Results 221 to 230 of about 3,618,762 (343)

Multi‐Functional ZnO–Te Heterojunction Devices Enabling Compact Frequency Quadrupler

open access: yesAdvanced Functional Materials, EarlyView.
Wafer‐scale ZnO–Te heterojunction devices featuring tunable double negative differential transconductance (D‐NDT) are demonstrated at ≤ 200°C. Leveraging this unique characteristic, a single‐stage frequency quadrupler is realized, achieving a 64%–75% reduction in device count.
Jae Hyeon Jun   +8 more
wiley   +1 more source

Long-Term Prognosis of Adult Patients with Persistent Cough Post COVID-19 and Its Risk Factors: A Nationwide Prospective Study. [PDF]

open access: yesLung
He W   +37 more
europepmc   +1 more source

Highly Conductive and Stretchable Photothermal CuSe Fiber for Wearable Electronics and Implantable Drug Release Systems

open access: yesAdvanced Functional Materials, EarlyView.
The conductive and stretchable photothermal CuSe fiber is fabricated for versatile biomedical applications. This CuSe fiber functions as a reliable wearable strain sensor and heater due to its high conductivity, stretchability and photothermal efficiency.
Kukro Yoon   +9 more
wiley   +1 more source

Built‐In Interfacial Electric Field in Hydroxyl‐Terminated MXene/COF Heterostructures for Enhanced Solid‐State Supercapacitors

open access: yesAdvanced Functional Materials, EarlyView.
Hydroxyl‐terminated MXene is integrated with a redox‐active covalent organic framework through electrostatic self‐assembly followed by hydrothermal treatment to construct MXene/COF heterostructures with a built‐in interfacial electric field. Termination‐controlled interfacial electronic modulation induces charge redistribution and favorable band ...
Cheru Fekadu Molla   +4 more
wiley   +1 more source

The African Republic of Liberia and the Belgian Congo Based on the Observations Made and Material Collected During the Harvard African Expedition, 1926-1927.

open access: green, 1931
Harvard African Expedition 1926-1927   +3 more
openalex   +2 more sources

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