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Variability of spiking responses varies with perceptual visibility in V4, but not in pulvinar
(2015)
Validation of Continuously Learning AI/ML Systems in Medical Devices – A Scenario-based Analysis
(2020)
Changes are constantly accelerating. A major issue that companies are dealing with is how to communicate those changes in a way that is efficient and effective and therefore successful. Traditional models such as the ones by Lewin, Bridges or Kotter are reaching their limits due to the orientation on fixed vision, goals and processes. The time has come to change the way change is managed. New organizational structures are therefore required. An example of a new model to deal with the speed of change is agile management. Agility provides a platform for better communication, including the quantity and quality aspect. IMS Gear, an automotive supplier located in South Germany, is currently in the stage of a transition. Agile mindsets are anchored in their vision and strategy, yet the implementation of agile frameworks is still improvable. The PEP project is a first step into the direction of ensuring the future of the company despite all external and internal changes. Therefore, based on a model by Audi AG consultant Gergs, improvement approaches are developed.
Use of hydroxycinnamic acids and derivatives thereof and/or plant extracts for treating body odor
(2009)
Diese Bachelor-Thesis beinhaltet die Erarbeitung und Untersuchung zur technologischen Modernisierung einer 15 Jahre alten Hydraulikpresse mit integriertem Schweißsystem. Die Presse dient der Herstellung und Instandsetzung von supraleitenden Magneten für den Large Hadron Collider am CERN. Die technische Herausforderung bezieht sich wesentlich auf die Erneuerung des Regelungs- und Hydrauliksystems. Die zugrundeliegende Ursache liegt nicht nur in der zukünftigen Generation supraleitender Magneten, sondern auch in der Modernisierung des Schweißprozesses. Nach intensiver Einarbeitung in den Aufbau und Funktion der Presse werden Modernisierungsmöglichkeiten erarbeitet und diskutiert. Die Ergebnisse der Analyse dienen vorwiegend der technischen Ausschreibung zur Angebotseinholung. Die Untersuchungen haben gezeigt, dass für eine robuste Regelung der Hydraulik und Schweißtechnik ein separierter Ansatz zur Regelung erforderlich ist. Die Einbindung individueller, regelungstechnischer Lösungen vermeidet Schnittstellen und verbessert die Abbildung des Gesamtprozesses im Regelungssystem. Die Studie der derzeit eingesetzten Benutzeroberfläche zur Regelung wird als Basis für eine mögliche Verbesserung vorgestellt. Schwachstellen werden diskutiert und erarbeitete Verbesserungen erläutert. Die Bedienoberfläche der Hydraulikregelung wird infolgedessen neu entworfen und Lösungen zur Anpassung an verschiedene Magnetlängen implementiert. Dem Hydrauliksystem werden demnach die Druckregelung einzelner Hydraulikzylinder sowie eine metrologische Bestimmung der Durchbiegung des Hauptträgers ermöglicht. Die Durchbiegung der Trägerenden kann hierbei regelungstechnisch minimiert werden. Die statische Abschätzung der verbleibenden Durchbiegung in Abhängigkeit der Magnetlängen wird in der Arbeit beschrieben. Der letzte Teil der Arbeit behandelt die Thematik des obsoleten Schweißsystems und stellt die Umrüstung auf WIG-Kaltdrahtschweißen vor. Das WIG Verfahren erlaubt eine hinreichend große Vorspannung der supraleitenden Spulen und minimiert die Schweißfehler. Basierend auf der Studie wird somit die effiziente Erarbeitung der Marktstudie und der darauf folgenden Angebotsausschreibung ermöglicht.
Heart leadership is a leadership style which focuses on finding purpose and
passion in one’s life and job. The generation Y (Millennials), as a rather
technophile generation entered companies around of the turn of the
millennium. On the one hand, nowadays generation Z with new values, ideas
and requests to their work environment enters companies, and on the other
hand companies need to be attractive for skilled personnel. The heart
leadership concept addresses these requirements. This concept refers to the
ability to use one’s awareness and heart energy to create a culture focused on
exceptional relations, trust, care, spirituality, compassion, positivity, and
development.
The aim of this thesis is to answer the question of how heart leadership impacts
a business in the long run. To answer the research question “How can doing
things in a heart way impact the future of modern businesses?”, a literature
review was conducted.
The beginning of this work provides an explanation of what leadership means,
followed by explaining different leadership styles based on the Full Range of
Leadership Model with a concrete explanation of transformational leadership.
By defining the context of heart leadership with the meaning of the heart, what
aspects this kind of leadership includes, and the definition of human potential,
eleven heart factors that influence a business were derived through repeated
and overlapping attributes which a heart-led leader should have. These factors
show that heart leadership has a positive long-term impact on several areas of
a business, including the increase of overall work performance, mental health,
commitment, engagement, employee retention, resilience, profit and more.
The outcome of this thesis recommends integrating heart leadership in actual
leadership principles in companies. Heart leadership is an extension of
transformational leadership that meets the needs of a new generation,
positively changes the work environment, and enables employees’ full potential
in order to survive as a company in a competitive market and the race for
qualified employees.
Data scientists, researchers and engineers want to understand, whether machine learning models for object detection work accurate and precise. Networks like Yolo use bounding boxes as a result to localize the object in the image.
The principal aim of this paper is to address the problem of a lack of an effective metric for evaluating the results of bounding box regression in object detection networks when boxes do not overlap or lie completely within each other.
The standard known metrics, like IoU, lack of differentiating results, which do not overlap but differ in the distance between predicted bounding box and label.
To solve this challenge, we propose a new metric called UIoU (Unified Intersection over Union) that combines the best properties of existing metrics (IoU, GIoU and DIoU) and extends them with a similarity factor. By assigning weight to each component of the metric, it allows for a clear differentiation between the three possible cases of box positions (not overlapping, overlapping, boxes inside each other).
The result of this paper is a new metric that outperforms the existing metrics such as IoU, GIoU and DIoU by providing a more understandable measure of the performance of object detection models. This provides researchers and users in the field of explainable AI with a metric that allows the evaluation and comparison of prediction and label bounding boxes in an understandable way.
Already having surpassed the previous generation in terms of size of the workforce, Millennials have received extensive attention in media and literature. As critical as this generation might be portrayed in media and sometimes also academic literature, the reality and underlying message of it all is that this generation is rapidly entering the workforce with high expectations, implications are made and companies need to react and adapt accordingly. For a company like thyssenkrupp Presta North America, consisting mainly of employees with an engineering background and seeking for these in a highly competitive job market, understanding this generation, specifically the Millennial Engineers, in order to successfully recruit and retain candidates is imperative for successfully operating in the future. Being natives to information technology, highly motivated, ambitious and determined, Millennials have the potential to have an extremely positive impact on the success of businesses. Reported high self-esteem and narcissistic characteristics make this generation require extensive adaptation and adjustment. Change in the engineering role is happening towards a more dynamic workplace. A modern engineer works in a team environment and interfaces with many different stakeholders. With this development in recent years away from the very traditional role of an engineer, the importance of social and soft skills greatly increased. In order to facilitate this, the processes of organizational socialization play a major role and are an opportunity for employers to influence and shape the adjustment. A well-structured process facilitates adjustment and positive long term outcomes. The question was raised, whether the high expectations of Millennial engineering graduates before their first job reported in literature will change once the work life has been entered. Through a series of qualitative interviews with Millennial engineers at thyssenkrupp Presta North America, the high expectations reported previously were not found. The main objective for the employees surveyed was to simply get started in the work life. In regards to change of expectations, however, much greater emphasis on career progression and training and development possibilities was placed.
The signs of global warming are everywhere, ranging from highest record temperatures in cities to mega wildfires in the amazon. Heat is melting ice glaciers, contributing to floods and rising sea levels.
Transportation is one of the largest carbon-emitting sectors and it is difficult to meet the carbon reduction goals without a significant improvement in the change from Internal Combustion Engine (ICE) vehicles to Electric Vehicles (EVs). EVs are capable of reducing transport related emissions. However, the problem is that EVs on their own haven’t convinced consumers to make the switch and there is a role for policy makers to play.
This study seeks to provide recommendations to support policy makers to come up with measures that if adopted, could increase EV uptake in Singapore. A survey questionnaire has been conducted to discover and understand the factors which affects EV buying decision in Singapore in addition to literature review from past studies.
The main concerns of Singapore car drivers of EVs are that they are too expensive, lack of availability of public charging stations and long charging duration. An experimental component in the survey found that providing information on EVs could increase willingness to purchase an EV.
Analysis from other countries shows that successful governmental policies includes first and foremost, financial incentives to make the prices of EVs as competitive as similar ICE models. Other soft incentives were also implemented which acts as a complement at a later stage of adoption.
Recommendations for policy makers includes actions under the following: National goals/legislation/infrastructure, sales support and availability and quality of information which Singapore policy makers can consider to move towards a renewable and sustainable future.
Country risk affects cross-border investments significantly. Therefore, this paper aims to understand the concept of country risk and the available country risk assessments (models), by comparing and evaluating them. Secondly, the effectiveness of these assessments in predicting an economic downturn will be analysed. Lastly, this paper investigates the determinants behind the country risk models, using country credit ratings as a proxy.
The effectiveness analysis is based on the comparison of the credit ratings with the respective real GDP growth of Malaysia, Mexico, Japan and Portugal in a case study approach. Thereafter, Spearman’s rank order correlation coefficient analysis will be performed to investigate the determinants of the country risk models.
Results from the case study approach show that country risk assessments generally could not predict an impending economic slowdown. In addition, the correlation coefficient analysis illustrates that some variables have in general weak correlations to the credit ratings. For instance, the real GDP growth has mostly weak relationships with the ratings and tends to be statistically insignificant. On the other hand, lending and deposit interest rates have relatively strong correlations to the credit ratings and are significant at 0.01 level for some of the ratings. In addition, Mexico and Japan have the tendency to produce opposite results with the same set of indicators.
Even though investors should not rely on these country risk assessments to forecast a major crisis, the models could act as the basis of risk management. This is because these assessments do provide investors with some useful information.
Despite the growing interest of the media, businesses and consumers in recent years, cryptocurrencies have not reached widespread adoption to date. Research on the factors that induce consumers to use this new technology or that prevent them from using it is scarce. Therefore, this thesis aims at identifying factors that influence consumer adoption of cryptocurrencies. First, a research model based on the Technology Acceptance Model (TAM) was developed and extended by the factors perceived risk and perceived trust. Then, primary data was collected by conducting a survey on consumers’ perception of cryptocurrencies. The hypotheses were tested through a multiple regression analysis and perceived usefulness was found to have the strongest impact on consumers’ intention to use cryptocurrencies, followed by perceived trust. Furthermore, gender has proven to have an effect on the intention to use cryptocurrencies, with male consumers being more likely to use cryptocurrencies.
Understanding Cloud Audits
(2012)
In the wake of the financial crisis of 2007, the largest economies of our times struggled hard with adverse economic shocks. Several central banks (CBs) employed their conventional monetary policy tools to their limits and beyond. When failing in their attempt, unconventional monetary policies got gradually introduced in order to stimulate the overall economy, to alleviate market dysfunctions and to reduce liquidity shortages. Building on diverse research conducted by international researchers and data provided by international economic institutions, this paper gives a comprehensive overview of different types of unconventional monetary policy tools that were, and still are, broadly employed. The concept of Quantitative Easing (QE) with its opportunities and risks will be elaborated, as well as appropriate exit strategies from these unconventional monetary policy measures. Putting a special focus on the QE programs run by the Bank of Japan, the Bank of England and the European Central Bank, the successes and failures of real-world examples of unconventional monetary policies will be analyzed in detail. In order to evaluate the usefulness of QE, a comparison of theoretical and real-world results will be conducted. The paper finds that even though QE had a broad range of positive effects on selected economic aspects, the risks of both over-indebtedness and a too strong dependence of economies on highly accommodative monetary policies prevail. Before considering an exit from QE – if still possible at all – many years of further monetary easing and economic stimulus will pass. The raison d’être of unconventional monetary policies, mainly QE, over an extent period of time is doubtful and will have to be closely monitored in the years to come.
TSE-Signatur Verifier
(2022)
As industrial networks continue to expand and connect more devices and users, they face growing security challenges such as unauthorized access and data breaches. This paper delves into the crucial role of security and trust in industrial networks and how trust management systems (TMS) can mitigate malicious access to these networks.
The TMS presented in this paper leverages distributed ledger technology (blockchain) to evaluate the trustworthiness of blockchain nodes, including devices and users, and make access decisions accordingly. While this approach is applicable to blockchain, it can also be extended to other areas. This approach can help prevent malicious actors from penetrating industrial networks and causing harm. The paper also presents the results of a simulation to demonstrate the behavior of the TMS and provide insights into its effectiveness.
Surge pricing is a dynamic pricing strategy which has been developed by the American ride-sharing platform Uber. Based on demand and supply, the surge pricing algorithm calculates a trip fare for both, riders and drivers. In times when demand outstrips supply in a certain geographic area, the algorithm applies a so-called “surge factor” which is multiplied by the basic trip fare. This way, the provider can calibrate demand and supply until they reach the market equilibrium again. This paper examines whether dynamic surge pricing can also be applied to the offline food retail market. Consequently, it starts by giving some theoretical background on dynamic and surge pricing, and with the aid of a PESTEL analysis, highlights all the factors presenting opportunities and limitations for the implementation of surge pricing in supermarkets. In addition to that, by conducting a SWOT analysis of dynamic surge pricing, this thesis investigates what the prerequisites are to a successful implementation strategy. In the end, it outlines possible consequences for consumers if surge pricing is used in grocery stores. It will be found that, from a theoretic point of view, a dynamic surge pricing strategy is feasible in the offline food retail market. However, it does not present the optimal pricing method for neither of the market participants.
With the fourth industrial revolution, advanced technological products play a key role in the development of all countries around the world. In recent years, there has been a drastic increase in the demand for high-tech merchandises in ASEAN nations. The purpose of this thesis is to identify the trends, opportunities and challenges that German high-tech producers may come across when they want to enter ASEAN markets. In addition to that recommendations on some strategies that could be used by German enterprise (SMEs) to ease entry into this market shall be discussed. The research analysis secondary data from TrendEconomy to determine the trade trends of German high-tech goods in ASEAN area, and then to implement SWOT and five Porter’s force analysis to identify the potential ASEAN markets. The result of this research is that Vietnam is seen as an attractive market for German high-tech products such as aerospace, computer-office machine, pharmaceuticals, scientific instruments and chemistry. Furthermore, Philippines is a potential place for German computer-office machine and electronics-telecommunications, Singapore is a good destination for scientific instruments and armament. In addition to that, Thailand and Malaysia are ideal nations for pharmaceuticals and machinery, respectively.
Trends and Advances in the Characterization of Gas Sensing Materials Based on Semiconducting Oxides
(2018)
Transport mechanisms in nanostructured porous silicon layers for sensor and filter applications
(2012)
Economic growth in China is slowing down and China will no longer be the manufacturer of the world and consumers become more sophisticated. Therefore Chinese companies have to change strategies. This thesis aims to provide a comprehensive analysis of the reasons for Chinese companies transitioning from equipment manufacturers to brand manufacturers, the phase of innovation in China, the internationalization of Chinese brands and accordingly the consumer behaviour. The change is fast and challenging and the Chinese companies have to overcome obstacles like culture, innovation and the country of origin effect. Chinese government is promoting innovation. The quality of Research & Development output lacks behind quantity and is often limited to technology improvements rather than basic research. Government is also pushing companies to go abroad. The biggest obstacle for Chinese consumer brands expanding internationally is the country of origin effect. To compete internationally and to be successful in the long run, Chinese companies have to deliver high product quality and use effective branding. After entering the market with low price products to gain market share, Chinese brands increase product quality and promote the consumer brand. By analyzing the smartphone market, this thesis evaluates the progress and sustainability of changing from low cost to high end manufacturing and branding.
The Sustainable Development Goals (SDGs) of the United Nations focus on key issues for the transformation of our world towards sustainability. We argue for stronger integration of the SDGs into requirements and software engineering and for the creation of methods and tools that support the analysis of potential effects of software systems on sustainability in general and on SDGs in particular. To demonstrate one way of undertaking this integration, we report on how the Sustainability Awareness Framework (SusAF -- a tool developed by the authors of this paper) can be mapped to the SDGs, allowing the identification of potential effects of software systems on sustainability and on the SDGs. This mapping exercise demonstrates that it is possible for requirements engineers working on a specific system to consider that system's impact with respect to SDGs.
Transforming a face-to-face (F2F) medical congress into a virtual experience without losing the added value of the offline event is the challenge many associations and event organizers face in 2020.
Background: The unexpected COVID-19 outbreak has made face-to-face congresses impossible in Q2 of 2020. In order to continue medical education, virtual congresses are organized.
Objectives: The aim of this thesis is to determine the advantages of a virtual congress format and illustrate a way to effectively organize a virtual congress. Moreover, the thesis aims to analyze the performance of the digital experience platform (DXP) created by MCI the Netherlands, taking into consideration different stakeholders’ needs and its future opportunities.
Methods: This bachelor thesis is based on the available literature as well as data from the company MCI the Netherlands and quality interviews were conducted with
10 industry experts.
Results: The digital experience platform can increase registration numbers and share the content with more people worldwide like never before. With the easy accessibility, the DXP offers the possibility to increase audience reach. By offering a long-term learning opportunity the platform enhances the user experience of the delegates. Valuable data insight can be retrieved through the platform and shared with various stakeholders. Evaluating the advantages of virtual congresses, it can be said that virtual congresses will be the future of the event industry, however they will not replace face-to-face congresses but can be seen as an additional learning possibility.
Conclusion: With the digital experience platform MCI the Netherlands was able to successfully transform their internal digital capabilities into a future-proof innovative client solution. MCI is the first company in the European market who offered a virtual experience for more than 10.000 participants and strengthened their position as one of the market leaders.
Employee engagement is crucial for companies because of its positive influence on performance, retention, and profitability. However, the rising appearance of hybrid workplaces and generational changes have presented challenges in maintaining employee engagement. Leadership has been shown to play an important role in developing engaged employees. This paper examines the relationship between transformational leadership and employee engagement and whether gender, presented as male, diverse and female, impacts this relationship.
A sample of 118 respondents, that have worked for over one year under a leader, has been analyzed through simple and multiple regressions. The relationship between transformational leadership and employee engagement proved significantly positive, highlighting the key role leadership plays when fostering engaged employees. However, the moderating relationship of all three genders was not significant. These results suggest that companies should focus on training transformational leaders and engaging employees regardless of the employee's gender.
Software engineering, as a central practice of digitalization, needs to become accountable for sustainability. In light of the ecological crises and the tremendous impact of digital systems on reshaping economic and social arrangements - often with negative side-effects - we need a sustainability transformation of the digital transformation. However, this is a complex and long-term task. In this article we combine an analysis of accountability arrangements in software engineering and a model of sustainability transformations to trace how certain dynamics are starting to make software engineering accountable for sustainability in the technological, cultural, economic and governance domains. The article discusses existing approaches for sustainable software engineering and software engineering for sustainability, traces emerging discourses that connect digitalization and sustainability, highlights new digital business models that may support sustainability and shows governance efforts to highlight “green and digital” policy problems. Yet, we argue that these are so far niche dynamics and that a sustainability transformation requires a collective and long-lasting effort to engender systemic changes. The goal should be to create varied accountability arrangements for sustainability in software engineering which is embedded in complex ways in society and economy.