Results 101 to 110 of about 20,817 (265)

Support‐Driven Hydrogen Migration Enhances Ammonia Decomposition in Direct Ammonia Protonic Ceramic Fuel Cells

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Enhanced hydrogen species migration enabled by FN/BZY catalyst mitigates intermediate accumulation and improves DA‐PCFC performance during ammonia decomposition. Ammonia, with its high hydrogen density and carbon‐free nature, serves as ideal fuel for direct ammonia protonic ceramic fuel cells (DA‐PCFCs).
Meijuan Fei   +9 more
wiley   +1 more source

Developing a Suitable Anion Exchange Layer Structure for Pure–Water Fed Bipolar Membrane CO2 Electrolysis

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A porous anion exchange layer (AEL) is implemented in a forward‐biased bipolar membrane CO2 electrolyzer to suppress carbonate crossover, support CO2 regeneration and maintain cathode alkalinity. Two fabrication strategies are compared—deposition on a silver gas diffusion electrode (GDE) or on the CEM—showing that a porous AEL‐coated GDE provides the ...
Henning Lorenz   +3 more
wiley   +1 more source

To find the correlation between transverse cerebellar diameter measured by cranial ultrasound within 48 h of birth and gestational age as estimated by last menstrual period

open access: yesAsian Journal of Medical Sciences
Background: Gestational age (GA) may be assessed at any time during pregnancy, and several modes of assessment exist, each requiring better diagnostic techniques that may result in more precise estimates of GA, which could lead to quicker medical ...
Monit Kumar Goyal   +6 more
doaj   +1 more source

Enhanced Urea Oxidation Reaction by Mn‐Doped Nickel Hydroxide From Wastewater

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Mn incorporation modifies the hydroxide structure and modulates the electronic properties of the Ni centers, promoting the formation of catalytically active NiOOH species. Mn dopants induce a favorable electronic effect but do not directly participate in the UOR mechanism, enhancing the overall urea oxidation rate and resulting in increased hydrogen ...
Filippo Bano   +8 more
wiley   +1 more source

Korelasi Nilai Transcranial Doppler Pulsatility Index (TCD-PI) dengan Durasi Ventilasi Mekanik pada Pasien Pascabedah Otak

open access: yesJurnal Anestesi Perioperatif
Peningkatan tekanan intrakranial (TIK) merupakan kondisi umum pada pasien pascabedah otak dan berpotensi menyebabkan penurunan kesadaran, gangguan drive napas, serta cedera paru akut, yang dapat menyulitkan proses penyapihan ventilator.
Raka Jati Prasetya   +2 more
doaj   +1 more source

Enhancing g‐C3N4 Photocatalytic Activity: K‐Doping and CuO Heterojunction for Selective CO2 Conversion to CH4

open access: yesElectron, EarlyView.
The CuO/K‐g‐C3N4 heterostructure photocatalyst achieves selective CO2 reduction to CH4 (93.03% selectivity) under visible‐light irradiation. K‐doping enhances crystallinity, whereas CuO forms a p‐n heterojunction to promote charge separation and electron transfer.
Ahmed Ismail   +8 more
wiley   +1 more source

Global South research is critical for understanding brain health, ageing and dementia

open access: yesClinical and Translational Medicine, 2023
Sandra Baez   +2 more
doaj   +1 more source

Waste to Hydrogen: Transforming Food Waste Into Biohythane (Bio‐H2 + Bio‐CH4) in a Two‐Stage Reactor With the Aid of a Metal‐Ion Catalyst

open access: yesEnergy Science &Engineering, EarlyView.
This study demonstrates a two‐stage catalytic bioreactor system that converts real food waste into high‐purity biohydrogen and biohythane. In Stage‐1, an enriched Clostridium thermocellum culture combined with Ni2+─Fe2+ bimetallic catalysis enhances hydrolysis efficiency and hydrogenase activity, resulting in a 77% increase in H2 yield and 75.8% purity
K. V. Sreedharan   +5 more
wiley   +1 more source

A modular and programmable electrolyte platform: Covalently anchored thermochromic hydrogels for on‐demand electrochromic devices

open access: yesFlexMat, EarlyView.
Developing stable, multifunctional hydrogel electrolytes without compromising performance presents a considerable challenge in the field. In this study, we introduce a material design strategy with broad applicability to combinations of functional polymeric segments, ionic monomers, and salts.
Manyu Liu   +7 more
wiley   +1 more source

Transcranial Doppler as a Primary Screening Tool for Detecting Right‐to‐Left Shunt in Cryptogenic Stroke Patients?

open access: yesBrain and Behavior
Background Cryptogenic stroke (CS), a subtype of ischemic stroke with undetermined etiology, accounts for approximately 25% of the cases. Patent foramen ovale (PFO) is an important potential cause of CS via paradoxical embolism.
Payam Sasannejad   +4 more
doaj   +1 more source

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