TY  - JOUR
A1  - Engemann, Heiko
A1  - Du, Shengzhi
A1  - Kallweit, Stephan
A1  - Cönen, Patrick
A1  - Dawar, Harshal
T1  - OMNIVIL - an autonomous mobile manipulator for flexible production
JF  - Sensors
Y1  - 2020
SN  - 1424-8220
U6  - https://doi.org/10.3390/s20247249
N1  - Special issue: Sensor Networks Applications in Robotics and Mobile Systems
VL  - 20
IS  - 24, art. no. 7249
SP  - 1
EP  - 30
PB  - MDPI
CY  - Basel
ER  - 
TY  - JOUR
A1  - Engels, Elmar
A1  - Wiendahl, H.-P.
A1  - Doege, E.
T1  - Universelle hydraulische Try-Out Presse / Teilprojekt A6 / Wiendahl, H.-P. ; Doege, E. ; Engels, E.
JF  - Tagungsband : 12. Oktober 1999, Leibnizhaus Hannover / Sonderforschungsbereich 384 Verfügbarkeitssicherung Reaktionsschneller Produktionssysteme, Universität Hannover. Hrsg.: H.-P. Wiendahl ; M. Röhrig
Y1  - 1999
SN  - 3-00-005495-2
N1  - Industriekolloquium Verfügbarkeit <1999, Hannover> ; Sonderforschungsbereich Verfügbarkeitssicherung Reaktionsschneller Produktionssysteme <Hannover>
CY  - Hannover
ER  - 
TY  - JOUR
A1  - Engels, Elmar
A1  - Krauskopf, S.
T1  - Innovation in Motion-Logic programming - a versatile interface
JF  - Proceedings to the 12th International Workshop on Research and Education in Mechatronics, REM 2011, Kocaeli, Turkey, 15.09.-16.09.2011
Y1  - 2011
SN  - 978-975-8047-96-3
PB  - -
ER  - 
TY  - JOUR
A1  - Engels, Elmar
A1  - Doege, Eckhart
T1  - Pressen - Vergleich zwischen Raumlenker- und Exzenterantrieb / Doege, Eckhart ; Engels, Elmar
JF  - Blech, Rohre, Profile : Herstellen, Verarbeiten und Veredeln von Band, Blech, Rohren und Profilen. 46 (1999), H. 7-8
Y1  - 1999
SN  - 0006-4688
SP  - 31
EP  - 37
ER  - 
TY  - JOUR
A1  - Engels, Elmar
A1  - Doege, Eckhart
T1  - Pressen - Hubzahlregelung an Schnelläuferpressen mit Fuzzy-Reglern / Doege, Eckhart ; Engels, Elmar
JF  - Blech, Rohre, Profile : Herstellen, Verarbeiten und Veredeln von Band, Blech, Rohren und Profilen. 45 (1998), H. 11
Y1  - 1998
SN  - 0006-4688
SP  - 47
EP  - 49
ER  - 
TY  - JOUR
A1  - Engels, Elmar
A1  - Doege, E.
A1  - Elend, L. E.
T1  - Modifizierte Ziehkissenklemmung erweitert Pressen-Arbeitsbereich /  Doege, E. ; Elend, L. E. ; Engels, E.
JF  - Maschinenmarkt. 106 (2000), H. 7
Y1  - 2000
SN  - 0341-5775
SP  - 30
EP  - 33
ER  - 
TY  - JOUR
A1  - Engels, Elmar
A1  - Doege, E.
T1  - Optimizing the number of strokes for punching machines using a fuzzy controlled electrohydraulic damping system / Doege, E. ; Engels, E.
JF  - ICME 98, CIRP International Seminar on Intelligent Computation in Manufacturing Engineering, Proceedings, Capri, IT, Jul 1-3, 1998
Y1  - 1998
SP  - 471
EP  - 478
CY  - Capri
ER  - 
TY  - JOUR
A1  - Engels, Elmar
T1  - Reduzierung der horizontalen Massenkräfte bei Pressen mit Raumlenkerantrieb
JF  - UTF-science : Forschungsmagazin für die Produktionstechnik. 1 (2000), H. 3
Y1  - 2000
SP  - 17 S.
ER  - 
TY  - JOUR
A1  - Engeln-Müllges, Gisela
T1  - Entartungsbedingungen für Gleitflächennomogramme und Nomographierbarkeitsbedingungen für Fluchtebenennomogramme
JF  - ZAMM ‐ Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik
Y1  - 1982
U6  - https://doi.org/10.1002/zamm.19820620203
SN  - 1521-4001
VL  - 62
IS  - 2
SP  - 77
EP  - 93
ER  - 
TY  - JOUR
A1  - Engelmann, Ulrich M.
A1  - Simsek, Beril
A1  - Shalaby, Ahmed
A1  - Krause, Hans-Joachim
T1  - Key contributors to signal generation in frequency mixing magnetic detection (FMMD): an in silico study
JF  - Sensors
N2  - Frequency mixing magnetic detection (FMMD) is a sensitive and selective technique to detect magnetic nanoparticles (MNPs) serving as probes for binding biological targets. Its principle relies on the nonlinear magnetic relaxation dynamics of a particle ensemble interacting with a dual frequency external magnetic field. In order to increase its sensitivity, lower its limit of detection and overall improve its applicability in biosensing, matching combinations of external field parameters and internal particle properties are being sought to advance FMMD. In this study, we systematically probe the aforementioned interaction with coupled Néel–Brownian dynamic relaxation simulations to examine how key MNP properties as well as applied field parameters affect the frequency mixing signal generation. It is found that the core size of MNPs dominates their nonlinear magnetic response, with the strongest contributions from the largest particles. The drive field amplitude dominates the shape of the field-dependent response, whereas effective anisotropy and hydrodynamic size of the particles only weakly influence the signal generation in FMMD. For tailoring the MNP properties and parameters of the setup towards optimal FMMD signal generation, our findings suggest choosing large particles of core sizes dc > 25 nm nm with narrow size distributions (σ < 0.1) to minimize the required drive field amplitude. This allows potential improvements of FMMD as a stand-alone application, as well as advances in magnetic particle imaging, hyperthermia and magnetic immunoassays.
KW  - key performance indicators
KW  - magnetic biosensing
KW  - coupled Néel–Brownian relaxation dynamics
KW  - frequency mixing magnetic detection
KW  - magnetic relaxation
KW  - micromagnetic simulation
KW  - magnetic nanoparticles
Y1  - 2024
U6  - https://doi.org/10.3390/s24061945
SN  - 1424-8220
N1  - This article belongs to the Special Issue "Advances in Magnetic Sensors and Their Applications"
VL  - 24
IS  - 6
PB  - MDPI
CY  - Basel
ER  - 
TY  - JOUR
A1  - Engelmann, Ulrich M.
A1  - Shasha, Carolyn
A1  - Teeman, Eric
A1  - Slabu, Iona
A1  - Krishnan, Kannan M.
T1  - Predicting size-dependent heating efficiency of magnetic nanoparticles from experiment and stochastic Néel-Brown Langevin simulation
JF  - Journal of Magnetism and Magnetic Materials
Y1  - 2019
U6  - https://doi.org/10.1016/j.jmmm.2018.09.041
SN  - 0304-8853
VL  - 471
IS  - 1
SP  - 450
EP  - 456
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Engelmann, Ulrich M.
A1  - Shalaby, Ahmed
A1  - Shasha, Carolyn
A1  - Krishnan, Kannan M.
A1  - Krause, Hans-Joachim
T1  - Comparative modeling of frequency mixing measurements of magnetic nanoparticles using micromagnetic simulations and Langevin theory
JF  - Nanomaterials
N2  - Dual frequency magnetic excitation of magnetic nanoparticles (MNP) enables enhanced biosensing applications. This was studied from an experimental and theoretical perspective: nonlinear sum-frequency components of MNP exposed to dual-frequency magnetic excitation were measured as a function of static magnetic offset field. The Langevin model in thermodynamic equilibrium was fitted to the experimental data to derive parameters of the lognormal core size distribution. These parameters were subsequently used as inputs for micromagnetic Monte-Carlo (MC)-simulations. From the hysteresis loops obtained from MC-simulations, sum-frequency components were numerically demodulated and compared with both experiment and Langevin model predictions. From the latter, we derived that approximately 90% of the frequency mixing magnetic response signal is generated by the largest 10% of MNP. We therefore suggest that small particles do not contribute to the frequency mixing signal, which is supported by MC-simulation results. Both theoretical approaches describe the experimental signal shapes well, but with notable differences between experiment and micromagnetic simulations. These deviations could result from Brownian relaxations which are, albeit experimentally inhibited, included in MC-simulation, or (yet unconsidered) cluster-effects of MNP, or inaccurately derived input for MC-simulations, because the largest particles dominate the experimental signal but concurrently do not fulfill the precondition of thermodynamic equilibrium required by Langevin theory.
KW  - Magnetic nanoparticles
KW  - Frequency mixing magnetic detection
KW  - Langevin theory
KW  - Micromagnetic simulation
KW  - Nonequilibrium dynamics
Y1  - 2021
SN  - 2079-4991
U6  - https://doi.org/10.3390/nano11051257
N1  - This article belongs to the Special Issue Applications and Properties of Magnetic Nanoparticles
VL  - 11
IS  - 5
SP  - 1
EP  - 16
PB  - MDPI
CY  - Basel
ER  - 
TY  - JOUR
A1  - Engelmann, Ulrich M.
A1  - Seifert, Julian
A1  - Mues, Benedikt
A1  - Roitsch, Stefan
A1  - Ménager, Christine
A1  - Schmidt, Annette M.
A1  - Slabu, Ioana
T1  - Heating efficiency of magnetic nanoparticles decreases with gradual immobilization in hydrogels
JF  - Journal of Magnetism and Magnetic Materials
Y1  - 2019
U6  - https://doi.org/10.1016/j.jmmm.2018.09.113
SN  - 0304-8853
VL  - 471
IS  - 1
SP  - 486
EP  - 494
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Engelmann, Ulrich M.
A1  - Roeth, Anjali A.J.
A1  - Eberbeck, Dietmar
A1  - Buhl, Eva Miriam
A1  - Neumann, Ulf Peter
A1  - Schmitz-Rode, Thomas
A1  - Slabu, Ioana
T1  - Combining Bulk Temperature and Nanoheating Enables Advanced Magnetic Fluid Hyperthermia Efficacy on Pancreatic Tumor Cells
JF  - Scientific Reports
N2  - Many efforts are made worldwide to establish magnetic fluid hyperthermia (MFH) as a treatment for organ-confined tumors. However, translation to clinical application hardly succeeds as it still lacks of understanding the mechanisms determining MFH cytotoxic effects. Here, we investigate the intracellular MFH efficacy with respect to different parameters and assess the intracellular cytotoxic effects in detail. For this, MiaPaCa-2 human pancreatic tumor cells and L929 murine fibroblasts were loaded with iron-oxide magnetic nanoparticles (MNP) and exposed to MFH for either 30 min or 90 min. The resulting cytotoxic effects were assessed via clonogenic assay. Our results demonstrate that cell damage depends not only on the obvious parameters bulk temperature and duration of treatment, but most importantly on cell type and thermal energy deposited per cell during MFH treatment. Tumor cell death of 95% was achieved by depositing an intracellular total thermal energy with about 50% margin to damage of healthy cells. This is attributed to combined intracellular nanoheating and extracellular bulk heating. Tumor cell damage of up to 86% was observed for MFH treatment without perceptible bulk temperature rise. Effective heating decreased by up to 65% after MNP were internalized inside cells.
Y1  - 2018
U6  - https://doi.org/10.1038/s41598-018-31553-9
SN  - 2045-2322
VL  - 8
IS  - 1
SP  - Article number 13210
PB  - Springer Nature
CY  - Cham
ER  - 
TY  - JOUR
A1  - Engelmann, Ulrich M.
A1  - Pourshahidi, Mohammad Ali
A1  - Shalaby, Ahmed
A1  - Krause, Hans-Joachim
T1  - Probing particle size dependency of frequency mixing magnetic detection with dynamic relaxation simulation
JF  - Journal of Magnetism and Magnetic Materials
N2  - Biomedical applications of magnetic nanoparticles (MNP) fundamentally rely on the particles’ magnetic relaxation as a response to an alternating magnetic field. The magnetic relaxation complexly depends on the interplay of MNP magnetic and physical properties with the applied field parameters. It is commonly accepted that particle core size is a major contributor to signal generation in all the above applications, however, most MNP samples comprise broad distribution spanning  nm and more. Therefore, precise knowledge of the exact contribution of individual core sizes to signal generation is desired for optimal MNP design generally for each application. Specifically, we present a magnetic relaxation simulation-driven analysis of experimental frequency mixing magnetic detection (FMMD) for biosensing to quantify the contributions of individual core size fractions towards signal generation. Applying our method to two different experimental MNP systems, we found the most dominant contributions from approx. 20 nm sized particles in the two independent MNP systems. Additional comparison between freely suspended and immobilized MNP also reveals insight in the MNP microstructure, allowing to use FMMD for MNP characterization, as well as to further fine-tune its applicability in biosensing.
Y1  - 2022
U6  - https://doi.org/10.1016/j.jmmm.2022.169965
SN  - 0304-8853
VL  - 563
IS  - In progress, Art. No. 169965
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Engelmann, Ulrich M.
A1  - Buhl, Eva Miriam
A1  - Draack, Sebastian
A1  - Viereck, Thilo
A1  - Frank, 
A1  - Schmitz-Rode, Thomas
A1  - Slabu, Ioana
T1  - Magnetic relaxation of agglomerated and immobilized iron oxide nanoparticles for hyperthermia and imaging applications
JF  - IEEE Magnetic Letters
N2  - Magnetic nanoparticles (MNPs) are used as therapeutic and diagnostic agents for local delivery of heat and image contrast enhancement in diseased tissue. Besides magnetization, the most important parameter that determines their performance for these applications is their magnetic relaxation, which can be affected when MNPs immobilize and agglomerate inside tissues. In this letter, we investigate different MNP agglomeration states for their magnetic relaxation properties under excitation in alternating fields and relate this to their heating efficiency and imaging properties. With focus on magnetic fluid hyperthermia, two different trends in MNP heating efficiency are measured: an increase by up to 23% for agglomerated MNP in suspension and a decrease by up to 28% for mixed states of agglomerated and immobilized MNP, which indicates that immobilization is the dominant effect. The same comparatively moderate effects are obtained for the signal amplitude in magnetic particle spectroscopy.
Y1  - 2018
U6  - https://doi.org/10.1109/LMAG.2018.2879034
SN  - 1949-307X
VL  - 9
IS  - Article number 8519617
PB  - IEEE
CY  - New York, NY
ER  - 
TY  - JOUR
A1  - Engelmann, Ulrich M.
A1  - Buhl, Eva Miriam
A1  - Baumann, Martin
A1  - Schmitz-Rode, Thomas
A1  - Slabu, Ioana
T1  - Agglomeration of magnetic nanoparticles and its effects on magnetic hyperthermia
JF  - Current Directions in Biomedical Engineering
Y1  - 2017
U6  - https://doi.org/10.1515/cdbme-2017-0096
SN  - 2364-5504
VL  - 3
IS  - 2
SP  - 457
EP  - 460
PB  - De Gruyter
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Engel, Mareike
A1  - Holtmann, Dirk
A1  - Ulber, Roland
A1  - Tippkötter, Nils
T1  - Increased Biobutanol Production by Mediator‐Less Electro‐Fermentation
JF  - Biotechnology Journal
N2  - A future bio-economy should not only be based on renewable raw materials but also in the raise of carbon yields of existing production routes. Microbial electrochemical technologies are gaining increased attention for this purpose. In this study, the electro-fermentative production of biobutanol with C. acetobutylicum without the use of exogenous mediators is investigated regarding the medium composition and the reactor design. It is shown that the use of an optimized synthetic culture medium allows higher product concentrations, increased biofilm formation, and higher conductivities compared to a synthetic medium supplemented with yeast extract. Moreover, the optimization of the reactor system results in a doubling of the maximum product concentrations for fermentation products. When a working electrode is polarized at −600 mV vs. Ag/AgCl, a shift from butyrate to acetone and butanol production is induced. This leads to an increased final solvent yield of Yᴀᴃᴇ = 0.202 gg⁻¹ (control 0.103 gg⁻¹), which is also reflected in a higher carbon efficiency of 37.6% compared to 23.3% (control) as well as a fourfold decrease in simplified E-factor to 0.43. The results are promising for further development of biobutanol production in bioelectrochemical systems in order to fulfil the principles of Green Chemistry.
Y1  - 2018
U6  - https://doi.org/10.1002/biot.201800514
SN  - 1860-7314
VL  - 14
IS  - 4
PB  - Wiley-VCH
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Engel, Mareike
A1  - Gemünde, Andre
A1  - Holtmann, Dirk
A1  - Müller-Renno, Christine
A1  - Ziegler, Christiane
A1  - Tippkötter, Nils
A1  - Ulber, Roland
T1  - Clostridium acetobutylicum’s connecting world: cell appendage formation in bioelectrochemical systems
JF  - ChemElectroChem
N2  - Bacterial cell appendix formation supports cell-cell interaction, cell adhesion and cell movement. Additionally, in bioelectrochemical systems (BES), cell appendages have been shown to participate in extracellular electron transfer. In this work, the cell appendix formation of Clostridium acetobutylicum in biofilms of a BES are imaged and compared with conventional biofilms. Under all observed conditions, the cells possess filamentous appendages with a higher number and density in the BES. Differences in the amount of extracellular polymeric substance in the biofilms of the electrodes lead to the conclusion that the cathode can be used as electron donor and the anode as electron acceptor by C. acetobutylicum. When using conductive atomic force microscopy, a current response of about 15 nA is found for the cell appendages from the BES. This is the first report of conductivity for clostridial cell appendices and represents the basis for further studies on their role for biofilm formation and electron transfer.
Y1  - 2019
U6  - https://doi.org/10.1002/celc.201901656
SN  - 2196-0216
VL  - 7
IS  - 2
SP  - 414
EP  - 420
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Engel, Mareike
A1  - Bayer, Hendrik
A1  - Holtmann, Dirk
A1  - Tippkötter, Nils
A1  - Ulber, Roland
T1  - Flavin secretion of Clostridium acetobutylicum in a bioelectrochemical system - Is an iron limitation involved?
JF  - Bioelectrochemistry
Y1  - 2019
U6  - https://doi.org/10.1016/j.bioelechem.2019.05.014
SN  - 1567-5394
IS  - In Press, Accepted Manuscript
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Emons, H.
A1  - Hüllenkremer, B.
A1  - Schöning, Michael Josef
T1  - Detection of metal ions in aqueous solutions by voltohmmetry
JF  - Fresenius' Journal of Analytical Chemistry. 369 (2001), H. 1
Y1  - 2001
SN  - 0937-0633
SP  - 42
EP  - 46
ER  - 
TY  - JOUR
A1  - Emons, H.
A1  - Glück, O.
A1  - Schöning, Michael Josef
T1  - Voltohmmetry – An alternative detection principle at ultrathin metal electrodes in solution
JF  - Chemical and biological sensors and analytical methods : proceedings of the international symposium / Sensor, Physical Electrochemistry, and Organic and Biological Electrochemistry Divisions. Ed.: M. Butler
Y1  - 2001
SN  - 1-56677-351-2
N1  - International Symposium: Chemical and Biological Sensors and Analytical Methods ; (2 : 2001.)
SP  - 1
EP  - 3
PB  - Electrochemical Society
CY  - Pennington, NJ
ER  - 
TY  - JOUR
A1  - Emons, H.
A1  - Glück, O.
A1  - Hüllenkremer, B.
A1  - Schöning, Michael Josef
T1  - Voltohmmetry as an alternative detection method at polycrystalline metal film electrodes
JF  - Electroanalysis. 13 (2001), H. 8-9
Y1  - 2001
SN  - 1040-0397
SP  - 677
EP  - 680
ER  - 
TY  - JOUR
A1  - Emons, H.
A1  - Baade, A.
A1  - Schöning, Michael Josef
T1  - Voltammetric determination of heavy metals in microvolumes of rain water
JF  - Electroanalysis. 12 (2000), H. 15
Y1  - 2000
SN  - 1040-0397
SP  - 1171
EP  - 1176
ER  - 
TY  - JOUR
A1  - Emig, J.
A1  - Hebel, Christoph
A1  - Schwark, A.
T1  - Einsatzbereiche für Verkehrsnachfragemodelle
JF  - Straßenverkehrstechnik
N2  - In der Praxis bestehen vielfältige Einsatzbereiche für Verkehrsnachfragemodelle. Mit ihnen können Kenngrößen des Verkehrsangebots und der Verkehrsnachfrage für den heutigen Zustand wie auch für zukünftige Zustände bereitgestellt werden, um so die Grundlagen für verkehrsplanerische Entscheidungen zu liefern. Die neuen „Empfehlungen zum Einsatz von Verkehrsnachfragemodellen für den Personenverkehr“ (EVNM-PV) (FGSV 2022) veranschaulichen anhand von typischen Planungsaufgaben, welche differenzierten Anforderungen daraus für die Modellkonzeption und -erstellung resultieren. Vor dem Hintergrund der konkreten Aufgabenstellung sowie deren spezifischer planerischer Anforderungen bildet die abzuleitende Modellspezifikation die verabredete Grundlage zwischen Auftraggeber und Modellersteller für die konkrete inhaltliche, fachliche Ausgestaltung des Verkehrsmodells.
Y1  - 2022
U6  - https://doi.org/10.53184/SVT10-2022-2
SN  - 0039-2219
VL  - 66
IS  - 10
SP  - 727
EP  - 736
PB  - Kirschbaum Verlag GmbH
CY  - Bonn
ER  - 
TY  - JOUR
A1  - Emhardt, Selina N.
A1  - Jarodzka, Halszka
A1  - Brand-Gruwel, Saskia
A1  - Drumm, Christian
A1  - Niehorster, Diederick C.
A1  - van Gog, Tamara
T1  - What is my teacher talking about? Effects of displaying the teacher’s gaze and mouse cursor cues in video lectures on students’ learning
JF  - Journal of Cognitive Psychology
N2  - Eye movement modelling examples (EMME) are instructional videos that display a
teacher’s eye movements as “gaze cursor” (e.g. a moving dot) superimposed on the
learning task. This study investigated if previous findings on the beneficial effects of EMME would extend to online lecture videos and compared the effects of displaying the teacher’s gaze cursor with displaying the more traditional mouse cursor as a tool to guide learners’ attention. Novices (N = 124) studied a pre-recorded video lecture on how to model business processes in a 2 (mouse cursor absent/present) × 2 (gaze cursor absent/present) between-subjects design. Unexpectedly, we did not find significant effects of the presence of gaze or mouse cursors on mental effort and learning. However, participants who watched videos with the gaze cursor found it easier to follow the teacher. Overall, participants responded positively to the gaze cursor, especially when the mouse cursor was not displayed in the video.
KW  - Instructional design
KW  - eye movement modelling examples
KW  - video learning
Y1  - 2022
U6  - https://doi.org/10.1080/20445911.2022.2080831
SN  - 2044-5911
SP  - 1
EP  - 19
PB  - Routledge, Taylor & Francis Group
CY  - Abingdon
ER  - 
TY  - JOUR
A1  - Emhardt, Selina
A1  - Jarodzka, Halszka
A1  - Brand-Gruwel, Saskia
A1  - Drumm, Christian
A1  - Gog, Tamara van
T1  - Introducing eye movement modeling examples for programming education and the role of teacher's didactic guidance
JF  - ETRA '20 Short Papers: ACM Symposium on Eye Tracking Research and Applications
N2  - In this article, we introduce how eye-tracking technology might become a promising tool to teach programming skills, such as debugging with ‘Eye Movement Modeling Examples’ (EMME). EMME are tutorial videos that visualize an expert's (e.g., a programming teacher's) eye movements during task performance to guide students’ attention, e.g., as a moving dot or circle. We first introduce the general idea behind the EMME method and present studies that showed first promising results regarding the benefits of EMME to support programming education. However, we argue that the instructional design of EMME varies notably across them, as evidence-based guidelines on how to create effective EMME are often lacking. As an example, we present our ongoing research on the effects of different ways to instruct the EMME model prior to video creation. Finally, we highlight open questions for future investigations that could help improving the design of EMME for (programming) education.
Y1  - 2020
U6  - https://doi.org/10.1145/3379156.3391978
IS  - Art. 52
SP  - 1
EP  - 4
PB  - ACM
CY  - New York
ER  - 
TY  - JOUR
A1  - Elsen, Ingo
A1  - Kraiss, Karl-Friedrich
A1  - Krumbiegel, Dirk
A1  - Walter, Peter
A1  - Wickel, Jochen
T1  - Visual information retrieval for 3D product identification: a midterm report
JF  - KI - Künstliche Intelligenz
Y1  - 1999
SN  - 1610-1987
SN  - 0933-1875
VL  - 13
IS  - 1
SP  - 64
EP  - 67
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Elsen, Ingo
A1  - Kraiss, Karl-Friedrich
T1  - System concept and realization of a scalable neurocomputing architecture
JF  - Systems Analysis Modelling Simulation
N2  - This paper describes the realization of a novel neurocomputer which is based on the concepts of a coprocessor. In contrast to existing neurocomputers the main interest was the realization of a scalable, flexible system, which is capable of computing neural networks of arbitrary topology and scale, with full independence of special hardware from the software's point of view. On the other hand, computational power should be added, whenever needed and flexibly adapted to the requirements of the application. Hardware independence is achieved by a run time system which is capable of using all available computing power, including multiple host CPUs and an arbitrary number of neural coprocessors autonomously. The realization of arbitrary neural topologies is provided through the implementation of the elementary operations which can be found in most neural topologies.
Y1  - 1999
SN  - 0232-9298
SN  - 1029-4902
VL  - 35
IS  - 4
SP  - 399
EP  - 419
PB  - Gordon and Breach Science Publishers
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Elsen, Ingo
A1  - Hartung, Frank
A1  - Horn, Uwe
A1  - Kampmann, Markus
A1  - Peters, Liliane
ED  - Voas, Jeffrey
T1  - Streaming technology in 3G mobile communication systems
JF  - Computer : innovative technology for computer professionals
N2  - Third-generation mobile communication systems will combine standardized streaming with a range of unique services to provide high-quality Internet content that meets the specific needs of the rapidly growing mobile market.
Y1  - 2001
SN  - 0018-9162
SN  - 1558-0814
VL  - 34
IS  - 9 Seiten
SP  - 46
EP  - 52
PB  - IEEE
CY  - New York
ER  - 
TY  - JOUR
A1  - Ellrich, Thomas
A1  - Lind, Thorsten Patric
T1  - Die 'kalte Zwangsverwaltung' durch den Insolvenzverwalter
JF  - Forderungs-Praktiker : WIKI
Y1  - 2012
IS  - 1
SP  - 16
EP  - 21
PB  - FCH
CY  - Heidelberg
ER  - 
TY  - JOUR
A1  - Ellerweg, Roland
A1  - Ritz, Thomas
A1  - Schuhmann, Stefan
T1  - Anwendungsentwicklung für iPhone und Windows Mobile : ein bisschen von allem
JF  - iX : Magazin für professionelle Informationstechnik
Y1  - 2009
SN  - 0935-9680 (Print)
SN  - 1612-1392 (Online)
IS  - 3
SP  - 132
EP  - 135
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Zang, Thorsten
A1  - Buck, Manfred
T1  - Ruß-Immissionsmessungen im Einflußbereich des Kraftfahrzeugverkehrs
JF  - Staub, Reinhaltung der Luft : air quality control. 50 (1990)
Y1  - 1990
SN  - 0039-0771
SP  - 93
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Thomzik, Manfred
T1  - Das Entstehen geruchsintensiver schwefelhaltiger organischer Verbindungen in Lackierereien und Möglichkeiten zu deren Vermeidung
JF  - Aus der Tätigkeit der LIS / Landesanstalt für Immissionsschutz des Landes Nordrhein-Westfalen. 1989 (1990)
Y1  - 1990
SN  - 0931-5497
SP  - 35
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Richter, J.
T1  - Messung kraftfahrzeugbedingter Rußimmissionen
JF  - Staub, Reinhaltung der Luft : air quality control. 54 (1994)
Y1  - 1994
SN  - 0039-0771
SP  - 19
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Remme, S.
A1  - Lehmann, G.
T1  - EPR of Cr3+ in Tris(acetylacetonato)gallium(III) Single Crystals
JF  - Inorganic Chemistry. 25 (1986)
Y1  - 1986
SN  - 0020-1669
SP  - 896
EP  - 897
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Remme, S.
A1  - Lehmann, G.
T1  - EPR and Optical Absorption of Cr3+ in CsCl and CsBr
JF  - Physica Status Solidi (B). 142 (1987), H. 2
Y1  - 1987
SN  - 0031-8957
SP  - 367
EP  - 377
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Pfeffer, Hans-Ulrich
A1  - Friesel, Jürgen
A1  - Beier, Reinhold
T1  - Air Pollution Monitoring in Street Canyons / Hans-Ulrich Pfeffer, Jürgen Friesel, Gereon Elbers, Reinhold Beier,
JF  - Transport and air pollution : proceedings ; 3rd international symposium, Palais des Papes, Avignon, France, 6 - 10 June 1994 = Transports et pollution de l'air / [Third International Symposium on Transport and Air Pollution]. Ed. by Robert Joumard. Organizer: French National Institute for Transport and Safety Research
Y1  - 1995
N1  - International Symposium on Transport and Air Pollution  <3, 1994, Avignon>
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Pfeffer, H.-U.
A1  - Friesel, J.
A1  - Beier, R.
T1  - Pilotuntersuchungen gemäß dem Verordnungsentwurf nach § 40, Abs. 2 des Bundesimmissionsschutzgesetzes / H.-U. Pfeffer, J. Friesel, G. Elbers, R. Beier, K. Ellermann
JF  - Drei Jahrzehnte Luftqualitätsüberwachung : Vorträge und Berichte zum Kolloquium "Drei Jahrzehnte Luftqualitätsüberwachung - Bilanz und Perspektiven" am 11. November 1993 in Essen / [Hrsg.: Landesanstalt für Immissionsschutz Nordrhein-Westfalen. Red. Bearb.: Robert Niesenhaus]
Y1  - 1993
N1  - LIS-Berichte ; 110 ;
SP  - 117
CY  - Essen
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Nieren, Monika
A1  - Hoffmann, Katharina
A1  - Gäb, Martina
T1  - Schnellerfassung der Wirkung von Luftschadstoffen auf Pflanzen mit der Nahinfrarotspektroskopie (NIRS). Untersuchung Ammoniak exponierter Gräser und Kräuter  / Nieren, Monika ; Hoffmann, Katharina ; Gäb, Martina ; Ooyen, Sven van ; Köllner, Barbara ; Elbe
JF  - Immissionsschutz. 13 (2008), H. 2
Y1  - 2008
SN  - 1430-9262
SP  - 82
EP  - 90
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Muratyan, Simone
T1  - Problematik verkehrsbezogener Außenluftmessungen von Partikeln (Dieselruß)
JF  - + Krebserzeugende Stoffe in der Umwelt : Herkunft, Messung, Risiko, Minimierung ; Kolloquium Mannheim, 23. bis 25. April 1991 / Kommission Reinhaltung der Luft im VDI und DIN
Y1  - 1991
SN  - 3-18-090888-2
N1  - VDI-Berichte ; 888
SP  - 143
PB  - VDI-Verl.
CY  - Düsseldorf
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Lehmann, G.
T1  - Electron paramagnetic resonance of Vanadyl ion impurities in crystalline solids: A comment
JF  - Journal of Physics and Chemistry of Solids. 46 (1985), H. 6
Y1  - 1985
SN  - 0022-3697
SP  - 761
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Lehmann, G.
T1  - Electron Paramagnetic Resonance and Optical Absorption Spectra of VO2+ in CsCl Single Crystals
JF  - Zeitschrift für Naturforschung / Section A, a journal of physical sciences. 40 (1985)
Y1  - 1985
SN  - 0932-0784
SP  - 511
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Gäb, Martina
A1  - Hoffmann, Katharina
A1  - Lobe, Melanie
T1  - NIR-spectroscopic investigation of foliage of ozone-stressed Fagus sylvatica trees / Gäb, Martina ; Hoffmann, Katharina ; Lobe, Melanie ; Metzger, Rut ; Ooyen, Sven van ; Elbers, Gereon ; Köllner, Barbara
JF  - Journal of Forest Research. 11 (2006), H. 2
Y1  - 2006
SN  - 1341-6979
SP  - 69
EP  - 75
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Buck, Manfred
T1  - Soot Concentration in Ambient Air / M. Buck, G. Elbers
JF  - Erdöl & Kohle, Erdgas, Petrochemie : EKEP. 45 (1992)
Y1  - 1992
SN  - 0014-0058
SP  - 219
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Behner, T.
A1  - Remme, S.
A1  - Prissok, F.
T1  - Interstitial Metal Impurities as a Possible Cause of Enhanced Reactivities / T. Behner, G. Elbers, S. Remme, F. Prissok, P. Stegger, and G. Lehmann
JF  - Berichte der Bunsen-Gesellschaft : physical chemistry, chemical physics. 90 (1986)
Y1  - 1986
SN  - 0005-9021
SP  - 698
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Bauer, H. D.
A1  - Buck, Manfred
A1  - Dahmann, D.
T1  - Rußmessungen am Arbeitsplatz und in der Außenluft - Vergleich zweier Meßmethoden  / H.D. Bauer, M. Buck, D. Dahmann, G. Elbers, H.-H. Fricke
JF  - Staub, Reinhaltung der Luft : air quality control. 54 (1994)
Y1  - 1994
SN  - 0039-0771
SP  - 55
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
T1  - Identification of marker peptides in hair for discrimination with regard to species and breed / Koerner, Andrea ; Ring, Maike ; Fabry, Marlies ; Elbers, Gereon ; Moeller, Martin
JF  - Proceedings of the Aachen-Dresden International Textile Conference, 3rd, Aachen, Germany, Nov. 26-27, 2009
Y1  - 2009
N1  - Aachen-Dresden International Textile Conference ; (3 : ; 2009.11.26-27 : ; Aachen)
PB  - DWI
CY  - Aachen
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
T1  - Messung von Ruß in der Außenluft - Praktische Erfahrungen und Meßergebnisse aus NRW
JF  - Aktuelle Aufgaben der Messtechnik in der Luftreinhaltung : Kolloquium Heidelberg, 2. bis 4. Juni 1993 / Kommission Reinhaltung der Luft im VDI und DIN
Y1  - 1993
SN  - 3-18-091059-3
N1  - VDI-Berichte ; 1059
SP  - 337
PB  - VDI-Verl.
CY  - Düsseldorf
ER  - 
TY  - JOUR
A1  - El-Deib, Khaled
A1  - Butenweg, Christoph
A1  - Klinkel, Sven
T1  - Erdbebennachweis von Mauerwerksbauten mit realistischen Modellen und erhöhten Verhaltensbeiwerten
JF  - Bautechnik
N2  - Die Anwendung des linearen Nachweiskonzepts auf Mauerwerksbauten führt dazu, dass bereits heute Standsicherheitsnachweise für Gebäude mit üblichen Grundrissen in Gebieten mit moderaten Erdbebeneinwirkungen nicht mehr geführt werden können. Diese Problematik wird sich in Deutschland mit der Einführung kontinuierlicher probabilistischer Erdbebenkarten weiter verschärfen. Aufgrund der Erhöhung der seismischen Einwirkungen, die sich vielerorts ergibt, ist es erforderlich, die vorhandenen, bislang nicht berücksichtigten Tragfähigkeitsreserven in nachvollziehbaren Nachweiskonzepten in der Baupraxis verfügbar zu machen. Der vorliegende Beitrag stellt ein Konzept für die gebäudespezifische Ermittlung von erhöhten Verhaltensbeiwerten vor. Die Verhaltensbeiwerte setzen sich aus drei Anteilen zusammen, mit denen die Lastumverteilung im Grundriss, die Verformungsfähigkeit und Energiedissipation sowie die Überfestigkeiten berücksichtigt werden. Für die rechnerische Ermittlung dieser drei Anteile wird ein nichtlineares Nachweiskonzept auf Grundlage von Pushover-Analysen vorgeschlagen, in denen die Interaktionen von Wänden und Geschossdecken durch einen Einspanngrad beschrieben werden. Für die Bestimmung der Einspanngrade wird ein nichtlinearer Modellierungsansatz eingeführt, mit dem die Interaktion von Wänden und Decken abgebildet werden kann. Die Anwendung des Konzepts mit erhöhten gebäudespezifischen Verhaltensbeiwerten wird am Beispiel eines Mehrfamilienhauses aus Kalksandsteinen demonstriert. Die Ergebnisse der linearen Nachweise mit erhöhten Verhaltensbeiwerten für dieses Gebäude liegen deutlich näher an den Ergebnissen nichtlinearer Nachweise und somit bleiben übliche Grundrisse in Erdbebengebieten mit den traditionellen linearen Rechenansätzen nachweisbar.
Y1  - 2020
U6  - https://doi.org/10.1002/bate.202000016
VL  - 97
IS  - 11
SP  - 756
EP  - 765
PB  - Ernst & Sohn
CY  - Berlin
ER  -