserved among strains. Through testing of multiple truncated constructs of rRAP-1, one or more immunodominant T cell epitopes were mapped to the amino terminal half of RAP-1. At least one linear and one conformational B cell epitope have been demonstrated in the same amino terminal construct, which in B. bigemina RAP-1 also contains an epitope recognized by neutralizing antibody. The amine terminal half of the molecule represents the most highly conserved part of the gene family and contains motifs conserved broadly among the apicomplexa. In contrast, the carboxy terminal half of B. bovis RAP-1 is less well conserved and contains multiple repeats encoding a linear B cell epitope potentially capable of inducing an ineffective, T cell independent, type 2 immune response. Therefore, we are testing an amino terminal fragment of RAP-1 (RAP-1N) in an immunization trial in cattle. Cattle have beer immunized with RAP-1N or control antigen, and IL-12 with Ribi adjuvant. Evaluation of the immune response is ongoing, and challenge with virulent B. bovis will occur in the near future. While no new rhoptry antigens were identified, our studies did identify and characterize a new spherical body antigen (SBP3), and several heat shock proteins (HSP's). The SBP3 and HSP21 antigens stimulate T cells from immune cattle and are considered new vaccine candidates worthy of further testing. Overall, we conclude that a single RAP-1 vaccine construct representing the conserved amino terminal region of the molecule should be sufficient for immunization against all strains of B. bovis. While results of the ongoing immunization trial will direct our next research steps, results at this time are consistent with our long term goal of designing a subunit vaccine which contains only the epitopes relevant to induction of protective immunity. Parallel studies are defining the mechanisms of protective immunity. Apicomplexan protozoa, including babesiosis and malaria, cause persistent diseases for which control is inadequate. The apical organelles are defining features of these complex protozoa, and have been conserved through the evolutionary process, Past and current BARD projects on babesiosis have established the validity and potential of exploiting these conserved organelles in developing improved control methods applicable to all apicomplexan diseases.
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Goswami, Omanjana, e Karen Perry Stillerman. Cultivating Control: Corporate Lobbying on the Food and Farm Bill. Union of Concerned Scientists, maio de 2024. http://dx.doi.org/10.47923/2024.15464.

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The US food and agriculture system is dominated by giant corporations, which, along with industry associations that represent and align with them, have hijacked federal farm policy for profit. Analysis by the Union of Concerned Scientists shows that between 2019 and 2023, giant agribusiness companies and industry associations spent well over half a billion dollars lobbying Congress to influence legislation that includes the next food and farm bill. A pay-to-play food policy that prioritizes corporate profits is bad for the health and wellbeing of people and our environment. Lawmakers should center the needs of small and midsize farms, diverse farmers, food and farm workers, consumers, and communities—not just those of giant corporations—when writing this legislation.
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Down, Murray. PR686-203903-R02 Ongoing InSAR Geohazard Monitoring of Pipeline Right-of Ways in the Appalachian Mountains. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), outubro de 2021. http://dx.doi.org/10.55274/r0012178.

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Ground displacement along pipeline corridors has the potential to compromise pipeline integrity. The Appalachian Mountain region is almost entirely classed as high landslide susceptibility by the United States Geological Survey (USGS) and crossed by numerous transmission pipelines and gathering lines. In phase I of this research project, 3vGeomatics successfully demonstrated a proof of concept on the effectiveness, reliability, and precision of using L-band ( ) SAR satellites for InSAR displacement monitoring of vegetated areas. The second phase of this project improved operational monitoring utility of long wavelength InSAR by leveraging a two and a half year dataset of long-wavelength satellite radar data with improved product formats to facilitate management of pipeline threats posed by both geohazards and third party encroachment. Potential encroachment threats are highlighted by new object detection capabilities that use the same raw SAR data to produce additional intelligence. As with the previous year's results, these phase-2 InSAR and new object detection results were compared with measurements from other sensors including differential light detection and ranging (LiDAR), visual field inspections, and aerial photographs. This project demonstrated the technological readiness and streamlined product formats delivering actionable intelligence from L-band SAR data for operational monitoring of ground displacement and other hazards over entire pipeline networks and associated infrastructure in vegetated areas. There is a related webinar.
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Rinkevich, Baruch, e Cynthia Hunter. Inland mariculture of reef corals amenable for the ornamental trade. United States Department of Agriculture, janeiro de 2006. http://dx.doi.org/10.32747/2006.7695880.bard.

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The worldwide market for ornamental saltwater invertebrates supplies the needs of millions of aquarium hobbyists, public exhibitions (i.e., zoos) universities and research institutions. With respect to reef building corals, it is estimated that more than half a million coral colonies/year from a total 93 genera, were exported globally during the period of 1985-1997. International value of retail sale of live coral trade alone is estimated as $78 million in 1997 (not including the illegally, widely smuggled material). The continuous, large-scale collection of marine organisms is responsible, in many places, for the destruction of coral reefs. The expected expansion of the trade further threatens these fragile habitats. While no true captive-bred corals are commercially available, our long-term goal is to develop ex situ inland farming of coral colonies that will circumvent the need for in situ collections and will provide domesticated specimens for the trade and for research. We simultaneously studied two model branching coral species, Stylophora pistillata (Pocilloporidae; in Israel) and Porites (Poritidae; in the US). The proposal included three specific aims: (a) To develop protocols for nubbins (small fragments, down to the size of a single polyp) usage in coral farming;(b) To address the significance of colony pattern formation to the coral trade; and (c) To develop the protocols of using nubbins in physiological and ecotoxicological assays (using oil dispersants, the expression of the stress protein HSP-70, household detergents, etc.). Ten scientific publications (published manuscripts, accepted for publications, submitted to scientific journals, in preparation), revealing results that were related to all three specific aims, originated from this BARD proposal. As a result of the work supported by the BARD, we have now, in hand, original and improved protocols for coral maintenance ex situ, proven expertise on manipulating coral colonies’ pattern formation and biological knowledge on island mariculture of reef corals (from Hawaii and from the Red Sea) amenable for the ornamental trade (for public and private aquaria use, for experimentation). At least one Israeli company (Red Sea Corals, Ltd., KibbutzSaar) is using our methodologies for further developing this new mariculture sector. We are now in the process of introducing the rationale and methodologies to Hawaiian private entities to expand dissemination of the research outcomes.
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van Hensbergen, Hester. Nature Knows Best? Naturalness in the Ultra-Processed Foods Debate. TABLE, junho de 2024. http://dx.doi.org/10.56661/f76228c7.

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What can an idea like ultra-processed foods (UPFs), which is so appealing and yet so divisive, tell us about the underlying values, fears, and hopes of those involved in the debate? In this essay, we will explore how debates around UPFs intersect with concerns about naturalness in the food system, where naturalness represents a tangled bundle of other associated values. Firstly, this essay offers a definition of ultra-processed foods and explores how these foods are understood both at the level of food formulation and at the level of the food system. Secondly, the essay explores common conceptions of natural food and looks at how the debate around UPFs relates to a widespread preference for naturalness, sometimes referred to as the “naturalness bias”, in food and food systems. In the second half of the essay, three aspects of concerns with UPFs, which are perceived as unnatural, are explored: the question of whether UPFs are bad for us and in what ways; the concern with UPFs as displacing more natural foodstuffs and food systems; and the question of whether UPFs are good or bad for nature and the earth’s ecosystems. Is a more natural food system the answer to our problems? Or does the preference for naturalness, and the dismissal of heavily processed foods, have potentially negative implications for the sustainability of the future food system? Is a better future one that includes the benefits of both natural foods and some heavily processed foods, allowing us to make the most of the earth’s limited natural resources, and provide adequate nutrition for all? These are the questions that underlie the debate around ultra-processed foods, but which are rarely drawn into the light.
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Tanny, Josef, Gabriel Katul, Shabtai Cohen e Meir Teitel. Micrometeorological methods for inferring whole canopy evapotranspiration in large agricultural structures: measurements and modeling. United States Department of Agriculture, outubro de 2015. http://dx.doi.org/10.32747/2015.7594402.bard.

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Original objectives and revisions The original objectives as stated in the approved proposal were: (1) To establish guidelines for the use of micrometeorological techniques as accurate, reliable and low-cost tools for continuous monitoring of whole canopy ET of common crops grown in large agricultural structures. (2) To adapt existing methods for protected cultivation environments. (3) To combine previously derived theoretical models of air flow and scalar fluxes in large agricultural structures (an outcome of our previous BARD project) with ET data derived from application of turbulent transport techniques for different crops and structure types. All the objectives have been successfully addressed. The study was focused on both screenhouses and naturally ventilated greenhouses, and all proposed methods were examined. Background to the topic Our previous BARD project established that the eddy covariance (EC) technique is suitable for whole canopy evapotranspiration measurements in large agricultural screenhouses. Nevertheless, the eddy covariance technique remains difficult to apply in the farm due to costs, operational complexity, and post-processing of data – thereby inviting alternative techniques to be developed. The subject of this project was: 1) the evaluation of four turbulent transport (TT) techniques, namely, Surface Renewal (SR), Flux-Variance (FV), Half-order Time Derivative (HTD) and Bowen Ratio (BR), whose instrumentation needs and operational demands are not as elaborate as the EC, to estimate evapotranspiration within large agricultural structures; and 2) the development of mathematical models able to predict water savings and account for the external environmental conditions, physiological properties of the plant, and structure properties as well as to evaluate the necessary micrometeorological conditions for utilizing the above turbulent transfer methods in such protected environments. Major conclusions and achievements The major conclusions are: (i) the SR and FV techniques were suitable for reliable estimates of ET in shading and insect-proof screenhouses; (ii) The BR technique was reliable in shading screenhouses; (iii) HTD provided reasonable results in the shading and insect proof screenhouses; (iv) Quality control analysis of the EC method showed that conditions in the shading and insect proof screenhouses were reasonable for flux measurements. However, in the plastic covered greenhouse energy balance closure was poor. Therefore, the alternative methods could not be analyzed in the greenhouse; (v) A multi-layered flux footprint model was developed for a ‘generic’ crop canopy situated within a protected environment such as a large screenhouse. The new model accounts for the vertically distributed sources and sinks within the canopy volume as well as for modifications introduced by the screen on the flow field and microenvironment. The effect of the screen on fetch as a function of its relative height above the canopy is then studied for the first time and compared to the case where the screen is absent. The model calculations agreed with field experiments based on EC measurements from two screenhouse experiments. Implications, both scientific and agricultural The study established for the first time, both experimentally and theoretically, the use of four simple TT techniques for ET estimates within large agricultural screenhouses. Such measurements, along with reliable theoretical models, will enable the future development of lowcost ET monitoring system which will be attainable for day-to-day use by growers in improving irrigation management.
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Demchyna, Bohdan, e Yaroslav Shydlovskyi. Recommendations for Designing Wooden Arches on Metal-toothed Plates. Intellectual Archive, março de 2021. http://dx.doi.org/10.32370/ia_2021_03_18.

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This paper presents the findings of the pilot studies and recommendations for designing of two-hinged wooden arches. The prototype models of wooden arches with the span of 6mand the rise of 1m were designed. The models had a rectangular cross-section of 180x40mm and a T-section of 180x40mm with a plywood plate with the thickness of 6 mm and the width of 500mm. The main objective of the T-section was to ensure the stability of the arch. Each arch was composed of six segments –boards joined by clamping plates. The bowstring truss including two inclined tie bars enables carrying asymmetric loads and provides in-plane stability of the arch. A methodology for laboratory testing of the prototype models of wooden arches subjected to different types of loads was developed. Two prototypes of wooden arches were tested with rectangular cross-sections and two T-section ones subjected to the loading across the span, and two prototypes subjected to the half-span loading. In total, eight arches were tested. Deflections of arches, cross-section deformations and arch thrust force were recorded. The arches were tested until failure. The results of testing revealed insufficient stability of the arches with rectangular cross-section in the horizontal plane. For the arches with T-section the whole arch rib was damaged, the in-plane stability was ensured by the T-section. The collapsing force of the T-section arch was about 1.3 times greater than the collapsing force of the rectangular section arches.
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Blaxter, Tamsin, e Tara Garnett. Primed for power: a short cultural history of protein. TABLE, novembro de 2022. http://dx.doi.org/10.56661/ba271ef5.

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Protein has a singularly prominent place in discussions about food. It symbolises fitness, strength and masculinity, motherhood and care. It is the preferred macronutrient of affluence and education, the mark of a conscientious diet in wealthy countries and of wealth and success elsewhere. Through its association with livestock it stands for pastoral beauty and tradition. It is the high-tech food of science fiction, and in discussions of changing agricultural systems it is the pivotal nutrient around which good and bad futures revolve. There is no denying that we need protein and that engaging with how we produce and consume it is a crucial part of our response to the environmental crises. But discussions of these issues are affected by their cultural context—shaped by the power of protein. Given this, we argue that it is vital to map that cultural power and understand its origins. This paper explores the history of nutritional science and international development in the Global North with a focus on describing how protein gained its cultural meanings. Starting in the first half of the 19th century and running until the mid-1970s, it covers two previous periods when protein rose to singular prominence in food discourse: in the nutritional science of the late-19th century, and in international development in the post-war era. Many parallels emerge, both between these two eras and in comparison with the present day. We hope that this will help to illuminate where and why the symbolism and story of protein outpace the science—and so feed more nuanced dialogue about the future of food.
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Olsen. L51740 Evaluation of the Structural Integrity of Cold Field-Bent Pipe. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), maio de 1996. http://dx.doi.org/10.55274/r0010361.

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During recent pipeline construction seasons, there have been reported difficulties in cold field bending different joints of line pipe produced by the same manufacturer during a particular production run. These difficulties were typically manifested as an inability to achieve bends of one to one-and-a-half degrees per diameter in the pipe without forming ripples. Some of these problems could be traced to poor bending practices, i.e., inappropriate bending machine set-up and operator inexperience. However, it was observed that even with proper machine set-up and experienced operators, some "bad pipe" exists that could not be bent as far as desired without introducing ripples. The objective of this program was to develop an acceptance criterion for an allowable ripple in a gas-transmission pipeline as a result of a cold field bend. Previous acceptance or rejection criteria for ripples in cold field bent pipe were quite subjective. The purpose of this study was to define quantitative limits for acceptable ripple heights that will not compromise the integrity of the pipe during its expected life. In a program discussed at the 9th PRCI/EPRG meeting, the work performed during a joint Australian Pipeline Industry Association/Line Pipe Research Supervisory Committee effort on the mechanics of cold field bending was presented. Based on theoretical and experimental studies, it was found that modern, high-strength, high D/t pipe forms ripples at very low bend angles during cold field bending. Although there was some circumstantial evidence that some amount of rippling can be tolerated in a pipe, there had been no systematic effort to quantify the influence that the ripples have on the long-term integrity of pipe.
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