Results 111 to 120 of about 24,838 (286)

Spiro‐Phenothiazine Hole‐Transporting Materials: Unlocking Stability and Scalability in Perovskite Solar Cells

open access: yesAdvanced Materials, EarlyView.
Fluorene‐functionalized spiro‐phenothiazine (PTZ‐Fl) exhibits strong Li+ affinity and thermal stability, enabling a PCE of 25.75% in small‐area cells and 22.07% in 25 cm2 modules. Under ISOS‐L3 conditions, PTZ‐Flbased devices retain over 80% efficiency after 1000 hours, demonstrating superior stability and scalability compared to spiro‐OMeTAD for next ...
Javier Urieta‐Mora   +17 more
wiley   +1 more source

Spatiotemporal alterations of thalamo-cortical effective connectivity in major depressive disorder patients

open access: yesBMC Psychiatry
Background Thalamic structural and functional abnormalities in major depressive disorder (MDD) are linked to impairments in diverse cognitive and emotional functions via the thalamo-cortical circuit.
Chengxiao Yang   +3 more
doaj   +1 more source

Transient Charging of Mixed Ionic‐Electronic Conductors by Anomalous Diffusion

open access: yesAdvanced Materials, EarlyView.
This article explores charge transport in mixed ionic‐electronic conductors (MIECs) through electrochemical impedance spectroscopy and transient current analysis. Focusing on PEDOT:PSS, WO3, and n‐doped PBDF, it uncovers the impact of anomalous diffusion via fractional modeling. The study reveals key correlations that deepen understanding and guide the
Heyi Zhang   +9 more
wiley   +1 more source

Premature circuit clotting due to likely mechanical failure during continuous renal replacement therapy

open access: yes, 2010
Failure of extracorporeal circuit (EC) function during continuous renal replacement therapy (CRRT) appears most likely due to progressive circuit clotting or, in some cases, most likely due to mechanical problems that affect flow.
In Byung Kim (20022828)   +3 more
core  

Silicon-Germanium Heterojunction Bipolar Transistors for Mm-wave Systems: Technology, Modeling and Circuit Applications

open access: yes, 2018
The semiconductor industry is a fundamental building block of the new economy, there is no area of modern life untouched by the progress of nanoelectronics.
Rinaldi, Niccolò   +3 more
core   +1 more source

Reconfigurable nonlinear nonreciprocal transmission in a silicon photonic integrated circuit

open access: yes, 2020
We present a programmable silicon photonic integrated circuit (PIC) that can be configured to show nonlinear nonreciprocal transmission at high optical input power.
Li, Ang, Bogaerts, Wim
core   +1 more source

Crystal Growth Engineering for Dendrite‐Free Zinc Metal Plating

open access: yesAdvanced Materials, EarlyView.
This research employed the rare‐earth ion dysprosium (Dy) to modulate aqueous zinc (Zn) metal plating. Integrated multiscale experiments and computational modeling unveiled the preferential adsorption of Dy on specific crystal facets, which activated screw dislocation‐driven Zn growth.
Guifang Zeng   +10 more
wiley   +1 more source

Portable Soil EC - Development of an electronic device for determining soil electrical conductivity. [PDF]

open access: yes
Decision-making in agriculture demands continuous monitoring, a factor that propels the advancement of tools within Agriculture 4.0. In this context, understanding soil characteristics is essential.
RABELLO, L. M.   +6 more
core  

Theta Oscillations Provide Temporal Windows for Local Circuit Computation in the Entorhinal-Hippocampal Loop

open access: yes, 2009
SummaryTheta oscillations are believed to play an important role in the coordination of neuronal firing in the entorhinal (EC)-hippocampal system but the underlying mechanisms are not known.
Sirota, Anton   +3 more
core   +1 more source

Self‐Cooling Molecular Spin Qudits

open access: yesAdvanced Materials, EarlyView.
A material made of [GdEr] molecular dimers can encode a qudit and perform as a magnetic refrigerant. Microwave resonant pulses coherently manipulate its 16 spin states, while direct demagnetization measurements cool the material and a device down to temperatures below 1 K.
Elías Palacios   +12 more
wiley   +1 more source

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