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This study investigates for the first time how public charging infrastructure usage differs under the presence of diverse pricing models. About 3 million charging events from different European countries were classified according to five different pricing models (cost-free, flat-rate, time-based, energy-based, and mixed) and evaluated using various performance indicators such as connection duration; transferred energy volumes; average power; achievable revenue; and the share of charging and idle time for AC, DC, and HPC charging infrastructure. The study results show that the performance indicators differed for the classified pricing models. In addition to the quantitative comparison of the performance indicators, a Kruskal–Wallis one-way analysis of variance and a pairwise comparison using the Mann–Whitney-U test were used to show that the data distributions of the defined pricing models were statistically significantly different. The results are discussed from various perspectives on the efficient design of public charging infrastructure. The results show that time-based pricing models can improve the availability of public charging infrastructure, as the connection duration per charging event can be roughly halved compared to other pricing models. Flat-rate pricing models and AC charging infrastructure can support the temporal shift of charging events, such as shifting demand peaks, as charging events usually have several hours of idle time per charging process. By quantifying various performance indicators for different charging technologies and pricing models, the study is relevant for stakeholders involved in the development and operation of public charging infrastructure.
In any dimension d≥2, there is no known example of a low-discrepancy sequence which possesses Poisssonian pair correlations. This is in some sense rather surprising, because low-discrepancy sequences always have β-Poissonian pair correlations for all 0<β<1/d and are therefore arbitrarily close to having Poissonian pair correlations (which corresponds to the case β=1/d). In this paper, we further elaborate on the closeness of the two notions. We show that d-dimensional Kronecker sequences for badly approximable vectors α→ with an arbitrary small uniformly distributed stochastic error term generically have β=1/d-Poissonian pair correlations.
Das Force Concept Inventory ist ein international etabliertes Diagnoseinstrument für das Konzeptverständnis der Newtonschen Mechanik. Wir haben über einen Zeitraum von zehn Jahren von knapp 5000 Studierenden der Ingenieurwissenschaften an der TH Rosenheim zu Studienbeginn Testdaten erhoben. Die Auswertung mittels Item Response Curves erlaubt für jede Frage die Analyse sowohl der richtigen als auch aller falschen Antwortoptionen. Insbesondere lassen sich auf diese Weise Distraktoren identifizieren, die gängige Fehlvorstellungen widerspiegeln. Es zeigt sich, dass die am häufigsten gewählten Distraktoren auf der Annahme beruhen, jeder Bewegung müsse eine Kraft in Bewegungsrichtung zu Grunde liegen. Daten von Universitäten der USA zeigen ein vergleichbares Ergebnis. Die vorgestellte Analyse dient als Grundlage zur Verbesserung von Lehrsequenzen.
Organizational mining, a sub-discipline of process mining, introduced social networks based on business processes. However, process mining has only half-heartedly pursued this line of development. In particular, the well-founded results of interdisciplinary social network analysis have hardly been taken up.
This article shows how the explanation and design of the phenomenon "organization" can benefit from the further development of this network view of business processes. To this end, the basic idea of social process networks is presented and the current state of research is outlined. Furthermore, social networks are presented as a new component of organization design. An interesting, far-reaching new field of research is expected.
This paper presents three novel findings that could be the starting point for further research, but can also be used in practice today.
Ideenwerkstatt: KI in der Hochschullehre - Persona-Konzept mit bildgebender KI in der Vorlesung
(2024)
Beitrag zur Ideenwerkstatt Hochschullehre der Virtuellen Hochschule Bayern (VHB) zum Themenkomplex "KI in der Hochschullehre". Gegenstan des Beitrages ist die Verwendung bildgebender KI im unmittelbaren Unterrichtsgeschehen in dem ein Persona-Konzept (Design-Thinking) durch ein KI-generiertes Porträt persönlicher und wirksamer wird. Die Veranstaltung fand am 29.02.2024 online im Rahmen des bundesweiten Projekts "Konzertierte Weiterbildungen zu künstlicher Intelligenz in der Hochschullehre" des Netzwerks Landeseinrichtungen für digitale Hochschullehre (NeL) statt und wurde von der Stiftung Innovation in der Hochschullehre gefördert. Das Video kann auch auf Youtube abgerufen werden: https://youtu.be/JCaUWryiEjs
Kinder brauchen Bindung
(2024)
Eine stabile, sichere Bindung zwischen Kindern und ihren Bezugspersonen, seien es Mutter, Vater, Großeltern oder pädagogische Fachkräfte, ist grundlegend für ihre Entwicklung. Welche Faktoren für eine sichere Bindungsbeziehung ausschlaggebend sind und wie Bezugspersonen die Grundbedürfnisse nach Beziehung, Bindung und Kontrolle in den ersten Lebensjahren erfüllen können, zeigt das Buch: Wie gehe ich feinfühlig mit meinem Kind um, das noch nicht sprechen kann? Kann sich der Vater genauso gut um einen Säugling kümmern wie die Mutter? Schadet eine Betreuung in der Krippe? Der Band bietet Grundlagenwissen aus der internationalen Entwicklungsforschung sowie Beispiele und Reflexionsimpulse für die Umsetzung im Erziehungsalltag. Abgeschlossen wird er mit einer Übersicht zu bindungstheoretischen Präventionsprogrammen in Familienbildung und Frühen Hilfen.
The variation of the contact impedance of adhesive conductive EMI shielding tapes under high temperature storage (HTS) of 110degC is investigated. The adhesive tapes under test are implemented as signal return paths in microstrip lines. Changes in the ground plane impedance by adhesive deterioration are analyzed by S-parameter measurements from 1MHz to 3GHz. A circuit model for contact impedance degradation is proposed and applied in simulation of board level shielding. Contact resistance and contact capacitance are found to increase significantly after 2400h, causing a declined magnetic field shielding effectiveness by 30 dB below 500 MHz.
Previous work has indicated that testing can enhance memory for subsequently studied new information by reducing proactive interference from previously studied information. Here, we examined this forward testing effect in children’s spatial memory. Kindergartners (5–6 years) and younger (7–8 years) and older (9–10 years) elementary school children studied four successively presented 3 x 3 arrays, each composed of the same 9 objects. The children were asked to memorize the locations of the objects that differed across the four arrays. Following presentation of each of the first three arrays, memory for the object locations of the respective array was tested (testing condition) or the array was re-presented for additional study (restudy condition). Results
revealed that testing Arrays 1 to 3 enhanced children’s object location memory for Array 4 relative to restudying. Moreover, children in the testing condition were less likely to confuse Array 4 locations with previous locations, suggesting that testing reduces the buildup of proactive interference. Both effects were found regardless of age. Thus, the current findings indicate that testing is an effective means to resolve proactive interference and, in this way, to enhance children’s learning and remembering of spatial information even before the time of school entry.