Results 141 to 150 of about 1,086,626 (358)

π‐Bridge Engineering of Nonfullerene Acceptors for Organic Photodiodes: Extension of the Near Infrared Response Beyond 1200 nm

open access: yesAdvanced Functional Materials, EarlyView.
A π‐bridge engineering strategy enhances intramolecular charge transfer, enabling non‐fullerene acceptors to extend near‐infrared absorption beyond 1200 nm. The resulting organic photodiodes exhibit high detectivity and fast response. These high‐performance devices demonstrate practical potential in photoplethysmography and optical wireless ...
Meng Qiang Li   +7 more
wiley   +1 more source

Self sealing disconnect for tubing forms metal seal after breakaway [PDF]

open access: yes, 1964
Disconnect fittings form a positive metal seal when the fill tube pulls against a metal sleeve when disconnected by force. A specially designed sleeve surrounds the fill tube.
Gernandt, H. H.
core   +1 more source

Defects Dynamic in Photo‐Excited CeO2 and their Influence on CO2 Photoreduction

open access: yesAdvanced Functional Materials, EarlyView.
X‐ray photoelectron spectroscopy study under light excitation is presented to track the defect dynamic (Ce4+ to Ce3+) in CeO2. Surface enhanced Raman spectroscopy confirmed the key role of Ce3+ states in controlling charge and energy transfer across the CeO2‐dye molecule interface.
Rambabu Yalavarthi   +3 more
wiley   +1 more source

Microscale Tin–Bismuth Alloy Prepared via Cooling Rate Control as Anode Material for High‐Performance Lithium‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
To investigate the mechanisms about the enhanced buffering effect and morphological retention in fully lithiated Sn–Bi alloys, this study introduces a new bulk bimetallic Sn–Bi alloy with fine grains of uniformly distributed Sn and Bi alloys (≈50 nm) via cooling rate control. This design effectively relieves internal energy buildup and suppresses crack
Hyeon Seo Park   +6 more
wiley   +1 more source

The Bear Hug Test Improves Sensitivity Compared With the Belly Press Test for Identifying Subscapularis Tendon Tears, but Both Tests Miss the Majority of Partial Tears

open access: yesArthroscopy, Sports Medicine, and Rehabilitation
Purpose: To investigate the performance of the bear hug (BH) and belly press (BP) tests in diagnosing tears of the subscapularis (SSC). Methods: A retrospective review was conducted on prospectively maintained data on patients who underwent arthroscopic ...
Ali Ihsan Kilic, M.D.   +4 more
doaj   +1 more source

Ultrasound of the shoulder.

open access: yesMedical ultrasonography, 2012
Ultrasonography (US) is a helpful imaging tool in the evaluation of the musculoskeletal system. It has some advantages over the other imaging techniques, such as plain radiography, computed tomography and magnetic resonance imaging, represented by the non-invasiveness and multiplanar imaging capability, repeatability, lack of radiation burden, good ...
T. Petranova   +6 more
openaire   +4 more sources

Photoluminescent UV Light Modulation via Anisometric Carbon Nanodots for UV–Visible Shutter and UV Sensor

open access: yesAdvanced Functional Materials, EarlyView.
Anisometric carbon nanodots are synthesized directly from a liquid crystal precursor and embedded into polymer network liquid crystals to create soft, multifunctional photonic films. These hybrid devices exhibit polarized photoluminescence, broad UV absorption, and fast, electrically tunable light modulation.
Mangesh D. Patekari   +4 more
wiley   +1 more source

Reconstruction of a Chronic, Retracted Proximal Hamstring Rupture Using Achilles Tendon Allograft

open access: yesVideo Journal of Sports Medicine
Background: Chronic, retracted proximal hamstring ruptures are a challenging problem and can be a significant cause of pain and disability if left untreated. Allograft augmentation is a viable surgical option with good clinical outcomes.
David R. Swanson MD, MS   +4 more
doaj   +1 more source

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