Results 41 to 50 of about 152,162 (212)

Laser‐Synthesized Amorphous PdSe2‐x Nanoparticles: A Defect‐Rich Platform for High‐Efficiency SERS, Photocatalysis, and Photothermal Conversion

Advanced Materials Interfaces, EarlyView.
Using femtosecond ablation, we show that an ordered, stoichiometric crystalline PdSe2 target can be controllably converted into a stable, disordered, non‐stoichiometric, and highly functional amorphous nanomaterial, PdSe2−x${\rm PdSe}_{2-x}$. The obtained nanoparticles offer significant advantages over conventional planar plasmon‐free substrates due to
Andrei Ushkov, Nadezhda Belozerova, Dmitriy Dyubo, Ilya Martynov, Alexander Syuy, Daniil Tselikov, Georgy Ermolaev, Sergey V. Bazhenov, Roman I. Romanov, Ivan Kruglov, Anton A. Popov, Alexander Chernov, Alexey D. Bolshakov, Sergey Novikov, Andrey A. Vyshnevyy, Aleksey Arsenin, Andrei V. Kabashin, Gleb I. Tselikov, Valentyn Volkov   +18 more
wiley   +1 more source

Non-markovian mesoscopic dissipative dynamics of open quantum spin chains

, 2016
We study the dissipative dynamics of $N$ quantum spins with Lindblad generator consisting of operators scaling as fluctuations, namely with the inverse square-root of $N$.
Benatti, Fabio, Carollo, Federico, Floreanini, Roberto, Narnhofer, Heide   +3 more
core   +1 more source

Estimating persistence in the volatility of asset returns with signal plus noise models [PDF]

, 2010
This paper examines the degree of persistence in the volatility of financial time series using a Long Memory Stochastic Volatility (LMSV) model. Specifically, it employs a Gaussian semiparametric (or local Whittle) estimator of the memory parameter ...
Caporale, GM, Gil-Alana, LA
core   +2 more sources

Flexible, Integrated‐Porous Microneedle Sensor for Biofluid Sampling and On‐Site Biomarker Detection

Advanced Materials Technologies, EarlyView.
A paper‐integrated porous PGA microneedle array patch capable of both high strength and absorption capacity is proposed. With an image‐processing system, an optimized colorimetric sensor achieves a low limit of detection of 0.09 mm in cholesterol.
Haitao Deng, Heyi Jing, Jongho Park, Beomjoon Kim   +3 more
wiley   +1 more source

Distributed Bragg Reflector Based on Plasmonic Ag: Plasma Polymer Nanocomposites

Advanced Optical Materials, EarlyView.
This paper presents a comprehensive approach for the optical design and validation of silver nanocomposite‐based Distributed Bragg Reflectors (DBRs). It describes deriving material properties (n, k) and using them to predict the performance of the deposited optical stack, as well as to characterize imperfections in the DBR deposition, or even to ...
Zdeněk Krtouš, Pavel Pleskunov, Tereza Košutová, Milan Dopita, Ondřej Kylián, Bill Baloukas, Ludvík Martinu, Jaroslav Kousal   +7 more
wiley   +1 more source

Transport and fluctuation-dissipation relations in asymptotic and pre-asymptotic diffusion across channels with variable section

, 2014
We study the asymptotic and pre-asymptotic diffusive properties of Brownian particles in channels whose section varies periodically in space. The effective diffusion coefficient $D_{\mathrm{eff}}$ is numerically determined by the asymptotic behavior of ...
Cecconi, Fabio, Forte, Giuseppe, Vulpiani, Angelo   +2 more
core   +1 more source

Unlocking the THz Emission Potential of Sputtered Germanium Thin Films Through Structural and Optoelectronic Properties Optimization

Advanced Optical Materials, EarlyView.
An optimized RF‐sputtering process is developed for the deposition of n‐doped germanium thin films exhibiting strongly enhanced THz emission under fs‐laser excitation. By tuning deposition temperature and thickness, highly (111)‐oriented films with an effective bandgap of ∼0.77 eV and improved optoelectronic properties are achieved, leading to a ∼35 ...
Sanjit Varma, Loick Pichon, Ahmed Mohamed, Driss Mouloua, Xavier Ropagnol, Jinyang Liang, Tsuneyuki Ozaki, My Ali El Khakani   +7 more
wiley   +1 more source

Reaction-diffusion with a time-dependent reaction rate: the single-species diffusion-annihilation process

, 2004
We study the single-species diffusion-annihilation process with a time-dependent reaction rate, lambda(t)=lambda_0 t^-omega. Scaling arguments show that there is a critical value of the decay exponent omega_c(d) separating a reaction-limited regime for ...
ben-Avraham D, Bramson M, Burlisch R, Cardy J, Henkel M, Kang K, Kang K, L Turban, Lee B P, Lushnikov A A, Peliti L, Ódor G   +11 more
core   +2 more sources

Backpropagation Through Soft Body: Investigating Information Processing in Brain–Body Coupling Systems

Advanced Robotics Research, EarlyView.
This study explores how information processing is distributed between brains and bodies through a codesign approach. Using the “backpropagation through soft body” framework, brain–body coupling agents are developed and analyzed across several tasks in which output is generated through the agents’ physical dynamics.
Hiroki Tomioka, Katsuma Inoue, Yasuo Kuniyoshi, Kohei Nakajima   +3 more
wiley   +1 more source

Limiting distributions for explosive PAR(1) time series with strongly mixing innovation

, 2015
This work deals with the limiting distribution of the least squares estimators of the coefficients a r of an explosive periodic autoregressive of order 1 (PAR(1)) time series X r = a r X r--1 +u r when the innovation {u k } is strongly mixing.
A Aknouche, A. V. Vecchia, Abdelhakim Aknouche, Abdelhakim Aknouche, Abdelhakim Aknouche, Abdelhakim Aknouche, AW Vaart van der, Bernt P Stigum, BRENT M. TROUTMAN, Christian Francq, Denise R. Osborn, Erchin Serpedin, Eric Ghysels, G. C. Tiao, G. J. Adams, H. Hurd, H. Peter Boswijk, H. Peter Boswijk, I. V. Basawa, Jérôme Antoni, Marcello Pagano, Michael J. Monsour, P Franses, P. C. B. Phillips, P. Collet, Paul Doukhan, Peter Bloomfield, Richard C. Bradley, S Bittanti, T. W. Anderson, William A. Gardner, Ya Dragan   +31 more
core   +3 more sources