Results 81 to 90 of about 922 (262)
Advanced Science, EarlyView.A compact eight‐channel electrically tunable varifocal metalens with three single‐layer polarization‐multiplexed bi‐focal metalens and three LC cells. The total thickness of the device is ∼6 mm, while the focal lengths can be switched among eight values (3.6, 4.2, 4.5, 4.9, 6.2, 6.9, 8.4, and 9.6 mm). ABSTRACT As an essential module of optical systems,
Zhiyao Ma +11 more
wiley +1 more source
Advanced Science, EarlyView.The human brain's imagination, which enables autonomous driving hazard avoidance by completing missing visual information, relies on Gaussian‐stochastic neuron. We report the altermagnetic RuO2 spintronic neurons integrating field‐free switching and intrinsic Gaussian stochasticity, building an all‐spin ANN for high‐quality image repairing and high ...
Junwei Zeng +9 more
wiley +1 more source
The site of Anthropocene and colonial entanglement: reviewing The Nutmeg's Curse. [PDF]
J Environ Stud Sci, 2022 Biswas D.
europepmc +1 more source
An Embodied Paper‐Based Microfluidic Al‐Air Battery for Enduring Untethered Insect‐Scale Robots
Advanced Science, EarlyView.This work presents a centimeter‐scale microfluidic aluminum–air battery (MFAAB) with dual‐surface anode and F−‐mediated byproduct decomposition. The design enables a high capacity of 2697.05 mAh/g Al and delivers tens of milliwatts to power LEDs, motors, and a toy car.
Yun Yang +5 more
wiley +1 more source
Intrasulcular Restorations of Anterior Teeth According to the BAIR Technique: Evaluation of Periodontal Parameters. [PDF]
Dent J (Basel), 2022 Giachetti L, Cinelli F, Nieri M.
europepmc +1 more source
Ultrafast Dynamics of Spin Current and Electron Temperature in Spintronic Terahertz Emitters
Advanced Science, EarlyView.This work quantifies optical‐pump‐induced THz transmission variations to reveal electron and lattice temperature dynamics and presents time‐resolved THz spectral maps for sub‐picosecond analysis. A 63 ± 8 fs time lag between THz emission and laser excitation is identified, serving as an intrinsic parameter limiting the upper frequency of spintronic THz
Yifan Wang +10 more
wiley +1 more source
Advanced Science, EarlyView.A continuous conductivity gradient is formed in a porous MXene/melamine foam via directional evaporation, thereby improving impedance matching and enhancing electromagnetic attenuation. The resulting monolithic composite delivers absorption‐dominant EMI shielding with ultralow reflection, offering a simple route toward lightweight EMI shielding ...
Dawei Zhang +6 more
wiley +1 more source
Electromagnetic Radiation Stimulated Learning in Perovskite Nickelates
Advanced Science, EarlyView.ABSTRACT Biological plasticity refers to the ability of synapses to strengthen or weaken over time. These adaptive properties play a fundamental role in learning and memory, spanning many orders of magnitude in timescales. Short‐term plasticity (STP) arises from rapid correlative activity, while long‐term plasticity (LTP) is governed by slower ...
Ranjan Kumar Patel +8 more
wiley +1 more source
Demonstrating Servant Leadership During the COVID-19 Pandemic. [PDF]
J Christ Nurs, 2022 Simon E, Mathew AN, Thomas VV.
europepmc +1 more source
RUDN Journal of Language Studies, Semiotics and Semantics, 2015 The article examines the evolution of the understanding of poetry as a specific variety of the language arts. Based on materials from Spanish, Russian, and French poetic discourses, the article reviews the analysis of the essence of poetry, and it recapitulates poetry’s systematic interpretation in the works of scholars from different countries and ...
openaire +2 more sources