Results 111 to 120 of about 4,541,716 (292)
Coherence vortices by binary pinholes
NanophotonicsSingularity in a two-point complex coherence function, known as coherence vortices, represents zero visibility with a helical phase structure. In this paper, we introduce a novel technique to generate the coherence vortices of different topological ...
Gautam Akanksha +2 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Resonant standing waves generate large‐area lattices of liquid‐crystal topological defects that are permanently encoded into polymer coatings by photopolymerization. The preserved director architecture produces thermally reconfigurable surface topographies while maintaining programmable optical functionality, demonstrating a scalable strategy for ...
Jacques A. Peixoto +6 more
wiley +1 more source
Vortices in trapped bose - Einstein condensates [PDF]
, 2000 In this thesis we solve the Gross-Pitaevskii equation numerically in order to model the response of trapped Bose-Einstein condensed gases to perturbations by electromagnetic fields.
Jackson, Brian, Jackson, B.
core
Advanced Functional Materials, EarlyView.Melanin content directly controls fungal spore mechanical properties, with pigmented spores achieving rupture forces two orders of magnitude higher than hyaline spores. Environmental stress drives this quantity‐quality tradeoff; stressed species invest energy in melanin‐reinforced, mechanically superior thick‐walled, super‐hydrophobic spores, while ...
Atul Agrawal, Steven E. Naleway
wiley +1 more source
Clustering of point vortices in a periodic box [PDF]
PAMM, 2007 AbstractMotions of N point vortices with square periodic boundary conditions are studied numerically, where N is order of 100. The clustering property is examined by computing the L function familiar in the field of spatial ecology. The case of a positive value of L corresponds to the state of clustering and the Onsager's negative temperature.
openaire +2 more sources
Advanced Functional Materials, EarlyView.Lipoprotein‐mimicking nanoparticles (SL‐NPs), comprising Fe3O4@SiO2 cores coated with liposomal bilayers, selectively capture lipoproteins through protein corona formation. The resulting SL‐NP‐lipoprotein complexes can be removed by low‐speed centrifugation, thereby enhancing the purity of small extracellular vesicles (sEVs) isolated from human serum ...
Man‐Di Wang +7 more
wiley +1 more source
Two-dimensional para-, ortho-, and bi-magnetoexcitons interacting with quantum point vortices
Moldavian Journal of the Physical Sciences, 2018 The theory of two-dimensional (2D) magnetoexcitons was enlarged taking into account the electron–hole (e–h) exchange Coulomb interaction, which appears when the conduction and valence electrons belong partially to both bands.
Moscalenco, Sveatoslav +5 more
doaj
Vortex Avalanches and Collective Motion in Neutron Stars
The Astrophysical JournalWe simulate the dynamics of about 600 quantum vortices in a spinning-down cylindrical container using a Gross–Pitaevskii model. For the first time, we find convincing spatial-temporal evidence of avalanching behavior resulting from vortex depinning and ...
I-Kang Liu +3 more
doaj +1 more source
AIP Advances, 2019 Sideslip-induced asymmetrical vortices are critical to the performance of canard-configuration aircraft. In this paper, a canard-configuration model was found to roll around a nonzero trim angle in a free-to-roll experiment, indicating a loss of lateral ...
Yizhang Dong +3 more
doaj +1 more source