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Promoting secure Email communication and authentication
(2017)Mensch und Computer 2017 - WorkshopbandNowadays, the possibility to communicate securely is crucial for users in the private as well as in the business context. However, to do so they have to face problems regarding mismatching mental models of encryption and bad usability not only concerning the encryption, but also the authentication process. To solve this problem, we evaluate users perception on encryption and authentication schemes in order to (1) derive a process, which ...Conference Paper -
Security vs. privacy? User preferences regarding text passwords and biometric authentication
(2017)Mensch und Computer 2017 - WorkshopbandAlthough text passwords suffer from several flaws, they are still wide-spread. Biometric authentication schemes are one possible alternative.However, previous study results suggest there might be two user groups preferring either knowledge-based or biometric authentication, due to different reasons. We conducted an online survey with 95 German participants to test this assumption. Our results provide evidence for the existence of two user ...Conference Paper -
Hybrid Air-Conditioning for Electric Vehicles by Combining a Heating and a Desiccant System
(2017)26th Aachen Colloquium Automobile and Engine TechnologyConference Paper -
FPGA design of low-complexity joint channel estimation and data detection for large SIMO wireless systems
(2017)2017 IEEE International Symposium on Circuits and Systems (ISCAS)Joint channel estimation and data detection (JED) enables near-optimal error-rate performance in realistic wireless communication systems that suffer from channel estimation errors. In this paper, we propose a new JED algorithm and a corresponding FPGA design for large single-input multiple-output (SIMO) wireless systems that use constant-modulus constellations. Our algorithm, referred to as PrOX (short for PRojection Onto conveX hull), ...Conference Paper -
Evaluating different upscaling approaches to derive the actual power of distributed PV systems
(2017)The power generated by distributed PV systems within a given region is an important information e.g. for grid operators. But PV power measurements are often only available for a small fraction of systems. Hence, various upscaling approaches estimate the power of a large number of unmeasured photovoltaic systems based on these measured reference units. This paper evaluates the application of different methods for upscaling PV power. Results ...Conference Paper -
Giuseppe Sommaruga (1867–1917). Un protagonista del liberty
(2017)Giuseppe Sommaruga (1867–1917). Un protagonista del liberty. Catalogo della mostraConference Paper -
Broadband electromechanical spectroscopy: A method for measuring the dynamic electromechanical response of ferroelectrics
(2017)Conference Proceedings of the Society for Experimental Mechanics Series ~ Micro and NanomechanicsConference Paper -
Enabling Independent Navigation for Visually Impaired People through a Wearable Vision-Based Feedback System
(2017)2017 IEEE International Conference on Robotics and Automation (ICRA)This work introduces a wearable system to provide situational awareness for blind and visually impaired people. The system includes a camera, an embedded computer and a haptic device to provide feedback when an obstacle is detected. The system uses techniques from computer vision and motion planning to (1) identify walkable space; (2) plan step-by-step a safe motion trajectory in the space, and (3) recognize and locate certain types of ...Conference Paper -
Zur Erhaltung des nicht Haltbaren
(2017)Veröffentlichungen des Arbeitskreises Theorie und Lehre der Denkmalpflege ~ Das Digitale und die Denkmalpflege: Bestandserfassung-Denkmalvermittlung-Datenarchivierung-Rekonstruktion verlorener Objekte: Chancen und Grenzen im Einsatz digitaler Technologien: Veränderungen in der Praxis von Denkmalpflege und KulturgutsicherungConference Paper -
Strukturdynamik und Erdbebeningenieurwesen in der universitären Ausbildung für Bauingenieure – Ein Diskussionsbeitrag aus Deutschland, Österreich und der Schweiz
(2017)Tagungsband der 15. D-A-CH Tagung in Weimar: Erdbebeningenieurwesen und BaudynamikConference Paper