Results 21 to 30 of about 1,305,501 (258)

A Unified Multi-Objective Optimization Framework for UAV Cooperative Task Assignment and Re-Assignment

open access: yesMathematics, 2022
This paper focuses on cooperative multi-task assignment and re-assignment problems when multiple unmanned aerial vehicles (UAVs) attack multiple known targets.
Xiaohua Gao   +7 more
doaj   +1 more source

Influence of Axial Loads to Propagation Characteristics of the Elastic Wave in a Non-Uniform Shaft

open access: yesChinese Journal of Mechanical Engineering, 2019
The vibration propagates through the shaft in the form of elastic waves. The propagation characteristics of the elastic waves are affected by the axial loads.
Yimin Wei   +3 more
doaj   +1 more source

Improved ensemble local mean decomposition based on cubic trigonometric cardinal spline interpolation and its application for rotating machinery fault diagnosis

open access: yesAdvances in Mechanical Engineering, 2020
Ensemble local mean decomposition has been gradually introduced into mechanical vibration signal processing due to its excellent performance in electroencephalogram signal analysis.
Pei Chen   +5 more
doaj   +1 more source

Computation-Based Reliability Analysis [PDF]

open access: yesIEEE Transactions on Computers, 1976
A reliability analysis method for computing systems is considered in which the underlying criteria for "success" are based on the computations the system must perform in the use environment. Beginning with a general model of a "computer with faults," intermediate concepts of a "tolerance relation" and an "environment space" are introduced which account
openaire   +1 more source

Analysis of the reliability of Idegei’s “Kureish genealogy” from “Jami al-tawarikh” by Kadyr Ali-bek and the treatise “On the clan of the Yusupov princes”

open access: yesЗолотоордынское обозрение, 2023
Research objectives: The purpose of this study is to analyze the reliability of Idegei’s “Kureish genealogy” from the “Jami al-tawarikh” by Kadyr Ali-bek and the treatise “On the family of the Yusupov princes”, as well as the reconstruction of Idegei’s ...
Sabitov Zh.M., Tuleubayeva S.A.
doaj   +1 more source

Cooperative Multi-UAV Task Assignment in Cross-Regional Joint Operations Considering Ammunition Inventory

open access: yesDrones, 2022
As combat missions become increasingly complex in both space and time, cross-regional joint operations (CRJO) is becoming an overwhelming trend in modern air warfare.
Xinyong Yu   +6 more
doaj   +1 more source

The Influence of Crack Modes on the Elastic Wave Propagation Characteristics in a Non-Uniform Rotating Shaft

open access: yesApplied Sciences, 2018
The transverse crack in a non-uniform shaft possesses different crack modes, and it can affect the propagation characteristics of the elastic waves in the shaft.
Yimin Wei, Xuan Shi, Qi Liu, Wenhua Chen
doaj   +1 more source

Fatigue Crack Initiation and Propagation Relation of Notched Specimens with Welded Joint Characteristics

open access: yesMetals, 2022
This study focuses on predicting the fatigue life of notched specimens with geometries and microstructure representative of welded joints. It employs 26 series of fatigue tests on welded and non-welded specimens containing notches located in different ...
Moritz Braun   +4 more
doaj   +1 more source

FPSO Hull Structures with Sandwich Plate System in Cargo Tanks

open access: yesApplied Sciences, 2022
Nowadays, the floating production storage and offload system (FPSO) is one of the most common platform types for offshore oil production. The traditional arrangement of the stiffened panels creates obstacles for automated cleaning and inspections by ...
João Pedro Silva   +2 more
doaj   +1 more source

Machine Learning for Long COVID Inference Based on the Acute Phase: A Case Study in Healthcare Professionals

open access: yesIEEE Access
Since 2021, the COVID-19 pandemic has affected global health, economies, and societal structures, leading to great attention to new research and awareness.
Caio B. S. Maior   +4 more
doaj   +1 more source

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