TY - JOUR A1 - Lienland, Bernhard A1 - Kellner, Florian T1 - Projektauswahl mit der linearen Optimierung im Mittelstand JF - HMD - Praxis der Wirtschaftsinformatik N2 - Die Projektauswahl stellt eine Herausforderung insbesondere für mittelständische Industrieunternehmen dar. Abhängigkeiten verschiedener Alternativen und vorgegebene Investitionsbudgets führen bei Anwendung von in der Praxis standardmäßig eingesetzten Verfahren regelmäßig zu suboptimalen Projektkombinationen. In enger Abstimmung mit einem Automobilzulieferer wurde ein Ansatz zur Projektauswahl unter Berücksichtigung von Ressourcen und laufenden Projekten entwickelt sowie technisch umgesetzt. Implementierte Praxistests belegen Verbesserungen bei der Projektauswahl, aber auch bei der Budgeteinhaltung, der Fixkostenreduzierung sowie der Angebotspreisbestimmung. Y1 - 2012 U6 - https://doi.org/10.1007/BF03340699 VL - 49 IS - 3 SP - 52 EP - 62 ER - TY - JOUR A1 - Kellner, Florian A1 - Otto, Andreas T1 - Allocating CO2 emissions to shipments in road freight transportation JF - Journal of Management Control N2 - Logistic activity, in particular transportation, produces green house gases (GHG). For different purposes GHG need to be allocated to objects. This paper studies how to allocate the GHG volume of a transportation process (delivery tour) to the single shipments moved by the process. First, it identifies classes of generic allocation schemes and presents 15 allocation methods. Second, since the majority of these methods has not been designed for allocating GHG, we apply and compare them in the short distance transport context within a numerical example. The aim is to study how the schemes perform according to criteria. We suggest using causality, efficiency, empty core robustness, symmetry, individual rationality, coalition stability, ease of application, and set robustness as appraisal criteria and attempt to mainstream the discussion by recommending selected allocation methods. KW - CO2/GHG allocation KW - Emissions from road freight transportation KW - CO2/GHG emission drivers KW - Emission/CO2/GHG shipment allocation Y1 - 2012 U6 - https://doi.org/10.1007/s00187-011-0143-6 VL - 22 IS - 4 SP - 451 EP - 479 ER - TY - JOUR A1 - Kellner, Florian A1 - Igl, Johannes T1 - Estimating the effect of changing retailing structures on the greenhouse gas performance of FMCG distribution networks JF - Logistics Research N2 - The assessment of greenhouse gas (GHG) emissions of supply chain activities is performed to create transparency across the supply chain and to identify emission-cutting opportunities. Literature provides several generic and case study approaches to estimate GHG emissions. But research often focuses on products. This paper sheds light on how the greenhouse performance of a fast-moving consumer goods (FMCG) distribution network depends on several (FMCG specific) variables to set up a “CO2 network footprint”. Within a quantitative computational study, the distribution network footprint of an existing FMCG manufacturer is analyzed. Three options being fundamentally able to reduce total GHG emissions are identified: number of distribution centers, performance of the engaged logistics service provider and shipment structure. First, transportation processes for the investigated FMCG manufacturer are analyzed to derive GHG emissions caused by different distribution shipments. Second, initial data are manipulated to simulate variable changes, that is, different logistics structures. Third, results are reported and analyzed to show up how different changes in logistics structures may reduce GHG, without technological propulsion or use of regenerative energy. KW - Fast-moving consumer goods (FMCG); Distribution network analysis; GHG/CO2 network analysis; Carbon network footprint; Carbon performance Y1 - 2012 U6 - https://doi.org/10.1007/s12159-012-0063-3 VL - 4 IS - 3-4 SP - 87 EP - 99 ER - TY - CHAP A1 - Kellner, Florian A1 - Otto, Andreas A1 - Busch, Andreas ED - Ivanov, Dimitri ED - Sokolov, Boris ED - Käschel, Joachim T1 - Distribution Networks - Rigid Investments In Dynamic Environments T2 - Flexibility and adaptability of global supply chains - Proceedings of the 7th German-Russian Logistics Workshop (DR-LOG 2012) Y1 - 2012 SP - 103 EP - 111 ER - TY - JOUR A1 - Kellner, Florian A1 - Otto, Andreas A1 - Busch, Andreas T1 - Understanding the robustness of optimal FMCG distribution networks JF - Logistics Research N2 - Distribution network design is about recommending long-term network structures in an environment where logistic variables like transportation costs or retailer order sizes dynamically change over time. The challenge for management is to recommend an optimal network configuration that will allow for longer term optimal results despite of environmental turbulences. This paper studies the robustness of cost-optimized FMCG (fast-moving consumer goods) distribution networks. It aims at observing the impact of changing variables/conditions on optimized logistic structures in terms of the optimal number and geographical locations of existing distribution centers. Five variables have been identified as relevant to the network structure. A case study approach is applied to study the robustness of an existing, typical, and optimized FMCG network. First, distribution network data of a German manufacturer of FMCG are recorded and analyzed. A quantitative model is set up to reflect the actual cost structure. Second, a cost optimal network configuration is determined as a benchmark for further analysis. Third, the variables investigated are altered to represent changes, both isolated (ceteris paribus) and in combination (scenario analysis). Each one of the variables investigated proves to be fundamentally able to suggest a change of the optimal network structure. However, the scenario analysis indicates that the expected changes will by and large compensate each other, leaving the network in near optimal condition over an extended period of time. KW - Distribution logistics; Retailing logistics; Fast-moving consumer goods (FMCG); Distribution network analysis; Facility location Y1 - 2012 U6 - https://doi.org/10.1007/s12159-012-0097-6 VL - 6 IS - 4 SP - 173 EP - 185 ER - TY - CHAP A1 - Engelhard, Johann A1 - Fleischmann, Carolin A1 - Renker, Laura-Christiane ED - Petrovic, Otto ED - Schlögl, Christian ED - Reichmann, Gerhard T1 - Fremdsprachenkompetenz in multikulturellen Teams - Inter-Sprache und Interkultur T2 - Informationswissenschaft : Begegnungen mit Wolf Rauch Y1 - 2012 SN - 978-3-205-78799-0 SP - 103 EP - 118 PB - Böhlau CY - Wien ER - TY - CHAP A1 - Seliger, Norbert T1 - Zuverlässigkeit mechatronischer Systeme: Bewertung der Lebensdauer der Leistungselektronik T2 - Internationales Forum Mechatronik KW - Lebensdauer Kondensatoren KW - Zuverlässigkeit KW - PFC KW - Reliability Y1 - 2012 ER - TY - CHAP A1 - Weidner, Karl A1 - Kaspar, Michael A1 - Seliger, Norbert T1 - Planar Interconnect Technology for Power Module System Integration T2 - 7th International Conference on Integrated Power Electronics Systems (CIPS) N2 - The recent developments in power semiconductor devices and increasing demands on reliability as well as on operation performance require innovative package technologies. Such a novel package technique based on a Planar Interconnect Technology (SiPLIT®) for power modules is introduced in this work. This package features thick Cu interconnects on a high-reliable insulating film for power semiconductor chip top contacts. Due to the conductor structure and contact technology, on-resistance and stray inductances are very low compared to state-of-the-art Al wire bonds. In addition, large area contacting improves the power cycling capability and surge current robustness significantly. These remark-able properties have been verified on several prototype modules where the manufacturing process has also been optimised in terms of cost-effectiveness, system integration and maturity for series production. KW - planar interconnect technology KW - power module system integration KW - power semiconductor devices KW - reliability KW - innovative package KW - SiPLIT KW - power cycling capability Y1 - 2012 SP - 13.1 PB - VDE-VERLAG GMBH ER - TY - JOUR A1 - Schäfle, Claudia A1 - Lux, Christine A1 - Feldmeier, Franz T1 - Untersuchung des Gesamtenergiedurchlassgrades an gebäudeintegrierbaren, teiltransparenten Photovoltaik- Modulen bei elektrischer Leistungsentnahme JF - Bauphysik N2 - Der Gesamtenergiedurchlassgrad (g-Wert) verschiedener teiltransparenter, gebäudeintegrierbarer Photovoltaik-Module wurde mit und ohne Entnahme elektrischer Leistung kalorimetrisch gemessen. Durch die Leistungsentnahme sinkt die Oberflächentemperatur des Moduls um bis zu 4 K. Gleichzeitig reduziert sich der g-Wert aufgrund der geringeren sekundären Wärmeabgabe. Die Größe der Abnahme hängt von der entnommenen Leistung ab und stimmt sehr gut mit einem einfachen, auf dem Energiesatz basierenden Rechenmodell überein. N2 - Investigation of the total solar energy transmittance on buildingintegrated, semitransparent photovoltaic modules with and without extraction of electrical power. The total solar energy transmittance (g-value) of different building-integrated PV-elements has been measured with and without extracting electrical power from the module. When extracting energy, a reduction in the gvalue has been measured. Moreover, a reduction in temperature up to 4 K on the inner surface is observed. The experimental results are in very good agreement with a physical model based on energy conservation. KW - g-Wert KW - Photovoltaik KW - Building-integrated PV-modules KW - total solar energy transmittance KW - building physics Y1 - 2012 UR - https://doi.org/10.1002/bapi.201200019 VL - 34 IS - 4 SP - 153 EP - 165 ER - TY - GEN A1 - Grischa, Günther A1 - Muscat, Dirk T1 - Veröffentlichte Internationale Patentanmeldung WO2012156349A3 BT - VERFAHREN ZUR HERSTELLUNG VON GEGENSTÄNDEN MIT IN GIESSHARZ EINGEGOSSENEN INKLUSIONEN, SOWIE GEGOSSENE GEGENSTÄNDE KW - Giessharz Y1 - 2021 ER -