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Item type:Item, Access status: Metadata only , Printing technologies for monitoring crop health(Springer Nature, 2026-01-24) Panacek, David; Kupka, Vojtech; Nalepa, Martin-Alex; Dedek, Ivan; Alvarez-Diduk, Ruslan; Olenik, Selin; Flauzino, Jose; Zdrazil, Jan; Jakubec, Petr; Zdrazil, Lukas; Spichal, Lukas; Sonigara, Kevalkumar Kishorbhai; Zboril, Radek; Pumera, Martin; Merkoci, Arben; Wang, Joseph; De Diego, Nuria; Guder, Firat; Otyepka, MichalAgricultural production requires low-cost sensors capable of delivering reliable, high-resolution data across large areas. Rising food demand, limited arable land, and severe soil degradation have accelerated the adoption of precision agriculture, which relies on real-time monitoring of soil, plant, and environmental conditions. Central to this shift is the development of scalable sensor technologies enabled by advances in materials science. Printing techniques, including inkjet, screen, aerosol jet, 3D printing, and direct laser writing, offer versatile routes to fabricate flexible, large-area, and plant-integrated sensors. This Review surveys recent progress in printable low-dimensional materials for agricultural sensing, examines their physicochemical properties in relation to sensor performance, and discusses key challenges and future opportunities requiring interdisciplinary integration.Item type:Item, Access status: Metadata only , Fatigue life prediction of weld joints: Microstructural variation can be omitted while residual stress consideration is essential(Elsevier, 2026-01-22) Tichoň, Dušan; Vojtek, Tomas; Jambor, Michal; Dlhý, Pavol; Trsko, Libor; Vlcek, Libor; Náhlík, Luboš; Hutař, PavelThe work focused on residual fatigue life (RFL) prediction of non-standard dog bone specimens made of the low alloy steel P265GH containing a butt weld joint (Double-Bevel-Groove-Weld). Numerical predictions were based on crack growth rate data measured on the standard compact tension (C(T)) specimens fabricated from the three structural parts of the weld joint, the base metal, the weld metal and the heat-affected zone. X-ray diffraction measurement technique was used to determine residual stress distribution in the weld joints. The results were incorporated into the numerical model. Residual stress profiles in the C(T) and the dog bone specimens exhibited significant differences. Even the lower bound of the crack propagation data obtained from the standard laboratory specimens can be non-conservative. When no residual stress was considered in the numerical model, the computed RFLs of the dog bone specimens in the as-welded state were much different from the experimental results. Consideration of different material data for each weld zone, which is the standard method, resulted in highly non-conservative results. Consideration of the residual stress field in the numerical model was crucial to reach good agreement with the experiments (relative error of about 7-10%). Variation of microstructure did not affect crack growth rates significantly. The base metal data alone were sufficient for all simulations, making the demanding procedure of material data acquisition for each of the weld zones unnecessary. The results helped to bring clarity and understanding to the issue of fatigue of weld joints, contributing to both science and applications.Item type:Item, Access status: Metadata only , Sub-10-nm quantification of spin and orbital magnetic moment across the metamagnetic phase transition in FeRh using EMCD(American Physical Society, 2026-01-26) Hajduček, Jan; Leccese, Veronica; Rusz, Ján; Arregi Uribeetxebarria, Jon Ander; Sapozhnik, Alexey; Štindl, Jáchym; Barantani, Francesco; Cattaneo, Paolo; Andrieux, Antoine; Carbone, Fabrizio; Uhlíř, Vojtěch; LaGrange, ThomasElectron magnetic circular dichroism (EMCD) in transmission electron microscopy (TEM) enables elementspecific measurement of spin and orbital magnetic moments, analogous to x-ray magnetic circular dichroism (XMCD). While the EMCD technique offers unmatched spatial resolution, its quantitative accuracy remains under scrutiny, particularly in beam-splitter geometries with convergent probes. Here, we systematically evaluate the limits of quantitative EMCD analysis using the first-order magnetostructural transition in the functional phase-change material FeRh as a tunable magnetic reference. Unlike previous EMCD studies primarily focused on elemental ferromagnets such as Fe, we demonstrate its applicability to a correlated material exhibiting coupled structural and magnetic order. We demonstrate that the extracted orbital-to-spin moment ratio (mL/mS) remains within the same order of magnitude as XMCD benchmarks, despite a systematic reduction in absolute value, for TEM probes down to approximately 6 nm, thereby establishing the validity range for reliable quantification. For nanometer-sized probes with higher convergence angles, we observe an enhanced mL/mS, which we attribute to a combination of instrumental factors and sensitivity to nanoscale heterogeneity within the probed volume. Our results confirm that EMCD provides quantitative agreement with macroscale techniques under suitable conditions, while uniquely enabling spatially confined measurements of local magnetic moments in functional magnetic materials, and allowing the study of interfacial, defect-mediated, or phase-separated magnetism that is inaccessible to photon-based methods.Item type:Item, Access status: Metadata only , Verification of Member and Gusset Plate Imperfections in GMNIA Simulation(Wiley, 2026-01-22) Müller, Andreas; Taras, Andreas; Giulieri, Morena; Vild, MartinGusset plates are commonly used in the design and construction of trusses and bracing systems. A major design challenge is addressing the combined stability failure of the gusset plate and the steel member, which current design specifications tend to treat separately, overlooking their interaction. Although engineering models exist for designing columns with gusset plate connections, they are not widely adopted and may yield conservative or unsafe results. Numerical tools, including complex non-linear shell finite element methods, offer a more robust solution but are error-prone and require deep problem knowledge. Recently, component-based finite element methods (CBFEM) have gained popularity, enabling detailed simulations of entire systems, including members and gusset plates. A key aspect is selecting the appropriate imperfection shape, often derived from linear buckling analysis (LBA), which significantly influences the load-bearing capacity in a GMNIA (geometrically and materially nonlinear analysis with imperfections). The paper proposes criteria for choosing imperfection amplitudes in gusset plate connections, supported by CBFEM simulations and comparisons with experimental data from the literature.Item type:Item, Access status: Open Access , Current progress in the development of an ECR plasma source for atmosphere-breathing electric propulsion system(Springer Nature, 2026-01-27) Šťastný, Marek; Mrózek, Kryštof; Juřík, Karel; Drexler, Petr; Sedlář, Jan; Havlíček, Lukáš; Novotný, Michal; Obrusník, AdamAbstract This contribution reports on the experimental demonstration of plasma ignition in an electron-cyclotron-resonance atmosphere-breathing electric propulsion source at pressures representative of very low Earth orbit. Using a MHz-range birdcage resonator in combination with a tailored magnetic field, we achieved sustained plasma discharge at pressures consistent with conditions expected after intake compression at altitudes near 200 km. The scalability of the birdcage resonator with increasing forward power is explored, revealing the potential for future improvement regarding power scaling of the thruster. These findings identify both the feasibility of electrodeless ignition at VLEO pressures, and the engineering limits imposed by resonator heating. We further discuss quantitative links between measured ion currents, estimated thrust, and extraction efficiency. Our results establish critical design insights for scaling ABEP technology toward flight-ready operation.