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Dissertation
Raumwinkeloptimierte Elektron-Photon Koinzidenzmessungen nach der Anregung mit Synchrotronstrahlung unter Verwendung zeitlich verschieden strukturierter Füllmuster des Speicherrings
(2021-05)
Für die Untersuchung von Relaxationspfaden von angeregten mikroskopischen Systemen nehmen Messmethoden eine zentrale Rolle ein, bei denen emittierte Teilchen so gemessen werden, dass eine physikalische Korrelation zwischen Ihnen nachgewiesen werden kann. Denn nur durch den Nachweis dieser Korrelationen ist es bei stark verzweigten und sich unter Umständen kreuzenden Relaxationspfaden, diese Pfade eindeutig nachzuverfolgen.
Diese sogenannten Koinzidenzmessungen werden seit ihren ersten Anwendungen in den 1920er Jahren ...
Aufsatz
Factors influencing technology adoption among smallholder farmers: a systematic review in Africa
(2022-01-25)
Smallholder agriculture has been identified to be critical in the creation of employment, improving food security and improving the economy. However, smallholder agriculture in Africa is characterised by a low production level which has been linked to the limited use of technologies. Several factors influence the adoption of technologies among smallholder farmers in Africa. This systematic literature review focuses on the factors influencing technology adoption among smallholder farmers in Africa and identified 128 ...
Video
ESTÉTICA DEL PAISAJE Y ARQUITECTURA
(2021-07-24)
El paisaje y la arquitectura y la geografía peruana como un recorrido en la búsqueda de una experiencia personal alrededor de la obra fotográfica de Billy Hare.
Billy Hare
Discípulo de Minor White y Aaron Siskind, asiste al Master del Rhode Island School of Design RISD como becario Fulbright. En 1992 es distinguido con la John Simon Guggenheim Fellowship.
Miembro fundador de la Asociación Secuencia y de Secuencia Fotogalería. Participa en la fundación del Departamento de Fotografía del Instituto Gaudí, Centro ...
Dissertation
Consistent Hierarchical Control in Cooperative Autonomous Driving
(2022)
This thesis is set within the context of the problem of motion planning in autonomous driving. Due to nonlinear system dynamics and non-convex constraints, this problem is challenging even under simplifying assumptions (e.g. non-cooperating traffic participants obey traffic rules, lossless inter-vehicle communication, absence of measuring errors). Typical solution approaches rely on a decomposition of the problem into subproblems which are easier to solve. This decomposition often results in a hierarchy of subproblems ...
Dissertation
Movement Recognition and Direction Detection of Pedestrians
(2021)
In this dissertation we developed a method that uses smartphone sensors to recognise the pedestrian movement (using the accelerometer) and direction (using the compass) accurately. The proposed approach works independent of the GPS and also improved the recognition time of pedestrians movement and direction in comparison to using the GPS.Currently, smartphones are the most common devices people carry with them along with the tablets and smartwatches. Most smartphones are equipped with different types of sensors, ...
Aufsatz
Profiling Tunisian olive oil Consumers based on the Environmental Sustainability value perception
(2022-04-15)
Most of the research works about consumer behavior toward olive oil are based on quality attributes and indicators. Consumption values have not been explored, especially for olive oil consumption. Thus, the present work proposes an analysis of the Tunisian consumer’s behavior towards olive oil, based on consumption values, especially environmental sustainability value since olive oil is typically a green and sustainable product. Drawing on the findings of a survey of a Tunisian household’s sample, an exploratory ...
Aufsatz
Wie mit Populisten umgehen? Demokratie- und planungstheoretische Perspektiven für Planungspraxis und Planungsforschung
(2021-06-07)
Das Erstarken populistischer Kräfte stellt die räumliche Planung vor neue Herausforderungen, weil daraus sowohl inhaltliche als auch verfahrensbezogene Konflikte entstehen können. Ziel des Beitrags ist es, drei demokratie- und planungstheoretisch begründete Perspektiven auf Populismus und Planung zu entwickeln und Schlussfolgerungen für Planungspraxis und Planungsforschung zu ziehen. Dabei handelt es sich um elitenorientierte, rational technokratische Theorien, um deliberative, beteiligungsorientierte Theorien sowie ...
Aufsatz
Responsibility and prosocial behavior - Experimental evidence on charitable donations by individuals and group representatives
(2020-11-13)
In this paper we present a lab-in-the-field experiment with a large and diverse sample to compare charitable donations when individuals decide for themselves only and when they decide as a group representative. In contrast to the previous literature, we find that individuals make greater charitable contributions when they decide as a group representative than when they decide alone. This result demonstrates that being responsible for a group does not always lead to more selfish behavior.
Zeitschrift
Vol. 10 No. 2 (2022)
(Specialized Partnerships in Sustainable Food Systems and Food Sovereignty, Faculty of Organic Agricultural Sciences, the University of Kassel, Germany and the Federation of German Scientists (VDW), 2022-05-30)
Konferenzveröffentlichung
The Effect of Injection Molding Parameters on Microcellular Foam Morphology
(2021)
Microcellular foam injection molding with physical blowing agent (MuCell®) delivers monetary benefits, processing advantages and freedom of product design by reducing shrinkage. In conjunction with an advanced mold technology, so-called Pull and Foam method, there is great potential in controlling the foam structure of the component locally. In this study, Polycarbonate (PC) components were produced with nearly compact outer skin and a closed cellular core. To understand the relation between processing parameters and ...