Results 51 to 60 of about 165,185 (180)

A Comparison of Splitting Techniques for 3D Complex Padé Fourier Finite Difference Migration

International Journal of Geophysics, 2011
Three-dimensional wave-equation migration techniques are still quite expensive because of the huge matrices that need to be inverted. Several techniques have been proposed to reduce this cost by splitting the full 3D problem into a sequence of 2D ...
Jessé C. Costa, Débora Mondini, Jörg Schleicher, Amélia Novais   +3 more
doaj   +1 more source

Visible-light Promoted Atom Transfer Radical Addition−Elimination (ATRE) Reaction for the Synthesis of Fluoroalkylated Alkenes Using DMA as Electron-donor

Molecules, 2020
Here, we describe a mild, catalyst-free and operationally-simple strategy for the direct fluoroalkylation of olefins driven by the photochemical activity of an electron donor−acceptor (EDA) complex between DMA and fluoroalkyl iodides.
Wen-Wen Xu, Le Wang, Ting Mao, Jiwei Gu, Xiao-Fei Li, Chun-Yang He   +5 more
doaj   +1 more source

On Hurst exponent estimation under heavy-tailed distributions

, 2012
In this paper, we show how the sampling properties of the Hurst exponent methods of estimation change with the presence of heavy tails. We run extensive Monte Carlo simulations to find out how rescaled range analysis (R/S), multifractal detrended ...
Alessio, Alvarez-Ramirez, Alvarez-Ramirez, Anis, Barkoulas, Beran, C, Carbone, Chambers, Cont, Couillard, Czarnecki, Di Matteo, Di Matteo, Di Matteo, Einstein, Ellis, Grech, Grech, Hurst, Jozef Barunik, Kantelhardt, Ladislav Kristoufek, Lillo, Mandelbrot, Mandelbrot, Matos, Menn, Mielniczuk, Peters, Samorodnitsky, Taqqu, Taqqu, Weron, Weron, Zolotarev   +35 more
core   +2 more sources

Amplified singlet oxygen generation in metallated-porphyrin doped conjugated polymer nanoparticles [PDF]

, 2018
We report on the mechanism and efficiencies of singlet oxygen O2(1Δg) generation of nanoparticles (NP) of the conjugated polymer (CP) poly(9,9-dioctylfluorene-alt-benzothiadiazole) (F8BT) doped with platinum octaethylporphyrin (PtOEP) suspended in water.
Chesta, Carlos Alberto, Hernández, Laura, Ibarra, Luis Exequiel, Lorente, Carolina, Macor, Lorena Paola, Palacios, Rodrigo Emiliano, Ponzio, Rodrigo Andrés, Spada, Ramiro Martín   +7 more
core   +2 more sources

Dynamical mean-filed approximation to small-world networks of spiking neurons: From local to global, and/or from regular to random couplings

, 2004
By extending a dynamical mean-field approximation (DMA) previously proposed by the author [H. Hasegawa, Phys. Rev. E {\bf 67}, 41903 (2003)], we have developed a semianalytical theory which takes into account a wide range of couplings in a small-world ...
A. Barabási, A. L. Hodgkin, E. Haskell, H. Risken, Hideo Hasegawa, M. Abeles   +5 more
core   +1 more source

Design of modified plastic surfaces for antimicrobial applications: Impact of ionizing radiation on the physical and mechanical properties of polypropylene [PDF]

, 2013
Surface modification of polypropylene (PP) sheets was carried out by radiation induced graft polymer- ization of hydrophilic functional molecules such as N,N-dimethylacrylamide (DMA) and [2-methacry- loyloxy)ethyl] trimethylammonium chloride, which is a ...
DELATTRE, Jennifer, GUINAULT, Alain, RIQUET, Anne-Marie, VITRAC, Olivier   +3 more
core   +6 more sources

Using a different growth medium greatly improves distinction of Butyrivibrio fibrisolvens and Pseudobutyrivibrio xylanivorans strains by the cellular fatty acids and aldehydes profiles

Acta Agriculturae Slovenica, 2011
A total of 11 ruminal strains currently assigned to Butyrivibrio fibrisolvens and Pseudobutyrivibrio xylanivorans were cultivated in two different media, rumen fluid containing M2 and short-chain fatty acid (SCFA) containing M330, and their cellular ...
Maša ZOREC, Maša VODOVNIK, Romana MARINŠEK LOGAR   +2 more
doaj   +1 more source

Nonlinear dynamics of a cigar-shaped Bose-Einstein condensate coupled with a single cavity mode

, 2008
We investigate the nonlinear dynamics of a combined system which is composed of a cigar-shaped Bose-Einstein condensate and an optical cavity. The two sides couple dispersively.
D. L. Zhou, F. C. Cui, J. M. Zhang, P. Meystre, W. M. Liu   +4 more
core   +1 more source

Large Time-Varying Parameter VARs [PDF]

, 2012
In this paper, we develop methods for estimation and forecasting in large time-varying parameter vector autoregressive models (TVP-VARs). To overcome computational constraints, we draw on ideas from the dynamic model averaging literature which achieve ...
Banbura, Brockwell, Canova, Carriero, Chan, Cogley, Cogley, Dangl, Dimitris Korobilis, Doan, D’Agostino, Fagin, Fruhwirth-Schnatter, Gary Koop, Jazwinsky, Jochmann, Koop, Koop, Koop, Koop, Korobilis, Marcellino, McCormick, Primiceri, Raftery, Stock, West   +26 more
core   +5 more sources

Evaluating energy recovery potential in Murcia's water supply system [PDF]

, 2018
Murcia is the 7th most populated city in Spain. Its water supply system is extensively monitored through a large number of pressure gauges and flow meters.
Castillo Elsitdie, Luis G., García Bermejo, Juan Tomás, Martínez Solano, Daniel, Nevado, Simón, Nowicz, Dorota, Vigueras Rodríguez, Antonio   +5 more
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