Results 61 to 70 of about 5,307,006 (250)

Spatially Regulated Lithium Plating via Li2O‐Rich Interphase Enables Durable Fast‐Charging Hybrid Lithium Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A Li2O‐rich solid electrolyte interphase (SEI) is engineered on graphite through a propylene carbonate‐based electrolyte to spatially regulate Li plating. The homogeneous interphase lowers Li nucleation barriers, promotes conformal Li deposition around graphite particles, and suppresses dendritic accumulation, enabling durable hybrid Li‐ion/Li‐metal ...
Robert Kuphal   +8 more
wiley   +1 more source

Electron-Nuclear Double Resonance Study of Flavodoxin from Peptostreptococcus Elsdenii

open access: yes, 1973
The proton electron-nuclear double resonance (ENDOR) of the semiquinone of Peptostreptococcus elsdenii flavodoxin has been studied at – 155°. Studies with flavodoxin derivatives in which the natural coenzyme has been replaced by C(8)[bond]CD 3 ,[bond]C(
Müller, Franz   +2 more
core   +1 more source

Emerging Post‐CMOS Hardware Neurons for Brain‐Inspired Computing: Devices, Circuits, and System Integration

open access: yesAdvanced Functional Materials, EarlyView.
The physical realization of artificial neurons is a critical challenge for energy‐efficient neuromorphic computing. This review presents a comprehensive analysis of the evolution of artificial neuron implementations from conventional CMOS to emerging post‐CMOS technologies.
Kannan Udaya Mohanan   +4 more
wiley   +1 more source

Electron spin resonance and electron nuclear double resonance study of diastereomeric nitroxyl radicals produced by spin trapping

open access: yes, 1982
Electron spin resonance and electron nuclear double resonance spectra of nitroxyl radicals having two asymmetric carbons on one side of the nitroxyl function were observed.
Keigi Kuwata, Yashige Kotake
core   +1 more source

Melanin's Role in Balancing Mechanical Strength and Reproductive Output in Environmentally Stressed Fungal Spores

open access: yesAdvanced Functional Materials, EarlyView.
Melanin content directly controls fungal spore mechanical properties, with pigmented spores achieving rupture forces two orders of magnitude higher than hyaline spores. Environmental stress drives this quantity‐quality tradeoff; stressed species invest energy in melanin‐reinforced, mechanically superior thick‐walled, super‐hydrophobic spores, while ...
Atul Agrawal, Steven E. Naleway
wiley   +1 more source

Cross polarization in electron nuclear double resonance by satisfying the Hartmann-Hahn condition

open access: yes, 1989
The polarization of electronic spins S is transferred to nuclear spins / by cross relaxation in an electron nuclear double resonance experim ent. The cross relaxation becomes very efficient with a time constant Tcr o about 0.5 m icroseconds if the ...
Fritsch, R., Hausser, K., Brunner, H.
core   +1 more source

Protein-induced changes in DNA structure and dynamics observed with noncovalent site-directed spin-labeling and PELDOR [PDF]

open access: yes, 2012
Site-directed spin labeling and pulsed electron–electron double resonance (PELDOR or DEER) have previously been applied successfully to study the structure and dynamics of nucleic acids. Spin labeling nucleic acids at specific sites requires the covalent
Reginsson, Gunnar Widtfeldt   +6 more
core   +1 more source

EPR spectroscopy reveals antioxidant manganese defenses in the Lyme disease pathogen Borrelia burgdorferi

open access: yesmBio
Oxidative stress defense in aerobic bacteria relies on Mn-superoxide dismutase (MnSOD) and antioxidant Mn-metabolite complexes (H-Mn) to quench superoxide radicals (O2•−).
Andrés F. Londoño   +9 more
doaj   +1 more source

Rapid Microwave Plasma Engineering of HfO2/C@C Core‐Shell Fibrous Membrane Toward Flexible High‐Performance Electromagnetic Wave Absorption

open access: yesAdvanced Functional Materials, EarlyView.
Rapid microwave plasma torch engineering tunes crystal phases, carbon graphitization and oxygen‐vacancy defects in HfO2/C@C core‐shell fibrous membranes. Synergistic multi‐loss effects optimize impedance matching to deliver −65.75 dB reflection loss and a 7.37 GHz effective bandwidth for flexible electromagnetic wave absorption.
Qichao Ding   +14 more
wiley   +1 more source

Enhancement of quantum coherence in solid-state qubits via interface engineering

open access: yesNature Communications
Shallow nitrogen-vacancy (NV) centers in diamond are promising quantum sensors but suffer from noise-induced short coherence times due to bulk and surface impurities.
Wing Ki Lo   +10 more
doaj   +1 more source

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