Results 141 to 150 of about 919,980 (236)
Angle-based wavefront sensing enabled by the near fields of flat optics. [PDF]
Nat Commun, 2021 Yi S +5 more
europepmc +1 more source
Liquid Phase Backscattered Scanning Electron Microscopy of Bacillus subtilis Spores
Small Methods, EarlyView.Graphene encapsulation enables liquid‐phase BSE‐SEM to visualize subsurface architecture of whole, hydrated Bacillus subtilis spores without staining. This approach is applied to visualize dormant spores and subsequent structural changes during spore germination, while imaging across a range of beam energies and Monte Carlo simulations provide a ...
Jack Bromley +8 more
wiley +1 more source
Safety Science and Technology, EarlyView.Molten aluminum–water explosion triggered by leakage remains the core unresolved safety hazard hindering safe production in aluminum direct chill casting. This review summarizes its explosion mechanism, key influencing factors, prevention technologies, existing gaps, and prospects of intelligent multi‐technology integrated explosion‐proof systems ...
Min Wang +5 more
wiley +1 more source
Closed-loop wavefront sensing and correction in the mouse brain with computed optical coherence microscopy. [PDF]
Biomed Opt Express, 2021 Liu S +6 more
europepmc +1 more source
Strategies for enhancing sensitivity in lateral flow assays
VIEW, EarlyView.Lateral flow assays (LFAs) are essential for cost‐effective, rapid point‐of‐care diagnostics. However, conventional colourimetric LFAs often lack the sensitivity required for low‐abundance biomarkers. This review evaluates six enhancement strategies: flow modulation, sample preconcentration, advanced reporters, chemical signal amplification, structural
Aylar Eslami Saed +3 more
wiley +1 more source
Complex wavefront sensing based on coherent diffraction imaging using vortex modulation. [PDF]
Sci Rep, 2021 Li R, Cao L.
europepmc +1 more source
High Voltage, EarlyView.ABSTRACT To effectively suppress transient overvoltages in HVDC systems, the design and experimental validation of a multi‐module series controllable arrester are presented. The voltage‐limiting performance, series voltage equalisation capability, and robustness under fault conditions in high‐voltage scenarios require further research.
Tai Yang +4 more
wiley +1 more source
High Voltage, EarlyView.ABSTRACT The direct effects of lightning strikes on forest combustibles form the foundation for predicting lightning‐induced forest fires. Accurate assessment of lightning impact is hindered by limited knowledge of the conduction characteristics of standing larch trees.
Jinru Sun +5 more
wiley +1 more source
Multi-layer Shack-Hartmann wavefront sensing in the point source regime. [PDF]
Biomed Opt Express, 2021 Akondi V, Dubra A.
europepmc +1 more source
High Voltage, EarlyView.ABSTRACT The traction power supply system of high‐speed railways is exposed to complex lightning environments over the long term. Overvoltage generated by direct lightning or induced lightning can propagate along the overhead contact line, traction substations, onboard high‐voltage system and mobile grounding system, thereby threatening equipment ...
Guangning Wu +9 more
wiley +1 more source