Results 11 to 20 of about 170,559 (114)

Crystal structure and Hirshfeld surface analysis of triazatriborinotris[1,3,2]benzodiazaborole acetone disolvate

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2023
The title compound, alternatively known as benzodiazaborole trimer, C18H15B3N6·2C3H6O, at 100 K crystallizes in the triclinic system, space group P\overline{1}.
Cole Streeter   +2 more
doaj   +1 more source

The Grassmann-like manifold of centered planes when a surface is described by the centre

open access: yesДифференциальная геометрия многообразий фигур, 2021
We continue to study of the Grassmann-like manifold of -centered planes. A special case is considered when the center de­scribes an -dimensional surface . We will denote this mani­fold by . An analogue of the strong Norden normalization of the manifold
O.O. Belova
doaj   +1 more source

Centered planes in the projective connection space

open access: yesДифференциальная геометрия многообразий фигур, 2020
The space of centered planes is considered in the Cartan projec­ti­ve connection space . The space is important because it has con­nec­tion with the Grassmann manifold, which plays an important role in geometry and topology, since it is the basic space ...
O.O. Belova
doaj   +1 more source

Three-dimensional computed tomographic angular measurements of the canine tibia using a bone-centered coordinate system

open access: yesFrontiers in Veterinary Science, 2023
IntroductionCanine tibial alignment is determined by two-dimensional angular measurements, and tibial torsion is challenging. Aim of the study was the development and evaluation of a CT technique to measure canine tibial varus and torsion angles ...
Andreas Brühschwein   +4 more
doaj   +1 more source

Glued linear connection on surface of the projective space

open access: yesДифференциальная геометрия многообразий фигур, 2020
We consider a surface as a variety of centered planes in a multidi­mensional projective space. A fiber bundle of the linear coframes appears over this manifold. It is important to emphasize the fiber bundle is not the principal bundle.
K.V. Bashashina
doaj   +1 more source

About an analogue of Neifeld’s connection on the space of centred planes with one-index basic-fibre forms

open access: yesДифференциальная геометрия многообразий фигур, 2019
This research is realized by Cartan — Laptev method (with prolonga­tions and scopes, moving frame and exterior forms). In this paper we con­sider a space П of centered m-planes (a space of all centered planes of the dimension m). This space is considered
Е. Belova, O. Belova
doaj   +1 more source

Degenerate manifolds, helimagnets, and multi-Q chiral phases in the classical Heisenberg antiferromagnet on the face-centered-cubic lattice

open access: yesPhysical Review Research, 2020
We present a detailed study of the ground-state phase diagram of the classical frustrated Heisenberg model on the face-centered-cubic lattice. By considering exchange interactions to third nearest neighbors, we find commensurate, helimagnetic, as well as
Péter Balla, Yasir Iqbal, Karlo Penc
doaj   +1 more source

The composition equipment for congruence of hypercentred planes

open access: yesДифференциальная геометрия многообразий фигур, 2019
In n-dimensional projective space Pn a manifold , i. e., a cong­ruence of hypercentered planes , is considered. By a hypercentered planе we mean m-dimensional plane with a (m – 1)-dimensional hy­perplane , distinguished in it.
A. V. Vyalova
doaj   +1 more source

Induced connections of two types on a surface of an affine space

open access: yesДифференциальная геометрия многообразий фигур, 2019
In the affine space the fundamental-group connection in the bundle associated with a surface as a manifold of tangent planes is investigated. The principal bundle contains a quotient bundle of tangent frames, the typical fiber of which is a linear group ...
A. Shults
doaj   +1 more source

Fast and forceful: Modulation of response activation induced by shifts of perceived depth in virtual 3D space

open access: yesFrontiers in Psychology, 2016
Reaction time (RT) can strongly be influenced by a number of stimulus properties. For instance, there was converging evidence that perceived size rather than physical (i.e. retinal) size constitutes a major determinant of RT.
Thorsten Plewan, Gerhard Rinkenauer
doaj   +1 more source

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