Results 101 to 110 of about 89,376 (355)

Accelerating Luminescence in Nanostructures: Exploring the Physical Limits and Impact of Ultrafast Emission in Nanoscale Materials

Advanced Photonics Research, EarlyView.
This review highlights recent advances in accelerating luminescence in nanostructures through cooperative emission, resonator coupling, and nonlocal light–matter interactions. By unifying concepts such as excitonic superradiance, superfluorescence, and the plasmonic Purcell effect, it reveals physical limits of ultrafast emission and their potential ...
Masaaki Ashida, Koichi Okamoto, Takuya Matsuda, Hajime Ishihara   +3 more
wiley   +1 more source

The Periodogram of fractional processes. [PDF]

We analyse asymptotic properties of the discrete Fourier transform and the periodogram of time series obtained through (truncated) linear filtering of stationary processes.
Velasco, Carlos
core  

Quasi-periodic pulse amplitude modulation in the accreting millisecond pulsar IGR J00291+5934

, 2017
We introduce a new method for analysing the aperiodic variability of coherent pulsations in accreting millisecond X-ray pulsars. Our method involves applying a complex frequency correction to the time-domain light curve, allowing for the aperiodic ...
Bult, Peter, van der Klis, Michiel, van Doesburgh, Marieke   +2 more
core   +1 more source

Identification and Characterization of an In Silico Designed Membrane‐Active Peptide with Antiviral Properties

Advanced Science, EarlyView.
An evolutionary molecular dynamics platform is used to design P1.6, a membrane‐active peptide that senses lipid packing defects in viral envelopes. P1.6 adopts a stabilized α‐helical structure upon membrane contact, disrupts virus‐like liposomes, and damages HIV‐1 particles.
Pascal von Maltitz, Niek van Hilten, Tatjana Weil, Thunchanok Thummaraj, Jeroen Methorst, Dennis Aschmann, Alexander Kros, Clarissa Read, Jasmina Gačanin, Herre Jelger Risselada, Jan Münch   +10 more
wiley   +1 more source

Gender of Fetus Identification Using Modified Mel-Frequency Cepstral Coefficients Based on Fractional Discrete Cosine Transform

IEEE Access
Fetal heart sounds is measured to follow the developing status of fetus. The used database of fetal heart sounds is obtained from Physionet challenge. In this paper, novel models are created to extract features from fetal heart sounds; to identify the ...
Mohamed Moustafa Azmy
doaj   +1 more source

Modified Local Whittle Estimation of the Memory Parameter in the Nonstationary Case [PDF]

Semiparametric estimation of the memory parameter is studied in models of fractional integration in the nonstationary case, and some new representation theory for the discrete Fourier transform of a fractional process is used to assist in the analysis. A
Katsumi Shimotsu, Peter C.B. Phillips
core  

ShearLab: A Rational Design of a Digital Parabolic Scaling Algorithm [PDF]

, 2011
Multivariate problems are typically governed by anisotropic features such as edges in images. A common bracket of most of the various directional representation systems which have been proposed to deliver sparse approximations of such features is the ...
Gitta Kutyniok, Gitta Kutyniok, Morteza Shahram, Xiaosheng Zhuang, Xiaosheng Zhuang   +4 more
core   +1 more source

Fractional Dynamics of Systems with Long-Range Space Interaction and Temporal Memory

, 2007
Field equations with time and coordinates derivatives of noninteger order are derived from stationary action principle for the cases of power-law memory function and long-range interaction in systems.
Tarasov, Vasily E., Zaslavsky, George M.
core   +2 more sources

Wireless Bioelectronic Modulation of Membrane Potential in Glioblastoma Using Carbon Nanotube Porins

Advanced Science, EarlyView.
A schematic illustrating glioblastoma cell membrane modulation using carbon nanotube porins (CNTPs) and an applied voltage. CNTPs enable ion flux leading to changes in membrane potential. This figure summarizes the concept of bioelectronic control of cell membrane voltage.
Fleur Groualle, David Onion, Julie A. Watts, Graham A. Rance, Aleksandr Noy, Beth Coyle, Frankie J. Rawson   +6 more
wiley   +1 more source

Fractional dynamics of systems with long-range interaction

, 2011
We consider one-dimensional chain of coupled linear and nonlinear oscillators with long-range power wise interaction defined by a term proportional to 1/|n-m|^{\alpha+1}.
Afraimovich, Afraimovich, Aubry, Baesens, Belousov, Boccaletti, Braun, Caputo, Carreras, Casagrande, Dyson, Dyson, Dyson, Erdélyi, Feller, Flach, Flach, Frohlich, Gaididei, George M. Zaslavsky, Gorenflo, Joyce, Krisch, Kuramoto, Kuramoto, Laskin, Laskin, Laskin, Laskin, Le Mehaute, MacKay, Majda, Meerschaert, Meerschaert, Meerschaert, Metzler, Milovanov, Montroll, Naber, Nakano, Nakano, Nakano, Nigmatullin, Nigmatullin, Oldham, Pikovsky, Podlubny, Rulkov, Saichev, Samko, Shima, Sousa, Tanaka, Tarasov, Tarasov, Tarasov, Tarasov, Tarasov, Tarasov, Uchaikin, Uchaikin, Vasily E. Tarasov, Weitzner, Winfree, Young, Zaslavsky, Zaslavsky, Zaslavsky, Zhabotinsky, Zosimov   +69 more
core   +1 more source