49 Works

Digging into Eocene hothouse climate variability: Linking X-ray fluorescence (XRF) scanning and palynology of Messel sediment cores

Stefanie Kaboth-Bahr , André Bahr , Olaf Lenz , Volker Wilde , Sonja Wedmann & Jörg Pross
The late early to early middle Eocene (~48 Ma) maar lake sediments of the famous Messel fossil-pit, located near Darmstadt, SW Germany, represent a prime archive for climate dynamics operating during the geologically most recent greenhouse period of the Earth. In this study, we investigate the potential of geochemical data obtained via high-resolution XRF core scanning to decipher hydrologic variability from the Messel sediments. Such data have the potential to yield insight into the paleoenvironmental...

Learning Analytics Anwendungen für den Hochschuleinsatz

Tim Steuer, Oliver Herrmann, Christoph Rensing & Hendrik Drachsler

Abgeleitete Textformate: Text und Data Mining mit urheberrechtlich geschützten Textbeständen

Christof Schöch, Frédéric Döhl, Achim Rettinger, Evelyn Gius, Peer Trilcke, Peter Leinen, Fotis Jannidis, Maria Hinzmann & Jörg Röpke
Das Text und Data Mining (TDM) mit urheberrechtlich geschützten Texten unterliegt trotz der TDM-Schranke (§ 60d UrhG) weiterhin Einschränkungen, die u. a. die Speicherung, Veröffentlichung und Nachnutzung der entstehenden Korpora betreffen und das volle Potenzial des TDM in den Digital Humanities ungenutzt lassen. Als Lösung werden abgeleitete Textformate vorgeschlagen: Hier werden urheberrechtlich geschützte Textbestände so transformiert, dass alle wesentlichen urheberrechtlich relevanten Merkmale entfernt werden, verschiedene einschlägige Methoden des TDM aber weiterhin zum Einsatz kommen können....

Stabian Baths in Pompeii. New Research on the Archaic Defenses of the City

Mark Robinson, Monika Trümper, Clemens Brünenberg, Jens-Arne Dickmann, Domenico Esposito, Antonio F. Ferrandes, Giacomo Pardini, Alessandra Pegurri & Christoph Rummel
The plan of the Archaic city of Pompeii and the existence of a distinct walled Altstadt have been much debated in scholarship. The area of the Stabian Baths plays a key role in this debate. Based on a series of excavations in the palaestra of the baths, Heinrich Sulze (1940) and particularly Hans Eschebach (1970s) reconstructed a defensive wall and parallel ditch in this area. Eschebach also identified an Archaic street and city gate in...

Plurilingual School and University Curricula

Schlabach Joachim & Britta Hufeisen
This contribution introduces plurilingual curricula as a development tool geared both to linking up the curricula of individual languages and fostering cross-linkages between language and content subject curricula. This approach represents a solid fundament for tertiary language didactics and can also supply a common foundation for school and university language learning policies and relevant school-university cooperation projects. The principle underlying (genuinely!) plurilingual university courses based on research and featuring a doubly multilingual didactic approach is...

Good Engineering Design - Design Evolution by Languages

Peter Pelz
This essay for the inaugural issue of Technology and Language shows that the mastery of multiple languages is the enabler for good engineering design. Engineers express ideas and for that they need expressive design languages. If a language is a structured system of symbols serving communication, the languages of engineering include German, English, and Russian, mathematical and programming languages, technical drawing and formal modelling, with abstract design elements constituting a further, engineering-specific language. The semantics...

Teaching English as a Language for Mechanical Engineering

Eduard Krylov, Liudmila Khalyapina & Alfred Nordmann
Engineering education usually includes the acquisition of a foreign language for a transnational professional discourse. Engineering education also involves the acquisition of competencies to compose functional technical systems from component parts. This paper provides a conceptual and empirical exploration of a synergistic effect between these two learning processes. It proposes that engineering education draw upon and incorporates this synergy. A pilot training course confirms that this leads to a faster development of the overall engineering...

Sediment production under semi-arid climatic conditions using heavy mineral and petrographical data – a case study from the recent Kunene river system, northern Namibia

Jonas Kraus, Ali Abbas Wajid, Laura Stutenbecker & Matthias Hinderer
Provenance techniques are widely applied in resolving the origin of ancient sediment successions. Petrographic signatures, however, are controlled by a complex interplay of rock type, weathering mode as well as sediment transport, thus making the interpretation of data often ambiguous. One way to improve our understanding on these mechanisms is to study modern drainage systems. We selected the Kunene River in northern Namibia as a case study. This river system is well suited for such...

Insights from surface analogues of the Odenwald into the structural architecture of crystalline units in the Northern Upper Rhine Graben

Claire Bossennec , Matthis Frey , Lukas Seib , Jeroen van der Vaart , Kristian Bär & Ingo Sass
The Upper Rhine Graben (URG) is a target area for deep geothermal and heat storage projects, as petrophysical and hydraulic properties of the faulted crystalline basement rocks, and the temperature field comprise a high geothermal potential (Soultz-sous-Forêts, Landau, Insheim, Rittershoffen). However, there is a lack of knowledge on the multi-scale structural architecture of such rock units in fault zones. Therefore, a multi-scale structural analysis is performed on surface analogues to improve the conceptual crystalline reservoir...

Rock alteration at the post-Variscan nonconformity: implications for Permo-Carboniferous surface weathering versus burial diagenesis

Fei Liang , Adrian Linsel , Matthias Hinderer , Jens Hornung , Dirk Scheuvens & Rainer Petschick
Nonconformity surfaces are key features to understand the relations among climate, lithosphere and tectonic movements in Earth history. One of the most prominent stratigraphic surfaces in Central European is the post-Variscan nonconformity separating the metamorphic Variscan basement from non-metamorphic platform deposits starting in the Upper Carboniferous, but more widely distributed since the Permian. This study aimed to analyze and distinguish the physical and chemical processes happening during exposure of the surface as well as during...

Reasons and implications of fossil hydraulic gradients in large-scale aquifer systems

Stephan Schulz , Hyekyeng Jung , Marc Walther , Nils Michelsen , Randolf Rausch & Christoph Schüth
Due to limited availability of surface water, many arid and semi-arid countries have to rely on their groundwater resources. Despite the quasi-absence of present-day replenishment, some of these aquifers contain large amounts of water that was recharged during wetter periods in the past. Although these recharge events often occurred several thousand years ago, some of these so-called fossil aquifer systems exhibit considerable hydraulic gradients and flow towards their discharge areas, even without pumping. As a...

Stormwater harvesting in ephemeral streams: how to effectively bypass clogging layers and thick vadose zones

Jose David Henao Casas , Fritz Kalwa , Marc Walther & Randolf Rausch
In drylands, stormwater is often collected in surface basins and subsequently stored in shallow aquifers via infiltration to cope with water scarcity. These groundwater recharge schemes are often accompanied by high evaporation rates and hygiene problems due to low infiltration rates, which are a consequence of clogging layers on the topsoil and the presence of a thick vadose zone. The present study aims to develop a conceptual solution to increase groundwater recharge rates in stormwater...

Wie ›Der Mann auf dem Hochrad‹ den Protagonisten des ›Schlangenbaums‹ auf Abwege führte. Hypothesengeleitete stilometrische Untersuchung zweier Romane Uwe Timms

Mareike Schumacher
Gegenstand dieses Artikels ist die Verknüpfung einer hypothesengeleiteten literaturwissenschaftlichen Fallstudie mit der Anwendung von Digital-Humanities-Verfahren. Primärtexte der Analyse sind dreizehn längere Erzähltexte des deutschsprachigen Gegenwartsautors Uwe Timm (Romane und Novellen, eine »Legende«). Aus einer seiner Selbstaussagen zum Werk leite ich Thesen ab, die ich mittels computergestützter stilometrischer Verfahren analysiere. Ziel ist es, eine Brücke zwischen einer computationellen Analyse und menschlichen Lesarten zu schlagen, um so zu neuen Einsichten über das literarische Werk des Autors zu...

Rückwärts gekehrte Propheten

Gerrit Jasper Schenk
Against the background of the recent corona pandemic, this article highlights new research on epidemics of the late Middle Ages and the beginning Early Modern Era. What kind of knowledge can be gained for the present by looking back at the epidemics of the past? Two examples are taken into consideration, one is the pandemic known as Black Death, ravaging the Eurasian continent since the middle of the 14th century, the other is the so-called...

How scarce is our water? An analysis of the present and future world water situation

Randolf Rausch
Technische Universität Darmstadt, Germany

If you look at the media, you come across new horror stories about water almost every day. Experts warn of a life-threatening global water crisis. Reports of droughts, wars for water, poisoned water and the end of our water resources are fuelling fears to die of thirst or of running out of water. How realistic is this news? Is this the truth or is this information the typical hype...

First and Last Things: The Signatures of Visualization-Artists

Alfred Nordmann
Nanotechnology began for real when Don Eigler and Erhard Schweizer used 35 xenon-atoms to spell the name of their sponsor “IBM.” The resulting image has since been called “The Beginning” and, indeed, physical processes at the molecular level have since been used countless times to write the names of laboratories and sponsors and sometimes logos (including, of course, the White House and the American Flag). Indeed, when we conquer new territory, we tend to mark...

Pflanzengesellschaft des Jahres 2021: Hartholz-Auenwald (Ficario-Ulmetum)

Werner Härdtle, Erwin Bergmeier, Andreas Fichtner, Thilo Heinken, Norbert Hölzel, Dominique Remy, Simone Schneider, Angelika Schwabe, Sabine Tischew & Hartmut Dierschke
Hardwood floodplain forests (Ficario-Ulmetum, Syn.: Querco-Ulmetum), being amongst the most endangered plant communities in Germany, have been selected as ‘Plant community of the year 2021’ by the Floristisch-soziologische Arbeitsgemeinschaft. Hardwood floodplain forests are temperate low-land broad-leaved forest ecosystems typical of extensive river valleys. In Central Europe, stands represent biodiversity hotspots for woody species (as habitats for rare tree species such as Ulmus laevis and Populus nigra), but also host numerous fungi and animal species typical...

In the Beginning was the Word

Alfred Nordmann & Daria Bylieva
The problem of modernity haunts the Western tradition of philosophy and moves us from disenchantment and disempowerment of the word to its reenchantment. If critical reasoning exorcised the magic power of the word, technological achievements of control reinstated it. More straightforwardly, perhaps, Russian thought traditionally viewed the word as a "technical" or "magical" artifact capable of changing the world. In the beginning was God‘s word but are also the words which open the world of...

Ackerwildkraut-Vegetation der Kalkäcker (Caucalidion): Pflanzengesellschaft des Jahres 2022

Erwin Bergmeier, Stefan Meyer, Fionn Pape, Hartmut Dierschke, Werner Härdtle, Thilo Heinken, Norbert Hölzel, Dominique Remy, Angelika Schwabe, Sabine Tischew & Simone Schneider
Als Pflanzengesellschaft des Jahres 2022 ist die Ackerwildkraut-Vegetation der Kalkäcker, der Ver- band Caucalidion, ausgewählt worden. In diesem Übersichtsartikel stellen wir den Verband vor und betrachten dabei seine Artenzusammensetzung und -diversität, Verbreitung, standörtliche und pflanzen- soziologische Variabilität, das Ökosystem „Kalkacker”, die früher und heute wirksamen Faktoren des Ackerbaus und die Ursachen des massiven Rückgangs in den letzten Jahrzehnten. Schließlich beleuch- ten wir Optionen zur Erhaltung und Wiederherstellung artenreicher Caucalidion-Vegetation und der von ihnen abhängigen Lebensgemeinschaften....

Politics of Usernames

Matthias Hess
We interact with usernames every day to communicate on the Internet. We are so familiar with this practice that it seems banal and we therefore fail to see the political implications associated with it. This article aims to help uncover this political dimension of the username. At first, the article follows the argumentation of two texts by Jacques Derrida, from where I establish a connection between the phenomena of proper names and usernames. Derrida deconstructed...

Hydro-mechanical parameters of Cornubian and Odenwald reservoir granitoids with focus on fracture stiffness testing

Lena Muhl , Guido Blöcher , Ingo Sass , Christian Kluge & Tanja Ballerstedt
For the resource development, geothermal systems need to be improved to increase the profitability of the investment. One aspect to support this aim is the reservoir productivity, a key parameter, which depends on the hydraulic and mechanical properties of the reservoir formation. In order to develop possible improvement strategies for the profitability enhancement of geothermal reservoirs and/or nuclear waste repositories, hydraulic and mechanical properties of artificial generated fractures were investigated. The importance of the fracture...

SpannEnD - The crustal stress state of Germany

Steffen Ahlers , Andreas Henk , Tobias Hergert , Karsten Reiter , Birgit Müller , Luisa Röckel , Oliver Heidbach , Sophia Morawietz , Magdalena Scheck-Wenderoth & Denis Anikiev
Information about the recent stress state of the upper crust is important for understanding tectonic processes and for the use of the underground in general. A currently important topic, the search for a radioactive waste deposit, illustrates this relevance, as the crustal stress state is decisive for the short and long-term safety of a possible repository. For example, the integrity of the host rock due to the activation or reactivation of faults and associated fluid...

Structural and Geophysical Characterisation of the Crystalline Basement in the Northern Upper Rhine Graben

Matthis Frey , Claire Bossennec , Lukas Seib , Kristian Bär & Ingo Sass
In the northern Upper Rhine Graben (URG), the crystalline basement constitutes an attractive target for deep geothermal exploitation due to the favourable reservoir temperatures and abundance of natural fractures and large-scale faults. Consequently, especially the upper, hydrothermally altered part is already successfully used for heat and power generation at several locations (Insheim, Landau, Rittershoffen and Soultz-sous-Forêts). Nevertheless, because of the small number of very deep boreholes drilled into the crystalline basement, little is known about...

Effect of the fracture aperture distribution on the heat extraction performance from the fractured geothermal systems

Saeed Mahmoodpour , Mrityunjay Singh , Kristian Bär & Ingo Sass
Fractures are main flow paths for heat extraction from fractured geothermal systems. The process of injecting cold water to extract hot water from a fractured reservoir results in thermal and poroelastic stresses in the rock matrix. Therefore, these thermo-hydro-mechanical (THM) mechanisms govern the efficiency of an enhanced geothermal system (EGS) operation. Fractures’ aperture is a controlling factor for the heat extraction efficiency. Due to the lack of field and experimental works, a constant aperture is...

Registration Year

  • 2022
    32
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    13
  • 2020
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Resource Types

  • Text
    49

Affiliations

  • Technical University of Darmstadt
    24
  • TU Darmstadt
    23
  • Helmholtz Centre Potsdam - GFZ German Research Centre for Geosciences
    5
  • University of Potsdam
    4
  • Karlsruhe Institute of Technology
    4
  • University of Münster
    3
  • Goethe University Frankfurt
    3
  • Helmholtz Centre for Environmental Research
    2
  • Anhalt University of Applied Sciences
    2
  • National Autonomous University of Mexico
    2