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International Conference on Emerging Technologies and Factory Automation (ETFA)

作者： Ramez Awad Manuel Fechter Jessica van Heerden Department for Robot and Assistive Systems Fraunhofer Institute for Manufacturing Engineering and Automation IPA Stuttgart Germany

Human-Robot-Collaboration (HRC) is seen by many manufacturing enterprises as an opportunity to increase the automation level in their manufacturing without having to acquiesce in flexibility. Accordingly, many system integrators are confronted by an increasing demand for collaborative workplaces. However, system integrators are having difficulties to deliver such safe and efficient workplaces as is evident by the very low number of HRC cells in industry. This is due to the complexity of the safety standards and guidelines governing HRC, as well as the often negative impact of necessary safety measures on the key performance indicators (KPIs) of a collaborative workplace. In this paper, an iterative design method utilizing model-driven risk assessment and decision support is presented, that automatically identifies potential hazards in a workplace design and estimates the impact of necessary safety measures, with regard to the KPIs investment cost, operational cost, cycle time and flexibility.

关键词： Employment Hazards Robot sensing systems Collision avoidance Skin

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High power frequency comb at 1.7-2.2 µm wavelength

High power frequency comb at 1.7-2.2 µm wavelength

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Advanced Solid State Lasers, ASSL 2018

作者： Gaida, C. Heuermann, T. Gebhardt, M. Shestaev, E. Butler, T. Gerz, D. Lilienfein, N. Fischer, M. Holzwarth, R. Leitenstorfer, A. Pupeza, I. Limpert, J. Institute of Applied Physics Abbe Center of Photonics Friedrich-Schiller-Universität Jena Albert-Einstein-Str. 15 Jena07745 Germany Helmholtz-Institute Jena Fröbelstieg 3 Jena07743 Germany Max Planck Institute of Quantum Optics Hans-Kopfermann-Str. 1 Garching85748 Germany Ludwig Maximilians University Munich Am Coulombwall 1 Garching85748 Germany Menlo Systems GmbH Am Klopferspitz 19a Martinsried82152 Germany Department of Physics and Center for Applied Photonics University of Konstanz KonstanzD-78457 Germany Fraunhofer Institute for Applied Optics and Precision Engineering Albert-Einstein-Str. 7 Jena07745 Germany

ISBN: (纸本)9781943580484

关键词： Pulse repetition rate

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Results of the round robin calibration of reference solar cells within the PhotoClass project

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International Journal of Metrology and Quality engineering 2018年第1期9卷 1-6页

作者： Kröger, Ingo Friedrich, Dirk Winter, Stefan Salis, Elena Müllejans, Harald Pavanello, Diego Hohl-Ebinger, Jochen Bothe, Karsten Hinken, David Dittmann, Sebastian Friesen, Gabi Bliss, Martin Betts, Tom Gottschalg, Ralph Rimmelspacher, Lorentz Stang, Johannes Herrmann, Werner Dubard, Jimmy Physikalisch-Technische Bundesanstalt Bundesallee 100 Braunschweig38116 Germany Via Fermi 2749 Ispra21027 Italy Fraunhofer Institute for Solar Energy Systems Heidenhofstr. 2 Freiburg79110 Germany Am Ohrberg 1 Emmerthal31860 Germany Campus Trevano Canobbio6952 Switzerland Department of Electronic and Electrical Engineering Loughborough University Loughborough LeicestershireLE113TU United Kingdom TÜV Rheinland Energie Umwelt GmbH Cologne51101 Germany 29 ave Roger Hennequin Trappes78197 France Organisational Unit of the FhG-IMWS Otto-Eissfeldt-Strasse 12 Halle06120 Germany Hochschule Anhalt Bernburger Str. 57 Köthen06366 Germany

An intercomparison of terrestrial photovoltaic (PV) calibrations was performed among a number of European calibration and testing laboratories that participated in the European Metrology Research Program (EMRP) project "PhotoClass". The purpose of this intercomparison was to evaluate the comparability of calibration and testing services within the stated uncertainties of the individual laboratories. The calibration objects were two world photovoltaic scale (WPVS)-type reference solar cells, one made from crystalline silicon and one made from GaAs. The calibration value (CV) was the short-circuit current under standard test conditions (ISTC). In conclusion, it was found that the CVs are all consistent within the stated uncertainties. This result strengthens the reliance in the calibration chain and in the PV calibration infrastructure in Europe. © 2018 I. Kröger et al., published by EDP Sciences.

关键词： Calibration

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Influence of C content on electrochemical corrosion resistance of nanostructured hardmetals

Influence of C content on electrochemical corrosion resistan...

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International Powder Metallurgy Congress and Exhibition, Euro PM 2017

作者： Fabijanić, Tamara Aleksandrov Pötschke, Johannes Alar, Vesna Alar, Željko Faculty of Mechanical Engineering and Naval Architecture Department of Materials Laboratory for Testing Mechanical Properties Ivana Lucica 5 Zagreb10000 Croatia Fraunhofer Institute for Ceramic Technologies and Systems IKTS Dresden Winterbergstraße 28 Dresden01277 Germany

The influence of C content on the electrochemical corrosion behavior of nanostructured WC-Co hardmetals was investigated. WC powder with an average grain size dBET 95 nm and with an addition of VC and Cr3C2 as a grain growth inhibitors was used as starting powders. The mixtures with 5 wt. % and 10 wt. %Co and 15 wt. %Co were consolidated by sinter-HIP process. The samples were researched by direct current and alternative current techniques in the solution of 3.5 % NaCl at room temperature. Corrosion parameters like corrosion potential (Ecorr), corrosion current density (jcorr), polarization resistance (Rp) were determined by electrochemical techniques. On the basis of conducted research it was found that C content added to the starting mixture significantly influence the electrochemical corrosion resistance;better electrochemical corrosion resistance was observed for samples with lower content of C added and lower magnetic saturation. © 2017 European Powder Metallurgy Association (EPMA).

关键词： Corrosion resistance

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CEP stability of high-power few-cycle fiber lasers

CEP stability of high-power few-cycle fiber lasers

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Ultrafast Optics 2017

作者： Shestaev, E. Hädrich, S. Hoff, D. Just, F. Kienel, M. Eidam, T. Becker, N.C. Eilenberger, F. Klenke, A. Müller, M. Gottschall, T. Drozdy, A. Jójárt, P. Szabó, A. Várallyay, Z. Osvay, K. Paulus, G.G. Tünnermann, A. Limpert, J. Friedrich-Schiller-Universität Jena Abbe Center of Photonics Institute of Applied Physics Albert-Einstein-Straße 15 Jena07745 Germany Active Fiber Systems GmbH Wildenbruchstr. 15 Jena07745 Germany Friedrich-Schiller-Universität Jena Institut für Optik und Quantenelektronik Max-Wien-Platz 1 Jena07743 Germany Helmholtz-Institute Jena Fröbelstieg 3 Jena07743 Germany Fraunhofer Institute for Applied Optics and Precision Engineering IOF Albert-Einstein-Straße 7 Jena07745 Germany ELI-ALPS ELI-HU Non-Profit Ltd. Dugonics tér 13 SzegedH-6720 Hungary

ISBN: (纸本)9781510617162

关键词： Phase noise

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High average power few-cycle laser for ELI-ALPS

High average power few-cycle laser for ELI-ALPS

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Ultrafast Optics 2017

作者： Hädrich, S. Eidam, T. Just, F. Shestaev, E. Hoff, D. Kienel, M. Becker, N.C. Eilenberger, F. Klenke, A. Müller, M. Gottschall, T. Drozdy, A. Jojart, P. Szabó, A. Várallyay, Z. Osvay, K. Paulus, G.G. Tünnermann, A. Limpert, J. Active Fiber Systems GmbH Wildenbruchstr. 15 Jena07745 Germany Friedrich-Schiller-Universität Jena Abbe Center of Photonics Institute of Applied Physics Albert-Einstein-Straße 15 Jena07745 Germany Helmholtz-Institute Jena Fröbelstieg 3 Jena07743 Germany Friedrich-Schiller-Universität Jena Institut für Optik und Quantenelektronik Max-Wien-Platz 1 Jena07743 Germany Fraunhofer Institute for Applied Optics and Precision Engineering IOF Albert-Einstein-Straße 7 Jena07745 Germany ELI-ALPS ELI-HU Non-Profit Ltd. Dugonics tér 13 SzegedH-6720 Hungary

ISBN: (纸本)9781510617162

关键词： III-V semiconductors

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Investigation of GaN-HEMTs in Reverse Conduction

Investigation of GaN-HEMTs in Reverse Conduction

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PCIM Europe 2017;International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management

作者： Richard Reiner Patrick Waltereit Beatrix Weiss Ruediger Quay Oliver Ambacher Fraunhofer-Institute for Applied Solid State Physics (IAF) Department of Sustainable Systems Engineering (INATECH) University of Freiburg

ISBN: (纸本)9781538638620

This work investigates the reverse conduction characteristics of 600 V-class GaN-HEMTs. The behavior of a conventional HEMT is analyzed and compared to the reverse conduction of an improved HEMT structure with integrated freewheeling diode. The characteristics of both structures are measured on fabricated test samples. Furthermore, the electrical behavior is analyzed with regards to the intrinsic layouts.

关键词： Speech Auditory system Production Robustness Emotion recognition Acoustics

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Enhancing the energy-efficient production of tempered glass by using simulation-based optimisation

Enhancing the energy-efficient production of tempered glass ...

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International Conference on Emerging Technologies and Factory Automation (ETFA)

作者： Stephan Seidel Matthias Franke Frank Baumann Heike Wilson Ulrike Gromnitza Fraunhofer Institute for Integrated Circuits Engineering of Adaptive Systems Dresden Germany DUALIS GmbH IT Solution Dresden Germany

In many industrial manufacturing processes energy use is one of the most important cost factors. Especially in energy-intensive industries like steel production or glass processing minimizing energy use is a key measure to save resources and reduce manufacturing costs. The research project OptPlanEnergie concentrates on the production of tempered glass. In this project we apply simulation and optimization techniques to identify and reduce energetic losses that occur during the fabrication process. The aim of the project is to supply a toolchain for creating high-performance simulation models of crucial production steps and integrating these models in scheduling frameworks to facilitate the optimization of loading sequences and capacity allocation to reduce energy consumption. In OptPlanEnergie we prototypically study the production of tempered glass, but our approach allows a simple adaptation to a wide range of industries.

关键词： Ovens Production Glass Optimization Energy consumption Data analysis Data models

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Control and automation functions at the TSO and DSO interface - impact on network planning 24

Control and automation functions at the TSO and DSO interfac...

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24th International Conference and Exhibition on Electricity Distribution, CIRED 2017

作者： Pilo, Fabrizio Mauri, Giuseppe Bak-Jensen, Birgitte Kämpf, Erika Taylor, Jason Silvestro, Federico Department of Electrical and Electronic Engineering University of Cagliari Cagliari Italy Ricerca sul Sistema Energetico - RSE Milan Italy Aalbor University Aalborg Denmark Fraunhofer Institute for Wind Energy and Energy Systems Bremerhaven Germany Electric Power Research Institute EPRI KnoxvilleTN United States Department of Naval Electrical Electronic and Telecommunication Engineering University of Genova Genova Italy

This paper presents the activities of the CIGRE/CIRED C6.25/B5 joint working group (JWG), focusing on the control and automation systems for the future electric networks. This JWG is mainly focused to evaluate the level of automation and control necessary to better manage distribution networks with large penetrations of distributed energy resources, as seen from both the TSO and DSO perspectives. © 2017 The Institution of engineering and Technology. All rights reserved.

关键词： Automation

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Modular AUV system for sea water quality monitoring and management

arXiv

引用

arXiv 2017年

作者： Eichhorn, Mike Taubert, Ralf Ament, Christoph Jacobi, Marco Pfuetzenreuter, Torsten Institute for Automation and Systems Engineering Ilmenau University of Technology Ilmenau98684 Germany Fraunhofer IOSB Ilmenau98693 Germany

The sustained and cost-effective monitoring of the water quality within European coastal areas is of growing importance in view of the upcoming European marine and maritime directives, i.e. the increased industrial use of the marine environment. Such monitoring needs mechanisms/systems to detect the water quality in a large sea area at different depths in real time. This paper presents a system for the automated detection and analysis of water quality parameters using an autonomous underwater vehicle. The analysis of discharge of nitrate into Norwegian fjords near aqua farms is one of the main application fields of this AUV system. As carrier platform the AUV "CWolf" from the fraunhofer IOSB-AST will be used, which is perfectly suited through its modular payload concept. The mission task and the integration of the payload unit which includes the sensor module, the scientific and measurement computer in the AUV carrier platform will be described. Few practice oriented information about the software and interface concept, the function of the several software modules and the test platform with the several test levels to test every module will be discussed. Copyright © 2017, The Authors. All rights reserved.

关键词： Water quality

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