TY - CHAP A1 - Dinghofer, Kai A1 - Hartung, Frank T1 - Analysis of Criteria for the Selection of Machine Learning Frameworks T2 - 2020 International Conference on Computing, Networking and Communications (ICNC) N2 - With the many achievements of Machine Learning in the past years, it is likely that the sub-area of Deep Learning will continue to deliver major technological breakthroughs [1]. In order to achieve best results, it is important to know the various different Deep Learning frameworks and their respective properties. This paper provides a comparative overview of some of the most popular frameworks. First, the comparison methods and criteria are introduced and described with a focus on computer vision applications: Features and Uses are examined by evaluating papers and articles, Adoption and Popularity is determined by analyzing a data science study. Then, the frameworks TensorFlow, Keras, PyTorch and Caffe are compared based on the previously described criteria to highlight properties and differences. Advantages and disadvantages are compared, enabling researchers and developers to choose a framework according to their specific needs. Y1 - 2020 U6 - https://doi.org/10.1109/ICNC47757.2020.9049650 N1 - 2020 International Conference on Computing, Networking and Communications (ICNC), 17-20 February 2020, Big Island, HI, USA SP - 373 EP - 377 PB - IEEE CY - New York, NY ER - TY - CHAP A1 - Hingley, Peter A1 - Dikta, Gerhard T1 - Finding a well performing box-jenkins forecasting model for annualised patent filings counts T2 - International Symposium on Forecasting, Thessaloniki, Greece, June 2019 Y1 - 2019 ER - TY - CHAP A1 - Finger, Felix A1 - de Vries, Reynard A1 - Vos, Roelof A1 - Braun, Carsten A1 - Bil, Cees T1 - A comparison of hybrid-electric aircraft sizing methods T2 - AIAA Scitech 2020 Forum N2 - The number of case studies focusing on hybrid-electric aircraft is steadily increasing, since these configurations are thought to lead to lower operating costs and environmental impact than traditional aircraft. However, due to the lack of reference data of actual hybrid-electric aircraft, in most cases, the design tools and results are difficult to validate. In this paper, two independently developed approaches for hybrid-electric conceptual aircraft design are compared. An existing 19-seat commuter aircraft is selected as the conventional baseline, and both design tools are used to size that aircraft. The aircraft is then re-sized under consideration of hybrid-electric propulsion technology. This is performed for parallel, serial, and fully-electric powertrain architectures. Finally, sensitivity studies are conducted to assess the validity of the basic assumptions and approaches regarding the design of hybrid-electric aircraft. Both methods are found to predict the maximum take-off mass (MTOM) of the reference aircraft with less than 4% error. The MTOM and payload-range energy efficiency of various (hybrid-) electric configurations are predicted with a maximum difference of approximately 2% and 5%, respectively. The results of this study confirm a correct formulation and implementation of the two design methods, and the data obtained can be used by researchers to benchmark and validate their design tools. Y1 - 2020 U6 - https://doi.org/10.2514/6.2020-1006 N1 - AIAA Scitech 2020 Forum, Driving aerospace solutions for global challenges, Orlando, 06. - 10. January 2020 ER - TY - CHAP A1 - Götten, Falk A1 - Finger, Felix A1 - Marino, Matthew A1 - Bil, Cees A1 - Havermann, Marc A1 - Braun, Carsten T1 - A review of guidelines and best practices for subsonic aerodynamic simulations using RANS CFD T2 - Asia-Pacific International Symposium on Aerospace Technology (APISAT), At Gold Coast, Australia, 04. - 06. Dezember 2019 Y1 - 2019 SN - 978-1-925627-40-4 ER - TY - CHAP A1 - Finger, Felix A1 - Braun, Carsten A1 - Bil, Cees T1 - Comparative assessment of parallel-hybrid-electric propulsion systems for four different aircraft T2 - AIAA Scitech 2020 Forum N2 - As battery technologies advance, electric propulsion concepts are on the edge of disrupting aviation markets. However, until electric energy storage systems are ready to allow fully electric aircraft, the combination of combustion engine and electric motor as a hybrid-electric propulsion system seems to be a promising intermediate solution. Consequently, the design space for future aircraft is expanded considerably, as serial-hybrid-, parallel-hybrid-, fully-electric, and conventional propulsion systems must all be considered. While the best propulsion system depends on a multitude of requirements and considerations, trends can be observed for certain types of aircraft and certain types of missions. This paper provides insight into some factors that drive a new design towards either conventional or hybrid propulsion systems. General aviation aircraft, VTOL air taxis, transport aircraft, and UAVs are chosen as case studies. Typical missions for each class are considered, and the aircraft are analyzed regarding their take-off mass and primary energy consumption. For these case studies, a high-level approach is chosen, using an initial sizing methodology. Results indicate that hybrid-electric propulsion systems should be considered if the propulsion system is sized by short-duration power constraints (e.g. take-off, climb). However, if the propulsion system is sized by a continuous power requirement (e.g. cruise), hybrid-electric systems offer hardly any benefit. Y1 - 2020 U6 - https://doi.org/10.2514/6.2020-1502 N1 - AIAA Scitech 2020 Forum, Driving aerospace solutions for global challenges, Orlando, 06. - 10. January 2020 ER - TY - CHAP A1 - Kreyer, Jörg A1 - Müller, Marvin A1 - Esch, Thomas T1 - A Map-Based Model for the Determination of Fuel Consumption for Internal Combustion Engines as a Function of Flight Altitude N2 - In addition to very high safety and reliability requirements, the design of internal combustion engines (ICE) in aviation focuses on economic efficiency. The objective must be to design the aircraft powertrain optimized for a specific flight mission with respect to fuel consumption and specific engine power. Against this background, expert tools provide valuable decision-making assistance for the customer. In this paper, a mathematical calculation model for the fuel consumption of aircraft ICE is presented. This model enables the derivation of fuel consumption maps for different engine configurations. Depending on the flight conditions and based on these maps, the current and the integrated fuel consumption for freely definable flight emissions is calculated. For that purpose, an interpolation method is used, that has been optimized for accuracy and calculation time. The mission boundary conditions flight altitude and power requirement of the ICE form the basis for this calculation. The mathematical fuel consumption model is embedded in a parent program. This parent program presents the simulated fuel consumption by means of an example flight mission for a representative airplane. The focus of the work is therefore on reproducing exact consumption data for flight operations. By use of the empirical approaches according to Gagg-Farrar [1] the power and fuel consumption as a function of the flight altitude are determined. To substantiate this approaches, a 1-D ICE model based on the multi-physical simulation tool GT-Suite® has been created. This 1-D engine model offers the possibility to analyze the filling and gas change processes, the internal combustion as well as heat and friction losses for an ICE under altitude environmental conditions. Performance measurements on a dynamometer at sea level for a naturally aspirated ICE with a displacement of 1211 ccm used in an aviation aircraft has been done to validate the 1-D ICE model. To check the plausibility of the empirical approaches with respect to the fuel consumption and performance adjustment for the flight altitude an analysis of the ICE efficiency chain of the 1-D engine model is done. In addition, a comparison of literature and manufacturer data with the simulation results is presented. Y1 - 2020 U6 - https://doi.org/10.25967/490162 N1 - 68. Deutscher Luft- und Raumfahrtkongress 30.09.-02.10.2019, Darmstadt PB - DGLR CY - Bonn ER - TY - CHAP A1 - Finger, Felix A1 - Götten, Falk A1 - Braun, Carsten A1 - Bil, Cees T1 - Cost Estimation Methods for Hybrid-Electric General Aviation Aircraft T2 - Asia Pacific International Symposium on Aerospace Technology. APISAT 2019 Y1 - 2019 SP - 1 EP - 13 ER - TY - CHAP A1 - Laack, Walter van T1 - Schnittstelle Tod: Aufbruch oder Ende - Kontakte oder Hirngespinste? N2 - Tagungsbeiträge des 6. Europäischen Seminars am 09. November 2019 in Aachen zum Thema Nahtoderfahrungen mit dem Serientitel: "Schnittstelle Tod" Y1 - 2020 SN - 978-3-936624-51-9 N1 - 6. „Jour Fixe“ im Dreiländereck zum Themenkreis „Nahtoderfahrungen (NTE)“: Schnittstelle Tod „Aufbruch oder Ende – Kontakte oder Hirngespinste?“, 9. November 2019, Aachen PB - van Laack GmbH CY - Aachen ER - TY - CHAP A1 - Striegan, Constantin J. D. A1 - Struth, Benjamin A1 - Dickhoff, Jens A1 - Kusterer, Karsten A1 - Funke, Harald A1 - Bohn, Dieter T1 - Numerical Simulations of the Micromix DLN Hydrogen Combustion Technology with LES and Comparison to Results of RANS and Experimental Data T2 - Proceedings of International Gas Turbine Congress 2019 Tokyo, November 17-22, 2019, Tokyo, Japan. Y1 - 2019 SN - 978-4-89111-010-9 N1 - IGCT-2019-147 SP - 1 EP - 9 ER - TY - CHAP A1 - Funke, Harald A1 - Beckmann, Nils T1 - Flexible Fuel Operation of a Dry-Low-Nox Micromix Combustor with Variable Hydrogen Methane Mixtures T2 - Proceedings of International Gas Turbine Congress 2019 Tokyo, November 17-22, 2019, Tokyo, Japan Y1 - 2019 SN - 978-4-89111-010-9 N1 - IGTC-2019-013 ER - TY - CHAP A1 - Horikawa, Atsushi A1 - Okada, Kunio A1 - Uto, Takahiro A1 - Uchiyama, Yuta A1 - Wirsum, Manfred A1 - Funke, Harald A1 - Kusterer, Karsten T1 - Application of Low NOx Micro-mix Hydrogen Combustion to 2MW Class Industrial Gas Turbine Combustor T2 - Proceedings of International Gas Turbine Congress 2019 Tokyo, November 17-22, 2019, Tokyo, Japan Y1 - 2019 SN - 978-4-89111-010-9 N1 - IGTC-2019-129 SP - 1 EP - 6 ER - TY - CHAP A1 - Funke, Harald A1 - Beckmann, Nils A1 - Abanteriba, Sylvester T1 - Development and Testing of a FuelFlex Dry-Low-NOx Micromix Combustor for Industrial Gas Turbine Applications With Variable Hydrogen Methane Mixtures T2 - ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition. June 17–21, 2019 Phoenix, Arizona, USA. Volume 4A: Combustion, Fuels, and Emissions Y1 - 2019 SN - 978-0-7918-5861-5 U6 - https://doi.org/10.1115/GT2019-90095 ER - TY - CHAP A1 - Funke, Harald A1 - Beckmann, Nils A1 - Abanteriba, Sylvester T1 - A comparison of complex chemistry mechanisms for hydrogen methane blends based on the Sandia / Sydney Bluff-Body Flame HM1 T2 - Proceedings of the Eleventh Asia‐Pacific Conference on Combustion (ASPACC 2017), New South Wales, Australia, 10-14 December 2017 Y1 - 2017 SN - 978-1-5108-5646-2 SP - 262 EP - 265 ER - TY - CHAP A1 - Braun, Sebastian A1 - Cheng, Chi-Tsun A1 - Lai, Chow Yin A1 - Wollert, Jörg T1 - Microservice Architecture for Automation - Realization by the example of a model-factory’s manufacturing execution system T2 - Proceedings of the 23rd World Multi-Conference on Systemics, Cybernetics and Informatics: WMSCI 2019 Y1 - 2019 SP - 33 EP - 37 ER - TY - CHAP A1 - Bung, Daniel Bernhard A1 - Oertel, Mario T1 - Wave breaking over a submerged horizontal plate: Optical Flow, LES and RANS T2 - E-proceedings of the 38th IAHR World Congress September 1-6, 2019, Panama City, Panama Y1 - 2019 U6 - https://doi.org/10.3850/38WC092019-0509 SP - 3690 EP - 3698 ER - TY - CHAP A1 - Tullis, Blake P. A1 - Crookston, Brian M. A1 - Bung, Daniel Bernhard T1 - Weir head-discharge relationships: A multi-lab exercise T2 - E-proceedings of the 38th IAHR World Congress September 1-6, 2019, Panama City, Panama Y1 - 2019 SP - 1 EP - 15 ER - TY - CHAP A1 - Valero, Daniel A1 - Kramer, Matthias A1 - Bung, Daniel Bernhard A1 - Chanson, Hubert T1 - A stochastic bubble generator for air-water flow research T2 - E-proceedings of the 38th IAHR World Congress, September 1-6, 2019, Panama City, Panama Y1 - 2019 U6 - https://doi.org/10.3850/38WC092019-0909 SP - 5714 EP - 5721 ER - TY - CHAP A1 - Gerhards, Benjamin A1 - Schleser, Markus A1 - Otten, Christian T1 - Advancements of mobile vacuum laser welding for industrial thick sheet applications T2 - Conference Proceedings 72nd IIW Annual Assembly and International Conference, 7-12 July 2019, Bratislava Y1 - 2019 SP - 1 EP - 8 ER - TY - CHAP A1 - Gerhards, Benjamin A1 - Schleser, Markus A1 - Otten,, Christian A1 - Schwarz, Alexander A1 - Gebhardt, Andreas T1 - Innovative Laser Beam Joining Technology for Additive Manufactured Parts T2 - Conference Proceedings 72nd IIW Annual Assembly and International Conference, 7-12 July 2019, Bratislava Y1 - 2019 SP - 1 EP - 8 ER - TY - CHAP A1 - Eschler, Eric A1 - Wozniak, Felix A1 - Richter, Christoph A1 - Drechsler, Klaus T1 - Materialanalyse an lokal verstärkten Triaxialgeflechten T2 - Leichtbau in Forschung und industrieller Anwendung von der Nano- bis zur Makroebene, LLC, Landshuter Leichtbau-Colloquium, 9 Y1 - 2019 SN - 978-3-9818439-2-7 SP - 120 EP - 131 PB - Leichtbau Cluster CY - Landshut ER - TY - CHAP A1 - Rings, René A1 - Ludowicy, Jonas A1 - Finger, Felix A1 - Braun, Carsten A1 - Bil, Cees T1 - Sensitivity Analysis of General Aviation Aircraft with Parallel Hybrid-Electric Propulsion Systems T2 - Asia Pacific International Symposium on Aerospace Technology. APISAT 2019 Y1 - 2019 ER - TY - CHAP A1 - Ludowicy, Jonas A1 - Rings, René A1 - Finger, Felix A1 - Braun, Carsten A1 - Bil, Cees T1 - Impact of Propulsion Technology Levels on the Sizing and Energy Consumption for Serial HybridElectric General Aviation Aircraft T2 - Asia Pacific International Symposium on Aerospace Technology. APISAT 2019 Y1 - 2019 ER - TY - CHAP A1 - Baader, Fabian A1 - Keller, Denis A1 - Lehmann, Raphael A1 - Gerber, Lukas A1 - Reiswich, Martin A1 - Dachwald, Bernd A1 - Förstner, Roger T1 - Operating melting probes for ice penetration under sublimation conditions and in reduced gravity on a sounding rocket T2 - Proceedings of the 24th ESA Symposium on European Rocket and Balloon Programmes and related Research Y1 - 2019 SN - 0379-6566 N1 - 24th PAC Symposium 2019 ER - TY - CHAP A1 - Eichler, Fabian A1 - Skupin, Marco A1 - Thurn, Laura A1 - Kasch, Susanne A1 - Schmidt, Thomas T1 - Operating limits for beam melting of glass materials T2 - Modern Technologies in Manufacturing (MTeM 2019) N2 - Laser-based Additive Manufacturing (AM) processes for the use of metals out of the powder bed have been investigated profusely and are prevalent in industry. Although there is a broad field of application, Laser Powder Bed Fusion (LPBF), also known as Selective Laser Melting (SLM) of glass is not fully developed yet. The material properties of glass are significantly different from the investigated metallic material for LPBF so far. As such, the process cannot be transferred, and the parameter limits and the process sequence must be redefined for glass. Starting with the characterization of glass powders, a parameter field is initially confined to investigate the process parameter of different glass powder using LPBFprocess. A feasibility study is carried out to process borosilicate glass powder. The effects of process parameters on the dimensional accuracy of fabricated parts out of borosilicate and hints for the post-processing are analysed and presented in this paper. Y1 - 2019 U6 - https://doi.org/10.1051/matecconf/201929901004 N1 - MATEC Web of Conferences 299; MTeM 2019 VL - 299 IS - Article 01004 ER - TY - CHAP A1 - Abbas, Karim A1 - Thurn, Laura A1 - Kessler, Julia A1 - Eichler, Fabian T1 - Basic research of the consideration of additive manufactured lattice structures under thermoand fluid dynamic loads T2 - Modern technologies in manufacturing (MTeM 2019) Y1 - 2019 U6 - https://doi.org/10.1051/matecconf/201929901009 N1 - MATEC Web of Conferences 299; MTeM 2019 VL - 299 IS - Article 01009 ER - TY - CHAP A1 - Luft, Angela A1 - Gebhardt, Andreas A1 - Balc, Nicolae T1 - Challenges of additive manufacturing in production systems T2 - Modern technologies in manufacturing (MTeM 2019) Y1 - 2019 U6 - https://doi.org/10.1051/matecconf/201929901003 N1 - MATEC Web of Conferences 299; MTeM 2019 VL - 299 IS - Article 01003 ER - TY - CHAP A1 - Kerpen, Nils B. A1 - Schoonees, Talia A1 - Schlurmann, Torsten A1 - Valero, Daniel A1 - Bung, Daniel Bernhard T1 - waveSTEPS – Wellenauf- und Wellenüberlauf an getreppten Deckwerken T2 - 24. KFKI-Seminar 2019, 21.11.2019 Y1 - 2019 ER - TY - CHAP A1 - Matcha, Heike A1 - Karzel, Rüdiger A1 - Quasten, Gero T1 - Architectural Design with Parametric Modeling & Customized Mass Production: Explorations and Case Studies in Architectural Design and Production Methods T2 - Language and the Scientific Imagination. The 11th International Conference of ISSEI, Language Centre, University of Helsinki (Finland) 28 July - 2 August 2008 Y1 - 2008 ER - TY - CHAP A1 - Matcha, Heike T1 - Parametric possibilities: designing with parametric modelling T2 - Predicting the Future [25th eCAADe Conference Proceedings] Y1 - 2007 SN - 978-0-9541183-6-5 SP - 849 EP - 856 ER - TY - CHAP A1 - Karzer, Rüdiger A1 - Matcha, Heike T1 - Experimental design-build: teaching parameter-based design T2 - Computation: The New Realm of Architectural Design [27th eCAADe Conference Proceedings] Y1 - 2009 SN - 978-0-9541183-8-9 U6 - https://doi.org/10.52842/conf.ecaade.2009.153 SP - 153 EP - 158 ER - TY - CHAP A1 - Matcha, Heike A1 - Quasten, Gero T1 - A Parametric-Typological Tool: More Diversity for Mass Produced Single Family Homes Through Parametrized Design and Customized Mass Production T2 - Computation: The New Realm of Architectural Design [27th eCAADe Conference Proceedings Y1 - 2009 SN - 978-0-9541183-8-9 SP - 409 EP - 416 ER - TY - CHAP A1 - Matcha, Heike A1 - Ljubas, Ante T1 - Parametric Origami: Adaptable temporary buildings T2 - Future cities: 28th eCAADe Conference Proceedings. eCAADe: Conferences. Zurich, Switzerland Y1 - 2010 SN - 978-0-9541183-7-2 SP - 243 EP - 251 ER - TY - CHAP A1 - Savitskaya, Irina S. A1 - Kistaubayeva, Aida S. A1 - Akimbekov, Nuraly S. A1 - Digel, Ilya A1 - Zhubanova, Azhar A. T1 - Performance of Bio-Composite Carbonized Materials in Probiotic Applications T2 - World Academy of Science, Engineering and Technology International Journal of Biotechnology and Bioengineering Y1 - 2013 VL - 7 IS - 7 SP - 685 EP - 689 ER - TY - CHAP A1 - Alhwarin, Faraj A1 - Schiffer, Stefan A1 - Ferrein, Alexander A1 - Scholl, Ingrid T1 - An Optimized Method for 3D Body Scanning Applications Based on KinectFusion T2 - Communications in Computer and Information Science Y1 - 2019 U6 - https://doi.org/10.1007/978-3-030-29196-9_6 SN - 1865-0929 N1 - 11th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2018; Funchal; Portugal; 19 January 2018 through 21 January 2018 VL - 1024 SP - 100 EP - 113 PB - Springer ER - TY - CHAP A1 - Sattler, Johannes, Christoph A1 - Alexopoulos, Spiros A1 - Caminos, Ricardo Alexander Chico A1 - Mitchell, John C. A1 - Ruiz, Victor C. A1 - Kalogirou, Soteris A1 - Ktistis, Panayiotis K. A1 - Teixeira Boura, Cristiano José A1 - Herrmann, Ulf T1 - Dynamic simulation model of a parabolic trough collector system with concrete thermal energy storage for process steam generation T2 - AIP Conference Proceedings Y1 - 2019 U6 - https://doi.org/10.1063/1.5117663 SN - 0094243X VL - 2126 SP - 150007-1 EP - 150007-8 ER - TY - CHAP A1 - May, Martin A1 - Breitbach, Gerd A1 - Alexopoulos, Spiros A1 - Latzke, Markus A1 - Bäumer, Klaus A1 - Uhlig, Ralf A1 - Söhn, Matthias A1 - Teixeira Boura, Cristiano José A1 - Herrmann, Ulf T1 - Experimental facility for investigations of wire mesh absorbers for pressurized gases T2 - AIP Conference Proceedings Y1 - 2019 U6 - https://doi.org/10.1063/1.5117547 SN - 0094243X VL - 2126 SP - 030035-1 EP - 030035-9 ER - TY - CHAP A1 - Mahdi, Zahra A1 - Rendón, Carlos A1 - Schwager, Christian A1 - Teixeira Boura, Cristiano José A1 - Herrmann, Ulf T1 - Novel concept for indirect solar-heated methane reforming T2 - AIP Conference Proceedings Y1 - 2019 U6 - https://doi.org/10.1063/1.5117694 SN - 0094-243X VL - 2126 SP - 180014-1 EP - 180014-7 PB - AIP Publishing CY - Melville, NY ER - TY - CHAP A1 - Breitbach, Gerd A1 - Alexopoulos, Spiros A1 - May, Martin A1 - Teixeira Boura, Cristiano José A1 - Herrmann, Ulf T1 - Analysis of volumetric solar radiation absorbers made of wire meshes T2 - AIP Conference Proceedings Y1 - 2019 U6 - https://doi.org/10.1063/1.5117521 SN - 0094243X VL - 2126 SP - 030009-1 EP - 030009-6 ER - TY - CHAP A1 - Hüning, Felix T1 - Complexity for heterogeneous classes: teaching embedded systems using an open project approach T2 - Varietas delectat: Complexity is the new normality - 47th Annual Conference, Budapest, Hungary16th - 20th September 2019. SEFI 47th Annual Conference Proceedings Y1 - 2019 SN - 978-2-87352-018-2 SP - 540 EP - 549 ER - TY - CHAP A1 - Matcha, Heike ED - Herneoja, Aulikki ED - Österlund, Toni ED - Markkanen, Piia T1 - From Designing Buildings from Systems to Designing Systems for Buildings T2 - Complexity & Simplicity - Proceedings of the 34th eCAADe Conference - Volume 1 N2 - We study the novel possibilities computer aided design and production open up for the design of building systems. Such systems today can, via individualized mass production, consist of a larger number and more complex parts than previously and therefore be assembled into more complex wholes. This opens up the possibility of designing specialized systems specifically for single buildings. The common order of starting with a building system and designing a building using this system can be reversed to designing a building first and then developing a system specifically for that building. We present and discuss research that incorporates students design projects into research work and fosters links between research and teaching. KW - Building Systems KW - Parametric Design KW - Parametric Modelling KW - Structuralist Architecture Y1 - 2016 U6 - https://doi.org/10.52842/conf.ecaade.2016.1.237 N1 - Proceedings of the 34th eCAADe Conference, University of Oulu, Oulu, Finland, 22-26 August 2016. SP - 237 EP - 240 PB - ECAADe CY - Oulu, Finland ER - TY - CHAP A1 - Otten, Christian A1 - Gerhards, Benjamin A1 - Schleser, Markus A1 - Schwarz, A. A1 - Gebhardt, Andreas T1 - Innovative Laserschweißtechnologie für additiv gefertigte Bauteile T2 - Große Schweißtechnische Tagung Y1 - 2019 SN - 978-3-96144-066-5 N1 - DVS CONGRESS 2019, Große Schweißtechnische Tagung, DVS-Studentenkongress. 16. bis 17. September 2019, Düsseldorf. DVS-Berichte, Band 355 SP - 150 EP - 157 PB - DVS-Media CY - Düsseldorf ER - TY - CHAP A1 - Wiesen, Andreas A1 - Schleser, Markus T1 - Entwicklung einer Qualitätssicherung für das Laserstrahlschweißen im Vakuum mittels Bildverarbeitung T2 - Große Schweißtechnische Tagung Y1 - 2019 SN - 978-3-96144-066-5 N1 - DVS CONGRESS 2019, Große Schweißtechnische Tagung, DVS-Studentenkongress. 16. bis 17. September 2019, Düsseldorf. DVS-Berichte, Band 355 SP - 1 EP - 6 PB - DVS-Media CY - Düsseldorf ER - TY - CHAP A1 - Krome, Cornelia A1 - Sander, Volker T1 - Time series analysis with apache spark and its applications to energy informatics T2 - Proceedings of the 7th DACH+ Conference on Energy Informatics N2 - In energy economy forecasts of different time series are rudimentary. In this study, a prediction for the German day-ahead spot market is created with Apache Spark and R. It is just an example for many different applications in virtual power plant environments. Other examples of use as intraday price processes, load processes of machines or electric vehicles, real time energy loads of photovoltaic systems and many more time series need to be analysed and predicted. This work gives a short introduction into the project where this study is settled. It describes the time series methods that are used in energy industry for forecasts shortly. As programming technique Apache Spark, which is a strong cluster computing technology, is utilised. Today, single time series can be predicted. The focus of this work is on developing a method to parallel forecasting, to process multiple time series simultaneously with R and Apache Spark. Y1 - 2018 U6 - https://doi.org/10.1186/s42162-018-0043-1 N1 - Energy Informatics 2018, Volume 1 Supplement 1 ER - TY - CHAP A1 - Götten, Falk A1 - Finger, Felix T1 - Conceptual Design of a Modular 150 kg Vertical Take-off and Landing Unmanned Aerial Vehicle T2 - Deutscher Luft- und Raumfahrtkongress - DLRK 2019. Darmstadt, Germany Y1 - 2019 SP - 1 EP - 10 ER - TY - CHAP A1 - Finger, Felix A1 - Götten, Falk A1 - Braun, Carsten A1 - Bil, Cees T1 - Mass, Primary Energy, and Cost - The Impact of Optimization Objectives on the Initial Sizing of Hybrid-Electric General Aviation Aircraft T2 - Deutscher Luft- und Raumfahrtkongress 2019, DLRK 2019. Darmstadt, Germany Y1 - 2019 U6 - https://doi.org/10.25967/490012 SP - 1 EP - 17 ER - TY - CHAP A1 - Götten, Falk A1 - Finger, Felix A1 - Havermann, Marc A1 - Braun, Carsten A1 - Marino, Matthew A1 - Bil, Cees T1 - A highly automated method for simulating airfoil characteristics at low Reynolds number using a RANS - transition approach T2 - Deutscher Luft- und Raumfahrtkongress - DLRK 2019. Darmstadt, Germany Y1 - 2019 U6 - https://doi.org/10.25967/490026 SP - 1 EP - 14 ER - TY - CHAP A1 - Blanke, Tobias A1 - Dring, Bernd A1 - Vontein, Marius A1 - Kuhnhenne, Markus T1 - Climate Change Mitigation Potentials of Vertical Building Integrated Photovoltaic T2 - 8th International Workshop on Integration of Solar Power into Power Systems : 16-17 October 2018, Stockholm, Sweden Y1 - 2018 SP - 1 EP - 7 ER - TY - CHAP A1 - Finger, Felix A1 - Braun, Carsten A1 - Bil, Cees T1 - Impact of Engine Failure Constraints on the Initial Sizing of Hybrid-Electric GA Aircraft T2 - AIAA Scitech 2019 Forum Y1 - 2019 U6 - https://doi.org/10.2514/6.2019-1812 N1 - AIAA Scitech Forum, 2019; San Diego; United States; 7 January 2019 through 11 January 2019 ER - TY - CHAP A1 - Cordes, Sven A1 - Gligorevic, Snjezana A1 - Blicharski, Peter T1 - Analysis of sine precision influence on DOA estimation using the MUSIC algorithm T2 - 2019 20th International Radar Symposium (IRS) Y1 - 2019 SN - 978-3-7369-9860-5 U6 - https://doi.org/10.23919/IRS.2019.8768162 SP - 1 EP - 10 ER - TY - CHAP A1 - Ulmer, Jessica A1 - Braun, Sebastian A1 - Lai, Chow Yin A1 - Cheng, Chi-Tsun A1 - Wollert, Jörg T1 - Generic integration of VR and AR in product lifecycles based on CAD models T2 - Proceedings of The 23rd World Multi-Conference on Systemics, Cybernetics and Informatics: WMSCI 2019 Y1 - 2019 ER -