Relevant bibliographies by topics / Great Seal

Contents

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

Academic literature on the topic 'Great Seal'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Great Seal"

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Andersen, Signe M., Jonas Teilmann, Pernille B. Harders, Else H. Hansen, and Dorthe Hjøllund. "Diet of harbour seals and great cormorants in Limfjord, Denmark: interspecific competition and interaction with fishery." ICES Journal of Marine Science 64, no. 6 (July 3, 2007): 1235–45. http://dx.doi.org/10.1093/icesjms/fsm092.

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Abstract Andersen, S. M., Teilmann, J., Harders, P. B., Hansen, E. H., and Hjøllund, D. 2007. Diet of harbour seals and great cormorants in Limfjord, Denmark: interspecific competition and interaction with fishery. – ICES Journal of Marine Science, 64: 1235–1245. Comparative studies on seasonal and regional variation in the diet of harbour seals and great cormorants were conducted in Limfjord, a semi-closed water system in northwest Denmark. To compare harbour seal diet from an open water system containing similar prey species, a small diet analysis from the western Baltic is included. Seal diet during spring reflected the abundance of Atlantic herring entering Limfjord to spawn (90% of the weight consumed), whereas during summer and autumn, seal diet was rather more mixed. The diet of seals in the Rødsand area and cormorants in Limfjord showed no marked seasonal trends. During spring, there was little overlap between seal and cormorant diets in Limfjord because seals fed almost exclusively on Atlantic herring, and they consumed significantly larger herring than did the cormorants. During summer and autumn, seal and cormorant diets overlapped markedly, although the fish items consumed by seals were generally larger. Few commercially targeted species were found in the stomachs and scats of seals and casts of great cormorants, but Atlantic herring were taken by the seals at a size greater than that allowed by the fishery.
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SKJÆRVØ, P. O. "The Great Seal of Peroz." Studia Iranica 32, no. 2 (June 1, 2003): 281–86. http://dx.doi.org/10.2143/si.32.2.563204.

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Hochachka, P. W., and R. A. Foreman III. "Phocid and cetacean blueprints of muscle metabolism." Canadian Journal of Zoology 71, no. 10 (October 1, 1993): 2089–98. http://dx.doi.org/10.1139/z93-294.

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Large seals, such as northern and southern elephant seals and Weddell seals, are able to dive for unexpected lengths of time and to enormous depth. The current dive-duration record is 120 min (recorded for the southern elephant seal); the current depth record is 1.5 km (recorded for the northern elephant seal). Equally striking is the widespread observation that these seals, when at sea, spend close to 90% of the time submerged and often at great depth. For practical purposes, these species can be viewed as true mesopelagic animals when they are at sea. Analysis of current knowledge indicates that enzyme adaptations in chronic hypobaric hypoxia are directed mainly towards up-regulation of metabolic efficiencies. Evidence that similar metabolic adjustments are utilized by seals was obtained by profiling the maximum enzyme activities of four phocid species (harbor seal, Weddell seal, crabeater seal, leopard seal) and one cetacean (fin whale). In the seals, the patterns obtained were strikingly similar to those of hypobaric hypoxia adaptations. The extensive enzyme data obtained on seals, however, showed notably different patterns from those found in whale muscles. The data from the large seals were consistent with the concept that low power output but high-efficiency metabolic functions of skeletal muscles coupled with inherently low (and potentially further suppressible) metabolic rates constitute strategic biochemical components in the design of a mesopelagic mammal.
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Hauksson, Erlingur. "Observations on seals on the island of Surtsey in the period 1980-2012." Surtsey research 13 (2015): 41–43. http://dx.doi.org/10.33112/surtsey.13.4.

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Grey seals (Halichoerus grypus Fabricius) and harbour seals (Phoca vitulina L.) have been surveyed on the coasts of Iceland since 1980. During the period 1980-2012, both seal species have declined markedly in numbers at the Icelandic coast. The grey seal has established a considerable breeding site on the northern spit of the Surtsey island. This is at present one of the biggest grey seal rookeries on the southern shores of Iceland, with estimated about 60 pups born there in the autumn of 2012. On the other hand, the harbour seal has not been numerous on Surtsey during breeding time in the summer. Breeding sites of harbour seals on the south coast of Iceland closest to Surtsey are in the estuaries of the glacial rivers Ölfusá, Þjórsá, Markarfljót and Kúðafljót. Harbour seals, however, haul-out in great numbers on the northern shores of Surtsey during the winter, presumably using the island as a resting place after foraging in the adjacent waters.
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Brooker, Graham, and Jairo Gomez. "Lev Termen's Great Seal bug analyzed." IEEE Aerospace and Electronic Systems Magazine 28, no. 11 (November 2013): 4–11. http://dx.doi.org/10.1109/maes.2013.6678486.

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Selby, Stephen. "A question concerning the antiquity of the first bronze seals in China." Journal of Chinese Writing Systems 2, no. 1 (March 2018): 59–65. http://dx.doi.org/10.1177/2513850217748502.

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Seal carving is one of the great art forms of China, but one that is less known in the West. Over the centuries, Chinese authors have carried out many studies of the history and styles of seal carving. One question that remains unanswered to this day is when seals started to be used in China. This article addresses one aspect of this doubt.
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Gan, Hui, and Kun Yu Yang. "Structure Characteristics and Improvement of Oil Seal of Turbo-Supercharger." Advanced Materials Research 779-780 (September 2013): 1130–33. http://dx.doi.org/10.4028/www.scientific.net/amr.779-780.1130.

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Through the analysis of the sealing mechanism of the oil seals in exhaust gas turbo supercharger and the comparative test of different oil seals with the pressure change in the oil-return chamber, a seal that uses a caulking ring with reverse threads is designed, and an optimum combination of oil seal is selected. The combination of caulking ring and the oil-return thread structure has better complementary action on oil sealing, because for the seal with oil-return reverse thread there is better dynamic and static seal effect on ring seal and has good sealing performance and high reliability at high speed. The test results of screening selection of combination seals show that different combinations of caulking ring and the oil-return threads have great influence on the pressure of the oil-return chamber. The combination of caulking ring outside and oil-return threads inside is recommended to be used. In addition, the smooth return of the oil can be ensured as far as possible by increasing the supercharger oil-return chamber volume. The improved structure of the oil seal has effectively enhanced the reliability of the whole unit of the exhaust gas turbo supercharger.
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Baheti, S. K., and R. G. Kirk. "Analysis of High Pressure Liquid Seal Ring Distortion and Stability Using Finite Element Methods." Journal of Tribology 121, no. 4 (October 1, 1999): 921–26. http://dx.doi.org/10.1115/1.2834156.

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The evaluation of floating bushing ring oil seals is of great importance for designs of high pressure centrifugal compressors. This is a result of their enhanced damping capacity at low speeds and their strong destabilizing action at speeds in excess of twice the compressor first critical speed. Accurate prediction of oil seal leakage and exit temperature is very important from the standpoint of the pump and cooler selection for the seal oil console. The previous research has performed thermohydrodynamic (THD) analysis of bushing seal rings with various geometries. The current work is to evaluate the influence of the mechanical deformation on the thermohydrodynamic analysis of the bushing seal ring. The finite element method is used to predict the mechanical deformation of the bushing seal ring due to oil pressure and to solve the nonlinear and coupled Reynolds and energy equations for the pressure and temperature distributions, respectively. The perturbation technique is used to evaluate the stiffness and damping coefficients of the oil seals. Eigenvalue analysis is performed to study the dynamic stability of the compressor rotor. Results comparing the seal leakage, seal oil outlet temperatures, stiffness and damping coefficients, growth factors and damped natural frequencies from the THD analyses with and without the influence of the mechanical deformation of the bushing seal ring are presented. The results indicate that under high pressure conditions the influence of the mechanical deformation of the bushing seal ring on the seal performance is very significant.
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Li, Fengqin, Baoling Cui, and Lulu Zhai. "Research on Rotordynamic Characteristics of Pump Annular Seals Based on a New Transient CFD Method." Processes 8, no. 2 (February 15, 2020): 227. http://dx.doi.org/10.3390/pr8020227.

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Pump annular seals can cause fluid reaction forces that have great effects on the vibration characteristic and stability of a pump system. For this reason, it is important to study rotordynamic characteristics of annular seals. In this paper, a new transient computational fluid dynamics (CFD) method with dynamic mesh is proposed to investigate rotordynamic characteristics of the pump annular seal. The reliability of the transient CFD method is validated by comparison with the results from the experiment and the bulk-flow method, and the relationship between the seal length and rotordynamic characteristics is investigated by the transient CFD method. The results indicate that direct stiffness decreases sharply even turns to negative as the seal length increases, this phenomenon may change the direction of fluid force on the rotor surface and affect supporting condition of the pump rotor. With the increasing seal length, the whirl frequency ratio gradually increases, which would weaken the stability of the pump rotor system.
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Dennis, T. E., and P. D. Shaughnessy. "Seal survey in the Great Australian Bight region of Western Australia." Wildlife Research 26, no. 3 (1999): 383. http://dx.doi.org/10.1071/wr98047.

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In December 1996, a survey by helicopter of the Baxter Cliffs region of the Great Australian Bight in Western Australia did not locate any previously unreported colonies of the Australian sea lion or New Zealand fur seal. Although geologically contiguous with the Bunda Cliffs in South Australia (where sea lions have a scattered distribution), the Baxter Cliffs appeared generally more weathered and stable, with fewer collapsed sections of cliff forming platforms and providing habitat for seals. In total, 29 Australian sea lions were observed during the survey. Most were at a previously surveyed site approximately 2 km west of Twilight Cove. Ten other sites were recorded as potentially providing haul- out opportunity for sea lions; they were mainly caves and deep overhangs with access from the sea. No fur seals were seen. From this survey and from other records, we estimate the Australian sea lion population along the Baxter Cliffs in the Great Australian Bight region of Western Australia at less than 100 animals.
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Dissertations / Theses on the topic "Great Seal"

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Rheingans, Jim. "The Eighth Karmapa's life and his interpretation of the Great Seal." Thesis, Bath Spa University, 2008. http://researchspace.bathspa.ac.uk/1477/.

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This thesis investigates the Eighth Karmapa (1507-1554) and his Great Seal instructions. It demonstrates that the Eighth Karmapa was not only one of the most significant scholars of his school, but one who mastered and taught its highest meditational precepts. The thesis argues that analysing his Great Seal teachings through studying instruction-related genres in their historical, doctrinal, and literary contexts reveals a pedagogical pragmatism. It is more useful to view the Great Seal as an independent key instruction that the guru adapts to the students' needs, rather than a fixed doctrine. The thesis contributes significantly to the religious history of Tibet by interpreting a number of previously unstudied Tibetan sources. The main textual sources are selected spiritual biographies (rnam thar), question and answer texts (dris lari), meditation instructions (khrid), esoteric precepts (man ngag), and advices (slab byd) from the Collected Works of the Eighth Karmapa (2000-2004).
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Braitstein, Lara 1971. "Saraha's Adamantine Songs : texts, contexts, translations and traditions of the Great Seal." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=85132.

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My dissertation is focused on a cycle of Saraha's Adamantine Songs and their relationship to the Great Seal. Belonging to a genre known as 'Adamantine Songs'---Vajra Giti in Sanskrit, or rDo rje 'i gLu in Tibetan---their titles are: "A Body Treasury called the Immortal Adamantine Song"; "A Speech Treasury called the Manjughosa Adamantine Song" and "A Mind Treasury called the Unborn Adamantine Song". The dissertation is divided into two parts: the first is the contextualization of a Great Seal (Sanskrit: mahamudra; Tibetan: phyag rgya chenpo) root text by the adept Saraha; and the second is a critical edition of the Tibetan text along with the first full translation of the text into English. The critical edition of the Tibetan is based on versions of the poems drawn from five different Tibetan sources---four scriptural (the sDe dge, Co ne, sNar thang and 'Peking' bsTan 'gyurs) and one literary (Mipham Rinpoche's 19th century collection 'phags yul grub dbang dam pa rnams kyi zab mo'i do ha rnams las kho la byung mu tig phreng ba or "Pearl Garland of the Profound Dohas of the Noble Great Siddhas of India").
The first chapters of the dissertation explore the contexts of this song cycle, its author and traditions that relate to it, in particular the Karma Kagyu (karma bka' brgyud) school of Tibetan Buddhism. The first chapter is a discussion of the author, Saraha, the tales of whose many 'lives' pervade Tibetan Buddhist traditions to this day. Chapter 2 explores the broader context of South Asian siddha traditions, while Chapters 3 and 4 provide an analysis of the Great Seal both as it emerges through Saraba's work and as it exists as a living tradition in the Tibetan Buddhist context. As mentioned above, particular emphasis is given to the Karma Kagyu school. Finally, Chapter 5 provides an introduction to Tibetan poetics and the Sanskrit traditions that influence it.
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Stewardson, Carolyn Louise, and carolyn stewardson@anu edu au. "Biology and conservation of the Cape (South African) fur seal Arctocephalus pusillus pusillus (Pinnipedia: Otariidae) from the Eastern Cape Coast of South Africa." The Australian National University. Faculty of Science, 2002. http://thesis.anu.edu.au./public/adt-ANU20030124.162757.

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[For the Abstract, please see the PDF files below, namely "front.pdf"] CONTENTS. Chapter 1 Introduction. Chapter 2 Gross and microscopic visceral anatomy of the male Cape fur seal with reference to organ size and growth. Chapter 3 Age determination and growth in the male Cape fur seal: part one, external body. Chapter 4 Age determination and growth in the male Cape fur seal: part two, skull. Chapter 5 Age determination and growth in the male Cape fur seal: part three, baculum. Chapter 6 Suture age as an indicator of physiological age in the male Cape fur seal. Chapter 7 Sexual dimorphism in the adult Cape fur seal: standard body length and skull morphology. Chapter 8 Reproduction in the male Cape fur seal: age at puberty and annual cycle of the testis. Chapter 9 Diet and foraging behaviour of the Cape fur seal. Chapter 10(a) The Impact of the fur seal industry on the distribution and abundance of Cape fur seals. Chapter 10(b) South African Airforce wildlife rescue: Cape fur seal pups washed from Black Rocks, Algoa Bay, during heavy seas, December 1976. Chapter 11(a) Operational interactions between Cape fur seals and fisheries: part one, trawl fishing. Chapter 11(b) Operational interactions between Cape fur seals and fisheries: part two, squid jigging and line fishing. Chapter 11(c) Operational interactions between Cape fur seals and fisheries: part three, entanglement in man-made debris. Chapter 12 Concentrations of heavy metals (Cd, Cu, Pb, Ni & Zn) and organochlorine contaminants (PCBs, DDT, DDE & DDD) in the blubber of Cape fur seals. Chapter 13 Endoparasites of the Cape fur seal. Chapter 14(a) Preliminary investigations of shark predation on Cape fur seals. Chapter 14(b) Aggressive behaviour of an adult male Cape fur seal towards a great white shark Carcharodon carcharias. Chapter 15 Conclusions and future directions.
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Patterson, Lewis James. "Shield of empire race, memory, and the "cult of the navy" in fin de siécle Britain /." Pullman, Wash. : Washington State University, 2009. http://www.dissertations.wsu.edu/Thesis/Summer2009/l_patterson_072209.pdf.

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Sayers, Jeremy H. "The Great Mysterious." University of Akron / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=akron1271258434.

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Davis, Rohan Andrew, and davis_rohan@hotmail com. "Chemical Investigations of Great Barrier Reef Ascidians - Natural Product and Synthetic Studies." Griffith University. School of Science, 2000. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20030102.104858.

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This thesis describes the chemical investigations of several ascidian species collected from the Great Barrier Reef, Queensland, Australia. The thesis is divided into two separate components, Part A focuses on the isolation and structure elucidation of 11 previously undescribed ascidian metabolites. All structures were assigned using a combination of spectroscopic and/or chemical methods. Part B relates to the isolation and chemical conversion of a natural product to a combinatorial template. The natural product template was subsequently used in the generation of a solution-phase combinatorial chemistry library. A further two combinatorial libraries were generated from a synthesised model compound that was related to the natural product template. Part A. Investigation of Aplidium longithorax collected from the Swains Reefs resulted in the isolation of two new para-substituted cyclofarnesylated quinone derived compounds, longithorones J (30) and K (31). The former compound had its absolute stereochemistry determined by the advanced Mosher method. From an Aplidium longithorax collected from Heron Island, two new cyclofarnesylated hydroquinone compounds, longithorols C (46) and D (47) and a novel macrocyclic chromenol, longithorol E (48) were isolated. Longithorol C (46) had its absolute stereochemistry determined by the advanced Mosher method. Chemical investigation of the deep-purple colonial ascidian, Didemnum chartaceum collected from Swains Reefs led to the isolation of five new lamellarin alkaloids, which included the 20-sulfated derivatives of lamellarins B (94), C (95) and L (96), the 8-sulfated derivative of lamellarin G (97) and the non-sulfated compound, lamellarin Z (98). The known lamellarins A (63), B (80), C (64), E (65), G (67), and L (71) plus the triacetate derivatives of lamellarin D (82) and N (83) were also isolated. An aberration in the integration of signals in the 1H NMR spectra of the 20-sulfated derivatives (94-96) led to NMR relaxation studies. T1 values were calculated for all protons in the sulfated lamellarins (94-97) and their corresponding non-sulfated derivatives (80, 64, 71, 67). The protons ortho to the sulfate group in compounds (94-97) had T1 values up to five times larger than the corresponding protons in their non-sulfated derivatives (80, 64, 71, 67). A specimen of Eudistoma anaematum collected from Heron Island was shown to contain a new b-carboline alkaloid, eudistomin V (130), in addition to the two known metabolites, eudistomin H (105) and I (106). Part B. The known natural products, 1,3-diphenethylurea (29), 1,3-dimethylxanthine (30), 1,3-dimethylisoguanine (31) and the salts of tambjamine C (16), E (18) and F (19) were isolated from the ascidian, Sigillina signifera collected in Blue Lagoon, Lizard Island. Base hydrolysis on mixtures of the salts of tambjamine C (16), E (18) and F (19) resulted in the production of 4-methoxy-2,2-bipyrrole-5-carbaldehyde (26). This natural product template (26) was used in the generation of an enamine combinatorial chemistry library (98, 103-111) using solution-phase parallel synthesis. The biaryl compound, 4-(2-thienyl)-1H-pyrrole-2-carbaldehyde (59) was successfully synthesised using Suzuki-Miyaura coupling conditions and subsequently used as a template in the generation of an amine (67, 77, 80-87) and imine (78, 92-95) combinatorial library using solution-phase parallel synthesis.
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Samokhvalov, Vsevolod. "Russian-European relations in the Balkans and the Black Sea region." Thesis, University of Cambridge, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708856.

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Walker, James, Vincent L. Gaffney, Simon Fitch, Merle Muru, Andy Fraser, M. Bates, and R. Bates. "A great wave: the Storegga tsunami and the end of Doggerland?" Cambridge University Press, 2020. http://hdl.handle.net/10454/18239.

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Yes
Around 8150 BP, the Storegga tsunami struck North-west Europe. The size of this wave has led many to assume that it had a devastating impact upon contemporaneous Mesolithic communities, including the final inundation of Doggerland, the now submerged Mesolithic North Sea landscape. Here, the authors present the first evidence of the tsunami from the southern North Sea, and suggest that traditional notions of a catastrophically destructive event may need rethinking. In providing a more nuanced interpretation by incorporating the role of local topographic variation within the study of the Storegga event, we are better placed to understand the impact of such dramatic occurrences and their larger significance in settlement studies.
The study was supported by European Research Council funding through the European Union's Horizon 2020 research and innovation programme (project 670518 LOST FRONTIERS, https://erc.europa.eu/ https://lostfrontiers.teamapp.com/) and the Estonian Research Council grant (https://www.etag.ee; project PUTJD829).
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Anderson, Gretchen J. "Improving larval sea lamprey assessment in the Great Lakes using adaptive management and historical records." Diss., Connect to online resource - MSU authorized users, 2006.

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Raich, Susan Alice. "The sea in the Anglo-Norman realm, c. 1050 to c. 1180." Thesis, University of Cambridge, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708404.

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Books on the topic "Great Seal"

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Carr, Aaron. The Great Seal. New York: AV2 by Weigl, 2014.

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The Great Seal of the United States. Mankato Minn: Capstone Press, 2004.

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Laura, Cortner, and Hieronimus Robert, eds. Founding fathers, secret societies, Freemasons, Illuminati, Rosicrucians, and the decoding of the Great Seal. Rochester, Vt: Destiny Books, 2006.

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Embry, Adam. Keeper of the great seal of heaven: Sealing of the Spirit in the life and thought of John Flavel. Grand Rapids, MI: Reformation Heritage Books, 2011.

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Great Britain. Sovereign (1837-1901 : Victoria). Newfoundland: Letters-patent passed under the Great Seal of the United Kingdom, constituting the office of Governor and Commander-in-Chief of the Island of Newfoundland and its dependencies. [London: s.n., 2004.

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den, Heuvel Gerd van, Weiss Ulrike, and Kay Alex J, eds. Brief und Siegel für ein Königreich: Die Prunkurkunden zur hannoverschen Thronfolge in Grossbritannien = Hand and seal for a kingdom : the ornate charters of the Hanoverian succession in Great Britain. Göttingen: Wallstein, 2014.

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Office, Foreign. British Columbia: Draft of a commission passed under the Great Seal of the United Kingdom of Great Britain and Ireland, appointing Anthony Musgrave, Esquire, to be governor and commander-in-chief of the colony of British Columbia and its dependencies. [London]: Printed at the Foreign Office by T. Harrison, 2002.

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Great Thoughts to Sell By. New York: McGraw-Hill, 2007.

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Queensland: Letters Patent passed under the Great Seal of the Realm revoking the Letters Patent of 10th June 1925 and making new provision for the office of Governor of the State of Queensland. London: HMSO, 1986.

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Great Britain. Sovereign (1952- : Elizabeth II). Western Australia: Letters Patent passed under the Great Seal of the Realm revokingthe Letters Patent of 29th October 1900 and making new provision for the Office of Governor of the State of Western Australia. London: HMSO, 1986.

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Book chapters on the topic "Great Seal"

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Elliott, M. J., M. R. de Leval, and J. Stark. "Fibrin Seal (Tisseel/Tissucol) in Paediatric Cardiothoracic Surgery. The Experience of the Hospital for Sick Children, Great Ormond Street, London." In Fibrin Sealant in Operative Medicine, 191–95. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-71633-1_30.

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Embabi, Nabil Sayed. "The Great Sand Sea." In World Geomorphological Landscapes, 165–79. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-65661-8_13.

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"53. Flight of the Great Seal." In Milton and His England, 44. Princeton University Press, 2015. http://dx.doi.org/10.1515/9781400871865-056.

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Neville, Cynthia J. "Making a Manly Impression: The Image of Kingship on Scottish Royal Seals of the High Middle Ages." In Nine Centuries of Man. Edinburgh University Press, 2017. http://dx.doi.org/10.3366/edinburgh/9781474403894.003.0006.

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A central aspect of the growing sophistication of government in thirteenth-century Scotland was the crown’s use of written deeds authenticated with the great seal as instruments through which to express the royal will. This chapter, using sigillography (the study of seals) argues that over the course of the high and later Middle Ages the rulers of Scotland demonstrated a keen interest in the images, words and symbols that appeared on their great seals, encoding into these objects a complex and constantly evolving series of messages about their conceptualisation of kingship. The decorated surface of the seal and its accompanying Latin-language legend offered the kings a unique medium through which to project powerful images of Scottish identity, masculinity and power.
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Weightman, Gavin. "A Suttonian in America." In The Great Inoculator, 79–85. Yale University Press, 2020. http://dx.doi.org/10.12987/yale/9780300241440.003.0009.

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This chapter explores the practice of Suttonian inoculation in America. In Britain, there were not really any challenges to the Suttons' claim of their inoculation method's originality. However, most of those who practised the new method in Britain were members of the Sutton family or practitioners who were credited, having bought the Sutton seal of approval. Not many tried their luck abroad. In particular, there seemed to be little incentive to set up in practice in the American colonies. Smallpox inoculation had been pioneered in Boston in 1721, the same year as the Newgate trial in London. In some of the thirteen counties of colonial America it had been banned altogether, in others it had been practised with considerable success. Why cross the Atlantic for such an unpromising venture? One who did was James Latham, an army sergeant who, before he was posted to Quebec with the threat of revolution growing in the colonies to the south, had got himself accredited as a Suttonian inoculator.
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"The Ridware Cartulary and the Great Seal of England." In Illuminating the Middle Ages, 352–68. BRILL, 2020. http://dx.doi.org/10.1163/9789004422339_025.

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"Lord Chancellors and Lord Keepers of the Great Seal." In The Routledge Companion to the Stuart Age, 1603-1714, 125–26. Routledge, 2013. http://dx.doi.org/10.4324/9780203390139-16.

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Duckworth, Douglas S. "Radical Phenomenology." In Tibetan Buddhist Philosophy of Mind and Nature, 117–52. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780190883959.003.0006.

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This chapter considers tantra, and the contemplative practices in Tibet informed by Mind-Only and Madhyamaka, where language plays a more explicitly creative and liberating role. Tantric traditions, including the Great Perfection and Mahāmudrā, resonate deeply with Mind-Only. In significant ways, these traditions can even be said to be iterations of Yogācāra, as extensions of its contemplative (yoga) practice (ācāra). This chapter discusses the “radical phenomenology” of these traditions, as extensions of Mind-Only. It describes how the guiding principle of emptiness, a Madhyamaka forte, is embedded in these traditions as well. Indeed, the “three greats” of the Great Madhyamaka, the Great Seal (Mahāmudrā), and the Great Perfection explicitly incorporate features of Madhayamaka.
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"‘Creatio Regni’ in the Great Seal of Bosnian King Tvrtko Kotromanić." In A Companion to Seals in the Middle Ages, 264–76. BRILL, 2019. http://dx.doi.org/10.1163/9789004391444_012.

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Olson, Lester C. "Franklin on national character and the Great Seal of the United States." In The Cambridge Companion to Benjamin Franklin, 117–31. Cambridge University Press, 2009. http://dx.doi.org/10.1017/ccol9780521871341.010.

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Conference papers on the topic "Great Seal"

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Pugachev, Alexander O., and Martin Deckner. "CFD Prediction and Test Results of Stiffness and Damping Coefficients for Brush-Labyrinth Gas Seals." In ASME Turbo Expo 2010: Power for Land, Sea, and Air. ASMEDC, 2010. http://dx.doi.org/10.1115/gt2010-22667.

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This paper presents ongoing investigations on calculation and measurement of rotordynamic coefficients for brush-labyrinth gas seals. The seals are tested on static and dynamic test rigs to measure leakage, pressure distribution, and seal specific forces. To predict seal performance a full three-dimensional eccentric CFD model is considered. Rotordynamic coefficients are calculated using the whirling rotor method. The bristle pack of the brush seal is modeled using the porous medium approach. The prediction results show some deviations in absolute values of stiffness and damping coefficients in comparison with the experimental values, but the trends are similar. Comparing with a staggered labyrinth seal, the brush seal improves rotordynamic characteristics in most cases. Position of the brush seal in sealing configuration has a great influence on the stiffness and damping coefficients, while leakage performance remains relatively unaffected. The capability of the brush seal model based on the porous medium approach to predict rotordynamic coefficients is discussed.
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Kikuchi, Tsutomu, and Ryoji Ogiso. "Weather Seal Design for Pipe Flanges." In ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/pvp2006-icpvt-11-93195.

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A weather seal is constructed in order to prevent the risk of high temperature flanges leaking during rain, for example, due to a temperature difference between the flanges and their bolts. From the point of view of saving energy, an adequate scal is essential to reduce the amount of heat that dissipates from the flange. However, the better the seal makes the greater the bolt temperature increase, and hence, the higher the risk of leakage. Thus there is a great demand for an optimal seal design.
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Moore, J. Jeffrey, and Thomas A. Soulas. "Damper Seal Comparison in a High-Pressure Re-Injection Centrifugal Compressor During Full-Load, Full-Pressure Factory Testing Using Direct Rotordynamic Stability Measurement." In ASME 2003 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/detc2003/vib-48458.

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Rotordynamic stability in high-pressure centrifugal compressors is of great concern to both the original equipment manufacturer (OEM) and the end-user, because of the potential for costly downtime should problems occur. To minimize these problems, damper seals have been developed to provide substantial damping to the rotor system. These seals are placed in the process gas at locations where large pressure differentials occur and contain relatively large lengths and diameters. Previous studies demonstrated the improvement provided by damper seals both analytically and with measurement during full-load, full-pressure testing (Moore, et al. [1]). The present study compares the damping and leakage control performance of two seal geometry, a hole pattern seal and a smooth seal. The smooth seal is intended to simulate a hole pattern seal that has “plugged up” because of contaminants in the process gas. The dimensions of the seals are identical in all other aspects. Two tests were performed using an eight-stage, back-to-back re-injection compressor as the test vehicle. The logarithmic decrement and seal leakage rates results are compared for the two seal designs. Analytical predictions are then compared with the measurements. The smooth seal demonstrates damping similar to the hole pattern design, but has a large leakage penalty.
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Weinberger, Tina, Klaus Dullenkopf, and Hans-Jo¨rg Bauer. "Influence of Honeycomb Facings on the Temperature Distribution of Labyrinth Seals." In ASME Turbo Expo 2010: Power for Land, Sea, and Air. ASMEDC, 2010. http://dx.doi.org/10.1115/gt2010-22069.

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As labyrinth seals with honeycomb facings become more usual, the present paper reveals part of the honeycomb parameters which have an influence on the temperature drop across the seal and the temperature distribution along the rotor and the stator. Numerical and first experimental analyses with varying honeycomb parameters, pressure ratios and seal clearances, typical for engine operating conditions, have been carried out on a non-rotating setup in order to exclude other influencing parameters, such as windage heating. As expected, the numerical analyse shows that the honeycomb diameter, the honeycomb height and the seal clearance are of great importance for the temperature distribution of the rotor and the stator and the temperature drop across the seal.
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Demiroglu, Mehmet, and John A. Tichy. "An Investigation of Heat Generation Characteristics of Brush Seals." In ASME Turbo Expo 2007: Power for Land, Sea, and Air. ASMEDC, 2007. http://dx.doi.org/10.1115/gt2007-28043.

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Brush seals are considered as a category of compliant seals, which tolerate a great high level of interference between the seal and the rotor or shaft. Their superior leakage characteristics have opened many application fields in the turbo-machinery world, ranging from industrial steam turbines to jet engines. However, brush seal designers have to find a trade-off between the lower parasitic leakage but higher heat generation properties of brush seals for given operation conditions. As brush seals can maintain contact with the rotor for a wide range of operating conditions, the contact force/pressure generated at the seal-rotor interface becomes an important design parameter for sustained seal performance and longevity of its service life. Furthermore, due to this contact force at the interface, frictional heat generation is inevitable and must be evaluated for various design and operating conditions. In this paper, frictional heat generation at the sealrotor interface is studied. To capture temperature rise at the interface, a thermal image of the seal and rotor is taken with an infrared camera under various operating conditions. The temperature map of the rotor is compared to results from thermal finite element analysis of the rotor to back calculate the heat flux to the rotor. A closed form equation for frictional heat generation is suggested as a function of seal design parameters, material properties, friction coefficient and empirical factors from testing.
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Kwanka, K. "Rotordynamic Impact of Swirl Brakes on Labyrinth Seals With Smooth or Honeycomb Stators." In ASME 1997 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/97-gt-232.

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The flow through labyrinth seals of turbomachinery generates forces which can cause self-excited vibrations of the rotor above the stability limit. The stability limit is reached at a specific rotating speed or power. The continuous growth in of power density and rotating speed necessitates an exact prediction of the stability limit of turbomachinery. Usually the seal forces are described with dynamic coefficients. A new, easy-to-handle identification procedure uses the stability behavior of a flexible rotor to determine the dynamic coefficients. Systematic measurements with a great number of labyrinth seal geometries lead to reasonable results and demonstrate the accuracy and sensitivity of the procedure. A comparison of the various methods used to minimize the excitation indicates which seal is more stable and will thus improve the dynamic behavior of the rotor.
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Wang, Yi, Colin Young, Guy Snowsill, and Tim Scanlon. "Study of Airflow Features Through Step Seals in the Presence of Dis-Engagement Due to Axial Movement." In ASME Turbo Expo 2004: Power for Land, Sea, and Air. ASMEDC, 2004. http://dx.doi.org/10.1115/gt2004-53056.

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Step seals are a particular design variant of the basic labyrinth seal configuration which is widely used to limit leakage from the space between rotating and stationary components. Seals of this type are employed in aero-engines to prevent oil leakage from bearing chambers and to control the flow of secondary cooling air and it follows that the design of step seals is of great importance in the achievement of optimal aero-engine performance. In this paper, numerical modelling of the flow through stepped seals has been carried out in order to gain an insight into the behaviour of the flow in the presence of dis-engagement. In the context of this work, dis-engagement would be deemed to have occurred when to the axial movement between the rotor and stator results in a clear line of sight through the step seal. The flows through the seals were calculated using the commercial CFD package Fluent and the numerical predictions were validated by comparison with test data previously presented in the literature. The model predictions were initially obtained using a number of alternative two-equation turbulence models and the RNG k-ε turbulence model with the non-equilibrium wall function was found to be in closest agreement with the measured data. It was noted that for a given radial clearance the step seal’s flow characteristic is largely dictated by the fin tip to step distance. It was found that there are two distinct stages of step seal dis-engagement. The first stage of dis-engagement occurs when the seal fin is displaced axially from its nominal position, but the seal fin still remains within the axial extent of the corresponding seal step. In this case the flow through the seal only deviates slightly from that of the fully engaged seal. The second stage occurs when the fin is subjected to a larger axial displacement and as a result assumes a position beyond the corresponding seal step. This results in a much larger seal clearance and the flow through the seal increases significantly with the fin tip to step distance in the case.
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Lei, Xie, Wang RuoNan, Liu Guang, Lian ZengYan, and Du Qiang. "Numerical Investigation on Unsteady Characteristics in Different Rim Seal Geometries: Part A." In ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/gt2020-14832.

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Abstract Secondary sealing flow is of great importance in the turbine disk cooling and sealing system. The amount of cooling air extracted from the compressor is crucial to engine efficiency. To determine a minimum amount of cooling air, the flow characteristic of the rim seal should be investigated. Numerical simulation is carried out to investigate the flow field near the rim seal region. Both RANS and URANS numerical simulation methods are used in the commercial CFD code ANSYS CFX to analyze axial and radial rim seals. In the simulation, a 1/33 sector is selected as computing region to simulate the flow field and the SST turbulent model is used. The steady and unsteady simulation results of pressure distribution and seal efficiency are analyzed and compared. The computed results show that due to the different geometry configuration, the pressure distribution also shows inconsistency. Unsteady phenomena are observed in both axial and radial type of rim seals. Radial sealing lip can suppress the inherent unsteadiness and interaction between main flow and sealing flow, thus showing higher sealing efficiency. Comparing to steady results using the RANS method; unsteady simulation, using the URANS method, can capture the pressure difference and seal efficiency fluctuation at the disk rim more efficiently. Also, the interaction between the rotor and stator is considered in unsteady simulation, so the unsteady simulation is recommended. The results obtained in the current paper are useful to the investigation and design of turbine rim seals.
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Beck, Douglas S. "The Effect of Seal Width on Regenerator Effectiveness." In ASME 1993 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1993. http://dx.doi.org/10.1115/93-gt-341.

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The effect of axial conduction on regenerator effectiveness has been studied in the past under the assumption of zero seal width. The effect of axial conduction coupled with finite seal width is presented. A method for calculating effectiveness assuming axial conduction and finite seal width is presented. Results of example calculations are presented to give the designer a feel for the dependence of seal-width effects on system-parameter values. It is shown that for typical regenerator designs, reductions in effectiveness due to axial conduction coupled with finite seal width can be twice as great as those due to axial conduction under the assumption of zero seal width. Also, it is shown that the required regenerator size to achieve a given effectiveness can increase dramatically when finite seal width is considered in design procedures. It is concluded that consideration of axial conduction should include finite seal width.
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Pandit, Rajeev Kumar, and Luca Innocenti. "Computational Analysis of Abradable Seal: Part 1." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-94085.

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The usage of abradable seals in the secondary flow path of centrifugal compressors is very high whenever higher efficiency is the main requirement. This is due to the fact that when compared with other sealing technologies the rubbing of teeth into the abradable material allows for the formation of grooves that result in very tight clearances between static and rotating components. Flow physics and mass flow leakage through abradable seals are strongly dependent on the presence of these grooves and their respective shapes. For cases where no grooves are formed, the seal leakage is mainly a function of inlet pressure, pressure ratio across the seal and tooth radial clearance. Once grooves are formed, the flow physics and seal leakage are also a function of groove dimensions and tooth axial position inside the groove. The scope of this paper is to present results obtained from an extended numerical campaign that was performed to understand the effect of groove formation and teeth position on seal leakages. Computation Fluid Dynamics (CFD) was used to study these effects. To achieve higher accuracy of numerical results, all key parameters in CFD such as mesh topology, grid independence, y+ criterion and turbulence model were studied in great detail. In cases where no grooves are present, the vena contracta (the narrowest point of the carry-over jet) is observed across the first tooth and its effect on flow physics at higher tooth gap is highlighted in this paper. For cases where grooves are present, it is seen that the flow field strongly depends on the following parameters: 1. Groove dimensions (e.g. depth and width), 2. Tooth radial clearance and 3. Tooth axial position inside groove. The impact of all the above parameters on seal leakage have been discussed and described in this paper. Finally, seal leakages are compared for grooved geometry with respective non-grooved geometry cases (in terms of tooth radial clearance). In the second part of the paper, the accuracy of CFD results is verified with available experimental data. For judicious comparison, geometrical specifications of all components and boundary conditions in CFD model and experimental setup were maintained very closely.
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Reports on the topic "Great Seal"

1

Trommelen, M. S., and J. E. Campbell. Surficial geology, Great Island - Seal River, Manitoba. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2012. http://dx.doi.org/10.4095/288955.

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McCurdy, M. W., C. O. Böhm, J. E. Campbell, S. J. A. Day, and R J McNeil. Regional lake sediment geochemical data, Great Island - Seal River area, Manitoba (NTS 54L, 54M, 64I, 64P). Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2010. http://dx.doi.org/10.4095/287186.

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Fortin, R., M. Coyle, J. M. Carson, and F. Kiss. Geophysical Series, NTS 64 P/03, airborne geophysical survey of the Great Island and Seal River area, Manitoba. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2009. http://dx.doi.org/10.4095/247454.

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Fortin, R., M. Coyle, J. M. Carson, and F. Kiss. Geophysical Series, NTS 64 P/02, airborne geophysical survey of the Great Island and Seal River area, Manitoba. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2009. http://dx.doi.org/10.4095/247455.

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Fortin, R., M. Coyle, J. M. Carson, and F. Kiss. Geophysical Series, NTS 64-I/15, airborne geophysical survey of the Great Island and Seal River area, Manitoba. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2009. http://dx.doi.org/10.4095/247458.

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Fortin, R., M. Coyle, J. M. Carson, and F. Kiss. Geophysical Series, NTS 64-I/14, airborne geophysical survey of the Great Island and Seal River area, Manitoba. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2009. http://dx.doi.org/10.4095/247459.

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Fortin, R., M. Coyle, J. M. Carson, and F. Kiss. Geophysical Series, NTS 64-I/11, airborne geophysical survey of the Great Island and Seal River area, Manitoba. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2009. http://dx.doi.org/10.4095/247460.

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Fortin, R., M. Coyle, J. M. Carson, and F. Kiss. Geophysical Series, NTS 64-I/10, airborne geophysical survey of the Great Island and Seal River area, Manitoba. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2009. http://dx.doi.org/10.4095/247461.

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Fortin, R., M. Coyle, J. M. Carson, and F. Kiss. Geophysical Series, NTS 64-I/07, airborne geophysical survey of the Great Island and Seal River area, Manitoba. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2009. http://dx.doi.org/10.4095/247463.

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Fortin, R., M. Coyle, J. M. Carson, and F. Kiss. Geophysical Series, NTS 64-I/06, airborne geophysical survey of the Great Island and Seal River area, Manitoba. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2009. http://dx.doi.org/10.4095/247464.

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