@inproceedings{CastroKohlerHagen, author = {Castro Kohler, Mariela and Hagen, Tobias}, title = {"IT via ERP": A Novel Approach to Teaching IT Fundamentals to Business Administration students by Means of an Open Source ERP System}, series = {Multikonferenz Wirtschaftsinformatik (MKWI) 2016 : Research-in-Progress- und Poster-Beitr{\"a}ge}, organization = {Technische Universit{\"a}t Illmenau}, pages = {51}, abstract = {First year Business Administration students tend to regard themselves as "non-computer scientists" and often have a lack of motivation about taking IT courses in general, either because they perceive them as too technical, too difficult or somewhat irrelevant. In an attempt to counteract this perception and increase the levels of engagement and willing attendance to class, we decided to flip the traditional lecture model and develop a new teaching and learning approach for the IT Fundamentals course using an open source Enterprise Resource Planning (ERP) system as the platform from which to draw the various underlying IT concepts and through which the relevant competences can be acquired. This paper describes the implementation process of this new contextualized learning framework "IT via ERP" and the changes in the didactical methods to support it.}, language = {en} } @unpublished{Baumgaertler, author = {Baumg{\"a}rtler, Thomas}, title = {"Konvoi-L{\"o}sung" bei Energie-Audit}, series = {Geno-Graph : Journal f{\"u}r die Genossenschaften in Baden-W{\"u}rttemberg}, volume = {2015}, number = {12}, organization = {Baden-W{\"u}rttembergischer Genossenschaftsverband}, pages = {24 -- 28}, language = {de} } @unpublished{BreyerMaylaender, author = {Breyer-Mayl{\"a}nder, Thomas}, title = {"Machen Sie doch mal mehr PR und Werbung f{\"u}r Ihre Schule": Kommunikationscontrolling in Schulen}, series = {{\"O}ffentlichkeitsarbeit macht Schule}, number = {Aktualisierungslieferung 16.2015}, editor = {Regenthal, Gerhard}, publisher = {Wolter Kl{\"u}wer}, address = {K{\"o}ln}, isbn = {3-556-01044-5}, pages = {8}, abstract = {Henry Fords Bonmot zur Werbeerfolgskontrolle ist sicherlich der bekannteste Satz im Sektor des Kommunikationscontrollings: „Die H{\"a}lfte unserer Werbegelder werfen wir zum Fenster raus. Ich weiß nur nicht, welche H{\"a}lfte das ist." Diese kritische W{\"u}rdigung von Kommunikationsleistungen ist auch heute noch immer wieder Thema und gerade im Umfeld von Schule, wo diese Prozesse noch keine sehr lange Tradition haben, Teil der internen und externen Diskussion. Die Steuerung von Kommunikationsprozessen erfordert jedoch nicht nur die Quantifizierung von Kommunikationsleistungen, sondern eine Einbettung in die gesamte Marketingstrategie und in die Bewertung einzelner Marketingbereiche und der dort entwickelten Marketingziele.}, language = {de} } @misc{Otte2020, author = {Otte, Andreas}, title = {"Mona Lisa is always happy - and only sometimes sad" - and what about Johann Sebastian Bach?}, pages = {1}, year = {2020}, language = {en} } @inproceedings{Kaeser, author = {K{\"a}ser, Kurt}, title = {"Nachhaltige chemische Produktion" - Das 7. Freiburger Symposium 2005 im R{\"u}ckspiegel}, series = {CHIMIA International Journal for Chemistry}, volume = {59}, number = {12}, organization = {Schweizerische Chemische Gesellschaft}, issn = {0009-4293}, doi = {10.2533/000942905777675363}, pages = {983 -- 988}, abstract = {The Division Industrial Chemistry of the Swiss Chemical Society organizes periodically a two-day event for the post-graduate education of its members. This event is known as the Freiburger Symposium. This year it focussed on sustainable chemical production. The twelve talks covered the following aspects: ethical needs for sustainability standards, the required, attained, and yet to be attained sustainability goals in chemical industry. Diverse case studies showed the highly developed awareness about the sustainability issue within the chemical community.}, language = {und} } @inproceedings{SchaadReski, author = {Schaad, Andreas and Reski, Tobias}, title = {"Open Weakness and Vulnerability Modeler" (OVVL) - An Updated Approach to Threat Modeling}, series = {Proceedings of the 16th International Joint Conference on e-Business and Telecommunications, Prague, Czech Republic - Volume 2: SECRYPT}, volume = {2}, isbn = {978-989-758-378-0}, doi = {10.5220/0007919004170424}, pages = {417 -- 424}, abstract = {The development of secure software systems is of ever-increasing importance. While software companies often invest large amounts of resources into the upkeeping and general security properties of large-scale applications when in production, they appear to neglect utilizing threat modeling in the earlier stages of the software development lifecycle. When applied during the design phase of development, and continuously throughout development iterations, threat modeling can help to establish a "Secure by Design" approach. This approach allows issues relating to IT security to be found early during development, reducing the need for later improvement - and thus saving resources in the long term. In this paper the current state of threat modeling is investigated. This investigation drove the derivation of requirements for the development of a new threat modelling framework and tool, called OVVL. OVVL utilizes concepts of established threat modeling methodologies, as well as functionality not available in existing solutions.}, language = {en} } @incollection{BreyerMaylaender, author = {Breyer-Mayl{\"a}nder, Thomas}, title = {"Wahrheiten" im schulischen Umfeld - Pressearbeit in postfaktischen Zeiten}, series = {{\"O}ffentlichkeitsarbeit macht Schule. Ein praxisorientiertes Handbuch zur Umsetzung von PR an Schulen (Loseblatt-Sammlung)}, editor = {Regenthal, Gerhard}, publisher = {Carl Link Verlag}, address = {Neuwied}, isbn = {978-3-556-01044-0}, pages = {Art.-Nr. 66452019}, language = {de} } @inproceedings{SikorskiUrbinaCanzetal., author = {Sikorski, Evgenia and Urbina, Cristina and Canz, Michael and Großhans, Evelyn}, title = {"We don´t want to know their names!"}, series = {Teaching and Learning in a Digital World : Proceedings of the 20th International Conference on Interactive Collaborative Learning}, publisher = {Springer}, address = {Cham}, isbn = {978-3-319-73209-1 (Print)}, issn = {2194-5365}, doi = {10.1007/978-3-319-73210-7_19}, pages = {157 -- 168}, abstract = {In the course of the last few years, our students are becoming increasingly unhappy. Sometimes they stop attending lectures and even seem not to know how to behave correctly. It feels like they are getting on strike. Consequently, drop-out rates are sky-rocketing. The lecturers/professors are not happy either, adopting an "I-don't-care" attitude. An interdisciplinary, international team set in to find out: (1) What are the students unhappy about? Why is it becoming so difficult for them to cope? (2) What does the "I-don't-care" attitude of professors actually mean? What do they care or not care about? (3) How far do the views of the parties correlate? Could some kind of mutual understanding be achieved? The findings indicate that, at least at our universities, there is rather a long way to go from "Engineering versus Pedagogy" to "Engineering Pedagogy".}, language = {en} } @misc{Lankau, author = {Lankau, Ralf}, title = {... und wieder ruft das CHE}, language = {de} } @book{OPUS4-1991, title = {19 erfolgreiche Unternehmenskonzepte}, series = {Onlinehandel}, volume = {1}, editor = {Siegfried, Patrick}, edition = {1.}, publisher = {AVM}, address = {M{\"u}nchen}, isbn = {978-3-86924-580-5 (Print)}, pages = {431}, abstract = {Diese Fallstudien sind im Rahmen der Vorlesung "Integrationsseminar" von Bachelorstudenten/-innen des 5. Semesters an der DHBW Mannheim erarbeitet worden. Es handelt sich bei diesen Fallstudien ausschließlich um Unternehmen, die einen Onlinehandel betreiben. Jede Fallstudie beginnt mit der Beschreibung des Beispielunternehmens, deren Entwicklung und Ausrichtung. Anschließend werden die Marktsituation, sowie die St{\"a}rken und Schw{\"a}chen dargestellt. Die Handlungsempfehlung und das Fazit fassen die Schwerpunkte zusammen und die abschließenden Arbeitsfragen k{\"o}nnen f{\"u}r eine weitere Bearbeitung verwendet werden.}, language = {de} } @book{Curticapean, author = {Curticapean, Dan}, title = {2011 Eurospeedway Lausitzring}, publisher = {Hochschule Offenburg}, address = {Offenburg}, pages = {42 S.}, language = {de} } @book{OPUS4-1989, title = {21 Fallstudien aus dem Handel}, series = {Fallstudiensammlung}, volume = {2}, editor = {Siegfried, Patrick}, publisher = {AVM}, address = {M{\"u}nchen}, isbn = {978-3-86924-474-7}, pages = {219}, language = {de} } @unpublished{Jansen, author = {Jansen, Dirk}, title = {24 h EKG-Rekorder mit Bluetooth-Funkschnittstelle f{\"u}r telemedizinische Anwendungen}, series = {Horizonte : Forschung an Fachhochschulen in Baden-W{\"u}rttemberg ; anwendungsbezogen, zukunftsorientiert}, volume = {24}, number = {Juli 2004}, issn = {1432-9174}, pages = {24 -- 27}, language = {de} } @article{MilzSpangenberg, author = {Milz, Barbara and Spangenberg, Bernd}, title = {2D-Thin-Layer Chromatography (2D-TLC) Flash Test of 17α-Ethinylestradiol and related Steroids detected by Fluorescence Densitometry}, series = {Journal of liquid chromatography \& related technologies}, volume = {36}, number = {17}, issn = {1082-6076}, pages = {2378 -- 2386}, language = {en} } @article{WeinertOtte, author = {Weinert, Oliver and Otte, Andreas}, title = {3-D CAD-Rekonstruktion der ersten „Eisernen Hand" des Reichsritters Gottfried von Berlichingen (1480-1562)}, series = {Archiv f{\"u}r Kriminologie}, volume = {240}, number = {1+2}, editor = {Pollak, Stefan}, issn = {0003-9225}, pages = {50 -- 58}, abstract = {Im Jahr 1504 verlor der deutsche Ritter Gottfried („G{\"o}tz") von Berlichingen seine rechte Hand. Schon w{\"a}hrend seiner Genesung dachte er daran, die Hand zu ersetzen, und beauftragte bald darauf die erste Handprothese, die sogenannte „Eiserne Hand". Jahre sp{\"a}ter wurde die aufw{\"a}ndigere zweite „Eiserne Hand" gebaut. Wir haben die erste Prothese auf der Basis fr{\"u}herer Literaturdaten von Quasigroch (1982) mit Hilfe von 3-D Computer-Aided Design (CAD) rekonstruiert. Dazu mussten einige Abmessungen angepasst und ein paar Annahmen f{\"u}r das CAD-Modell gemacht werden. Die historische passive Prothese des G{\"o}tz von Berlichingen ist f{\"u}r die moderne Neuroprothetik interessant, da sie eine Alternative zu komplexen invasiven Brain-Machine-Interface-Konzepten darstellen k{\"o}nnte, wo diese Konzepte nicht notwendig, m{\"o}glich oder vom Patienten gew{\"u}nscht sind.}, language = {de} } @article{OtteWeinertJunk, author = {Otte, Andreas and Weinert, Oliver and Junk, Stefan}, title = {3-D CAD-Rekonstruktion der ersten „Eisernen Hand" des Reichsritters Gottfried von Berlichingen (1480-1562) - 1. Fortsetzung: Funktionspr{\"u}fung mittels 3-D Druck}, series = {Archiv f{\"u}r Kriminologie}, volume = {240}, number = {5+6}, issn = {0003-9225}, pages = {185 -- 192}, abstract = {In this study, we tested the function of a replica of the over 500-year-old original of the famous Franconian Imperial Knight G{\"o}tz von Berlichingen's first "iron hand", which we reconstructed by computer-aided design (CAD) and recently printed using a multi-material 3D printer. In different everyday tasks, the artificial hand prosthesis proved to be remarkably helpful. Thus, the hand could hold a wine glass, some grapes, or a smartphone. With a suitable pencil, even writing was possible without any problem. Although for all these functions the healthy other hand was necessary to assist at the beginning, the artificial hand is an astonishing mechanical aid with many possibilities. Therefore, in certain cases, the non-invasive approach of a passive mechanical hand replacement, which is an individual, quick and cheap solution due to modern 3D printing, may always be worth considering also for today's requirements.}, language = {de} } @article{WeinertOtte, author = {Weinert, Oliver and Otte, Andreas}, title = {3-D CAD-Rekonstruktion der ersten „Eisernen Hand" des Reichsritters Gottfried von Berlichingen (1480-1562) - 2. Fortsetzung: Funktionspr{\"u}fung eines Umbaus zu einem sensomotorischen, controllergesteuerten intelligenten Fingersystem}, series = {Archiv f{\"u}r Kriminologie : unter bes. Ber{\"u}cksichtigung der gerichtlichen Physik, Chemie und Medizin}, volume = {243}, number = {3+4}, publisher = {Schmidt-R{\"o}mhild}, address = {L{\"u}beck}, issn = {0003-9225}, pages = {126 -- 132}, abstract = {Auf Grundlage der Computer-Aided-Design (CAD)-rekonstruierten ersten „Eisernen Hand" des G{\"o}tz von Berlichingen wird ein umgebautes, controllergesteuertes sensomotorisches Fingersystem auf seine Funktionalit{\"a}t beim Greifen von unterschiedlichen Gegenst{\"a}nden beschrieben und gepr{\"u}ft. Die elektronischen Finger, die den „Pinzettengriff" nachahmen und automatisch bei dem zuvor eingestellten Anpressdruck abschalten, bewiesen eine bemerkenswerte Alltagstauglichkeit. Das vorgestellte Grundkonzept k{\"o}nnte eine Alternative bei der Entwicklung einfacher und kosteng{\"u}nstiger, aber dennoch gut einsatzf{\"a}higer bionischer H{\"a}nde sein und zeigt einmal mehr, wie historische Ideen in die Gegenwart transferiert werden k{\"o}nnen.}, language = {de} } @article{Otte, author = {Otte, Andreas}, title = {3D Computer-Aided Design Reconstructions and 3D Multi-Material Polymer Replica Printings of the First "Iron Hand" of Franconian Knight Gottfried (G{\"o}tz) von Berlichingen (1480-1562): An Overview}, series = {Prosthesis}, volume = {2}, number = {4}, publisher = {MDPI}, address = {Basel}, issn = {2673-1592}, doi = {10.3390/prosthesis2040027}, pages = {304 -- 312}, abstract = {Knight G{\"o}tz von Berlichingen (1480-1562) lost his right hand distal to the wrist due to a cannon ball splinter injury in 1504 in the Landshut War of Succession at the age of 24. Early on, G{\"o}tz commissioned a gunsmith to build the first "Iron Hand," in which the artificial thumb and two finger blocks could be moved in their basic joints by a spring mechanism and released by a push button. Some years later, probably around 1530, a second "Iron Hand" was built, in which the fingers could be moved passively in all joints. In this review, the 3D computer-aided design (CAD) reconstructions and 3D multi-material polymer replica printings of the first "Iron hand", which were developed in the last few years at Offenburg University, are presented. Even by today's standards, the first "Iron Hand"—as could be shown in the replicas—demonstrates sophisticated mechanics and well thought-out functionality and still offers inspiration and food for discussion when it comes to the question of an artificial prosthetic replacement for a hand. It is also outlined how some of the ideas of this mechanical passive prosthesis can be translated into a modern motorized active prosthetic hand by using simple, commercially available electronic components.}, language = {en} } @article{BaronHazubskiOtte, author = {Baron, Jana and Hazubski, Simon and Otte, Andreas}, title = {3D Multi-Material Printing of an Anthropomorphic, Personalized Replacement Hand for Use in Neuroprosthetics Using 3D Scanning and Computer-Aided Design: First Proof-of-Technical-Concept Study}, series = {Prosthesis}, volume = {2}, number = {4}, publisher = {MDPI}, address = {Basel}, issn = {2673-1592}, doi = {10.3390/prosthesis2040034}, pages = {362 -- 370}, abstract = {Background: This paper presents a novel approach for a hand prosthesis consisting of a flexible, anthropomorphic, 3D-printed replacement hand combined with a commercially available motorized orthosis that allows gripping. Methods: A 3D light scanner was used to produce a personalized replacement hand. The wrist of the replacement hand was printed of rigid material; the rest of the hand was printed of flexible material. A standard arm liner was used to enable the user's arm stump to be connected to the replacement hand. With computer-aided design, two different concepts were developed for the scanned hand model: In the first concept, the replacement hand was attached to the arm liner with a screw. The second concept involved attaching with a commercially available fastening system; furthermore, a skeleton was designed that was located within the flexible part of the replacement hand. Results: 3D-multi-material printing of the two different hands was unproblematic and inexpensive. The printed hands had approximately the weight of the real hand. When testing the replacement hands with the orthosis it was possible to prove a convincing everyday functionality. For example, it was possible to grip and lift a 1-L water bottle. In addition, a pen could be held, making writing possible. Conclusions: This first proof-of-concept study encourages further testing with users.}, language = {en} } @article{WehsenerHeinkeMuessigetal., author = {Wehsener, Sandra and Heinke, Matthias and M{\"u}ssig, Robin and H{\"o}rth, Johannes and Junk, Stefan and Schrock, Steffen}, title = {3d print of heart rhythm model with cryoballoon catheter ablation of pulmonary vein}, series = {Current Directions in Biomedical Engineering}, volume = {5}, number = {1}, publisher = {Walter de Gruyter}, address = {Berlin, Boston}, issn = {2364-5504}, doi = {10.1515/cdbme-2019-0060}, pages = {235 -- 238}, abstract = {The visualization of heart rhythm disturbance and atrial fibrillation therapy allows the optimization of new cardiac catheter ablations. With the simulation software CST (Computer Simulation Technology, Darmstadt) electromagnetic and thermal simulations can be carried out to analyze and optimize different heart rhythm disturbance and cardiac catheters for pulmonary vein isolation. Another form of visualization is provided by haptic, three-dimensional print models. These models can be produced using an additive manufacturing method, such as a 3d printer. The aim of the study was to produce a 3d print of the Offenburg heart rhythm model with a representation of an atrial fibrillation ablation procedure to improve the visualization of simulation of cardiac catheter ablation. The basis of 3d printing was the Offenburg heart rhythm model and the associated simulation of cryoablation of the pulmonary vein. The thermal simulation shows the pulmonary vein isolation of the left inferior pulmonary vein with the cryoballoon catheter Arctic Front Advance™ from Medtronic. After running through the simulation, the thermal propagation during the procedure was shown in the form of different colors. The three-dimensional print models were constructed on the base of the described simulation in a CAD program. Four different 3d printers are available for this purpose in a rapid prototyping laboratory at the University of Applied Science Offenburg. Two different printing processes were used and a final print model with additional representation of the esophagus and internal esophagus catheter was also prepared for printing. With the help of the thermal simulation results and the subsequent evaluation, it was possible to draw a conclusion about the propagation of the cold emanating from the catheter in the myocardium and the surrounding tissue. It was measured that just 3 mm from the balloon surface into the myocardium the temperature dropped to 25 °C. The simulation model was printed using two 3d printing methods. Both methods, as well as the different printing materials offer different advantages and disadvantages. All relevant parts, especially the balloon catheter and the conduction, are realistically represented. Only the thermal propagation in the form of different colors is not shown on this model. Three-dimensional heart rhythm models as well as virtual simulations allow very clear visualization of complex cardiac rhythm therapy and atrial fibrillation treatment methods. The printed models can be used for optimization and demonstration of cryoballoon catheter ablation in patients with atrial fibrillation.}, language = {en} } @article{WehsenerHeinkeMuessigetal., author = {Wehsener, Sandra and Heinke, Matthias and M{\"u}ssig, Robin and Junk, Stefan and H{\"o}rth, Johannes and Schrock, Steffen}, title = {3D-Druck der Ablation von Vorhofflimmern}, series = {Forschung im Fokus}, number = {23}, organization = {Institut f{\"u}r Angewandte Forschung}, issn = {1866-9352}, pages = {70 -- 71}, abstract = {Um medizinische Behandlungsverfahren in der Praxis besser verstehen und anwenden zu k{\"o}nnen, gewinnt die Visualisierung der Prozesse an immer gr{\"o}ßerer Bedeutung. Durch Anwendung der Computer-Simulationssoftware CST k{\"o}nnen elektromagnetische und thermische Simulationen zur Analyse verschiedener Herzrhythmusst{\"o}rungen durchgef{\"u}hrt werden. Eine weitere Form der Visualisierung erfolgt durch haptische, dreidimensionale Druckmodelle. Diese Modelle k{\"o}nnen mit einem generativen Herstellungsverfahren, wie z. B. einem 3D-Drucker, in k{\"u}rzester Zeit hergestellt werden.}, language = {de} } @inproceedings{WendtHangstGawronetal., author = {Wendt, Thomas and Hangst, Nikolai and Gawron, Philipp and Junk, Stefan}, title = {3D-Druck von leitf{\"a}higen Materialien bei gedruckter Sensorik in intelligenten und multifunktional aufgebauten Mensch-RoboterKollaborations-Greifsystemen}, series = {Sensoren und Messsysteme : Beitr{\"a}ge der 19. ITG/GMA-Fachtagung 26.-27. Juni 2018 in N{\"u}rnberg}, publisher = {VDE-Verlag}, address = {Berlin, N{\"u}rnberg}, organization = {VDI/VDE-Gesellschaft}, isbn = {978-3-8007-4683-5}, pages = {135 -- 138}, language = {de} } @unpublished{Daryusi, author = {Daryusi, Ali}, title = {3D-FEM-Kontaktspannungsanalyse an Passverzahnungen mit Querschnitts{\"u}berg{\"a}ngen}, series = {11. Gemeinsames Kolloquium Konstruktionstechnik 2013, 12.-13. September Aachen}, volume = {15}, editor = {Br{\"o}kel, Klaus}, isbn = {978-3-8440-2182-0}, pages = {179 -- 192}, language = {de} } @misc{OtteWeinertJunk, author = {Otte, Andreas and Weinert, Oliver and Junk, Stefan}, title = {3D-multimaterial printing-Knight G{\"o}tz von Berlichingen's trendsetting "iron hand"}, series = {Science}, volume = {353}, number = {6307}, pages = {1 -- 2}, language = {en} } @article{BreyerMaylaender, author = {Breyer-Mayl{\"a}nder, Thomas}, title = {50 plus: Wie lassen sich {\"a}ltere Kunden erreichen? Die Lebenssituation der Kunden ergr{\"u}nden}, series = {Die Sparkassen-Zeitung : Wochenzeitung f{\"u}r die Sparkassen-Finanzgruppe}, volume = {2008}, number = {41}, issn = {1612-3743}, language = {de} } @inproceedings{YusoffZakariaSikoraetal., author = {Yusoff, Nin Hayati Mohd and Zakaria, Nurul Azma and Sikora, Axel and Elayanithottathil, Jubin Sebastian}, title = {6LoWPAN Protocol in Fixed Environment: A Performance Assessment Analysis}, series = {Proceedings of the 2019 10th IEEE International Conference on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications (IDAACS)}, volume = {2}, organization = {IEEE}, isbn = {978-1-7281-4069-8 (digital)}, doi = {10.1109/IDAACS.2019.8924283}, pages = {1142 -- 1147}, abstract = {The Internet of Things (IoT) application has becoming progressively in-demand, most notably for the embedded devices (ED). However, each device has its own difference in computational capabilities, memory usage, and energy resources in connecting to the Internet by using Wireless Sensor Networks (WSNs). In order for this to be achievable, the WSNs that form the bulk of the IoT implementation requires a new set of technologies and protocol that would have a defined area, in which it addresses. Thus, IPv6 Low Power Area Network (6LoWPAN) was designed by the Internet Engineering Task Force (IETF) as a standard network for ED. Nevertheless, the communication between ED and 6LoWPAN requires appropriate routing protocols for it to achieve the efficient Quality of Service (QoS). Among the protocols of 6LoWPAN network, RPL is considered to be the best protocol, however its Energy Consumption (EC) and Routing Overhead (RO) is considerably high when it is implemented in a large network. Therefore, this paper would propose the HRPL to enchance the RPL protocol in reducing the EC and RO. In this study, the researchers would present the performance of RPL and HRPL in terms of EC, Control traffic Overhead (CTO) and latency based on the simulation of the 6LoWPAN network in fixed environment using COOJA simulator. The results show HRPL protocol achieves better performance in all the tested topology in terms of EC and CTO. However, the latency of HRPL only improves in chain topology compared with RPL. We found that further research is required to study the relationship between the latency and the load of packet transmission in order to optimize the EC usage.}, language = {en} } @book{OPUS4-1992, title = {9 erfolgreiche Elektronikhandel-Unternehmenskonzepte}, series = {Onlinehandel}, volume = {2}, editor = {Siegfried, Patrick}, publisher = {AVM}, address = {M{\"u}nchen}, isbn = {978-3-86924-581-2 (Print)}, pages = {194}, abstract = {Diese Fallstudien sind im Rahmen der Vorlesung "Integrationsseminar" von Bachelorstudenten/-innen des 5. Semesters an der DHBW Mannheim erarbeitet worden.Es handelt sich bei diesen Fallstudien ausschließlich um Unternehmen, die einen Onlinehandel betreiben.Jede Fallstudie beginnt mit der Beschreibung des Beispielunternehmens, deren Entwicklung und Ausrichtung. Anschließend werden die Marktsituation, sowie die St{\"a}rken und Schw{\"a}chen dargestellt. Das Fazit und eine Handlungsempfehlung fassen die Schwerpunkte zusammen und die abschließenden Arbeitsfragen k{\"o}nnen f{\"u}r eine weitere Bearbeitung verwendet werden.}, language = {de} } @inproceedings{KlemmHoppeSeebacher, author = {Klemm, Martin and Hoppe, Harald and Seebacher, Fabian}, title = {[Poster] Non-Parametric Camera-Based Calibration of Optical See-Through Glasses for Augmented Reality Applications}, series = {IEEE International Symposium on Mixed and Augmented reality - Science \& Technology 2014 : Proceedings}, editor = {Julier, Simon and Lindeman, Robert W. and Sandor, Christian}, organization = {IEEE}, isbn = {978-1-4799-6184-9}, doi = {10.1109/ISMAR.2014.6948446}, pages = {273 -- 274}, abstract = {This work describes a camera-based method for the calibration of optical See-Through Glasses (STGs). A new calibration technique is introduced for calibrating every single display pixel of the STGs in order to overcome the disadvantages of a parametric model. A non-parametric model compared to the parametric one has the advantage that it can also map arbitrary distortions. The new generation of STGs using waveguide-based displays [5] will have higher arbitrary distortions due to the characteristics of their optics. First tests show better accuracies than in previous works. By using cameras which are placed behind the displays of the STGs, no error prone user interaction is necessary. It is shown that a high accuracy tracking device is not necessary for a good calibration. A camera mounted rigidly on the STGs is used to find the relations between the system components. Furthermore, this work elaborates on the necessity of a second subsequent calibration step which adapts the STGs to a specific user. First tests prove the theory that this subsequent step is necessary.}, language = {en} } @inproceedings{EbleWaltersberger, author = {Eble, Christian and Waltersberger, Bernd}, title = {A basic approach for the integration of Fluid-Dynamic-Effects in a MBD-Simulation of Fluid-Conveying-Pipes}, series = {3rd ECCOMAS Young Investigators Conference}, organization = {RWTH Aachen}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:82-rwth-2015-039806}, pages = {84 -- 87}, language = {en} } @unpublished{WendtVolkMackensen, author = {Wendt, Thomas and Volk, Franziska and Mackensen, Elke}, title = {A benchmark analysis of Long Range (LoRaTM) Communication at 2.45 Ghz for safety applications}, series = {Wireless Congress 2014 : Systems \& Applications Conference Proceedings}, isbn = {978-1-4799-7521-1}, doi = {10.1109/WAMICON.2015.7120312}, language = {en} } @inproceedings{JunkSchrock, author = {Junk, Stefan and Schrock, Steffen}, title = {A Benchmark of Service Providers in Additive Manufacturing}, series = {Athens Institute for Education and Research: Industrial Engineering Papers}, number = {IND2015-1751}, pages = {1 -- 14}, language = {en} } @inproceedings{WendtVolkMackensen, author = {Wendt, Thomas and Volk, Franziska and Mackensen, Elke}, title = {A benchmark survey of Long Range (LoRaTM) Spread-Spectrum-Communication at 2.45 GHz for safety applications}, series = {Proceedings of the 16th IEEE MTT-S WAMICON, Wireless an Microwave Technology Conference (IEEE WAMICON-2015)}, pages = {1 -- 4}, language = {en} } @inproceedings{VauderwangeWozniakJavahiralyetal., author = {Vauderwange, Oliver and Wozniak, Peter and Javahiraly, Nicolas and Curticapean, Dan}, title = {A blended learning concept for an engineering course in the field of color representation and display technologies}, series = {SPIE Conference Proceedings SPIE Optical Engineering + Applications, 2016, San Diego, California, United States}, organization = {SPIE}, doi = {10.1117/12.2237612}, pages = {9}, abstract = {The Paper presents the design and development of a blended learning concept for an engineering course in the field of color representation and display technologies. A suitable learning environment is crucial for the success of the teaching scenario. A mixture of theoretical lectures and hands-on activities with practical applications and experiments, combined with the advantages of modern digital media is the main topic of the paper. Blended learning describes the didactical change of attendance periods and online periods. The e-learning environment for the online period is designed toward an easy access and interaction. Present digital media extends the established teaching scenarios and enables the presentation of videos, animations and augmented reality (AR). Visualizations are effective tools to impart learning contents with lasting effect. The preparation and evaluation of the theoretical lectures and the hands-on activities are stimulated and affects positively the attendance periods. The tasks and experiments require the students to work independently and to develop individual solution strategies. This engages and motivates the students, deepens the knowledge. The authors will present their experience with the implemented blended learning scenario in this field of optics and photonics. All aspects of the learning environment will be introduced.}, language = {en} } @inproceedings{SikorskiCanz, author = {Sikorski, Evgenia and Canz, Michael}, title = {A Cheer-and-Challenge Approach in Teaching Mechanics to Demotivated Freshmen}, series = {IEEE International Conference on Teaching}, pages = {366}, language = {en} } @article{FawazJansen, author = {Fawaz, Nidal and Jansen, Dirk}, title = {A Chip for the Electronic Pill}, series = {Activity Report 2008 : Europractice IC Service}, volume = {2008}, pages = {24}, language = {en} } @article{ErozanWangBishnoietal., author = {Erozan, Ahmet Turan and Wang, Guan Ying and Bishnoi, Rajendra and Aghassi-Hagmann, Jasmin and Tahoori, Mehdi Baradaran}, title = {A Compact Low-Voltage True Random Number Generator based on Inkjet Printing Technology}, series = {IEEE Transactions on Very Large Scale Integration (VLSI) Systems}, volume = {28}, number = {6}, issn = {1063-8210 (Print)}, doi = {10.1109/TVLSI.2020.2975876}, pages = {1485 -- 1495}, abstract = {Printed electronics (PE) is a fast-growing field with promising applications in wearables, smart sensors, and smart cards, since it provides mechanical flexibility, and low-cost, on-demand, and customizable fabrication. To secure the operation of these applications, true random number generators (TRNGs) are required to generate unpredictable bits for cryptographic functions and padding. However, since the additive fabrication process of the PE circuits results in high intrinsic variations due to the random dispersion of the printed inks on the substrate, constructing a printed TRNG is challenging. In this article, we exploit the additive customizable fabrication feature of inkjet printing to design a TRNG based on electrolyte-gated field-effect transistors (EGFETs). We also propose a printed resistor tuning flow for the TRNG circuit to mitigate the overall process variation of the TRNG so that the generated bits are mostly based on the random noise in the circuit, providing a true random behavior. The simulation results show that the overall process variation of the TRNGs is mitigated by 110 times, and the generated bitstream of the tuned TRNGs passes the National Institute of Standards and Technology - Statistical Test Suite. For the proof of concept, the proposed TRNG circuit was fabricated and tuned. The characterization results of the tuned TRNGs prove that the TRNGs generate random bitstreams at the supply voltage of down to 0.5 V. Hence, the proposed TRNG design is suitable to secure low-power applications in this domain.}, language = {en} } @inproceedings{LeMoserLemmeretal., author = {Le, Vy and Moser, Patrick and Lemmer, Uli and Mackensen, Elke}, title = {A Comparison of Printed Flexible RFID/NFC Antennas for a Microelectronic Measurement System}, series = {2019 IEEE International Conference on RFID Technology and Applications (RFID-TA) : Proceedings}, organization = {IEEE}, isbn = {978-1-7281-0589-5 (Online)}, doi = {10.1109/RFID-TA.2019.8892040}, pages = {49 -- 54}, abstract = {Radio frequency identification (RFID) antennas are popular for high frequency (HF) RFID, energy transfer and near field communication (NFC) applications. Particularly for wireless measurement systems the RFID/NFC technology is a good option to implement a wireless communication interface. In this context, the design of corresponding reader and transmitter antennas plays a major role for achieving suitable transmission quality. This work proves the feasibility of the rapid prototyping of a RFID/NFC antenna, which is used for the wireless communication and energy harvesting at the required frequency of 13.56 MHz. A novel and low-cost direct ink writing (DIW) technology utilizing highly viscous silver nanoparticle ink is used for this process. This paper describes the development and analysis of low-cost printed flexible RFID/NFC antennas on cost-effective substrates for a microelectronic vital parameter measurement system. Furthermore, we compare the measured technical parameters with existing copper-based counterparts on a FR4 substrate.}, language = {en} } @unpublished{OrtegaClaveroJavahiralyWeberetal., author = {Ortega Clavero, Valentin and Javahiraly, Nicolas and Weber, Andreas and Schr{\"o}der, Werner and Meyrueis, Patrick L.}, title = {A Comparison of the Raman Spectral Information from Toluene and Cyclohexane Using Different Fourier Transform (FT)-Raman Devices}, series = {Lasers in engineering : LIE}, volume = {32}, number = {5/6}, issn = {0898-1507}, pages = {295 -- 302}, language = {en} } @inproceedings{HagenCastroKohler, author = {Hagen, Tobias and Castro Kohler, Mariela}, title = {A Conceptual Framework for a Communication and Collaboration Platform Within a European Transnational Logistics Knowledge Cluster of Universities and Companies}, series = {The 11th International Conference on EUropean Transnational Educational (ICEUTE 2020)}, volume = {Advances in Intelligent Systems and Computing 1266}, editor = {Herrero, {\´A}lvaro and Cambra, Carlos and Urda, Daniel and Sedano, Javier and Quinti{\´a}n, H{\´e}ctor and Corchado, Emilio}, publisher = {Springer Nature}, address = {Cham}, isbn = {978-3-030-57798-8 (Print)}, issn = {2194-5357 (Print)}, doi = {10.1007/978-3-030-57799-5_9}, pages = {84 -- 93}, abstract = {The need for the logistics sector to timely respond to the increasing requirements of a globalised and digitalised world relies greatly on the com- petences and skills of its labour force. It becomes therefore essential to reinforce the cooperation between universities and business partners in the logistics and supply chain management fields across the European region and to build a logistics knowledge cluster supported by a communication and collaboration platform to foster continuous learning, skill acquisition and experience sharing anytime anywhere. In this paper we focus on designing the conceptual and technical framework for a communication and collaboration platform with the aim to establish the communication pipelines between the partner institutions, facilitating user interactions and exchange, leading to the creation of new knowledge and innovation in the logistics field. This framework is based on the requirements of the three main stakeholders: students, lecturers and companies, and consists of four functional areas defined according to the platform opera- tional requirements. A working prototype of the platform was developed using the Moodle learning management system and its core tools to determine its applicability and possible enhancement requirements. In the next stages of the project some additional tools like a knowledge base and the integration of the partners' learning management systems to form the logistics knowledge cluster will be implemented.}, language = {en} } @inproceedings{KallelUzielSchappacheretal., author = {Kallel, Ahmed Yahia and Uziel, Sebastian and Schappacher, Manuel and Sikora, Axel and Keutel, Thomas and Kanoun, Olfa}, title = {A Cost-Efficient and Continuous Ethernet Cable Diagnosis Technique based on Undersampling}, series = {Proceedings of the 2019 10th IEEE International Conference on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications (IDAACS)}, address = {Metz}, organization = {IEEE}, isbn = {978-1-7281-4069-8 (digital)}, doi = {10.1109/IDAACS.2019.8924458}, pages = {695 -- 700}, abstract = {The monitoring of industrial environments ensures that highly automated processes run without interruption. However, even if the industrial machines themselves are monitored, the communication lines are currently not continuously monitored in todays installations. They are checked usually only during maintenance intervals or in case of error. In addition, the cables or connected machines usually have to be removed from the system for the duration of the test. To overcome these drawbacks, we have developed and implemented a cost-efficient and continuous signal monitoring of Ethernet-based industrial bus systems. Several methods have been developed to assess the quality of the cable. These methods can be classified to either passive or active. Active methods are not suitable if interruption of the communication is undesired. Passive methods, on the other hand, require oversampling, which calls for expensive hardware. In this paper, a novel passive method combined with undersampling targeting cost-efficient hardware is proposed.}, language = {en} } @article{FischerSchweizerSeifert, author = {Fischer, Carl and Schweizer, Christoph and Seifert, Thomas}, title = {A crack opening stress equation for in-phase and out-of-phase thermomechanical fatigue loading}, series = {International Journal of Fatigue}, volume = {88}, publisher = {Elsevier}, issn = {0142-1123}, doi = {10.1016/j.ijfatigue.2016.03.011}, url = {http://nbn-resolving.de/urn:nbn:de:0011-n-4041878}, pages = {178 -- 184}, abstract = {In this paper, a crack opening stress equation for in-phase and out-of-phase thermomechanical fatigue (TMF) loading is proposed. The equation is derived from systematic calculations of the crack opening stress with a temperature dependent strip yield model for both plane stress and plane strain, different load ratios and different ratios of the temperature dependent yield stress in compression and tension. Using a load ratio scaled by the ratio of the yield stress in compression and tension, the equation accounts for the effect of the temperature dependent yield stress and the constraint on the crack opening stress. Based on the scaling relation established in this paper, Newman's crack opening stress equation for isothermal loading is enabled to predict the crack opening stress under TMF loading.}, language = {en} } @inproceedings{TrahaschLauerZibello, author = {Trahasch, Stephan and Lauer, Tobias and Zibello, Ruth}, title = {A Data Clustering Approach for Automated Optical Inspection of Metal Work Pieces}, series = {ALLDATA 2018, The Fourth International Conference on Big Data, Small Data, Linked Data and Open Data}, isbn = {978-1-61208-631-6}, pages = {64 -- 68}, abstract = {This paper describes the use of the single-linkage hierarchical clustering method in outlier detection for manufactured metal work pieces. The main goal of the study is to group defects that occur 5 mm into a work piece from the edge, i.e., the border of the metal work piece. The goal is to remove defects outside the area of interest as outliers. According to the assumptions made for the performance criteria, the single-linkage method has achieved better results compared to other agglomeration methods.}, language = {en} } @misc{KupperRissmannBessler, author = {Kupper, Christian and Rißmann, Sascha and Bessler, Wolfgang G.}, title = {A Detailed-Electrochemistry Model of an LiFePO4/Graphite Lithium-Ion Cell Capturing Abuse and Aging Phenomena}, series = {232nd Meeting of the Electrochemical Society, Washington D.C., USA (10/2017), ECS Meeting Abstracts}, pages = {378 -- 378}, language = {en} } @article{PitzenGeislerMatthiasetal., author = {Pitzen, Tobias and Geisler, Fred and Matthias, Dieter and M{\"u}ller-Storz, Hans and Barbier, Dragos and Steudel, Wolf-Ingo}, title = {A finite element model for predicting the biomechanical behaviour of the human lumbar spine}, series = {Control Engineering Practice}, volume = {10}, number = {1}, publisher = {Elsevier}, issn = {1873-6939}, doi = {10.1016/S0967-0661(01)00129-0}, pages = {83 -- 90}, abstract = {The aim of this study was to develop a biomechanically validated finite element model to predict the biomechanical behaviour of the human lumbar spine in compression. For validation of the finite element model, an in vitro study was performed: Twelve human lumbar cadaveric spinal segments (six segments L2/3 and six segments L4/5) were loaded in axial compression using 600 N in the intact state and following surgical treatment using two different internal stabilisation devices. Range of motion was measured and used to calculate stiffness. A finite element model of a human spinal segment L3/4 was loaded with the same force in intact and surgically altered state, corresponding to the situation of biomechanical in vitro study. The results of the cadaver biomechanical and finite element analysis were compared. As they were close together, the finite element model was used to predict: (1) load-sharing within human lumbar spine in compression, (2) load-sharing within osteoporotic human lumbar spine in compression and (3) the stabilising potential of the different spinal implants with respect to bone mineral density. A finite element model as described here may be used to predict the biomechanical behaviour of the spine. Moreover, the influence of different spinal stabilisation systems may be predicted.}, language = {en} } @inproceedings{NeidhardtFronczekJahnkeetal., author = {Neidhardt, Jonathan Philipp and Fronczek, David Norman and Jahnke, Thomas and Danner, Timo and Horstmann, Birger and Bessler, Wolfgang G.}, title = {A Flexible Framework for Modeling Multiple Solid, Liquid and Gaseous Phases in Batteries and Fuel Cells}, series = {Journal of The Electrochemical Society}, volume = {159}, number = {9}, organization = {Electrochemical Society}, issn = {0013-4651}, doi = {10.1149/2.023209jes}, pages = {A1528 -- A1542}, abstract = {Multi-phase management is crucial for performance and durability of electrochemical cells such as batteries and fuel cells. In this paper we present a generic framework for describing the two-dimensional spatiotemporal evolution of gaseous, liquid and solid phases, as well as their interdependence with interfacial (electro-)chemistry and microstructure in a continuum description. The modeling domain consists of up to seven layers (current collectors, channels, electrodes, separator/membrane), each of which can consist of an arbitrary number of bulk phases (gas, liquid, solid) and connecting interfaces (two-phase or multi-phase boundaries). Bulk and interfacial chemistry is described using global or elementary kinetic reactions. Multi-phase management is coupled to chemistry and to mass and charge transport within bulk phases. The functionality and flexibility of this framework is demonstrated using four application areas in the context of post-lithium-ion batteries and fuel cells, that is, lithium-sulfur (Li-S) cells, lithium-oxygen (Li-O) cells, solid oxide fuel cells (SOFC) and polymer electrolyte membrane fuel cells (PEFC). The results are compared to models available in literature and properties of the generic framework are discussed.}, language = {en} } @inproceedings{SchappacherSchmittSikoraetal., author = {Schappacher, Manuel and Schmitt, Edgar and Sikora, Axel and Weber, Patrick and Yushev, Artem}, title = {A Flexible, Modular, Open-Source Implementation of 6LoWPAN}, series = {8th IEEE International Conference on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications}, organization = {IEEE}, isbn = {978-1-4673-8361-5 (digital)}, doi = {10.1109/IDAACS.2015.7341421}, pages = {838 -- 844}, abstract = {6LoWPAN (IPv6 over Low Power Wireless Personal Area Networks) is gaining more and more attraction for the seamless connectivity of embedded devices for the Internet of Things. It can be observed that most of the available solutions are following an open source approach, which significantly leads to a fast development of technologies and of markets. Although the currently available implementations are in a pretty good shape, all of them come with some significant drawbacks. It was therefore decided to start the development of an own implementation, which takes the advantages from the existing solutions, but tries to avoid the drawbacks. This paper discussed the reasoning behind this decision, describes the implementation and its characteristics, as well as the testing results. The given implementation is available as open-source project under [15].}, language = {en} } @inproceedings{GrundUmfahrerBuchweitzetal., author = {Grund, Jonas and Umfahrer, Moritz and Buchweitz, Lea and Gay, James and Theil, Arthur and Korn, Oliver}, title = {A Gamified and Adaptive Learning System for Neurodivergent Workers in Electronic Assembling Tasks}, series = {Proceedings of the Conference on Mensch und Computer (MuC '20)}, publisher = {ACM Press}, address = {New York}, organization = {Association for Computing Machinery}, isbn = {978-1-4503-7540-5}, doi = {10.1145/3404983.3410420}, pages = {491 -- 494}, abstract = {Learning and work-oriented assistive systems are often designed to fit the workflow of neurotypical workers. Neurodivergent workers and individuals with learning disabilities often present cognitive and sensorimotor characteristics that are better accommodated with personalized learning and working processes. Therefore, we designed an adaptive learning system that combines an augmented interaction space with user-sensitive virtual assistance to support step-by-step guidance for neurodivergent workers in electronic assembling tasks. Gamified learning elements were also included in the interface to provide self-motivation and praise whenever users progress in their learning and work achievements.}, language = {en} } @misc{Otte, author = {Otte, Andreas}, title = {A hair lock from Nicol{\`o} Paganini}, series = {Science}, volume = {351}, number = {6278}, issn = {1095-9203}, pages = {1134 -- 1134}, language = {en} } @inproceedings{SikoraSchappacher, author = {Sikora, Axel and Schappacher, Manuel}, title = {A highly scalable IEEE802.11p communication and localization subsystem for autonomous urban driving}, series = {International Conference on Connected Vehicles \& Expo (ICCVE)2013}, isbn = {978-1-4799-2491-2}, issn = {2378-1297}, doi = {10.1109/ICCVE.2013.6799894}, language = {en} } @inproceedings{SikoraSchappacher, author = {Sikora, Axel and Schappacher, Manuel}, title = {A Highly Scalable IEEE802.11p Subsystem Using Communication and Localization for Increased Vehicular Safety}, series = {International Journal of Electrical Energy 2013 International Conference on Control, Robotics and Cybernetics, Mal{\´e} (Maldives)}, volume = {1}, number = {2/2013}, doi = {10.12720/ijoee.1.2.80-85}, pages = {80 -- 85}, language = {en} }