Results 191 to 200 of about 28,891,464 (311)
Fire at the boundary: Airborne toxic metals from the 2025 Los Angeles urban firestorm. [PDF]
Baliaka HD +15 more
europepmc +1 more source
A lead‐free tin‐based hybrid perovskite is designed in which stereochemically active lone‐pair electrons on tin distort the crystal lattice and break its symmetry. Blended into a flexible polymer, the material converts pressure into electricity at milliwatt‐scale power density and continues working far below freezing, powering a commercial wristwatch ...
Majid Haji Bagheri +12 more
wiley +1 more source
Research on the Mechanism of High-Performance Aluminum Alloy Casting of Frozen Sand Mold Coupled with Negative Pressure. [PDF]
Luo L +9 more
europepmc +1 more source
3D‐Printed Gradient Shape‐Memory Strain Sensors With Rewritable Gauge Factors
A 3D‐printed shape‐memory strain sensor combines thermomechanical programming with gradient architectural design. Preset strain rewrites the gauge factor (GF), while the gradient geometry amplifies the response through strain redistribution. Reprogrammable sensitivity enables the same sensor to detect weak pulse signals and monitor large‐amplitude ...
Xuan Zhang +10 more
wiley +1 more source
Anthropogenic perturbations to atmospheric methane reflected in Greenland firn air clumped isotope measurements. [PDF]
Sivan M +14 more
europepmc +1 more source
An amphiphilic GOx nanoamphizyme was constructed by covalently introducing hydrophobic PPNI linkers onto GOx, enabling spontaneous self‐assembly into tunable nanoparticles. Mild crosslinking further stabilized the assemblies and enhanced catalytic performance and stability.
Yuan‐Hao Hsiao +4 more
wiley +1 more source
Aging of Urban Traffic Fine Particles Modulates Toxicity Mechanisms and Oxidative Stress Responses. [PDF]
Pardo M +18 more
europepmc +1 more source
Multidimensional‐Encoded High‐Fidelity Spectrometers With a Floating‐Base Bipolar Junction
A floating‐base bipolar junction photodetector enables multidimensional spectral encoding through synergistic gate‐ and drain‐bias modulation of interfacial barrier matching. The resulting complementary spectral responses form a diverse, weakly correlated response matrix, enabling robust and high‐fidelity spectral reconstruction even at sub‐nanoampere ...
Sang‐Hyeon Lee +11 more
wiley +1 more source
Coupled increases in pelagic fish productivity and export productivity during the Paleocene-Eocene Thermal Maximum. [PDF]
Zhou X, Zhang R, Tsang MY, Li M, Yao W.
europepmc +1 more source
Combining field‐effect surface passivation of a narrow‐bandgap tin–lead perovskite by diammonium ions with introducing oleyl‐based amphiphiles to create insulating interface layers between the absorber and the adjacent hole and electron transporting layers increases the open‐circuit voltage to 91.5% of the detailed‐balance limit and enhances the power ...
Vishnu Vijayakumar +18 more
wiley +1 more source

