Academic literature on the topic 'Melchior'

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Journal articles on the topic "Melchior"

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Szpulak, Andrzej. "Podwójne spojrzenie na pewne zdarzenie z przeszłości. O Szpitalu w Cichiniczach Melchiora Wańkowicza i Wrotach Europy Jerzego Wójcika." Images. The International Journal of European Film, Performing Arts and Audiovisual Communication 26, no. 35 (December 15, 2019): 117–27. http://dx.doi.org/10.14746/i.2019.35.06.

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Szpulak Andrzej, Podwójne spojrzenie na pewne zdarzenie z przeszłości. O Szpitalu w Cichiniczach Melchiora Wańkowicza i Wrotach Europy Jerzego Wójcika [Double gaze at an event from the past. About Melchior Wańkowicz’s Hospital in Cichinicze and Jerzy Wójcik’s The Gateway of Europe]. „Images” vol. XXVI, no 35. Poznań 2019. Adam Mickiewicz University Press. Pp. 117–127. ISSN 1731-450X. DOI 10.14746/i.2019.35.06. This text confronts two images of a small episode from the First World War and the struggle of Poland to regain its independence. The literary image, Hospital in Cichinicze, is the story of Melchior Wańkowicz (1926), and the film picture is The Gateaway of Europe by Jerzy Wójcik (1999). The film work was an adaptation of literary material; however, the ways memory is created in the two cases are different. Wańkowicz created a somewhat reporter-like, realistic, non-stereotypical record of events, while Wójcik’s story was more universal and at the same time more rooted in national symbolism.
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Wisniak, Jaime. "Eugène Melchior Peligot." Educación Química 20, no. 1 (January 2009): 61–69. http://dx.doi.org/10.1016/s0187-893x(18)30008-9.

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Grzebień, Ludwik. "Święty Melchior Grodziecki." Folia Historica Cracoviensia 15 (January 28, 2016): 89. http://dx.doi.org/10.15633/fhc.1164.

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Ertsen, M. W. ""A not completely satisfactory attempt" – peak discharges and rainfall-runoff relations for Javanese rivers between 1880 and 1940." History of Geo- and Space Sciences 2, no. 1 (February 15, 2011): 39–55. http://dx.doi.org/10.5194/hgss-2-39-2011.

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Abstract. In the early 19th century, the Dutch colonial power started to build irrigation works. A main problem for Dutch irrigation engineers on Java was how to ensure that the structures they built remained intact. The peak discharge regime of a river was an issue closely related to dam safety. Modifying the approach of Swiss engineer Lauterburg (1877), Dutch irrigation engineer Melchior developed a methodology to determine design peak flows of Javanese rivers. The Melchior methodology has been the standard method throughout the colonial period, despite sometimes severe criticisms on its appropriateness. In independent Indonesia, the approach developed by Melchior continues to be applied. This paper discusses and explains the endurance of the method developed by Melchior. The focus is on the scientific interaction between different participants. The paper shows how participants from these circles debated and which arguments they exchanged.
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Monok, István. "L’Europe de Melchior Junius." La Revue de la BNU, no. 16 (November 1, 2017): 56–59. http://dx.doi.org/10.4000/rbnu.678.

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Camara, El hadji. "Mbonimpa, Melchior. Diangombé, l’Immortel." Voix Plurielles 12, no. 1 (May 6, 2015): 428–29. http://dx.doi.org/10.26522/vp.v12i1.1206.

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Dehant, Veronique, and Olivier Francis. "Paul Melchior (1925–2004)." Eos, Transactions American Geophysical Union 86, no. 22 (2005): 211. http://dx.doi.org/10.1029/2005eo220006.

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Beighton, P. "Dyggve-Melchior-Clausen syndrome." Journal of Medical Genetics 27, no. 8 (August 1, 1990): 512–15. http://dx.doi.org/10.1136/jmg.27.8.512.

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Gupta, Vijay, A. Kohli, and V. Dewan. "Dyggve-Melchior-Clausen syndrome." Indian Pediatrics 47, no. 11 (November 2010): 973–75. http://dx.doi.org/10.1007/s13312-010-0151-x.

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Darlow, Mark. "Correspondance littéraire - By Friedrich Melchior Grimm; Correspondance littéraire - By Friedrich Melchior Grimm." Journal for Eighteenth-Century Studies 35, no. 1 (February 14, 2012): 153–54. http://dx.doi.org/10.1111/j.1754-0208.2010.00297.x.

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Dissertations / Theses on the topic "Melchior"

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Flotho, Annette [Verfasser], Frauke [Akademischer Betreuer] Melchior, and Ralf [Akademischer Betreuer] Ficner. "Characterizing the RanGAP1-RanBP2 complex in mitosis / Annette Flotho. Gutachter: Frauke Melchior ; Ralf Ficner. Betreuer: Frauke Melchior." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2009. http://d-nb.info/1042780196/34.

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Werner, Achim [Verfasser], Frauke [Akademischer Betreuer] Melchior, Gerhard [Akademischer Betreuer] Braus, and Nils [Akademischer Betreuer] Brose. "Functional and mechanistic characterization of the F-box protein Fbxw5 / Achim Werner. Gutachter: Frauke Melchior ; Gerhard Braus ; Nils Brose. Betreuer: Frauke Melchior." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2011. http://d-nb.info/1042346070/34.

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Vonarburg, Züllig Maya Russ Melchior. "Melchior Russ: Cronika : eine Luzerner Chronik aus der Zeit um 1482 /." Zürich : Chronos, 2009. http://opac.nebis.ch/cgi-bin/showAbstract.pl?u20=9783034009492.

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Melchior, Tobias [Verfasser]. "Untersuchungen zur Oberflächenspannung von Kohleschlacken unter Vergasungsbedingungen / Tobias Melchior." Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2011. http://d-nb.info/1015883362/34.

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Dostert, Astrid [Verfasser]. "Die Antikensammlung des Kardinals Melchior de Polignac / Astrid Dostert." Berlin : Freie Universität Berlin, 2016. http://d-nb.info/1107011698/34.

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Menzel, Melchior [Verfasser], and Thomas [Akademischer Betreuer] Ziegler. "Über die Synthese symmetrischer vicinaler Diulosen / Melchior Menzel ; Betreuer: Thomas Ziegler." Tübingen : Universitätsbibliothek Tübingen, 2016. http://d-nb.info/1163665061/34.

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Vonarburg, Züllig Maya Russ Melchior. "Melchior Russ: Cronika eine Luzerner Chronik aus der Zeit um 1482." Thesis, Zürich Chronos, 2008. http://deposit.d-nb.de/cgi-bin/dokserv?id=3201783&prov=M&dok_var=1&dok_ext=htm.

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Melchior, Felix [Verfasser]. "Funktionelle Analyse professioneller antigenpräsentierender Zellen in der murinen Haut / Felix Melchior." Mainz : Universitätsbibliothek der Johannes Gutenberg-Universität Mainz, 2021. http://d-nb.info/1227048912/34.

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Rodrigues, Andresa Soares. "As tribos Dalechampieae Müll. Arg. e Manihoteae Melchior (Euphorbiaceae) no Distrito Federal, Brasil." reponame:Repositório Institucional da UnB, 2007. http://repositorio.unb.br/handle/10482/2755.

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Dissertação (mestrado)—Universidade de Brasília, Departamento de Botânica, 2007.
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O Distrito Federal está situado no Brasil Central, entre as coordenadas geográficas 15°30’-16°03’S e 47°19’-48°12’W, totalizando uma área de 5.783km². Sua vegetação abrange formas bem variadas, desde campos com plantas rasteiras, às vezes com arbustos e subarbustos, até florestas. A família Euphorbiaceae abrange aproximadamente 290 gêneros e cerca de 7.500 espécies. No Distrito Federal está representada por 22 gêneros e entre os mais representativos estão Croton L., Manihot Mill. e Sebastiania Bertol. O presente trabalho objetiva contribuir com a “Flora do Distrito Federal, Brasil”, através do levantamento das tribos Manihoteae Melchior e Dalechampieae Müll., baseandose em coletas de campo e na análise de materiais herborizados de coleções dos seguintes herbários: Embrapa Recursos Genéticos e Biotecnologia (CEN); Universidade de Brasília (UB), Instituto Brasileiro de Geografia e Estatística(IBGE), Jardim Botânico de Brasília (HEPH) e Instituto de Botânica de São Paulo(SP). As tribos Manihoteae e Dalechampieae são monogenéricas. O gênero Manihot é natural das Américas, com dois principais centros de diversidade, um localizado no Brasil (Minas Gerais, Goiás e interior da Bahia), com cerca de 80 espécies e outro no México, com cerca de 18 espécies. O gênero Dalechampia é natural dos trópicos, bem representado nas Américas com cerca de 100 espécies. No Distrito Federal foram identificadas quatro espécies de Dalechampia: D. caperonioides Baillon, D. humilis Müll. Arg., D. linearis Baillon, D. triphylla Lam., e 13 espécies e 1 variedade de Manihot: M. anomala Pohl, M. fruticulosa (Pax) Rogers & Appan, M. gracilis Pohl, M. hilariana Baillon, M. longepetiolata Pohl, M. nana Müll. Arg., M. nogueirae Allem, M. sparsifolia Pohl, M. pusilla Pohl, M. tripartita (Spreg) Müll. Arg., M. triphylla Pohl, M. tomentosa Pohl, M. violacea var. violacea Müll. Arg. e M. violacea var. cecropiifolia (Pohl) Müll. Arg., totalizando 18 táxons destas tribos no Distrito Federal. Oitenta por cento dos táxons foram observados no campo e coletados. Manihot nogueirae é endêmica da bacia do rio São Bartolomeu, M. hilariana, M. longepetiolata e D. triphylla estão sendo citadas pela primeira vez para o Distrito Federal. São apresentadas: chaves de identificação, descrições, ilustrações e comentários. ________________________________________________________________________________ ABSTRACT
The Federal District is located in Central Brazil, within the geographical coordinates 15°30’-16°03’S and 47°19’-48°12’W, in an area of 5,783 km². The vegetation in the Federal District is very varied in form, ranging from dense grasslands, usually with a sparse covering of shrubs and small trees, to almost closed woodlands. The family Euphorbiaceae has approximately 290 genera and around 7,500 species, distributed in the tropical and subtropical regions of the planet. In the Federal District it is represented by 22 genera, among which the most representative are Croton L., Manihot Mill. and Sebastiania Bertol. This paper is to contribute to the Federal District Flora by identifying the Manihoteae Melchior and Dalechampieae Müll. tribes, based on field collects and on the analysis of vouchers from the foollowing herbaria: Embrapa Genetic Resources and Biotechnology (CEN); University of Brasília (UB), Brazilian Institute for Geography and Statistics (IBGE), Brasília Botanic Garden (HEPH) and Botanical Institute of São Paulo (SP). The tribes Manihoteae and Dalechampieae are monogeneric. The genus Manihot is natural from the Americas, with two main diversity centers – one located in Brazil (Minas Gerais, Goiás and inland Bahia), with around 80 species, and the other in Mexico, with around 18 species. The genus Dalechampia is tropical, well represented in the Americas with around 100 species. 18 taxa of these tribes were identified in the Federal District: four species of Dalechampia: D. caperonioides Baillon, D. humilis Müll. Arg., D. linearis Baillon D. triphylla Lam., and 13 species and a variety of Manihot: M. anomala Pohl, M. fruticulosa (Pax) Rogers & Appan, M. gracilis Pohl, M. hilariana Baillon, M. longepetiolata Pohl, M. nana Müll. Arg., M. nogueirae Allem, M. sparsifolia Pohl, M. pusilla Pohl, M. tripartita (Spreg) Müll. Arg., M. triphylla Pohl, M. tomentosa Pohl, M. violacea var. violacea Müll. Arg. and M. violacea var. cecropiifolia (Pohl) Müll. Arg. 80% of this taxa were observed at the field and collected. Manihot nogueirae is endemic from the São Bartolomeu river basin, M. hilariana, M. longepetiolata and D. triphylla are mentioned for the first time for the Federal District. Identifying keys, descriptions, illustrations and comments are presented.
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Silva, Ana Margarida Santos da. "Caim, Gaspard, Melchior, Balthazar e demais cúmplices : jornada às avessas rumo à inefável transcendência." Master's thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/16000.

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Mestrado em Línguas, Literaturas e Culturas
Tendo como ponto de partida a leitura intertextual das obras Caim, de José Saramago, e Gaspard, Melchior et Balthazar, de Michel Tournier, encaradas à luz da Teoria da Carnavalização do filósofo russo Mikhail Bakhtin, procura-se estabelecer afinidades e antinomias passíveis de constarem na temática da revisitação subversiva de mitos bíblicos. Assim sendo, pretende-se concluir, nomeadamente, acerca da relevância do diálogo efetuado pelos autores em torno da verdade oficial e sua reinterpretação, ainda que insolente; da validade da viagem de iniciação, enquanto lenitivo, “via-sacra” e demanda de absoluta Plenitude, empreendida pelos heróis e pelos anti-heróis; do grotesco na representação carnavalesca do corpo e da vida terrena; da presença de um discurso narrativo fazendo uso de uma linguagem subversiva, onde grotesco, ironia e/ou paródia são percetíveis; dos valores morais e ética social a preservar versus crítica acérrima ao poder instituído; da queda do Homem e do confronto com Deus e suas imperdoáveis limitações “humanas”; da presença do binómio entidade divina/entidade mefistofélica e o modo como as várias vozes narrativas surgem articuladas. Concomitantemente, pretende-se comprovar que os textos de José Saramago e Michel Tournier, embora mergulhando no desmascaramento, “profanação” e aparente niilismo do Texto Bíblico, na dessacralização de um cosmos oficial e na adoção do riso e impertinência enquanto catarse, longe de provocarem a aniquilação do mito, antes concorrem para uma releitura profícua, pois repleta de pluralidade de significados, onde o Transcendente, por oposição à desilusão prodigalizada pela vida terrena, é objeto de revitalização; pretendendo autores, narradores e leitores, postos em diálogo polifónico, a não reiteração de modos perniciosos de “estar” e “ser”, mas um olhar lúcido e puro sobre o futuro da Humanidade.
Taking as a starting point the intertextual reading of Caim, work of José Saramago, and Michel Tournier’s Gaspard, Melchior and Balthazar, viewed in the light of Carnivalization theory of the Russian philosopher Mikhail Bakhtin, will be made an attempt to establish affinities and antinomies liable to be included in the theme of subversive revisiting biblical myths. Therefore, it’s intended to conclude in particular about the relevance of the dialogue accomplished by the authors around the official truth and its reinterpretation, even insolent; the validity of the journey of initiation, while soothing, "via-sacra" and demand of absolute fullness, undertaken by the heroes and the antiheroes; the grotesque in the carnival representation of the body and earthly life; the presence of a narrative discourse making use of a subversive language, where the grotesque, irony and/or parody are noticeable; the moral values and social ethics to preserve versus the fierce criticism to the institutional power; the fall of Man and the confrontation with God and their “human” unforgivable limitations; the presence of the binomial divine/Mephistophelean entities and how the several narrative voices arise articulated. Concomitantly, it’s intended to prove that the texts of José Saramago and Michel Tournier, in spite of diving into the unmasking, "desecration" and apparent nihilism of the Biblical text, the desecration of an official cosmos and the adoption of laughter and impertinence while catharsis, far from causing the annihilation of myth, they compete for a fruitful reinterpretation, full of multiple meanings, where the Transcendent, as opposed to disappointment lavished by earthly life, is a revitalizing object; intending authors, narrators and readers, put into polyphonic dialogue, not the reiteration of pernicious ways of "being" but a lucid and fresh look on the future of humanity.
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Books on the topic "Melchior"

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Demouzon. Melchior: Roman. [Paris]: Calmann-Lévy, 1995.

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Ratschky, Joseph Franz. Melchior Striegel. Graz: Ackademische Druck- u. Verlagsanstalt, 1991.

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Johan Melchior Goeze. Hamburg: Ellert & Richter, 2007.

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Poplatek, Jan. Św. Melchior Grodziecki. Kraków: Wydawn. WAM, 2006.

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"Allerbester Melchioir!": Melchior Ludolf Herold - Initiator der Industrieschulbewegung im Herzogtum Westfalen. Paderborn: Bonifatius, 2011.

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Le réseau Melchior: Roman. [Paris]: JC Lattès, 1996.

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Wańkowicz, Melchior. Melchior i Krystyna Wańkowiczowie: Korespondencja. Warszawa: Twój Styl, 1993.

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Caradeau, Jean-Luc. Melchior ou la voie magique. Puiseaux: Pardes, 1990.

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Arnosi, Eduardo. Lauritz Melchior, el coloso wagneriano. Buenos Aires: Ars Lyrica, 1994.

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Demouzon. La promesse de Melchior: Roman. Paris: Calmann-Lévy, 2000.

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Book chapters on the topic "Melchior"

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Giselbrecht, Elisabeth. "Melchior Lotter." In Early Music Printing in German-Speaking Lands, 123–34. Abingdon, Oxon ; New York, NY : Routledge, 2018.: Routledge, 2018. http://dx.doi.org/10.4324/9781315281452-7.

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Kröger, Wolfgang. "Goeze, Johan Melchior." In Theologen, 121. Stuttgart: J.B. Metzler, 2004. http://dx.doi.org/10.1007/978-3-476-02948-5_84.

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De Bersaques, Jean. "Camille Melchior Gibert." In Pantheon of Dermatology, 376–79. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-33224-1_63.

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Orth, Gottfried. "Goeze, Johann Melchior." In Kindlers Literatur Lexikon (KLL), 1. Stuttgart: J.B. Metzler, 2020. http://dx.doi.org/10.1007/978-3-476-05728-0_11407-1.

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Metze, Dieter, Tam Nguyen, Birgit Haack, Alexander K. C. Leung, Noriko Miyake, Naomichi Matsumoto, A. J. Larner, et al. "Dyggre-Melchior-Clausen." In Encyclopedia of Molecular Mechanisms of Disease, 551. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-29676-8_6871.

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Schwarz, Hans-Peter. "Johann Melchior Dinglinger." In Das Künstlerhaus, 243. Wiesbaden: Vieweg+Teubner Verlag, 1990. http://dx.doi.org/10.1007/978-3-663-05290-6_68.

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Wild, Gerhard. "Soulié, Melchior Frédéric." In Kindlers Literatur Lexikon (KLL), 1. Stuttgart: J.B. Metzler, 2020. http://dx.doi.org/10.1007/978-3-476-05728-0_18003-1.

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Willard, Dallas. "Review of Melchior Palágyi’s." In Early Writings in the Philosophy of Logic and Mathematics, 197–206. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-015-8147-9_13.

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Wild, Gerhard. "Grimm, Frédéric Melchior Baron von." In Kindlers Literatur Lexikon (KLL), 1. Stuttgart: J.B. Metzler, 2020. http://dx.doi.org/10.1007/978-3-476-05728-0_3894-1.

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Knebel, Kristin. "Kraus, Georg Melchior (1737–1806)." In Goethe Handbuch, 502–5. Stuttgart: J.B. Metzler, 2011. http://dx.doi.org/10.1007/978-3-476-00206-8_50.

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Conference papers on the topic "Melchior"

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"Biography - Hans Melchior." In Technical Digest. CLEO/Pacific Rim 2001. 4th Pacific Rim Conference on Lasers and Electro-Optics. IEEE, 2001. http://dx.doi.org/10.1109/cleopr.2001.967925.

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Lavrentyeva, Elena. "The Architectural History of the Church of the Holy Sepulchre in Jerusalem: the Question of the Periodization of Melchior De Vogüé." In Proceedings of the 2019 International Conference on Architecture: Heritage, Traditions and Innovations (AHTI 2019). Paris, France: Atlantis Press, 2019. http://dx.doi.org/10.2991/ahti-19.2019.11.

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Lucas Alba, Antonio, María Teresa Blanch Micó, Teresa Bellés Rivera, Ana Mª Ferruz Gracia, Óscar Manuel Melchor-Galán, Luis Carlos Delgado Pastor, Francisco Ruíz Jimenez, and Mariano Chóliz Montañés. "CAR FOLLOWING TECHNIQUES: THE ROLE OF THE HUMAN FACTOR RECONSIDERED." In CIT2016. Congreso de Ingeniería del Transporte. Valencia: Universitat Politècnica València, 2016. http://dx.doi.org/10.4995/cit2016.2016.3341.

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Engineering and psychophysiological car following models emerge in the late 1950s (Saifuzzaman & Zheng, 2014). Such models differ in their ground concepts and explanatory mechanisms, but both assume a fundamental tenet: following each other, drivers invariably attempt to couple, keeping safety distance. More recent models focus on the spontaneous emergence of traffic jams that results from the properties of a system of interacting vehicles (i.e., without bottlenecks). In an experimental setting Sugiyama et al., (2008) have successfully recreated the conditions that allow the observation of the typical soliton wave going backwards through several car clusters. When certain speed, density and inter-vehicular distance join, so do traffic jams. Some of us have built upon these and other factors (e.g., wave movement in nature) exploring the mathematical properties of a system with three incognita that also needs three variables to be solved (Melchor & Sánchez, 2014). Two canonical car-following techniques emerge as a consequence: Driving to keep safety Distance (DD) vs Inertia (DI). Also a basic question: can drivers actually understand and follow either way, or do they stick to a basic normative driving behavior? This paper summarizes the results after three experimental studies done with a driving simulator. Several performance measures from individual drivers (accelerations, decelerations, average speed, distance to leader, and so on) were taken. As an overall indicator, results consistently announce in the three studies that DI trips consume less fuel (about 20%) than DD ones.DOI: http://dx.doi.org/10.4995/CIT2016.2016.3406
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Sen, A. K., J. Darabi, and D. R. Knapp. "Modeling of a Novel Multi-Jet Emitter for ESI-MS Applications." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-14401.

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This paper presents the concept and simulation of a novel multiple electrospray emitters for electrospray ionization mass spectrometric (ESI-MS) applications. The proposed emitter is based on an array of carbon nanofibers (CNF) vertically grown around the orifice of a microscale thermoplastic capillary. The electrospray ionization process is simulated using a CFD code that utilizes Taylor-Melcher leaky-dielectric formulations for the electrohydrodynamics and volume-of-fluid (VOF) method for tracking the interface. The modeling results predict that under steady state conditions, individual cone-jets are established around each of the CNFs resulting in an array of electrosprays. Effects of several design and operational parameters on the electrospray performance are thoroughly investigated. The results of the present study will facilitate design, fabrication and experiments using the CNF emitter. Higher spray current and lower jet diameter indicate that the proposed emitter can perform equivalent to nanospray emitters exhibiting improved MS sensitivity while using a microscale orifice. Use of microscale orifice benefits in terms of higher sample throughput and eliminates potential clogging problem inherent in nanoscale capillaries. Overall, the proposed emitter is believed to be a suitable candidate for ESI-MS applications.
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5

Jiang, Liangkui, Pavithra Premaratne, Yanhua Huang, Zhan Zhang, and Hantang Qin. "Modeling and Experimental Validation of Droplet Generation in Electrohydrodynamic Inkjet Printing for Prediction of Printing Quality." In ASME 2021 16th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/msec2021-63375.

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Abstract Electrohydrodynamic (EHD) Inkjet printing is one type of micro/nano scale additive manufacturing technique. The droplet generation mechanism plays an important role in electrohydrodynamic (EHD) inkjet printing due to its significant effects on process control, printing quality, and printing performance. The large variation of printing system design used in EHD printing and the limited process optimization techniques resulted in a complex experimental procedure to determine a working condition, and it takes a long time to finish such experiments. It is also challenging to understand the droplet generation mechanism’s fluid dynamics under a multiphysical field in EHD printing. The development of computational fluid dynamics (CFD) and the recent advancements in high performance computing can be utilized to alleviate the aforementioned challenges. In this study, a numerical simulation model was developed to model the droplet generation mechanism in EHD printing based on Taylor-Melchar leaky-dielectric model. This model successfully simulated a single printing cycle, including Taylor cone formation, cone-jet generation, jet break, and jet retraction. A further simulation study demonstrated accurate predictions of the droplet volume and the jetting diameter under different working conditions (e.g., voltages and duty ratio of pulsed AC voltage). Experiments validated the simulation model and its prediction results. Such advancement in modeling can be used to optimize the printing process as well as guide the quick selection of printing conditions given a new ink.
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6

Narayanan, Venkat R. T., Jianbo Li, Jeffrey D. Zahn, and Hao Lin. "Numerical Modeling of Microfluidic Two-Phase Electrohydrodynamic Instability." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-67757.

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Organic-aqueous liquid (phenol) extraction is one of many standard techniques to efficiently purify DNA directly from cells. Effective dispersion of one fluid phase in the other increases the surface area over which biological component partitioning may occur, and hence enhances DNA extraction efficiency. Electrohydrodynamic (EHD) instability can be harnessed to achieve this goal and has been experimentally demonstrated by one of the co-authors (JDZ). In this work, analysis and simulation are combined to study two-phase EHD instability. In the problem configuration, the organic (phenol) phase flows into the microchannel in parallel with and sandwiched between two aqueous streams, creating a three-layer planar geometry; the two liquid phases are immiscible. An electric field is applied to induce instability and to break the organic stream into droplets. The Taylor-Melcher leaky-dielectric model is employed to investigate this phenomenon. A linear analysis is carried out with a Chebyshev pseudo-spectral method, whereas a fully nonlinear numerical simulation is implemented using a finite volume, immersed boundary method (IBM). The results from both models compare favorably with each other. The linear analysis reveals basic instability characteristics such as kink and sausage modes. On the other hand, the nonlinear simulation predicts surface deformation in the strongly nonlinear regime pertinent to droplet formation. These numerical tools will be used to investigate the effects of the applied electric field, geometry, and convective flow rate on mixing and dispersion. The eventual objective is to maximize surface area of the organic phase under given experimental conditions for optimized DNA extraction.
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