Technische Hochschule Würzburg-Schweinfurt Publikationsserver OPUS
Not a member yet
5300 research outputs found
Sort by
Financing Sustainability Change in Germany: SDG Implementation in UmweltBank AG
No full textThe chapter presents the emergence and transformation of the business model of a bank that was one of the first banks in Germany to fundamentally commit to sustainability: UmweltBank AG Nuremberg. In addition to the emergence and fundamental development of the bank, principles, business objectives, challenges, and steps for the development of its own sustainability strategy are highlighted. The chapter provides reflection questions that simplify a swing into the “road of sustainability” as a model for medium-sized companies and shows the successful realignment of the bank to the SDGs of the United Nations, with which UmweltBank actively and profitably shapes its mission in the transformation process to a sustainable economy and society
Possibilities and limitations of active battery management systems for lithium-ion batteries
No full textLithium-Ion Batteries (LIBs) are being used in more and more areas of application. At the same time, their chemical composition and their designs are constantly evolving. Major developments are also taking place in the field of Battery Management Systems (BMSs), which are essential for the safe operation of LIBs. The focus is on intelligent charge redistribution between individual cells, called Active Balancing (AB). This thesis deals with the possibilities and limitations of AB. An empirical long-term experiment provides new insights into the ageing behaviour of batteries that are actively balanced during their entire service life. The main objective of this work is to to demonstrate influences on the ageing behaviour of batteries that are still unknown at present. A literature study shows that previous work in this area is often based on theoretical approaches and rarely has a functional proof through measurement results. Most significant statements from literature are examined. These include the increase in discharge capacity, energy efficiency and service life associated with AB, as well as lower parameter variation of the individual cells installed in the battery. Before starting the empirical experiment, the current state of the art is captured and a universal AB topology is selected from a large number of known systems. The operating behaviour as well as the balancing algorithms are explained in detail in order to be able to understand the influences occurring during the ageing of the batteries. The ageing experiment itself is a comparison test between commercial Passive Balancing (PB) and the novel AB. Two identical battery packs are aged under uniform conditions, but with the two different BMSs mentioned above. At the end of the ageing process, the battery packs are disassembled and the parameters of all individual cells are determined for further investigation. The main contribution of this work is the proof of effects through AB, especially with large battery loads. Both the increase in discharge capacity and the service life are demonstrated. The work shows how parameter variation of individual cells can be made visible during operation. It also presents diagnosis and calculation methods. The energetic efficiency of the batteries cannot be increased, since the self-consumption of the power electronics of the AB system is always higher than with PB. However, the overall efficiency of the battery increases due to an increase in capacity and an extension of the service life. The thesis also shows that with lower battery loads, the use of AB is not beneficial any more or may lead to negative effects. In such applications conventional PB is sufficient. The results obtained during pack ageing are additionally substantiated and extended by the measurement results of the individual cells. At the end of the thesis, all results and contributions are summarised. Suggestions for optimisation as well as further research ideas are presented as a possible starting point for further scientific studies
Possible syndemics in Spain during the 20th century associated with autochthonous malaria
No full textÜber (un-)moralische Strukturen in der Praxis pädagogischer, pflegerischer und psychosozialer Berufe
No full text
Remote sensing methods for estimating tree species of forests in the Volyn region, Ukraine
Get PDFForest classification is needed to solve a wide range of environmental issues related to of forest classes and succession processes, the extent of afforestation and deforestation and global environmental change. These applications require a very accurate mapping and monitoring of forest types. This article investigates the combination of modern open geographic information systems and remote sensing data in forest management tasks for a specific part of the Ukrainian state area. Based on the existing afforestation plans, the results of the unsupervised classification of Sentinel-2 images and the selection of forest species fragments with closed crowns as training data for supervised classification, classifiers of forest species of the study object were developed with and without taking into account age groups. A supervised classification of research objects is realized and the accuracy of the obtained results is evaluated. It is established that the accuracy of determining forest species on the basis of the proposed method is 90.3 and 91.4%, taking into account age groups and without taking them into account, respectively. Thus, it is found that the modeling of the age groups does not improve the classification result for the test area
Auch über schlimme Themen muss man sprechen – eine leitfadengestützte Interviewstudie zum Gewalterleben von Menschen mit Sehbeeinträchtigungen
Get PDFMenschen mit Behinderungen sehen sich einem besonderen Gewaltrisiko ausgesetzt, welches sich in einem strukturell, gesellschaftlich, institutionellen und behinderungsbedingten Machtungleichgewicht begründet sieht (Römisch, 2017). Sowohl Kinder als auch Erwachsene mit Behinderungen sehen sich außerdem einem erhöhten Gewaltrisiko ausgehend von Betreuungs- und Pflegepersonal ausgesetzt. Besonders betroffen und vulnerabel sind Menschen, bei denen die Art oder Schwere der Beeinträchtigung mit einer Beschränkung der Fähigkeiten zum Selbstschutz einhergeht. (Marge, 2003) Als zentrale Ursache für Gewalt in Institutionen der Behindertenhilfe lassen sich die dort bestehenden Strukturen nennen, wobei sich besonders geschlossene Systeme begünstigend auf das Gewaltrisiko auswirken (Römisch, 2017). In der modernen Behindertenhilfe existieren hierbei immer noch viele Einrichtungen, die abgelegen von Gemeinden und Städten oder abgesondert in Stadtgebieten abseits des städtischen Alltagsgeschehens liegen und in denen Bewohnende rundum versorgt werden. Dies geht oftmals mit einem Mangel an Kontakten zu Personen außerhalb der Einrichtungen einher. (Mattke, 2018) In Einrichtungen für Menschen mit Behinderungen herrschen zudem Lebens- und Wohnverhältnisse, welche die eigene Privat- und Intimsphäre nur geringfügig schützen, was wiederum zu einer erhöhten Abhängigkeit vom Personal der Einrichtung führt. (BMFSFJ, 2014) Angesichts der bestehenden Vulnerabilität und Prävalenz von Gewalt im Leben von Menschen mit Behinderungen wird die Notwendigkeit des Einschreitens, Tätigwerdens und Gewaltschutzes durch die Soziale Arbeit deutlich. Eine zentrale Rolle bei der Entwicklung von Gewaltschutzkonzepten sollte dabei der Partizipation von Betroffenen zuteilwerden (Deutsches Institut für Menschenrechte, 2022). Ziel der vorliegenden Bachelorarbeit war es deshalb, im Rahmen einer qualitativen und leitfadengestützten Interviewstudie das individuelle Gewalterleben von drei Menschen mit Sehbehinderungen und deren Erfahrungen mit Gewalt sowie den Umgang damit zu rekonstruieren und zu erschließen. Zusätzlich lag der Forschungsarbeit die Frage zugrunde, ob mithilfe eines qualitativen Vorgehens Erkenntnisse gewonnen werden können, die sich auf die Ausgestaltung eines einrichtungsspezifischen Schutzkonzeptes für Menschen mit Sehbeeinträchtigungen übertragen lassen. Die durchgeführten qualitativen Interviews mit Betroffenen verdeutlichten nicht nur die starke Abhängigkeit der Befragten vom Personal der Einrichtung und das damit verbundene strukturelle Gewaltpotenzial, sondern offenbarten auch alltäglich erlebte Gewalt, wie Anfeindungen, körperliche Auseinandersetzungen und plötzlich auftretender Lärm. Es ist daher, trotz der kleine Stichprobe von drei Personen, anzunehmen, dass das in diesem Bericht beschriebene Vorgehen, auch aufgrund seiner individuellen Anpassungsfähigkeit, als Methode der Informationsgewinnung für die partizipative, einrichtungsspezifische Gestaltung eines Gewaltschutzkonzeptes dienlich sein kann
Responding to negative social identity: A taxonomy of identity management strategies
No full textTaken from literature on social identity theory and social comparison theory, 12 strategies of identity management were identified as possible responses to negative social identity. A taxonomy with two orthogonal axes is proposed as theoretical organization of these diverse strategies. While the first axis considers responses as being either individual or collective, the second axis refers to the distinction between behaviours and cognitions. It is assumed that the German unification process implied a lower status position of East Germans relative to West Germans on relevant comparison dimensions, and that East Germans have to deal with this threat to their identity. Hence, data of an East German sample are used to empirically systematize identity management strategies, and, thus, to test the proposed taxonomy. Results support the expected four-factor solution only for those strategies taken from social identity theory, while the responses derived from social comparison research build a fifth factor. In addition, the empirical assignments of strategies to cells of the taxonomy are only partly in line with the expected pattern. The empirical findings suggest some clarification and modifications of the proposed response taxonomy. The most important refers to a re-interpretation of the taxonomy's first axis, which now differentiates between responses according to the specific changes of the comparison parameters they imply
The group-serving bias in evaluating and explaining harmful behavior
No full textGroup-serving biases in evaluating and explaining harmful behavior were investigated. Members of the Italian Communist party judged and explained an in-group or an out-group actor's harmful behavior toward an in-group or an out-group victim. The results support the notion of an in-group bias: Out-group actors were perceived as more aggressive and intentional in their actions than in-group actors. An in-group bias was also observed with regard to predictions about whether the victim would attempt retaliation. Group-based explanations were used more often when the group identities of actor and victim were different than when they were the same