Results 31 to 40 of about 535,629 (194)

Field Theoretic Description of Ultrarelativistic Electron-Positron Plasmas [PDF]

, 2008
Ultrarelativistic electron-positron plasmas can be produced in high-intensity laser fields and play a role in various astrophysical situations. Their properties can be calculated using QED at finite temperature.
Beskin, V. S., de Groot, S. R., Kapusta, J. I., Klimov, V. V., Klimov, V. V., Le Bellac, M., Lifshitz, E. M., Markus H. Thoma, Melrose, D. B., Müller, B., Raffelt, G., Reif, F., Silin, V. P., Silin, V. P., Thoma, M. H., Thoma, M. H., Tsytovich, V. N., Tsytovich, V. N., Zel’dovich, Y. B., Zel’dovich, Y. B.   +19 more
core   +3 more sources

Optical dispersions through intracellular inhomogeneities

Physical Review Research, 2023
The transport of intensity equation (TIE) exhibits a noninterferometric correlation between the intensity and phase variations of intermediate fields (e.g., light and electrons) in biological imaging. Previous TIE formulations have generally assumed free-
Masaki Watabe, Yasuhiro Hirano, Atsuko Iwane, Osamu Matoba, Koichi Takahashi   +4 more
doaj   +1 more source

Two-dimensional-one-dimensional splitting scheme for the numerical solution of problems of transport of multicomponent suspensions using θ coordinates [PDF]

E3S Web of Conferences, 2023
The work considers the spatial-three-dimensional problem of suspension transport, which takes into account many parameters and processes (multicomponent fractional composition of suspension, particle sedimentation rate, suspension distribution, intensity
Sukhinov Alexander, Sidoryakina Valentina   +1 more
doaj   +1 more source

Transport of intensity equation based photon-counting phase imaging

OSA Continuum, 2020
In low light conditions, such as in astronomy and non-invasive bio-imaging applications, the imaging performance is mostly degraded due to noise. In this paper, we demonstrate a transport of intensity equation based technique that uses photon-counting phase imaging.
Alok K. Gupta, Naveen K. Nishchal, Partha P. Banerjee   +2 more
openaire   +1 more source

Closed-Form Solution of Radial Transport of Tracers in Porous Media Influenced by Linear Drift

Energies, 2018
A new closed-form analytical solution to the radial transport of tracers in porous media under the influence of linear drift is presented. Specifically, the transport of tracers under convection–diffusion-dominated flow is considered.
Lateef T. Akanji, Gabriel K. Falade
doaj   +1 more source

On the Derivation of Vector Radiative Transfer Equation for Polarized Radiative Transport in Graded Index Media

, 2011
Light transport in graded index media follows a curved trajectory determined by the Fermat's principle. Besides the effect of variation of the refractive index on the transport of radiative intensity, the curved ray trajectory will induce geometrical ...
Arridge, Ben Abdallah, Ben Abdallah, Chandrasekhar, Deiveegan, Goldstein, Goloub, Haferman, Hebden, Huang, J.M. Zhao, J.Y. Tan, Jones, Karavstov, Klose, L.H. Liu, Lau, Lemonnier, Liu, Liu, Liu, Liu, Liu, Liu, Modest, Pomraning, Qiao, Sakami, Siegel, Stavroudis, Tsang, Xia, Zhang, Zhao, Zhao   +34 more
core   +1 more source

The Influence of Electric Field Intensity and Particle Length on the Electrokinetic Transport of Cylindrical Particles Passing through Nanopore

Micromachines, 2020
The electric transport of nanoparticles passing through nanopores leads to a change in the ion current, which is essential for the detection technology of DNA sequencing and protein determination.
Liuyong Shi, Xiaohan He, Jian Ge, Teng Zhou, Ting Li, Sang Woo Joo   +5 more
doaj   +1 more source

Interplanetary particle transport simulation for warning system for aviation exposure to solar energetic particles

, 2015
Solar energetic particles (SEPs) are one of the extreme space weather phenomena. A huge SEP event increases the radiation dose received by aircrews, who should be warned of such events as early as possible.
Kataoka, Ryuho, Kubo, Yûki, Sato, Tatsuhiko   +2 more
core   +1 more source

Fluctuation-driven directed transport in the presence of Levy flights

, 2007
Numerical evidence of directed transport driven by symmetric Levy noise in time-independent ratchet potentials in the absence of an external tilting force is presented.
A.V. Chechkin, Bouchaud, Brockmann, Brockmann, Brockmann, Buldyrev, Buldyrev, Carati, Chechkin, Chechkin, Chechkin, Chechkin, Chechkin, Chechkin, Chechkin, D. del-Castillo-Negrete, del-Castillo-Negrete, del-Castillo-Negrete, del-Castillo-Negrete, del-Castillo-Negrete, Ditlevsen, Ditlevsen, Ditlevsen, Dubkov, Dubkov, Dybiec, Dybiec, Feynman, Gnedenko, Gonchar, Imkeller, Jespersen, Jha, Kassam, Katori, Klafter, Levandowsky, Lomholt, Lévy, Mandelbrot, Mantegna, Mateos, Metzler, Nikias, Patriarca, Peng, Phillips, Podlubny, Reimann, Rosa, Samorodnitsky, Samorodnitsky, Samorodnitsky, Segev, Shlesinger, Solomon, V.Yu. Gonchar, Viswanathan, Vlad, Wegman   +59 more
core   +1 more source

Transport-of-Intensity Equation for Real-Time Tomographic Experiments: Projection or Slices?

IEEE Access
In this manuscript, we present a computational imaging discussion on the classical Paganin approach for recovering the phase of X-ray tomographic measurements using the Transport-of-Intensity Equation (TIE) with a single-material parameter.
Eduardo X. Miqueles, Paola C. Ferraz, Goran Lovric, David M. Paganin   +3 more
doaj   +1 more source