Academic literature on the topic 'University of California, Berkeley. Language Laboratory'
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Journal articles on the topic "University of California, Berkeley. Language Laboratory"
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Quistad, Gary. "Environmental Chemistry and Toxicology Laboratory, University of California at Berkeley." Pesticide Outlook 11, no. 4 (2000): 135–37. http://dx.doi.org/10.1039/b006237p.
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King, Wayne. "Introduction: Frontiers of Electron Microscopy in Materials Science." Microscopy and Microanalysis 11, no. 5 (September 28, 2005): 377. http://dx.doi.org/10.1017/s1431927605050725.
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The Ninth Frontiers of Electron Microscopy in Materials Science Conference (FEMMS 2003) was held October 5–10, 2003 at the Claremont Resort and Spa in Berkeley, CA. Major sponsors for this meeting included Lawrence Livermore National Laboratory, Argonne National Laboratory, Lawrence Berkeley National Laboratory, Brookhaven National Laboratory, Frederick Seitz Materials Research Laboratory, Oak Ridge National Laboratory, National Science Foundation, and University of California at Davis. Sponsors also included LEO Electron Microscopy Ltd. (Carl Zeiss SMT), E. A. Fischione, Inc., Gatan, Inc., Thermo NORAN (Thermo Electron Corp.), FEI Company, Hitachi-HHTA, JEOL USA, Inc., Seiko Instruments, and CEOS GmbH.
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Spence, Justin. "California Indian Languages. By Victor Golla. Berkeley: University of California Press, 2011. Pp. 379. $90.00." International Journal of American Linguistics 79, no. 3 (July 2013): 439–41. http://dx.doi.org/10.1086/670926.
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Gianni Falvo, Perla. "Conversation with Vittorio Gallese about empathy and aesthetic experience." Studies in Digital Heritage 2, no. 1 (December 28, 2018): XXX—XLVII. http://dx.doi.org/10.14434/sdh.v2i1.27926.
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Vittorio Gallese is professor of Psychobiology at the University of Parma, Italy, and was professor in Experimental Aesthetics at the University of London, UK (2016-2018). He is an expert in neurophysiology, cognitive neuroscience, social neuroscience, and philosophy of mind. Gallese is one of the discoverers of mirror neurons. Gallese has been doing research at the University of Lausanne, Switzerland, at the Nihon University, Tokyo, Japan, at the University of California at Berkeley and at the Berlin School of Mind and Brain of the Humboldt University of Berlin. He has been George Miller visiting professor at the University of California at Berkeley. His research attempts to elucidate the functional organization of brain mechanisms underlying social cognition, including action understanding, empathy, language, mindreading and aesthetic experience.
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Gilman, John J. "Up Close: Center for Advanced Materials at Lawrence Berkeley Laboratory." MRS Bulletin 11, no. 4 (August 1986): 27. http://dx.doi.org/10.1557/s0883769400069153.
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The boundaries between the present performance of materials and the requirements of device designers have for centuries been moving forward. The steps taken to draw these two together are sometimes large; more often they are small. As they occur, we find materials that are stronger, have larger magnetic moments, have higher electron mobilities, etc. Each time the property profile improves, understanding of the physical and chemical properties advances, and new engineering devices based on the improved profile are invented and developed.The purpose of the Center for Advanced Materials (CAM) at the Lawrence Berkeley Laboratory (LBL) is to enhance the inter-play between advances in the property profiles of materials and advances in the chemical and physical understanding of them. For this purpose, the location of CAM can be described as ideal. The proximity of this national laboratory to the campus of the University of California at Berkeley provides an unusually rich intellectual setting for the Center. It also provides unique opportunities for the University students and faculty who conduct materials-related research. Indeed, the arrangement should be a model for similar organizations, and it represents a solid method for strengthening materials science and technology throughout the nation.National policy in critical materials has given the national laboratories—including LBL—strong direction and incentive to collaborate with industry and the research universities. This incentive led to the establishment of CAM in order to build on the symbiosis between LBL and the University of California at Berkeley. It strives to extend this symbiosis by bringing industry into the ongoing educational process and by making its special facilities more readily available to industrial researchers.
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Fillmore, Charles, and Jens Allwood. "Fillmore on Language Teaching." Moderna Språk 84, no. 2 (November 13, 1990): 105–13. http://dx.doi.org/10.58221/mosp.v84i2.10420.
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26-29 mars 1990 gästades Göteborgs universitet av professor Charles Fillmore från University of California at Berkeley. Fillmore, som är en av världens mest namnkunninga lingvister, hade inbjudits att hålla de första föreläsningarna i den nya serien "The Gustaf Stern Memorial Lectures on Semantics". I samband med besöket gjorde den göteborgske lingvistikprofessorn Jens Allwood för Moderna språks räkning denna intervju med Fillmore om språkundervisning, ett ämne som inte tillhör Fillmores normala arbetsfält.
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de Fontaine, Didier. "From Gibbsian Thermodynamics to Electronic Structure: Nonempirical Studies of Alloy Phase Equilibria." MRS Bulletin 21, no. 8 (August 1996): 16–25. http://dx.doi.org/10.1557/s0883769400035661.
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The following is an edited version of the David Turnbull Lectureship address, given by recipient Didier R. de Fontaine at the 1995 MRS Fall Meeting, De Fontaine received the lectureship “in recognition of fundamental contributions and insights in the fields of order/disorder phenomena in materials and computational techniques for phase diagrams.” De Fontaine is a professor in the Department of Materials Science and Mineral Engineering at the University of California—Berkeley and holds a joint appointment with the Lawrence Berkeley National Laboratory.
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Slive, Daniel J. "EXIT INTERVIEW: HENRY SNYDER." RBM: A Journal of Rare Books, Manuscripts, and Cultural Heritage 2, no. 1 (March 1, 2001): 73–92. http://dx.doi.org/10.5860/rbm.2.1.194.
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Henry Snyder was born in Hayward, California in 1929 and did his undergraduate and graduate work at the University of California, Berkeley, receiving his PhD in history in 1963. He has taught and held administrative positions at University of Kansas, Louisiana State University, and University of California, Riverside. He has been director of the North American English Short-Title Catalogue (ESTC) project since 1978. In that time, the project has expanded from its original focus on eighteenth-century imprints to include records for letterpress items in any language printed between 1473 and 1800 in England or any of its dependencies, and works . . .
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Stairs, Arlene, Margaret Peters, and Elizabeth Perkins. "Beyond Language in Indigenous Language Immersion Schooling." Practicing Anthropology 21, no. 2 (April 1, 1999): 44–47. http://dx.doi.org/10.17730/praa.21.2.r0ul4372gq57t1w0.
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At the outset I (Stairs) want to describe my relationship to the indigenous educators with whom I work and the nature of the account which follows. I have worked with the Mohawk community and school which focuses this paper over many years as consultant, researcher, resource provider, among other forms of being there, but most centrally as co-reflector with several key "culture-makers" I have come to know. Our co-reflections share these culture-makers' visions of what Mohawk life and education is and might be. Whatever I re-present of our sharings is to be seen, as Rabinow and Sullivan note in their 1987 volume Interpretive Social Science (Berkeley: University of California Press), as "interpretations of interpretations" on my part, not positivistic description or assumption of insiders' voices.
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Hendlin, Yogi Hale. "Meeting Report: the 18th Annual Biosemiotics Gathering at the University of California, Berkeley." Biosemiotics 12, no. 2 (May 3, 2019): 195–96. http://dx.doi.org/10.1007/s12304-019-09359-7.
Full textBooks on the topic "University of California, Berkeley. Language Laboratory"
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1935-, Myers William D., Nitschke Michael, and Norman E. B. 1951-, eds. Proceedings of the First International Conference on Radioactive Nuclear Beams: 16-18 October 1989, University of California at Berkeley, Lawrence Berkeley Laboratory, Berkeley, California. Singapore: World Scientific, 1990.
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Dutch Linguistics Colloquium (1985 University of California, Berkeley). Dutch linguistics at Berkeley: Papers presented at the Dutch Linguistics Colloquium held at the University of California, Berkeley, on November 9th, 1985. Berkeley, Calif: Dutch Studies Program, U.C. Berkeley, 1986.
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Heilbron, J. L. Lawrence and his laboratory: A history of the Lawrence Berkeley Laboratory. Berkeley: University of California Press, 1989.
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Tom, Hayden, California. Legislature Assembly Subcommittee on Higher Education., and Legislative Symposium on the University of California Weapons Labs (1988 : Berkeley, Calif.), eds. Management of the University of California nuclear weapons labs: Edited transcripts from a legislative symposium, Berkeley, California, December 12, 1988. Sacramento, CA: Joint Publications Office, 1988.
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Commission, California Postsecondary Education. Commission comments on the systems' preliminary funding gap reports: A report to the legislature and governor in response to supplemental report language of the 1991 Budget Act. Sacramento, Calif: California Postsecondary Education Commission, 1992.
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Calif.) Stabilizing Indigenous Languages Symposium (11th 2004 Berkely. Languages in life: Proceedings of the 11th Annual Stabilizing Indigenous Languages Conference, June 10-13, 2004, University of California at Berkeley. Edited by Leonard Wesley Y and Gardner Stelómethet Ethel B. [Berkeley, Calif.]: Survey of California and Other Indian Languages, 2009.
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A, Blakely Eleanor, and Edington MarthaS, eds. Heavy charged particles in research and medicine: Proceedings of a symposium held at the Lawrence Berkeley Laboratory, University of California, Berkeley, California, May 1-3, 1985. San Diego: Academic Press, 1985.
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A, Blakely Eleanor, and Edington Martha S, eds. Heavy charged particles in research and medicine: Proceedings of a symposium held at the Lawrence Berkeley Laboratory, University of California, Berkeley, California, May 1-3, 1985. San Diego, Calif: Academic Press, 1985.
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California. Legislature. Senate. Committee on Health and Human Services. Forum on the involvement of the University of California in nuclear testing at Lawrence Livermore and Los Alamos National Laboratories: State Capitol, Room 4203, Sacramento, California, Wednesday, February 11, 1987, 10:10 a.m. Sacramento, CA: The Committee, 1987.
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Rezendes, Victor S. DOE management: Management problems at the three DOE laboratories operated by the University of California : statement of Victor S. Rezendes, Director, Energy Issues, Resources, Community, and Economic Development Division, before the Subcommittee on Investigations and Oversight, Committee on Science, Space, and Technology, House of Representatives. [Washington, D.C.]: The Office, 1991.
Find full textBook chapters on the topic "University of California, Berkeley. Language Laboratory"
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Hammond, Kenneth R. "The Organism and the Causal Texture of the Environment [1935]." In The Essential Brunswik, 15–34. Oxford University PressNew York, NY, 2001. http://dx.doi.org/10.1093/oso/9780195130133.003.0002.
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Abstract Edward C. Tolman, then perhaps the outstanding academic psychologist in the United States, and chairman of the psychology department at the University of California at Berkeley, spent part of his 1933-1934 sabbatical in Vienna. There he met Egon Brunswik, an assistant in Karl Buhler’s laboratory, and discovered they were kindred souls. They found that “our previous separate investigations had led us quite independently of one another to a common point of view as to the general nature of psychology.” That discovery led Tolman to invite Brunswik to spend the next year (1935-1936) in Berkeley.
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Mack, Arien, and Irvin Rock. "Inattentional Blindness: Perception without Attention." In Visual Attention, 55–76. Oxford University PressNew York, NY, 1998. http://dx.doi.org/10.1093/oso/9780195126938.003.0003.
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Abstract This chapter summarizes a body of research done over the last five years in both the perception laboratory at the New School for Social Re search in New York and in Irvin Rock’ s laboratory at the University of California, Berkeley. The majority of the research to be described here concerns a phenomenon we have named Inattentional Blindness (IB), which literally forced itself on our attention while we were studying perception under conditions of inattention. We begin by briefly summarizing some of the research that caused us to pay attention to 1B in the first place. This research project began as an attempt to determine: (1) whether grouping by Gestalt principles of organization occurred without attention, which most investigators have assumed to be the case (e.g., Treisman, 1982), and (2) whether the features which others have found to pop out when searched for in otherwise homogeneous arrays also were perceived under conditions of inattention. Because pop-out has been taken as an indicator of preattentive processing (e.g., Treisman & Gelade, 1980), we conjectured that most people, if asked, would assume that these features, too, would be perceived without attention.
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Taber, Douglass F. "Organocatalyzed C–C Ring Construction: The Mihovilovic Synthesis of Piperenol B." In Organic Synthesis. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190646165.003.0072.
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M. Kevin Brown of Indiana University prepared (J. Am. Chem. Soc. 2015, 137, 3482) the cyclobutane 3 by the organocatalyzed addition of 2 to the alkene 1. Karl Anker Jørgensen of Aarhus University assembled (J. Am. Chem. Soc. 2015, 137, 1685) the complex cyclobutane 7 by the addition of 5 to the acceptor 4, followed by condensation with the phosphorane 6. Zhi Li of the National University of Singapore balanced (ACS Catal. 2015, 5, 51) three enzymes to effect enantioselective opening of the epoxide 8 followed by air oxidation to 9. Gang Zhao of the Shanghai Institute of Organic Chemistry and Zhong Li of the East China University of Science and Technology added (Org. Lett. 2015, 17, 688) 10 to 11 to give 12 in high ee. Akkattu T. Biju of the National Chemical Laboratory combined (Chem. Commun. 2015, 51, 9559) 13 with 14 to give the β-lactone 15. Paul Ha-Yeon Cheong of Oregon State University and Karl A. Scheidt of Northwestern University reported (Chem. Commun. 2015, 51, 2690) related results. Dieter Enders of RWTH Aachen University constructed (Chem. Eur. J. 2015, 21, 1004) the complex cyclopentane 20 by the controlled combination of 16, 17, and 18, followed by addition of the phosphorane 19. Derek R. Boyd and Paul J. Stevenson of Queen’s University Belfast showed (J. Org. Chem. 2015, 80, 3429) that the product from the microbial oxidation of 21 could be protected as the acetonide 22. Ignacio Carrera of the Universidad de la República described (Org. Lett. 2015, 17, 684) the related oxidation of benzyl azide (not illustrated). Manfred T. Reetz of the Max-Planck-Institut für Kohlenforschung and the Philipps-Universität Marburg found (Angew. Chem. Int. Ed. 2014, 53, 8659) that cytochrome P450 could oxidize the cyclohexane 23 to the cyclohexanol 24. F. Dean Toste of the University of California, Berkeley aminated (J. Am. Chem. Soc. 2015, 137, 3205) the ketone 25 with 26 to give 27. Benjamin List, also of the Max-Planck-Institut für Kohlenforschung, reported (Synlett 2015, 26, 1413) a parallel investigation. Philip Kraft of Givaudan Schweiz AG and Professor List added (Angew. Chem. Int. Ed. 2015, 54, 1960) 28 to 29 to give 30 in high ee.
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Lucarelli, Rita. "From Virtual Reality to virtual restitution: How 3D-Egyptology can contribute to decolonizing the field and the question of digital copies vs the original." In Can’t Touch This: Digital Approaches to Materiality in Cultural Heritage, 165–81. Ubiquity Press, 2023. http://dx.doi.org/10.5334/bcv.i.
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3D digital and printed replicas of various ancient Egyptian antiquities, from statues and busts to coffins, stelas and other magical objects, are becoming increasingly popular on the web as well as in museums, but some issues and challenges related to replicas and copies in the study and fruition of the ancient Egyptian heritage remain, which include difficult questions of intellectual property rights and accessibility of the virtual platforms where the replicas are shared. The 3D models of the ancient Egyptian coffins produced for the “Book of the Dead in 3D” project housed at the University of California, Berkeley, will be taken as a case-study to analyze and discuss those issues. Given the importance of annotations on 3D models of an inscribed artifact such as an ancient Egyptian coffin, this article will also discuss the materiality of the text and its digital reproduction, and how the metadata of a historical object and its text decoration need to be produced “responsibly” and according to museum ethics, to ensure sustainability and access in the language of origin of the artifact. The issue of “decolonization” will be analyzed in relation to the use of Virtual and Augmented Reality in the digital reconstructions of archaeological sites, monuments, and artifacts in Egypt, through examples of VR apps such as “From the Museum to the Tomb”, a joint project of UC Berkeley and UC Santa Cruz, where a 26th Dynasty’s stone sarcophagus is virtually replaced in his tomb and analyzed in its original ritual space.
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Seltzer, Robert M. "O. O. Gruzenberg. Yesterday: Memoirs of a Russian-Jewish Lawyer. Edited by Don C. Rawson. Berkeley: University of California Press. 1981. Pp. xxx, 235." In Polin: Studies in Polish Jewry Volume 1, 369–70. Liverpool University Press, 2004. http://dx.doi.org/10.3828/liverpool/9781904113171.003.0038.
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This chapter discusses O. O. Gruzenberg's Yesterday: Memoirs of a Russian-Jewish Lawyer (1981). This book is a nostalgic reminiscence of selected episodes from the life of Oskar Gruzenberg (1866–1940), a noted Russian-Jewish attorney whose courtroom successes in a wide range of political trials during the last two decades of the tsarist regime culminated in his brilliant defence of Mendel Beiliss in the notorious 1913 ritual murder trial in Kiev. Gruzenberg recounts scenes of his youth and of legal dramas in which he was a participant. He also describes some of the well-known writers he knew and relates several successful interventions with Russian bureaucrats during World War I in order to avert miscarriages of justice. Gruzenberg comes across in these memoirs as a skilful lawyer, eloquent advocate, humanitarian liberal, and passionate lover of the Russian language and literature.
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Colby, Jason M. "A Boy and His Whale." In Orca. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190673093.003.0010.
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It was february 1966, and Richard Stroud had seal sex on his mind. A recent graduate of Oregon State University, the Portland-born Stroud had taken a job at the Marine Mammal Biological Laboratory in Seattle. For one of his first field assignments, he had come to Morro Bay to study the reproduction of northern fur seals in their wintering area off the California coast. The primary focus of the lab, which was still administered by the US Fish and Wildlife Service, remained the fur seal harvest on the Pribilof Islands, and its scientists retained close ties to US whaling firms, often chartering their vessels for research. For this seventy-day expedition, Stroud and his colleagues hired the 136-foot whaler Lynnann for the purpose of shooting and dissecting five hundred fur seals under the terms of the 1957 treaty. Stroud also had instructions to kill and examine killer whales when possible. So when the Lynnann passed six orcas off Morro Bay just before noon on February 12, he asked Captain Roy J. “Bud” Newton to follow them. Ordinarily, Newton wouldn’t have bothered with killers. His employer, the Del Monte Fishing Company, focused on fin, sperm, and humpback whales. Located in Richmond, a short drive from Berkeley, the station processed nearly two hundred whales per year. But the whaling season was months away, and the US government was paying for this voyage. Newton wheeled the Lynnann around, and after an hour-long chase, his crew harpooned and killed a large male killer whale. Measuring just under twenty-one feet, it was a healthy specimen, though its teeth seemed unusually worn. Stroud planned to examine the orca’s stomach contents and send its skull and organs to the Seattle lab. Yet he chose not to dissect the carcass in port. Instead, as one reporter explained, Stroud and his fellow researchers “planned to butcher their killer whale Sunday while far out at sea.” The reasons for this decision are unclear. Perhaps they hoped to spare Morro Bay residents the stench of orca innards.
Conference papers on the topic "University of California, Berkeley. Language Laboratory"
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Kirz, Janos. "Soft-x-ray microscopy at the National Synchrotron Light Source." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1990. http://dx.doi.org/10.1364/oam.1990.tumm3.
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The absorption edges of important light elements (C,N,O) fall in the soft x-ray range. Consequently, with proper choice of the beam energy one can penetrate relatively thick specimens or ionize the core level of an atom on the surface. The recently commissioned soft x-ray undulator at the NSLS is a bright and tuneable source of 200800 eV radiation. Teams from the NSLS, Lawrence Berkeley Laboratory, IBM, the University of California at San Francisco, and the State University of New York-Stony Brook have been using it to develop several forms of microimaging, including scanning transmission microscopy, scanning photoemission microscopy, holography and diffraction. Coherently illuminated zone plates1 are used to form microprobes for scanning and as a source of spherical reference waves in Fourier transform holography. Three of the instruments have achieved resolutions in the 5070 nm range. Applications in biology include the study of whole cells and organelles, while work in surface science is just beginning to address the important problems of radiation-sensitive heterogeneous materials.
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El-Gindy, Moustafa, Heidi L. Lewis, and A. Scott Lewis. "Development of a Tire/Pavement Contact-Stress Model Based on an Artificial Neural Network." In ASME 1999 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/imece1999-0330.
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Abstract This paper presents comprehensive tire/pavement contact-stress models based on the Artificial Neural Networks developed by the authors at the Pennsylvania Transportation Institute and Applied Research Laboratory of the Pennsylvania State University. These models represent the first mathematical representation of measured, vertical contact stress at wide ranges of vertical loads and inflation pressures for two types of tires. The Developed ANN model has the capabilities to generate complex stress distribution patterns under a tire at any given load and inflation pressure for a specific tire type used for the ANN training. The information given here is considered to be an important contribution to the ongoing efforts to improve tire/pavement contact stress modeling and analysis. The neural network representation of a tire contact stress distribution is denoted as “Neuro-Patch Model”. The neural network models have been trained using precisely measured, three-dimensional contact-stress distribution patterns obtained from low speed rolling tire tests conducted by the University of California at Berkeley. This data has been supplied by the Federal Highway Administration (FHWA). In this study two types of tires, namely a 11R22.5 Radial-Ply and a 10.00 × 20 Bias-Ply truck tire, were modeled at different inflation pressures ranging from 520 kPa to 920 kPa and vertical loads ranging from 26 kN to 56 kN.
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Tom, Nathan, Daewoong Son, Valentin Belissen, and Ronald W. Yeung. "Modeling of a Permanent Magnet Linear Generator for Wave-Energy Conversion." In ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/omae2015-42370.
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This paper begins with a brief review of the equation of motion for a generic floating body with modification to incorporate the influence of a power-take-off (PTO) unit. Since the damping coefficient is considered the dominant contribution to the PTO reaction force, the optimum non time-varying values are presented for all frequencies, recovering the well-known impedance-matching principle at the resonance condition of the coupled system. The construction of a laboratory-scale permanent magnet linear generator (PMLG), developed at the University of California at Berkeley, is discussed along with the basic electromagnetic equations used to model its performance. Modeling of the PMLG begins with a lumped magnetic circuit analysis, which provides an analytical solution to predict the magnetic flux available for power conversion. The voltage generated across each phase of the stator, induced by the motion of the armature, provides an estimate for the electromagnetic damping as a function of the applied resistive load. The performance of the PMLG and the validation of the proposed analytical model is completed by a set of dry-bench tests. Results from the bench test showed good agreement with the described electromechanical model, thus providing an analytical solution that can assist in further optimization of the PMLG.
Reports on the topic "University of California, Berkeley. Language Laboratory"
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Bray, Jonathan, Ross Boulanger, Misko Cubrinovski, Kohji Tokimatsu, Steven Kramer, Thomas O'Rourke, Ellen Rathje, Russell Green, Peter Robertson, and Christine Beyzaei. U.S.—New Zealand— Japan International Workshop, Liquefaction-Induced Ground Movement Effects, University of California, Berkeley, California, 2-4 November 2016. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, March 2017. http://dx.doi.org/10.55461/gzzx9906.
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There is much to learn from the recent New Zealand and Japan earthquakes. These earthquakes produced differing levels of liquefaction-induced ground movements that damaged buildings, bridges, and buried utilities. Along with the often spectacular observations of infrastructure damage, there were many cases where well-built facilities located in areas of liquefaction-induced ground failure were not damaged. Researchers are working on characterizing and learning from these observations of both poor and good performance. The “Liquefaction-Induced Ground Movements Effects” workshop provided an opportunity to take advantage of recent research investments following these earthquake events to develop a path forward for an integrated understanding of how infrastructure performs with various levels of liquefaction. Fifty-five researchers in the field, two-thirds from the U.S. and one-third from New Zealand and Japan, convened in Berkeley, California, in November 2016. The objective of the workshop was to identify research thrusts offering the greatest potential for advancing our capabilities for understanding, evaluating, and mitigating the effects of liquefaction-induced ground movements on structures and lifelines. The workshop also advanced the development of younger researchers by identifying promising research opportunities and approaches, and promoting future collaborations among participants. During the workshop, participants identified five cross-cutting research priorities that need to be addressed to advance our scientific understanding of and engineering procedures for soil liquefaction effects during earthquakes. Accordingly, this report was organized to address five research themes: (1) case history data; (2) integrated site characterization; (3) numerical analysis; (4) challenging soils; and (5) effects and mitigation of liquefaction in the built environment and communities. These research themes provide an integrated approach toward transformative advances in addressing liquefaction hazards worldwide. The archival documentation of liquefaction case history datasets in electronic data repositories for use by the broader research community is critical to accelerating advances in liquefaction research. Many of the available liquefaction case history datasets are not fully documented, published, or shared. Developing and sharing well-documented liquefaction datasets reflect significant research efforts. Therefore, datasets should be published with a permanent DOI, with appropriate citation language for proper acknowledgment in publications that use the data. Integrated site characterization procedures that incorporate qualitative geologic information about the soil deposits at a site and the quantitative information from in situ and laboratory engineering tests of these soils are essential for quantifying and minimizing the uncertainties associated site characterization. Such information is vitally important to help identify potential failure modes and guide in situ testing. At the site scale, one potential way to do this is to use proxies for depositional environments. At the fabric and microstructure scale, the use of multiple in situ tests that induce different levels of strain should be used to characterize soil properties. The development of new in situ testing tools and methods that are more sensitive to soil fabric and microstructure should be continued. The development of robust, validated analytical procedures for evaluating the effects of liquefaction on civil infrastructure persists as a critical research topic. Robust validated analytical procedures would translate into more reliable evaluations of critical civil infrastructure iv performance, support the development of mechanics-based, practice-oriented engineering models, help eliminate suspected biases in our current engineering practices, and facilitate greater integration with structural, hydraulic, and wind engineering analysis capabilities for addressing multi-hazard problems. Effective collaboration across countries and disciplines is essential for developing analytical procedures that are robust across the full spectrum of geologic, infrastructure, and natural hazard loading conditions encountered in practice There are soils that are challenging to characterize, to model, and to evaluate, because their responses differ significantly from those of clean sands: they cannot be sampled and tested effectively using existing procedures, their properties cannot be estimated confidently using existing in situ testing methods, or constitutive models to describe their responses have not yet been developed or validated. Challenging soils include but are not limited to: interbedded soil deposits, intermediate (silty) soils, mine tailings, gravelly soils, crushable soils, aged soils, and cemented soils. New field and laboratory test procedures are required to characterize the responses of these materials to earthquake loadings, physical experiments are required to explore mechanisms, and new soil constitutive models tailored to describe the behavior of such soils are required. Well-documented case histories involving challenging soils where both the poor and good performance of engineered systems are documented are also of high priority. Characterizing and mitigating the effects of liquefaction on the built environment requires understanding its components and interactions as a system, including residential housing, commercial and industrial buildings, public buildings and facilities, and spatially distributed infrastructure, such as electric power, gas and liquid fuel, telecommunication, transportation, water supply, wastewater conveyance/treatment, and flood protection systems. Research to improve the characterization and mitigation of liquefaction effects on the built environment is essential for achieving resiliency. For example, the complex mechanisms of ground deformation caused by liquefaction and building response need to be clarified and the potential bias and dispersion in practice-oriented procedures for quantifying building response to liquefaction need to be quantified. Component-focused and system-performance research on lifeline response to liquefaction is required. Research on component behavior can be advanced by numerical simulations in combination with centrifuge and large-scale soil–structure interaction testing. System response requires advanced network analysis that accounts for the propagation of uncertainty in assessing the effects of liquefaction on large, geographically distributed systems. Lastly, research on liquefaction mitigation strategies, including aspects of ground improvement, structural modification, system health monitoring, and rapid recovery planning, is needed to identify the most effective, cost-efficient, and sustainable measures to improve the response and resiliency of the built environment.
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Wong, Ivan, Patricia Thomas, and Paul Somerville. Updated Probabilistic and Deterministic Seismic Hazard Analyses for the University of California, Berkeley and Lawrence Berkeley National Laboratory. Office of Scientific and Technical Information (OSTI), May 2009. http://dx.doi.org/10.2172/961840.
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Schiller, Brandon, Tara Hutchinson, and Kelly Cobeen. Comparison of the Response of Small- and Large-Component Cripple Wall Specimens Tested under Simulated Seismic Loading (PEER-CEA Project). Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, November 2020. http://dx.doi.org/10.55461/iyca1674.
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This report is one of a series of reports documenting the methods and findings of a multi-year, multi-disciplinary project coordinated by the Pacific Earthquake Engineering Research Center (PEER and funded by the California Earthquake Authority (CEA). The overall project is titled “Quantifying the Performance of Retrofit of Cripple Walls and Sill Anchorage in Single-Family Wood-Frame Buildings,” henceforth referred to as the “PEER–CEA Project.” The overall objective of the PEER–CEA Project is to provide scientifically based information (e.g., testing, analysis, and resulting loss models) that measure and assess the effectiveness of seismic retrofit to reduce the risk of damage and associated losses (repair costs) of wood-frame houses with cripple wall and sill anchorage deficiencies as well as retrofitted conditions that address those deficiencies. Tasks that support and inform the loss-modeling effort are: (1) collecting and summarizing existing information and results of previous research on the performance of wood-frame houses; (2) identifying construction features to characterize alternative variants of wood-frame houses; (3) characterizing earthquake hazard and ground motions at representative sites in California; (4) developing cyclic loading protocols and conducting laboratory tests of cripple wall panels, wood-frame wall subassemblies, and sill anchorages to measure and document their response (strength and stiffness) under cyclic loading; and (5) the computer modeling, simulations, and the development of loss models as informed by a workshop with claims adjustors. This report is a product of Working Group 4: Testing, whose central focus was to experimentally investigate the seismic performance of retrofitted and existing cripple walls. Two testing programs were conducted; the University of California, Berkeley (UC Berkeley) focused on large-component tests; and the University of California San Diego (UC San Diego) focused on small-component tests. The primary objectives of the tests were to develop descriptions of the load-deflection behavior of components and connections for use by Working Group 5 in developing numerical models and collect descriptions of damage at varying levels of drift for use by Working Group 6 in developing fragility functions. This report considers two large-component cripple wall tests performed at UC Berkeley and several small-component tests performed at UC San Diego that resembled the testing details of the large-component tests. Experiments involved imposition of combined vertical loading and quasi-static reversed cyclic lateral load on cripple wall assemblies. The details of the tests are representative of era-specific construction, specifically the most vulnerable pre-1945 construction. All cripple walls tested were 2 ft high and finished with stucco over horizontal lumber sheathing. Specimens were tested in both the retrofitted and unretrofitted condition. The large-component tests were constructed as three-dimensional components (with a 20-ft 4-ft floor plan) and included the cripple wall and a single-story superstructure above. The small-component tests were constructed as 12-ft-long two-dimensional components and included only the cripple wall. The pairing of small- and large-component tests was considered to make a direct comparison to determine the following: (1) how closely small-component specimen response could emulate the response of the large-component specimens; and (2) what boundary conditions in the small-component specimens led to the best match the response of the large-component specimens. The answers to these questions are intended to help identify best practices for the future design of cripple walls in residential housing, with particular interest in: (1) supporting the realistic design of small-component specimens that may capture the response large-component specimen response; and (2) to qualitatively determine where the small-component tests fall in the range of lower- to upper-bound estimation of strength and deformation capacity for the purposes of numerical modelling. Through these comparisons, the experiments will ultimately advance numerical modeling tools, which will in turn help generate seismic loss models capable of quantifying the reduction of loss achieved by applying state-of-practice retrofit methods as identified in FEMA P-1100Vulnerability-Base Seismic Assessment and Retrofit of One- and Two-Family Dwellings. To this end, details of the test specimens, measured as well as physical observations, and comparisons between the two test programs are summarized in this report.
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Mosalam, Khalid, Amarnath Kasalanati, and Selim Gunay. PEER Annual Report 2017 - 2018. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, June 2018. http://dx.doi.org/10.55461/fars6451.
Full textAbstract:
The Pacific Earthquake Engineering Research Center (PEER) is a multi-institutional research and education center with headquarters at the University of California, Berkeley. PEER’s mission is to (1) develop, validate, and disseminate performance-based engineering (PBE) technologies for buildings and infrastructure networks subjected to earthquakes and other natural hazards, with the goal of achieving community resilience; and (2) equip the earthquake engineering and other extreme-event communities with the 21st -century tools that define the current digital revolution. This reports presents the activities of the Center over the period of July 1, 2017 to June 30, 2018. PEER staff, in particular Grace Kang, Erika Donald, Claire Johnson, Christina Bodnar-Anderson, and Zulema Lara, helped in preparation of this report. Key activities of the past academic year include the following: -Continuation of major projects such as Tall Building Initiative (TBI) and Next Generation Attenuation (NGA) projects, and start of work on the major project funded by the California Earthquake Authority (CEA). The TBI was completed in 2017, and NGA projects are nearing completion soon. -Addition of University of Nevada, Reno (UNR) as a core institution. -Re-establishment of the PEER Research Committee. -Issuing a Request for Proposal (RFP) from TSRP funds and funding 17 projects as a result of this RFP. Together with the ongoing projects, the total number of projects funded in 2017 is 24. -Organization of several workshops focused on Liquefaction, Structural Health Monitoring (SHM), High-Performance Computing (HPC), Bridge Component Fragility Development, Physics-Based Ground Motions, Hybrid Simulation, and Research Needs for Resilient Buildings. -Rollout of TBI seminars and HayWired activities as part of outreach. -Conducting a blind prediction contest with robust participation and instructive findings on current modeling approaches. -Organization of the PEER Annual Meeting with participation of 240 attendees -Continuing participation in board of directors of international organizations such as Global Alliance of Disaster Research Institutes (GADRI) and International Laboratory of Earthquake Engineering (ILEE). Going forward, PEER aims to hold more focused workshops, form new committees, and draw on existing resources and experience on PBE to systematically move towards Resilient Design for Extreme Events (RDEE).
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Cobeen, Kelly, Vahid Mahdavifar, Tara Hutchinson, Brandon Schiller, David Welch, Grace Kang, and Yousef Bozorgnia. Large-Component Seismic Testing for Existing and Retrofitted Single-Family Wood-Frame Dwellings (PEER-CEA Project). Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, November 2020. http://dx.doi.org/10.55461/hxyx5257.
Full textAbstract:
This report is one of a series of reports documenting the methods and findings of a multi-year, multi-disciplinary project coordinated by the Pacific Earthquake Engineering Research Center (PEER and funded by the California Earthquake Authority (CEA). The overall project is titled “Quantifying the Performance of Retrofit of Cripple Walls and Sill Anchorage in Single-Family Wood-Frame Buildings,” henceforth referred to as the “PEER–CEA Project.” The overall objective of the PEER–CEA Project is to provide scientifically based information (e.g., testing, analysis, and resulting loss models) that measure and assess the effectiveness of seismic retrofit to reduce the risk of damage and associated losses (repair costs) of wood-frame houses with cripple wall and sill anchorage deficiencies as well as retrofitted conditions that address those deficiencies. Tasks that support and inform the loss-modeling effort are: (1) collecting and summarizing existing information and results of previous research on the performance of wood-frame houses; (2) identifying construction features to characterize alternative variants of wood-frame houses; (3) characterizing earthquake hazard and ground motions at representative sites in California; (4) developing cyclic loading protocols and conducting laboratory tests of cripple wall panels, wood-frame wall subassemblies, and sill anchorages to measure and document their response (strength and stiffness) under cyclic loading; and (5) the computer modeling, simulations, and the development of loss models as informed by a workshop with claims adjustors. Quantifying the difference of seismic performance of un-retrofitted and retrofitted single-family wood-frame houses has become increasingly important in California due to the high seismicity of the state. Inadequate lateral bracing of cripple walls and inadequate sill bolting are the primary reasons for damage to residential homes, even in the event of moderate earthquakes. Physical testing tasks were conducted by Working Group 4 (WG4), with testing carried out at the University of California San Diego (UCSD) and University of California Berkeley (UCB). The primary objectives of the testing were as follows: (1) development of descriptions of load-deflection behavior of components and connections for use by Working Group 5 in development of numerical modeling; and (2) collection of descriptions of damage at varying levels of peak transient drift for use by Working Group 6 in development of fragility functions. Both UCSD and UCB testing included companion specimens tested with and without retrofit. This report documents the portions of the WG4 testing conducted at UCB: two large-component cripple wall tests (Tests AL-1 and AL-2), one test of cripple wall load-path connections (Test B-1), and two tests of dwelling superstructure construction (Tests C-1 and C-2). Included in this report are details of specimen design and construction, instrumentation, loading protocols, test data, testing observations, discussion, and conclusions.
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Schiller, Brandon, Tara Hutchinson, and Kelly Cobeen. Cripple Wall Small-Component Test Program: Wet Specimens II (PEER-CEA Project). Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, November 2020. http://dx.doi.org/10.55461/ldbn4070.
Full textAbstract:
This report is one of a series of reports documenting the methods and findings of a multi-year, multi-disciplinary project coordinated by the Pacific Earthquake Engineering Research Center (PEER and funded by the California Earthquake Authority (CEA). The overall project is titled “Quantifying the Performance of Retrofit of Cripple Walls and Sill Anchorage in Single-Family Wood-Frame Buildings,” henceforth referred to as the “PEER–CEA Project.” The overall objective of the PEER–CEA Project is to provide scientifically based information (e.g., testing, analysis, and resulting loss models) that measure and assess the effectiveness of seismic retrofit to reduce the risk of damage and associated losses (repair costs) of wood-frame houses with cripple wall and sill anchorage deficiencies as well as retrofitted conditions that address those deficiencies. Tasks that support and inform the loss-modeling effort are: (1) collecting and summarizing existing information and results of previous research on the performance of wood-frame houses; (2) identifying construction features to characterize alternative variants of wood-frame houses; (3) characterizing earthquake hazard and ground motions at representative sites in California; (4) developing cyclic loading protocols and conducting laboratory tests of cripple wall panels, wood-frame wall subassemblies, and sill anchorages to measure and document their response (strength and stiffness) under cyclic loading; and (5) the computer modeling, simulations, and the development of loss models as informed by a workshop with claims adjustors. This report is a product of Working Group 4 (WG4): Testing, whose central focus was to experimentally investigate the seismic performance of retrofitted and existing cripple walls. This report focuses stucco or “wet” exterior finishes. Paralleled by a large-component test program conducted at the University of California, Berkeley (UC Berkeley) [Cobeen et al. 2020], the present study involves two of multiple phases of small-component tests conducted at the University of California San Diego (UC San Diego). Details representative of era-specific construction, specifically the most vulnerable pre-1960s construction, are of predominant focus in the present effort. Parameters examined are cripple wall height, finish style, gravity load, boundary conditions, anchorage, and deterioration. This report addresses the third phase of testing, which consisted of eight specimens, as well as half of the fourth phase of testing, which consisted of six specimens where three will be discussed. Although conducted in different phases, their results are combined here to co-locate observations regarding the behavior of the second phase the wet (stucco) finished specimens. The results of first phase of wet specimen tests were presented in Schiller et al. [2020(a)]. Experiments involved imposition of combined vertical loading and quasi-static reversed cyclic lateral load onto ten cripple walls of 12 ft long and 2 or 6 ft high. One cripple wall was tested with a monotonic loading protocol. All specimens in this report were constructed with the same boundary conditions on the top and corners of the walls as well as being tested with the same vertical load. Parameters addressed in this report include: wet exterior finishes (stucco over framing, stucco over horizontal lumber sheathing, and stucco over diagonal lumber sheathing), cripple wall height, loading protocol, anchorage condition, boundary condition at the bottom of the walls, and the retrofitted condition. Details of the test specimens, testing protocol, including instrumentation; and measured as well as physical observations are summarized in this report. Companion reports present phases of the tests considering, amongst other variables, impacts of various boundary conditions, stucco (wet) and non-stucco (dry) finishes, vertical load, cripple wall height, and anchorage condition. Results from these experiments are intended to support advancement of numerical modeling tools, which ultimately will inform seismic loss models capable of quantifying the reduction of loss achieved by applying state-of-practice retrofit methods as identified in FEMA P-1100,Vulnerability-Base Seismic Assessment and Retrofit of One- and Two-Family Dwellings.
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Mosalam, Khalid, Amarnath Kasalanati, and Grace Kang. PEER Annual Report 2016. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, January 2017. http://dx.doi.org/10.55461/anra5954.
Full textAbstract:
The Pacific Earthquake Engineering Research Center (PEER) is a multi-institutional research and education center with headquarters at the University of California, Berkeley. PEER’s mission is to develop, validate, and disseminate performance-based seismic design technologies for buildings and infrastructure to meet the diverse economic and safety needs of owners and society. The year 2016 began with a change of leadership at PEER. On January 1, Professor Khalid Mosalam became the new PEER Director as Professor Stephen Mahin completed his 6- year term. Also in early 2016, Dr. Yousef Bozorgnia stepped down from the position of Executive Director, after serving as a key member of PEER’s management team for over 12 years. Several accomplishments of the Center during the leadership of Director Mahin were recounted during the PEER Annual Meeting on January 28–29, 2016. This meeting also set the course of the Center with several new thrust areas identified for future research. During the past year, PEER has continued its track record of multi-institutional research with several multi-year Mega-Projects. The PEER Tall Buildings Initiative (TBI) was recently expanded to include assessment of the seismic performance of existing tall buildings. The California Earthquake Authority (CEA) awarded a $3.4 million, 3.5-year research contract to PEER to investigate the seismic performance of wood-frame homes with cripple walls. The project will directly contribute to the improvement of seismic resiliency of California’s housing stock. Former Director Mahin will lead a broad effort for computational modeling and simulation (SimCenter) of the effects of natural hazards on the built environment. Supported by a 5-year, $10.9-million grant from the National Science Foundation (NSF), the SimCenter is part of the Natural Hazards Engineering Research Infrastructure (NHERI) initiative, a distributed, multi-user national facility that will provide natural hazards engineers with access to research infrastructure (earthquake and wind engineering experimental facilities, cyberinfrastructure, computational modeling and simulation tools, and research data), coupled with education and community outreach activities. In addition to the Mega Projects, PEER researchers were involved in a wide range of research activities in the areas of geohazards, tsunami, and the built environment focusing on the earthquake performance of old and new reinforced concrete and steel structures, tall buildings, and bridges including rapid bridge construction. As part of its mission, PEER participated in a wide range of education and outreach activities, including a summer internship program, seminars, OpenSees days, and participation in several national and international conferences. The Center became an active board member of two prominent international organizations, namely GADRI (Global Alliance of Disaster Research Institutes) and ILEE (International Laboratory of Earthquake Engineering). PEER researchers and projects were recognized with awards from several organizations. Going forward, PEER aims to improve the profile and external exposure of the Center globally, strengthen the Business-Industry-Partnership (BIP) program, engage the Institutional Board (IB) and the Industry Advisory Board (IAB) to identify new areas of research, and explore new funding opportunities.
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Technical safety appraisal of the Lawrence Berkeley Laboratory, University of California. Office of Scientific and Technical Information (OSTI), February 1990. http://dx.doi.org/10.2172/7262644.
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