TU Wien

Agricultural drought monitoring with Sentinel-1 cross‑ratio in heterogeneous tropical agriculture: a Mozambique case study

Agricultural drought monitoring is essential for food security in tropical regions where rain-fed agriculture predominates. Operational early warning systems rely primarily on optical vegetation indices, but cloud cover limits their usability during critical growing periods. SAR...

Coupling of hydrological drought and flood extremes under climate change in the Kamp catchment, Austria

Study region Kamp catchment, Austria Study focus This study developed a comprehensive framework to assess consecutive hydrological drought-to-flood (D-F) events. The framework integrates a performance-based selection of ÖKS15 climate projections for RCP2.6, RCP4.5, and RCP8.5, hy...

Performance of Dual-polarization Sentinel-1 Flood Monitoring in Austria

Abstract Floods have caused severe damage in Austria in recent years, and climate change is expected to increase flood risks in the future. While Austria has an advanced hydrological measurement network for flood monitoring and prediction, Synthetic Aperture Radar (SAR) data from...

Improving Backscatter-Based Surface Water Classification in Arid Environments Through Interferometric Coherence

Synthetic Aperture Radar (SAR) backscatter serves as a key tool for tracking surface water dynamics; however, single-source data dependencies introduce systematic bias tied to the specific physical limitations of the signal. A primary challenge in SAR analysis is the backscatter...

Full event interpretation with machine-learning-based particle-flow reconstruction in the CMS detector

Abstract The particle-flow (PF) algorithm constructs a global description of each particle collision by producing a comprehensive list of final-state particles, and is central to event reconstruction in the CMS experiment at the CERN LHC. The existing PF implementation relies on...

Endogenously (Non-)Ricardian Beliefs

Replication files for "Endogenously (Non-)Ricardian Beliefs", forthcoming in the International Economic Review

Variable high-contrast all-optical self-switching of femtosecond solitonic pulses in multi-dual-core optical fiber with distributed optical asymmetry

Abstract Effective alloptical selfswitching of Cband femtosecond pulses, driven by pulse energy in a nonlinear fiber coupler, was experimentally investigated. A key contribution of this work is the detailed analysis of optical asymmetry between the two fiber cores influencing the...

How Modeling Assumptions Shape Predictions of Convective Mixing of Carbon Dioxide

Abstract We investigate how models of fluid properties and boundary conditions influence predictions of convective mixing in confined porous media, with relevance to subsurface carbon dioxide storage. Using high‐resolution simulations at high Rayleigh‐Darcy numbers (O()), we anal...

Model-based online estimation of the product gas water content and the product gas mass flow in a dual fluidized bed steam gasifier using the coarse product gas cleaning section

Replacement of fossil fuels and base chemicals by sustainable alternatives is one of today’s greatest challenges for economy and society. Dual fluidized bed steam gasification with downstream synthesis processes is a promising technology to generate versatile energy carriers and...

A Paley–Wiener–Schwartz Theorem for Smooth Valuations on Convex Functions

Abstract Continuous dually epi-translation invariant valuations on convex functions are characterized in terms of the Fourier–Laplace transform of the associated Goodey–Weil distributions. This description is used to obtain integral representations of the smooth vectors of the na...

Z-selective hydrosilylation of terminal alkynes catalyzed by a bench-stable manganese alkyl complex

A stereo- and regioselective Mn(I)-catalyzed hydrosilylation of terminal alkynes is described. The hydrosilylation reaction selectively yields the thermodynamically less stable ( Z )-alkenyl silane. A wide variety of aromatic and aliphatic alkynes were efficiently and selectively...

Facile and FastMicrowave-Assisted Synthesis of MetalatedPCN-222 for Light-Driven Hydrogen Evolution Reaction

Abstract Porphyrinic metal–organic frameworks (PMOFs) have the capacity to incorporate metalloporphyrins (MPs) into their structure. While this ability opens the door to many potential applications, the synthesis of metal-incorporated PMOFs typically involves multistep protocols,...

Numerical analysis of vibrations of a moving blade in a narrow lubricated gap under parametric and follower load excitations

Abstract A planar fluid–structure-interaction problem inspired by metal bandsawing is considered. The model consists of a blade that is moving through a narrow fully lubricated gap and subjected to axial parametric excitations and distributed follower loads. The blade is modelled...

The effect of the induced potential flow on plane turbulent wall jets

Abstract Considered is the plane turbulent jet issuing from an orifice in a lateral wall and propagating along a base wall. Both walls are assumed to be plane and very large. The inclination angle of the lateral wall with respect to the base wall is a parameter, with the particul...

Evaluating data analytics architectures performance: a comparative study on the continuum

Over the last few years, we have experienced a growing avalanche of information generated by devices connected to the Internet derived from the widespread acceptance of technology in society. These devices have enabled the development of IoT applications that facilitate and impro...

Narrowband and wavelength-tuneable bright EUV–soft-X-ray harmonics for resonant imaging and spectroscopy

Abstract Ultrashort, bright, wavelength-tuneable X-ray pulses are essential for resonant imaging and spectroscopy, yet are typically available only at large-scale free-electron-laser facilities. In this study, we present an efficient tabletop technique for generating wavelength-t...

Radiomics for risk stratification in brain metastases: potential in melanoma brain metastases

The identification of quantitative non-invasive imaging biomarkers, including radiomics, may complement molecular characterization and thereby improve clinical management of neuro-oncological patients. We aimed to identify imaging predictors with improved performance over clinica...

Biomechanical properties of an all-soft tissue quadriceps tendon autograft compared with a quadrupled semitendinosus autograft: a cadaveric study

Abstract Background Anterior cruciate ligament (ACL) injuries are among the most frequent ligament injuries, with autograft reconstruction considered to be the gold standard treatment. The all-soft-tissue quadriceps tendon (ASTQT) autograft has gained popularity because of its fa...

Inscription of Quasi-Sinusoidal Surface Relief Optical Gratings in ZEONOR™ Cyclic Olefin Polymer by a 10.5 MeV N4+ Ion Microbeam at Low Implanted Fluences

Direct writing of microstructures in ZEONOR™ cyclic olefin polymer, using a high-energy medium-mass ion microbeam, was proposed and demonstrated. Microbeams of 10.5 MeV N4+ ions were used. The implanted fluences were between 2.5·1012 and 2.0·1013 ion/cm2. The microstructures were...

Mechanical and durability-related properties of one-part alkali-activated slag mortars

The mechanical and durability-related properties of a one-part alkali-activated slag (AAS) were evaluated for use as a sustainable alternative to conventional clinker-based materials. The AAS formulation was activated with stoichiometric calcium hydroxide and sodium carbonate. Co...