Results 41 to 50 of about 146,915 (245)

Numerical schemes for kinetic equations in the diffusion and anomalous diffusion limits. Part I: the case of heavy-tailed equilibrium [PDF]

, 2015
In this work, we propose some numerical schemes for linear kinetic equations in the diffusion and anomalous diffusion limit. When the equilibrium distribution function is a Maxwellian distribution, it is well known that for an appropriate time scale, the
Crouseilles, Nicolas, Hivert, Hélène, Lemou, Mohammed   +2 more
core   +2 more sources

Paradoxes of Subdiffusive Infiltration in Disordered Systems

, 2010
Infiltration of diffusing particles from one material to another where the diffusion mechanism is either normal or anomalous is a widely observed phenomena.
Eli Barkai, I. Podlubny, Nickolay Korabel, S. Redner   +3 more
core   +1 more source

Coexistence of absolute negative mobility and anomalous diffusion [PDF]

, 2019
Using extensive numerical studies we demonstrate that absolute negative mobility of a Brownian particle (i.e. the net motion into the direction opposite to a constant biasing force acting around zero bias) does coexist with anomalous diffusion.
Hänggi, P., Spiechowicz, J., Łuczka, J.   +2 more
core   +3 more sources

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

Diffusion on random site percolation clusters. Theory and NMR microscopy experiments with model objects

, 2001
Quasi two-dimensional random site percolation model objects were fabricate based on computer generated templates. Samples consisting of two compartments, a reservoir of H$_2$O gel attached to a percolation model object which was initially filled with D ...
A. Kapitulnik, A. Klemm, A. Klemm, A. Klemm, Andreas Klemm, B. M. Fung, D. C. Hong, D. O. Kuethe, E. Barkai, E. Barkai, F. Amblard, F. Amblard, F. Klammler, H.-P. Müller, H.-P. Müller, J. G. Zabolitzky, J. Klafter, J. Klafter, J. Klafter, J.-P. Bouchaud, M. Holz, M. J. Lizak, N. Jan, O. J. Poole, P. Levitz, P. M. Adler, R. Kimmich, R. Kimmich, R. Kimmich, R. Metzler, R. Metzler, R. Metzler, R. Metzler, R. Mills, R. Orbach, R. W. Mair, Rainer Kimmich, Ralf Metzler, S. Alexander, S. Havlin, V. Pasquier, W. Heink, W. R. Schneider   +42 more
core   +1 more source

Smarter Sensors Through Machine Learning: Historical Insights and Emerging Trends across Sensor Technologies

Advanced Functional Materials, EarlyView.
This review highlights how machine learning (ML) algorithms are employed to enhance sensor performance, focusing on gas and physical sensors such as haptic and strain devices. By addressing current bottlenecks and enabling simultaneous improvement of multiple metrics, these approaches pave the way toward next‐generation, real‐world sensor applications.
Kichul Lee, Osman Gul, Yeongjae Kwon, Jaeseok Jeong, Seokjoo Cho, Jihyeon Ahn, Jehee Yu, Cheolmin Kim, Donho Lee, Hyeonseok Han, Byeongju Lee, Jungrak Choi, Ji‐Hwan Ha, Yongrok Jeong, Kyungnam Kang, Ali Javey, Junseong Ahn, Inkyu Park   +17 more
wiley   +1 more source

Anomalous diffusion and generalized Sparre-Andersen scaling

, 2009
We are discussing long-time, scaling limit for the anomalous diffusion composed of the subordinated L\'evy-Wiener process. The limiting anomalous diffusion is in general non-Markov, even in the regime, where ensemble averages of a mean-square ...
B. Dybiec, Chechkin A. V., Dybiec B., Dybiec B., Dybiec B. Gudowska-Nowak E., E. Gudowska-Nowak, Feller W., Goel N. S., Metzler R., Metzler R., Metzler R., Podlubny I., Redner S., Shlesinger M. F., Sokolov I., Sparre Andersen E., Sparre Andersen E., van Kampen N. G.   +17 more
core   +1 more source

Long Wavelength Anomalous Diffusion Mode in the 2D XY Dipole Magnet [PDF]

, 1996
In 2D XY ferromagnet the dipole force induces a strong interaction between spin-waves in the long-wavelength limit. The major effect of this interaction is the transformation of a propagating spin-wave into a diffusion mode.
A. A. Abrikosov, A. Aharony, A. B. Migdal, A. Kashuba, A. Kashuba, A. Kashuba, A. Kashuba, A. Stern, A. V. Chubukov, A. Ya. Blank, Ar. Abanov, B. L. Altshuler, C. De Dominicis, D. V. Khveshchenko, E. Frey, E. I. Kats, G. Grüner, H. C. Siegmann, H. K. Janssen, J. V. Jose, J. Zinn-Justin, K. Kawasaki, L. D. Landau, L. P. Kadanoff, N. D. Mermin, P. C. Hohenberg, P. C. Martin, R. A. Pelcovits, R. Pfandzelter, R. Zeyher, S. V. Maleev, V. L. Berezinsky, V. L. Pokrovsky, Z. Q. Qiu   +33 more
core   +2 more sources

Designing Asymmetric Memristive Behavior in Proton Mixed Conductors for Neuromorphic Applications

Advanced Functional Materials, EarlyView.
Protonic devices that couple ionic and electronic transport are demonstrated as bioinspired neuromorphic elements. The devices exhibit rubber‐like asymmetric memristive behavior with slow voltage‐driven conductance increase and rapid relaxation, enabling simplified read–write operation.
Nada H. A. Besisa, Masaki Tsuji, Yoshihiro Furue, Yifan Geng, Satya P. Pati, Satoshi Hamasuna, Takeaki Yajima   +6 more
wiley   +1 more source

Anomalous diffusion. A competition between the very large jumps in physical and operational times

, 2010
In this paper we analyze a coupling between the very large jumps in physical and operational times as applied to anomalous diffusion. The approach is based on subordination of a skewed Levy-stable process by its inverse to get two types of operational ...
Stanislavsky, Aleksander, Weron, Karina
core   +1 more source