Suche
Anzeige der Dokumente 1-10 von 69
Konferenzveröffentlichung
Green Luxury: New Divide in Positioning Strategies Needed?
(National University of Political Studies and Public Administration (SNSPA), Faculty of ManagementTritonic, 2017)
A basic and commonly shared implicit definition of luxury is “something superfluous.” Consuming such products and services contradicts the modern paradigm of sustainable consumption. However, luxury vendors are frequently introducing new technologies and better working conditions on a large scale, including natural colors and fair treatment of labor in the fashion industry, as well as fully electric-fueled cars, which Tesla has been producing. Previous research suggests that luxury and sustainability are incompatible. ...
Konferenzveröffentlichung
A GaN-based DC/DC converter for e-vehicles applications
(IEEE, 2020)
This paper presents a 4 kW GaN-based galvanically isolated bidirectional DC/DC converter suitable for on-board auxiliary power supply systems, interconnecting the HV battery with the LV power system. To enable the trend towards higher levels of electrification, a second LV level of 48 V is introduced to supply the high-power consumers, relieving the 12 V grid on the one hand and/or avoiding using additional costly isolated converters connected to the HV batteries on the other. The built converter prototypes aim to ...
Konferenzveröffentlichung
Quality Improvement In Manual Assembly By Software-Based Evaluation Of Human Misconduct
(European Safety and Reliability Association, 2019)
For reaching a level of high quality, production processes must be carried out both, economically and reliably. Despite automation and digitalization, manual assembly operations still constitute a key element for creating efficient production processes. However, in practice, creating robust and efficient manual assembly processes often fails because the occurrence of human errors cannot be quantified prospectively. Therefore, a corresponding procedure has been developed at the institutes of the authors. The module-based ...
Konferenzveröffentlichung
Impact of implementation of auxiliary bias-windings on controllable inductors for power electronic converters
(IEEE, 2020)
Magnetic devices are an important part of electronic converters. They can be used to control some properties of the converters. There are three different control methods using an auxiliary bias-winding. In the presented paper, the impact of the implementation of the auxiliary bias-winding was studied for mixed biasing. Seven different designs were investigated in small signal measurements and 3D-FEM-simulations. The results were proven by calculated results of equivalent diagram circuits, which have been developed. ...
Konferenzveröffentlichung
The logarithmic finite element method
(International Center for Numerical Methods in Engineering (CIMNE), 2018)
The Logarithmic finite element (LogFE) method extends the Ritz-Galerkin method to approximations on a non-linear finite-dimensional manifold in the infinitedimensional solution space. Formulating the interpolant on the logarithmic space allows for a novel treatment of the rotational component of the deformation, and induces a strong coupling between rotations and translations. The Logarithmic finite element method provides
a transformation of the initial configuration that is not restricted to an isoparametric formulation.
Konferenzveröffentlichung
Outsmarting the MNCs by fitting strategic manoeuvres to national framing: evidence from India
(National University of Political Studies and Public Administration (SNSPA), Faculty of ManagementTritonic, 2017)
This paper focuses on how Indian home-grown companies captured MNCs market in India with the help of strategic maneuvering and understanding their own capabilities. Seizing the framework of Porter’s National Diamond this research follows a caselet approach for illustrating these strategies. The study’s originality springs from understanding changes in demand pattern brought by home-grown companies in the Indian market. A key implication of this paper is that the demand conditions and firm strategy (by means of targeting ...
Konferenzveröffentlichung
Same Same But Different? A Two-Foci Perspective on Trust in Information Systems
(ScholarSpace, 2020-01-07)
Trust is one of the most important factors driving the adoption and use of information systems. The goal of this paper is to provide a first evaluation of a conceptual piece claiming a) that users distinguish between their trust in an IS and the provider of this IS and b) that both kinds of trust are important for the success sustainable success of IS providers. To evaluate the claims, a research model is developed and evaluated using data of 234 students during the introduction of a new IS at an European university. ...
Konferenzveröffentlichung
Controlled magnetic devices in power electronic applications
(IEEE, 2017)
Almost all power electronic converters require magnetic devices and some properties of the converters can be controlled with magnetics. New magnetic materials enable implementation of magnetic control of converters also in high switching frequency applications. The presented paper gives an overview about controllability of magnetic devices in theory and practice, simulation approaches and examples. The focus is on electrically controllable magnetic devices. This means that an additional control winding is wound on ...
Konferenzveröffentlichung
Referring nouns in name-informing quotation: A copula-based approach
(Universität OsnabrückenHumboldt-Universität zu Berlin, 2020)
In name-informing constructions like "The phenomenon is called a “sun halo”", the noun mentioned in the quotation (a “sun halo”) adopts a referring interpretation, as indicated by the determiner. As an account, we claim predicates like call to introduce a copular relation, which is the source of referring uses of nominals in name-informing quotation: To call y “n” entails that y is an n. Two copula types are argued to be covertly contained in name-informing constructions, an identificational copula and an equative ...
Konferenzveröffentlichung
Design of Photovoltaic Microinverter for Off-Grid and Grid-Parallel Applications
(VDE Verlag, 2014)
The design and construction of a 500VA microinverter for photovoltaic applications is presented. The developed microinverter is capable of operating as a standalone AC voltage source for small loads or, alternatively, as a grid-parallel system. Possible applications are therefore small off-grid installations as well as installations where space constraints do not allow enough modules to be combined to use string inverters. The design of the microinverter is based on a two stage concept. Two alternative topologies for ...