Results 81 to 90 of about 32,582 (169)

An Advanced High‐Performance Ultrafast Ammonium‐Ion Aqueous Battery Based on Dual‐Metal Redox Open Framework Molecular Magnet

Advanced Science, Volume 13, Issue 12, 27 February 2026.
The Prussian Blue Analogue molecular magnet KMnFeHCF is demonstrated as a high‐performance cathode for ultra‐fast aqueous ammonium‐ion batteries. A full cell using KMnFeHCF and graphite delivers ~71 mAh g−1 at 1.25 A g−1 and ~51 mAh g−1 at 2.2 A g−1, retaining 50% capacity after 1850 cycles. Its scalability, cycling stability, and low cost offer strong
Nilasha Maiti, Pramod Bhatt, Manoj K Sharma, Sher Singh Meena, Mayuresh D Mukadam, Soumen Samanta   +5 more
wiley   +1 more source

Toward a QFT treatment of nonexponential decay

EPJ Web of Conferences, 2018
We study the properties of the survival probability of an unstable quantum state described by a Lee Hamiltonian. This theoretical approach resembles closely Quantum Field Theory (QFT): one can introduce in a rather simple framework the concept of ...
Giacosa Francesco
doaj   +1 more source

Valence‐Engineering of CeO2 Redox Modulator Boosts the Oxygen Electrocatalysis Performance in Fe/Co Dual‐Atom Catalyst

Advanced Science, Volume 13, Issue 11, 23 February 2026.
Valence‐engineering of CeO2 redox modulator can remove the highly oxidative by‐products and accelerate the oxidation state transitions of Co/Fe centers in FeCo dual‐atom catalyst during oxygen reduction/evolution electrocatalysis. Therefore, the stability and activity issues are resolved, significantly enhancing the overall performance when used as an ...
Hengqi Liu, Jinzhen Huang, Shengyu Ma, Rui Xiong, Jiong Zhao, Qiang Fu, Hang Wei, Zhiguo Liu, Xianjie Wang, Tai Yao, Bo Song   +10 more
wiley   +1 more source

Relationships among the First Variation, the Convolution Product, and the Fourier-Feynman Transform

Rocky Mountain Journal of Mathematics, 1998
The definitions of the \(L_p\)-Fourier-Feynman (FF) transform, convolution product and first variation for functionals over the Wiener space in the Cameron-Storvick Banach algebra \({\mathcal S}\) are briefly recalled. Relationships between these are established, expressing: (i) the FF-transform of the convolution product and the convolution product of
Park, Chull, Skough, David, Storvick, David   +2 more
openaire   +3 more sources

On the Modeling of Irreversibility by Relaxator Liouville Dynamics

Annalen der Physik, Volume 538, Issue 2, February 2026.
A general approach to modeling irreversibility starting from microscopic reversibility is presented. A relaxator that breaks reversibility condenses in the Liouville operator of the relevant degrees of freedom. The irreversible relaxator Liouville equation contains memory effects and initial correlations of all degrees of freedom. Stationary states are
János Hajdu, Martin Janßen
wiley   +1 more source

CONDITIONAL GENERALIZED FOURIER-FEYNMAN TRANSFORM AND CONDITIONAL CONVOLUTION PRODUCT ON A BANACH ALGEBRA

Bulletin of the Korean Mathematical Society, 2004
The authors define the conditional generalized Fourier-Feynman transform and conditional generalized convolution product for functionals on a function space which is rather general than the Wiener space and was introduced by \textit{S. J. Chang} and \textit{D. Skoug} [Integral Transforms Spec. Funct. 14, No. 5, 375--393 (2003; Zbl 1043.28014)].
Chang, Seung Jun, Choi, Jae Gil
openaire   +2 more sources

Regularization in quantum field theory from the causal point of view

, 2009
The causal approach to perturbative quantum field theory is presented in detail, which goes back to a seminal work by Henri Epstein and Vladimir Jurko Glaser in 1973.
A. Aste, Adam, Aste, Aste, Aste, Aste, Aste, Aste, Aste, Becchi, Bogoliubov, Bollini, Brunetti, C. von Arx, Casher, Casher, Connes, Constantinescu, DeWitt, Dütsch, Dütsch, Dütsch, Dütsch, Dütsch, Dütsch, Epstein, G. Scharf, Gracia-Bondia, Grange, Grigore, Grigore, Hurth, Massey, Narison, Rohrlich, Scharf, Scharf, Scharf, Schroer, Schwartz, Schwinger, Senata, Streater, Strocchi, Vladimirov, Weinberg, ’t Hooft   +46 more
core   +3 more sources

Feynman rules and loop structure of Carrollian amplitudes

Journal of High Energy Physics
In this paper, we derive the Carrollian amplitude in the framework of bulk reduction. The Carrollian amplitude is shown to relate to the scattering amplitude by a Fourier transform in this method.
Wen-Bin Liu, Jiang Long, Xiao-Quan Ye
doaj   +1 more source

Analytic Fourier-Feynman transforms via the series approximation

, 2019
In this paper, we first establish an evaluation formula to calculate Wiener integrals of functionals on Wiener space. We then apply our evaluation formula to carry out very easily calculating for the analytic Fourier-Feynman transform of the functionals. Some examples are furnished to illustrate the usefulness of the evaluation formula.
openaire   +2 more sources

Comparative Study of Hydrothermal and Sonochemical Preparation of Cu and Ag Codoped ZnO/Graphene Nanocomposites for Enhanced Catalytic and Inactivation of Pathogens

ChemPhysChem, Volume 27, Issue 3, February 2026.
Cu–Ag codoped ZnO/graphene nanocomposites were synthesized via hydrothermal and sonochemical methods to enhance interfacial charge transfer and visible‐light activity. Strong Zn–O–C bonding, reduced bandgap, and improved electron mobility enabled superior photocatalytic dye degradation and antibacterial performance.
Jarvin Mariadhas, Vinodhkumar Ganesan, Sudhan Narayanan, Sarojini Jeeva Panchu, Hendrik C. Swart, Nelson Y. Dzade, Savariroyan Stephen Rajkumar Inbanathan   +6 more
wiley   +1 more source