Results 51 to 60 of about 972 (166)
Structural Concrete, Volume 27, Issue 1, Page 514-527, February 2026.Abstract The decisive reinforcement of thick concrete members is often determined by the minimum reinforcement for crack control due to restraint stresses. In contrast to the heuristic design model in Eurocode 2, a mechanically sound methodology is only provided if the deformation compatibility is considered.
Christina Krenn, Dirk Schlicke
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Advanced Science, Volume 13, Issue 6, 30 January 2026.This work introduces a beamforming‐based method to generate acoustic images from fiber‐optic distributed acoustic sensing (DAS) data. By performing 2D scanning around the sensing fiber, the approach enables near‐field imaging and localization of acoustic sources, even in regions distant from the fiber. A data‐driven DAS channel selection improves image
Marcelo A. Soto +1 more
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Numerical and Experimental Methods for Estimating the Propagation Loss in Microphotonic Waveguides
Advanced Photonics Research, Volume 6, Issue 12, December 2025.Finite‐element finite‐difference time domain, eigenmode‐expansion, and volume‐current simulations are benchmarked against cut‐back, ring‐resonator, and OFDR measurements to quantify waveguide propagation loss in integrated photonic circuits. Scattering, absorption, leakage, and back‐reflection contributions are dissected; error sources are ranked; and ...
Francesco Dell’Olio +4 more
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Tightly‐Confined and Long Z‐Cut Lithium Niobate Waveguide with Ultralow‐Loss
Laser &Photonics Reviews, Volume 19, Issue 21, November 6, 2025.A z‐cut lithium niobate waveguide is demonstrated with ultra‐low loss of 5.8 dB/m in a decimeter‐long LN spiral waveguide. This study is focused on Z‐cut LN waveguides with TE mode to avoid the material birefringence. Utilizing the third order nonlinearity, it is demonstrated that the first all‐normal‐dispersion coherent supercontinuum frequency comb ...
Yan Gao +5 more
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Laser &Photonics Reviews, Volume 19, Issue 22, November 19, 2025.This work pioneers a 5.7 MHz all−fiber mode−locked laser−based broadband swept−source OCT system, achieving record−breaking performance: 11.4 µm axial resolution and 119 mm detection range. The system demonstrates exceptional coherence and stability, overcoming traditional trade−off between imaging speed and detection range.
Laiyang Dang +7 more
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Advanced Materials Technologies, Volume 10, Issue 15, August 7, 2025.A lithium battery separator displaying a structural color allows the visualization of mechanical phenomena in charging and discharging with color changes. The separator consists of silica nanoparticles and an acrylic polymer, enabling the simultaneous observation of the color changes, bubbles, and crystals.
Satoshi Nishita, Hiroaki Onoe
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Applied Sciences, 2018 The Cast-in-place concrete large-diameter pipe (PCC) pile has been used as the foundation reinforcement and embankment in China due to its low cost and high bearing capacity.
Lei Gao +5 more
doaj +1 more source
Deformation monitoring at shield tunnel joints: Laboratory test and discrete element simulation
Deep Underground Science and Engineering, Volume 4, Issue 1, Page 149-157, March 2025.The optical frequency domain reflectometry technique is applied in laboratory tests to monitor the shear process and center settlement process of shield tunnel segments. Two kinds of quantitative calculation methods are put forward, and the discrete element numerical analysis method is utilized to verify these two methods.
Maoyi Mao +4 more
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Strain, Volume 61, Issue 1, February 2025.Abstract Vibration‐based approaches to structural health monitoring (SHM) gained increasing significance for assessing the behaviour of existing structures because of their non‐intrusive nature and high sensitivity to damage. However, data availability often limits the application of SHM approaches.
Giulia Delo +3 more
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International Journal of Energy Research, Volume 2025, Issue 1, 2025.With the advantages of high inherent safety, simple design, and small volume, the heat pipe reactor (HPR) is considered one of the nuclear power systems suitable for the distributed electricity generation market. The HPR transfers heat generated from the reactor core through heat pipes to an intermediate heat exchanger (IHX) connected to power ...
Yongnam Lee +3 more
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