TY - CHAP
AU - Gerick, Julia
AU - Eickelmann, Birgit
AU - Bos, Wilfried
ED - Heinzel, Friederike
ED - Koch, Katja
ID - 28626
T2 - Individualisierung im Grundschulunterricht: Anspruch, Realisierung und Risiken
TI - Zum Stellenwert neuer Technologien für die individuelle Förderung im Deutschunterricht in der Grundschule
VL - 21
ER -
TY - JOUR
AU - Eickelmann, Birgit
ID - 28627
IS - 1
JF - Tertium Comparationis. Journal für International und Interkulturell Vergleichende Erziehungswissenschaft
TI - Computational Thinking als internationales Zusatzmodul zu ICILS 2018 – Konzeptionierung und Perspektiven für die empirische Bildungsforschung
VL - 23
ER -
TY - JOUR
AU - Eickelmann, Birgit
ID - 28628
IS - 14
JF - Neue Deutsche Schule. Die Zeitschrift der Bildungsgewerkschaft
TI - Digitalisierung. Neue Herausforderungen für Schulen und Schulaufsicht
VL - 9
ER -
TY - JOUR
AU - Eickelmann, Birgit
ID - 28629
IS - 5
JF - Zeitschrift Schul-Management
TI - Digitale Kompetenzen im internationalen Vergleich. Welche Impulse geben die Studien ICILS 2013 und ICILS 2018?
VL - 48
ER -
TY - JOUR
AU - Eickelmann, Birgit
ID - 28630
IS - 79
JF - Basisartikel im Heft 'Digitalisierung in der Schule'. Lernende Schule
TI - Lernende Schulen in der digitalen Welt – Herausforderungen und Perspektiven
VL - 20
ER -
TY - BOOK
AU - Eickelmann, Birgit
ID - 28631
TI - Kompetenzen in der digitalen Welt. Konzepte und Perspektiven
ER -
TY - CHAP
AU - Eickelmann, Birgit
AU - Gerick, Julia
ED - Scheiter, Katharina
ED - Riecke-Baulecke, Thomas
ID - 28633
T2 - Lehren und Lernen mit digitalen Medien. Strategien, internationale Trends und pädagogische Orientierungen
TI - Lehren und Lernen mit digitalen Medien - Zielsetzungen, Rahmenbedingungen und Implikationen für die Schulentwicklung
VL - 4
ER -
TY - CHAP
AU - Eickelmann, Birgit
ED - Nixdorf MuseumsForum, Heinz
ID - 28650
T2 - Bildung im Digitalen Zeitalter - Bilanz und Perspektiven
TI - Computer Literacy im schulischen Kontext – eine internationale Perspektive
ER -
TY - JOUR
AU - Eickelmann, Birgit
AU - Drossel, Kerstin
ID - 28651
JF - Medienimpulse
TI - Computer- und informationsbezogene Kompetenzen in der IEA-Studie ICILS 2013 und der Zusammenhang mit der Lesekompetenz
VL - 4
ER -
TY - DATA
AU - Gerick, Julia
AU - Eickelmann, Birgit
ID - 28652
TI - Abschlussbericht im Rahmen der wissenschaftlichen Begleitung der Evaluation des Projekts „Lernen mit digitalen Medien“ in Schleswig-Holstein
ER -
TY - JOUR
AU - Gerick, Julia
AU - Eickelmann, Birgit
AU - Rolff, Hans-Günter
ID - 28653
IS - 3
JF - Journal für Schulentwicklung
TI - Digitale Medien in Schule und Unterricht – Herausforderungen für die Schulentwicklung
VL - 21
ER -
TY - JOUR
AU - Gerick, Julia
AU - Eickelmann, Birgit
AU - Ramm, Gesa
AU - Kühn, Thore-Olaf
ID - 28655
IS - 3
JF - Journal für Schulentwicklung
TI - Gelingensbedingungen für den Transfer schulischer Innovationen mit digitalen Medien. Ergebnisse aus einem Modellprojekt
VL - 21
ER -
TY - JOUR
AU - Eickelmann, Birgit
ID - 28656
IS - 3
JF - Journal für Schulentwicklung
TI - Schulische Medienkonzepte als Instrument der Schulentwicklung
VL - 21
ER -
TY - GEN
ED - Gerick, Julia
ED - Eickelmann, Birgit
ED - Kühn, Thore-Olaf
ID - 28658
T2 - Journal für Schulentwicklung
TI - Digitale Medien in Schule und Unterricht. Herausforderungen für die Schulentwicklung [Themenheft]
ER -
TY - CHAP
AU - Eickelmann, Birgit
AU - Lorenz, Ramona
AU - Endberg, Manuela
ED - Lorenz, Ramona
ED - Bos, Wilfried
ED - Endberg, Manuela
ED - Eickelmann, Birgit
ED - Grafe, Silke
ED - Vahrenhold, Jan
ID - 28659
T2 - Schule digital – der Länderindikator 2017. Schulische Medienbildung in der Sekundarstufe I mit besonderem Fokus auf MINT-Fächer im Bundesländervergleich und Trends von 2015 bis 2017
TI - Lernaktivitäten mit digitalen Medien im Fachunterricht der Sekundarstufe I im Bundesländervergleich mit besonderem Fokus auf MINT-Fächer
ER -
TY - CHAP
AU - Lorenz, Ramona
AU - Endberg, Manuela
AU - Eickelmann, Birgit
ED - Lorenz, Ramona
ED - Bos, Wilfried
ED - Endberg, Manuela
ED - Eickelmann, Birgit
ED - Grafe, Silke
ED - Vahrenhold, Jan
ID - 28663
T2 - Schule digital – der Länderindikator 2017. Schulische Medienbildung in der Sekundarstufe I mit besonderem Fokus auf MINT-Fächer im Bundesländervergleich und Trends von 2015 bis 2017
TI - Unterrichtliche Nutzung digitaler Medien durch Lehrpersonen in der Sekundarstufe I im Bundesländervergleich und im Trend von 2015 bis 2017
ER -
TY - BOOK
ED - Lorenz, Ramona
ED - Bos, Wilfried
ED - Endberg, Manuela
ED - Eickelmann, Birgit
ED - Grafe, Silke
ED - Vahrenhold, Jan
ID - 28665
TI - Schule digital – der Länderindikator 2017. Schulische Medienbildung in der Sekundarstufe I mit besonderem Fokus auf MINT-Fächer im Bundesländervergleich und Trends von 2015 bis 2017
ER -
TY - JOUR
AU - Gerick, Julia
AU - Eickelmann, Birgit
AU - Bos, Wilfried
ID - 28669
IS - 1
JF - Large-scale Assessments in Education
SN - 2196-0739
TI - School-level predictors for the use of ICT in schools and students’ CIL in international comparison
VL - 5
ER -
TY - JOUR
AU - Drossel, Kerstin
AU - Eickelmann, Birgit
AU - Gerick, Julia
ID - 28670
IS - 2
JF - Education and Information Technologies
SN - 1360-2357
TI - Predictors of teachers’ use of ICT in school – the relevance of school characteristics, teachers’ attitudes and teacher collaboration
VL - 22
ER -
TY - JOUR
AU - Eickelmann, Birgit
AU - Gerick, Julia
AU - Koop, Christian
ID - 28671
IS - 4
JF - Education and Information Technologies
SN - 1360-2357
TI - ICT use in mathematics lessons and the mathematics achievement of secondary school students by international comparison: Which role do school level factors play?
VL - 22
ER -
TY - JOUR
AB - In the debate on the integration of information and communication technologies (ICT) into schools, the beliefs and attitudes of teachers towards ICT in teaching and learning have always been regarded as central criteria for successful implementation of new technologies. In this context, a study in 2013 by the International Association for the Evaluation of Educational Achievement, IEA, provided insights into teachers’ beliefs regarding ICT and showed that perceptions of the pedagogical advantages of technologies differ between countries. With regard to this finding, this paper seeks to determine whether there is a typology of teachers with different attitudes towards the potential of ICTs for learning. This question is addressed by conducting latent class analyses on a sample of teacher data from three European countries – the Czech Republic, Germany and Norway. Furthermore, the paper investigates how the use of computers by teachers varies between the groups to which these teachers can be assigned. In doing so the research reported at hand connects, arguably for the first time, representative data on teacher typologies of attitudes towards and beliefs about ICT in teaching and learning with data on computer use in schools.
AU - Eickelmann, Birgit
AU - Vennemann, Mario
ID - 28672
IS - 6
JF - European Educational Research Journal
SN - 1474-9041
TI - Teachers‘ attitudes and beliefs regarding ICT in teaching and learning in European countries
VL - 16
ER -
TY - JOUR
AB - The International Computer and Information Literacy Study (ICILS 2013) provides, for the first time, information about students’ computer and information literacy (CIL), as well as its acquisition, based on a computer-based test for students and background questionnaires. Among the 21 education systems that participated in ICILS 2013, there are 12 European countries, making secondary comparative in-depth analyses at a European level particularly fruitful. Accordingly, while the four articles in this Special Issue each deal with different topics and adopt different methodologies, they all share a common element and provide European comparisons in the ICILS context. The editorial in turn outlines the aim of the ICILS 2013 study and its relevance for European education research as well as its contextual framework and approach to the measurement of students’ CIL. The potential and challenges of such large-scale assessment studies are also discussed.
AU - Gerick, Julia
AU - Eickelmann, Birgit
AU - Bos, Wilfried
ID - 28673
IS - 6
JF - European Educational Research Journal
SN - 1474-9041
TI - The international computer and information literacy study from a European perspective: Introduction to the Special Issue
VL - 16
ER -
TY - CHAP
AU - Drossel, Kerstin
AU - Eickelmann, Birgit
ED - Tatnall, Arthur
ED - Webb, Mary
ID - 28675
SN - 1868-4238
T2 - Tomorrow's learning: involving everyone. Learning with and about technologies and computing
TI - The Use of Tablets in Secondary Schools and Its Relationship with Computer Literacy
ER -
TY - CHAP
AU - Eickelmann, Birgit
ED - Gapski, Harald
ED - Oberle, Monika
ED - Staufer, Walter
ID - 28676
T2 - Medienkompetenz. Herausforderung für Politik, politische Bildung und Medienbildung
TI - Schulische Medienkompetenzförderung
ER -
TY - JOUR
AU - Wiesener, Markus
AU - Peters, K.
AU - Taube, Alexander
AU - Keller, Adrian
AU - Hoyer, Kay-Peter
AU - Niendorf, Thomas
AU - Grundmeier, Guido
ID - 24109
JF - Materials and Corrosion
SN - 0947-5117
TI - Corrosion properties of bioresorbable FeMn-Ag alloys prepared by selective laser melting
ER -
TY - CHAP
AU - Taube, Alexander
AU - Reschetnik, Wadim
AU - Pauli, Lorenz
AU - Hoyer, Kay-Peter
AU - Kullmer, Gunter
AU - Schaper, Mirko
ID - 24117
SN - 978-3-658-17779-9
T2 - Additive Fertigung von Bauteilen und Strukturen
TI - Numerische und mechanische Untersuchung additiv gefertigter TiAl6V4 Gitterstrukturen
ER -
TY - CONF
AU - Brüggemann, Jan-Peter
AU - Reschetnik, Wadim
AU - Kullmer, Gunter
AU - Richard, Hans Albert
AU - Aydinöz, Mehmet Esat
AU - Hoyer, Kay-Peter
AU - Schaper, Mirko
ID - 24119
T2 - DVM - Tagung - Bruchmechanische Werkstoff- Und Bauteilbewertung: Beanspruchungsanalyse, Prüfmethoden und Anwendungen
TI - Optimierung der Werkstoffeigenschaften von selektiv lasergeschmolzenem Alumi-nium 7075,
ER -
TY - JOUR
AU - Ramaswamy, Arunselvan
AU - Bhatnagar, Shalabh
ID - 24152
IS - 5
JF - IEEE Transactions on Automatic Control
TI - Analysis of gradient descent methods with nondiminishing bounded errors
VL - 63
ER -
TY - JOUR
AU - Ramaswamy, Arunselvan
AU - Bhatnagar, Shalabh
ID - 24153
IS - 3
JF - Mathematics of Operations Research
TI - A generalization of the Borkar-Meyn theorem for stochastic recursive inclusions
VL - 42
ER -
TY - CONF
AB - Wireless Sensor Networks (WSN) consist of large number of distributed sensors nodes which are able to sense,
read and transmit physical measurements such as temperature, humidity and pressure over wireless
communication links. WSN nodes are often powered by batteries or can use energy harvesting methods from
environmental energy sources. One of the major challenges in the design of WSN nodes is the high level of
power dissipation for sensing, processing and communication. Operating at low-power levels reduces
maintenance effort for periodic battery replacement or can even provide unlimited operation by means of energy
harvesting. Since the communication process is the most power hungry process, ultra-low-power wireless
communication is an enabler for network applications such as cyber-physical systems, Internet-of-Things and
Industry 4.0 etc. Our research is based on Wake-up Receivers (WuR) architectures. Each of the WSN nodes contains a WuR
which is always-on, listening for a wake-up signal from other nodes or the base station, and activating the node
only when a wake-up signal is detected. By this scheme the communication with the base station becomes
asynchronous, real-time and on-demand. Due to the centrally-coordinated, collision-free communication such
WSNs can be scaled to very large node numbers. Designing always-on WuR at ultra-low-power dissipation
levels makes the WSN nodes very energy efficient because they are only activated when a wake-up-signal is
received. Additionally, the WuR must be robust to noise and co-channel interference in order to operate safely
in parallel to other wireless systems. We investigate a novel radio architecture for the WuR using Linear Frequency Modulation (LFM) and passive
analog signal processing by means of a Surface Acoustic Wave (SAW) correlator. The base station sends the
required WSN node ID using LFM signal at 2.4 GHz. The node ID is encoded as chirp up or chirp down signal
with chirping bandwidth of 80MHz. On the receiver side, the SAW chirp correlator demodulates the received
LFM signal while suppressing other wireless signals. In order to achieve proper demodulation and high Signal-to-Noise Ratio (SNR), the SAW correlator is designed to behave like a Matched Filter (MF) which boosts up the
SNR. After that the signal is amplified/detected by baseband amplifier stage, it is compared with the unique ID
of the node, and the node's Wake up signal is asserted accordingly. Since the SAW correlator operates
completely passive, the WuR can be implemented in a very energy-efficient way, without the need to use power
hungry device such as Low Noise Amplifiers (LNA) or down conversion Local Oscillators (LO)
AU - Abughannam, Saed
AU - Scheytt, Christoph
ID - 24215
T2 - Kleinheubacher Tagung 2017
TI - Low-Power wake up receiver based on Surface Acoustic Wave Correlator
ER -
TY - JOUR
AB - In this article mixed analog/digital signal processing techniques based on parallel spread-spectrum sequencing (PSSS) and radio frequency (RF) carrier synchronization for ultra-broadband wireless communication are investigated on system and circuit level.
AU - Scheytt, Christoph
AU - Javed, Abdul Rehman
AU - Bammidi, Eswara Rao
AU - KrishneGowda, Karthik
AU - Kallfass, Ingmar
AU - Kraemer, Rolf
ID - 24216
IS - 9-10
JF - Frequenz* Journal of RF-Engineering and Telecommunications
TI - 100 Gbps Wireless System and Circuit Design Using Parallel Spread-Spectrum Sequencing
VL - 71
ER -
TY - CONF
AB - Parallel Sequence Spread Spectrum (PSSS) is a physical layer (PHY) baseband technology that is well suited for mixed-signal transceiver implementation for high data rate wireless communication systems. Mixed signal baseband realization allows for easier implementation of the channel equalization function and eliminates the need for high speed data converters. System design and architecture of a mixed signal baseband processor for 100 Gbps wireless communication is described that reduces the implementation complexity and results in a consequent reduction in power dissipation and chip area. An ultra-broadband analog correlator consisting of a four-quadrant multiplier and a fast resettable integrator using only NPN transistors was designed, fabricated, and measured. The correlator circuit is the core component of the receiver baseband. To the best knowledge of the authors, it is the fastest correlator circuit published so far.
AU - Javed, Abdul Rehman
AU - Scheytt, Christoph
AU - Karthik, KrishneGowda
AU - Kramer, Roland
ID - 24217
SN - 978-1-5090-3844-2
T2 - IEEE EUROCON 2017-17th International Conference on Smart Technologies
TI - System design of a mixed signal PSSS transdeiver using a linear ultra-broadband analog correlator for the receiver baseband designed in 130nm SiGe BiCMOS technology
ER -
TY - GEN
AB - Die Erfindung betrifft eine Folge-Halte-Schaltung zum Konvertieren eines analogen Eingangssignals in ein digitales Ausgangssignal mit einer Haltekapazitätseinheit, mit einer Spannungsverstärkereinheit enthaltend einen Eingang, an dem ein analoges Eingangsspannungssignal anlegbar ist, und enthaltend einen Ausgang, der mit der Haltekapazitätseinheit verbunden ist, mit einer Arbeitspunkteinstelleinheit zur Steuerung der Spannungsverstärkereinheit, wobei an einem Eingang der Arbeitspunkteinstelleinheit ein Steuersignal anliegt, so dass in einem Folgebetrieb der Folge-Halte-Schaltung eine an dem Ausgang der Spannungsverstärkereinheit anliegendes Ausgangssignal einen an den Eingang der Spannungsverstärkereinheit anliegendes Eingangssignal folgt, und in einem Haltebetrieb der Folge-Halte-Schaltung das Ausgangssignal der Spannungsverstärkereinheit konstant ist, mit einer Taktsignalquelle zur Erzeugung einer Folge von einem Eingang der Arbeitspunkteinstelleinheit anliegenden Taktsignalen, wobei die Arbeitspunkteinstelleinheit elektrooptische Mittel zur Erzeugung des Steuersignals aufweist, dass die Taktsignalquelle als eine optische Taktsignalquelle ausgebildet ist, so dass als Taktsignal eine optische Impulsfolge mit hohen und tiefen Taktsignalen an den Eingang der Arbeitspunkteinstelleinheit anliegt.
AU - Scheytt, Christoph
ID - 24218
TI - Folge-Halte-Schaltung
ER -
TY - CONF
AB - In this paper we present theoretical, simulated and measured data for a reader to tag communication RFID system at 5.8 GHz. First a theoretical link budget analysis for a reader to tag architecture is shown for a wireless industrial application at 1m distance. This includes a power budget of the passively powered transponder. The received power level of the backscattered data for the theoretical link budget is -52:5 dBm. For the first setup slot antennas are developed and measured in the anechoic chamber. The measured gain is 4.0 dB. The power of the backscatter data in setup 1 is -74:8 dBm. This corresponds to the theoretical link budget since, all losses such as cable or lower antenna gain are taken into account. Setup 2 is upgraded on the reader side with horn antennas. At 5.8 GHz, the gain reaches the value of 10.8 dB. The second setup shows improvement in the receiving backscattered power to a value of -62:4 dBm. Furthermore, as a solution to detect those transponders not presented in the main slope of the antenna, a steerable beam is introduced by means of a Rotman lens. On the topic of the passive transponder, different harvesting topologies at 5.8 GHz are investigated, and the efficiency simulation of the harvesting circuitry has been performed. The simulated efficiency of the implemented technique is 68 %.
AU - Kuhn, Peter
AU - Haddadian, Sanaz
AU - Meyer, Frederic
AU - Hoffmann, Marc
AU - Grabmaier, Anton
AU - Scheytt, Christoph
AU - Kaiser, Thomas
ID - 24219
SN - 978-3-8007-4428-2
T2 - Smart SysTech 2017; European Conference on Smart Objects, Systems and Technologies
TI - SHF RFID System for Automatic Process Optimization with Intelligent Tools
ER -
TY - CONF
AU - Adelt, Peer
AU - Koppelmann, Bastian
AU - Müller, Wolfgang
AU - Mueller-Gritschneder, Daniel
AU - Kleinjohann, Bernd
AU - Scheytt, Christoph
ID - 24220
SN - 978-3-942647-88-5
T2 - Tagungsband des Wissenschaftsforums Intelligente Technische Systeme
TI - Automatisierte Fehlerinjektion zur Entwicklung sicherer Mikrocontrolleranwendungen auf der Basis virtueller Plattformen
ER -
TY - BOOK
AB - Das Wissenschaftsforum Intelligente Technische Systeme (WInTeSys) legt am 11. und 12. Mai 2017 in Paderborn den Schwerpunkt auf die Grundlagen und die Entwicklung intelligenter technischer Systeme im Kontext Industrie 4.0. Etwa 40 begutachtete hochkarätige Beiträge geben einen Überblick über Forschungsfelder, Technologien und Anwendungen. Die Veranstaltung bietet den Teilnehmerinnen und Teilnehmern eine ausgezeichnete Bühne für den Erfahrungsaustausch auf dem Weg in die Digitalisierung von Produkten und Produktionssystemen. »Das Besondere ist der Dialog von Hochschulforschung und industrieller Entwicklung, also das Aufeinandertreffen von »Science-Push« und »Application-Pull«. Die Beiträge spiegeln die hervorragende Vernetzung in der Region OWL und darüber hinaus wider«, sagt Veranstalter Prof. Jürgen Gausemeier (Heinz Nixdorf Institut, Universität Paderborn).
AU - Gausemeier, Jürgen
AU - Bodden, Eric
AU - Dressler, Falko
AU - Dumitrescu, Roman
AU - Meyer auf der Heide, Friedhelm
AU - Scheytt, Christoph
AU - Trächtler, Ansgar
ID - 24221
SN - 978-3-942647-88-5
TI - Wissenschaftsforum Intelligente Technische Systeme (WInTeSys)
VL - 369
ER -
TY - CONF
AB - This paper focuses on the design of a high
efficiency cross-connected differential drive rectifier for
next-generation passive RFID tags. To provide a
realistic estimation of the transponders’power and
efficiency requirements at 5.8 GHz, detailed
link/power-budget analysis for various blocks of the tag
chip is carried out. From link budget analysis realistic
RF power levels are obtained and a rectifier with high
conversion efficiency at low power levels is designed.
Simulations based on a commercial 65nm CMOS
technology investigate the suitability of the harvesting
circuit for 5.8 GHz RFID tags.
AU - Haddadian, Sanaz
AU - Scheytt, Christoph
AU - Kramer, Roland
ID - 24222
T2 - ANALOG 2017; 16th ITG/GMM-Symposium
TI - Energy Harvesting Analysis for Next Generation Passive RFID Tags
ER -
TY - CONF
AB - This paper presents the design flow of using
sampling technique for fault injection on sche-
matic level. The parameters used in the docu-
ment to calculate the likelihood could be modi-
fied by using more realistic data from the fab.
With the help of the fault simulator, the whole
design flow of the fault effect simulation can be
realized automatically.
AU - Wu, Liang
AU - Abughannam, Saed
AU - Müller, Wolfgang
AU - Scheytt, Christoph
AU - Ecker, Wolfgang
ID - 24223
T2 - 2nd Workshop on Resiliency in Embedded Electronic Systems (REES)
TI - SPICE-Level Fault Injection with Likelihood Weighted Random Sampling - A Case Study
ER -
TY - CONF
AU - Adelt, Peer
AU - Koppelmann, Bastian
AU - Müller, Wolfgang
AU - Kleinjohann, Bernd
AU - Scheytt, Christoph
ID - 24224
T2 - Design Automation and Testing in Europe (DATE), University Booth Interactive Presentation
TI - ANALISA - A Tool for Static Instruction Set Analysis
ER -
TY - CONF
AU - Adelt, Peer
AU - Koppelmann, Bastian
AU - Müller, Wolfgang
AU - Kleinjohann, Bernd
AU - Scheytt, Christoph
ID - 24225
T2 - 2nd Workshop on Resiliency in Embedded Electronic Systems (REES)
TI - An Automatic Injection Framework for Safety Assessements of Embedded Software Binaries
ER -
TY - JOUR
AB - This work describes an electrical interferometer for contactless permittivity measurements working at 120 GHz. It was fabricated in a 130 nm SiGe process featuring an ft and fmax of 240 and 330 GHz. The on-chip system contains a 120 GHz VCO with a tuning range of 7 GHz featuring a divide-by-64 circuit to enable external PLL operation. The subsequent buffer provides 7 dBm of output power at 120 GHz. Additionally, the IC contains high-precision and high-resolution phase shifters based on a slow-wave transmission line approach with digital control for direct readout ability. A 120 GHz LNA with 17 dB gain and a power detector to provide DC output signals were realized on chip. It enables sample emulation capability by phase shift inducement in the measurement as well as a reference transmission line. In terms of phase detection, the system shows a sensitivity of 907.36 MHz/°.
AU - Wessel, Jan
AU - Schmalz, Klaus
AU - Scheytt, Christoph
AU - Kissinger, Dietmar
ID - 24227
IS - 2
JF - IEEE Microwave and Wireless Components Letters
TI - A 120-GHz Electrical Interferometer for Contactless Permittivity Measurements With Direct Digital Read-Out
VL - 27
ER -
TY - JOUR
AU - Krebs, Benjamin
AU - Wehner, Marius
AU - Kabst, Rüdiger
ID - 24378
JF - Personalmagazin
TI - Wer hat hier das Sagen?
VL - 2
ER -
TY - JOUR
AU - Krebs, Benjamin
AU - Wehner, Marius
AU - Kabst, Rüdiger
ID - 24379
JF - Personalmagazin
TI - Nordeuropa hat´s nicht nötig
VL - 2
ER -
TY - JOUR
AU - Rauterberg, Hannah
AU - Krebs, Benjamin
ID - 24380
JF - Personalführung
TI - Cranet Survey 2015/2016 - Stand der HR-Digitalisierung.
VL - 5
ER -
TY - CONF
AB - Through this study, we introduce the idea of applying scheduling techniques to allocate spatial resources that are shared among multiple robots moving in a static environment and having temporal constraints on the arrival time to destinations. To illustrate this idea, we present an exemplified algorithm that plans and assigns a motion path to each robot. The considered problem is particularly challenging because: (i) the robots share the same environment and thus the planner must take into account overlapping paths which cannot happen at the same time; (ii) there are time deadlines thus the planner must deal with temporal constraints; (iii) new requests arrive without a priori knowledge thus the planner must be able to add new paths online and adjust old plans; (iv) the robot motion is subject to noise thus the planner must be reactive to adapt to online changes. We showcase the functioning of the proposed algorithm through a set of agent-based simulations.
AU - Khaluf, Yara
AU - Markarian, Christine
AU - Simoens, Pieter
AU - Reina, Andreagiovanni
ID - 24398
SN - 0302-9743
T2 - International Conference on Practical Applications of Agents and Multi-Agent Systems (PAAMS 2017)
TI - Scheduling Access to Shared Space in Multi-robot Systems
ER -
TY - JOUR
AU - Moritzer, Elmar
AU - Hopp, Matthias
ID - 24523
JF - Welding in the World
SN - 0043-2288
TI - Bonding of wood-plastic composites (WPC)—material and surface modification for special applications
ER -
TY - CONF
AU - Moritzer, Elmar
AU - Hopp, Matthias
ID - 24529
T2 - 75th Annual Technical Conference of the Society of Plastics Engineers (ANTEC)
TI - Bonding of Plastic Parts with Dispersion Adhesives – Film Formation via Diffusion Processes
ER -
TY - JOUR
AU - Zimmermann, Steffen
AU - Herrmann, Philipp
AU - Kundisch, Dennis
AU - Nault, Barrie
ID - 2463
JF - Information Systems Research
TI - Decomposing the Variance of Consumer Ratings and the Impact on Price and Demand
ER -
TY - JOUR
AU - Philipp, Matthias
AU - Schumm, Gregor
AU - Peesel, Ron-Hendrik
AU - Walmsley, Timothy G.
AU - Atkins, Martin J.
AU - Schlosser, Florian
AU - Hesselbach, Jens
ID - 24636
JF - Energy
SN - 0360-5442
TI - Optimal energy supply structures for industrial food processing sites in different countries considering energy transitions
ER -
TY - JOUR
AU - Schumm, G.
AU - Philipp, M.
AU - Schlosser, Florian
AU - Hesselbach, J.
AU - Walmsley, T. G.
AU - Atkins, M. J.
ID - 24637
JF - Energy Efficiency
SN - 1570-646X
TI - Hybrid heating system for increased energy efficiency and flexible control of low temperature heat
ER -
TY - JOUR
AU - Kundisch, Dennis
AU - von Rechenberg, Tobias
ID - 2464
IS - 4
JF - Business & Information Systems Engineering
TI - Does the Framing of Progress Towards Virtual Rewards Matter? Empirical Evidence from an Online Community
VL - 59
ER -
TY - JOUR
AU - Meier, Christian
AU - Kundisch, Dennis
AU - Willeke, Jochen
ID - 2465
IS - 2
JF - Business & Information Systems Engineering
TI - Is it Worth the Effort? - A Decision Model to Evaluate Resource Interactions in IS Project Portfolios
VL - 59
ER -
TY - JOUR
AU - Matthias, Philipp
AU - Schlosser, Florian
AU - Hechelmann, Ron-Hendrik
AU - Schumm, Gregor
AU - Holzhammer, Uwe
ID - 24675
JF - BWK Energie-Fachmagazin
TI - Sektorkopplung Prozesswärme / Strom in der deutschen Industrie. Integration der erneuerbaren Energien in den Wärmesektor.
VL - 70
ER -
TY - GEN
ED - Moritzer, Elmar
ED - Budde, Christopher
ED - Hüttner, Matthias
ED - Krassmann, Dimitri
ID - 25739
TI - Entwicklung einer neuartigen Fügetechnik für Organoblech-Hybridverbindungen
ER -
TY - GEN
AU - Dolzhenko, Irina
AU - Rumlich, Dominik
ID - 25846
TI - Понять, как они тикают [Verstehen, wie sie ticken]. Interview on CLIL conducted by Ирина Долженко [Irina Dolzhenko] on behalf of sib.fm
ER -
TY - JOUR
AU - Stefszky, Michael
AU - Ricken, R.
AU - Eigner, Christof
AU - Quiring, V.
AU - Herrmann, Harald
AU - Silberhorn, Christine
ID - 26040
JF - Physical Review Applied
SN - 2331-7019
TI - Waveguide Cavity Resonator as a Source of Optical Squeezing
ER -
TY - JOUR
AU - Luo, Kai Hong
AU - Herrmann, Harald
AU - Silberhorn, Christine
ID - 26058
JF - Quantum Science and Technology
SN - 2058-9565
TI - Temporal correlations of spectrally narrowband photon pair sources
ER -
TY - JOUR
AU - Rütz, Helge
AU - Luo, Kai Hong
AU - Suche, Hubertus
AU - Silberhorn, Christine
ID - 26059
JF - Physical Review Applied
SN - 2331-7019
TI - Quantum Frequency Conversion between Infrared and Ultraviolet
ER -
TY - CHAP
AB - Selective Laser Sintering (SLS) is an Additive Manufacturing technology, which allows the production of functional polymer parts. Conventionally mainly Nylon 12 (PA 12), Polyamide 11 (PA 11), glass- or aluminum filled materials enable rapid prototyping during the product development process. Those materials do not always meet the requirements for direct production of functional parts by laser sintering. For Direct Manufacturing of functional parts out of required materials and in high quality, the laser sintering process and the material palette needs to be further developed. During this research a laser sintering test equipment for material qualification has been built up. The forthcomings are an optimized software solution, an innovative optical system, an alternative powder coating system and an improved temperature control. The functionality of the test equipment is proved with the standard material PA2200 and two new laser-sintering-materials, Nylon 6 (PA 6) and Polyamide 613 (PA 613), are investigated. The process parameters are derived and mechanical properties are determined by tensile tests.
AU - Lohn, Johannes
AU - Schmid, Hans-Joachim
ID - 26104
T2 - Rapid.Tech – International Trade Show & Conference for Additive Manufacturing
TI - Aufbau einer Lasersinter-Versuchsanlage und Verarbeitung neuer Materialien am Beispiel von Polyamid 6 und Polyamid 613
ER -
TY - JOUR
AB - We study the variation of the adhesion forces between wet TiO2 nanoparticles as a function of their size and the ambient relative humidity. Combining all-atom molecular dynamics and capillary simulations we demonstrate that the linear scaling of the interparticle forces with the particle diameter, well established for microscopic and macroscopic particles, can be extended down to diameters of a few nm. At this size scale, however, the molecular nature of the water adsorbates dictates the adhesion forces both via solvation effects and influencing parameters of analytical capillary models such as the equilibrium particle–particle separation distance and the water/particle contact angle. Moreover, the water surface tension becomes considerably larger than the macroscopic bulk value due to combined effects of thin-film confinement and tight curvature, in a way that strongly depends on humidity and particle size. Taking these effects into proper account, classical capillary equations can be used to predict the interparticle forces even of the smallest particles considered here (4 nm), although the circular approximation fails to reproduce the distance at which the water meniscus breaks. Finally, the transition between the dominating effects at the nanoscopic scale and conventional capillary theory valid at microscopic size scales can be only rationalized if the presence of roughness asperities on the surface of the large particles is explicitly taken into account.
AU - Laube, Jens
AU - Dörmann, Michael
AU - Schmid, Hans-Joachim
AU - Mädler, Lutz
AU - Colombi Ciacchi, Lucio
ID - 26106
JF - The Journal of Physical Chemistry C
SN - 1932-7447
TI - Dependencies of the Adhesion Forces between TiO2 Nanoparticles on Size and Ambient Humidity
ER -
TY - JOUR
AB - Capillary forces are very important considering the handling of powders as they, in general, exceed other adhesion forces. These capillary forces are dependent on several different parameters. Especially the distance between the particles is an important parameter. For example, in moving bulk solids a large variety of distances between particles will occur. Therefore, the distance-dependence of capillary bridges was investigated with a numerical simulation method, assuming thermodynamic equilibrium which is attained very fast for small particles. This method uses the Kelvin equation and the Young-Laplace equation to calculate numerically the shape of the capillary bridge without any assumption regarding the shape. The force is eventually derived from the meniscus shape.
The distance becomes extremely important when the capillary liquid bridge between two surfaces is only determined by capillary condensation depending on relative humidity. Only a slight increase of the distance within the fraction of a nanometer changes the behaviour of the capillary force significantly. Furthermore, the influence of the force on the separation of particles will be presented. The force decreases almost linearly with increasing distance for a wide range of distances and consequently, a contact stiffness for capillary bridges could be derived. These results may e.g. be used in DEM models. Also, the maximum separation distance of capillary bridges in thermodynamic equilibrium and the correlation with the according bridge volume was investigated. As two limiting cases for capillary bridges at varying distances one can assume either a constant curvature, i.e. infinitely fast attainment of equilibrium, or a constant volume, i.e. infinitely slow attainment of equilibrium. Therefore, a comparison of these two possibilities will be presented and discussed as well.
AU - Dörmann, Michael
AU - Schmid, Hans-Joachim
ID - 26107
JF - Powder Technology
SN - 0032-5910
TI - Distance-dependency of capillary bridges in thermodynamic equilibrium
ER -
TY - CHAP
AU - Betz, Stefan
ED - Betz, Stefan
ID - 2619
T2 - Aktuelle Fragestellungen zu Produktion, Logistik und Controlling
TI - Strategische Erfolgsplanung für Produktinnovationen
ER -
TY - CHAP
AU - Betz, Stefan
ED - Betz, Stefan
ID - 2620
T2 - Aktuelle Fragestellungen zu Produktion, Logistik und Controlling
TI - Lagerkapazitätsdimensionierung als betriebswirtschaftliches Entscheidungsproblem
ER -
TY - THES
AU - Iwanek, Peter
ID - 26246
TI - Systematik zur Steigerung der Intelligenz mechatronischer Systeme im Maschinen- und Anlagenbau
VL - 366
ER -
TY - THES
AU - Schierbaum, Thomas
ID - 26247
TI - Systematik zur Kostenbewertung im Systementwurf mechatronischer Systeme in der Technologie Molded Interconnect Devices (MID)
VL - 368
ER -
TY - THES
AU - Westermann, Thorsten
ID - 26248
TI - Systematik zur Reifegradmodell-basierten Planung von Cyber-Physical Systems des Maschinen- und Anlagenbaus
VL - 375
ER -
TY - JOUR
AU - Sperling, Jan
AU - Walmsley, I. A.
ID - 26307
JF - Physical Review Letters
SN - 0031-9007
TI - Separable and Inseparable Quantum Trajectories
ER -
TY - JOUR
AU - Kröger, Johannes
AU - Ahrens, Thomas
AU - Sperling, Jan
AU - Vogel, Werner
AU - Stolz, Heinrich
AU - Hage, Boris
ID - 26308
JF - Journal of Physics B: Atomic, Molecular and Optical Physics
SN - 0953-4075
TI - High intensity click statistics from a 10 × 10 avalanche photodiode array
ER -
TY - JOUR
AU - Sperling, Jan
AU - Perez-Leija, Armando
AU - Busch, Kurt
AU - Walmsley, Ian A.
ID - 26309
JF - Physical Review A
SN - 2469-9926
TI - Quantum coherences of indistinguishable particles
ER -
TY - JOUR
AU - Agudelo, E.
AU - Sperling, Jan
AU - Costanzo, L. S.
AU - Bellini, M.
AU - Zavatta, A.
AU - Vogel, W.
ID - 26310
JF - Physical Review Letters
SN - 0031-9007
TI - Conditional Hybrid Nonclassicality
ER -
TY - JOUR
AU - Kühn, B.
AU - Vogel, W.
AU - Sperling, Jan
ID - 26311
JF - Physical Review A
SN - 2469-9926
TI - Displaced photon-number entanglement tests
ER -
TY - JOUR
AU - Bohmann, M.
AU - Sperling, Jan
AU - Vogel, W.
ID - 26312
JF - Physical Review A
SN - 2469-9926
TI - Entanglement verification of noisy NOON states
ER -
TY - JOUR
AU - Sperling, Jan
AU - Eckstein, A.
AU - Clements, W. R.
AU - Moore, M.
AU - Renema, J. J.
AU - Kolthammer, W. S.
AU - Nam, S. W.
AU - Lita, A.
AU - Gerrits, T.
AU - Walmsley, I. A.
AU - Agarwal, G. S.
AU - Vogel, W.
ID - 26313
JF - Physical Review A
SN - 2469-9926
TI - Identification of nonclassical properties of light with multiplexing layouts
ER -
TY - JOUR
AU - Sperling, Jan
AU - Walmsley, I. A.
ID - 26314
JF - Physical Review A
SN - 2469-9926
TI - Entanglement in macroscopic systems
ER -
TY - JOUR
AU - Sperling, Jan
AU - Agudelo, E
AU - Walmsley, I A
AU - Vogel, W
ID - 26315
JF - Journal of Physics B: Atomic, Molecular and Optical Physics
SN - 0953-4075
TI - Quantum correlations in composite systems
ER -
TY - JOUR
AU - Krumm, F.
AU - Vogel, W.
AU - Sperling, Jan
ID - 26316
JF - Physical Review A
SN - 2469-9926
TI - Time-dependent quantum correlations in phase space
ER -
TY - JOUR
AU - Bohmann, M.
AU - Kruse, R.
AU - Sperling, Jan
AU - Silberhorn, Christine
AU - Vogel, W.
ID - 26317
JF - Physical Review A
SN - 2469-9926
TI - Probing free-space quantum channels with laboratory-based experiments
ER -
TY - JOUR
AU - Ryl, S.
AU - Sperling, Jan
AU - Vogel, W.
ID - 26318
JF - Physical Review A
SN - 2469-9926
TI - Quantifying nonclassicality by characteristic functions
ER -
TY - JOUR
AU - Sperling, Jan
AU - Clements, W. R.
AU - Eckstein, A.
AU - Moore, M.
AU - Renema, J. J.
AU - Kolthammer, W. S.
AU - Nam, S. W.
AU - Lita, A.
AU - Gerrits, T.
AU - Vogel, W.
AU - Agarwal, G. S.
AU - Walmsley, I. A.
ID - 26319
JF - Physical Review Letters
SN - 0031-9007
TI - Detector-Independent Verification of Quantum Light
ER -
TY - JOUR
AU - Bohmann, M.
AU - Kruse, R.
AU - Sperling, Jan
AU - Silberhorn, Christine
AU - Vogel, W.
ID - 26320
JF - Physical Review A
SN - 2469-9926
TI - Direct calibration of click-counting detectors
ER -
TY - JOUR
AU - Bohmann, M.
AU - Sperling, Jan
AU - Semenov, A. A.
AU - Vogel, W.
ID - 26321
JF - Physical Review A
SN - 2469-9926
TI - Higher-order nonclassical effects in fluctuating-loss channels
ER -
TY - JOUR
AU - Schmitz, Hendrik
AU - Ziebarth, N. R.
ID - 2637
JF - Journal of Human Resources, 52(1), 88-127
TI - Does price framing affect the consumer price sensitivity of health plan choice?
ER -
TY - CHAP
AU - Bloh, Thiemo
ID - 26396
T2 - Profession und Disziplin
TI - Kollektivität und Lehrerkooperation – Zu Möglichkeiten der Konzeptualisierung und Erfassung von Professionalisierung durch Lehrerkooperationsprozesse
ER -
TY - JOUR
AU - Hadjakos, Aristotelis
AU - Iffland, Joachim
AU - Keil, Reinhard
AU - Oberhoff, Andreas
AU - Veit, Joachim
ID - 26426
JF - International Journal of Humanities and Arts Computing
TI - Challenges for Annotation Concepts in Music
VL - 11:2
ER -
TY - CHAP
AU - Keil, Reinhard
ID - 26427
T2 - Education in the digital age - balance sheet and perspectives
TI - Learning {\ "o} natural infrastructures: A technology-centered approach to the development of new educational potentials
ER -
TY - JOUR
AU - Hamilton, Craig S.
AU - Kruse, Regina
AU - Sansoni, Linda
AU - Barkhofen, Sonja
AU - Silberhorn, Christine
AU - Jex, Igor
ID - 26496
JF - Physical Review Letters
SN - 0031-9007
TI - Gaussian Boson Sampling
ER -
TY - JOUR
AU - Barkhofen, Sonja
AU - Nitsche, Thomas
AU - Elster, Fabian
AU - Lorz, Lennart
AU - Gábris, Aurél
AU - Jex, Igor
AU - Silberhorn, Christine
ID - 26502
JF - Physical Review A
SN - 2469-9926
TI - Measuring topological invariants in disordered discrete-time quantum walks
ER -
TY - JOUR
AU - Zoyke, A.
AU - Beutner, Marc
AU - Herrmann, Philipp
AU - Kundisch, Dennis
AU - Magenheim, Johannes
AU - Neugebauer, J.
ID - 2653
IS - 1+2
JF - Das Hochschulwesen
TI - Webbasierte Classroom Response Systeme in der Hochschullehre - Eine designbasierte Fallstudie zur Unterstützung von Lehr-/Lernprozessen aus Studierendensicht
VL - 65
ER -
TY - JOUR
AU - Dreßler, Kevin
AU - Ngonga Ngomo, Axel-Cyrille
ID - 26544
IS - 2
JF - Semantic Web
TI - On the efficient execution of bounded Jaro-Winkler distances
VL - 8
ER -
TY - JOUR
AU - Nentwig, Markus
AU - Hartung, Michael
AU - Ngonga Ngomo, Axel-Cyrille
AU - Rahm, Erhard
ID - 26545
IS - 3
JF - Semantic Web
TI - A survey of current Link Discovery frameworks
VL - 8
ER -
TY - JOUR
AU - Ngonga Ngomo, Axel-Cyrille
AU - Unger, Christina
ID - 26546
IS - 4
JF - Semantic Web
TI - Special issue on question answering for Linked Data
VL - 8
ER -
TY - JOUR
AU - Höffner, Konrad
AU - Walter, Sebastian
AU - Marx, Edgard
AU - Usbeck, Ricardo
AU - Lehmann, Jens
AU - Ngonga Ngomo, Axel-Cyrille
ID - 26547
IS - 6
JF - Semantic Web
TI - Survey on challenges of Question Answering in the Semantic Web
VL - 8
ER -
TY - CONF
AU - Ahmed Sherif, Mohamed
AU - Dreßler, Kevin
AU - Smeros, Panayiotis
AU - Ngonga Ngomo, Axel-Cyrille
ED - P. Singh, Satinder
ED - Markovitch, Shaul
ID - 26548
T2 - Proceedings of the Thirty-First {AAAI} Conference on Artificial Intelligence, February 4-9, 2017, San Francisco, California, {USA}
TI - Radon - Rapid Discovery of Topological Relations
ER -
TY - CONF
AU - Ngonga Ngomo, Axel-Cyrille
AU - Hoffmann, Michael
AU - Usbeck, Ricardo
AU - Jha, Kunal
ED - Nie, Jian-Yun
ED - Obradovic, Zoran
ED - Suzumura, Toyotaro
ED - Ghosh, Rumi
ED - Nambiar, Raghunath
ED - Wang, Chonggang
ED - Zang, Hui
ED - Baeza-Yates, Ricardo
ED - Hu, Xiaohua
ED - Kepner, Jeremy
ED - Cuzzocrea, Alfredo
ED - Tang, Jian
ED - Toyoda, Masashi
ID - 26549
T2 - 2017 {IEEE} International Conference on Big Data, BigData 2017, Boston, MA, USA, December 11-14, 2017
TI - Holistic and scalable ranking of RDF data
ER -
TY - CONF
AU - Bin, Simon
AU - Westphal, Patrick
AU - Lehmann, Jens
AU - Ngonga Ngomo, Axel-Cyrille
ED - Nie, Jian-Yun
ED - Obradovic, Zoran
ED - Suzumura, Toyotaro
ED - Ghosh, Rumi
ED - Nambiar, Raghunath
ED - Wang, Chonggang
ED - Zang, Hui
ED - Baeza-Yates, Ricardo
ED - Hu, Xiaohua
ED - Kepner, Jeremy
ED - Cuzzocrea, Alfredo
ED - Tang, Jian
ED - Toyoda, Masashi
ID - 26550
T2 - 2017 {IEEE} International Conference on Big Data, BigData 2017, Boston, MA, USA, December 11-14, 2017
TI - Implementing scalable structured machine learning for big data in the SAKE project
ER -
TY - CONF
AU - Georgala, Kleanthi
AU - Spasic, Mirko
AU - Jovanovik, Milos
AU - Petzka, Henning
AU - Röder, Michael
AU - Ngonga Ngomo, Axel-Cyrille
ED - Dragoni, Mauro
ED - Solanki, Monika
ED - Blomqvist, Eva
ID - 26551
T2 - Semantic Web Challenges - 4th SemWebEval Challenge at {ESWC} 2017, Portoroz, Slovenia, May 28 - June 1, 2017, Revised Selected Papers
TI - MOCHA2017: The Mighty Storage Challenge at ESWC 2017
VL - 769
ER -
TY - CONF
AU - Speck, René
AU - Röder, Michael
AU - Oramas, Sergio
AU - Espinosa Anke, Luis
AU - Ngonga Ngomo, Axel-Cyrille
ED - Dragoni, Mauro
ED - Solanki, Monika
ED - Blomqvist, Eva
ID - 26552
T2 - Semantic Web Challenges - 4th SemWebEval Challenge at {ESWC} 2017, Portoroz, Slovenia, May 28 - June 1, 2017, Revised Selected Papers
TI - Open Knowledge Extraction Challenge 2017
VL - 769
ER -
TY - CONF
AU - Usbeck, Ricardo
AU - Ngonga Ngomo, Axel-Cyrille
AU - Haarmann, Bastian
AU - Krithara, Anastasia
AU - Röder, Michael
AU - Napolitano, Giulio
ED - Dragoni, Mauro
ED - Solanki, Monika
ED - Blomqvist, Eva
ID - 26553
T2 - Semantic Web Challenges - 4th SemWebEval Challenge at {ESWC} 2017, Portoroz, Slovenia, May 28 - June 1, 2017, Revised Selected Papers
TI - 7th Open Challenge on Question Answering over Linked Data (QALD-7)
VL - 769
ER -
TY - CONF
AU - Ahmed Sherif, Mohamed
AU - Ngonga Ngomo, Axel-Cyrille
AU - Lehmann, Jens
ED - Blomqvist, Eva
ED - Maynard, Diana
ED - Gangemi, Aldo
ED - Hoekstra, Rinke
ED - Hitzler, Pascal
ED - Hartig, Olaf
ID - 26554
T2 - The Semantic Web - 14th International Conference, {ESWC} 2017, Portoro{\v{z}}, Slovenia, May 28 - June 1, 2017, Proceedings, Part {I}
TI - Wombat - A Generalization Approach for Automatic Link Discovery
VL - 10249
ER -
TY - CONF
AU - Jha, Kunal
AU - Röder, Michael
AU - Ngonga Ngomo, Axel-Cyrille
ED - Blomqvist, Eva
ED - Hose, Katja
ED - Paulheim, Heiko
ED - Lawrynowicz, Agnieszka
ED - Ciravegna, Fabio
ED - Hartig, Olaf
ID - 26555
T2 - The Semantic Web: {ESWC} 2017 Satellite Events - {ESWC} 2017 Satellite Events, Portoro{\v{z}}, Slovenia, May 28 - June 1, 2017, Revised Selected Papers
TI - Eaglet - a Named Entity Recognition and Entity Linking Gold Standard Checking Tool
VL - 10577
ER -