Results 21 to 30 of about 368,599 (267)

Polar shapelets [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2005
The shapelets method for image analysis is based upon the decomposition of localised objects into a series of orthogonal components with convenient mathematical properties. We extend the "Cartesian shapelet" formalism from earlier work, and construct "polar shapelet" basis functions that separate an image into components with explicit rotational ...
Massey, R., Refregier, A.
openaire   +3 more sources

Multi-Angle Polarization Index System for Pollen Type Bioaerosol Recognition

open access: yesFrontiers in Physics, 2022
In this work, we propose a high-throughput online identification method of bioaerosols based on multi-angle polarization index system (MAPIS). In the study, four categories and 10 subclasses of aerosol samples from biological and non-biological sources ...
Qizhi Xu   +8 more
doaj   +1 more source

Liquid crystal based spectral control for applications in optical communication and metrology

open access: yesResults in Optics, 2020
The molecules of nematic liquid crystals (LCs), aligned in one average direction, constitute a birefringent medium. The molecules in nematic LCs of positive anisotropy (ne>no) get aligned in the direction of applied electric field due to the induced ...
Gyaprasad, Bhaskar Kanseri
doaj   +1 more source

Non-Markovian dynamics control of spin-1/2 system interacting with magnets

open access: yesNew Journal of Physics, 2021
The unavoidable interaction of an open quantum system with its surrounding environment may follow non-Markovian dynamics behavior, which causes its memory effects to play a key role in many quantum technologies.
Ying-Jie Zhang   +5 more
doaj   +1 more source

Scientific Polarization [PDF]

open access: yesSSRN Electronic Journal, 2017
22 pages, 5 figures, author final ...
Cailin O’Connor, James Owen Weatherall
openaire   +4 more sources

In-situ Detection Method for Microplastics in Water by Polarized Light Scattering

open access: yesFrontiers in Marine Science, 2021
Microplastics (MPs) have become the widespread contaminants, which raises concerns on their ecological hazards. In-situ detection of MP in water bodies is essential for clear assessment of the ecological risks of MPs.
Tong Liu   +11 more
doaj   +1 more source

Work costs and operating regimes for different manners of system-reservoir interactions via collision model

open access: yesNew Journal of Physics, 2022
In this work, we study effects of different types of system-reservoir interactions on work costs and operating regimes of thermal machines by considering a quantum system consisting of two subsystems embedded in both independent and common reservoirs ...
Ying Wang   +3 more
doaj   +1 more source

Polarized cells, polar actions

open access: yesJournal of Bacteriology, 1993
The recognition of polar bacterial organization is just emerging. The examples of polar localization given here are from a variety of bacterial species and concern a disparate array of cellular functions. A number of well-characterized instances of polar localization of bacterial proteins, including the chemoreceptor complex in both C. crescentus and E.
J R, Maddock, M R, Alley, L, Shapiro
openaire   +3 more sources

Neuronal Polarity [PDF]

open access: yesCold Spring Harbor Perspectives in Biology, 2009
The assembly of functional neuronal networks in the developing animal relies on the polarization of neurons, i.e., the formation of a single axon and multiple dendrites. Breaking the symmetry of neurons depends on cytoskeletal rearrangements. In particular, axon specification requires local dynamic instability of actin and stabilization of microtubules.
Tahirovic, S., Bradke, F.
openaire   +3 more sources

Political polarization [PDF]

open access: yesProceedings of the National Academy of Sciences, 2007
Failures of government policies often provoke opposite reactions from citizens; some call for a reversal of the policy, whereas others favor its continuation in stronger form. We offer an explanation of such polarization, based on a natural bimodality of preferences in political and economic contexts and consistent with Bayesian rationality.
Dixit, Avinash, Weibull, Jörgen
openaire   +5 more sources

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