Jahr
Year
Titel/Autor:in
Title/Author
Publikationstyp
Publication Type
2024 Multi-Scale Simulation of a Novel Integrated Reactor for Hydrogen Production by Ammonia Decomposition
Blauth, Sebastian; Damay, Julie; Osterroth, Sebastian; Leithäuser, Christian; Hofmann, Christian; Kolb, Gunther; Wichert, Martin; Steiner, Konrad; Bortz, Michael
Zeitschriftenaufsatz
Journal Article
2023 Experimental Evaluation of a Coated Foam Catalytic Reactor for the Direct CO2-to-Methanol Synthesis Process
Musavuli, Kyatsinge Cedric; Engelbrecht, Nicolaas; Everson, Raymond Cecil; Modisha, Phillimon; Kolb, Gunther; Zapf, Ralf; Hofmann, Christian; Bessarabov, Dmitri
Zeitschriftenaufsatz
Journal Article
2023 Inductive Sintering of Silver Micro Particles for Bonding of Microelectronic Components
Rochala, Patrick; Hofmann, Christian; Kroll, Martin; Panhale, Sushant; Javed, Rezan; Hiller, Karla
Zeitschriftenaufsatz
Journal Article
2023 Inductive Heating Based on VHF-ISM Radio Band Frequencies as Technology Platform for Efficient Heating of Metallic Micro-Scaled Bonding Layers in MEMS Packaging
Hofmann, Christian; Kroll, Martin; Panhale, Sushant; Wiemer, Maik; Kunke, Andreas; Hiller, Karla; Kuhn, Harald
Zeitschriftenaufsatz
Journal Article
2022 High-throughput technology in electrochemistry
Müller, Andreas; Schneider, F.; Huber, Florian; Dejmek, M.; Wasserschaff, G.; Püttmann, O.; Fechtmann, J.; Zahlmann, D.; Hose, C.; Eversheim, F.; Huber, Frank; Hecker, B.; Dogan, D.; Tempel, H.; Eichel, R.-A.; Kröger, C.; Haug, S.; Coenen, Sef; Löb, Patrick; Hofmann, Christian; Ziogas, Athanassios; Kost, Hans-Joachim
Konferenzbeitrag
Conference Paper
2022 Determination of Charge Transfer Resistance from Randles Circuit Spectra Using Elliptical Fitting
Pfeiffer, Norman; Wachter, Toni; Frickel, Jürgen; Ben Halima, Hamdi; Hofmann, Christian; Errachid, Abdelhamid; Heuberger, Albert
Konferenzbeitrag
Conference Paper
2022 Localized Induction Heating of Cu-Sn Layers for Rapid Solid-Liquid Interdiffusion Bonding Based on Miniaturized Coils
Hofmann, Christian; Satwara, Maulik; Kroll, Martin; Panhale, Sushant; Rochala, Patrick; Wiemer, Maik; Hiller, Karla; Kuhn, Harald
Zeitschriftenaufsatz
Journal Article
2021 Anziehbare Vorrichtung und Trockenelektrode zur Erfassung elektrophysiologischer Signale sowie Verfahren zur Herstellung derselben
Rybalko, Ruslan; Hofmann, Christian
Patent
2021 Experimental validation of a modeling framework for upconversion enhancement in 1D-photonic crystals
Hofmann, C.; Fischer, S.; Eriksen, E.; Bläsi, Benedikt; Reitz, C.; Yazicioglu, D.; Howard, I.A.; Richards, B.; Goldschmidt, Jan Christoph
Zeitschriftenaufsatz
Journal Article
2021 Reactive Bonding
Vogel, Klaus; Braun, Silvia; Hofmann, Christian; Weiser, Mathias; Wiemer, Maik; Otto, Thomas; Kuhn, Harald
Aufsatz in Buch
Book Article
2021 Scalable continuous synthesis of organozinc reagents and their immediate subsequent coupling reactions
Menges-Flanagan, Gabriele; Deitmann, Eva; Gössl, Lars; Hofmann, Christian; Löb, Patrick
Zeitschriftenaufsatz
Journal Article
2021 Introducing the Open Energy Ontology: Enhancing data interpretation and interfacing in energy systems analysis
Booshehri, M.; Emele, L.; Flügel, S.; Förster, H.; Frey, J.; Frey, U.; Glauer, M.; Hastings, J.; Hofmann, C.; Hoyer-Klick, C.; Hülk, L.; Kleinau, A.; Knosala, K.; Kotzur, L.; Kuckertz, P.; Mossakowski, T.; Muschner, C.; Neuhaus, F.; Pehl, M.; Robinius, M.; Sehn, V.; Stappel, M.
Zeitschriftenaufsatz
Journal Article
2021 SzenarienDB Abschlussveranstaltung - Projekt zur Erstellung einer Datenbankinfrastruktur und geeigneter Tools für die frei zugängliche Ablage von Energie- und Klimaschutz-Szenariendaten
Stappel, Mirjam; Reder, Klara; Förster, Hannah; Emele, Lukas; Winger, Christian; Glauer, Martin; Hofmann, Christian; Hülk, Ludwig
Vortrag
Presentation
2021 Laserschweißen im Mikro-Reaktor-/Reformer-Bau
Klotzbücher, T.; Braune, T.; Spitzer, I.; Hofmann, C.
Zeitschriftenaufsatz
Journal Article
2021 Elliptical fitting as an alternative approach to complex nonlinear least squares regression for modeling electrochemical impedance spectroscopy
Pfeiffer, N.; Wachter, T.; Frickel, J.; Hofmann, C.; Errachid, A.; Heuberger, A.
Konferenzbeitrag
Conference Paper
2021 Impact of normalization, standardization and pre-fit on the success rate of fitting in electrochemical impedance spectroscopy
Pfeiffer, N.; Jechow, M.; Wachter, T.; Hofmann, C.; Errachid, A.; Heuberger, A.
Zeitschriftenaufsatz
Journal Article
2021 2D Model of transfer processes for water boiling flow in microchannel
Danilov, Valery A.; Hofmann, Christian; Kolb, Gunther
Zeitschriftenaufsatz
Journal Article
2020 Selective induction heating of metallic microstructures for wafer-level MEMS packaging
Fröhlich, A.; Hofmann, C.; Rochala, P.; Kimme, J.; Kroll, M.; Kräusel, V.
Zeitschriftenaufsatz
Journal Article
2020 Induktives Bonden in der Mikrosystemtechnik
Fröhlich, A.; Hofmann, Christian
Zeitschriftenaufsatz
Journal Article
2020 Novel flexible electrochemical microreactor and its validation by three model electrosyntheses
Ziogas, Athanassios; Hofmann, Christian; Baranyai, Sebastian; Löb, Patrick; Kolb, Gunther
Zeitschriftenaufsatz
Journal Article
2020 Vapor-Phase Formation of a Hole-Transporting Thiophene Polymer Layer for Evaporated Perovskite Solar Cells
Suwa, K.; Cojocaru, Ludmila; Wienands, Karl; Hofmann, C.; Schulze, Patricia S. C.; Bett, Alexander J.; Winkler, Kristina; Goldschmidt, Jan Christoph; Glunz, Stefan W.; Nishide, H.
Zeitschriftenaufsatz
Journal Article
2020 Scalable continuous synthesis of Grignard reagents from in situ-activated magnesium metal
Menges-Flanagan, Gabriele; Deitmann, Eva; Gössl, Lars; Hofmann, Christian; Löb, Patrick
Zeitschriftenaufsatz
Journal Article
2020 Induktives Fügen in der Mikrosystemtechnik
Hofmann, C.; Fröhlich, A.; Kroll, M.
Zeitschriftenaufsatz
Journal Article
2020 Selective Heat Input for Low Temperature Metallic Wafer Level Bonding
Wiemer, Maik; Hofmann, C.; Vogel, Klaus
Zeitschriftenaufsatz
Journal Article
2019 Induktionserwärmung für das Cu-Sn SLID-Waferbonden zum Packaging in der Mikrosystemtechnik
Hofmann, Christian; Froehlich, A.; Kroll, M.; Wiemer, Maik
Konferenzbeitrag
Conference Paper
2019 Selective Induction Heating of Metallic Microstructures for Wafer-Level MEMS Packaging
Froehlich, A.; Hofmann, Christian; Rochala, P.; Kimme, J.; Kroll, M.; Kraeusel, V.
Konferenzbeitrag
Conference Paper
2019 A Novel Method for MEMS Wafer-Level Packaging. Selective and Rapid Induction Heating for Copper-Tin SLID Bonding
Hofmann, Christian; Fröhlich, A.; Kimme, J.; Wiemer, Maik; Otto, Thomas
Konferenzbeitrag
Conference Paper
2019 Scenario Data on the OpenEnergyPlatform - SzenarienDB on the OEP. A web-platform to improve transparency and reproducibility of energy systems analyses
Hülk, L.; Hofmann, C.; Koetter, E.; Reder, K.; Pape, C.; Stappel, M.; Förster, H.; Emele, L.; Winger, C.; Glauer, M.; Mossakowski, T.
Poster
2018 Wärmeübertrager und Reaktor
Hofmann, Christian; Pennemann, Helmut
Patent
2018 Self-Powered Multiparameter Health Sensor
Tobola, A.; Leutheuser, H.; Pollak, M.; Spies, P.; Hofmann, C.; Weigand, C.; Eskofier, B.M.; Fischer, G.
Zeitschriftenaufsatz
Journal Article
2018 Device for measuring biosignals of a creature and corresponding method
Hofmann, Christian; Pfeiffer, Norman
Patent
2018 Optimization of a split and recombine micromixer by improved exploitation of secondary flows
Hermann, Pascal; Timmermann, Jens; Hoffmann, Marko; Schlüter, Michael; Hofmann, Christian; Löb, Patrick; Ziegenbalg, Dirk
Zeitschriftenaufsatz
Journal Article
2018 High sensitive fluxgate sensor using new processing method to detect the output signal from the excitation coil
Rybalko, R.; Haueisen, J.; Hofmann, C.
Konferenzbeitrag
Conference Paper
2017 A Two-Layer Method for Sedentary Behaviors Classification Using Smartphone and Bluetooth Beacons
Cerón, J.D.; López, D.M.; Hofmann, C.
Konferenzbeitrag
Conference Paper
2017 Filling of high aspect ratio (HAR) nanometer-scale silicon trenches by electrochemical deposition of nickel
Hofmann, Christian; Kurth, F.; Wiemer, Maik; Otto, Thomas; Hiller, Karla
Konferenzbeitrag
Conference Paper
2017 Chemoselective three-phase hydrogenation of an Ombrabulin nitro-stilbene intermediate in a continuous-flow mobile platform
Rehm, Thomas H.; Reinhard, Dorothee; Kost, Hans-Joachim; Hofmann, Christian; Zapf, Ralf; Löb, Patrick; Laribi, Yosra; Perrichon, Philippe D.; Berguerand, Charline; Kiwi-Minsker, Lioubov; Sulman, Esther; Szirbik, Gabor; Richert, Hannes; Lang, Jürgen; Gottfried, Michael; Roggan, Stefan
Zeitschriftenaufsatz
Journal Article
2017 Integration of self-healing agent into MEMS bonding frames
Kurth, F.; Hofmann, Christian; Braun, Silvia; Braun, P.; Schroeder, T.J.; Wiemer, Maik
Konferenzbeitrag
Conference Paper
2017 Electronic Supplementary Information (ESI) for "Continuous-flow synthesis of fluorine-containing fine chemicals with integrated benchtop NMR analysis"
Rehm, T.H.; Hofmann, C.; Reinhard, D.; Kost, H.-J.; Löb, P.; Besol, M.; Welzel, K.; Barten, J.; Didenko, A.; Sevenard, D.V.; Lix, B.; Hillson, A.R.; Riegel, S.D.
Zeitschriftenaufsatz
Journal Article
2017 Continuous-flow synthesis of fluorine-containing fine chemicals with integrated benchtop NMR analysis
Rehm, Thomas H.; Hofmann, Christian; Reinhard, Dorothee; Kost, Hans-Joachim; Löb, Patrick; Besold, Matthias; Welzel, Knut; Barten, Jan; Didenko, Andrey; Sevenard, Dmitri V.; Lix, Bruce; Hillson, Andrew R.; Riegel, Susanne D.
Zeitschriftenaufsatz
Journal Article
2016 Upconversion in a Bragg structure: Photonic effects of a modified local density of states and irradiance on luminescence and upconversion quantum yield
Hofmann, C.; Herter, Barbara; Fischer, Stefan; Gutmann, J.; Goldschmidt, Jan Christoph
Zeitschriftenaufsatz
Journal Article
2016 Battery runtime optimization toolbox for wearable biomedical sensors
Tobola, Andreas; Leutheuser, Heike; Schmitz, Björn; Hofmann, Christian; Struck, Matthias; Weigand, Christian; Eskofier, Bjoern M.; Fischer, Georg
Konferenzbeitrag
Conference Paper
2016 Review of percolating and neck-based underfills with thermal conductivities up to 3 W/m-K
Brunschwiler, T.; Zürcher, J.; Zimmermann, Sven; Burg, B.R.; Schlottig, G.; Chen, X.; Sinha, T.; Baum, Mario; Hofmann, Christian; Pantou, Remi; Achen, A.; Zschenderlein, U.; Kumar, S.; Wunderle, Bernhard; Haupt, M.; Schindler-Saefkow, Florian; Strässle, R.
Konferenzbeitrag
Conference Paper
2016 Comparison of a sensorized garment and activity trackers with a mobile ergospirometry system concerning energy expenditure
Feilner, Sven; Huber, Andreas; Sauter, Christian; Weishäupl, Dirk; Hettchen, Michael; Kemmler, Wolfgang; Weigand, Christian; Hofmann, Christian
Konferenzbeitrag
Conference Paper
2016 Centrifugation of micro particles and self-assembly of nano particles by capillary bridging for 3D thermal interconnects
Hofmann, Christian; Baum, Mario; Wang, W.-S.; Wiemer, Maik
Konferenzbeitrag
Conference Paper
2016 Continuous synthesis of nanoparticles and online process analytics
Sperling, Ralph A.; Schindler, Christoph; Hofmann, Christian; Löb, Patrick
Zeitschriftenaufsatz
Journal Article
2016 Cor/log BAN BT a wearable battery powered mHealth data logger and telemetry unit for multiple vital sign monitoring
Hilbel, T.; Feilner, S.; Struck, M.; Hofmann, C.; Heinig, A.; Katus, H.A.
Konferenzbeitrag
Conference Paper
2016 Magnetic fixation of dendron-functionalized iron oxide nanoparticles with palladium for continuous-flow suzuki reactions
Rehm, Thomas H.; Hofmann, Christian; Löb, Patrick; Shifrina, Z.B.; Morgan, David Gene; Bronstein, Lyudmila M.
Zeitschriftenaufsatz
Journal Article
2016 Comprehensive analysis of photonic effects on up-conversion of v-NaYF4:Er3+ nanoparticles in an organic-inorganic hybrid 1D photonic crystal
Hofmann, C.; Fischer, S.; Reitz, C.; Richards, B.S.; Goldschmidt, Jan Christoph
Konferenzbeitrag
Conference Paper
2016 Screen-printed biochemical sensors for detection of ammonia levels in sweat - Towards integration with vital parameter monitoring sports gear
Oertel, S.; Jank, M.P.M.; Frey, L.; Hofmann, C.; Lang, N.; Struck, M.
Konferenzbeitrag
Conference Paper
2015 Proof of concept: Magnetic fixation of dendron-functionalized iron oxide nanoparticles containing palladium nanoparticles for continuous-flow suzuki coupling reactions
Rehm, Thomas H.; Bogdan, Anca; Hofmann, Christian; Löb, Patrick; Shifrina, Zinaida; Morgan, David Gene; Bronstein, Lyudmila M.
Zeitschriftenaufsatz
Journal Article
2015 Sampling rate impact on energy consumption of biomedical signal processing systems
Tobola, A.; Streit, F.J.; Espig, C.; Korpok, O.; Sauter, C.; Lang, N.; Schmitz, B.; Hofmann, C.; Struck, M.; Weigand, C.; Leutheuser, H.; Eskofier, B.M.; Fischer, G.
Konferenzbeitrag
Conference Paper
2015 Upper body game controller for physically impaired persons based on 3D acceleration data
Huber, Andreas; Koch, Robert; Haßlmeyer, Erik; Rulsch, Martin; Weigand, Christian; Struck, Matthias; Hofmann, Christian
Zeitschriftenaufsatz
Journal Article
2015 Self-assembly of micro- and nano-particles by centrifugal forces and capillary bridging for 3D thermal interconnects
Hofmann, Christian; Baum, Mario; Bodny, F.; Wiemer, Maik; Geßner, Thomas; Brunschwiler, T.; Zürcher, J.; Burg, B.R.; Zimmermann, Sven
Konferenzbeitrag
Conference Paper
2015 Scalable ECG hardware and algorithms for extended runtime of wearable sensors
Tobola, A.; Espig, C.; Streit, F.J.; Korpok, O.; Schmitz, B.; Hofmann, C.; Struck, M.; Weigand, C.; Leutheuser, H.; Eskofier, B.M.; Fischer, G.
Konferenzbeitrag
Conference Paper
2015 Electrical cardiac monitoring in the head for helmet applications
Bleda, Andres L.; Maestre, Rafael; Schmitz, Björn; Hofmann, Christian; Nacenta, Jose M.; Santa, Guadalupe; Pellicer, Soledad; Melcher, Vivien
Konferenzbeitrag
Conference Paper
2015 Continuous vital monitoring and automated alert message generation for motorbike riders
Schmitz, Björn; Hofmann, Christian; Maestre, Rafael; Bleda, Andres L.; Tobola, A.; Melcher, Vivien; Gent, J. van
Konferenzbeitrag
Conference Paper
2015 Smart vital signs and accident monitoring system for motorcyclists embedded in helmets and garments for advanced eCall emergency assistance and health analysis monitoring
Melcher, Vivien; Diederichs, Frederik; Maestre, Rafael; Hofmann, Christian; Nacenta, Jose-Maria; Gent, Jos van; Kusic, Dragan; Zagar, Bostjan
Zeitschriftenaufsatz
Journal Article
2015 Novel compliant fine pitch interconnect using Metal Coated Polymer Spheres
Wright, D.N.; Taklo, M.M.V.; Baum, Mario; Hofmann, Christian; Kristiansen, H.
Konferenzbeitrag
Conference Paper
2014 Magnetfeldsensor
Rybalko, Ruslan; Hofmann, Christian; Haueisen, Jens
Patent
2014 Photon management with luminescent materials and photonic structures
Goldschmidt, Jan Christoph; Fischer, S.; Fröhlich, B.; Gutmann, J.; Herter, Barbara; Hofmann, C.; Löffler, J.; Veggel, F.C.J.M. van; Wolf, S.
Konferenzbeitrag
Conference Paper
2014 Estimation of acoustic reflection coefficients through pseudospectrum matching
Markovic, D.; Kowalczyk, K.; Antonacci, F.; Hofmann, C.; Sarti, A.; Kellermann, W.
Zeitschriftenaufsatz
Journal Article
2014 Wafer bonding technologies for 3D integration
Baum, Mario; Hofmann, Christian; Besser, J.; Vogel, Klaus; Wiemer, Maik; Geßner, Thomas
Konferenzbeitrag
Conference Paper
2014 Investigation of low temperature wafer bonding using plasma activation
Wünsch, Dirk; Hofmann, C.; Bräuer, J.; Wiemer, Maik; Geßner, Thomas
Aufsatz in Buch
Book Article
2014 A falling-film microreactor for enzymatic oxidation of glucose
Illner, Sabine; Hofmann, Christian; Löb, Patrick; Kragl, Udo
Zeitschriftenaufsatz
Journal Article
2014 Organic upconverters embedded in a Bragg structure
Hofmann, C.; Herter, Barbara; Gutmann, J.; Löffler, J.; Fischer, S.; Wolf, S.; Piper, R.; Ekins-Daukes, Nicholas J.; Treat, N.; Goldschmidt, Jan Christoph
Konferenzbeitrag
Conference Paper
2014 Characterization of particle beds in percolating thermal underfills based on centrifugation
Zimmermann, Sven; Brunschwiler, T.; Zuercher, J.; Burg, B.; Hong, G.; Poulikakos, D.; Baum, Mario; Hofmann, Christian
Konferenzbeitrag
Conference Paper
2013 Novel manufacturing techniques for microstructured reactors in industrial dimensions
Krtschil, Ulrich; Hofmann, Christian; Löb, Patrick; Schütt, Christian; Schorcht, Peter; Streuber, Michael
Zeitschriftenaufsatz
Journal Article
2013 Direct synthesis of hydrogen peroxide over supported Pd catalysts: Turning to dense CO2 as an alternative solvent
Pashkova, A.; Greiner, L.; Krtschil, Ulrich; Hofmann, C.; Zapf, Ralf
Zeitschriftenaufsatz
Journal Article
2013 MicroSISAK: Continuous liquid-liquid extractions of radionuclides at 0.2 mL/min
Hild, D.; Eberhardt, K.; Even, J.; Kratz, J.V.; Wiehl, N.; Löb, Patrick; Werner, Bernd; Hofmann, Christian
Zeitschriftenaufsatz
Journal Article
2012 Requirement engineering in health care and telemedicine
Tobola, A.; Hofmann, C.; Weigand, C.
Konferenzbeitrag
Conference Paper
2012 Evaluation of QRS detection algorithm implemented for mobile applications based on ECG data acquired from sensorized garments
Tantinger, D.; Feilner, S.; Schmitz, D.; Weigand, C.; Hofmann, C.; Struck, M.
Konferenzbeitrag
Conference Paper
2011 Motion sensing: From single sensors to sensor networks
Rulsch, Martin; Arzt, Christian; Feilner, Sven; Jablonski, Simon; Struck, Matthias; Zhong, Jinghua; Tantinger, Daniel; Hofmann, Christian; Weigand, Christian
Aufsatz in Buch
Book Article
2011 3D Integration for MEMS devices using photosenitive glass
Wünsch, Dirk; Hofmann, Christian; Besser, J.; Schubert, I.; Gottfried, Knut; Wiemer, Maik; Geßner, Thomas
Konferenzbeitrag
Conference Paper
2010 disy Legato: Übersicht und Einsatzbeispiele für den Web-Mapping-Client im Umweltinformationssystem Baden-Württemberg
Valikov, A.; Vogel, K.; Hofmann, C.; Otterstätter, A.; Briesen, M.; Kazakos, W.; Seitz, S.; Chaves, F.; Eisenla, M.; Usländer, T.; Düpmeier, C.; Greceanu, C.; Steger, C.; Pankow, H.-G.; Luginsland, H.; Ellmenreich, B.; Müller, M.; Schillinger, W.
Aufsatz in Buch
Book Article
2010 User-friendly system for recognition of activities with an accelerometer
Krassnig, G.; Tantinger, D.; Hofmann, C.; Wittenberg, T.; Struck, M.
Konferenzbeitrag
Conference Paper
2010 Automatische Erkennung und Klassifikation von Körperhaltungen und Aktivitäten
Tantinger, D.; Krassnig, G.; Weigand, C.; Wittenberg, T.; Hofmann, C.; Struck, M.
Konferenzbeitrag
Conference Paper
2009 Vorrichtung und Verfahren zum Erfassen zumindest eines Vitalparameters einer Person; Vitalparametererfassungssystem
Ciancitto, F.; Tobola, A.; Hofmann, C.; Couronné, R.
Patent
2007 Nachweis einer Apnoe mit blutdruckabhaengig erfassten Signalen
Mörsdorf, H.; Aschenbrenner, S.; Hofmann, C.
Patent
2007 Mobile Sturzdetektion und Erfassung des Sturzverhaltens im Alltag mit ZigBee
Hofmann, C.
Konferenzbeitrag
Conference Paper
2007 ZigBee technology for medical applications
Hofmann, C.
Konferenzbeitrag
Conference Paper
2007 A fall detection system based on a wireless Zigbee sensor network
Hofmann, C.; Feilner, S.
Konferenzbeitrag
Conference Paper
2006 Wireless medical sensor network with ZigBee
Hofmann, C.; Weigand, C.; Bernhard, J.
Zeitschriftenaufsatz
Journal Article
2006 Evaluation of ZigBee for medical sensor networks
Hofmann, C.; Weigand, C.; Bernhard, J.
Zeitschriftenaufsatz
Journal Article
2006 Continuous patient monitoring and data analysis in real time with wireless sensors
Hofmann, C.
Konferenzbeitrag
Conference Paper
2001 Technologieneutrales Fachobjektmodell für das Umweltinformationssystem Baden-Württemberg
Schmieder, M.; Usländer, T.; Hofmann, C.; Otterstätter, A.; Spandl, H.
Aufsatz in Buch
Book Article
Diese Liste ist ein Auszug aus der Publikationsplattform Fraunhofer-Publica

This list has been generated from the publication platform Fraunhofer-Publica