@inproceedings{VersenTreichlKalteneckeretal.2018, author = {Versen, Martin and Treichl, R. and Kaltenecker, M. and El Shahawy, H. and Thomas, T. T.}, title = {Differentielle LVDS Schnittstelle f{\"u}r modellbasierte Entw{\"u}rfe mit MathWorks HDL Coder}, series = {15. AALE Konferenz zu Cyberphysischen Produktionssystemen, 2018}, booktitle = {15. AALE Konferenz zu Cyberphysischen Produktionssystemen, 2018}, publisher = {VDE-Verlag}, address = {Berlin}, isbn = {978-3-8007-4522-7}, year = {2018}, language = {de} } @inproceedings{StoettnerSeliger2018, author = {Stoettner, Julia and Seliger, Norbert}, title = {Ring resonator based signal and power transfer at UHF frequencies}, series = {6th International EURASIP Workshop on RFID Technology (EURFID)}, booktitle = {6th International EURASIP Workshop on RFID Technology (EURFID)}, publisher = {IEEE}, pages = {8}, year = {2018}, abstract = {We present low-cost, high-efficient electromagnetic coupling between open ring geometry and a so-called butterfly structure on standard printed circuit boards (FR4) for the purpose of short range wireless data and power transfer at an UHF resonance frequency of 868 MHz. The components of the transfer system are characterized by simulation and experiments in terms of associated scattering parameters. Characterizing the efficiency of the coupled resonators, RF signal power transmission is examined for high power transfer as well as for low power DC supply utilizing a voltage doubler rectifier. With an enhanced butterfly structure coupler, unmodulated RF power transmission of 17.3 W is achieved with an efficiency of more than 95\%. Furthermore, signal transmission of Pulse-Width-Modulated (PWM) signals with frequencies up to 5 MHz is demonstrated.}, language = {en} } @inproceedings{SchneiderPflaumGottschalketal.2018, author = {Schneider, S. and Pflaum, D. and Gottschalk, L. and Schulze, Achim and H{\"u}ttl, B.}, title = {Laborgenaue elektrische Charakterisierungen von PV-Modulen unter Feldbedingungen}, series = {1. Regenerative Energietechnik Konferenz in Nordhausen}, booktitle = {1. Regenerative Energietechnik Konferenz in Nordhausen}, publisher = {RET.con 2018}, address = {Nordhausen}, year = {2018}, abstract = {Outdoor-I-U-Messungen an Photovoltaik- (PV) - Modulen haben den Vorteil, dass Effekte wie „light soaking" oder „light-induced degradation" unter nat{\"u}rlichen Bedingungen untersucht werden k{\"o}nnen. Solche Outdoor-Analysen k{\"o}nnen unter Anwendung des Selbstreferenzierungsalgorithmus (SRA) die Zuverl{\"a}ssigkeit von Indoor-Flasher-Messungen erreichen. Dieses neue Konzept liefert I-UEigenschaften f{\"u}r wesentlich mehr Testbedingungen als vom Standard IEC 61853 gefordert und so k{\"o}nnen Schwachlichtkurven aller relevanten elektrischen I-U-Parameter f{\"u}r bestimmte Temperaturen erzeugt werden. Wir berichten {\"u}ber experimentelle Ergebnisse einer 6-t{\"a}gigen Outdoor-Messkampagne an D{\"u}nnschicht-PV-Modulen. Wir evaluieren dar{\"u}ber hinaus die M{\"o}glichkeiten, Temperaturkoeffizienten, STC- und NOCT-Daten zu bestimmen und I-U-Kennlinien als Basis f{\"u}r Fitting-Analysen abzuleiten. Abschließend wird die Genauigkeit der neuen Outdoor-Methode untersucht.}, language = {de} } @inproceedings{RagaiSchwabenbauerEseretal.2018, author = {Ragai, and Schwabenbauer, and Eser, and M{\"u}ller,}, title = {Effect of Process Parameters on the Electrically-Assisted Sintered Iron-Copper Powder Metals}, series = {ASME 2018 International Mechanical Engineering Congress and Exposition}, booktitle = {ASME 2018 International Mechanical Engineering Congress and Exposition}, editor = {ASME,}, isbn = {978-0-7918-5201-9}, doi = {10.1115/IMECE2018-86891}, pages = {5}, year = {2018}, abstract = {Electric-current-assisted sintering (ECAS) is a novel process that can potentially replace the conventional sintering method. It is hypothesized that the process can reduce the sintering time and can be used in situ; thus, can be more cost effective. The purpose of this research is to investigate the effect of direct current on the sintered properties of iron-copper powder metal. Experiments were conducted at various conditions to determine the optimal process parameters for this particular powder metal. The parameters investigated were electric current levels and energizing time. Experiments also included sintering the powder using a conventional furnace. Samples from both types of experiments were compared to determine the metallurgical differences due to the sintering process. Mechanical and microstructure examination were conducted to aid in determining the feasibility of ECAS.}, language = {en} } @inproceedings{MonsbergerLienhartMarteetal.2018, author = {Monsberger, Christoph and Lienhart, Werner and Marte, Roman and Hirschm{\"u}ller, Sebastian}, title = {Monitoring of soil nailed slope stabilizations using distributed fiber optic sensing}, series = {Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2018}, volume = {10598}, booktitle = {Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2018}, editor = {Sohn, Hoon}, doi = {10.1117/12.2296674}, year = {2018}, abstract = {Soil nailing systems are a common way to stabilize slopes and construction pits. Their design is usually based on the mechanical equilibrium of a rigid body motion and therefore, only tensile stresses are considered and accompanying forces like bending (shear stresses) in the soil nails are neglected. Continuous strain measurements along nails could verify this assumption, but may not be performed using conventional sensing technologies. This paper reports about monitoring of a soil nailed slope stabilization using distributed fiber optic sensing. Soil nails in different anchoring horizons were instrumented and autonomously monitored over several weeks, in which the construction pit was excavated continuously. After the excavation, the final load bearing capacity of one selected nail was determined within a classical geotechnical load test. In addition to the field measurements, the bending behavior of the instrumented nail system was analyzed under laboratory conditions. The presented studies demonstrate the high potential of distributed fiber optic sensing systems and their capability to extend traditional measurement methods in foundation engineering applications.}, language = {en} } @inproceedings{KrauseStroblWirnsberger2018, author = {Krause, Harald and Strobl, Thomas and Wirnsberger, Markus}, title = {Einfache L{\"u}ftungssysteme f{\"u}r Wohngeb{\"a}ude - Untersuchungen in einer Forschungswohnung}, series = {Konferenzband Int. Passivhaustagung 2018}, booktitle = {Konferenzband Int. Passivhaustagung 2018}, organization = {Passivhaus Institut Darmstadt/Innsbruck}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:861-opus4-9492}, pages = {7}, year = {2018}, abstract = {Besonders einfache L{\"u}ftungssysteme sind heute vor allem in der Sanierung wichtig. In einer Vielzahl von Messreihen hat sich gezeigt, dass das System der zentralen Zulufteinbringung mit Verteilung {\"u}ber aktive {\"U}berstr{\"o}mer im Hinblick auf den Schadstoffaufbau und der sich einstellenden Luftqualit{\"a}t ausreichend funktioniert.}, language = {de} } @inproceedings{Krause2018, author = {Krause, Harald}, title = {Die neue Fassung der DIN 1946 Teil 6}, series = {Tagungsband Rosenheimer Fenstertage 2018}, booktitle = {Tagungsband Rosenheimer Fenstertage 2018}, publisher = {ift Rosenheim}, address = {Rosenheim}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:861-opus4-13112}, pages = {1 -- 4}, year = {2018}, abstract = {Der L{\"u}ftung von Wohnr{\"a}umen und damit der Versorgung von Menschen mit guter Luftqualit{\"a}t wird immer noch eine relative geringe Bedeutung beigemessen. Das ist umso bemerkenswerter als wir einen Großteil unserer Lebenszeit in geschlossenen R{\"a}umen verbringen. Die g{\"u}ltige DIN 1946 Teil 6 regelt zum einen den nutzerun¬abh{\"a}ngigen Luftwechsel zum Feuchteschutz und legt zum andere Planungsvorgaben f{\"u}r einen hygienischen Luftwechsel fest. Die wesentliche Neuerung in dieser Norm aus dem Jahre 2009 war die verpflichtende Sicherstellung des Luftwechsels zum Feuchteschutz ohne Nutzereingriff f{\"u}r jeden Neubau und bei l{\"u}ftungs¬technisch relevanten Sanierungen. Das Geb{\"a}ude oder die Wohnung muss diesen Mindestluftwechsel von selbst sicherstellen. Reicht dazu der Infiltrationsluftwechsel durch Leckagen nicht aus, sind geeignete l{\"u}ftungstech¬nische Maßnahmen zu planen und umzusetzen. Somit wurde f{\"u}r Wohnungen die Erstellung eines L{\"u}ftungskonzeptes n{\"o}tig. In der {\"u}berarbeiteten Norm wurde dieses Grund¬prinzip beibehalten. Einige der wesentlichen {\"A}nderungen sind: • Neue Berechnung der Infiltration und der Luft¬volumenstr{\"o}me zur Ermittlung der Notwen¬digkeit einer l{\"u}ftungstechnischen Maßnahme. • Bei der Berechnung der Volumenstr{\"o}me werden typische Belegungsdichten der Nut-zungseinheiten ber{\"u}cksichtigt. • Neuaufnahme und definierte Beschreibung von kombinierten L{\"u}ftungssystemen, z.B. Kombinationen aus freier und ventilatorge-st{\"u}tzter Systeme. {\"U}ber die Auswirkungen der neuen Berechnungs¬ans{\"a}tze insbesondere auf die Fensterl{\"u}ftung berichtet der Vortrag.}, language = {de} } @inproceedings{GoellerWenningerSchmidt2018, author = {Goeller, Toni and Wenninger, Marc and Schmidt, Jochen}, title = {Towards Cost-Effective Utility Business Models - Selecting a Communication Architecture for the Rollout of New Smart Energy Services}, series = {Proceedings of the 7th International Conference on Smart Cities and Green ICT Systems - Volume 1: SMARTGREENS}, booktitle = {Proceedings of the 7th International Conference on Smart Cities and Green ICT Systems - Volume 1: SMARTGREENS}, publisher = {SciTePress}, isbn = {978-989-758-292-9}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:861-opus4-8332}, pages = {231 -- 237}, year = {2018}, abstract = {The IT architecture for meter reading and utility services is at the core of new business models and has a decisive role as an enabler for resource efficiency measures. The communication architecture used by those services has significant impact on cost, flexibility and speed of new service rollout. This article describes how the dominant system model for meter reading came about, what alternative models exist, and what trade-offs those models have for rollout of new services by different stakeholders. Control of a self learning home automation system by dynamic tariff information (Real-Time-Pricing) is given as an application example.}, language = {en} } @inproceedings{Botzum2018, author = {Botzum, Edeltraud}, title = {Das Modell "Studium mit vertiefter Praxis" im Studiengang Soziale Arbeit.}, series = {11. Deutsch-Chinesisches Symposium zur anwendungsorientierten Hochschulausbildung. Hefei Universit{\"a}t, China (Anhui), Oktober 2018.}, booktitle = {11. Deutsch-Chinesisches Symposium zur anwendungsorientierten Hochschulausbildung. Hefei Universit{\"a}t, China (Anhui), Oktober 2018.}, year = {2018}, language = {de} }