A5068584046- Lignin and Wood Chemistry
- Animal Disease Management and Epidemiology
- Viral gastroenteritis research and epidemiology
- Biofuel production and bioconversion
- Aquatic Ecosystems and Phytoplankton Dynamics
- Viral Infections and Immunology Research
- Fish Ecology and Management Studies
- Fermentation and Sensory Analysis
- T-cell and Retrovirus Studies
- Virus-based gene therapy research
- Autoimmune Bullous Skin Diseases
- Aquatic Ecosystems and Biodiversity
- Congenital Anomalies and Fetal Surgery
- Carbon Dioxide Capture Technologies
- Herpesvirus Infections and Treatments
- Animal Virus Infections Studies
- Respiratory viral infections research
- biodegradable polymer synthesis and properties
- Poxvirus research and outbreaks
- Liver Diseases and Immunity
- Cutaneous lymphoproliferative disorders research
- Viral Infectious Diseases and Gene Expression in Insects
- Ecology and Vegetation Dynamics Studies
- Nail Diseases and Treatments
- Chemical Looping and Thermochemical Processes
Max Planck Institute for Dynamics of Complex Technical Systems
2014-2024
Bayer (Germany)
2024
Bauhaus-Universität Weimar
2024
Freie Universität Berlin
2022
Deutsche Forschungsgemeinschaft
2022
WSP (Canada)
2022
Oxford University Press (United Kingdom)
2022
University College London
2022
New York Times
2022
National Academy of Engineering
1993-2022
We exposed natural zooplankton communities to in situ levels of sunlight for 3 days at different depths two north temperate lakes: one oligotrophic and eutrophic. Natural fluxes UV-B radiation (280–320 nm) were manipulated with cutoff filters (Mylar®). There was substantial mortality some the lake, but not eutrophic lake. Reproduction Diaptomus suppressed by down 6 m These data suggest that lake may prevent species from continuously exploiting warm surface waters during summer...
Acetone organosolv fractionation of beech and birch wood at the lab-scale results in high sugar yields from (hemi)cellulose isolation a high-purity lignin. In this study, process is scaled up to validate technology pilot scale using industrial-size chips low liquid-to-solid ratios as next step toward commercialization. Translation pilot-scale showed similar performance compared processing with good conversion polymeric pentoses mostly monomeric sugars delignification. Continuous lignin...
Technical lignins are relatively heterogeneous and structurally not fully understood, which hinders their commercialization. This study involves the precipitation fractionation of organosolv (OS) lignin into different molecular weight (MW) classes by stepwise addition an anti-solvent in acetone/water mixtures with varying feed concentrations 5, 10, 15 wt% lignin/solvent mixture. Characterization obtained fractions SEC-MALS, TM-DSC, 31P NMR revealed MW a broad range from 2050 to 26500 g...
This work introduces the principles and supplies first key parameters for replacing conventional ammonia-soda (Solvay) process with a new environmentally friendly sustainable process. For this, absorption of diluted CO2 (0.0153–1.2 vol %) in carbonated NaOH solutions was experimentally studied temperature range relevant direct air capture (DAC) middle Europe (5–20 °C). A dynamic model formulated solved based on literature parameters. It found that by refitting parameters, average error...
The interfacial area between two phases plays a crucial role in the mass transfer rate of gas–liquid processes such as absorption. In this context, droplet size distribution within flow field droplet-based absorber significantly affects surface area, thereby influencing absorption efficiency. This study focuses on developing computational fluid dynamics (CFD) model to predict and water droplets free-falling transparent square tube. serves digital twin our experimental setup, enabling...
The solubility and softening behavior of lignin from acid-catalyzed ethanol/water pulping was determined in various solvent mixtures a process relevant temperature range. Operation conditions for an optimized separation have been derived the phase behavior. A continuous recovery has developed lab scale successfully up-scaled to dedicated pilot plant at Fraunhofer CBP (WO2016062676A1). Agglomeration softened particles "stickiness" were adjusted by (38–44 °C 80–120 mbar) ethanol content...
Polysaccharide based nanoparticles (NP) have demonstrated a unique potential for biomedical and biotechnological applications. Various functionalities can be covalently linked to these NP, however, physical entrapment of functional compounds is still highly desired approach, e.g., drug delivery. Using different dyes, it how hydrophobic incorporated into composite particles derived from cellulosic esters the particle properties are affected by composition. The dye loaded NP studied UV–vis...
Accurate and reliable structural characterization of technical lignins is still challenging inhibits industrial utilization as only poor understanding structure–property relationship available. Especially, molar mass analysis paramount interest; however, the usage conventional size exclusion chromatography (SEC) synthetic polymer standards a consequence inaccessible lignin predominantly found in academia. This leads to huge discrepancy molecular weight analyses between different laboratories...
Patchiness in abundance is common but estimates of its importance nature are rare. We show that increases patchiness a natural population predatory zooplankton can result in: (1) reductions the predation rates most predators; (2) substantial changes impact predator on prey; and (3) large differences between per capita individual predators. Our approach be readily applied to other ecological interactions communities
The microbial production of isobutanol holds promise to become a sustainable alternative fossil-based synthesis routes for this important chemical. Escherichia coli has been considered as one host, however, due redox imbalance, growth-coupled anaerobic from glucose in E. is only possible if complex media additives or small amounts oxygen are provided. These strategies have negative impact on product yield, productivity, reproducibility, and costs.In study, we propose strategy based acetate...
We demonstrate how research on innovative agroforestry systems, incorporating new species and management approaches, can benefit from preliminary financial appraisals that include both economic ecological variables in quantitative cost—benefit models. Model results provide vital information for planning further research, thus increase the likelihood of finding practical solutions to urgent resource problems within reasonable funding time constraints. As a case study, we evaluate potential...
Previous studies have shown that many if not most copepods are omnivores and all zooplankton experience substantial fluctuation in the abundance of food resources. We attempt to integrate these two observations by determining implications fluctuations both type available resources for survival reproduction omnivorous calanoid copepod Epischura lacustris. Egg production survivorship were measured laboratory experiments as (zooplankton phytoplankton) concentration experimentally manipulated....
1. Visually foraging fish typically exclude large zooplankton from clear-water lakes and reservoirs. Do have the same effect in turbid waters, or does turbidity provide a refuge visual predation? 2. To test hypothesis that species sites, I searched for populations of medium Daphnia turbid, fish-containing reservoirs south-central Oklahoma north-central Texas, U.S.A., surveyed literature accounts habitats worldwide. 3. Only small exuberantly spined lumholtzi were detected The are smaller than...
SUMMARY This study compares small‐scale (i.e. neighbourhood) associations among distributions of phytoplankton, zooplankton, and zooplankton grazing rates using a combination correlations analyses spatial patchiness. All phytoplankton populations had patchy distributions. On average, individuals experienced members their same taxon at density that was 42% greater than the mean sample density. The various taxa different average neighbourhoods, even within stratum lake. For example, Daphnia...