Results 1 to 10 of about 2,481 (113)

FFAE-UNet: An Efficient Pear Leaf Disease Segmentation Network Based on U-Shaped Architecture [PDF]

open access: yesSensors
The accurate pest control of pear tree diseases is an urgent need for the realization of smart agriculture, with one of the key challenges being the precise segmentation of pear leaf diseases.
Wenyu Wang   +4 more
doaj   +2 more sources

Precise Point Positioning with the BeiDou Navigation Satellite System

open access: yesSensors, 2014
By the end of 2012, China had launched 16 BeiDou-2 navigation satellites that include six GEOs, five IGSOs and five MEOs. This has provided initial navigation and precise pointing services ability in the Asia-Pacific regions.
Qile Zhao, Jing Guo, Xing Su
exaly   +3 more sources

Initial Results of the Precise Orbit Determination for the New-Generation BeiDou Satellites (BeiDou-3) Based on the iGMAS Network

open access: yesISPRS International Journal of Geo-Information, 2016
By August 2016, 5 new-generation BeiDou satellites (BeiDou-3) have successfully been launched. The observations of a very limited number of 9 International GNSS (Global Navigation Satellite System) Monitoring and Assessment Service (iGMAS) stations and ...
Bingfeng Tan, Yafei Ning, Xifeng Liu
exaly   +3 more sources

Performance Analysis of Beidou-2/Beidou-3e Combined Solution with Emphasis on Precise Orbit Determination and Precise Point Positioning

open access: yesSensors, 2018
In 2015, the plan for global coverage by the Chinese BeiDou Navigation Satellite System was launched. Five global BeiDou experimental satellites (BeiDou-3e) are in orbit for testing.
Xiaolong Xu
exaly   +3 more sources

High-Accuracy Phase Frequency Detection Technology Based on BDS Time and Frequency Signals [PDF]

open access: yesSensors
For the time and frequency signals of Beidou satellites, a high-accuracy phase frequency detection technology based on phase group synchronization is proposed.
Baoqiang Du, Lanqin Tan
doaj   +2 more sources

Method for Classifying Apple Leaf Diseases Based on Dual Attention and Multi-Scale Feature Extraction

open access: yesAgriculture, 2023
Image datasets acquired from orchards are commonly characterized by intricate backgrounds and an imbalanced distribution of disease categories, resulting in suboptimal recognition outcomes when attempting to identify apple leaf diseases.
Jie Ding   +6 more
doaj   +1 more source

A deep learning framework for identifying essential proteins based on multiple biological information

open access: yesBMC Bioinformatics, 2022
Background Essential Proteins are demonstrated to exert vital functions on cellular processes and are indispensable for the survival and reproduction of the organism.
Yi Yue   +7 more
doaj   +1 more source

IdentPMP: identification of moonlighting proteins in plants using sequence-based learning models [PDF]

open access: yesPeerJ, 2021
Background A moonlighting protein refers to a protein that can perform two or more functions. Since the current moonlighting protein prediction tools mainly focus on the proteins in animals and microorganisms, and there are differences in the cells and ...
Xinyi Liu   +6 more
doaj   +2 more sources

Validation of the accuracy of geodetic automated measurement system based on GNSS platform for continuous monitoring of surface movements in post-mining areas

open access: yesReports on Geodesy and Geoinformatics, 2021
The problem involving the monitoring of surface ground movements in post-mining areas is particularly important during the period of mine closures. During or after flooding of a mine, mechanical properties of the rock mass may be impaired, and this may ...
Sokoła-Szewioła Violetta   +1 more
doaj   +1 more source

Research on Beidou and GPS dual satellite positioning algorithms for substation site positioning

open access: yesInternational Journal of Metrology and Quality Engineering, 2020
With the rapid development of global satellite navigation system technology, multi-mode satellite navigation positioning technology that can be compatible with multiple navigation systems at the same time is bound to become the future development trend ...
Feng Junjie   +3 more
doaj   +1 more source

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