Results 21 to 30 of about 146,129 (230)

Microstructure, bending and shear properties of 2.5D shallow cross-linked Cf/Al composites

open access: yesCailiao gongcheng, 2020
2.5D shallow cross-linked Cf/Al composites with volume fraction of 50% were fabricated by vacuum pressure infiltration. The microstructure, bending and shear properties at room and high temperature were studied. The failure mechanism of bending and shear
FENG Jing-peng   +6 more
doaj   +1 more source

Cracks in random brittle solids: From fiber bundles to continuum mechanics [PDF]

open access: yes, 2014
Statistical models are essential to get a better understanding of the role of disorder in brittle disordered solids. Fiber bundle models play a special role as a paradigm, with a very good balance of simplicity and non-trivial effects.
Hansen, Alex   +3 more
core   +5 more sources

Algebraic fiber bundles [PDF]

open access: yesTransactions of the American Mathematical Society, 1981
When X X is a finite simplicial complex and G G is any of a certain class of groups, a classification of G G -principal bundles over X X in terms of projective modules over a ring R ( G , X ) R(G,X) is given.
openaire   +2 more sources

Expansion of retinal nerve fiber bundle narrowing in glaucoma: An adaptive optics scanning laser ophthalmoscopy study

open access: yesAmerican Journal of Ophthalmology Case Reports, 2020
Purpose: To investigate longitudinal changes in the retinal nerve fiber bundle in eyes with primary open angle glaucoma using adaptive optics scanning laser ophthalmoscopy. Methods: A prospective observational case series.
Tomoko Hasegawa   +7 more
doaj   +1 more source

Adaptive Wave-Front Shaping and Beam Focusing through Fiber Bundles for High-Resolution Bioimaging

open access: yesPhotonics, 2021
We demonstrate an adaptive wave-front shaping of optical beams transmitted through fiber bundles as a powerful resource for multisite, high-resolution bioimaging.
Matvey S. Pochechuev   +6 more
doaj   +1 more source

Fiber bundle endocytoscopy

open access: yesBiomedical Optics Express, 2013
Endocytoscopy is an optical biopsy technique which uses a miniaturized camera to capture white light microscopy images through an endoscope. We have developed an alternative design that instead relays images to an external camera via a coherent fiber bundle.
Michael, Hughes   +2 more
openaire   +2 more sources

Hirzebruch $\chi_y$-genera modulo $8$ of fiber bundles for odd integers $y$ [PDF]

open access: yes, 2016
I. Hambleton, A. Korzeniewski and A. Ranicki have proved that the signature of a fiber bundle F↪E→B of closed, connected, compatibly oriented PL manifolds is always multiplicative mod4, i.e. σ(E)≡σ(F)σ(B)mod4. In this paper, we consider the Hirzebruch χy-
Rovi, C., Yokura, S.
core   +1 more source

Equivariant $K$-theory of GKM bundles [PDF]

open access: yes, 2012
Given a fiber bundle of GKM spaces, $\pi\colon M\to B$, we analyze the structure of the equivariant $K$-ring of $M$ as a module over the equivariant $K$-ring of $B$ by translating the fiber bundle, $\pi$, into a fiber bundle of GKM graphs and ...
B. Kostant   +8 more
core   +3 more sources

Failure Modes of New Fiber Post Systems Using Stereomicroscope: An in Vitro Study

open access: yesSulaimani Dental Journal, 2020
Objective: Failure of the glass posts is a major and the main concern of practical dentistry. This study conducted to evaluate the mode of failure among prefabricated bundle fiber posts, prefabricated taper fiber posts, and short fiber-reinforced ...
Hani Mouafaq, Shakhawan Kadir
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

Home - About - Disclaimer - Privacy