Results 131 to 140 of about 594,288 (306)

Enhancing Cycle Stability in LiNiO2 with Phase transition suppression via Crystalline Disordered Surface Layer

open access: yesAdvanced Science, EarlyView.
The thickness of the disordered surface phase on single‐crystal LiNiO2 is controlled during synthesis. LiNiO2 with a crystalline disordered surface layer exhibits suppression of the H2–H3 phase transition. This mitigates structural degradation with improved cycling stability.
Sooyeon Choi   +9 more
wiley   +1 more source

Multi‐Region Brain Organoids Integrating Cerebral, Mid‐Hindbrain, and Endothelial Systems

open access: yesAdvanced Science, EarlyView.
Multi‐Region Brain Organoids combine cerebral, mid/hindbrain, and endothelial components into an advanced 3D model capturing 80% of fetal brain cellular diversity. This platform reveals essential endothelial‐neural signaling networks that maintain region‐specific intermediate progenitors during hindbrain development.
Anannya Kshirsagar   +10 more
wiley   +1 more source

Mechanical and Electrical Properties of Free‐standing Polycrystal Diamond Membranes

open access: yesAdvanced Science, EarlyView.
We demonstrate a novel approach for synthesizing free‐standing and transferable polycrystalline diamond membranes (PCDm). Two types of PCDm cantilevers—Top‐Surface‐Up (TSU) and Bottom‐Surface‐Up (BSU)—are fabricated and systematically analyzed for mechanical and electrical properties, including elastic modulus, Bandgap, sheet resistance under the ...
Chenyu Wang   +6 more
wiley   +1 more source

Current Approaches and Challenges in Advanced Oxidation Processes for Nanoplastic Degradation

open access: yesAdvanced Science, EarlyView.
This review explores recent progress in advanced oxidation processes (AOPs) for the degradation of nanoplastics (NPs) in water. It presents a comparative assessment of key AOP technologies and identifies current limitations in analytical methods and treatment efficiency.
Arezou Fazli   +2 more
wiley   +1 more source

Adaptive Catalytic Nanointerfaces for Controlled Hydrogen Evolution: an in Situ Electrochemical Approach

open access: yesAdvanced Science, EarlyView.
The ability to switch the HER activity of precious metals at will through a reconfigurable step‐edge/nanoparticle interface, using sulfur as an inorganic mediator, is demonstrated for the first time. This methodology addresses the durability issue of highly catalytic precious metals, which are typically single‐use, thereby extending their lifespan ...
Carlos Herreros‐Lucas   +6 more
wiley   +1 more source

A Wearable In‐Pad Diagnostic for the Detection of Disease Biomarkers in Menstruation Blood

open access: yesAdvanced Science, EarlyView.
MenstruAI integrates a paper‐based biosensor into sanitary pads to detect biomarkers in menstrual blood, enabling accessible, lab‐free diagnostics health. The platform supports early disease detection, especially in underserved communities, while challenging menstrual stigma and opening pathways for scalable, inclusive, and sustainable population ...
Lucas Dosnon   +3 more
wiley   +1 more source

Lucas Numbers with Lehmer Property

open access: yes, 2015
A composite positive integer n is Lehmer if (n) divides n-1, where (n) is the Euler's totient function. No Lehmer number is known, nor has it been proved that they don't exist. In 2007, the second author [7] proved that there is no Lehmer number in the Fibonacci sequence.
Faye, Bernadette, Luca, Florian
openaire   +2 more sources

Extending the Range of Sizes of Monodisperse Core‐Shell Hydrogel Capsules from Composite Jet Breakup by Combined Electrical and Mechanical Actuation

open access: yesAdvanced Science, EarlyView.
We present a microfluidic approach combining electrical and mechanical actuation to improve control over liquid jet breakup and droplet formation. By adjusting excitation frequency and applying an electric field, coalescence is reduced and droplet uniformity is enhanced.
Lucas Suire   +3 more
wiley   +1 more source

Binomial tribonacci sums [PDF]

open access: yesDiscrete Mathematics Letters, 2021
Kunle Adegoke   +2 more
doaj   +1 more source

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