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14th Conference of International Building Performance Simulation Association, BS 2015

作者： Giannakis, G.I. Lilis, G.N. Garcia, M.A. Kontes, G.D. Valmaseda, C. Rovas, D.V. Department of Production Engineering and Management Technical University of Crete Chania Greece Fundacion CARTIF Department of Energy Valladolid Spain Group of Energy Systems Institute for Building Physics Fraunhofer Germany

Building Energy Performance (BEP) simulation model require significant effort for set up, limiting the potential utilization of modelling both in the design and operational phases. A methodology for semiautomated BEP simulation model creation could make this process much more expedient and as such lower to threshold for the use of such models. Building Information Models (BIM) are an information-rich repository that could be used to streamline and expedite the collection of such information. Concerning the building geometry, the Industry Foundation Classes (IFC) can provide static building information that include geometric configuration and material properties, but in a form that might not be directly usable for the generation of thermal simulation models due to the absence of 2nd-level boundary information. In this paper, a three-step methodology for (semi-) automated generation of thermal simulation models is presented, including: A query on the building data model requesting geometry-related information;a processing of the acquired data by a 2nd-level boundary identification algorithm, the Common Boundary Intersection Projection (CBIP) algorithm;and a transformation stage that converts the geometry information of IFC, along with the data obtained from the CBIP algorithm, to an EnergyPlus and/or TRNSYS input file, with the latter being the main topic of this paper.

关键词： Geometry

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200 W average power energetic few-cycle fiber laser

200 W average power energetic few-cycle fiber laser

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High Intensity Lasers and High Field Phenomena, HILAS 2016

作者： Hädrich, S. Kienel, M. Müller, M. Klenke, A. Rothhardt, J. Klas, R. Gottschall, T. Eidam, T. Drozdy, A. Jojart, P. Várallyay, Z. Cormier, E. Osvay, K. Tünnermann, A. Limpert, J. Institute of Applied Physics Abbe Center of Photonics Friedrich-Schiller-Universität Jena Albert-Einstein-Straße 15 Jena07745 Germany Helmholtz Institute Jena Fröbelstieg 3 Jena07743 Germany Active Fiber Systems GmbH Wildenbruchstr. 15 Jena07745 Germany ELI-ALPS ELI-HU Non-Profit Ltd Dugonics tér 13 SzegedH-6720 Hungary Université Bordeaux-CNRS-CEA-UMR 5107 CELIA 351 Cours de la Libération TalenceF-33405 France Fraunhofer Institute for Applied Optics and Precision Engineering Albert-Einstein-Straße 7 Jena07745 Germany

ISBN: (纸本)9781943580095

A state-of-the-art fiber-chirped-pulse-amplifier system based on coherent combination of 8 amplifier channels delivers 680 W of average power. Two-stage nonlinear compression of this high average power pulses in gas-filled capillaries yields 400 W, 30fs, >300μJ pulses and 220W, sub-7fs, 170 μJ pulses, respectively. This is the highest average power ever obtained for ultrashort and few-cycle pulses using a power-scalable technique. This laser source will open completely new opportunities in ultrafast strong field physics. © OSA 2016.

关键词： Fiber lasers

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Few-cycle laser with 216 W average power and 6.3 fs pulses

Few-cycle laser with 216 W average power and 6.3 fs pulses

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Advanced Solid State Lasers, ASSL 2016

作者： Kienel, M. Hädrich, S. Müller, M. Klenke, A. Rothhardt, J. Klas, R. Gottschall, T. Eidam, T. Drozdy, A. Jojart, P. Várallyay, Z. Cormier, E. Osvay, K. Tünnermann, A. Limpert, J. Institute of Applied Physics Abbe Center of Photonics Friedrich-Schiller-Universität Jena Albert-Einstein-Straße 15 Jena07745 Germany Helmholtz Institute Jena Fröbelstieg 3 Jena07743 Germany Active Fiber Systems GmbH Wildenbruchstr. 15 Jena07745 Germany ELI-ALPS ELI-HU Non-Profit Ltd. Dugonics tér 13 SzegedH-6720 Hungary CELIA Université Bordeaux-CNRS-CEA-UMR 5107 351 Cours de la Libération TalenceF-33405 France Fraunhofer Institute for Applied Optics and Precision Engineering Albert-Einstein-Straße 7 Jena07745 Germany

ISBN: (纸本)9781943580200

Nonlinear compression (NC) of fiber lasers has emerged as a powerful scaling concept to achieve high average power few-cycle lasers. Here a 660 W, 0.5 mJ, 260 fs system is used for two-stage NC in gas-filled capillaries. The first stage compresses the pulses to 30 fs while the average power is as high as 408 W, which corresponds to 320 μJ of pulse energy. Further reduction of the pulse duration is achieved in a second stage that allows for the generation of 6.3 fs (sub-2 cycle) pulses at a pulse energy of 170 μJ and an average power of 216 W, which is the highest value achieved to date. © OSA 2016.

关键词： Fiber lasers

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Self-optimizing Production systems

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Procedia CIRP 2016年 41卷 417-422页

作者： Eike Permin Felix Bertelsmeier Matthias Blum Jennifer Bützler Sebastian Haag Sinem Kuz Denis Özdemir Sebastian Stemmler Ulrich Thombansen Robert Schmitt Christian Brecher Christopher Schlick Dirk Abel Reinhart Poprawe Peter Loosen Wolfgang Schulz Günther Schuh Fraunhofer Institute for Production Technology (IPT) Steinbachstraße 17 52064 Aachen Germany Laboratory for Machine Tools and Production Engineering (WZL) of RWTH Aachen University Steinbachstraße 53 52074 Aachen Institute for Industrial Management (FIR) at RWTH Aachen University Campus-Boulevard 55 52074 Aachen Institute of Industrial Engineering and Ergonomics (IAW) of RWTH Aachen Bergdriesch 27 52062 Aachen Institute of Automatic Control (IRT) Steinbachstraße 54 52074 Aachen Fraunhofer Institute for Laser Technology (ILT) Steinbachstraße 15 52074 Aachen Germany Chair for Laser Technology (LLT) at RWTH Aachen University Steinbachstrasse 15 52074 Aachen Germany Chair for Technology of Optical Systems (TOS) at RWTH Aachen University Steinbachstrasse 15 52074 Aachen Germany Department Nonlinear Dynamics of Laser Processing (NLD) at RWTH Aachen University Steinbachstrasse 15 52074 Aachen Germany

Today's manufacturers are facing numerous challenges such as highly entangled and interconnected supply chains, shortening product lifecycles and growing product complexity. They thus feel the need to adjust and adapt faster on all levels of value creation. Self-optimization as a basic principle appears a promising approach to handle complexity and unforeseen disturbances within supply chains, machines and processes. Therefore it will improve the resilience and competitiveness of manufacturing companies. This paper gives an introduction to the concept of self-optimizing production systems. After a short historical review, the different levels of value creation from supply chain design and management to manufacturing and assembly are analyzed considering their specific demands and needs for self-optimization. Examples from each of these levels are used to illustrate the concept of self-optimization as well as to outline its potential for flexibility and productivity. This paper closes with an outlook on the current scientific work and promising new fields of action.

关键词： Artificial intelligence Optimization Control Management

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Performance and failure analysis of concentrator solar cells after intensive stressing with thermal, electrical, and combined load

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AIP Conference Proceedings 2017年第1期1881卷

作者： Fabian Eltermann Lisa Ziegler Maike Wiesenfarth Jürgen Wilde Andreas W. Bett Fraunhofer Institute for Solar Energy Systems ISE Heidenhofstr. 2 79110 Freiburg Germany University of Freiburg Department of Microsystems Engineering – IMTEK Georges-Köhler-Allee 103 79110 Freiburg Germany Universität Kassel Institut für Produktionstechnik und Logistik Kurt-Wolters-Straße 3 34125 Kassel Germany

In this work, we investigated the impact of intensive heat loads on concentrator solar cells assemblies. As test samples, we employed lattice-matched and lattice-mismatched triple-junction solar cells made of GaInP/GaInAs/Ge. The thermal loads were induced by different manners. We used drying cabinets, external power supplies, and a combination of both to achieve maximum test temperatures of 180 °C. For the performance analysis, we utilized flash light solar simulators and an electroluminescence (EL) imaging tool. Our experiments revealed a significant difference depending on the applied manner of heating. The highest impact was observed for the pure heat treatment in drying cabinets. This was particularly visible in the spatial EL images, but also in the IV curves. In contrast, running the concentrator solar cells as forward-biased diodes using an external current supply of 2000 mA, which corresponds to 2000 suns, did not lead to any significant changes in EL and IV curves. However, deformation of the front metallization was observed. In conclusion, pure heat treatment can be considered as a cost-efficient alternative to pinpoint weak points in solar cell receivers.

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Unimodular completion and direct flat representation in the context of differential flatness

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PAMM 2016年第1期16卷

作者： Klemens Fritzsche Carsten Knoll Matthias Franke Klaus Röbenack Institute of Control Theory Dresden University of Technology Fraunhofer Institute for Integrated Circuits IIS Division Engineering of Adaptive Systems EAS Dresden

Despite its significance in nonlinear controller design, the verification of the property of differential flatness and the identification of so-called flat outputs is a continuing research topic. However, the difficulty of both verification and identification heavily depends on the representation of the system. This contribution shows that flatness may be a far less complicated matter, depending on the choice of coordinates. (© 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim)

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International Society for Therapeutic Ultrasound Conference 2016

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Journal of Therapeutic Ultrasound 2017年第1期5卷 1-114页

作者： Brian Fowlkes Pejman Ghanouni Narendra Sanghvi Constantin Coussios Paul C. Lyon Michael Gray Christophoros Mannaris Marie de Saint Victor Eleanor Stride Robin Cleveland Robert Carlisle Feng Wu Mark Middleton Fergus Gleeson Jean-Franҫois Aubry Kim Butts Pauly Chrit Moonen Jacob Vortman Shirley Sharabi Dianne Daniels David Last David Guez Yoav Levy Alexander Volovick Javier Grinfeld Itay Rachmilevich Talia Amar Zion Zibly Yael Mardor Sagi Harnof Michael Plaksin Yoni Weissler Shy Shoham Eitan Kimmel Omer Naor Nairouz Farah Dong-Guk Paeng Zhiyuan Xu John Snell Anders H. Quigg Matthew Eames Changzhu Jin Ashli C. Everstine Jason P. Sheehan Beatriz S. Lopes Neal Kassell Thomas Looi Vera Khokhlova Charles Mougenot Kullervo Hynynen James Drake Michael Slayton Richard C. Amodei Keegan Compton Ashley McNelly Daniel Latt John Kearney David Melodelima Aurelien Dupre Yao Chen David Perol Jeremy Vincenot Jean-Yves Chapelon Michel Rivoire Wei Guo Guoxin Ren Guofeng Shen Michael Neidrauer Leonid Zubkov Michael S. Weingarten David J. Margolis Peter A. Lewin Nathan McDannold Jonathan Sutton Natalia Vykhodtseva Margaret Livingstone Thiele Kobus Yong-Zhi Zhang Michael Schwartz Yuexi Huang Nir Lipsman Jennifer Jain Martin Chapman Tejas Sankar Andres Lozano Robert Yeung Christakis Damianou Nikolaos Papadopoulos Omer Brokman Eyal Zadicario Ori Brenner David Castel Shih-Ying Wu Julien Grondin Wenlan Zheng Marc Heidmann Maria Eleni Karakatsani Carlos J. Sierra Sánchez Vincent Ferrera Elisa E. Konofagou Marinos Yiannakou HongSeok Cho Hwayoun Lee Mun Han Jong-Ryul Choi Taekwan Lee Sanghyun Ahn Yongmin Chang Juyoung Park Nicholas Ellens Ari Partanen Keyvan Farahani Raag Airan Alexandre Carpentier Michael Canney Alexandre Vignot Cyril Lafon Jean-yves Delattre Ahmed Idbaih Henrik Odéen Bradley Bolster Eun Kee Jeong Dennis L. Parker Pooja Gaur Xue Feng Samuel Fielden Craig Meyer Beat Werner William Grissom Michael Marx Hans Weber Valentina Taviani Brian Hargreaves Jun Tanaka Kentaro Kikuchi Ayumu Ishijima Takashi Azuma Kosuke Minamihata Satoshi Basic Radiological Sciences Division Department of Radiology University of Michigan Ann Arbor USA Stanford School of Medicine Stanford USA SonaCare Medical Indianapolis USA Institute of Biomedical Engineering University of Oxford Oxford UK HIFU Unit Churchill Hospital Oxford UK Department of Oncology University of Oxford Oxford UK Department of Radiology Churchill Hospital Oxford UK Institut Langevin Paris France Center for Imaging Sciences Imaging Division University Medical Center Utrecht The Netherlands InSighTec Haifa Israel Sheba Medical Center Ramat-Gan Israel Tel-Aviv University Tel-Aviv Israel Faculty of Biomedical Engineering & Russell Berrie Nanotechnology Institute Technion – Israel Institute of Technology Haifa Israel ELSC Center for Brain Sciences Hebrew University Jerusalem Israel Biomedical Engineering Technion- Israel Institute of Technology Haifa Israel Faculty of Life Sciences Bar Ilan University Ramat Gan Israel Focused Ultrasound Foundation Charlottesville USA Ocean System Engineering Jeju National University Jeju Republic of Korea Neurosurgery University of Virginia Charlottesville USA Biology University of Virginia Charlottesville USA Pathology University of Virginia Charlottesville USA Hospital for Sick Children Toronto Canada University of Toronto Toronto Canada University of Washington Seattle USA Philips Healthcare Markham Canada Sunnybrook Research Institute Toronto Canada Guided Therapy Systems LLC Mesa USA School of Medicine University of Arizona Tucson USA The CORE Institute Phoenix USA LabTAU - U1032 INSERM Lyon France Centre Leon Berard Lyon France Department of Oral Maxillofacial and Head Neck Oncology Shanghai 9th People’s Hospital Shanghai China The School of Biomedical Engineering Science and Health Systems Drexel University Philadelphia USA Department of Surgery College of Medicine Drexel University Philadelphia USA Biostatistics and Epidemiology University of Pennsylvania Philadelphi

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On the Recursive Nature of End-to-End Delay Bound for Heterogeneous Wireless Networks

On the Recursive Nature of End-to-End Delay Bound for Hetero...

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IEEE International Conference on Communications

作者： Neda Petreska Hussein Al-Zubaidy Rudi Knorr James Gross Fraunhofer Institute for Embedded Systems and Communication Technologies ESK School of Electrical Engineering KTH Royal Institute of Technology

ISBN: (纸本)9781467364300

Multi-hop wireless networks are increasingly becoming more relevant to current and emerging wireless network deployment. The need for understanding the performance of such networks in order to be able to provide quantifiable end-to-end quality of service is apparent. Until recently, only asymptotic results that describe the scaling of the delay in the size of the network under numerous conformity conditions were available. Recently, a new methodology for wireless networks performance analysis based on stochastic network calculus was presented [1]. This methodology enables the computation of end-to-end probabilistic delay bound of multi-hop wireless networks in terms of the underlying fading channel parameters. However, the approach assumes identically distributed channel gain which applies to a very specific class of networks. In this work, we seek to develop an end-to-end probabilistic delay bound for multi-hop wireless networks with non-identically distributed channel gains. We show that the delay bound for such networks can be computed recursively. We validate the resulting bound by means of simulation and discuss various numerical examples.

关键词： Delays Signal to noise ratio Wireless networks Spread spectrum communication Transforms Stochastic processes

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Fuel Cells: Cerium Oxide Decorated Polymer Nanofibers as Effective Membrane Reinforcement for Durable, High‐Performance Fuel Cells (Adv. Energy Mater. 6/2017)

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Advanced Energy Materials 2017年第6期7卷

作者： Matthias Breitwieser Carolin Klose Armin Hartmann Andreas Büchler Matthias Klingele Severin Vierrath Roland Zengerle Simon Thiele Laboratory for MEMS Applications IMTEK Department of Microsystems Engineering University of Freiburg Georges‐Koehler‐Allee 103 79110 Freiburg Germany Hahn‐Schickard Wilhelm‐Schickard‐Straße 10 78052 Villingen‐Schwenningen Germany Fraunhofer Institute for Solar Energy Systems Heidenhofstr. 2 79110 Freiburg Germany FIT University of Freiburg Georges‐Koehler‐Allee 105 79110 Freiburg Germany

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AR-Enhanced Human-Robot-Interaction - Methodologies, Algorithms, Tools

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Procedia CIRP 2016年 44卷 193-198页

作者： Nils Andersson Angelos Argyrou Frank Nägele Fernando Ubis Urko Esnaola Campos Maite Ortiz de Zarate Robert Wilterdink EON Development AB Datavägen 10C S-436 32 Askim Gotheburg Sweden Laboratory for Manufacturing Systems and Automation Department of Mechanical Engineering and Aeronautic University of Patras 26500 Patras Greece Fraunhofer Institute for Manufacturing Engineering and Automation IPA Nobelstasse 12 70569 Stuttgart Germany Visual Components Vänrikinkuja 2 FI-02600 Espoo Finland TECNALIA Research & Innovation Parque Tecnológico de Alava c/ Leonardo Da Vinci 1E-01510 Miñano (Alava) Spain Universal Robots Energivej 25 5260 Odense S Denmark

By using Augmented Reality in Human-Robot-Interaction scenarios we propose it is possible to improve training, programming, maintenance and process monitoring. AR Enhanced Human Robot Interaction means it is possible to conduct activities not only in a training facility with physical robot(s) but also in a complete virtual environment. By using virtual environments only a computer and possibly Head Mounting Display is required. This will reduce the bottlenecks for with overbooked physical training facilities. Physical environment for the activities with robot(s) will still be required, however using also virtual environments will increase flexibility and human operator can focus on training more complicated tasks.

关键词： Augmented Reality Virtual Reality Human-Robot-Interaction Head-Mounted-Display

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