Results 21 to 30 of about 228,651 (326)

Detection of Direct Sun Glare on Drivers from Point Clouds

open access: yesRemote Sensing, 2022
Sunlight conditions can reduce drivers’ visibility, which is a safety concern on road networks. This research introduces a method to study sun glare incidence in road environments.
Silvia María González-Collazo   +3 more
doaj   +1 more source

Echocardiographic left ventricular geometry profiles for prediction of stroke, coronary heart disease and all-cause mortality in the Chinese community: a rural cohort population study

open access: yesBMC Cardiovascular Disorders, 2021
Background The utility of echocardiographic left ventricular (LV) geometry in the prediction of stroke/coronary heart disease (CHD) and all-cause mortality is not well characterized.
Tan Li   +4 more
doaj   +1 more source

Numerical Investigation into a New Method of Non-Axisymmetric End Wall Contouring for Axial Compressors

open access: yesEnergies, 2022
To deal with corner separation in high-load axial compressors, this paper proposes a new end wall contouring method aimed at controlling the end wall secondary flow in more than one local area, generating a geometry with fewer control variables that is ...
Fuhao You   +4 more
doaj   +1 more source

Implicit Characterizations of Smooth Incidence Geometries [PDF]

open access: yesGeometriae Dedicata, 2000
Erworben im Rahmen der Schweizer Nationallizenzen (http://www.nationallizenzen.ch)
Richard Bödi, Stefan Immervoll
openaire   +3 more sources

AN INCIDENCE CONJECTURE OF BOURGAIN OVER FIELDS OF POSITIVE CHARACTERISTIC

open access: yesForum of Mathematics, Sigma, 2016
In this note we generalize a recent theorem of Guth and Katz on incidences between points and lines in 3-space from characteristic 0 to characteristic $p ...
JORDAN S. ELLENBERG, MÁRTON HABLICSEK
doaj   +1 more source

Numerical Investigation of External Electromagnetic Field Coupling to Coplanar Waveguide [PDF]

open access: yesInternational Journal of Industrial Electronics, Control and Optimization, 2020
In this paper, for the first time, effects of external electromagnetic fields on a coplanar waveguide (CPW) are numerically studied by means of the method of finite elements. Two CPW lines with different geometry and dielectric substrate permittivity are
Hamideh Dashti
doaj   +1 more source

Wind Direction Retrieval Using Spaceborne GNSS-R in Nonspecular Geometry

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
A wind direction retrieval algorithm using spaceborne global navigation satellite system reflectometry (GNSS-R) in nonspecular geometry is presented. This article first focuses on investigating the influence of wind direction on the scattering strength ...
Guodong Zhang   +3 more
doaj   +1 more source

Point-curve incidences in the complex plane [PDF]

open access: yes, 2017
We prove an incidence theorem for points and curves in the complex plane. Given a set of $m$ points in ${\mathbb R}^2$ and a set of $n$ curves with $k$ degrees of freedom, Pach and Sharir proved that the number of point-curve incidences is $O\big(m ...
Sheffer, Adam   +2 more
core   +2 more sources

Engineering Chemisorption of Fe4 Single‐Molecule Magnets on Gold

open access: yesAdvanced Materials Interfaces, 2021
Gaining control over the grafting geometry is critically important for any application of surface‐supported single‐molecule magnets (SMMs) in data storage, spintronics, and quantum information science.
Lorenzo Poggini   +21 more
doaj   +1 more source

THE FULFILLED EUCLIDEAN PLANE [PDF]

open access: yes, 2009
The fulfilled euclidean plane is the real projective plane, completed with the infinite point of its infinite line denoted new incidence structure. This is a structure with neighbouring elements, in which the unicity of the line through two distinct ...
Vasiu, Adrian, Vasiu, Angela
core   +1 more source

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