Results 181 to 190 of about 11,990 (256)

Lasing of a cavity-based X-ray source. [PDF]

Nature
Rauer P, Bahns I, Friedrich B, Casalbuoni S, Di Felice M, Dommach M, Freijo Martin I, Freund W, Grünert J, Guetg M, Karpics I, Karabekyan S, Koch A, Kujala N, La Civita D, Liu J, Maltezopoulos T, Makita M, Mayet F, Müller L, Rio B, Samoylova L, Schmidtchen S, Scholz M, Silenzi A, Strauch V, Thoden D, Wohlenberg T, Vannoni M, Yang F, Decking W, Rossbach J, Sinn H.   +32 more
europepmc   +1 more source

Material‐Driven Neuronal Oscillators and Filters via Active Reactance in CC‐NDR and VC‐NDR Electro‐Thermal Memristors

Advanced Physics Research, EarlyView.
Active reactance in electro‐thermal memristors emerges intrinsically from rapid thermal switching of device resistance, linking current‐controlled and voltage‐controlled negative differential resistance to neuronal spiking dynamics. Opposing temperature coefficients of resistance give rise to active inductive or capacitive responses, enabling tunable ...
Fatme Jardali, Gwyneth Svatek, R. Stanley Williams, Timothy D. Brown, Patrick J. Shamberger   +4 more
wiley   +1 more source

A 0.6-V All-Digital Temperature Sensor with Reduced Supply Sensitivity. [PDF]

Sensors (Basel)
Zhou H, Wang Y, Xie S.
europepmc   +1 more source

Impedance Spectroscopy of Bifurcation Oscillations in S‐Type Self‐Oscillatory Devices

Advanced Physics Research, EarlyView.
Impedance spectroscopy (IS) reveals stability regimes and bifurcation dynamics in S‐type self‐oscillatory devices. By linking nonlinear control theory with frequency‐domain measurements, experimental signatures of oscillations, entrainment, and phase locking are directly identified.
Gonzalo Rivera‐Sierra, Roberto Fenollosa, Jenifer Rubio‐Magnieto, Nripan Mathews, Si En Ng, Juan Bisquert   +5 more
wiley   +1 more source

Transient ice ring observed during the 15 January 2022 eruption of Hunga volcano. [PDF]

Commun Earth Environ
Prata AT, Grainger RG, Taylor IA, Lambert A.   +3 more
europepmc   +1 more source

Shedding Light on Synthetic Autocatalysis: From Conventional Closed‐Shell Chemistries to Overlooked Open‐Shell Occurrences

Chemistry – A European Journal, EarlyView.
Why add another catalyst when the product itself holds the power to catalyze its own formation? Autocatalysis in synthetic chemistry enhances reaction efficiency and uncovers novel catalytic behavior across both closed‐shell and open‐shell systems, expanding reactivity and enabling innovative design strategies.
Jaspreet Kaur, Joshua P. Barham
wiley   +1 more source

Photochemistry of Aromatic N‐Oxides in Water Probed by Time‐Resolved X‐ray Absorption Spectroscopy

Chemistry – A European Journal, EarlyView.
Time‐resolved XAS at the nitrogen and oxygen K‐edges is applied to the photorearrangement of two N‐oxides in water. Pyridine N‐oxide rapidly forms the oxaziridine isomer. Pyridazine N‐oxide undergoes ring opening to the diazo compound, without any evidence of intermediates.
Maximilian Paradiz Domínguez, Robby Büchner, Mattis Fondell, Albert M. Brouwer   +3 more
wiley   +1 more source

Molecular excitons in arylazopyrazole aggregates: a quantum chemical study. [PDF]

Sci Rep
Zehle A, Penschke C, Titov E.
europepmc   +1 more source

Design Principles for Next Generation of Small Organic Molecules for Photodynamics Therapy Revealed by Nonadiabatic Molecular Dynamics

Chemistry – A European Journal, EarlyView.
Molecular design reshapes the landscape of excited‐state relaxation. Nonadiabatic dynamics reveal how electronic structure guides population flow between competing pathways beyond static energetic arguments. ABSTRACT Nitrobenzochalcogenadiazole derivatives are emerging candidates for photodynamic therapy (PDT), yet the precise mechanisms governing ...
Vinícius N. da Rocha, Davide Avagliano, Paulo C. Piquini   +2 more
wiley   +1 more source

Disordered light-harvesting aggregates can host functional vibronic couplings at room temperature. [PDF]

Nat Commun
Thomas AS, Roy C, Roy I, Bhat VN, Ghosh S, Tiwari V.   +5 more
europepmc   +1 more source