Results 291 to 300 of about 839,047 (377)

Compact femtosecond fiber laser tunable from 800 to 850 nm with pulse energy exceeding 5 nJ. [PDF]

Sci Rep
Stoliarov D, Koviarov A, Galiakhmetova D, Rafailov E.   +3 more
europepmc   +1 more source

Simulation of Hollow‐Core Photonic Crystal Fibre‐Based Photothermal Spectral C2H2 Gas Sensor

High Voltage, EarlyView.
ABSTRACT Fault characteristic gas analysis is one of the important methods for monitoring the operating status of power equipment. This study presents the construction of a simulation model for a hollow‐core photonic crystal fibre (HC‐PCF)‐based photothermal spectroscopy gas detection system.
Fuping Zeng, Xianzong Chao, Xinghai Jiang, Yanfeng Xiao, Qiang Yao, Ju Tang   +5 more
wiley   +1 more source

Cooperativity of Electron Transfer Coupled Spin Transitions in a Tetranuclear Fe/Co Prussian Blue Analogue Revealed by Ultrafast Spectroscopy

Angewandte Chemie, Volume 137, Issue 27, July 1, 2025.
Ultrafast pump‐probe spectroscopies show that irradiation of a square Fe/Co Prussian blue analogue induces electron transfer within one Fe–Co subunit followed by fast spin crossover, and coupled equilibria between all states trigger a second electron transfer coupled to spin crossover in the other Fe–Co subunit on a ns timescale.
Jan‐Hendrik Borter, Simindokht Gol Kar, Sayan Kangsa Banik, Serhiy Demeshko, Rainer Oswald, Martí Gimferrer, Ricardo A. Mata, Dirk Schwarzer, Franc Meyer   +8 more
wiley   +2 more sources

Design and Implementation of 24-GHz and 48-GHz VCOs Using Noise Filtering Technique in 90-nm CMOS. [PDF]

Micromachines (Basel)
Ku CC, Wang S.
europepmc   +1 more source

Resonance‐Enhanced Multiphoton Ionization Spectroscopy of Monocyclic and Polycyclic Aromatic Hydrocarbons in the Gas Phase

Rapid Communications in Mass Spectrometry, Volume 39, Issue 19, 15 October 2025.
ABSTRACT Rationale Aromatic hydrocarbons (AHs) and polycyclic aromatic hydrocarbons (PAHs) pose significant risks to human health and the environment due to their toxic and carcinogenic properties. These depend strongly on molecular structure, with even isomers exhibiting different characteristics.
Carolin Schwarz, Fabian Etscheidt, Christian Gehm, Johannes Passig, Sven Ehlert, Thorsten Streibel, Ralf Zimmermann   +6 more
wiley   +1 more source

Quantum Synchronization via Active-Passive Decomposition Configuration: An Open Quantum-System Study. [PDF]

Entropy (Basel)
Yang N, Yu T.
europepmc   +1 more source

Experimental Kinetic Study of the Reactions of Hydroxyl Radicals With Three Oxymethylene Ethers and With 1,3,5‐Trioxane, Tetrahydrofuran, and Tetrahydrofuran‐d8

International Journal of Chemical Kinetics, Volume 57, Issue 8, Page 497-506, August 2025.
ABSTRACT Polyoxymethylene dimethyl ethers, CH3O(CH2O)nCH3 with n ≥ 1 (abbreviated in the literature also as OME‐n, PODEn, POMDMEn, or OMDMEn) are currently discussed as renewable fuels. Despite fuel + OH reactions are crucial for the combustion chemistry and atmospheric degradation of fuels, experimental kinetic data on OME‐n + OH do not exist in the ...
Miu G. Mach, Anne Wolf, Bianca Krumm, Felix Poschen, Christian Kühn, Matthias Olzmann   +5 more
wiley   +1 more source

Compacting the Time Evolution of the Forced Morse Oscillator Using Dynamical Symmetries Derived by an Algebraic Wei-Norman Approach. [PDF]

J Chem Theory Comput
Hamilton JR, Remacle F, Levine RD.
europepmc   +1 more source

A general model for designing the chirality of exciton-polaritons. [PDF]

Nanophotonics
Bai P, Peng S.
europepmc   +1 more source

Application of the Hill-Wheeler Formula in Statistical Models of Nuclear Fission: A Statistical-Mechanical Approach Based on Similarities with Semiconductor Physics. [PDF]

Entropy (Basel)
Maruyama H.
europepmc   +1 more source