Results 31 to 40 of about 22,152 (50)

Gas Leak Detection by Dilution of Atmospheric Oxygen

Sensors, 2017
Gas leak detection is an important issue in infrastructure monitoring and industrial production. In this context, infrared (IR) absorption spectroscopy is a major measurement method. It can be applied in an extractive or remote detection scheme.
Armin Lambrecht, Eric Maier, Hans-Fridtjof Pernau, Thomas Strahl, Johannes Herbst   +4 more
doaj   +1 more source

Small-Sized Pulsating Heat Pipes/Oscillating Heat Pipes with Low Thermal Resistance and High Heat Transport Capability

Energies, 2020
Electronics (particularly power electronics) are the core element in many energy-related applications. Due to the increasing power density of electronic parts, the demands on thermal management solutions have risen considerably.
Markus Winkler, David Rapp, Andreas Mahlke, Felix Zunftmeister, Marc Vergez, Erik Wischerhoff, Jürgen Clade, Kilian Bartholomé, Olaf Schäfer-Welsen   +8 more
doaj   +1 more source

Investigation of Gasochromic Rhodium Complexes Towards Their Reactivity to CO and Integration into an Optical Gas Sensor for Fire Gas Detection

Sensors, 2018
The detection of the toxic gas carbon monoxide (CO) in the low ppm range is required in different applications. We present a study of the reactivity of different gasochromic rhodium complexes towards the toxic gas carbon monoxide (CO).
Carolin Pannek, Karina R. Tarantik, Katrin Schmitt, Jürgen Wöllenstein   +3 more
doaj   +1 more source

Resonant Photoacoustic Detection of NO₂ with an LED Based Sensor

Proceedings, 2018
In times of steadily increasing air pollution especially in urban areas, the monitoring of nitrogen dioxide (NO2) has gained in importance and with it the search for compact, low-cost sensors.
Christian Weber, Johannes Kapp, Katrin Schmitt, Hans-Fridtjof Pernau, Jürgen Wöllenstein   +4 more
doaj   +1 more source

Flexible Toolbox of High-Precision Microfluidic Modules for Versatile Droplet-Based Applications

Micromachines
Although the enormous potential of droplet-based microfluidics has been successfully demonstrated in the past two decades for medical, pharmaceutical, and academic applications, its inherent potential has not been fully exploited until now. Nevertheless,
Mario Saupe, Stefan Wiedemeier, Gunter Gastrock, Robert Römer, Karen Lemke   +4 more
doaj   +1 more source

Phase preservation of orbital angular momentum of light in multiple scattering environment

Light: Science & Applications
Recent advancements in wavefront shaping techniques have facilitated the study of complex structured light’s propagation with orbital angular momentum (OAM) within various media.
Igor Meglinski, Ivan Lopushenko, Anton Sdobnov, Alexander Bykov   +3 more
doaj   +1 more source

Using Auto-ML on Synthetic Point Cloud Generation

Applied Sciences
Automated Machine Learning (Auto-ML) has primarily been used to optimize network hyperparameters or post-processing parameters, while the most critical component for training a high-quality model, the dataset, is usually left untouched. In this paper, we
Moritz Hottong, Moritz Sperling, Christoph Müller   +2 more
doaj   +1 more source

Measurement of the Local Sound Pressure on a Bias-Flow Liner Using High-Speed Holography and Tomographic Reconstruction

IEEE Access, 2019
Bias-flow liners (BFL) are used as part of the cooling mechanism in airplane turbines and they also enable the reduction of noise emission. The attenuating principle is based on the interaction between sound waves and air flow.
Andres E. Ramos Ruiz, Johannes Gurtler, Robert Kuschmierz, Jurgen W. Czarske   +3 more
doaj   +1 more source

Improvement Methods for Colorimetric Gas Sensor for Use in Indoor Livestock Farming

Proceedings, 2019
Different published colorimetric sensors were investigated with the ultimate goal to develop a colorimetric sensor for a closed livestock farm, applicable in a rough environment. The methods were investigated to improve the lack of sensitivity, roughness,
Jan-Kees Boerman, Jan-Kees van Harberden, Carolin Pannek, Katrin Schmitt, Karina R. Tarantik, Marie-Luise Bauersfeld, Jürgen Wöllenstein   +6 more
doaj   +1 more source

Label-Free Detection and Characterization of Heparin-Induced Thrombocytopenia (HIT)-like Antibodies

ACS Omega, 2021
Nida Zaman Khan, Li-Yu Chen, Annerose Lindenbauer, Uwe Pliquett, Holger Rothe, Thi-Huong Nguyen   +5 more
doaj   +1 more source