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A deep learning spatial-temporal framework for detecting surgical tools in laparoscopic videos
(2021)
Can the different framing of price promotions decrease consumer value perception and their willingness to pay? Prior research provides evidence of differences in consumer perception of economically equivalent monetary and non-monetary price promotions. In detail, many research works suggest that non-monetary promotions positively affect consumer perception and are therefore preferred over monetary ones that are associated with a drop in quality. Results suggest that this biased consumer behavior is caused by the framing of the promotion, causing difference in cognitive processing and dissimilarities in perception of benefits and product quality. We put this theoretical foundation to the test on the Turkish consumer market of non-durable goods, in order to contrast effects on consumers of the economically equivalent formats ‘50% discount’ as a monetary and ‘buy-one-get-one-free’ as a non-monetary promotion. In particular, the focus was set on analyzing attractiveness perception of the two promotion types and the development of WTP pre- and post-promotion. To achieve this, the non-durable goods rice and antibacterial soap were selected as product stimuli to stage scenarios before, during and after a promotion period. Four sets of questionnaires were shared on social media and distributed to a total of 919 participants via randomization generator. The survey results put forward empirical validation of product-related decrease in value perception as a consequence of both promotion types, namely the ‘promotional effect’. Nevertheless, our data provide no evidence for the ‘framing effect’ in neither attractiveness perception nor post-promotional WTP. This paper aims to bridge the gap on empirical research of key theoretical implications of promotional impact on consumer behavior and to benefit domestic and foreign marketing managers conducting business operations on the Turkish market.
On Consistency Viability and Admissibility in Constrained Ensemble and Hierarchical Control Systems
(2023)
Several control architectures, such as decentralized, distributed, and hierarchical control, have been elaborated over the past decades for controlling systems composed of a set of subsystems. However, computational complexity and constraint satisfaction are still challenging tasks. We present an approach to control an ensemble of similar heterogeneous systems with input and state constraints via an identical control input. This control input is globally admissible and computed based on an aggregated system that reflects the overall behavior of the ensemble. To limit the computational complexity of the control task, the aggregated system is designed such that its dimension is independent of the number of subsystems. To guarantee viability, i.e., state constraint satisfaction for all times, appropriate consistency conditions are derived based on invariant set theory. The presented approach is illustrated with a numerical example.
This paper analyses five different Cryptocurrencies, namely Bitcoin, Ethereum, XRP, Dogecoin and Litecoin, and studies their impact on traditional financial portfolios under different allocation strategies. The allocation strategies under consideration in this paper are the modern portfolio theory according to Markowitz, an extension of it such as the tangency portfolio, and the equally weighted portfolio. Further, this study explores the effect on the efficient frontier when Cryptocurrencies are added to the efficient portfolios. In addition to that, the paper aims to examine whether the mean – variance portfolio optimization according to Markowitz outperforms the naïve and tangency portfolio strategy. The portfolio performance is evaluated based on the Sharpe ratio. The quantitative analysis of this paper covers the time period from 2017 to 2022, in total five years. In accordance with the existing literature on portfolio optimization with Cryptocurrencies, the study reveals that besides some issues related with Cryptocurrencies such as cybercrime and a lack of regulations, Cryptocurrencies can be beneficial for portfolio diversification with traditional financial assets. Referring to the portfolio strategies, the study highlights that the optimal mean – variance portfolio and tangency portfolio do not differ significantly in terms of Sharpe ratio. However, both strategies outperform equally weighted portfolios.
Effiziente Erosion von superabrasiven Werkzeugen : Schwerpunkt auf Schleif- und Abrichtwerkzeugen
(2024)
Optimizing the grinding process through reduction of the loading of grinding tool by infiltration
(2015)
Vollautomatisiert umformen
(2015)
High voltage insulation properties of DLC-Parylene multilayer films for microsurgery instruments
(2016)
Design and fabrication of a novel 4D-printed customized hand orthosis to treat cerebral palsy
(2024)
Mit dem Fitnessboom in Deutschland profitiert auch die Nahrungsergänzungsmittelindustrie. Auf Social-Media-Kanälen wie Instagram wird immer sichtbarer wie Influencer der Fitnessbranche mit Produktplatzierungen für Nahrungsergänzungsmittel werben. Diese Arbeit untersucht das neue Marketingphänomen des Influencer Marketings bezogen auf die Nahrungsergänzungsmittelindustrie der Fitnessbranche in Deutschland. Für die Untersuchung wurde eine persönliche Befragung von Fitnessstudiobesuchern durchgeführt. Die Ergebnisse der Studie zeigen, dass das Influencer Marketing eine Rolle für den Erfolg von Herstellern der Nahrungsergänzungsmittelindustrie haben kann und diese neue Marketingdisziplin voller Potenzial steckt.
The topic of traditional fashion retailers fighting for their position against growing e-commerce suppliers has been omnipresent in recent years. Therefore, it is important to understand what possibilities modern technology and innovation has to offer, and how these innovative technologies can be leveraged to achieve traditional brick-and-mortar-retailer’s goal of staying relevant and competitive.
The objective of this thesis is to examine and compare the effectiveness of different in-store digitalization concepts and technologies in retail organisations, analyzing different challenges such as the practical implementation in stores, customer adoption and acceptance factors in context of socio-demographic, and measuring the success of the concepts. Also, the current situation will be explored to see what is already being done today and where there is more potential using different approaches and technologies. For this purpose, a variety of studies, papers and other literature will be analyzed and put into context with the research topic.
Concluding the thesis, we find that all technologies and its practical applications affect relevant variables in different models such as TAM, the convenience/social presence model, and the customer decision-making process. Besides that, the socio-demographic variables geography, age and gender all influence adoption and readiness towards technology to a certain extent. Finally, we give examples on how the technologies can influence classic fashion retail KPIs.
Commissioning rules for optimal velocity controller damping of servo axes using elimination methods
(2015)
Real‐Time NMR Studies of Oxyamine Ligations of Reducing Carbohydrates under Equilibrium Conditions
(2016)
Quality Management has attained top priority in many sectors, notably in the airspace industry. A thereby integrated mechanism to ensure the containment and correction of production errors should include a consistent and effective tracking system to maximise business process efficiency on the internal as well as overall company level.
The A350 Doors Program of Airbus Helicopters Deutschland GmbH has identified the need for an improvement project to augment the quality of the associated summary report in terms of time, money and scope. This research aims to document as well as evaluate the effectiveness of this optimisation through the measurement of key indicators.
Through the application of various project and business process management tools this research measures the consumption of financial and time resources as well as the change in the quality of the reported outcome. Thereby it found that the optimisation achieved a radical reduction in scope of the document, thus limiting the amount of time and financial resources consumed. Similarly, previous tracking errors were corrected and the procedure altered, increasing the decision-making quality of the content. These results and their attainment process are to be considered for future company internal optimisation projects.
This research paper aims to provide an overview of companies listed in the German DAX, MDAX and SDAX indices that have been involved in prosecution procedures directly contradicting their Corporate Social Responsibility strategies and how they present themselves as a Corporate Citizen. The terms Corporate Citizenship and Corporate Social Responsibility will be further defined and the reasons companies implement them elaborated. The results will be structured according to the stock index they belong to and whether they had any active prosecution procedures by government organizations against them during the last ten years that would go against their Corporate Citizenship strategy. The end result will be judged in terms of how a company can propagate certain values while being investigated for actions that directly contradict them and whether it could be considered hypocritical for companies to be involved in them while claiming to be a “good” Corporate Citizen.
Im Rahmen dieser Bachelorarbeit wird untersucht, ob kulturelle Faktoren einen Einfluss auf das Verhältnis zwischen in Deutschland lebenden türkischstämmigen Anwälten und Mandanten haben. Hierzu wird die ethnische Identität von Deutsch-Türken im Zusammenhang mit Generationsunterschieden untersucht. Zudem werden Akkulturationsmodelle, Kommunikationstheorien sowie Ziele und Möglichkeiten des ethnischen Marketings definiert.
Durch Anwendung qualitativer und quantitativer Forschungsmethoden werden jeweils aus Anwalts- und Mandantensicht die ethnische Identität sowie die für die Präferenz eines türkischstämmigen Anwalts relevanten Faktoren einzelner Einwanderergenerationen ermittelt.
Die Ergebnisse zeigen, dass die Anwalts-Mandanten-Beziehung stark von kulturellen Aspekten beeinflusst wird und dass Änderungen im anwaltlichen Ethno-Marketing notwendig sind, da diese nicht von türkischstämmigen Mandanten wahrgenommen werden.
The thesis introduces a case study research presenting the transfer pricing problem of a selected MNE. Hereby, the researcher derives an appropriate method for the case and concludes with a comparison of theory and practice. The theoretical part of the thesis evaluates existing transfer pricing methods as explained by the OECD, Germany and the USA. The second part is about the choice of the research methodology, case study research and expert interview.
The third part first introduces the case study, analyzes a theoretical framework of the transfer pricing process and evaluates the existing transfer pricing methods, which allows for the derivation of the most appropriate transfer pricing method for the case. The fourth part concludes the research by applying the derived transfer pricing method, the Cost Plus Method, to the particular case study. By combining theoretical and practical approaches, a solution to the problem is determined.
Important prior studies regarding customers purchasing behaviour proved that customers tend to avoid products showing extreme deflections in attributes and feel more comfortable purchasing articles with a balance in attributes (compromise option). Hence, for marketers, supermarket chains etc., it can be of an advantage knowing whether this effect can also be measured or even be amplified in where the spatial middle of a shelf is occupied with the compromise option. We hypothesized that the tendency towards the compromise option, eventually even higher in the spatial middle position, can also be observed in an in-store experiment with real-life circumstances. In order to fulfil our study, we worked with a hardware store in southern Germany. In total, we sold 610 items consisting of 5 different products with each 3 alternatives. The result corroborated our hypothesis partly as it showed in some cases, the compromise option was indeed preferred when in the middle of a choice set. Nevertheless, in many cases, products on extreme position with “extreme” attributes were preferred. Leading to the conclusion that other factors like the brand may have higher importance in purchasing decisions.
The e-Commerce market is continuously gaining importance, leading to a fast market development and to equally rapid transition in business models. This thesis analyses the impact of the e-Commerce sector on stationary trade, based on a case study of an internationally established retailer with focus on the Swiss market. The paper builds up on the explanation of the term e-Commerce and the e-Commerce sector, then evaluates the effects of e-Commerce on stationary trade. Based on this information, a case study will be analysed using specific key performance indicators. The aim is to clarify whether the e-Commerce sector is a threat for stationary trade and to elaborate recommendations for retailers. Therefore, innovative concepts of retail stores are mentioned and applied to the case study, in order to give concrete recommendations for further development of multi channel strategies. It can be concluded that although e-Commerce is a growing business model, stationary trade is indispensable. Both sectors should be understood as complementary concepts. Consequently, strategies for implementing multi-channel schemes should be implemented in order to stay competitive and satisfy customer needs.
Rising globalization and digitization resulted in crises for the fashion industry. High competition and the interconnectedness of the consumers rule the market and put it under pressure. Owing to the growing power consumers possess, the requirements towards the fashion players are increasing. Customer experience is frequently discussed these days by academics as well as practitioners and emphasized as a competitive advantage. Yet, it is difficult to measure and to track its consequences.
Since customer experience is elusive and no industry specific measurement scale is defined, at first this work aims to identify relevant touch points of customer experience in the fashion industry by dint of a focused interview. The further objective of this paper is to enhance the comprehension of the touch points’ effects or rather the relationship of customer experience with brand loyalty. This is approached by a questionnaire based on the preceding qualitative analysis and the resulting model. This model defines the customer experience touch points as the independent variables while brand loyalty is examined as the dependent variable. The conducted linear regression analysis reveals a moderate effect of customer experience on brand loyalty and the touch points concerning the products as most relevant in this relationship. Additionally, the digitization aspect is addressed by the examination of the relationship in the offline and online channels separately. With respect to this, the present study recognizes that the extent of the customer experience’s impact on brand loyalty and the significant touch points vary across channels to a certain degree.
Greenwashing in the clothing industry and its impact on the corporate image of consumers in Germany
(2023)
With issues like climate change and the pollution of our planet, more and more clothing companies are following the trend of a sustainable marketing strategy. Greenwashing is often associated with that, as not all companies are honest about their statements. This study examines how greenwashing by a company in the clothing industry impacts the corporate image of 18 to 30-year-old adults in Germany. Studies regarding sustainability, consumer behaviour towards sustainable products, the behaviour in case of greenwashing incidents, and the identification of greenwashing are investigated. For the analysis, online survey data of 244 Hochschule Furtwangen University study participants are examined. The descriptive study provides information about the behaviour of consumers regarding sustainable clothing and their behaviour when it comes to greenwashing. It was found that consumers tend not to consider sustainability when buying clothes. Very few inform themselves about sustainability, and sustainable labels do not seem to influence their shopping decisions. The image of the consumer about the company involved in greenwashing appears to deteriorate. In addition, the willingness to keep buying from the company seems to be stopped or reduced for the majority. A weak positive correlation was found between consumer behaviour concerning the topics of sustainability and greenwashing. It can be summarised that the dishonest behaviour of clothing companies can harm their consumers' corporate image and brand loyalty.
Effects of Different Models and Different Respiratory Manoeuvres in Respiratory Mechanics Estimation
(2016)
Cost accounting is one of the main sources of information for the management in the company. A correctly designed cost accounting system may address the most important issues in order to support effective and successful decision-making, which among others include price building, efficiency measurement and profit evaluation. In order to enable the full functioning of the system the company should ensure that the system is designed according to the company’s size, operations and processes, as well as information needs. For Testo Sensor GmbH the optimization of cost accounting system became essential, as the information it provides at the moment is not sufficient and reliable for decision-making. Obviously, the reason for this is that the system was not correctly and thoroughly designed at the times of the company foundation. Therefore, the goal of current paper is to develop and adjust the cost accounting system to the company’s operations in order to fulfill the information needs. In order to reach this goal the following objectives were defined: to analyze the current state of cost accounting system of Testo Sensor to reveal its weaknesses and incompatibilities to address these incompatibilities by developing the improvements and possible optimization potentials In order to fulfill these objectives, the review of the German and English literature on the current topic was made in order to identify possible approaches and methods and provide a theoretical background for solutions of the existent problem. In addition to this, a number of interviews was held with the employees of Testo Sensor, as well as the parent company. Finally, the exact data for 2011 – 2015 for cost analysis was taken from the company’s database systems and other documentation. The result of the current paper represents a number of the optimization potentials, which relate to all elements of the cost accounting system. In addition to this, a proposal for implementation of cost center planning and control, which currently is not implemented in the company, was designed. The optimization proposals were developed with the consideration of the theoretical methods applied in German companies, as well as the company’s particular needs and possibilities.
Smart meter systems measurements for the verification of the detection & classification algorithms
(2013)
Agri-Photovoltaics is a novel renewable energy technology. Amid rising climate change concerns, integrated photovoltaic systems are gaining in importance. Problems such as the increasing scarcity of land and the sealing of fertile soils are becoming more and more serious. Land consumption is often at the expense of agriculture. Farmers are struggling to cope with the ever more difficult conditions due to the effects of climate change. Therefore, the world must increasingly deal with dual use of land. However, especially in Germany the technology of agri-photovoltaics is not yet very advanced. The objective of this thesis is to identify the potential of this technology for the energy transition in Germany. Furthermore, the economic potential for regional farmers in Germany will be elaborated based on an investment appraisal of a vertical agri-photovoltaic system. The application possibilities of agri-photovoltaics are versatile. The work shows that already today farmers in Germany can diversify their income by investing in an agri-photovoltaic system. The costs are higher than for ordinary ground mounted systems, however the land can still be used for agricultural purposes. The investment calculation is carried out in different scenarios. Particularly, the remuneration per kWh as well as the discount factor are decisive for a positive net present value project. The results of this work show that the potential of agri photovoltaics is high for both the energy transition in Germany and the economic benefits for regional farmers. For an increasing expansion of the technology, more precise legislation and appropriate subsidies for agri-photovoltaics are needed.
Currently, the technology is insufficiently covered in German legislation, which needs to be addressed.