Results 81 to 90 of about 244,959 (287)

Niphargus species (Crustacea: Amphipoda) of the Kvarner-Velebit Islands (NW Adriatic, Yugoslavia)

open access: yesActa Biologica Slovenica, 1989
The morphology of the local populations of Niphargus aquilex Schioedte, N. longicaudatus (Costa), N. wolfi Schellenberg. N. steueri liburnicus ssp. n., N. arbiter G. Karaman, and N.
Gordan S. Karaman, Boris Sket
doaj   +1 more source

BF-tree

open access: yesProceedings of the VLDB Endowment, 2014
The increasing volume of time-based generated data and the shift in storage technologies suggest that we might need to reconsider indexing. Several workloads - like social and service monitoring - often include attributes with implicit clustering because of their time-dependent nature.
Manos Athanassoulis, Anastasia Ailamaki
openaire   +3 more sources

Quantifying Subsurface Weak in‐Plane Magnetization of Mixed Phase BiFeO3 by Scanning Nitrogen Vacancy Magnetometry

open access: yesAdvanced Functional Materials, EarlyView.
We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang   +14 more
wiley   +1 more source

Ricciocarpos natans (L.) Corda - novoodkrita vrsta jetrenjaka v flori Slovenije

open access: yesNatura Sloveniae, 2001
V opuščeni gramoznici zahodno od zaselka Mali Bakovci v Prekmurju je bil prvič na območju Slovenije odkrit plavajoči jetrenjak Ricciocarpos natans (L.) Corda.
Valerija Babij, Nejc Jogan
doaj   +1 more source

Glissile Interphase Boundaries Enable Collective Phase Switching in Epitaxial Polar Oxides

open access: yesAdvanced Functional Materials, EarlyView.
A triple point is identified in the phase diagram of low‐symmetry epitaxial BiFeO3 thin film along with an extended regime of phase competition associated with a flattened energy landscape. The electromechanical response is shown to be governed by correlated interphase‐boundary motion, including scale‐free avalanche dynamics characteristic of systems ...
Mohammad Moein Seyfouri   +11 more
wiley   +1 more source

Moments of inertia, nucleon axial-vector coupling, the {\bf 8}, {\bf 10}, $\bar{\bf 10}$ and ${\bf 27}_{3/2}$ mass spectrums and the higher SU(3)_f representation mass splittings in the Skyrme model

open access: yes, 2004
The broad importance of recent experimental discovery of pentaquarks require more theoretical insight into the structure of higher representation multiplets.
Trampetic, J.   +2 more
core   +1 more source

Fractonic Chern-Simons and BF theories

open access: yesPhysical Review Research, 2020
Fracton order is an intriguing new type of order which shares many common features with topological order, such as topology-dependent ground-state degeneracies, and excitations with mutual statistics.
Yizhi You   +3 more
doaj   +1 more source

Cluster Algebras of Type A $_{\bf{2}}^{\bf {(1)}}$ [PDF]

open access: yesAlgebras and Representation Theory, 2011
In this paper we study cluster algebras \(\mathcal{A}\) of type \(A_2^{(1)}\). We solve the recurrence relations among the cluster variables (which form a T-system of type \(A_2^{(1)}\)). We solve the recurrence relations among the coefficients of \(\mathcal{A}\) (which form a Y-system of type \(A_2^{(1)}\)).
openaire   +1 more source

Strong Lead‐Free Bioinspired Piezoceramics for Durable Energy Transducers

open access: yesAdvanced Functional Materials, EarlyView.
We fabricated brick‐and‐mortar lead‐free piezoceramics with Bi0.5Na0.5TiO3 monocrystal platelets as bricks and amorphous silica as mortar. The alignment of the bricks and the presence of the amorphous silica led to anisotropic residual stresses. These residual stresses increase the samples toughness, strength and durability while the brick alignment ...
Ruxue Yang   +12 more
wiley   +1 more source

Solution‐Processed Mn‐Doped 2d Perovskite Wavelength Shifters for Noble‐Liquid Photon Detection

open access: yesAdvanced Functional Materials, EarlyView.
Solution‐processed Mn2+‐doped PEA2PbBr4 two‐dimensional perovskite films are demonstrated as large‐area wavelength shifters for noble‐liquid photon detectors. Mn2+ incorporation introduces a broad emission band at ∼620 nm with a large Stokes shift, suppressing self‐absorption and matching SiPM sensitivity.
Elisabetta Colantoni   +6 more
wiley   +1 more source

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