@article{TreyerKleinKoenigetal., author = {Treyer, Lukas and Klein, Bernhard and K{\"o}nig, Reinhard and Meixner, Christine}, title = {Lightweight Urban Computation Interchange (LUCI): A System to Couple Heterogenous Simulations and Views}, series = {Spatial Information Research}, journal = {Spatial Information Research}, doi = {10.25643/bauhaus-universitaet.2603}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160622-26037}, pages = {1 -- 12}, abstract = {In this paper we introduce LUCI, a Lightweight Urban Calculation Interchange system, designed to bring the advantages of calculation and content co-ordination system to small planning and design groups by the means of an open source middle-ware. The middle-ware focuses on problems typical to urban planning and therefore features a geo-data repository as well as a job runtime administration, to coordinate simulation models and its multiple views. The described system architecture is accompanied by two exemplary use cases, that have been used to test and further develop our concepts and implementations.}, language = {en} } @article{LahmerBockHildebrandetal., author = {Lahmer, Tom and Bock, Sebastian and Hildebrand, J{\"o}rg and G{\"u}rlebeck, Klaus}, title = {Non-destructive identification of residual stresses in steel under thermal loadings}, series = {Inverse Problems in Science and Engineering}, journal = {Inverse Problems in Science and Engineering}, pages = {1 -- 17}, abstract = {Non-destructive identification of residual stresses in steel under thermal loadings}, subject = {Angewandte Mathematik}, language = {en} } @article{FrommholzHaiderMPotthastetal., author = {Frommholz, Ingo and Haider M., al-Khateeb and Potthast, Martin and Ghasem, Zinnar and Shukla, Mitul and Short, Emma}, title = {On Textual Analysis and Machine Learning for Cyberstalking Detection}, series = {Datenbank Spektrum}, journal = {Datenbank Spektrum}, doi = {10.1007/s13222-016-0221-x}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170418-31352}, pages = {127 -- 135}, abstract = {Cyber security has become a major concern for users and businesses alike. Cyberstalking and harassment have been identified as a growing anti-social problem. Besides detecting cyberstalking and harassment, there is the need to gather digital evidence, often by the victim. To this end, we provide an overview of and discuss relevant technological means, in particular coming from text analytics as well as machine learning, that are capable to address the above challenges. We present a framework for the detection of text-based cyberstalking and the role and challenges of some core techniques such as author identification, text classification and personalisation. We then discuss PAN, a network and evaluation initiative that focusses on digital text forensics, in particular author identification.}, subject = {Text Mining}, language = {en} } @article{ShiraziMohebbiAzadiKakavandetal., author = {Shirazi, A. H. N. and Mohebbi, Farzad and Azadi Kakavand, M. R. and He, B. and Rabczuk, Timon}, title = {Paraffin Nanocomposites for Heat Management of Lithium-Ion Batteries: A Computational Investigation}, series = {JOURNAL OF NANOMATERIALS}, journal = {JOURNAL OF NANOMATERIALS}, doi = {10.1155/2016/2131946}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170411-31141}, abstract = {Lithium-ion (Li-ion) batteries are currently considered as vital components for advances in mobile technologies such as those in communications and transport. Nonetheless, Li-ion batteries suffer from temperature rises which sometimes lead to operational damages or may even cause fire. An appropriate solution to control the temperature changes during the operation of Li-ion batteries is to embed batteries inside a paraffin matrix to absorb and dissipate heat. In the present work, we aimed to investigate the possibility of making paraffin nanocomposites for better heat management of a Li-ion battery pack. To fulfill this aim, heat generation during a battery charging/discharging cycles was simulated using Newman's well established electrochemical pseudo-2D model. We couple this model to a 3D heat transfer model to predict the temperature evolution during the battery operation. In the later model, we considered different paraffin nanocomposites structures made by the addition of graphene, carbon nanotubes, and fullerene by assuming the same thermal conductivity for all fillers. This way, our results mainly correlate with the geometry of the fillers. Our results assess the degree of enhancement in heat dissipation of Li-ion batteries through the use of paraffin nanocomposites. Our results may be used as a guide for experimental set-ups to improve the heat management of Li-ion batteries.}, subject = {Batterie}, language = {en} } @article{SmarslyHartmannRueppeletal., author = {Smarsly, Kay and Hartmann, Timo and R{\"u}ppel, Uwe and K{\"o}nig, Markus}, title = {Positionspapier des Arbeitskreis Bauinformatik}, editor = {Smarsly, Kay}, doi = {10.25643/bauhaus-universitaet.3221}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170523-32219}, pages = {5}, abstract = {Die Bauinformatik ist eine S{\"a}ule der modernen Bau- und Umweltingenieurwissenschaften und befasst sich mit der Erforschung grundlegender informatorischer Methoden sowie mit der Anwendung und Weiterentwicklung der Informationswissenschaften im Bau- und Umweltbereich. Der Arbeitskreis Bauinformatik konstituiert sich aus Wissenschaftlern, die an Universit{\"a}ten im deutschsprachigen Raum auf dem Fachgebiet Bauinformatik lehren und forschen. Ausgehend vom erreichten Entwicklungsstand der Bauinformatik skizziert dieses Positionspapier die Aufgaben des Arbeitskreises und formuliert eine Grundlage f{\"u}r eine abgestimmte Weiterentwicklung an den deutschsprachigen Universit{\"a}ten.}, subject = {Bauinformatik}, language = {de} } @article{DaubeMetzner, author = {Daube, Dirk and Metzner, Steffen}, title = {Priorisierung von energetischen Maßnahmen in heterogenen Immobilienportfolios - Am Beispiel eines Bestandes der {\"o}ffentlichen Hand}, series = {Zeitschrift f{\"u}r Immobilien{\"o}konomie}, journal = {Zeitschrift f{\"u}r Immobilien{\"o}konomie}, doi = {10.1365/s41056-016-0011-4}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170418-31332}, pages = {53 -- 79}, abstract = {In vielen {\"o}ffentlichen Geb{\"a}uden besteht ein hohes wirtschaftliches Einsparpotenzial bei den relevanten Energietr{\"a}gern W{\"a}rme und Strom. Projekte zur energetischen Optimierungen refinanzieren sich h{\"a}ufig nach wenigen Jahren. Die notwenigen Investitionsmittel stehen jedoch nur begrenzt zur Verf{\"u}gung. Zielgerichtete Analysen und Potenzialsch{\"a}tzungen sind erforderlich, um eine Priorisierung optionaler Maßnahmen zu erreichen. Die Studie zeigt anhand eines {\"o}ffentlichen Portfolios notwendige Untersuchungsschritte auf. Die Einzelpotenziale werden {\"u}ber geeignete Benchmarks ermittelt. Auf Portfolioebene werden u. a. spezifische Potenzial-Matrizen genutzt. Die kennzahlenbasierte Priorisierung von Maßnahmen ist umso wichtiger, je st{\"a}rker das Potenzial auf wenige Objekte konzentriert ist.}, subject = {{\"O}ffentlicher Sektor}, language = {de} } @article{MetznerSawitzky, author = {Metzner, Steffen and Sawitzky, Mareen}, title = {Priorisierung von Immobilienm{\"a}rkten mittels ELECTRE: Nutzung eines Outranking-Modells im taktischen Portfoliomanagement}, series = {Zeitschrift f{\"u}r Immobilien{\"o}konomie}, journal = {Zeitschrift f{\"u}r Immobilien{\"o}konomie}, doi = {10.1365/s41056-016-0017-y}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170425-31516}, pages = {121 -- 144}, abstract = {In Zeiten volatiler Immobilienm{\"a}rkte und einer hohen Wettbewerbsintensit{\"a}t sind leistungsf{\"a}hige Systeme der Analyse und Entscheidungsunterst{\"u}tzung unverzichtbar. Entscheidungen zu Investitionsstrategien und Einzelinvestitionen basieren zumeist auf mehreren entscheidungsrelevanten Kriterien. Unterschiedliche immobilienwirtschaftliche Entscheidungsalternativen k{\"o}nnen dabei durchaus Kriterienauspr{\"a}gungen aufweisen, die eine bestimmte Alternative nicht als stets besser bzw. stets schlechter ausweisen. Klassische finanzwirtschaftliche Modelle oder verbreitete qualitative Verfahren wie das Scoring k{\"o}nnen die gegebene Komplexit{\"a}t meist nicht angemessen ber{\"u}cksichtigen. Eine Weiterentwicklung immobilienwirtschaftlicher Entscheidungsmodelle ist durch die {\"U}bertragung und Spezifizierung multikriterieller Verfahren der Entscheidungsunterst{\"u}tzung m{\"o}glich. Speziell die Untergruppe des Outranking besch{\"a}ftigt sich mit der schrittweisen Strukturierung, Ordnung und Priorisierung von komplexen Auswahlalternativen. Als spezifische immobilienwirtschaftliche Fragestellung dient hier die Auswahl und Priorisierung von Zielm{\"a}rkten im taktischen Portfoliomanagement eines institutionellen Immobilienportfoliosmit internationaler Ausrichtung. Die Formalisierung des Entscheidungsproblems „Priorisierung von Zielm{\"a}rkten" erfolgt mit dem ELECTRE-Verfahren.}, subject = {Portfoliomanagement}, language = {de} } @article{Dressel, author = {Dressel, Dennys}, title = {Reaktivit{\"a}t von H{\"u}ttensand : Thermodynamische Grundlagen und Anwendung}, doi = {10.25643/bauhaus-universitaet.2677}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160829-26778}, pages = {178}, abstract = {Die thermodynamischen Grundlagen der Hydratation von H{\"u}ttensand als Hauptbestandteil von Zementen werden erforscht. Hierbei werden thermodynamische Bildungs- und Reaktionsdaten experimentell bestimmt und berechnet. Dar{\"u}ber hinaus wird der Prozess der Feststoffaufl{\"o}sung von H{\"u}ttensand in w{\"a}ssrigen L{\"o}sungen untersucht. L{\"o}sungs- und F{\"a}llungsprozesse werden unter verschiedenen Konditionen gemessen, ausgewertet und diskutiert. Die Ergebnisse werden im weiteren Verlauf zur Bestimmung der Hydratationsgrades in Pasten sowie zum besseren Verst{\"a}ndnis in der Wechselwirkung zwischen H{\"u}ttensanden und Mahlhilfsstoffen genutzt und angewandt.}, subject = {H{\"u}ttensand}, language = {de} } @article{MeelBrannolteSatirasetthaveeetal., author = {Meel, Inder P. and Brannolte, Ulrich and Satirasetthavee, Dussadee and Kanitpong, Kunnawee}, title = {Safety impact of application of auxiliary lanes at downstream locations of Thai U-turns}, series = {IATSS Research}, journal = {IATSS Research}, doi = {10.1016/j.iatssr.2016.06.002}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170401-31016}, abstract = {To assess the safety impact of auxiliary lanes at downstream locations of U-turns, the Traffic Conflict Technique was used. On the basis of the installed components at those locations, four types of U-turns were identified: those without any auxiliary lane, those with an acceleration lane, those with outer widening, and those with both an acceleration lane and outer widening. The available crash data is unreliable, therefore to assess the level of road safety, Conflict Indexes were formulated to put more emphasis on severe crashes than on slight ones by using two types of weighting coefficients. The first coefficient was based on the subjective assessment of the seriousness of the conflict situation and the second was based on the relative speed and angle between conflicting streams. A comparatively higher Conflict Index value represents a lower level of road safety. According to the results, a lower level of road safety occurs if two components apply or if a location is without any auxiliary lane. The highest level of road safety occurs if the layout includes only a single component, either an acceleration lane or outer widening.}, subject = {Verkehrssicherheit}, language = {en} } @article{KapsSchuchStaeblein, author = {Kaps, Christian and Schuch, Kai and St{\"a}blein, Stefan}, title = {Silicate coatings for concrete components with waterglass systems by means of neutral salt initiation}, doi = {10.25643/bauhaus-universitaet.2588}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160601-25888}, pages = {1 -- 14}, abstract = {The objective of the investigations was the proof of the use of the neutral salt initiation as a construction material in the protecting silicate coating of concrete components, e.g. factory finished parts or reinforced concrete construction parts, by means of waterglass fused silica suspensions}, subject = {Silicate}, language = {en} }