A5052185645- 3D Modeling in Geospatial Applications
- Ecology, Conservation, and Geographical Studies
- Land Use and Ecosystem Services
- Geographic Information Systems Studies
- Polymer crystallization and properties
- Polymer Nanocomposites and Properties
- Urbanization and City Planning
- Remote Sensing and LiDAR Applications
- Environmental Science and Technology
- Plant and animal studies
- Automated Road and Building Extraction
- Urban Green Space and Health
- Scientific Computing and Data Management
- Research Data Management Practices
- Forest Management and Policy
- Hydrology and Watershed Management Studies
- Public Administration and Political Analysis
- Geochemistry and Geologic Mapping
- Historical Geography and Cartography
- Impact of Light on Environment and Health
- Flood Risk Assessment and Management
- Economic Zones and Regional Development
- Medical Image Segmentation Techniques
- Fiber-reinforced polymer composites
- Species Distribution and Climate Change
Leibniz Institute of Ecological Urban and Regional Development
2015-2024
FH Aachen
2018
Leibniz Association
2008-2013
RTI International
1964-1971
Research Triangle Park Foundation
1968-1971
IST Research
1965-1966
Abstract In Germany, the decline of insect biomass was observed in nature conservation areas agricultural landscapes. One main causal factors discussed is use synthetic pesticides conventional agriculture. a Germany-wide field study, we collected flying insects using Malaise traps adjacent to land. We used multi-component chemical trace element analysis detect 92 common ethanol from sampled May and August 2020. total, residues 47 current were detected, samples on average contaminated with...
The worldwide rapid declines in insect and plant abundance diversity that have occurred the past decades gained public attention demand for political actions to counteract these are growing. Rapid large-scale biomonitoring can aid observing changes provide information decisions land management species protection. Malaise traps long been used sampling when insects captured traps, they carry traces of plants visited on body surface or as digested food material gut contents. Metabarcoding...
Abstract The crystallinity, elastic modulus, and tensile strength of samples various draw ratios together with the true stress—strain curves high‐density polyethylene were determined to establish correlations morphological changes occurring during deformation. Changes crystallinity at below 5, i.e., constancy drawing quenched film a decrease annealed film, are explained by formation microfibrils independent thermal history film. slide past each other higher ratios, generating an increasing...
The paper summarises the multiple benefits of urban green spaces for city dwellers and provides an overview proximity approaches common key parameters green-space quantification in cities. We propose indicators assessment ecosystem service 'recreation city' on a national scale. calculation procedure, which takes into account best available data sets Germany, is explained. determination threshold values regarding standards comprising type, size distance crucial to such studies. results,...
Measurements of melting curves, density, and long period undrawn drawn PE as a function the draw ratio annealing temperature between 118° 129.8°C for different times were performed. Melting experiments show linear increase point reduction heat content noncrystalline component with increasing ratio. As consequence plastic deformation during drawing, tied macromolecules partly incorporated in more than one crystal are under high strain. This reduces not only entropy but also intra- (trans...
Data, maps and services of the national mapping cadastral agencies contain geometric information on buildings, particularly building footprints. However, type is often not included. In this paper, we propose a data-driven approach for automatic classification footprints that make use pattern recognition machine learning techniques. Using Random Forest Classifier suitability five different data sources (e.g. topographic raster maps, databases or digital landscape models) investigated with...
Abstract Linear polyethylene drawn at 0, 110, and 120°C to a draw ratio between 1.1 6 was investigated by small‐ wide‐angle X‐ray scattering. Besides small increase of meridional long period low ratios one observes decrease diagonal (at an angle φ the meridian) equatorial high temperatures. This is consequence thinning lamellae chain tilt in compressional field uniaxial deformation. The early scattering intensity indicates rapidly increasing loss packing order as consequences disappearance...
Abstract The transformation of microspherulitic quenched and annealed polyethylene film into highly oriented drawn material with the characteristic fiber structure was investigated by small‐angle wide‐angle x‐ray measurements a study thermograms after fuming nitric acid treatment. With details deformation depending slightly on crystallinity, one observes generally preferential tilt platelets against draw direction at ratios below 2. At least in material, an increasing molecule within lamella...
Abstract Building stock is an extremely cost-intensive and long-lived component of the settlement structure. Considering its importance, information available on building development often inadequate. Data such as age structure buildings, number dwelling units floors are not comprehensively nor sufficiently processed. In order to fill this gap, paper presents a method for calculation parameters by means spatial disaggregation through combination data obtained from topographic maps 1∶25 000,...
Estimating urban green volume is getting more and important within the frame of an ecologically orientated city planning environmentally sustainable development. The first last pulse airborne Light Detection Ranging (LiDAR) data provide basis for estimation volume, but these optimal are not always available, particularly areas. That why this paper deals with question whether LiDAR (last only) that have been taken during vegetation period allow a sufficient volume. This sets up on previous...
Abstract Drawn PE of different draw ratios (ranging from 1 to 25) and thermal treatment (annealing temperature 80, 100, 110, 120, 127°C.) was treated with fuming nitric acid at 80°C. Weight loss, molecular weight, elastic modulus, thermograms were measured for annealed unannealed samples as a function the time ratio. As consequence preferential oxidation noncrystalline portions, there occurs initially high rate weight loss steep drop in followed by lower nearly constant weight. The modulus...
Abstract Insect declines and biodiversity loss have attracted much attention in recent years, but lack of comprehensive data, conflicting interests among stakeholders insufficient policy guidance hinder progress preserving biodiversity. The project DINA (Diversity Insects Nature protected Areas) investigates insect communities 21 nature reserves Germany. All selected conservation sites border arable land, with agricultural practices assumed to influence populations. We taught citizen...
Urban Growth Boundary (UGB) is a growth management policy that designates specific areas where should be concentrated in order to avoid urban sprawl. The objective of such boundary protect agricultural land, open spaces and the natural environment, as well use existing infrastructure public services more efficiently. Due inherent heterogeneity complexity settlements, UGBs Germany are currently created manually by experts. Therefore, every dataset linked area, investigation period dedicated...
Abstract In recent years, the decline of insect biodiversity and imminent loss provided ecosystem functions services has received public attention raised demand for political action. The complex, multi-causal contributors to require a broad interdisciplinary cross-sectoral approach that addresses ecological social aspects find sustainable solutions. project Diversity Insects in Nature protected Areas (DINA) assesses communities 21 nature reserves Germany, considers interactions with plant...