726 research outputs found

    A high efficient energy converter for a hybrid vehicle concept - gas spring focused

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    Abstract: This publication deals with the concept, the explanation, the development and the actual measurement results of a free-piston linear generator (FPLG) with the focus on the gas spring. The free-piston linear generator is able to convert chemical energy into electrical energy by using a combustion process. In this publication the function and the characteristics of the free-piston linear generator will be explained first. Then the surrounding system and its effects on the FPLG are explained. This is important to understand the effect of every subsystem to the FPLG. In the next step the development based of the three base components, the gas spring [7], the linear generator [4] and the combustion [6] will be explained. Each chapter includes actual measurement results generated on a purpose-built test bench. At the end of the publication the current situation of the FPLG development and the further steps are represented

    Gerhart Pohl and Hauptmann, ... Carl Hauptmann

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    The following text presents a little‑known fact from the history of Silesian‑German literature: the relationship between the writers Gerhart Pohl and Carl Hauptmann. Pohl (1902–1966) – first and foremost a prose writer, but also a playwright, publisher, reader, columnist and prominent member of writers’ associations – is known in literary circles primarily as an acquaintance, biographer and a kind of “guardian of memory” of the other Hauptmann brother, the Nobel Prize winner Gerhart. A closer examination of the sources, however, reveals Carl Hauptmann’s significant role in Pohl’s literary legacy and biography, as well as the great esteem in which Pohl held Carl Hauptmann. Firstly – Gerhart Pohl mentions the novel “Einhart der Lächler” as one of the main inspirations for taking the literary path. Secondly – Pohl’s first meeting with Carl Hauptmann takes place more than a decade earlier than Pohl’s meeting with Gerhart Hauptmann. Finally – Pohl considers Carl Hauptmann to be a precursor of Expressionism, as well as the author of the greatest German‑language book of the Rübezahl. The source material for the following analysis are Gerhart Pohl’s texts about Carl Hauptmann from his journalistic and occasional texts and essays

    Luehea microphylla Pohl 1833

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    <p> <i>Luehea microphylla</i> Pohl (1833: 129).</p> <p> Type:— BRAZIL. Minas Gerais: Minas Novas, “Habitat inter arbores ad margines fluviorum ad Rio S.Francisco, Capitanae Minas Novas. Legi florentem mense Octobri 1819”, <i>Pohl s.n.</i> (lectotype [as ‘holotype’], first-step designated by Cunha (1985: 10); <b>second-step lectotype, designated here</b>, W! [W0071087]). Minas Gerais: Minas Novas, <i>Pohl s.n.</i> (syntype remaining W! [W0071386]). [= <i>Luehea candicans</i> Mart.]</p> <p> Pohl’s original collection is kept in W where he worked and lived (Stafleu & Cowan 1976 –1988: 315), and where we found only two specimens reported by the author to the name <i>L. microphylla</i> and collected by him in Brazil (B. Wallnöfer, pers. comm.). These two specimens are syntypes of <i>L. microphylla</i>, and the previous typification of Cunha (1985) needs to be corrected (Art. 9.2 of the ICN), since it represents the first-step lectotype of <i>L. microphylla</i> and now requires the second-step typification by the way of subsequent lectotypification (Art. 9.17 of the ICN). For this reason, we designated herein the specimen <i>Pohl s.n.</i> (W0071087) the second-step lectotype of <i>L. microphylla</i>, that agree well with the morphological description presented in the protologue. Based on the type materials, the application of the name <i>L. microphylla</i> Pohl is confirmed as a heterotypic synonym of <i>L. candicans,</i> as previously accepted by Cunha (1985).</p>Published as part of <i>Gerace, Samuele, Bovini, Massimo G., Peruzzi, Lorenzo & Baumgratz, José Fernando A., 2022, Typification of names in the neotropical genus Luehea (Malvaceae: Grewioideae), pp. 180-188 in Phytotaxa 542 (2)</i> on pages 183-184, DOI: 10.11646/phytotaxa.542.2.5, <a href="http://zenodo.org/record/6415980">http://zenodo.org/record/6415980</a&gt

    Illustration 63: Zeitschrift für die Buchillustration: Heft 1/1974

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    This is one of two unusual finds in a lovely Berlin used bookshop. I did not know of the magazine Illustration 63. Antiquariat Ihring had several copies, and I looked through them. Not surprisingly, there were many fables represented in the good artworks reproduced in the issues. I found two especially nicely done and took them along. Each issue of the magazine includes a set of Beilagen, individual pieces printed on their own and included inside the back cover. This issue includes two Beilagen that offer fables. Benno Huth's smaller two-colored linocut presents Canum legati ad Iovem, the dogs sent to Iove. It is a funny illustration. Alfred Pohl presents in larger format a woodcut representing Iriarte's version of Aesop's Two Goats. As might be expected, it is a dynamic illustration. What I seem to be learning from Wikipedia and German Google is that the magazine died after seventy-nine issues.Language note: German#709La Fontain

    Towards a Geography of the (Post-)Political : Rezension zu Swyngedouw, Erik (2018): Promises of the Political. Insurgent Cities in a Post-Political Environment. Cambridge: MIT Press.

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    In seiner jüngsten Monographie Promises of the Political: Insurgent Cities in a Post-Political Environment (2018) widmet sich Erik Swyngedouw der Theorie, der Praxis und den Grenzen des Post-Politischen. Die Debatten rund um die Möglichkeiten und Unmöglichkeiten politischer Emanzipation, die der Autor in Bezug auf die Geographie und Stadtforschung maßgeblich mitgeprägt hat, finden mit diesem Werk eine herausragende Zusammenführung. Über eine Auseinandersetzung mit den Transformationen des Staates, dem politischen Umgang mit dem Klimawandel und den urbanen Protesten der jüngeren Vergangenheit forciert Swyngedouw eine Geographie, welche die Fantasien des Status quo durchquert und für eine radikale Umstrukturierung gesellschaftlicher Kräfteverhältnisse eintritt.  In his recent monograph Promises of the Political: Insurgent Cities in a Post-Political Environment (2018), Erik Swyngedouw explores the theory, practice, and limits of the post-political. The debates surrounding the possibilities and impossibilities of political emancipation, which the author has significantly influenced in geography and urban studies, are brought together in an outstanding way. Through an examination of the transformations of the state, the political management of climate change and the urban protests of the recent past, Swyngedouw promotes a geography that traverses the fantasies of the status quo and stands up for a radical restructuring of the social order. &nbsp

    Data for "Development of novel redox-active organic materials based on benzimidazole, benzoxazole, and benzothiazole – a combined theoretical and experimental screening approach"

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    Calculated structural data of organic redox moieties for the publication: Xhesilda Fataj, Andreas J. Achazi, Philip Rohland, Erik Schröter, Simon Muench, René Burges, K. Linus H. Pohl, Doreen Mollenhauer, Martin D. Hager, Ulrich S. Schubert. "Development of Novel Redox-Active Organic Materials Based on Benzimidazole, Benzoxazole, and Benzothiazole: A Combined Theoretical and Experimental Screening Approach". All structures were optimized at the BP86D3(BJ)/def2-TZVP (DCOSMO-RS) level of theory. The file format is xyz. In the folders are usually subfolders. "n" stands for neutral molecules, "p" stands for plus which means the molecules have a charge of +1, "pp" stands for plusplus which means the molecules have a charge of +2, and "m" stands for minus which means the molecules have a charge of -1. The rotated folder has only the molecules with a charge of +1. It contains the structures calculated with COSMO and in that folder with DCOSMO-RS. The number in front stands for the degree of rotation. You can find the same information in the ReadMe-file included in the zip-archive.Deutsche Forschungsgemeinschaft (DFG); ROR-ID:018mejw64Sonstige Drittmittelgeber/-inne

    Göteborg Jazz Orchestra möter Amanda Ginsburg : konsert på Bigraf Draken, Göteborg

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    Konsert med Göteborg Jazz Orchestra och Amanda Ginsburg på Bigraf Draken, Göteborg 22/10 2023.Sång: Amanda GinsburgSaxofoner: Björn Cedergren, Andreas Hall, Pontus Pohl, Friden Tolke, Andreas ThurfjellTromboner: Jacob Sollerman, Fredrik Wiklund, Anders Carlsson, Ella WennerbergTrumpeter: Clara Lannsjö, Patrik Jansson, Robin Rydqvist, Mats EklundTrummor: Fredrik HamråPercussion: Vanja HolmBas: Matz NilssonPiano: Filip EkestubbeGitarr: Erik WeissglasRepertoaren på konserten 22/10 bestod av följande kompositioner: TUNING UP (Akioshi)EN KVÄLL I SEPTEMBER (Ginsburg/Ekestubbe)GROOVE MERCHANT (Richardson)INNAN DAGEN KOMMER IN (Ginsburg/Ekestubbe)MIN BILD (Ginsburg/Ekestubbe)SECOND TIME AROUND (Van Heusen/Kahn)VARANNAN MINUT (Ginsburg/Ekestubbe)STOCKHOLM SWEETNING (Jones)INNAN DAGEN KOMMER IN (Ginsburg/Ekestubbe)SECRET LOVE (Huggins) Erik Weissglas var solist på följande kompositioner:TUNING UP GROOVE MERCHANT SECOND TIME AROUND STOCKHOLM SWEETNING</p

    Tomas von Brömssen och Göteborg Jazz Orchestra

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    Konsert med Göteborg Jazz Orchestra 9/11 2021 på Jazzklubb Nefertiti i Göteborg.Per Boqvist: TrummorOlli Rantala: BasErik Weissglas GitarrGustav Tysklind PianoTomas von Brömssen Sälgflöjt, KlarinettMichael Andersson PercussionPatrik Jansson, Mats Eklund, Johnny Olson, Robin Rydqvist: TrumpetAndreas Hall, Björn Cedergren, Pontus Pohl, Friden Tolke, Andreas Thurfjell: SaxofonElla Wennerberg, Jakob Sollerman, Andreas Karlsson, Fredrik Wiklund: TrombonRepertoar:Hymn (Riedel)Gravitation (Riedel)Episodes (Hallberg)Orange (Weissglas)Blues In My Shoes (Herboltzheimer)PLS (Johansson)Rotation (Riedel)Seven Steps From Heaven (Davis)G.L (Weissglas)Ragruppamento (Thelin)Gånglåt (Brömssen) Erik Weissglas var solist på PLS, Ragruppamento, Orange, Hymn, G.L.Erik Weissglas komponerade Orange och G.L. </p

    Antonia ovata Pohl var. excelsa Paula ex Paula (Loganiaceae)

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    Neste trabalho são considerados os aspectos morfológicos externo e palinológico de três variedades de Antonia ovata Pohl, ocorrentes na floresta da região do rio Jari (Estado do Pará) e nos cerrados da Amazônia e do Planalto Central brasileiro.In this paper the author studies extern morphological and palinological aspects of the three varieties of the Antonia ovata Pohl: var. ovata, var. pilosa and var. excelsa. The var. excelsa from the woods of region of Jari river (Amazonia), and the var. ovata and var. pilosa from "cerrado" of Amazonia, and Central Brazil. Pollen grains of the two varieties excelsa and ovata present polymorphism. The identification of the three varieties is based on the following characteristics: presence or lack of hairs on the leaves and branches; height and diameter of the specimens; and, finally, the habitat

    Toxicological profile for sulfur dioxide : (update)

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    Prepared by Research Triangle Institute under Contract No. 205-93-0606 to the U.S. Dept. of Health and Human Services, Public Health Service, Agency for Toxic Substances and Disease Registry.Chemical manager(s)/author(s): Hana Pohl, ATSDR, Division of Toxicology, Atlanta, GA; John Liccione, Annette Iannucci, Sciences International, Inc., Alexandria, VA.Includes bibliographical references (p. 147-182).205-93-060
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