Results 11 to 20 of about 67,008 (260)

Computing the Eccentricity Distribution of Large Graphs

open access: yesAlgorithms, 2013
The eccentricity of a node in a graph is defined as the length of a longest shortest path starting at that node. The eccentricity distribution over all nodes is a relevant descriptive property of the graph, and its extreme values allow the derivation of ...
Frank W Takes, Walter Adri Kosters
exaly   +3 more sources

Corneal Thickness, Curvature and Topographic Indices: Implications for Keratoconus Screening in a South African University Clinic Population [PDF]

open access: yesClinical Optometry
Pheagane Motsime William Nkoana, Neo Makgatho, Rethabile Ramatsobane Lekgau, Mufhatutshedzwa M Randima, Munei Masiagwala, Moloantoa Morena, Lebogang Shaun Ntsobe, Phuti Germina MatlhadishaDepartment of Optometry, University of Limpopo, Polokwane, South ...
Nkoana PMW   +7 more
doaj   +2 more sources

Correction of Rotational Eccentricity Based on Model and Microvision in the Wire-Traction Micromanipulation System

open access: yesMicromachines, 2023
In the realm of automatic wire-traction micromanipulation systems, the alignment of the central axis of the coil with the rotation axis of the rotary stage can be a challenge, which leads to the occurrence of eccentricity during rotation.
Yuezong Wang   +4 more
doaj   +1 more source

Eccentricity Correction of Acoustic Variable Density Logging and Its Application

open access: yesCejing jishu, 2023
In order to solve the problems of acoustic wave amplitude reduction and inaccurate cementing quality evaluation caused by the eccentricity of acoustic variable density instrument in logging process, the principle of eccentricity influence of acoustic ...
LIU Dongming   +6 more
doaj   +1 more source

Kepler-1656b's Extreme Eccentricity: Signature of a Gentle Giant [PDF]

open access: yes, 2022
Highly eccentric orbits are one of the major surprises of exoplanets relative to the solar system and indicate rich and tumultuous dynamical histories. One system of particular interest is Kepler-1656, which hosts a sub-Jovian planet with an eccentricity
Petigura, Erik   +6 more
core   +1 more source

A Novelty of Hypergraph Clustering Model (HGCM) for Urban Scenario in VANET

open access: yesIEEE Access, 2022
A vehicular ad hoc network is a dynamic and constantly changing topology that requires reliable clustering to prevent connection failure. A stable cluster head (CH) prevents packet delay (PD) and maintains high throughput in the network.
Mays Kareem Jabbar, Hafedh Trabelsi
doaj   +1 more source

Identification of eccentricity for disc milling cutter of indexable two sided inserts

open access: yesAdvances in Mechanical Engineering, 2021
Tool eccentricity has a significant impact on machining quality, accuracy, and operation status of machine tool. It is difficult to accurately identify tool eccentricity.
Gensheng Li, Chao Xian, Hongmin Xin
doaj   +1 more source

Observing the Microwave Radiation of the Sun during a Solar Eclipse with a Ground-Based Multichannel Microwave Radiometer

open access: yesRemote Sensing, 2022
A ground-based multichannel microwave radiometer (GMR) is commonly used to observe the atmospheric radiation brightness temperature (TB) in order to retrieve atmospheric temperature and humidity profiles. At present, GMRs are used only in meteorology and
Lianfa Lei   +6 more
doaj   +1 more source

Effect of loading eccentricity on the ultimate lateral resistance of twin-piles in clay [PDF]

open access: yes, 2022
This paper studies the effect of loading eccentricity and pile spacing on the ultimate lateral soil resistance of twin-piles using finite element limit analysis and analytical upper bound plasticity methods.
Wu, Fengyuan   +6 more
core   +1 more source

ACCURACY RESEARCH OF THE DIAMETRICAL SIZES FORMING AT GEAR SHAPING BY STEPPED CUTTER [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2015
The paper presents research results of forming accuracy for diametrical sizes at gear shaping with stepped cutter and the traditional method. Analysis of static technological dimensional pitch size chain of wheels being cut is performed.
N. M. Rasulov, U. M. Nadirov
doaj   +1 more source

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