Results 81 to 90 of about 135,026 (217)

Mechanical behavior of 'Niagara Rosada' grape berry detachment Comportamento mecânico do destacamento de bagos de uva 'Niagara Rosada'

open access: yesEngenharia Agrícola, 2011
The 'Niagara Rosada' grape is the main Brazilian table grape belonging to the Labrusca family. It develops medium, cylindrical and compact bunches with berries presenting a pinkish skin and a foxy flavor that is valued in the Brazilian market.
Daniel Gomes, Antonio C. de O Ferraz
doaj   +1 more source

Shape operator of an $ (n-1) $-dimensional distribution on an $ n $-dimensional manifold and their classification [PDF]

open access: yesریاضی و جامعه
This paper aims to study of shape operator of an $ (n-1) $-dimensional distribution on an $ n $-dimensional smooth manifold. In this study firstly we state formulae for the shape operator and its symmetric and anti-symmetric components and in ...
Mehran Aminian, Mehran Namjoo
doaj   +1 more source

The curvature object for fundamental-group connection associated with congruence of hypercentred planes

open access: yesДифференциальная геометрия многообразий фигур, 2018
The congruence of hypercentred planes is investigated in n-di­men­sional projective space. The congruence is a holonomic smooth manifold. It is proved that curvature object for the fundamental-group connection in the principal fibre bundle associated ...
A. Vyalova
doaj  

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

open access: yesДифференциальная геометрия многообразий фигур, 2018
Space П of centred m-planes is considered in the projective space . Prin­cipal fiber bundle is arised above it. Two-index structural forms of the principal fiber are included also into structure of basic forms.
O. Belova
doaj  

A cohomological description of connections and curvature over posets

open access: yes, 2006
What remains of a geometrical notion like that of a principal bundle when the base space is not a manifold but a coarse graining of it, like the poset formed by a base for the topology ordered under inclusion? Motivated by finding a geometrical framework
Roberts, John E., Ruzzi, Giuseppe
core  

On some flat connection associated with locally symmetric surface

open access: yesAnnales Universitatis Paedagogicae Cracoviensis: Studia Mathematica, 2014
For every two-dimensional manifold M with locally symmetric linear connection nabla, endowed also with nabla-parallel volume element, we construct a flat connection on some principal fibre bundle P(M,G).
Maria Robaszewska
doaj  

Five-dimensional Kaluza-Klein Theory reformulated

open access: yesRevista Técnica de la Facultad de Ingeniería, 2011
This paper presents a reformulation of the five-dimensional Kaluza-Klein theory. taking into consideration the fact that these five dimensions of space-time are present on the tangent bundle of the Principal Bundle (B). Tb1s reformulation is possible due
Williams Pitter, Mario Choy
doaj  

Study on Ecosystem Service Trade-Offs and Synergies in the Guangdong–Hong Kong–Macao Greater Bay Area Based on Ecosystem Service Bundles

open access: yesLand
In-depth research on the spatial and temporal evolution of ecosystem service trade-offs and synergistic relationships, scientific identification of ecosystem service bundles, and the main factors affecting the spatial differentiation of ecosystem service
Hui Li   +8 more
doaj   +1 more source

Fundamental-group connections and composite clothing for hypercentered planes family in projective space

open access: yesДифференциальная геометрия многообразий фигур, 2018
The article deals with hypercentered planes family in projective space. It is proved that the curvature object for the fundamental-group connection in the principal bundle associated with the family is a tensor.
K. Bashashina
doaj  

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