@article{28465, author = {{Díaz Sánchez, Daniel and Marín López, Andrés and Almenárez Mendoza, Florina and Arias Cabarcos, Patricia and Simon Sherratt, R.}}, journal = {{{IEEE} Commun. Surv. Tutorials}}, number = {{4}}, pages = {{3502--3531}}, title = {{{TLS/PKI Challenges and Certificate Pinning Techniques for IoT and M2M Secure Communications}}}, doi = {{10.1109/COMST.2019.2914453}}, volume = {{21}}, year = {{2019}}, } @article{28467, author = {{Díaz Sánchez, Daniel and Marín López, Andrés and Almenárez Mendoza, Florina and Arias Cabarcos, Patricia}}, journal = {{Sensors}}, number = {{15}}, pages = {{3292}}, title = {{{DNS/DANE Collision-Based Distributed and Dynamic Authentication for Microservices in IoT}}}, doi = {{10.3390/s19153292}}, volume = {{19}}, year = {{2019}}, } @inproceedings{24055, abstract = {{An octave-band voltage-controlled oscillator is phase-locked on the envelope of the pulse train from a mode-locked laser. The locking scheme employs a balanced Mach-Zehnder modulator with two photodiodes as a phase detector. The phase.locked loop has a loop bandwidth of approximately 1MHz and an in-band phase noise of approximately -135dBc/Hz at all frequencies. The integrated jitter from 1kHz to 100MHz is 21fs, 18.3fs and 13.8fs at 5.016GHz, 7.6GHz and 10.032GHz carrier frequencies, respectively. To the authors' knowledge, this is the best jitter performance reported for a PLL with MZM-based phase detection and the first reported PLL of this type featuring an octave-band frequency range.}}, author = {{Bahmanian, Meysam and Tiedau, Johannes and Silberhorn, Christine and Scheytt, Christoph}}, booktitle = {{2019 International Topical Meeting on Microwave Photonics (MWP)}}, pages = {{1--4}}, title = {{{Octave-Band Microwave Frequency Synthesizer Using Mode-Locked Laser as a Reference}}}, doi = {{10.1109/MWP.2019.8892046}}, year = {{2019}}, } @inbook{13653, author = {{Harteis, Christian and Goller, Michael and Fischer, Christoph}}, booktitle = {{Beruf, Beruflichkeit, Employability}}, editor = {{Seifried, Jürgen and Beck, Klaus and Ertelt, Bernd-Joachim and Frey, Andreas}}, pages = {{239--253}}, publisher = {{wbv}}, title = {{{Die Auswirkungen der Digitalisierung auf die Bedeutung beruflicher Qualifikation aus betrieblicher Sicht}}}, year = {{2019}}, } @article{8958, author = {{Goller, Michael and Steffen, Bianca and Harteis, Christian}}, issn = {{1874-785X}}, journal = {{Vocations and Learning}}, number = {{1}}, pages = {{67--85}}, title = {{{Becoming a Nurse Aide: An Investigation of an Existing Workplace Curriculum in a Nursing Home}}}, doi = {{10.1007/s12186-018-9209-z}}, volume = {{12}}, year = {{2019}}, } @article{21617, abstract = {{In the fight against anthropogenic climate change, the benefit of the integration of fluctuating renewable energies (wind and photovoltaics) into the electricity grid is a widely proved concept. At the same time, a fluctuating and decentralised supply of energy, especially at lower voltage levels, leads to a local discrepancy in the power balance between generation and consumption. A possible solution in connection with demand side management is the grid-oriented flexibilisation of energy demand. The present study shows how the use of an innovative hybrid-redundant high-temperature heat system (combined heat and power (CHP), power-to-heat system (PtH), gas boiler) can contribute to a flexibilisation of the electrical energy demand of plastics processing companies. In this context, the flexibilisation potential of a company is to be understood as the grid-related change of the energy supply through a change of the energy sources within the framework of the process heat supply. For this purpose, an omniscient control algorithm is developed that specifies the schedule of the individual system components. A sensitivity analysis is used to test the functionality of the control algorithm. Determination of the electrical flexibilisation potential is carried out via a comprehensive simulation study using Monte Carlo methods. For this purpose, the residual load curves of four characteristic distribution grids with a high share of renewable energies as well as heat load profiles of injection moulding machines are taken into consideration. A frequency distribution provides information on the electrical flexibilisation potential to be expected depending on the various combinations. The evaluation is carried out using a specially introduced logic, which identifies grid-relevant changes in the company's power consumption as flexibilisation potential based on a reference load curve. The results show that a reliable energy supply for production is possible despite flexibilisation. Depending on the grid under consideration, there are differences in the exploitation of the potential, which essentially depends on the installed renewable capacity. Depending on the scenario under consideration, an average of up to 1486 kWhel can be shifted in a positive direction and 1199 kWhel in a negative direction.}}, author = {{Dunkelberg, Heiko and Sondermann, Maximilian and Meschede, Henning and Hesselbach, Jens}}, issn = {{1996-1073}}, journal = {{Energies}}, title = {{{Assessment of Flexibilisation Potential by Changing Energy Sources Using Monte Carlo Simulation}}}, doi = {{10.3390/en12040711}}, year = {{2019}}, } @article{21614, abstract = {{Renewable energy and storage systems are widely discussed to minimise the impact of global warming. In addition to the temporal resolution of simulation tools, also the chosen input data might have a strong impact on the performance of renewable energy systems, and energy storage systems in particular. This study analyses the impact of probabilistic weather data on the design of renewable energy systems. The main objective is hereby the determination of the robustness of a recently state-of-the-art design process of a 100% renewable energy and storage system with varying probabilistic input data. The island of La Gomera, Canary Islands, is taken as a case study. Although all analysed systems show some variance in their results, the combination of vehicle-to-grid and power-to-hydrogen shows the best economic performance. Hereby, small island energy systems depending heavily on wind energy show higher variations than those with high shares of solar energy. This analysis illustrates clearly that the choice of one historical reference year is not suitable to determine the expected performance of an energy system. To learn about their sensitivity, synthetic probabilistic inputs as applied in this study are a good way to determine both the expected mean values and their variance.}}, author = {{Meschede, Henning and Hesselbach, Jens and Child, Michael and Breyer, Christian}}, journal = {{International Journal of Sustainable Energy Planning and Management}}, title = {{{On the impact of probabilistic weather data on the economically optimal design of renewable energy systems – a case study on La Gomera island}}}, doi = {{10.5278/IJSEPM.3142}}, year = {{2019}}, } @article{21618, author = {{Dunkelberg, Heiko and Schlosser, Florian and Veitengruber, Frank and Meschede, Henning and Heidrich, Tobias}}, issn = {{0959-6526}}, journal = {{Journal of Cleaner Production}}, title = {{{Classification and clustering of the German plastic industry with a special focus on the implementation of low and high temperature waste heat}}}, doi = {{10.1016/j.jclepro.2019.117784}}, year = {{2019}}, } @article{21612, author = {{Meschede, Henning and Esparcia, Eugene A. and Holzapfel, Peter and Bertheau, Paul and Ang, Rosario C. and Blanco, Ariel C. and Ocon, Joey D.}}, issn = {{0306-2619}}, journal = {{Applied Energy}}, title = {{{On the transferability of smart energy systems on off-grid islands using cluster analysis – A case study for the Philippine archipelago}}}, doi = {{10.1016/j.apenergy.2019.05.093}}, year = {{2019}}, } @article{21616, author = {{Seevers, J-P. and Johst, J. and Weiß, T. and Meschede, Henning and Hesselbach, J.}}, issn = {{2212-8271}}, journal = {{Procedia CIRP}}, pages = {{695--700}}, title = {{{Automatic Time Series Segmentation as the Basis for Unsupervised, Non-Intrusive Load Monitoring of Machine Tools}}}, doi = {{10.1016/j.procir.2019.03.178}}, year = {{2019}}, } @article{21613, author = {{Meschede, Henning}}, issn = {{0360-5442}}, journal = {{Energy}}, pages = {{810--817}}, title = {{{Increased utilisation of renewable energies through demand response in the water supply sector – A case study}}}, doi = {{10.1016/j.energy.2019.03.137}}, year = {{2019}}, } @inproceedings{13259, author = {{Chen, Wei-Fan and Al-Khatib, Khalid and Hagen, Matthias and Wachsmuth, Henning and Stein, Benno}}, booktitle = {{Proceedings of the Second Workshop on Natural Language Processing for Internet Freedom}}, pages = {{76--82}}, title = {{{Unraveling the Search Space of Abusive Language in Wikipedia with Dynamic Lexicon Acquisition}}}, year = {{2019}}, } @book{19600, abstract = {{Bd. 1: Michael Hofmann, Klaus von Stosch und Swen Schulte Eickholt. Würzburg 2019. 271 S.}}, editor = {{Eke, Norbert Otto and Hofmann, Michael and van Laak, Lothar}}, publisher = {{Königshausen & Neumann}}, title = {{{Profile der Gegenwartsliteratur (Herausgebertätigkeit von Norbert Otto Eke ab Bd. 1, 2019)}}}, year = {{2019}}, } @inproceedings{12918, abstract = {{The test for small delay faults is of major importance for predicting potential early life failures or wearout problems. Typically, a faster-than-at-speed test (FAST) with sev¬eral different frequencies is used to detect also hidden small delays, which can only be propagated over short paths. But then the outputs at the end of long paths may no longer reach their stable values at the nominal observation time and must be considered as unknown (X-values). Thus, test response compaction for FAST must be extremely flexible to cope with high X-rates, which also vary with the test frequencies. Stochastic compaction introduced by Mitra et al. is controlled by weighted pseudo-random signals allowing for easy adaptation to varying conditions. As demonstrated in previous work, the pseudo-random control can be optimized for high fault efficiency or X-reduction, but a given target in fault efficiency cannot be guaranteed. To close this gap, a hybrid space compactor is introduced in this paper. It is based on the observation that many faults are lost in the compaction of relatively few critical test patterns. For these critical patterns a deterministic compaction phase is added to the test, where the existing compactor structure is re-used, but controlled by specifically determined control vectors. }}, author = {{Maaz, Mohammad Urf and Sprenger, Alexander and Hellebrand, Sybille}}, booktitle = {{50th IEEE International Test Conference (ITC)}}, keywords = {{Faster-than-at-speed test, BIST, DFT, Test response compaction, Stochastic compactor, X-handling}}, location = {{Washington, DC, USA}}, pages = {{1--8}}, publisher = {{IEEE}}, title = {{{A Hybrid Space Compactor for Adaptive X-Handling}}}, year = {{2019}}, } @inproceedings{31225, author = {{Mügge, Nils and Kenig, Eugeny}}, booktitle = {{Wärmeübertragung mit Phasenwechsel in fluiden Systemen: Ein Update}}, location = {{Paderborn}}, title = {{{Wärmeübertragung in Mikrokanälen zur Anwendung in neuartigen Wärmemotoren}}}, year = {{2019}}, } @article{15286, author = {{Glouchenkov, Maxim and Kronberg, Alexander and Kenig, Eugeny and Mügge, Nils}}, issn = {{1436-2597}}, journal = {{CITplus}}, number = {{5}}, pages = {{36--37}}, title = {{{Wärmegetriebene Motoren}}}, doi = {{10.1002/citp.201900521}}, volume = {{22}}, year = {{2019}}, } @inbook{31227, author = {{van Laak, Lothar}}, booktitle = {{Rilkes Musikalität}}, editor = {{Martinec, Thomas}}, pages = {{103--111}}, publisher = {{v+r unipress }}, title = {{{Rauschen, Klang und Stille. Zur Musikalität von Literatur am Beispiel von Rilkes Malte Laurids Brigge.}}}, year = {{2019}}, } @book{31093, editor = {{van Laak, Lothar}}, publisher = {{bei Königshauses & Neumann}}, title = {{{„Profile der Gegenwartsliteratur“}}}, year = {{2019}}, } @book{31244, editor = {{Elit, Stefan and Eke, Otto}}, title = {{{Literarische Institutionen (Reihe: Grundthemen der Literaturwissenschaft)}}}, year = {{2019}}, } @article{31265, author = {{Dyatlov, Semyon and Borthwick, David and Weich, Tobias}}, issn = {{1435-9855}}, journal = {{Journal of the European Mathematical Society}}, keywords = {{Applied Mathematics, General Mathematics}}, number = {{6}}, pages = {{1595--1639}}, publisher = {{European Mathematical Society - EMS - Publishing House GmbH}}, title = {{{Improved fractal Weyl bounds for hyperbolic manifolds. With an appendix by David Borthwick, Semyon Dyatlov and Tobias Weich}}}, doi = {{10.4171/jems/867}}, volume = {{21}}, year = {{2019}}, }