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Entwurf und Implementierung einer kamerabasierten Anwendung für ein Mühlespiel für den Panda-Roboter
(2023)
Injury to the anterior and posterior cruciate ligaments is not an uncommon occurrence. A rapid movement can already cause such an injury. Reconstruction of the anterior and posterior cruciate ligaments (ACL/PCL) in the knee joint is a complex orthopedic challenge. In this context, the development of a graft preparation system is gaining importance. Such a system will help surgeons prepare grafts accurately and efficiently to optimize reconstruction processes. This can increase the accuracy of graft placement, reduce surgical times, and decrease recovery time and postoperative risk for patients.
This paper focuses on the development of a graft preparation system for ACL/PCL reconstruction in collaboration with Getsch+Hiller Medizintechnik. The challenges and requirements in developing such a system were analyzed to ensure functionality and effectiveness. Existing approaches and technologies were examined to identify potential improvements and innovations. Development included extensive research on ACL/PCL reconstruction using grafts, including various surgical techniques. A detailed analysis of the graft preparation process was performed to identify critical issues. The design of the graft preparation system is based on research data and is performed using CAD. The needs of the target group, customer requirements and findings from research were considered.
For thin zinc sheets for construction purposes different welding techniques like tungsten inert gas (TIG), plasma arc (PAW) or micro-friction stir (μFSW) welding can be used. However, low ultimate tensile strength (UTS) often leads
to cracking in the weld even at low loads. The characteristics of laser welding make it particularly suitable for joining thin sheets and low-melting materials. Nevertheless, little is known about the weldability of thin zinc sheets by laser welding and the effects of the basic process parameters of laser power and travel speed on the welding process and the UTS of the weld. In this study,
thin zinc sheets were welded at different laser powers and travel speeds. Tensile testing of the welded joint showed, that the UTS and elongation at break increase with the energy input per unit length, but the welding process became gradually unstable and the susceptibility for welding defects increased. This leaves only a few laser powers and travel speeds that produce good welds with respect to UTS and elongation at break. Under these conditions laser welding is an alternative processing technique to
TIG, PAW and μFSW, but needs further investigation to
improve its stability. To implement laser welding in highly
automated production processes further research is required on laser welding of rolled zinc alloys.
Diese wissenschaftliche Publikation befasst sich mit dem Aufbau und der Funktionsweise der alternativen
Antriebstechnologie Wasserstoffverbrennungsmotor. Es wird das
Potential dieses Motors hinsichtlich der Klimaziele als Antrieb für PKW und schwere Nutzfahrzeuge untersucht. Dazu wird dieser bezüglich des Wirkungsgrads und der CO2-Bilanz mit den herkömmlichen Antrieben Otto- und Dieselmotor sowie den
weiteren alternativen Antrieben Batterie und Brennstoffzelle
verglichen.
This study explores the complex dynamics influencing the establishment of secondary
vocational exchange programs, with an emphasis on identifying the barriers and
facilitators in this process. Adopting a qualitative research approach, the study seeks to
capture the rich, nuanced experiences of stakeholders and provide context-specific
insights. Semi-structured interviews were conducted with professionals, administrators,
and officials associated with German and United States Vocational Education. Employing
a two-tiered participant selection strategy, a range of perspectives were captured. The
data were analyzed using an inductive approach to thematic analysis, aiming to identify
underlying patterns and themes. Preliminary findings indicate that funding, policy and
governance challenges, educational structures, administrative elements, corporate
attitudes, and socio-cultural influences play significant roles in the establishment of these
exchange programs. The research also underscores the importance of participant
preparedness, program structure, stakeholder interest and engagement, diversity and
inclusion, and innovative program approaches as vital facilitators. These insights can
influence the development of policies and practices for future secondary vocational
exchange programs, thus contributing meaningfully to the larger conversation
surrounding vocational exchange programs and international educational partnerships.
The impact of store atmosphere elements on the purchase behaviour and emotions of customers has an important significance in modern marketing. How to design and conceptualize a store atmosphere in such a way that it provides an unforgettable experience for the customer and entices him or her to arouse an interest in the store environment is one of the most fundamental concerns merchants and marketers must ask and think through these days – likewise, the role of culture in connection with store atmosphere is necessary to understand. The goal of this paper is to answer the question on how behavioural and emotional responses to store atmospheric elements such as visual, aural, olfactory, tactile, social, exterior design, interior design and layout & design differ across individualist and collectivist cultures. A cross-cultural analysis between Germans and non-Germans is made in respect to the posed question. A quantitative online survey was conducted, in which a total of 99 valid participants took part, of which 57 were Germans and 42 were non-Germans. This research extended the study of Barros et al. (2019) and added two more separate store atmospheric elements which are the general exterior design and the general interior design. The data was then analyzed, and the findings were ultimately presented. The findings showed that overall store atmosphere elements have similar emotional and behavioural effects on individualist and collectivist cultures with the exception of the general exterior design element, where a significant difference was found. This paper gives a comprehensive overview on the importance of store atmospheric elements in retail and the comparison between Germany which acts as a country that scored relatively high on the Individualism dimension of Hofstede’s national culture model and the countries Turkey, Russia, Portugal, Albania, Bosnia, Romania, Kazakhstan, Vietnam, Sri Lanka and Iraq which serve as a union of cultures that performed high on the Collectivism dimension. Additional research on the topic needs to be done on how culture affects shopper’s emotional and behavioural responses.