901 research outputs found
Johannes Dreyer (1500–1544) – Die Hervormer van Herford
No full textDuring 2017, churches with roots in the 16th century Reformation look back at five centuries of reformed Christianity. Much attention is given to important leaders of the Reformation such as Luther and Calvin. However, there are many forgotten ‘heroes’ who will receive no accolades, nor will they be mentioned in any publication. In this contribution the author tells the story of dr Johannes Dreyer, the forgotten reformer of Herford in Westphalia (Germany). After giving some biographical and contextual information, Dreyer’s church order, which was published in 1534 in Wittenberg, is discussed in terms of language, structure and theological content. The conclusion is reached that the implementation of new church orders were an integral part of the reformation process as well as applying reformed doctrine to the practical situation of churches
Johannes Dreyer (1500–1544) – die Hervormer van Herford
No full textDuring 2017, churches with roots in the 16th century Reformation look back at five centuries
of reformed Christianity. Much attention is given to important leaders of the Reformation such
as Luther and Calvin. However, there are many forgotten ‘heroes’ who will receive no
accolades, nor will they be mentioned in any publication. In this contribution the author tells
the story of dr Johannes Dreyer, the forgotten reformer of Herford in Westphalia (Germany).
After giving some biographical and contextual information, Dreyer’s church order, which was
published in 1534 in Wittenberg, is discussed in terms of language, structure and theological
content. The conclusion is reached that the implementation of new church orders were an
integral part of the reformation process as well as applying reformed doctrine to the practical
situation of churches.http://www.hts.org.zaam2017Church History and Church Polic
Influence of the tip gap size on the development of the tip-leakage vortex using Large Eddy Simulations
No full textIn hydraulic turbines, the tip-leakage vortex is responsible for flow instabilities and for promoting erosion due to cavitation. To better understand the flow in the tip region, LES computations are carried out to compute the flow around a NACA0009 blade including the gap between the tip and the wall. The influence of the gap size is investigated by computing two gap widths. The validation of the results is performed by comparisons with experimental data. The simulations are also used to investigate the flow in the tip gap region. Depending on the gap width, the vortex flow topology differs from one case to the other. At large gap widths, the tip-leakage vortex merges with the tip-separation vortex. On the contrary, at small gap widths, the tip-leakage vortex move upward and no tip-separation vortex is clearly identified. Part of these observations are validated by comparisons with experimental visualizations of the cavitating tip-leakage vortex
After Constantine\u27s Sword: The Past, Present, and Future of Jewish-Christian Relations
No full textAn Interfaith Conversation with award-winning author: James Carroll. With responses by: Dr. Ellen M. Umansky, Carl and Dorothy Bennett Professor of Judaic Studies and Dr. Elizabeth A. Dreyer, Professor of Religious Studies. Also participating: Bill Huselman \u2798; M.T.S. Harvard Divinity School, \u2701.https://digitalcommons.fairfield.edu/bennettcenter-posters/1216/thumbnail.jp
The Transcendental Style of Carl Theodor Dreyer in the Context of Auteur Theory
No full textOvaj rad istražuje opus danskog redatelja Carla Theodora Dreyera kroz spoj autorske teorije i
pojma transcendentnog stila. Oslanjajući se na analizu Paula Schradera u djelu
Transcendentni stil na filmu: Ozu, Bresson i Dreyer (1972), autorovo stvaralaštvo obrađeno je
iz perspektive autorske teorije kao krucijalnog modela promišljanja i sintetiziranja autorove
poetike, tema kojima se bavio, kao i formalnih rješenja koja se podudaraju ili odstupaju od
Schraderovih teza. U tom kontekstu, kao drugi najvažniji oslonac rada poslužilo je djelo The
Films of Carl-Theodor Dreyer (1981) Davida Bordwella, koje nudi širu sliku Dreyerovih
autorskih preokupacija i specifičnog stila koji je razvio kroz svoj opus. Nakon elaboriranja
teorijskog polazišta (autorske teorije i transcendentnog stila), rad istražuje autorske uzorke,
kao i njihove varijacije kroz analizu ključnih filmova – od tragova transcendentnog stila u
ranim filmovima koji kulminiraju u Stradanju Ivane Orleanske (1928) pa sve do posljednjeg
redateljevog ostvarenja Gertrud (1964). Rad razmatra formalne značajke poput krupnog
plana, tabloa, otklona od klasičnog narativnog stila montažnim, dramaturškim i
mizanscenskim postupcima, koje tvore Dreyerov jedinstveni stil. Usporedbom s
transcendentnim stilom, kako ga definira Schrader, zaključuje se da Dreyerova poetika koristi
elemente religijskog i duhovnog diskursa, ali samo kao dijelove njegovog filmskog izričaja.
Dreyer je tako autor koji potiče na promišljanje kanona, kao i strogo određenih kategorija
filmske povijesti. Time se otvara prostor za preispitivanje postojećih modela filmske
historiografije.This thesis explores the oeuvre of Danish director Carl Theodor Dreyer through the
intersection of auteur theory and the concept of the transcendental style. Relying on Paul
Schrader’s analysis in Transcendental Style in Film: Ozu, Bresson, Dreyer (1972), Dreyer’s
work is examined from the perspective of auteur theory as a crucial model for interpreting and
synthesizing the director’s poetics, his recurring themes, and the formal strategies that either
correspond to or deviate from Schrader’s theses. Within this framework, the second key
reference point of the thesis is David Bordwell’s The Films of Carl-Theodor Dreyer (1981),
which offers a broader view of Dreyer’s authorial preoccupations and the specific style he
developed throughout his career. After outlining the theoretical foundations of the study
(auteur theory and the transcendental style), the thesis investigates recurring authorial patterns
and their variations through an analysis of Dreyer’s key films. From traces of the
transcendental style in his early works culminating in The Passion of Joan of Arc (1928) to his
final film Gertrud (1964). The analysis considers formal features such as the close-up, tableau
composition, and deviations from classical narrative style through editing, dramaturgy, and
mise-en-scène, all of which constitute Dreyer’s unique cinematic language. By comparing
Dreyer’s work with the transcendental style as defined by Schrader, the thesis concludes that
Dreyer’s poetics simultaneously draw upon elements of religious and spiritual discourse, yet
employ them only as elements of his broader cinematic expression. Dreyer thus emerges as an
author who challenges canonical boundaries as well as rigid categories of film history,
opening a space for rethinking existing models of film historiography
PALOMERA ERA Wide Survey Dataset
No full textDreyer M, Tummes J-P, Graham S. PALOMERA ERA Wide Survey Dataset. Bielefeld University; 2024.This dataset was created as part of the PALOMERA survey on open access policies for books in the European research area (focusing on the needs, obstacles and challenges of policy-making for open access books).
Funded by the European Union. Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the Agency. Neither the European Union nor the granting authority can be held responsible for them. </div
Bibliographie
No full textArtaud, Antonin, Van Gogh, le suicidé de la société, Paris, Gallimard, 1974. Bareyre, Matthieu, Revue des livres, Critikat.com, 29 janvier 2013. Bazin, André, Qu’est-ce que le cinéma ? Paris, Cerf, 2007. Bresson, Robert, Notes sur le cinématographe, Paris, Gallimard, 1975. Cervantes, Miguel de, Don Quichotte, Œuvres romanesques I, Paris, Gallimard, « Bibliothèque de la Pléiade », 2001. Dreyer, Carl Th., Réflexions sur mon métier, Paris, Cahiers du cinéma, 1983. Drouzy, Maurice, Carl Th. Dreye..
Pseudexogone helmuti Salazar-Vallejo & Bailey-Brock & Dreyer 2007, n. sp.
No full text<i>Pseudexogone helmuti</i> n. sp. <p>(Fig. 5)</p> <p> TYPE MATERIAL. — <b>Southern Indian Ocean.</b> Off Saint-Paul Island, <i>Marion Dufresne</i>, campagne MD50 JASUS, stn 20-DC 91, 38°47’67”S, 77°27’11”E, 17.VII. 1986, 975 m, very compacted fine sand, holotype (MNHN-1482); paratypes (12 in MNHN, 6 in ECOSUR, including SEM specimen).</p> <p>TYPE LOCALITY. — Off Saint-Paul Island, southern Indian Ocean, in deep water.</p> <p>ETYMOLOGY. — This species is named after Helmut Zibrowius, author of many important publications on serpulid polychaetes, and who participated in several cruises, including the one on which the specimens of this new species were collected.</p> <p>DISTRIBUTION. — Only known from the type locality, off the Saint-Paul Island, southern Indian Ocean, in about 1000 m depth.</p> <p>DESCRIPTION</p> <p>Holotype complete, transparent; body tapering posteriorly, 7.5 mm long, 0.25 mm wide, with 42</p> <p>chaetigers. Prostomium subtriangular, about as long as wide, slightly narrower than peristomium (corrugated in SEM specimens). Three antennae, all cirriform of about the same size; laterals placed by the prostomial middle, median placed over the posterior prostomial margin. Eyes not visible. Palps tapering, separated distally, in SEM specimens distorted, free from each other (Fig. 5 A-C), each provided with a ventrolateral papilla (Fig. 5B, C), as long as antennae, placed about the half of the palp length. Tentacular cirri cirriform, dorsal cirri slightly longer; ciliary bundles eroded (Fig. 5B).</p> <p>Parapodia uniramous in chaetigers 1-6, thereafter biramous. Parapodial cirri cirriform throughout body. Anterior parapodia with two denticulate capil- laries, one pectinate, and one furcate neurochaetae (Fig. 5D). Notopodia with large sigmoid bidentate spines starting in chaetiger 7, continued to last chaetiger. Neuropodia includes furcates in anterior chaetigers, pectinates and denticulate capillaries, most broken.Furcates with unequal tines, longer tine with a flaring blade not reaching the blunt digitate smaller tine. Median chaetigers (Fig. 5E) with slightly emergent notospines, parapodial cirri digitate, dorsal cirri larger than ventral cirri. Chaetal lobe conical, with 2 denticulate capillaries and 1 or 2 pectinates. Bidentate curved notospines more exposed in posterior chaetigers (Fig. 5F), each with rounded larger subdistal tooth, and a smaller, probably eroded, apical tooth. In median and posterior chaetigers, broken pectinates resemble furcates but they differ.</p> <p>Posterior end tapering. No achaetous segments. Pygidium conical, blunt, with two lateral anal cirri. Anus terminal. Pharynx not everted, as long as first 4 chaetigers in length.</p> <p>VARIATION</p> <p>The complete paratypes were 5.0- 5.8 mm long, 0.15-0.25 mm wide, with 34-40 chaetigers.The start of notospines was in chaetiger 7. One with unbroken chaetae had two of each: furcates, pectinates and denticulate capillaries. There were no prepygidial achaetous segments. One paratype had its pharynx everted; it is made of two muscular rings with an apparently smooth margin.</p> <p>REMARKS</p> <p> <i>Pseudexogone helmuti</i> n. sp. is the only described species of the genus living in almost 1000 m depth. It resembles <i>P. dineti</i> n. comb. by lacking eyes but they differ in the relative development of the blade of furcates; it is straight in <i>P. helmuti</i> n. sp. while it is curved in <i>P. dineti</i> n. comb.</p>Published as part of <i>Salazar-Vallejo, Sergio I., Bailey-Brock, Julie H. & Dreyer, Jennifer C., 2007, Revision of Pseudexogone Augener, 1922 (Annelida, Polychaeta, Syllidae), and its transfer to Pilargidae, pp. 535-553 in Zoosystema 29 (3)</i> on pages 544-547, DOI: <a href="http://zenodo.org/record/4689932">10.5281/zenodo.4689932</a>
Mind The Gap : Tip Leakage Vortex Dynamics and Cavitation in Axial Turbines
No full textThe tip leakage vortex (TLV), which develops in the clearance between the blade tip and the casing of axial turbomachines, appears in many industrial applications, such as air transportation, space rockets and hydraulic machines. In the latter, cavitation may develop in the core of the TLV, often leading to severe erosion of the runner blades and the casing. Despite the progress achieved in understanding and controlling the dynamics of this particular flow, many associated phenomena are still not sufficiently explored. It remains, for instance, unclear how the clearance size is related to the occurrence of cavitation in the TLV. The present work contributes to this research by assessing the effect of the clearance size on the TLV intensity and dynamics in a simplified case study. The vortex is generated by a two dimensional generic blade in a water tunnel, while the clearance between the blade tip and the wall is varied. The properties of the TLV are established with the help of stereo-PIV and flow visualizations for a wide range of incidence angles, inlet velocities and tip clearances. The measurements clearly reveal the existence of a specific tip clearance for which the vortex intensity is at its maximum and most prone to generate cavitation. By introducing a new dimensionless coefficient , where is the normalized clearance and is the normalized circulation in the unconfined case, it is established that the TLV circulation reaches a peak intensity for , the amplitude of which is in average 45 (10) \% higher than in the unconfined case, regardless of the operating conditions. The change in the vortex structure due to cavitation occurrence is also investigated in a different case study by means of PIV using fluorescent seeding particles. A vortex is generated by an elliptical hydrofoil and the velocity field outside the vapor phase is compared with the one in cavitation-free conditions. It is found that the cavitation does not change the vortex circulation, since the tangential velocity distribution of the cavitating vortex is identical to the non-cavitating vortex far from the vapor core. The tangential velocity close to the vapor core is however lower than in cavitation-free conditions. Moreover, the fluid is in solid body rotation in the vicinity of the liquid-gas interface. The alteration of the clearance geometry with shallow grooves to manipulate the gap flow and control the TLV intensity is evaluated in the simplified case study. The cavitation in the TLV and in the clearance region is significantly reduced with grooves located near the foil leading edge, oriented at 45 or 90 relative to the incoming flow. This result paves the way for further investigations, which may ultimately lead to TLV cavitation mitigation in axial turbines.LM
- …
