503 research outputs found
Feldman, Harry A. -- 1950 -- Correspondence, Toxoplasmosis -- letter, 1950-07-29
No full textLetter from Neidhardt, H. W. to Sabin, Albert B. dated 1950-07-29.Sabin Collection Fair Use Policy</a
First proof of concept of remote attendance for future observation strategies between Wettzell (Germany) and Concepción (Chile)
No full textCurrent VLBI observations are controlled and attended locally at the radio telescopes on the basis of pre-scheduled session files. Operations have to deal with system specific station commands and individual setup procedures. Neither the scheduler nor the correlator nor the data-analyst gets real-time feedback about system parameters during a session. Changes in schedules after the start of a session by remote are impossible or at least quite difficult. For future scientific approaches, a more flexible mechanism would optimize the usage of resources at the sites. Therefore shared-observation control between world-wide telescope s, remote attendance/control as well as completely unattended-observations could be useful, in addition to the classic way to run VLBI observations. To reach these goals, the Geodetic Observatory Wettzell in cooperation with the Max-Planck-Institute for Radio Astronomy (Bonn) have developed a software extension to the existing NASA Field System for remote control. It uses the principle of a remotely accessible, autonomous process cell as server extension to the Field System on the basis of Remote Procedure Calls (RPC). Based on this technology the first completely remote attended and controlled geodetic VLBI session between Wettzell, Germany and Concepción, Chile was successfully performed over 24 hours. This first test was extremely valuable for gathering information about the differences between VLBI systems and measuring the performance of internet connections and automatic connection re-establishments. During the 24h-session, the network load, the number of sent/received packages and the transfer speed were monitor ed and captured. It was a first reliable test for the future wishes to control several telescopes with one graphical user interface on different data transfer rates over large distances in an efficient way. In addition, future developments for an authentication and user role management will be realized within the upcoming NEXPReS project
Spatiotemporal simulation of nickel oxide and carbon phases formation in solid oxide fuel cells (SOFC)
No full textThe formation of secondary phases in the porous electrodes is a severe mechanism affecting the
lifetime of solid oxide fuel cells (SOFC). It can occur via various chemical mechanisms and it has a
significant influence on cell performance due to pore clogging and deactivation of active surfaces and
triple-phase boundary (TPB). We present a modeling and simulation study of nickel oxide formation
(reoxidation) and carbon formation (coking) within the SOFC anode.
We use a 2D continuum model based on a multi-phase framework [Neidhardt et al., J. Electrochem.
Soc., 159, 9 (2012)] that allows the introduction of arbitrary solid phases (here: Ni, YSZ, NiO,
Carbon) plus gas phase. Reactions between the bulk phases are modeled via interface-adsorbed species
and are described by an elementary kinetic approach. Published experimental data are used for
parameterization and validation. Simulations allow the prediction of cell performance under critical
operation conditions, like (i) a non-fuel operation test, where NiO formation is taking place (Figure
1a), or (ii) an open circuit voltage (OCV) stability test under hydrocarbon atmosphere, where solid
carbon is formed (Figure 1b). Results are applied for enhanced interpretation of experimental data and
for prediction of safe operation conditions
Soziologie als Beruf in der Universität: autobiographische Notizen
No full textDaheim H. Soziologie als Beruf in der Universität: autobiographische Notizen. In: Bolte KM, Neidhardt F, eds. Soziologie als Beruf: Erinnerungen westdeutscher Hochschulprofessoren der Nachkriegsgeneration. Soziale Welt: Sonderband, 11. Baden-Baden: Nomos-Verl.-Gesellschaft; 1998: 315-329.In einer autobiographischen Skizze versucht der Autor, seine Arbeitserfahrungen und das Konzept der Soziologie darzustellen, wie es sich im Laufe der Jahre in der Verschränkung von Karrierestufen und Themen herausgebildet hat. Für zukunftsträchtig hält er folgendes Verständnis der Soziologie: auf gesellschaftspolitische Probleme gerichtet, im Rahmen einer historisch fundierten Zeitdiagnostik an einer Gesellschaftstheorie orientiert, im Austausch mit sog. 'Praktikern' und nicht zuletzt, auf der Höhe der theoretischen und methodischen Entwicklungen in den Sozialwissenschaften betrieben, was eine gewisses Maß an interdisziplinärer Zusammenarbeit verlangt. Theoretisch stehen die Kategorien 'Situation' und 'Erwartung' im Mittelpunkt. Das Konzept 'Orientierung' schlägt im parsonsschen Sinne ein Brücke zum Persönlichkeitssystem, ohne dabei auf das Gebiet der Sozialpsychologie zu geraten. (pre
TourExplain: A Crowdsourcing Pipeline for Generating Explanations for Groups of Tourists
No full textWhen a group is traveling together it is challenging to recommendan itinerary consisting of several points of interest (POIs). Thepreferences of individual group members often diverge, but it isimportant to keep everyone in the group satisfied during the entiretrip. We propose a method to consider the preferences of all thepeople in the group. Building on this method, we design expla-nations for groups of people, to help them reach a consensus forplaces to visit. However, one open question is how to best formu-late explanations for such sequences. In this paper, we introduceTourExplain, an automated crowdsourcing pipeline to generate andevaluate explanations for groups with the aim of improving ourinitial proposed explanations by relying on the wisdom of crowds.Accepted author manuscriptWeb Information System
Conversational Recommender Systems Using Generative Models (Gen-CRS): Literature Review
No full text<h2>Description</h2>
<p>This dataset contains a curated list of 49 research papers focused on Conversational Recommender Systems using Generative Models (Gen-CRS). The collection covers publications from 2018 to 2025 and reflects the rapid evolution of generative approaches in conversational recommendation scenarios.</p>
<p><br>The dataset was compiled in the context of the literature review “<a href="https://www.researchgate.net/publication/398319946_Conversational_Recommender_Systems_Using_Generative_Models_Gen-CRS_A_Literature_Review" target="_blank" rel="noopener">Conversational Recommender Systems Using Generative Models (Gen-CRS): A Literature Review</a>” and the tutorial “<a href="https://dl.acm.org/doi/10.1145/3705328.3748010" target="_blank" rel="noopener">A Tutorial on Recent Advances in Generative Conversational Recommender Systems</a>”, presented at the <a href="https://recsys.acm.org/recsys25/tutorials/" target="_blank" rel="noopener">ACM RecSys conference 2025</a>. It serves as the bibliographic foundation for both contributions and is intended to support transparency, reproducibility, and further research in this area.</p>
<p>Each entry in the dataset corresponds to a single paper relevant to Gen-CRS, and the selection process, collection methodology, and inclusion criteria are provided in the accompanying literature review paper.</p>
<h2>Dataset Structure</h2>
<p>The dataset is organized in a tabular format, where each row corresponds to a single publication included in the literature collection. Rows contain the essential bibliographic metadata required to identify and retrieve the original paper.</p>
<h3>The dataset includes the following columns:</h3>
<ul>
<li><strong>Paper title:</strong> Full title of the publication</li>
<li><strong>Author(s):</strong> Names of all authors as reported in the original paper</li>
<li><strong>Year:</strong> Year in which the paper was published</li>
<li><strong>Published at:</strong> Conference, workshop, journal, or other venue where the work appeared</li>
<li><strong>Reference Link/DOI:</strong> Persistent link to access the published document (e.g., DOI, publisher URL, or preprint reference)</li>
</ul>
Entwicklung einer Methodenbibliothek zur genauen Positionsbestimmung beliebiger Objekte mit echtzeitnaher Bildverarbeitung
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