Fakultät Kommunikation und Umwelt
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Institute
Die Veränderungen der Arbeitswelt im Kontext der Industrie 4.0 können dazu führen, dass Arbeitsplätze und Arbeitsaufgaben durch intelligente Systeme substituiert werden. Dieser Wandel führt zu einer erhöhten Arbeitsplatzunsicherheit unter den Beschäftigten in Deutschland. Arbeitsplatzunsicherheit birgt weitreichende negative Konsequenzen für die beschäftigten Personen und den Erfolg einer Organisation. Beispiele stellen die Verschlechterung der psychischen und physischen Gesundheit der Beschäftigten, sinkende Arbeitszufriedenheit und eine erhöhte Kündigungsabsicht dar. Aus diesem Grund stellt die Prävention von Arbeitsplatzunsicherheit, besonders in Zeiten der Industrie 4.0, eine wichtige Managementaufgabe für Unternehmen dar. Zudem sollten Organisationen versuchen, die daraus resultierenden Folgen, zu reduzieren. Die vorliegende Bachelorarbeit befasst sich mit der Forschungsfrage, wie Arbeitsplatzunsicherheit und die zahlreichen negativen Folgen der Arbeitsplatzunsicherheit reduziert werden können. Auf Grundlage einer systematischen Literaturrecherche werden relevante Variablen identifiziert und Handlungsempfehlungen für Unternehmen formuliert, welche Interventionsmaßnahmen getroffen werden sollten, damit Arbeitsplatzunsicherheit in Organisationen reduziert werden kann. Die Ergebnisse zeigen, dass besonders eine frühzeitige und ehrliche Kommunikation, Verfahrensfairness, Partizipation an Entscheidungen und das Trainieren von Copingstrategien die empfundene Arbeitsplatzunsicherheit reduzieren können. Des Weiteren sollten Beschäftigte ausreichend weitergebildet werden, um den neuen Anforderungen der Industrie 4.0 gewachsen zu sein. Diese Faktoren spielen eine große Rolle in der Prävention von Arbeitsplatzunsicherheit. Aus den Ergebnissen der vorliegenden Arbeit lassen sich wichtige Anregungen für die organisationale Praxis ableiten. Um die Gesundheit ihrer Mitarbeitenden zu schützen und die Effektivität des Unternehmens besonders in Zeiten der Industrie 4.0 aufrecht zu erhalten, sollten Unternehmen somit besonderen Fokus auf die Vorbeugung von Arbeitsplatzunsicherheit legen.
Asylrecht im Grundgesetz
(2018)
The German logistics company Schenker AG categorizes its customers into so-called vertical markets. For instance; category “Automotive” is assigned to car manufacturer BMW AG. The classification allows the company to evaluate its revenue and profits on different customer segments which, in turn, has an impact on Schenker’s strategic planning.
Until now the assignment is carried out manually which means that someone from sales department should perform some research on a customer’s public profile whenever a new customer is registered in the database. With the rapid growth of global trade in recent years and Schenker’s expansion to the Asian market with thousands of new customers the manual approach is no longer sustainable in a global market.
This thesis provides an alternative solution based on scraping customer data available in the web and classification of the extracted content. We deal with three significant difficulties: find web data related to a given customer name (we do have a company name but no homepage URL in Schenker database), extract a predictive portion of the data without introducing too much noise and, finally, set up a classification algorithm. Most importantly, the whole process needs to be implemented automatically.
For the classification task, we have identified two tree-based classification algorithms random forest and extreme gradient boosting (xgboost). Random forest performs better by using package ranger with an overall 52% accuracy and 87.8% multiclass area under the curve. On the other hand, xgboost takes less time to compute, but the accuracy is poor as compared to random forest.
As the fuel demands are increasing and oil reserves are depleting, the need for alternative fuels is becoming increasingly necessary. Fast pyrolysis has received considerable attention in the conversion of biomass into bio-oils which can be used for transportation fuel production. However, bio-oil produced from conventional fast pyrolysis has poor quality mainly due to its high amount of oxygenated compounds and requires upgrading before it can be used as transportation fuel. Catalytic upgrading is a prospective process in which oxygen can be removed from the bio-oil using a catalyst, which was studied in this paper. The main objective of this paper is to investigate the catalytic effects of six applied catalysts on the quality of the bio-oil derived from wheat/barley straw biomass. Fast pyrolysis of the biomass feedstock was performed in an ablative reactor at 550 ℃, and the pyrolysis vapors were led through a catalytic layer (at 400 ℃) in a second reactor for upgrading. Different properties were analyzed for evaluating the quality of the upgraded bio-oils, including water content (for calculating organic content), total acid number (TAN), higher heating value (HHV), elemental composition, and chemical composition.
It was found that all catalysts, especially activated carbons (SC40 and SC44), reduced the tarry phase yield with increasing aqueous yield, resulting in the upgraded bio-oils with lower carbon and higher oxygen contents due to their catalytic activities. Moreover, the use of catalysts significantly reduced the sulfur content,making the final bio-oils more attractive due to the environmental concerns. SC40 was the best catalyst in increasing phenols yield and decreasing acids and ketones yields. The zeolite catalysts showed good selectivity to phenols production; the increasing load of nickel ions (Ni) on HZSM-5 slightly enhanced the formation of phenols and eliminated the formation of acids and ketones compared to unmodified HZSM-5. The upgraded bio-oil is still not qualified to be used as transportation fuels. However, it can be used as feedstock for producing specific chemicals in the modern refineries.
Die Schleupen AG ändert ihre Entwicklungsarchitektur zu Continuous Delivery (CD). Continuous Delivery beschreibt eine Reihe von Vorgängen, die als Ziel eine schnelle und sichere Softwarebereitstellung haben. Am Ende der Umstellung wird das Unternehmen eine Ansammlung von automatisierten Schritten besitzen.
In dieser Bachelorarbeit wird ein Monitoringsystem entwickelt, das eine Überwachung des Continuous Delivery Prozesses ermöglicht. Die wesentlichen Ziele sind die Erstellung eines Dashboards und das Sammeln von Telemetriedaten.
The development of technologies that created FinTechs have brought new possibilities for customers into life that provide a quick and convenient handling of operations by covering various segments of the financial industry. However, the innovations also implicate drawbacks: Traditional banks may be threatened due to a loss of customers. This thesis evaluates to which extent this case can be measured by executing quantitative research methods as well as qualitative research methods for the purpose of gaining information from a bank’s perspective as well as opinions from customers. The result of this empirical study is that there is a certain correlation between the development of FinTechs and a threat caused by FinTechs although the latter is rather weak. Furthermore, this thesis indicates the knowledge of customers regarding FinTechs and their willingness to face said innovations.