Results 131 to 140 of about 3,180 (242)

Rational Design of LiNi1‐xFexO2 Electrodes for Enhanced Oxygen Evolution Reaction Under Power‐Fluctuating Operations in Alkaline Water Electrolysis

open access: yesSmall Methods, EarlyView.
We develop Fe‐incorporated LiNiO2 for the OER in alkaline media, where Fe enhances Ni3+ oxidation state and optimizes eg orbital filling, significantly improving activity under power fluctuations. ABSTRACT The electrochemical performance of alkaline water electrolyzers is hindered by power fluctuations when integrated with renewable energy sources in ...
Younghan Jung   +9 more
wiley   +1 more source

Pulse-resolved Classification and Characteristics of Long-duration Gamma-Ray Bursts with Swift-BAT Data. I. Precursors versus Main Bursts

open access: yesThe Astrophysical Journal Supplement Series
Many long gamma-ray bursts (GRBs) exhibit complex prompt emission structures with multiple temporally distinct episodes, such as early-time precursors preceding the main burst. Whether these subcomponents share the same physical origin and classification
Liang Li   +4 more
doaj   +1 more source

BINARY NEUTRON STAR MERGERS: A JET ENGINE FOR SHORT GAMMA-RAY BURSTS. [PDF]

open access: yesAstrophys J Lett, 2016
Ruiz M   +3 more
europepmc   +1 more source

Investigation of Serrated Flow in Intercritically Annealed Medium Manganese Steel by In Situ Synchrotron X‐Ray Diffraction

open access: yessteel research international, EarlyView.
Serrations and stepwise austenite phase transformation were observed in cold‐rolled and annealed medium manganese steels. By in situ XRD experiments, these two phenomena were studied simultaneously. The results show that DSA leads to the creation of PLC bands and load drops in the specimen.
Shahroz Ahmed   +6 more
wiley   +1 more source

Fast-cooling Synchrotron in Decaying Magnetic Fields: Implications for the Gamma-Ray Burst Spectral Distribution

open access: yesThe Astrophysical Journal
The prompt emission spectra of gamma-ray bursts (GRBs) are commonly described by the empirical Band function. The typical low-energy spectral index is ∼−1, which poses a challenge to standard synchrotron radiation models.
Jia-Ming Chen   +7 more
doaj   +1 more source

Peptide‐directed nanovehicles enabling tumor‐selective ROS amplification and antitumor immunity

open access: yesVIEW, EarlyView.
Cancer cells are vulnerable to oxidative stress, yet exploit immune tolerance to escape destruction. In contrast, their metabolic profile is markedly altered to support rapid proliferation, accompanied by elevated production of reactive oxygen species (ROS).
Manuela Calin   +3 more
wiley   +1 more source

Uncovering Anomalous Gamma-Ray Bursts beyond Duration-based Classification

open access: yesThe Astrophysical Journal Letters
Gamma-ray bursts (GRBs) are traditionally classified by duration, and most machine-learning approaches likewise retain T _90 as an input parameter. However, the observed duration T _90 does not reliably trace the physical origin, because observational ...
Shi-Qi Wei   +13 more
doaj   +1 more source

Progress in bone tissue engineering biomaterials: Development, challenges, and prospects

open access: yesVIEW, EarlyView.
Scheme 1 Application of biomaterials in immunomodulation during bone tissue engineering. Abstract Bone defect repair remains a major clinical challenge in orthopedics. Over 2 million cases caused by trauma, tumors, and other factors occur annually, with large‐scale defects posing a particular bottleneck due to limited self‐healing capacity.
Yuanbin Zhang   +7 more
wiley   +1 more source

Jet Structure Imprint on the Curvature Tail of Gamma-Ray Burst Prompt Emission

open access: yesThe Astrophysical Journal
Even though the prompt emission of gamma-ray bursts (GRBs) is highly beamed, high-latitude emission still produces a distinct light-curve break after the intrinsic emission ceases and the edge of the jet comes into view.
Zhen-Yu Yan   +9 more
doaj   +1 more source

Novel approaches for drug development against chronic primary pain: A systematic review

open access: yesBritish Journal of Pharmacology, EarlyView.
Abstract Chronic primary pain (CPP) persisting for more than 3 months, associated with significant emotional distress without any known underlying cause, is an unmet medical need. Traditional or adjuvant analgesics do not provide satisfactory pain relief for a great proportion of these patients.
Valéria Tékus   +5 more
wiley   +1 more source

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