Results 11 to 20 of about 2,873,064 (342)

Enclosing Depth and Other Depth Measures [PDF]

open access: yesCombinatorica, 2023
AbstractWe study families of depth measures defined by natural sets of axioms. We show that any such depth measure is a constant factor approximation of Tukey depth. We further investigate the dimensions of depth regions, showing that the Cascade conjecture, introduced by Kalai for Tverberg depth, holds for all depth measures which satisfy our most ...
openaire   +7 more sources

Correlation of the epidural space measured intraoperatively and estimated by MRI or US: an observational study [PDF]

open access: yesRevista Brasileira de Anestesiologia, 2020
Background and objectives: To assess the agreement between the epidural depth measured from the surgical site with the epidural depths estimated with magnetic resonance imaging (MRI) and ultrasound scanning.
Mehmet Cantürk   +2 more
doaj   +5 more sources

Choroidal Thickness in Different Degrees of Myopia Measured by Enhanced Depth Imaging Mode Optical Coherence Tomography [PDF]

open access: yesInternational Journal of Medical Arts, 2022
Background: Choroidal thickness [CT] is associated with many ocular conditions. Different generations of optical coherence tomography [OCT] are important for clinical application.Objective: This study aimed to evaluate the effect of myopia on CT by the ...
Esraa Abd-Elkhalek   +3 more
doaj   +1 more source

A Surface Texture Prediction Model Based on RIOHTrack Asphalt Pavement Testing Data

open access: yesApplied Sciences, 2022
The surface texture of asphalt pavement is of enormous importance to skid resistance. To investigate the degradation tendency of surface texture related to the skid resistance, four years of sensor measured texture depth (SMTD) panel data measured from ...
Wei Huang   +3 more
doaj   +1 more source

Factors Influencing the Accuracy of Shallow Snow Depth Measured Using UAV-Based Photogrammetry

open access: yesRemote Sensing, 2021
Factors influencing the accuracy of UAV-photogrammetry-based snow depth distribution maps were investigated. First, UAV-based surveys were performed on the 0.04 km2 snow-covered study site in South Korea for 37 times over the period of 13 days under 16 ...
Sangku Lee   +3 more
doaj   +1 more source

Plastic Classification Using Optical Parameter Features Measured with the TMF8801 Direct Time-of-Flight Depth Sensor

open access: yesSensors, 2023
We demonstrate a methodology for non-contact classification of five different plastic types using an inexpensive direct time-of-flight (ToF) sensor, the AMS TMF8801, designed for consumer electronics.
Cienna N. Becker, Lucas J. Koerner
doaj   +1 more source

On Combinatorial Depth Measures [PDF]

open access: yesInternational Journal of Computational Geometry & Applications, 2018
Given a set [Formula: see text] of points and a point [Formula: see text] in the plane, we define a function [Formula: see text] that provides a combinatorial characterization of the multiset of values [Formula: see text], where for each [Formula: see text], [Formula: see text] is the open half-plane determined by [Formula: see text] and [Formula: see
Stephane Durocher   +4 more
openaire   +2 more sources

A study on relationships between measured crustal stresses and depth based on spherical shell model

open access: yes矿业科学学报, 2022
Due to the exploitation of mineral resources in the deep underground space, it is more and more important to study the variation trend of deep in-situ stress field. In recent years the researches have updated many in-situ stress data.
Liu Bingquan   +4 more
doaj   +1 more source

Ground-based GPS Used in the Snow Depth Survey of Greenland [PDF]

open access: yesJournal of Geodesy and Geoinformation Science, 2021
Snow cover is one of the important components of land cover, and it is necessary to accurately monitor the depth and coverage of snow cover. Using the GPS signal receiver data and the basic principle of snow depth detection based on GPS-MR technology ...
Shuangcheng ZHANG,Meiling ZHOU,Yajie WANG,Ning LIU,Qi LIU,Jilun PENG
doaj   +1 more source

The oculocardiac reflex and depth of anesthesia measured by brain wave

open access: yesBMC Anesthesiology, 2019
Background The oculocardiac reflex (OCR), bradycardia that occurs during strabismus surgery is a type of trigemino-cardiac reflex (TCR) is blocked by anticholinergics and enhanced by opioids and dexmedetomidine.
Robert W. Arnold   +3 more
doaj   +1 more source

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