A5007043571- Impact of Light on Environment and Health
- Integrated Energy Systems Optimization
- Hybrid Renewable Energy Systems
- Stellar, planetary, and galactic studies
- Catalysts for Methane Reforming
- Astro and Planetary Science
- Process Optimization and Integration
- Astronomy and Astrophysical Research
- Historical Astronomy and Related Studies
- Thermochemical Biomass Conversion Processes
- Ocular and Laser Science Research
- Electrocatalysts for Energy Conversion
- Planetary Science and Exploration
- Infrared Target Detection Methodologies
- Gamma-ray bursts and supernovae
- Historical and Architectural Studies
- Carbon Dioxide Capture Technologies
- Astrophysics and Star Formation Studies
- Catalytic Processes in Materials Science
- Renewable Energy and Sustainability
- Ionic liquids properties and applications
- Healthcare and Environmental Waste Management
- Climate Change Policy and Economics
- Nuclear Physics and Applications
- Renewable energy and sustainable power systems
Technical University of Munich
2019-2024
Public Citizen
2023
Max Planck Computing and Data Facility
2020
Gdańsk University of Technology
2015-2019
Institute of Automation
2019
Osnabrück University
2007-2017
Museum am Schölerberg
1997-2017
TU Bergakademie Freiberg
2015
University of Bonn
1981
Hölker, F., T. Moss, B. Griefahn, W. Kloas, C. Voigt, D. Henckel, A. Hänel, P. M. Kappeler, S. Völker, Schwope, Franke, Uhrlandt, J. Fischer, R. Klenke, Wolter, and K. Tockner. 2010. The dark side of light: a transdisciplinary research agenda for light pollution policy. Ecology Society 15(4): 13. https://doi.org/10.5751/ES-03685-150413
Lighting policies intended to reduce energy use must focus on consumed per year, rather than luminous efficiency.
In the pursuit of a successful energy transition, synthetic basic chemicals and fuels, alongside renewable energies, play pivotal roles. This study focuses on utilization biomass as carbon source to replace conventional fossil feedstocks, conducting detailed process simulations techno-economic analyses for various biomass-to-x pathways. Six key products—Methanol, Dimethyl Ether, Methane (SNG), Fischer-Tropsch syncrude, Hydrogen, Ammonia—derived from entrained flow gasification representative...
A large number of process routes is available for the production sustainable energy carriers from biogenic residues. Benchmarking these usually suffers a lack comparable performance data. The present work addresses this through comprehensive model-based comparison various biomass-to-X routes. Herein, seven (methanol, synthetic natural gas, dimethyl ether, Fischer-Tropsch syncrude, ammonia, and hydrogen with without carbon capture) are modelled in detailed Aspen Plus® simulations. evaluation...
Near all-sky imaging photometry was performed from a boat on the Gulf of Aqaba to measure night sky brightness in coastal environment. The not anchored, and therefore drifted rocked. camera mounted tripod without any inertia/motion stabilization. A commercial digital single lens reflex (DSLR) fisheye were used with ISO setting 6400, exposure time varied between 0.5 s 5 s. We find that despite movement vessel measurements produce quantitatively comparable results apart saturation effects....
Although energy system optimisation based on linear is often used for influential outlooks and studies political decision-makers, the underlying background still needs to be described in scientific literature a concise general form. This study presents main equations advanced ideas explains further possibilities mixed integer programming offers optimisation. Furthermore, are shown using an example present more practical point of view. Therefore, this aimed at researchers trying understand...
The relationship between satellite based measurements of city radiance at night and the numbers types physical lights installed on ground is not well understood. Here we present “Nachtlichter app”, which was developed to enable citizen scientists classify count light sources along street segments over large spatial scales. project app were co-designed: played key roles in development, testing, recruitment, as analysis data. In addition describing itself data format, provide a general...
Although energy system optimization based on linear is often used for influential outlooks and studies political decision-makers, the underlying background still needs to be described in scientific literature a concise general form. This study presents main equations advanced ideas explains further possibilities mixed integer programming offers optimization. Furthermore, are shown using an example present more practical point of view. Therefore, this aimed at researchers trying understand...
The central European climate in Germany is not ideal for serious astronomical observations. Increasing light pollution hampers thousands of amateur astronomers and millions people from seeing starry skies the Milky Way. To study sources pollution, we estimate increase Osnabrück, a town about 160,000 inhabitants located northwestern Germany. We try to extrapolate these statistical data discuss possible reasons increasing though energy consumption stagnates. Some enthusiasts German association...
Municipal solid waste (MSW) contains mineral materials which are seldom considered as a potential resource. Currently, the management sector pays attention to recyclable parts, biodegradable material, waste-to-energy fraction, and residues after reuse recycle. In contrast, this study focus on matter in MSW. The aim was analyze discuss sources of MSW, impact minerals have technologies, finally, possibility recycle matter. contribution inorganic MSW stream is significant (about 20 wt.%). years...