Results 21 to 30 of about 1,830,967 (336)

Simple microfluidic stagnation point flow geometries [PDF]

open access: yesBiomicrofluidics, 2016
A geometrically simple flow cell is proposed to generate different types of stagnation flows, using a separation flow and small variations of the geometric parameters. Flows with high local deformation rates can be changed from purely rotational, over simple shear flow, to extensional flow in a region surrounding a stagnation point. Computational fluid
Dockx, Greet   +6 more
openaire   +4 more sources

Automatic Geometry Generation from Point Clouds for BIM

open access: yesRemote Sensing, 2015
The need for better 3D documentation of the built environment has come to the fore in recent years, led primarily by city modelling at the large scale and Building Information Modelling (BIM) at the smaller scale.
Charles Thomson, Jan Boehm
doaj   +1 more source

Dynamic Point Cloud Compression Based on Projections, Surface Reconstruction and Video Compression

open access: yesSensors, 2021
In this paper we will present a new dynamic point cloud compression based on different projection types and bit depth, combined with the surface reconstruction algorithm and video compression for obtained geometry and texture maps. Texture maps have been
Emil Dumic   +2 more
doaj   +1 more source

Matrix geometries emergent from a point [PDF]

open access: yesReviews in Mathematical Physics, 2014
We describe a categorical approach to finite noncommutative geometries. Objects in the category are spectral triples, rather than unitary equivalence classes as in other approaches. This enables us to treat fluctuations of the metric and unitary equivalences on the same footing, as representatives of particular morphisms in this category. We then show
D'ANDREA, FRANCESCO   +2 more
openaire   +4 more sources

Point-Like Structure in Strings and Non-Commutative Geometry [PDF]

open access: yes, 1996
Dynamics of a free point particle on a multi world-line is presented and shown to reduce to that of a bosonic string theory at the appropriate limit.
Ardalan, Farhad, Fatollahi, Amir H.
core   +4 more sources

On preferred point geometry in statistics [PDF]

open access: yesJournal of Statistical Planning and Inference, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Critchley, F., Marriott, P., Salmon, M.
openaire   +3 more sources

Assigning Quantum-Mechanical Initial Conditions to Cosmological Perturbations [PDF]

open access: yes, 2003
Quantum-mechanical initial conditions for the fluctuations of the geometry can be assigned in excess of a given physical wavelength. The two-point functions of the scalar and tensor modes of the geometry will then inherit corrections depending on which ...
Giovannini, Massimo
core   +1 more source

Geometry of Quantum Projective Spaces [PDF]

open access: yes, 2012
In recent years, several quantizations of real manifolds have been studied, in particular from the point of view of Connes' noncommutative geometry. Less is known for complex noncommutative spaces.
D'Andrea, Francesco, Landi, Giovanni
core   +1 more source

The influence of drill point geometry on tool life

open access: yesTehnički Glasnik, 2018
Drilling is a cutting process that uses a rotary cutting tool to cut a cylindrical hole in a solid material. During machining, drill bits are exposed to rapid wear at high temperature.
Zlatko Botak   +3 more
doaj   +1 more source

ASSESSING THE ALIGNMENT BETWEEN GEOMETRY AND COLORS IN TLS COLORED POINT CLOUDS [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
The integration of the color information from RGB cameras with the point cloud geometry is used in numerous applications. However, little attention has been paid on errors that occur when aligning colors to points in terrestrial laser scanning (TLS ...
Z. Wang, M. Varga, T. Medić, A. Wieser
doaj   +1 more source

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