A5107025649- Building Energy and Comfort Optimization
- Phase Change Materials Research
- Adsorption and Cooling Systems
- Advanced X-ray and CT Imaging
- Cultural Heritage Materials Analysis
- Medical Imaging Techniques and Applications
- Solar Thermal and Photovoltaic Systems
- Smart Grid Energy Management
- Asphalt Pavement Performance Evaluation
- Wood Treatment and Properties
- Tree-ring climate responses
- Musculoskeletal pain and rehabilitation
- Integrated Energy Systems Optimization
- Infrastructure Maintenance and Monitoring
- Plant Water Relations and Carbon Dynamics
- Energy Load and Power Forecasting
- Motor Control and Adaptation
- Image Processing and 3D Reconstruction
- Geophysical Methods and Applications
- Radiation Dose and Imaging
- Conservation Techniques and Studies
- Hydrocarbon exploration and reservoir analysis
- Probiotics and Fermented Foods
- Ultrasonics and Acoustic Wave Propagation
- Nuclear Physics and Applications
Lucerne University of Applied Sciences and Arts
2015-2024
Swiss Federal Laboratories for Materials Science and Technology
2011-2016
Flisom (Switzerland)
2016
University of Zurich
2008
Identifying strongly connected substructures in large networks provides insight into their coarse-grained organization. Several approaches based on the optimization of a quality function, e.g., modularity, have been proposed. We present here multistep extension greedy algorithm (MSG) that allows merging more than one pair communities at each iteration step. The essential idea is to prevent premature condensation few communities. Upon convergence MSG simple refinement procedure called...
Abstract Local porosity theory in combination with percolation was applied to shale microstructures that were reconstructed on the basis of focused ion beam nanotomography and scanning transmission electron microscopy. This allowed characterizing pore Opalinus clay length scales order tens microns. In a sample from sandy facies (with low content), fraction “larger” pores ϕ (radii~ > 15 nm) = 0.076 is substantially higher than shaley where 0.015. The resolved possesses certain degree...
Air pollution is still a major public health issue, which makes monitoring air quality necessity. Mobile, low-cost measurement devices can potentially deliver more coherent data for region or municipality than stationary stations are capable of due to their improved spatial coverage. In this study, measurements obtained during field tests our sensor node (sensor-box) presented and compared from the regional network. The sensor-box acquire geo-tagged several important pollutants, as well...
Heat pumps play an important role in decarbonizing the heating supply of buildings and they allow to increase self-consumption PV electricity, especially when supported by electricity or heat storage. In this study, we develop open-source model optimize PV-coupled pumps, with without storage, compare their performance for three types single-family houses different thermal envelope quality paired 549 profiles. We analyze trade-offs between prosumer benefits grid impacts, namely bill...
The continuous increase in atmospheric carbon dioxide (CO2) concentration has triggered global warming and climate change. Strong policies novel, cost-effective CO2 control methods have been developed to mitigate these issues over the last years. Metal-organic frameworks (MOFs) emerged as one of most rapidly advancing areas research chemistry, driven by advancements synthesis, structure determination, interdisciplinary research, broadening applications. MOFs porous materials demonstrate...
We have recently introduced a multistep extension of the greedy algorithm for modularity optimization. The is based on idea that merging l pairs communities (l>1) at each iteration prevents premature condensation into few large communities. Here, an empirical formula presented choice step width generates partitions with (close to) optimal 17 real-world and 1100 computer-generated networks. Furthermore, in-depth analysis two networks (the metabolic network bacterium E. coli graph coappearing...
A numerical analysis is carried out to investigate the influence of different solar collector control strategies on performance a heating system coupled with seasonal thermal energy storage. The used for space and domestic hot water production in low-energy residential building. controller measured terms minimum storage volume required achieve an annual fraction 100%. Three controllers were numerically investigated: (1) high-flow (HFC) constant nominal flow rate 40 l/h⋅m2, (2) low-flow (LFC)...
Solid–liquid phase transitions in change materials (PCM) usually exhibit a complex dynamics, which critically determines the performance of latent heat thermal energy storage systems (LHTES). Experimental approaches enabling to track dynamics entire PCM solid–liquid transition are thus crucial provide relevant data for material development and validate PCM-models used design efficient LHTES. In this work, we show how in-situ dynamic X-ray computed tomography (XCT) can be PCMs. The method...
Porous asphalt concrete is composed of aggregates, a bituminous binder and air voids which can form complex network. Because rain water easily drain through this network voids, porous often used for improving the security highways. However, deteriorating fast due to its large contact area with environmental agents. A quantitative determination influence on aging requires an understanding drainage evaporation in material. In paper, rate sample was investigated by means X-ray micro computed...
The development of thermoplastic fibers containing a liquid core is described. Internal morphology analysis confirms that the liquid-containing composed continuous cylindrical microchannel constant diameter. Microfluidic experiments on both and reference hollow were conducted by pumping distilled water through several filaments simultaneously. observed fluid motions are satisfactorily described Hagen-Poiseuille law, indicating have internal diameters 31.6 14.8 µm, respectively. Flushing with...
Impressive wooden objects from past cultures can last for centuries or millennia in waterlogged soil. The aim of conservation is to bring the more less degraded archaeological (WAW) finds a stable state without altering wood structure through shrinkage, collapse, and deformation. In this study, most used methods practice, such as alcohol-ether resin method, with melamine formaldehyde Kauramin 800, mixture lactitol trehalose, saccharose, silicone oil, three different polyethylene glycol...