TY  - JOUR
A1  - Wilbring, Daniela
A1  - Enning, Manfred
A1  - Pfaff, Raphael
A1  - Schmidt, Bernd
T1  - Neue Perspektiven für die Bahn in der Produktions- und Distributionslogistik durch Prozessautomation
JF  - ETR - Eisenbahntechnische Rundschau
Y1  - 2020
SN  - 0013-2845
VL  - 69
IS  - 3
SP  - 15
EP  - 19
ER  - 
TY  - JOUR
A1  - Wild, Dominik
A1  - Schrezenmeier, Johannes
A1  - Czupalla, Markus
A1  - Förstner, Markus
T1  - Thermal Characterization of additive manufactured Integral Structures for Phase Change Applications
JF  - 2020 International Conference on Environmental Systems
N2  - “Infused Thermal Solutions” (ITS) introduces a method for passive thermal control to stabilize structural components thermally without active heating and cooling systems, by using phase change material (PCM) in combination with lattice – both embedded into an additive manufactured integral structure. The technology is currently under development. This paper presents the results of the thermal property measurements performed on additive manufactured ITS breadboards. Within the breadboard campaigns key characteristics of the additive manufactured specimens were derived: Mechanical parameters: specimen impermeability, minimum wall thickness, lattice structure, subsequent heat treatment. Thermal properties: thermo-optical surface properties of the additive manufactured raw material, thermal conductivity and specific heat capacity measurements. As a conclusion the paper introduces an overview of potential ITS hardware applications, expected to increase the thermal performance.
Y1  - 2020
PB  - Texas Tech University
ER  - 
TY  - JOUR
A1  - Wollbrink, Moritz
A1  - Maslo, Semir
A1  - Zimmer, Daniel
A1  - Abbas, Karim
A1  - Arntz, Kristian
A1  - Bergs, Thomas
T1  - Clamping and substrate plate system for continuous additive build-up and post-processing of metal parts
JF  - Procedia CIRP
N2  - The manufacturing share of laser powder bed fusion (L-PBF) increases in industrial application, but still many process steps are manually operated. Additionally, it is not possible to achieve tight dimensional tolerances or low surfaces roughness. Hence, a process chain has to be set up to combine additive manufacturing (AM) with further machining technologies. To achieve a continuous workpiece flow as basis for further industrialization of L-PBF, the paper presents a novel substrate system and its application on L-PBF machines and post-processing. The substrate system consists of a zero-point clamping system and a matrix-like interface of contact pins to be substantially connected to the workpiece within the L-PBF process.
Y1  - 2020
U6  - http://dx.doi.org/10.1016/j.procir.2020.04.015
SN  - 2212-8271
VL  - 93
SP  - 108
EP  - 113
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Özsoylu, Dua
A1  - Kizildag, Sefa
A1  - Schöning, Michael Josef
A1  - Wagner, Torsten
T1  - Differential chemical imaging of extracellular acidification within microfluidic channels using a plasma-functionalized light-addressable potentiometric sensor (LAPS)
JF  - Physics in Medicine
N2  - Extracellular acidification is a basic indicator for alterations in two vital metabolic pathways: glycolysis and cellular respiration. Measuring these alterations by monitoring extracellular acidification using cell-based biosensors such as LAPS plays an important role in studying these pathways whose disorders are associated with numerous diseases including cancer. However, the surface of the biosensors must be specially tailored to ensure high cell compatibility so that cells can represent more in vivo-like behavior, which is critical to gain more realistic in vitro results from the analyses, e.g., drug discovery experiments. In this work, O2 plasma patterning on the LAPS surface is studied to enhance surface features of the sensor chip, e.g., wettability and biofunctionality. The surface treated with O2 plasma for 30 s exhibits enhanced cytocompatibility for adherent CHO–K1 cells, which promotes cell spreading and proliferation. The plasma-modified LAPS chip is then integrated into a microfluidic system, which provides two identical channels to facilitate differential measurements of the extracellular acidification of CHO–K1 cells. To the best of our knowledge, it is the first time that extracellular acidification within microfluidic channels is quantitatively visualized as differential (bio-)chemical images.
Y1  - 2020
U6  - http://dx.doi.org/10.1016/j.phmed.2020.100030
SN  - 2352-4510
VL  - 10
IS  - 100030
PB  - Elsevier
CY  - Amsterdam
ER  -