Results 211 to 220 of about 11,192,233 (306)

Direction-discriminable torsion sensor based on a helical taper long period fiber grating

open access: gold
Xuelan He   +6 more
openalex   +1 more source

Temperature Monitoring of Iron Molybdate Catalysts during ODH Reactions Using Coupled Operando Raman/XRD Analysis

open access: yesChemCatChem, Volume 18, Issue 19, 14 October 2026.
Exothermic reactions can cause a temperature increase in the catalyst bed under operating conditions. We introduce a novel approach to measure the catalyst temperature based on operando Raman/X‐ray powder diffraction (XRD) analysis and illustrate its application to the depth‐dependent temperature monitoring of iron molybdate catalysts during oxidative ...
Hannah M. Wilhelm   +4 more
wiley   +1 more source

Moderate Biochar–Compost Mixture Is More Effective in Improving Biomass, Nutrient Fluxes, and Photosynthetic Outputs for Sustainable Land Restoration and Soil Fertility

open access: yesLand Degradation &Development, Volume 37, Issue 16, Page 12004-12017, October 2026.
ABSTRACT Soil nutrient depletion severely constrains crop productivity in degraded and saline environments. Strategies such as biochar–compost integration could be useful for sustainable agriculture and land restoration on a global scale. This study evaluated the effects of biochar (1% Bc), compost (1% Co), and their blends (0.5% Bc + 0.5% Co and 1% Bc 
Zainul Abideen   +7 more
wiley   +1 more source

High‐Efficiency Graphene‐Silicon Slot‐Waveguide Microring Modulator at 1.5 and 2 µm Wavelength Bands

open access: yesLaser &Photonics Reviews, Volume 20, Issue 19, 7 October 2026.
E/O modulators typically face a trade‐off between bandwidth and modulation efficiency. An integrated E/O modulator is presented that simultaneously achieves wideband, large bandwidth, and high modulation efficiency operation by embedding a partially overlapped double‐layer graphene on a compact silicon slot‐waveguide microring resonator.
Chao Luan   +4 more
wiley   +1 more source

Controllable orbital angular momentum generation based on polarization-maintaining broadband long-period fiber grating

open access: hybrid
Jingyu Cui   +5 more
openalex   +1 more source

Femtosecond‐Laser‐Inscribed Cladding Fiber Bragg Gratings: Architectures, Design Trade‐Offs and Future Sensing Opportunities

open access: yesLaser &Photonics Reviews, Volume 20, Issue 19, 7 October 2026.
Femtosecond‐laser inscription enables precise positioning of fiber Bragg gratings within the cladding, introducing new spatial and modal design freedoms. Auxiliary‐waveguide, near‐core evanescent‐field, and direct cladding‐mode‐excitation architectures provide complementary pathways toward multiparameter, vector, distributed, and environmentally ...
Koustav Dey   +3 more
wiley   +1 more source

Non-invasive respiratory monitoring using long-period fiber grating sensors. [PDF]

open access: yesBiomed Opt Express, 2014
Petrović MD   +8 more
europepmc   +1 more source

Temperature Sensor Based on Modal Distribution in Long-Period Fiber Gratings: A Deep Learning Approach [PDF]

open access: gold
Juan Soto-Perdomo   +5 more
openalex   +1 more source

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