TY - CHAP A1 - Fiedler, Jannik A1 - Rilling, Stefan A1 - Bogen, Manfred A1 - Herder, Jens ED - Braz, José T1 - Multimodal interaction techniques in scientific data visualization: An analytical survey T2 - In Proceedings of the 10th International Conference on Computer Graphics Theory and Applications (GRAPP-2015) N2 - The interpretation process of complex data sets makes the integration of effective interaction techniques crucial. Recent work in the field of human-computer interaction has shown that there is strong evidence that multimodal user interaction, i.e. the integration of various input modalities and interaction techniques into one comprehensive user interface, can improve human performance when interacting with complex data sets. However, it is still unclear which factors make these user interfaces superior to unimodal user interfaces. The contribution of this work is an analytical comparison of a multimodal and a unimodal user interface for a scientific visualization application. We show that multimodal user interaction with simultaneously integrated speech and gesture input improves user performance regarding efficiency and ease of use. KW - Interaction KW - Mulitmodal KW - Interaction Techniques KW - 3-D Interaction KW - Immersive Environments KW - VSVR Y1 - 2015 SN - 978-989-758-087-1 U6 - https://doi.org/10.5220/0005296404310437 SP - 431 EP - 437 PB - SCITEPRESS CY - s. l. ER - TY - CHAP A1 - Dubberke, Frithjof A1 - Priebe, Klaus-Peter A1 - Vrabec, Jadran A1 - Neef, Matthias A1 - Rödder, Maximilian T1 - Thermodynamic simulation and experimental validation of a cascaded two-stage organic Rankine cycle T2 - ASME ORC 2015, Brussels KW - simulation Y1 - 2015 CY - Brussels ER - TY - CHAP A1 - Rödder, Maximilian A1 - Neef, Matthias A1 - Laux, Christoph A1 - Priebe, Klaus-P. T1 - Systematic Fluid Selection for Organic Rankine Cycles (ORC) and Performance Analysis for a Combined High and Low Temperature Cycle T2 - Volume 3: Coal, Biomass and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration N2 - The organic Rankine cycle (ORC) is an established thermodynamic process that converts waste heat to electric energy. Due to the wide range of organic working fluids available the fluid selection adds an additional degree of freedom to the early design phase of an ORC process. Despite thermodynamic aspects such as the temperature level of the heat source, other technical, economic and safety aspects have to be considered. For the fluid selection process in this paper, 22 criteria were identified in six main categories while distinguishing between elimination and tolerance criteria. For an ORC design, the suggested method follows a practical engineering approach and can be used as a structured way to limit the number of interesting working fluids before starting a detailed performance analysis of the most promising candidates. For the first time the selection process is applied to a two-stage reference cycle which uses the waste heat of a large reciprocating engine for cogeneration power plants. It consists of a high temperature and a low temperature cycle in which the condensation heat of the high temperature (HT) cycle provides the heat input of the low temperature (LT) cycle. After the fluid selection process the detailed thermodynamic cycle design is carried out with a thermodynamic design tool that also includes a database for organic working fluids. The investigated ORC cycle shows a net thermal efficiency of about 17,4% in the high temperature cycle with Toluene as the working fluid and 6,2% in low temperature cycle with iso-Butane as the working fluid. The electric efficiency of the cogeneration plant increases from 40,4% to 46,97% with the both stages of the two-stage ORC in operation. Y1 - 2015 UR - https://asmedigitalcollection.asme.org/GT/proceedings/GT2015/56673/Montreal, Quebec, Canada/236733 SN - 978-0-7918-5667-3 U6 - https://doi.org/10.1115/GT2015-42432 PB - American Society of Mechanical Engineers ER - TY - CHAP A1 - Laux, Christoph A1 - Goebel, Johannes A1 - Neef, Matthias A1 - Gotter, Andreas T1 - Investigation in the Technical and Economic Feasibility of a Low-Pressure Steam Cycle for the Waste Heat Utilization of a Cogeneration Plant T2 - Proceedings of the ASME Turbo Expo: Turbine Technical Conference and Exposition - 2015 : presented at the ASME 2015 Turbo Expo: Turbine Technical Conference and Exposition, June 15 - 19, 2015, Montreal, Quebec, Canada / sponsored by the International Gas Turbine Institute N2 - This paper deals with the investigation in the technical and economic feasibility of a low-pressure steam cycle for the waste heat utilization of a combined heat and power (CHP) plant. The proposed steam cycle uses a pressure level below atmospheric pressure which allows to use the heat from the motor’s coolant for evaporation. The cycle is designed to increase the maximum electrical efficiency of a gas fired reciprocating engine and to increase operational flexibility for varying heat demand. Since organic Rankine cycle (ORC) plants are already being successfully used for waste heat recovery, advantages of the low-pressure steam Rankine cycle (SRC) over an ORC are highlighted. Many ORC fluids are toxic or flammable and thus have an increased risk potential compared to water. An additional advantage of water compared to ORC fluids is the possibility of superheating above 500 °C. The technical feasibility of the proposed cycle is studied by the detailed design of the individual system components such as turbine, heat exchangers and auxiliary parts. This includes the detailed thermodynamic design of the full cycle for the calculation of plant efficiencies. As a basis for future experimental investigations, a cogeneration plant with an electrical output of 50 kWel was selected as a heat source for the steam cycle. The design geometries of the turbine and the heat exchanger are presented along with efficiency and cost predictions. A subsonic radial turbine with a rotational speed of 155,000 rpm was selected. The maximum turbine output is about 7.5 kW. The use of a flash evaporator is investigated to reduce the size and the costs for the evaporator. The suggested steam cycle helps to increase the electrical efficiency of the CHP plant by 4.5% points from an original 36.5% to 41.0%. The steam cycle itself has an electrical efficiency of approximately 9%. Additionally, the condensation temperature in this steam cycle is high enough to be extracted as useful heat output to generate domestic water with a temperature of 50°C. Y1 - 2015 SN - 978-0-7918-5667-3 VL - 3: Coal, biomass and alternative fuels - cycle innovations - electric power - industrial and cogeneration PB - International Gas Turbine Institute (ASME) CY - New York ER - TY - CHAP A1 - Voigt, Christian A1 - Dobner, Susanne A1 - Neuschmid, Julia T1 - Data-driven and value sensitive urban decision making T2 - eChallenges e-2015 Conference, 25.11. - 27.11.2015, Vilnius Y1 - 2015 SN - 978-1-9058-2453-3 U6 - https://doi.org/10.1109/echallenges.2015.7441077 SP - 1 EP - 9 PB - IEEE ER - TY - CHAP A1 - Guo, Yujie A1 - Ruess, Martin T1 - Isogeometric Weak Coupling of Shell Structures T2 - 56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference 2015, Kissimmee, Florida, USA, 5 - 9 January 2015 Y1 - 2015 UR - https://arc.aiaa.org/doi/book/10.2514/MSDM15 SN - 978-1-62410-342-1 U6 - https://doi.org/10.2514/6.2015-0965 SP - 1 EP - 14 PB - Curran CY - Red Hook ER - TY - CHAP A1 - Steffens, Jochen A1 - Steele, Daniel A1 - Guastavino, Catherine T1 - New Insights into Soundscape Evaluations Using the Experience Sampling Method T2 - Proceedings of Euronoise 2015, 31 May - 3 June, Maastricht Y1 - 2015 UR - https://www.conforg.fr/euronoise2015/proceedings/data/articles/000111.pdf SP - 1495 EP - 1500 CY - Maastricht ER - TY - CHAP A1 - Steffens, Jochen A1 - Steele, Daniel A1 - Guastavino, Catherine ED - Ginsborg, Jane ED - Lamont, Alexandra T1 - How does music affect soundscape evaluation? T2 - Proceedings of the Ninth Triennial Conference of the European Society for the Cognitive Sciences of Music (ESCOM) Y1 - 2015 CY - Manchester ER - TY - CHAP A1 - Steffens, Jochen A1 - Steele, Daniel A1 - Guastavino, Catherine ED - Becker, Stefan T1 - Die Experience Sampling Methode - Ein Werkzeug der Zukunft für die Soundscape-Forschung? T2 - Fortschritte der Akustik Y1 - 2015 PB - Deutsche Gesellschaft für Akustik e.V. CY - Berlin ER - TY - CHAP A1 - Skoda, Sabrina A1 - Steffens, Jochen A1 - Becker-Schweitzer, Jörg ED - Becker, Stefan T1 - Zusammenhang zwischen Bewertungen der Angenehmheit von einzelnen und miteinander kombinierten Geräuschen T2 - Fortschritte der Akustik Y1 - 2015 SN - 978-3-939296-08-9 PB - Deutsche Gesellschaft für Akustik e.V. CY - Berlin ER -