@article{ViethEisenbeiss2011, author = {Vieth, Matthias and Eisenbeiß, Maik}, title = {Die Geld-zur{\"u}ck-Garantie - Mehr als nur ein Qualit{\"a}tsindikator?}, series = {Zeitschrift f{\"u}r Betriebswirtschaft}, volume = {81}, journal = {Zeitschrift f{\"u}r Betriebswirtschaft}, number = {12}, publisher = {Springer}, address = {Berlin}, doi = {10.1007/s11573-011-0521-4}, pages = {1285 -- 1323}, year = {2011}, abstract = {Geld-zur{\"u}ck-Garantien erlangen in der Unternehmenspraxis eine immer gr{\"o}ßere Bedeutung, vor allem weil sie als probates Mittel zur Signalisierung hochwertiger Qualit{\"a}t angesehen werden - eine Annahme, die bislang wissenschaftlich ungepr{\"u}ft geblieben ist. Vor diesem Hintergrund wird im vorliegenden Beitrag eine umfassende empirische Untersuchung der kaufverhaltensrelevanten Wirkungen dieses Marketinginstrumentes vorgenommen. Die Ergebnisse verdeutlichen zum einen, dass eine Geld-zur{\"u}ck-Garantie nur unter bestimmten Bedingungen als Qualit{\"a}tssignal wirkt. Dies h{\"a}ngt neben der Art des Produktes (Erfahrungs- vs. Suchgut) insbesondere von der Auspr{\"a}gung des f{\"u}r die Qualit{\"a}tsbeurteilung besonders diagnostischen Merkmals Marke sowie von der Produktkenntnis der Konsumenten ab. Zum anderen zeigt sich aber auch, dass eine Geld-zur{\"u}ck-Garantie affektive Konsumentenreaktionen ausl{\"o}st, die die Kaufabsicht von Konsumenten zus{\"a}tzlich erh{\"o}hen k{\"o}nnen. Zusammenfassend stellen wir fest, dass eine Geld-zur{\"u}ck-Garantie - entgegen bisheriger Erwartungen aus der Praxis - nicht zwingend ein Qualit{\"a}tsindikator ist, stattdessen entfaltet sie aber bisher unbeachtete affektive Wirkungen, die insbesondere auf ihre absichernde Funktion von etwaigen Fehlentscheidungen beim Kauf zur{\"u}ckzuf{\"u}hren sind.}, language = {de} } @article{Fissabre2018, author = {Fissabre, Anke}, title = {Die Relevanz der historischen Bauforschung f{\"u}r neue Impulse in Stadtplanung und Architektur. Das Beispiel der Chiesa della SS. Maria Incoronata und des Servitenklosters in Sabbioneta.}, series = {archimaera}, journal = {archimaera}, number = {Nr. 7, Juli 2018}, publisher = {Archimaera}, address = {Aachen}, issn = {1865-7001}, url = {http://nbn-resolving.de/urn:nbn:de:0009-21-47067}, pages = {99 -- 105}, year = {2018}, abstract = {Durch die Bauforschung im Rahmen des mehrj{\"a}hrigen Projektes "Die Hochkorridore von Sabbioneta" konnten der Verlauf und viele Anschl{\"u}sse der hochliegenden G{\"a}nge an bestehende Bauten weitgehend gekl{\"a}rt werden. Im Bereich der Chiesa della SS. Maria Incoronata und des angrenzenden Servitenklosters f{\"u}hrten die Bauuntersuchungen zu v{\"o}llig neuen Erkenntnissen {\"u}ber den ehemaligen Verlauf des Hochkorridors und damit zu einer Neuinterpretation des baulichen Ensembles sowie seiner Bedeutung f{\"u}r die Idealstadt. Aus dieser historischen Umdeutung entstanden Ideen f{\"u}r die Umnutzung des ehemaligen Servitenklosters und seiner angrenzenden Freifl{\"a}chen, die im Rahmen von studentischen Entw{\"u}rfen am Lehrstuhl f{\"u}r Baugeschichte und Denkmalpflege in Kooperation mit dem Lehrstuhl f{\"u}r Landschaftsarchitektur der RWTH Aachen weiterentwickelt wurden. Somit stellten sich Befunde einer historisch orientierten Bauforschung mit {\"u}bergeordneter Fragestellung als neue Impulsgeber f{\"u}r Stadtplanung, Architektur und Denkmalpflege heraus.}, language = {de} } @techreport{LessenichRitzWallenborn2014, author = {Leßenich, Nina and Ritz, Thomas and Wallenborn, Ramona}, title = {Prototyping zur Verbesserung der Benutzerfreundlichkeit mobiler Software : Potenziale benutzerfreundlicher Software-Entwicklung ; Info-Brosch{\"u}re}, publisher = {eBusiness-Lotse}, address = {Aachen}, pages = {7 S. : Ill., graph. Darst.}, year = {2014}, abstract = {Mobile Anwendungen nehmen mit der Verbreitung von Smartphones zu. Die Akzeptanz der Nutzer bestimmt den Erfolg solcher mobiler Applikationen dabei maßgeblich. Um diese Anerkennung zu schaffen, ist eine m{\"o}glichst hohe Gebrauchstauglichkeit, auch Usability genannt, notwendig. Die Informationsbrosch{\"u}re „Prototyping zur Verbesserung der Benutzerfreundlichkeit mobiler Software" richtet sich an Personen, die an der Gestaltung und entwicklung von (mobiler) Software beteiligt sind. In dieser Brosch{\"u}re werden m{\"o}gliche Potenziale im Bereich einer effizienten und benutzerzentrierten Software-Entwicklung aufgezeigt.}, language = {de} } @article{BaringhausGaigallThiele2018, author = {Baringhaus, Ludwig and Gaigall, Daniel and Thiele, Jan Philipp}, title = {Statistical inference for L²-distances to uniformity}, series = {Computational Statistics}, volume = {2018}, journal = {Computational Statistics}, number = {33}, publisher = {Springer}, address = {Berlin}, issn = {1613-9658}, doi = {10.1007/s00180-018-0820-0}, pages = {1863 -- 1896}, year = {2018}, abstract = {The paper deals with the asymptotic behaviour of estimators, statistical tests and confidence intervals for L²-distances to uniformity based on the empirical distribution function, the integrated empirical distribution function and the integrated empirical survival function. Approximations of power functions, confidence intervals for the L²-distances and statistical neighbourhood-of-uniformity validation tests are obtained as main applications. The finite sample behaviour of the procedures is illustrated by a simulation study.}, language = {en} } @misc{HilgenstockLangeRiedeletal.2006, author = {Hilgenstock, J{\"o}rg and Lange, Robert and Riedel, Helmut and Ringbeck, Thorsten}, title = {Verfahren und Entfernungsmessvorrichtung zum Bestimmen der Entfernung zwischen einem Objekt und der Vorrichtung : [Offenlegungsschrift / Europ{\"a}ische Patentanmeldung]}, publisher = {Deutsches Patent- und Markenamt / Europ{\"a}isches Patentamt}, address = {M{\"u}nchen / Den Hague}, year = {2006}, language = {de} } @misc{Wahle1989, author = {Wahle, Michael}, title = {Gestaltung von plattenf{\"o}rmigen Hohlprofilen oder wellblechartigen Profilen : Offenlegungsschrift / Europ{\"a}ische Patentschrift}, publisher = {Deutsches Patent- und Markenamt / Europ{\"a}isches Patentamt}, address = {M{\"u}nchen / Den Hague}, pages = {8 S. : graph. Darst.}, year = {1989}, language = {de} } @incollection{Fabo2011, author = {Fabo, Sabine}, title = {Vom tieferen Sinn der Maschen}, series = {A hands-on guide to Fan Scarf Remix ; sample, remix and reknit your own fan scarf message ; Schalalala! ; Version 1.0 ; [Postscript zur Ausstellung CRAFTWERK 2.0. - New Household Tactics for the Popular Crafts, 09/2009-03/2010, J{\"o}nk{\"o}ping County Museum, Sweden]}, booktitle = {A hands-on guide to Fan Scarf Remix ; sample, remix and reknit your own fan scarf message ; Schalalala! ; Version 1.0 ; [Postscript zur Ausstellung CRAFTWERK 2.0. - New Household Tactics for the Popular Crafts, 09/2009-03/2010, J{\"o}nk{\"o}ping County Museum, Sweden]}, number = {(Edition Txet ; 1)}, editor = {Schl{\"o}mer, R{\"u}diger}, publisher = {Eigenverl. des Hrsg.}, address = {Berlin}, pages = {52}, year = {2011}, subject = {Meinungs{\"a}ußerung}, language = {de} } @article{KuperjansEsserMeyeretal.2000, author = {Kuperjans, Isabel and Esser, J. and Meyer, J{\"o}rg and Donner, O.}, title = {Gestaltung und Bewertung von Energieanlagen unter {\"o}kologischen, wirtschaftlichen und technischen Gesichtspunkten}, series = {Umweltwirtschaftsforum : UWF}, volume = {8}, journal = {Umweltwirtschaftsforum : UWF}, number = {3}, issn = {0943-3481}, pages = {53 -- 58}, year = {2000}, language = {de} } @article{AbbasHedwigBalcetal.2023, author = {Abbas, Karim and Hedwig, Lukas and Balc, Nicolae and Bremen, Sebastian}, title = {Advanced FFF of PEEK: Infill strategies and material characteristics for rapid tooling}, series = {Polymers}, volume = {2023}, journal = {Polymers}, number = {15}, publisher = {MDPI}, address = {Basel}, doi = {10.3390/polym15214293}, pages = {Artikel 4293}, year = {2023}, abstract = {Traditional vulcanization mold manufacturing is complex, costly, and under pressure due to shorter product lifecycles and diverse variations. Additive manufacturing using Fused Filament Fabrication and high-performance polymers like PEEK offer a promising future in this industry. This study assesses the compressive strength of various infill structures (honeycomb, grid, triangle, cubic, and gyroid) when considering two distinct build directions (Z, XY) to enhance PEEK's economic and resource efficiency in rapid tooling. A comparison with PETG samples shows the behavior of the infill strategies. Additionally, a proof of concept illustrates the application of a PEEK mold in vulcanization. A peak compressive strength of 135.6 MPa was attained in specimens that were 100\% solid and subjected to thermal post-treatment. This corresponds to a 20\% strength improvement in the Z direction. In terms of time and mechanical properties, the anisotropic grid and isotropic cubic infill have emerged for use in rapid tooling. Furthermore, the study highlights that reducing the layer thickness from 0.15 mm to 0.1 mm can result in a 15\% strength increase. The study unveils the successful utilization of a room-temperature FFF-printed PEEK mold in vulcanization injection molding. The parameters and infill strategies identified in this research enable the resource-efficient FFF printing of PEEK without compromising its strength properties. Using PEEK in rapid tooling allows a cost reduction of up to 70\% in tool production.}, language = {en} } @article{SchoeningBronderWuetal.2017, author = {Sch{\"o}ning, Michael Josef and Bronder, Thomas and Wu, Chunsheng and Scheja, Sabrina and Jessing, Max and Metzger-Boddien, Christoph and Keusgen, Michael and Poghossian, Arshak}, title = {Label-Free DNA Detection with Capacitive Field-Effect Devices—Challenges and Opportunities}, series = {Proceedings}, volume = {1}, journal = {Proceedings}, number = {8}, publisher = {MDPI}, address = {Basel}, issn = {2504-3900}, doi = {10.3390/proceedings1080719}, pages = {Artikel 719}, year = {2017}, abstract = {Field-effect EIS (electrolyte-insulator-semiconductor) sensors modified with a positively charged weak polyelectrolyte layer have been applied for the electrical detection of DNA (deoxyribonucleic acid) immobilization and hybridization by the intrinsic molecular charge. The EIS sensors are able to detect the existence of target DNA amplicons in PCR (polymerase chain reaction) samples and thus, can be used as tool for a quick verification of DNA amplification and the successful PCR process. Due to their miniaturized setup, compatibility with advanced micro- and nanotechnologies, and ability to detect biomolecules by their intrinsic molecular charge, those sensors can serve as possible platform for the development of label-free DNA chips. Possible application fields as well as challenges and limitations will be discussed.}, language = {en} } @article{Gaigall2020, author = {Gaigall, Daniel}, title = {Testing marginal homogeneity of a continuous bivariate distribution with possibly incomplete paired data}, series = {Metrika}, volume = {2020}, journal = {Metrika}, number = {83}, publisher = {Springer}, issn = {1435-926X}, doi = {10.1007/s00184-019-00742-5}, pages = {437 -- 465}, year = {2020}, abstract = {We discuss the testing problem of homogeneity of the marginal distributions of a continuous bivariate distribution based on a paired sample with possibly missing components (missing completely at random). Applying the well-known two-sample Cr{\´a}mer-von-Mises distance to the remaining data, we determine the limiting null distribution of our test statistic in this situation. It is seen that a new resampling approach is appropriate for the approximation of the unknown null distribution. We prove that the resulting test asymptotically reaches the significance level and is consistent. Properties of the test under local alternatives are pointed out as well. Simulations investigate the quality of the approximation and the power of the new approach in the finite sample case. As an illustration we apply the test to real data sets.}, language = {en} } @article{RitzPisarczykSachtlebenetal.2014, author = {Ritz, Thomas and Pisarczyk, Rafael and Sachtleben, Johanna and Leßenich, Nina}, title = {Usability Engineering maßgeschneidert : Modellbaukasten zur Entwicklung gebrauchstauglicher mobiler Software}, series = {Wissenschaft trifft Praxis}, volume = {1}, journal = {Wissenschaft trifft Praxis}, number = {1}, publisher = {Begleitforschung Mittelstand-Digital c/o WIK-Consult GmbH}, address = {Bad Honnef}, issn = {2198-8544 (Print)}, pages = {79 -- 88}, year = {2014}, language = {de} } @article{ScheerKapelyukhRodeetal.2015, author = {Scheer, Nico and Kapelyukh, Yury and Rode, Anja and Oswald, Stefan and Busch, Diana and Mclaughlin, Lesley A. and Lin, De and Henderson, Colin J. and Wolf, C. Roland}, title = {Defining Human Pathways of Drug Metabolism In Vivo through the Development of a Multiple Humanized Mouse Model}, series = {Drug Metabolism and Disposition}, volume = {43}, journal = {Drug Metabolism and Disposition}, number = {11}, publisher = {ASPET}, address = {Bethesda}, issn = {1521-009x}, doi = {10.1124/dmd.115.065656}, pages = {1679 -- 1690}, year = {2015}, language = {en} } @article{RichterBraunsteinWinnardetal.2017, author = {Richter, Charlotte and Braunstein, Bjoern and Winnard, Andrew and Nasser, Mona and Weber, T.}, title = {Human Biomechanical and Cardiopulmonary Responses to Partial Gravity - A Systematic Review}, series = {Frontiers in physiology}, journal = {Frontiers in physiology}, number = {8, article 583}, doi = {10.3389/fphys.2017.00583}, pages = {22 Seiten}, year = {2017}, language = {en} } @article{WallenbornRitz2014, author = {Wallenborn, Ramona and Ritz, Thomas}, title = {Mobilit{\"a}t miteinander teilen : st{\"a}dtisches eCarsharing in einer vernetzten Gesellschaft ; [vernetztes Fahren von morgen]}, series = {Neue Mobilit{\"a}t : das Magazin vom Bundesverband eMobilit{\"a}t}, volume = {5}, journal = {Neue Mobilit{\"a}t : das Magazin vom Bundesverband eMobilit{\"a}t}, number = {14 (Herbstausg.)}, publisher = {Bundesverband eMobilit{\"a}t BEM}, address = {Berlin}, issn = {2191-5636}, pages = {92 -- 95}, year = {2014}, language = {de} } @article{FredebeulKreinSteingroever2014, author = {Fredebeul-Krein, Markus and Steingr{\"o}ver, Markus}, title = {Wholesale broadband access to IPTV in an NGA environment : how to deal with it from a regulatory perspective?}, series = {Telecommunications Policy}, volume = {38}, journal = {Telecommunications Policy}, number = {3}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0308-5961 (Print)}, doi = {doi:10.1016/j.telpol.2013.04.002}, pages = {264 -- 277}, year = {2014}, language = {en} } @article{AugensteinHerbergsKuperjans2006, author = {Augenstein, Eckardt and Herbergs, S. and Kuperjans, Isabel}, title = {TOP-Energy : ein Werkzeug zur Optimierung der Geb{\"a}udeenergieversorgung}, series = {KI : K{\"a}lte, Luft, Klimatechnik}, journal = {KI : K{\"a}lte, Luft, Klimatechnik}, number = {5}, issn = {1865-5432}, pages = {198 -- 201}, year = {2006}, language = {de} } @article{PoghossianWeldenBuniatyanetal.2021, author = {Poghossian, Arshak and Welden, Rene and Buniatyan, Vahe V. and Sch{\"o}ning, Michael Josef}, title = {An Array of On-Chip Integrated, Individually Addressable Capacitive Field-Effect Sensors with Control Gate: Design and Modelling}, series = {Sensors}, volume = {21}, journal = {Sensors}, number = {18}, publisher = {MDPI}, address = {Basel}, issn = {1424-8220}, doi = {10.3390/s21186161}, pages = {17}, year = {2021}, abstract = {The on-chip integration of multiple biochemical sensors based on field-effect electrolyte-insulator-semiconductor capacitors (EISCAP) is challenging due to technological difficulties in realization of electrically isolated EISCAPs on the same Si chip. In this work, we present a new simple design for an array of on-chip integrated, individually electrically addressable EISCAPs with an additional control gate (CG-EISCAP). The existence of the CG enables an addressable activation or deactivation of on-chip integrated individual CG-EISCAPs by simple electrical switching the CG of each sensor in various setups, and makes the new design capable for multianalyte detection without cross-talk effects between the sensors in the array. The new designed CG-EISCAP chip was modelled in so-called floating/short-circuited and floating/capacitively-coupled setups, and the corresponding electrical equivalent circuits were developed. In addition, the capacitance-voltage curves of the CG-EISCAP chip in different setups were simulated and compared with that of a single EISCAP sensor. Moreover, the sensitivity of the CG-EISCAP chip to surface potential changes induced by biochemical reactions was simulated and an impact of different parameters, such as gate voltage, insulator thickness and doping concentration in Si, on the sensitivity has been discussed.}, language = {en} } @article{VahidpourGuthmanArreolaetal.2022, author = {Vahidpour, Farnoosh and Guthman, Eric and Arreola, Julia and Alghazali, Yousef H. M. and Wagner, Torsten and Sch{\"o}ning, Michael Josef}, title = {Assessment of Various Process Parameters for Optimized Sterilization Conditions Using a Multi-Sensing Platform}, series = {Foods}, volume = {11}, journal = {Foods}, number = {5}, publisher = {MDPI}, address = {Basel}, issn = {2304-8158}, doi = {10.3390/foods11050660}, pages = {Artikel 660}, year = {2022}, abstract = {In this study, an online multi-sensing platform was engineered to simultaneously evaluate various process parameters of food package sterilization using gaseous hydrogen peroxide (H₂O₂). The platform enabled the validation of critical aseptic parameters. In parallel, one series of microbiological count reduction tests was performed using highly resistant spores of B. atrophaeus DSM 675 to act as the reference method for sterility validation. By means of the multi-sensing platform together with microbiological tests, we examined sterilization process parameters to define the most effective conditions with regards to the highest spore kill rate necessary for aseptic packaging. As these parameters are mutually associated, a correlation between different factors was elaborated. The resulting correlation indicated the need for specific conditions regarding the applied H₂O₂ gas temperature, the gas flow and concentration, the relative humidity and the exposure time. Finally, the novel multi-sensing platform together with the mobile electronic readout setup allowed for the online and on-site monitoring of the sterilization process, selecting the best conditions for sterility and, at the same time, reducing the use of the time-consuming and costly microbiological tests that are currently used in the food package industry.}, language = {en} } @article{PoghossianKarschuckWagneretal.2022, author = {Poghossian, Arshak and Karschuck, Tobias and Wagner, Patrick and Sch{\"o}ning, Michael Josef}, title = {Field-Effect Capacitors Decorated with Ligand-Stabilized Gold Nanoparticles: Modeling and Experiments}, series = {Biosensors}, volume = {12}, journal = {Biosensors}, number = {5}, publisher = {MDPI}, address = {Basel}, issn = {2079-6374}, doi = {10.3390/bios12050334}, pages = {Artikel 334}, year = {2022}, abstract = {Nanoparticles are recognized as highly attractive tunable materials for designing field-effect biosensors with enhanced performance. In this work, we present a theoretical model for electrolyte-insulator-semiconductor capacitors (EISCAP) decorated with ligand-stabilized charged gold nanoparticles. The charged AuNPs are taken into account as additional, nanometer-sized local gates. The capacitance-voltage (C-V) curves and constant-capacitance (ConCap) signals of the AuNP-decorated EISCAPs have been simulated. The impact of the AuNP coverage on the shift of the C-V curves and the ConCap signals was also studied experimentally on Al-p-Si-SiO₂ EISCAPs decorated with positively charged aminooctanethiol-capped AuNPs. In addition, the surface of the EISCAPs, modified with AuNPs, was characterized by scanning electron microscopy for different immobilization times of the nanoparticles.}, language = {en} }