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Academic literature on the topic 'Library of Congress. Hebraic Section'

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Journal articles on the topic "Library of Congress. Hebraic Section"

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Pearlstein, Peggy K. "The Hebraic Section of the Library of Congress: Collections, Catalogs and Services." Judaica Librarianship 2, no. 1-2 (January 1, 1986): 60–62. http://dx.doi.org/10.14263/2/1985/883.

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Haxen, Ulf G. "Rom – den hebraiske bogs vugge." Fund og Forskning i Det Kongelige Biblioteks Samlinger 56 (March 3, 2017): 79. http://dx.doi.org/10.7146/fof.v56i0.118929.

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Ulf G. Haxen: Rome – Cradle of the Hebrew Book The Royal Library in Copenhagen has, throughout the twentieth century, received two substantial collections of Hebraica and Judaica. In 1933 the library acquired the private library of chief rabbi and professor David Simonsen, which amounted to an impressive 40,000 manuscripts, books and correspondence of scholarly importance. Dr. Lazarus Goldschmidt escaped Nazi Germany in 1938 and managed to bring his 2,500 volumes of Hebraica and Judaica, including 43 immaculate and well preserved incunables, safely to London. His entire collection of rare Hebrew books was purchased by the Royal Library for a moderate sum in 1949 because Goldschmidt was “honoured to have his books incorporated in Bibliotheca Simonseniana.”Both scholars were recognised authorities in their own right, Simonsen as philologist in Semitics and specialist in Jewish booklore, and Goldschmidt as a renowned bibliophile and connoisseur of 15th century Hebraic incunables. His 46 rare incunables were eventually listed in Victor Madsen’s catalogue of incunables (1935–1963).The art of printing was born c.1455 in Mainz (Germany) with Johan Gutenberg’s printed edition of the bible. Among scholars it was generally believed that migrating Christian and Jewish apprentices carried the revolutionising “black art” of printing from Mainz to Spain and Italy. Coincidentally enough, the first two dated Hebrew works appeared in print thirty years after Gutenberg in the exact same year in southern and northern Italy respectively: these being the Rashi commentary on the Jewish bible issued 17th February 1475 in Reggia di Calabria and printed by Abraham Garton ben Isaac, and the Arba’ah turim in Piove di Sacco near Venezia published by Meshullam Cusi on 3rd July 1475.These two books were for a long time considered to be the first books printed with Hebrew types. The famous Christian scholar of Hebraica, Giambernardo de Rossi, who was the fortunate owner of the allegedly “first” cradle book from Reggia, subsequently published the first census of Hebrew incunables in Annales hebraica-typographica saeculi XV (1795). The scene was thus set for the future scholarly research of the undated incunables labelled “Roma, ante 1480” (Rome, before 1480) by de Rossi. The present essay discusses five of these incunables, all of which are described in Victor Madsen’s catalogue as printed in “Roma, ante 1480”; an approximated date which needs correcting. David Simonsen refers in passing to “the three printers of Rome” viz. Obadiah, Menasseh and Benjamin, as supposedly having been active in a printing press in Rome. The incunable with Salomon ben Abraham ibn Aderet (Raschba) Teschubot sche’elot. (“Answers to Questions”) dated “before 1980” is a case in point (#4332 in Victor Madsen’s catalogue), furnished with an earlier approximate publishing date c.1469–1472 no. 55 in the Offenberg census (1990) and eventually with REX online catalogue Inc. Haun in 2015.The best known printing press in Rome was created by the two German printers Conrad Sweynheym & Arnold Pannartz who established their first workshop at Santa Scolastica at Subiaco in the Sabine Mountains outside Rome in 1464, where they published several unique Latin works and introduced a Greek typeface. In 1467 they moved the press to the city of Rome in order to get closer to the reading and profitable public. In 1467 they moved the press to Rome in order to get closer to their reading public – and their profits. Here they were privileged to be housed in Palazzo Massimo by the proprietors Pietro and Francesco Massimo. What is more, they began working under the patronage of the respected humanist Giovanni Andrea Bussi, who was editor in charge.It is safe to conjecture that the Hebrew press was born in this milieu, as indeed suggested by Edwin Hall: “… a casual remark of Bussi in the preface to the Latin Bible hints at a possible connection between Sweynheym and Pannartz and what are thought to be the earliest printed books in Hebrew. These books, which contain no indication of date or place of printing, are the work of obscure printers named Obadiah, Manasseh, and Benjamin de Roma and constitute the most primitive surviving examples of printing in Italy.”I thank Dr. Ann Brener, Specialist in the Hebraic Section at the Library of Congress for supplying additional bibliographic references.
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Weinberg, Bella. "Hebraic Authorities: A Historical-Theoretical Perspective." Judaica Librarianship 8, no. 1 (September 1, 1994): 45–55. http://dx.doi.org/10.14263/2330-2976.1230.

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The standardization of Hebrew names in cataloging and bibliography has its roots in the Anglo-American tradition of Romanized author main entry. Cross-references from Hebrew names to their Roman equivalents are found in some British Hebraica catalogs published in the 19th century. In the Hebrew bibliographic tradition, in contrast, title main entry predominated and, given the nondistinctiveness of Jewish names, author access was rarely provided. Israeli librarians adopted the Western tradition of author main entry while retaining their commitment to original-alphabet cataloging; their Hebraic authority work consisted primarily of standardization of Hebrew orthography. The Hebraic capability of the Research Libraries Information Network (RLIN) made American Judaica librarians aware of the advantages of Hebrew name access; they had formerly been accustomed to Hebrew title access only. Many libraries are inputting parallel Hebrew access points to RLIN, with varying degrees of authority control. The USMARC Format for Authority Data has been revised to allow for parallel non-Roman data; the fields defined for non-Roman data have not been implemented, however, because the Library of Congress cannot handle non-Roman scripts in its processing system. Hebraic authority control is therefore done locally, in manual mode or with database management software.
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Grunberger, Michael. "A Collection Spanning Centuries: Library of Congress Is One of World's Foremost Centers for Hebraic Studies." Shofar: An Interdisciplinary Journal of Jewish Studies 10, no. 1 (1991): 106–9. http://dx.doi.org/10.1353/sho.1991.0006.

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Anderson, Gillian B. "Putting the Experience of the World at the Nation's Command: Music at the Library of Congress, 1800-1917." Journal of the American Musicological Society 42, no. 1 (1989): 108–49. http://dx.doi.org/10.2307/831419.

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Between 1800 and 1917 the music section at the Library of Congress grew from a few items in The Gentleman's Magazine to almost a million items. The history of this development provides a unique view of the infant discipline of musicology and the central role that libraries played in its growth in the United States. Between 1800 and 1870 only 500 items were acquired by the music section at the Library of Congress. In 1870 approximately 36,000 copyright deposits (which had been accumulating at several copyright depositories since 1789) enlarged the music section by more than seventy fold. After 1870 the copyright process brought an avalanche of music items into the Library of Congress. In 1901 Herbert Putnam, Librarian of Congress, hired American-born, German-educated Oscar Sonneck to be the second Chief of the Music Division. Together Putnam and Sonneck produced an ambitious acquisitions program, a far-sighted classification, cataloging, and shelving scheme, and an extensive series of publications. They were part of Putnam's strategy to transform the Library of Congress from a legislative into a national library. Sonneck wanted to make American students of music independent of European libraries and to establish the discipline of musicology in the United States. Through easy access to comprehensive and diverse collections Putnam and Sonneck succeeded in making the Library of Congress and its music section a symbol of the free society that it served.
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Shear, Adam. "Peggy K. Pearlstein, ed. Perspectives on the Hebraic Book: The Myron M. Weinstein Memorial Lectures at the Library of Congress. Washington, DC: The Library of Congress, 2012. 240 pp." AJS Review 39, no. 1 (April 2015): 181–83. http://dx.doi.org/10.1017/s0364009414000774.

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Lelikova, Nataliya K. "Bibliography at the All-Russian Bibliographic Congress in Murmansk." Bibliography and Bibliology, no. 3 (September 22, 2023): 149–53. http://dx.doi.org/10.25281/2411-2305-2023-3-149-153.

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This article tells about the activities of the Section on bibliography and information service of the Russian Library Association and about the main information content of the 15 reports at the meeting of this section within the framework of the All-Russian Library Congress in Murmansk (June 14, 2023). Special attention is given to the science works out in the sphere of bibliography, including new standards and typology of the bibliographic products.
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Trushina, I. A., and V. V. Meshcheryakova. "All-Russian Library Congress — 2018: On the Way to Creation of the Librarianship Development Concept." Bibliotekovedenie [Library and Information Science (Russia)] 67, no. 3 (August 26, 2018): 247–56. http://dx.doi.org/10.25281/0869-608x-2018-67-3-247-256.

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he article presents an analytical review of the All-Russian Library Congress, held in Vladimir — the Library Capital of Russia 2018 — on 12—18 May 2018. The Congress was devoted to the theme “Ba-sing on the Past, We Build the Future. The Role of Cultural Heritage in Transforming the Librarianship in Russia”. The Congress held an open Discussion on the concept of librarianship development in the Russian Federation; it adopted the Guidelines on local lore activities for public libraries of the Russian Federation and approved the Regulations on the Council for Professional Qualifications in the Field of Library and Information Activities, planned for creation under the Russian Library Association. The Congress worked in various formats: pre-session events, plenary sessions, section meetings by library types and activity areas, and special events. The 19th Exhibition of Publishing Products, New Information Technologies, Goods and Services complemented the Congress. The Congress determined Tula to be the Library Capital of Russia 2019.
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Meshcheryakova, Victoria V., and Irina A. Trushina. "Discussion on the Ways of Librarianship Development in Russia at the All-Russian Library Congress — 2019." Bibliotekovedenie [Library and Information Science (Russia)] 68, no. 3 (July 27, 2019): 321–29. http://dx.doi.org/10.25281/0869-608x-2019-68-3-321-329.

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The article presents an overview of the activities of the All-Russian Library Congress — the 24th Annual Conference of the Russian Library Association (RLA), which was held on May 11—17, 2019 in Tula, the Library Capital of Russia in 2019. The theme of the Congress is “Concept of Development and Strategic Objectives of Librarianship in Russia”. The authors note the expansion of international participation in the Congress’ 2019, the increase of the number of special and training events, the increasing integration and interaction of various sections of the RBA.The Congress approved the main provisions of the draft Concept of librarianship development in Russia, adopted the RLA Manifesto “Library is the Humanistic Stronghold of the Nation” and approved the draft revision of supplemented “Manual of Library Services for Children in Russia”.The authors consider the events of the Congress — two plenary sessions, section meetings, School of Acquisitions Librarian, School of Library Blogger, which became the place for discussions on a wide range of questions, the 20th Exhibition of publishing products, new information technologies, goods and services, as well as about 530 reports. The article emphasizes the importance of participation of libraries in the “Culture” National project and the role of the Program on modernization of municipal libraries. The Congress discussed the legal framework of library work; project activities; digital environment of libraries; social partnership with institutions of culture, education and tourism; issues of standardization, etc. The article highlights the election of Vice-presidents and Board members of the RLA, as well as presents the procedural decisions taken: on the establishment of the RBA Foundation, on the need to develop draft professional standards for the leading directions of library activities, etc.
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Editorial Team. "Call for Papers: World Library and Information Congress." Evidence Based Library and Information Practice 1, no. 4 (December 11, 2006): 82–83. http://dx.doi.org/10.18438/b8c306.

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Call for Papers: World Library and Information Congress: 73rd IFLA General Conference and Council, Durban, South Africa, 19-23 August 2007 Libraries for the future: Progress, Development and Partnerships The IFLA Social Science Libraries Section Standing Committee invites Library and Information Science professionals to submit paper proposals on the theme: “Evidence Based Practice in Social Science Libraries: Using research and empirical data to improve service” Proposals should focus on one or more of the following areas within Social Science Library settings: Case Studies that demonstrate the use of Evidence Based Practice to improve or create new library services Case Studies that focus on the use of Evidence Based Practice to guide professional development of librarians Essays that provide theoretical or practical approaches to Evidence Based Practice for social science libraries (this may include the application of Qualitative and Quantitative Research Methodologies such as Fieldwork and Observation, Interviewing, Qualitative Inquiry, Meta-analysis, Evaluation Studies etc…) Important Dates Please e-mail abstracts (maximum 500 words) by 1 February 2007 to: Steve Witt, Standing Committee Chair, swwitt@uiuc.edu Accompanied by the following information: Abstract Names of presenter(s) Position or title of presenter (s) Employer or affiliated institution Mailing address Telephone/fax numbers E-mail address Short biographical statement and resume Notifications of abstracts acceptance will be issued by 1 March 2006. The deadline for submission of full papers is 1 May 2006. Important Notes Regrettably, no financial support can be provided, but a special invitation can be sent to authors of accepted papers. Abstracts and papers must be submitted in one of the official IFLA languages (Chinese, English, French, German, Russian, and Spanish).
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Dissertations / Theses on the topic "Library of Congress. Hebraic Section"

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Gorman, G. E., and Philip J. Calvert. "LIS Journal Quality: Results of a Study for the IFLA Library and Information Science Section presented at the World Library and Information Congress: 69th IFLA General Conference and Council, 1-9 August 2003, Berlin, Germany." IFLA, 2003. http://hdl.handle.net/10150/105109.

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Books on the topic "Library of Congress. Hebraic Section"

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Library of Congress. The Near East Section of the Library of Congress. Washington, D.C: Library of Congress, 1991.

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Library of Congress. The Near East Section of the Library of Congress. [Washington, D.C.?]: The Library, 1991.

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Library of Congress. The Near East Section of the Library of Congress. [Washington, D.C.?]: The Library, 1991.

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Library of Congress. Library of Congress Africana collections: An illustrated guide. Washington: Library of Congress, 2001.

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Library of Congress. Copyright Office. Transfer of unpublished copyright deposits to the Library of Congress: Section 201.23 : [section] 201.23, 37 C.F.R. [Washington, D.C: Copyright Office, Library of Congress, 1993.

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Library of Congress. Near East Section. Library of Congress Near East collections: An illustrated guide. Washington: Library of Congress, 2001.

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Melville, Annette. Farm Security Administration, historical section: A guide to textual records in the Library of Congress. Washington: Prints and Photographs Division, Library of Congress, 1985.

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Library of Congress. Copyright Office. Transfer of unpublished copyright deposits to the Library of Congress: [symbol for section] 201.23, 37 C.F.R. Washington, D.C: Copyright Office, Library of Congress, 1985.

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Kelly, Alison P. American Church, Club and Community Cookbooks: Selected titles from the general collections of the Library of Congress, Science Reference Section, Science, Technology & Business Division, Library of Congress. Washington, D.C: Library of Congress, 2009.

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Group, Section 108 Study. The Section 108 Study Group report: An independent report sponsored by the United States Copyright Office and the National Digital Information Infrastructure and Preservation Program of the Library of Congress. Washington, D.C.]: [Section 108 Study Group], 2008.

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Book chapters on the topic "Library of Congress. Hebraic Section"

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"Photography." In Life and Limb, edited by David Seed, Stephen C. Kenny, and Chris Williams, 93–108. Liverpool University Press, 2016. http://dx.doi.org/10.3828/liverpool/9781781382509.003.0005.

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Most of this section consists of ‘Painful Looks: Reading Civil War Photographs’ by Mick Gidley, who examines the rise of photographs as a medical record of the Civil War and one which increasingly confronted the public with its carnage. The essay is supplemented with a contemporary account of Mathew Brady’s photographs which impressed with their ‘terrible distinctness.’ These pieces are juxtaposed to a section of contemporary photographs taken from the National Museum of Health and medicine, the Library of Congress and other sources.
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Scott, Pamela. "“The Temple of Justice and Faith”: The Capitol’s East and West Porticoes, Dome and Rotunda." In The Temple of Liberty, 44–67. Oxford University PressNew York, NY, 1995. http://dx.doi.org/10.1093/oso/9780195098570.003.0004.

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Abstract Revisions to William Thornton’s winning design for the Capitol, agreed to at the July 15, 1793, conference convened by Washington and Jefferson, ought to have determined the Capitol’s final exterior form. Solutions to architectural problems, however, are often fluid in the minds of creative designers. The size, shape, and details of Thornton’s wings were built essentially as he designed them because the north wing was begun immediately after the conference and the south wing was built to correspond to it a decade later. The “center building,” as it was called-containing at various times the conference room, crypt, domed Rotunda, and Library of Congress-was the last section to be built. This phased construction provided several successive architects with the opportunity to redesign the Capitol’s most visible elements: the east and west entrance porticoes and the dome. When Charles Bulfinch’s wood and brick double dome was finished in 1826, the Capitol’s exteriors represented a composite of ideas suggested by at least five of its seven architects: Thomas Jefferson, William Thornton, George Hadfield, Benjamin Henry Latrobe, and Bulfinch.
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El-Shamy, Hasan. "The Shipwrecked Sailor." In Popular Stories Of Ancient Egypt, 81–88. Oxford University PressNew York, NY, 2004. http://dx.doi.org/10.1093/oso/9780195173352.003.0005.

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Abstract The Papyrus that contains this story belongs to the Imperial Egyptian Museum of the Hermitage, St. Petersburg. It was discovered in 1880 by W, Golenischeff, and by him brought to the notice of the scholars who took part in the fifth International Congress of Orientalists, at Berlin in 1881. He did not then edit the text, but he has published a translation in French; Sur un ancien conte egyptien. Notice Jue au Congres des Orientalistes a Berlin, per W. Golenischeff, 1881, without publisher’s name, large 8vo, 21 pp. Breitkopf and Hartel, Leipzig. It was inserted in the Verhandlungen des Internationalen Orientalisten-Congresses, Berlin, 1882, 21es Theil, Erste Halfte, Africanische Section, pp. roo---122. This is the version I repr duced in the two first editions of this work, modifying it slightly on certain points, and it was from it that a Russian translation was made by Wladimir Stasow: Jegipetskajaskarka otkrytaja w Petersburgskom Ermitaze (An Egyptian tale discovered at the Hermitage of St. Petersburg) in the review Westnikjewropy (the Messengers of Europe), 1882, vol. i, pp. 580---602, and the two English translations given by Griffith in W. Flinders Petrie, Egyptian Tales, 1895, London, 12mo, vol. i, pp. 81---96, and F. LL Griffith, Egyptian Literature, in Specimen Pages of a Library of the World’s Best Literature, 1898, New York, 4to, pp. 5233---5236.
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Conference papers on the topic "Library of Congress. Hebraic Section"

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Wang, J. M., and D. Herbison. "A Comprehensive Squeeze Film Model of the Planar Circular Section Implemented in the Saber Simulator." In ASME 1999 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/imece1999-0075.

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Abstract This paper presents a comprehensive squeeze film model of planar circular plates, implemented in the MAST™ modeling language for use with the Saber™ simulator. Hydrodynamic pressure between two plates is a function of the displacement, velocity and dimensional parameters of the circular plates. The pressure generated in film has a distributed nature and it depends on, beside other factors, the pressure boundary condition. The total force acting on the plate surfaces is the integration of the pressure distribution. The viscosity of lubricants is modeled as the function of both pressure and temperature. Cavitation region occurred inside the squeeze film is considered by the model internally. Cavitation occurring at the boundary is modeled by connecting the hydraulic pin to the ideal cavitation template of the Saber template library. Saber outputs are discussed for some important influential effects under different operating conditions. The paper also includes discussion of the ideal cavitation and the hydraulic chamber templates which are embedded to support the squeeze film simulation.
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Zhang, Xizhe, Siddartha Khastgir, and Paul Jennings. "An ODD-Based Scalable Assurance Framework for Automated Driving Systems." In WCX SAE World Congress Experience. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2023. http://dx.doi.org/10.4271/2023-01-0574.

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<div class="section abstract"><div class="htmlview paragraph">Due to the increasing complexities, the safety assurances for Automated Driving Systems (ADSs) and Advanced Driver Assistance Systems (ADASs) pose challenges. Recent development within the industry and academia suggests a scenario-based approach underpinned by the system’s Operational Design Domain (ODD) for its safety assurance. In such framework, the ODD defines the safe operating boundary, whereas the scenarios set out individual test conditions. To assess the behavior of the system, a critical element for road safety is the ability to respect the rules of the road. This paper joins together ODDs, scenarios, and rules of the road to form a scalable ODD-based safety assurance framework. The backbone of the framework contains a coherent and common taxonomy to describe the ODDs and behavior library, the scenario tagging structure from the ASAM OpenLABEL standard has been used in the example use case.</div><div class="htmlview paragraph">The workflow utilizes the system’s ODD and behavior library as input to perform filtering and matching activities over a set of testing scenarios and the rules of the road library. Firstly, the ODD and behavior input are used to filter the applicable scenarios within the initial scenario set. At the same time the ODD and behavior input can also be used to filter the applicable rules within the rules of the road library. By further utilizing the ODD and behavior tags covered by the applicable scenarios, and applying them to the rules of the road library, the applicable scenarios related rules can be identified; similarly using the ODD and behavior tags covered by the applicable rules, and applying them to the initial scenario set, the applicable rules related scenarios can be obtained. Such process allows the most relevant rules and scenarios to be used when testing a target system. Furthermore, by comparing the applicable scenarios related rules with the applicable rules, and comparing the applicable rules related scenarios with the applicable scenarios, one can gain an understanding on the effectiveness and the efficiency of the test. When combined with the wider scenario-based evaluation criteria, the framework illustrated within this paper provides a novel and effective way to conduct and evaluate tests.</div></div>
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Bhaskaran, Rajesh, and Gal Berkooz. "Optimization of Fluid-Structure Interaction Using the Sensitivity Equation Approach." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-0042.

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Abstract A methodology for the optimization of coupled fluid-structure systems that couples flow and structural analysis codes without requiring iteration between the two codes is presented here. This method is valid in the nonlinear transonic and high-alpha regimes. It requires the sensitivity of the flow solution to perturbations in the geometry, in addition to the flow solution for the undeformed configuration. The flow solution for the base configuration and its sensitivity to geometric parameters are generated and transferred to the finite-element structural code. The structural code then solves the direct and sensitivity problems for the coupled fluid-structure system using a modified stiffness matrix. Results for the direct problem axe presented for the static aeroelastic effects on a wing section in inviscid transonic flow. The wing section is mounted through a torsion spring, in which case the geometry variation is due to deformation as well as rotation about the hinge point. The displacements show the expected aeroelastic relief effect due to the flexible loads increment. Both the flow sensitivity and the sensitivity of the coupled fluid-structure system are calculated using the sensitivity equation or direct differentiation approach. The flow sensitivity calculation is implemented by altering an existing flow code, CFL3D from NASA Langley. Implementation of optimization of the coupled system is being performed using the commercial C++ class library, PDESolve. Code snippets are presented to illustrate that an object-oriented library like PDESolve significantly reduces the effort in implementing the direct and sensitivity solutions.
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Tadjfar, M., and R. Himeno. "Parallel, Multi-Zone, Multi-Block Solver to Study Arterial Branches in Human Vascular System." In ASME 2001 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/imece2001/fed-24967.

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Abstract The unsteady, three-dimensional, incompressible Navier-Stokes equations are solved numerically to study arterial branches in human vascular system. The solver is capable of dealing with moving boundaries and moving grids. It is designed to handle complex, three-dimensional vascular systems. The computational domain is divided into multiple block subdomains. At each cross section the plane is divided into twelve sub-zones to allow flexibility for handling complex geometries and, if needed, appropriate parallel data partitioning. A second-order in time and third-order upwind finite volume method for solving time-accurate incompressible flows based on pseudo-compressibility and dual time-stepping technique is used. For parallel execution, the flow domain is partitioned. Communication between the subdomains of the flow on Riken’s VPP/700E supercomputer is implemented using MPI message-passing library. The code is capable of running on both shared and/or distributed memory architectures.
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Perz, E. "A Computer Method for Thermal Power Cycle Calculation." In ASME 1990 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1990. http://dx.doi.org/10.1115/90-gt-351.

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This paper describes a highly flexible computer method for thermodynamic power cycle calculations (PCC). With this method the user can model any cycle scheme by selecting components from a library and connecting them in an appropriate way. The flexibility is not restricted by any predefined cycle schemes. A power cycle is mathematically represented by a system of algebraic equations. The structure of mathematical cycle models as well as different approaches to set up and solve the resulting equations with computer programs are discussed in the first section. The second section describes the developed method. The mass and energy balance equations are set up and solved with an semi-parallel algorithm. As input only the cycle’s topology and component parameters must be entered. Information about the calculation sequence and the convergence method can be omitted completely. The example of two simple steam cycles demonstrates the applied technique. The method requires only a few — if any at all — iterations. Calculation time and storage requirements can be kept low enough to calculate even very complex cycles on personal computers. At the end of the paper input data and results for a complex cycle scheme as it may occur in reality are given to demonstrate the performance finally.
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Chaudhari, Prathamesh, Joel Najmon, and Andres Tovar. "Efficient Design of Shell-and-Tube Heat Exchangers Using CAD Automation and Fluid flow Analysis in a Multi-Objective Bayesian Optimization Framework." In WCX SAE World Congress Experience. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2024. http://dx.doi.org/10.4271/2024-01-2456.

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<div class="section abstract"><div class="htmlview paragraph">Shell-and-tube heat exchangers, commonly referred to as radiators, are the most prevalent type of heat exchanger within the automotive industry. A pivotal goal for automotive designers is to increase their thermal effectiveness while mitigating pressure drop effects and minimizing the associated costs of design and operation. Their design is a lengthy and intricate process involving the manual creation and refinement of computer-aided design (CAD) models coupled with iterative multi-physics simulations. Consequently, there is a pressing demand for an integrated tool that can automate these discrete steps, yielding a significant enhancement in overall design efficiency. This work aims to introduce an innovative automation tool to streamline the design process, spanning from CAD model generation to identifying optimal design configurations. The proposed methodology is applied explicitly to the context of shell-and-tube heat exchangers, showcasing the tool's efficacy. The automation of CAD tasks is facilitated through custom Python code, leveraging the CadQuery library to parameterize CAD models and expedite the CAD process. Meshing and Computational Fluid Dynamics (CFD) simulations are seamlessly integrated within a Python environment, utilizing Ansys Fluent. Concurrently, a multi-objective Bayesian optimization is executed using a Gaussian process regression model facilitated by the GPflow library. By significantly reducing the time required for design tasks, this automation tool addresses a critical challenge that has long persisted in the industry. The tool automates the design processes and identifies an optimal design for the Shell and Tube Heat Exchanger. The tool explores the design space for new non-dominant designs. Three new designs are added to the space, with two dominant and one non-dominant design, further improving the pareto front. Similarly, this tool can be applied to multidisciplinary fields to identify the optimal design quickly with less human intervention in the design process.</div></div>
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Dwyer, Elisabeth, Sivaram Gogineni, Alexander Smits, Ron Adrian, Stavros Tavoularis, and Chris Rogers. "Hands-On Experimentation in the Fluid Mechanics Classroom as Homework With eFluids.com." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-61532.

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In an introductory fluid mechanics course, it is important for students to realize that the mathematical models they are deriving in class sometimes model the real world well and sometimes not so well. One way to demonstrate this is to have the students model a simple experiment and compare the results of the model to those of the experiment. This exercise teaches the importance of the model assumptions and the applicability of the model. It would be even more effective if the experiments were simple enough so that students could do them at home as a homework assignment, rather than restricting their experience to a “canned” two hour lab course. At eFluids.com, we are building a library of such experiments in an effort to build a community of educators that moves beyond the traditional mathematical exercises for homework. Here, we describe a number of these experiments and how they can be used in classes. We also present some methods of using the eFluids.com Gallery of Images in the classroom to give students the opportunity to see “Fluids in Action.” Finally, we introduce the eFluids Olympiad section where faculty can post effective and “interesting” homework problems.
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8

Zhang, Kuiwen, Karthik Puduppakkam, and Anthony Shelburn. "Development and Validation of a Reduced Chemical Kinetic Mechanism of Dimethyl Carbonate and Ethylene Carbonate." In WCX SAE World Congress Experience. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2024. http://dx.doi.org/10.4271/2024-01-2085.

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<div class="section abstract"><div class="htmlview paragraph">With the rapid development of electric vehicles, the demands for lithium-ion batteries and advanced battery technologies are growing. Today, lithium-ion batteries mainly use liquid electrolytes, containing organic compounds such as dimethyl carbonate and ethylene carbonate as solvents for the lithium salts. However, when thermal runaway occurs, the electrolyte decomposes, venting combustible gases that could readily be ignited when mixed with air and leading to pronounced heat release from the combustion of the mixture. So far, the chemical behavior of electrolytes during thermal runaway in lithium-ion batteries is not comprehensively understood. Well-validated compact chemical kinetic mechanisms of the electrolyte components are required to describe this process in CFD simulations. In this work, submechanisms of dimethyl carbonate and ethylene carbonate were developed and adopted in the Ansys Model Fuel Library (MFL). Further improvements were made to enhance the kinetic consistency between these submechanisms and the base mechanism of the MFL. These mechanisms were validated using recently published experimental datasets over a wide range of conditions and show satisfactory performance. Analysis of the simulated results has revealed the important reaction pathways in the decomposition of dimethyl carbonate and ethylene carbonate. The species involved in the most critical pathways were selected as key species in the subsequent mechanism reduction using Ansys Reaction Workbench. Multiple mechanism reduction approaches were applied in combination to reduce the mechanism described here to 38 species and 177 reactions. This mechanism is ready to be used in CFD simulation.</div></div>
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9

Chintala, Paramesh, Joseph Oh, Markus Steeb, and Shivanand Sankaran. "Complexity Reduction of Damper Base Valve Design Based on Computational and Experimental Validation." In WCX SAE World Congress Experience. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2024. http://dx.doi.org/10.4271/2024-01-2811.

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<div class="section abstract"><div class="htmlview paragraph">A damper is one of the most important elements in a vehicle suspension system. The damper valves are a fully coupled hydraulic system where the suspension fluid flow interacts with the elastic response of the valve structure. The base valve in the hydraulic damper plays a significant role in compression damping force characteristics of a damper, and therefore designing of the base valve is critical for damping force tuning. In this paper, the impact of the base valve design complexity reduction is quantitatively analyzed. The Current base valve design is restrictive which prevents achieving the required compression damping force ranges without a substantial base valve body parts library. A new base valve assembly is suggested with one more degree of freedom via a restrictor plate. Introducing this new element allows reducing the number of base valve designs for damping performance tuning. The design of the new base valve is engineered from existing designs with the aid of computer aided simulation for improving the tuning range of the damper with reduced number of valve body parts. Finite Element (FE) methods are utilized to evaluate the new base valve structural strength and validated by conducting experimental structural hub crush strength test. For the hydraulic performance of the new base valve design, Computational Fluid Dynamics (CFD) simulations were carried out for meeting damping force requirement. A test flow bench was built to validate the computational models. The new base valve is also a cost-effective solution to meet compression damping force tuning range and resolution.</div></div>
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10

Purushothaman, Ashwin Karthik, Youngchul Ra, Kyoung Pyo Ha, Shengrong Zhu, and Ankith Ullal. "Numerical Study of a Six-Stroke Gasoline Compression Ignition (6S-GCI) Engine Combustion with Oxygenated Fuels." In WCX SAE World Congress Experience. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2024. http://dx.doi.org/10.4271/2024-01-2373.

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<div class="section abstract"><div class="htmlview paragraph">A numerical investigation of a six-stroke direct injection compression ignition engine operation in a low temperature combustion (LTC) regime is presented. The fuel employed is a gasoline-like oxygenated fuel consisting of 90% isobutanol and 10% diethyl ether (DEE) by volume to match the reactivity of conventional gasoline with octane number 87. The computational simulations of the in-cylinder processes were performed using a high-fidelity multidimensional in-house 3D CFD code (MTU-MRNT) with improved spray-sub models and CHEMKIN library. The combustion chemistry was described using a two-component (isobutanol and DEE) fuel model whose oxidation pathways were given by a reaction mechanism with 177 species and 796 reactions.</div><div class="htmlview paragraph">The key advantage of six-stroke engine operation is the ability to switch the combustion mode among kinetical controlled mode (KCM), kinetically-driven mixing control mode (K-MCM) and mixing controlled mode (MCM) in the second power stroke (PS2) providing a wider range of combustion control. The K-MCM mode operation has shown to reduce both soot and NOx emissions substantially at low load (around 7bar IMEP) engine operations. The current work focuses on 6S-GCI engine operation using synthetic fuels at high load engine operation with the constraints on pressure rise rate (&lt;10bar/deg), combustion efficiency (&gt;90%), soot and NOx emissions (&lt;1g/kg fuel). With the constraints met, engine operating conditions at 15 bar IMEP and 2000 rpm were identified as a function of fuel split ratio and injection timings. Parametric study was also performed by varying fuel injection pressure, initial gas temperature at IVC, boost pressure and exhaust gas recirculation ratio. Engine performance and emissions characteristics of parametric variation are presented as well.</div></div>
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