Results 61 to 70 of about 1,664,123 (378)

The nature of the long time decay at a second order transition point

, 2001
We show that at a second order phase transition, of \phi^4 like system, a necessary condition for streched exponential decay of the time structure factor is obeyed.
Edwards S. F., Kohlraush R., M Schwartz, Phillips J. C., Rajagopal A. K., Rajagopal A. K., Risken H., S. F Edwards, Schneider T., Schwartz M., Williams G.   +10 more
core   +1 more source

Simple quasi-exponential slope generator [PDF]

, 1969
Circuitry for digitally generating an exponentially decaying wave function permits discrete values to be sampled from the exponential waveform for comparison with a binary number of specified accuracy.
Anderson, T. O., Hurd, W. J.
core   +1 more source

Non-exponential decay via tunneling in tight-binding lattices and the optical Zeno effect

, 2006
An exactly-solvable model for the decay of a metastable state coupled to a semi-infinite tight-binding lattice, showing large deviations from exponential decay in the strong coupling regime, is presented.
A. L. Campillo, H. A. Haus, M. Razavy, Stefano Longhi   +3 more
core   +1 more source

Hands‐on protocol for preparing water‐soluble fractions from agri‐food samples for NMR‐based metabolomics analysis

FEBS Open Bio, EarlyView.
This research protocol outlines a workflow for nuclear magnetic resonance (NMR)‐based metabolomics in the agri‐food sector. Using two case studies—strawberry leaves (solid matrix) and wine (liquid matrix)—it details the procedures for sample preparation, data acquisition, and processing.
Andrea Fernández‐Veloso, Jaime Hiniesta‐Valero, Alejandra Guerra‐Castellano, Miguel A. De la Rosa, Irene Díaz‐Moreno   +4 more
wiley   +1 more source

Restrictions on parameters of power-law magnetic field decay for accreting isolated neutron stars [PDF]

, 2000
In this short note we discuss the influence of power-law magnetic field decay on the evolution of old accreting isolated neutron stars. We show, that, contrary to exponential field decay (Popov & Prokhorov 2000), no additional restrictions can be made ...
Colpi M., Duncan R. C., Geppert U., Goldreich P., Haberl F., Konar S., Konenkov D. Yu., Kouveliotou C., Lipunov V. M., Lipunov V. M., M. E. Prokhorov, Marsden D., Mereghetti S., Neühauser R., Perna R., Popov S. B., Popov S. B., Popov S. E., S. B. Popov, Schwope A. D., Treves A., Urpin V. A.   +21 more
core   +3 more sources

Antibiofilm activity of a chionodracine‐derived peptide by NMR‐based metabolomics of cell‐free supernatant of Acinetobacter baumannii clinical strains

FEBS Open Bio, EarlyView.
KHS‐Cnd peptide is able to impair biofilm formation and disaggregate mature biofilms in Acinetobacter baumannii clinical isolates. Differences in extracellular metabolites reflect changes in biofilm metabolism due to KHS‐Cnd treatment. Among the differentially represented extracellular metabolites upon KHS‐Cnd treatment, the significantly altered ...
Fernando Porcelli, Enrico Landi, Francesco Maiurano, Irene Paris, Rosanna Papa, Marco Artini, Laura Selan, Stefano Borocci, Francesco Buonocore, Esther Imperlini   +9 more
wiley   +1 more source

No classical limit of quantum decay for broad states

, 2010
Though the classical treatment of spontaneous decay leads to an exponential decay law, it is well known that this is an approximation of the quantum mechanical result which is a non-exponential at very small and large times for narrow states.
Fonda L, Galindo A, Huang K, Khalfin L A, Krylov N S, M Nowakowski, N G Kelkar, Pennington M R, Rutherford E   +8 more
core   +1 more source

Variational Multiscale Stabilization and the Exponential Decay of Fine-Scale Correctors [PDF]

, 2015
This paper reviews the variational multiscale stabilization of standard finite element methods for linear partial differential equations that exhibit multiscale features.
D. Peterseim
semanticscholar   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Decoherence factor as a convolution: an interplay between a Gaussian and an exponential coherence loss

New Journal of Physics, 2022
We identify and investigate the origin and nature of the transition between Gaussian and exponential forms of decoherence: the decoherence factor (that controls the time dependence of the off-diagonal terms of the density matrix expressed in the pointer ...
Bin Yan, Wojciech H Zurek
doaj   +1 more source