@misc{9210, abstract = {{In order to guarantee long lifetime and high performance of electrical contacts, a plating is usually applied on the base material. Silver is a promising plating material because of a good balance between performance and costs. The conventional silver plating is soft; therefore, a thick silver plating should be used to prevent the wear through during the operation. In order to enhance the wear resistance and prolong the lifetime of the silver plating, silver platings are modified by co-depositing nanoparticles with a core/shell structure into the silver matrix. A novel method to prepare the Ag (shell)@Al 2 O 3 (core) nanoparticles by galvanic process is introduced in this paper. The influence of fabrication parameters in the galvanic process such as the concentration of silver nitrate solution and the plating voltage on the silver content in the Ag@Al 2 O 3 nanoparticles is investigated. Afterwards, different concentrations of core/shell nanoparticles are co-deposited into the silver plating to study the effect of nanoparticles on the microhardness, microstructure and the lifetime of the silver plating. As a result, the microhardness and the lifetime of the silver plating are significantly improved and a favorable nanoparticle concentration exists for the longest lifetime. Moreover, the mechanism of the lifetime improvement is determined.}}, author = {{Yuan, Haomiao and Probst, Roman and Song, Jian}}, booktitle = {{Electrical contacts - 2022 : proceedings of the Sixty-Seventh IEEE Holm Conference on Electrical Contacts}}, isbn = {{978-1-6654-5966-2}}, issn = {{978-1-6654-5965-5}}, keywords = {{Nanoparticles, Resistance, Fabrication, Silver, Costs, Contacts, Voltage}}, location = {{ Tampa, FL, USA}}, pages = {{166 -- 173}}, publisher = {{IEEE}}, title = {{{Influence of Core/Shell Nanoparticles on the Fretting Behavior of Electrical Contacts}}}, doi = {{10.1109/HLM54538.2022.9969773}}, year = {{2022}}, } @inproceedings{560, abstract = {{In warehouse planning and dimensioning, many parameters and conditions have to be met and goals must be fulfilled, e.g. labor and investment costs, desired throughput and capacity, available material handling technologies and size constraints. These factors determine the ultimate choice of a particular alternative from a wide range of solution alternatives.On the one hand, the warehouse planning process is very complex and takes into account all different aspects of decision-making. On the other hand, it is expected that the planning period is shorter and shorter. To balance out the competing interests of accuracy and time, it is a promising approach to make use of computer-based planning tools. They can be used to find the most cost-efficientalternative and to visualize its layout.In addition, at the end of the planning process not only technologies and layout dimensions are specified, the warehouse layout with the rack configuration, the conveyors and the buildings should be visualized in three dimensions.It is a promising approach to integrate the detailed layout drawing through computer-aideddesign tools such as AutoCAD Inventor into warehouse planning process. Softwareis developed for detailed warehouse planning. The core modules of the software can generate a favorable warehouse alternative and an AutoCAD-Add-On for the visualization of the outcomes.With the planning tool,the planning period can be significantly shortened while simultaneously the planning quality, especially during the period of rough planning, increases.To balance out the competing interests of accuracy and time, it is a promising approach to make use ofcomputer-basedplanning tools. They can be used to find the most cost-efficientalternative and to visualize its layout.}}, author = {{Schulze, L. and Li, Li}}, booktitle = {{Production Engineering and Management}}, editor = {{Villmer, Franz-Josef and Padoano, Elio}}, isbn = {{978-3-946856-03-0}}, keywords = {{Warehouse planning, Layout configuration, Labor and investment costs}}, location = {{Lemgo}}, number = {{1}}, pages = {{233--242}}, title = {{{Digitized Planning with Visualization for Warehouse Layouts}}}, year = {{2018}}, } @inproceedings{590, abstract = {{Against the background of rising overhead costs in manufacturing companies the application of methods of overhead cost management is of increasing importance. Within this article existing approaches of cost management are explained in principle. Based on these approaches a new complementary approach of managing costs with the help of costs elasticity ratios is described by a case study. The method is based on the hypothesis that there are no fixed personnel costs, but personnel costs with different elasticity with respect to the volume of orders. Personnel costs elasticity (ε) is derived from the quotient of the relative change in personnel costs (k) and the relative change of the order volume (q) of a billing month (i). The method aims to increase the flexibility of overhead costs, but can also be applied with respect to so-called direct costs. In this case, the question arises as to what extent the direct costs actually develop proportional elastic over time.}}, author = {{Hinrichsen, Sven}}, booktitle = {{Production Engineering and Management}}, editor = {{Villmer, Franz-Josef and Padoano, Elio}}, isbn = {{978-3-946856-00-9}}, keywords = {{Cost management, Overhead costs, Direct costs, Labor costs, Elasticity}}, location = {{Lemgo}}, number = {{1}}, pages = {{123--131}}, title = {{{How Elasticity Indicators Support Cost Management}}}, year = {{2016}}, } @inproceedings{598, abstract = {{The aerospace sector is characterized by long product life cycles and a need for lightweight design. Additive manufacturing is a technology that produces parts layer by layer and thus enables the manufacturing of any complex parts at nearly no extra costs. A topology optimization enhances the part’s performance for their special purpose. The results are often complex bionic structures that cannot be produced with conventional manufacturing technologies. The paper analyzes how the high potential of this technologycan be applied to aerospace parts. A topology optimization will be conducted for an aircraft part explaining the crucial points and a life cycle analysis examines the achieved sustainable improvements for the aircraft’s life cycle. }}, author = {{Huxol, Andrea and Villmer, Franz-Josef}}, booktitle = {{Production Engineering and Management}}, editor = {{Padoano, Elio and Villmer, Franz-Josef}}, isbn = {{978-3-941645-11-0}}, keywords = {{Additive manufacturing, topology optimization, aerospace, life cycle costs}}, location = {{Trieste, Italy}}, number = {{1}}, pages = {{207--218}}, title = {{{Hybrid Manufacturing Machines: Combining Additive and Subtractive Manufacturing Technologies}}}, year = {{2015}}, } @inbook{5932, abstract = {{Groupage transports are frequently calculated based on freight rates assuming a declining rate with respect to volume and to transportation distance. This paper investigates the case of feeding many small shipments to customers via a freight forwarder network. It is argued that costs for post-carriage transport dominate other costs. Based on a theoretical estimate, simulation experiments for the case of a uniform distribution of customer locations around the subsidiary with a fixed shipment size per drop suggest that the aggregate costs grow progressively with increasing customer drop distances from the subsidiary. The resulting implications for transport modelling are discussed.}}, author = {{Boone, Nicholas and Quisbrock, Tim}}, booktitle = {{Advanced manufacturing and sustainable logistics : proceedings / 8th International Heinz Nixdorf Symposium, IHNS 2010, Paderborn}}, isbn = {{978-3-642-12461-7}}, keywords = {{cost-by-cause principle, freight forwarder, freight rates, network, overhead costs, pricing, simulation, transport}}, location = {{Paderborn}}, pages = {{332--344}}, publisher = {{Springer}}, title = {{{Modelling post-carriage transport costs in groupage networks}}}, doi = {{doi.org/10.1007/978-3-642-12494-5_30}}, year = {{2011}}, }