Results 21 to 30 of about 317,882 (228)

Safe transductive support vector machine

open access: yesConnection Science, 2022
Since semi-supervised learning can use fewer labelled samples to train a better model, semi-supervised methods are becoming popular in data mining. As an important algorithm of semi-supervised support vector machines (S $ ^{3} $ VM), transductive support
Haiyan Chen   +3 more
doaj   +1 more source

Multiscale Fusion Network Based on Global Weighting for Hyperspectral Feature Selection

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
Feature selection (FS) is an important way to achieve high-precision and efficient classification of hyperspectral remote sensing images. However, most existing FS methods use a fixed scale to extract features and the relationship between spatial and ...
Jinjin Wang   +4 more
doaj   +1 more source

The effect of aspect ratio and axial magnetic field on thermocapillary convection in liquid bridges with a deformable free-surface

open access: yesEngineering Applications of Computational Fluid Mechanics, 2016
Three-dimensional numerical simulations are performed to analyze the effect of the aspect ratio Ar and axial magnetic field on thermocapillary convection in liquid bridges with deformable free-surface under microgravity, in which the volume of fluid (VOF)
Yin Zhang   +4 more
doaj   +1 more source

Maximum likelihood distance estimation algorithm for multi-carrier radar system

open access: yesThe Journal of Engineering, 2019
In this study, a maximum likelihood distance estimation algorithm is proposed for a multi-carrier radar system to estimate the time delay of non-integer sampling intervals. Particularly, the equivalent relationship between time domain delay and frequency
Yue Chen   +4 more
doaj   +1 more source

Velocity-Adaptive Prescribed Performance Control for Carrier-Based Aircraft Based on Guardian Maps

open access: yesInternational Journal of Aerospace Engineering, 2023
The automatic carrier landing process is a significant and complex due to the plant variation of carrier-based aircraft. To reasonably identify the stability interval for specific performance, an adaptive control strategy based on the guardian map ...
Chenliang Li   +3 more
doaj   +1 more source

A mathematical model for predicting the pressure drop in a rotating cavity with a tubed vortex reducer

open access: yesEngineering Applications of Computational Fluid Mechanics, 2019
The flow characteristics of a tubed vortex reducer, which was used to reduce the pressure drop in an aeroengine air bleed system, were studied in this paper.
Song Wei   +4 more
doaj   +1 more source

Comprehensive Method for Evaluating Reaction Rates of Steam Methane Reforming on Catalyst-Coated Channel Surface with Consideration of Limiting Steps

open access: yesJournal of Thermal Science and Technology, 2013
This study presents a method that can be employed to obtain the reaction rate and be widely applied to the simulation of steam methane reforming in a channel with a catalyst on the wall.
Kyaw Kyaw Lin   +5 more
doaj   +1 more source

Variable Stiffness Identification and Configuration Optimization of Industrial Robots for Machining Tasks

open access: yesChinese Journal of Mechanical Engineering, 2022
Industrial robots are increasingly being used in machining tasks because of their high flexibility and intelligence. However, the low structural stiffness of a robot significantly affects its positional accuracy and the machining quality of its operation
Jiachen Jiao   +7 more
doaj   +1 more source

Research on the safe separation corridor of the combined aircraft and its generation method

open access: yesXibei Gongye Daxue Xuebao, 2023
Aerial safety separation is an important indicator to evaluate the flight performance of medium and low speed combination aircraft. In this paper, the concept of impact box and safe separation corridor will be introduced for the air separation problem of
PAN Yihua   +4 more
doaj   +1 more source

Enhancement of the Through‐Thickness Electrical Conductivity of Carbon‐Fiber‐Reinforced Plastics Using Large Graphite Particles

open access: yesAdvanced Engineering Materials, EarlyView.
To enhance through‐thickness conductivity without sacrificing impregnation, large spherical graphite particles are intentionally employed in a low‐viscosity resin. Unlike finer conductive fillers, these particles remain outside the fiber bundles and accumulate in resin‐rich interlaminar regions during molding.
Keito Hosoe   +6 more
wiley   +1 more source

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