Results 1 to 10 of about 11,519 (228)

A BeiDou Signal Acquisition Approach Using Variable Length Data Accumulation Based on Signal Delay and Multiplication [PDF]

Sensors, 2020
The secondary modulation with the Neumann-Hoffman code increases the possibility of bit sign transition. Unlike other GNSS signals, there is no pilot component for synchronization in BeiDou B1/B3 signals, which increases the complexity in acquisition.
Menghuan Yang, Hong Wu, Qiqi Wang, Yingxin Zhao, Zhiyang Liu   +4 more
doaj   +2 more sources

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

Sensors
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, Jie Ding, Xin Shu, Wenwen Xu, Yunzhi Wu   +4 more
doaj   +2 more sources

A Novel Hybrid Approach for UT1-UTC Ultra-Short-Term Prediction Utilizing LOD Series and Sum Series of LOD and First-Order-Difference UT1-UTC [PDF]

Sensors
Accurate ultra-short-term prediction of UT1-UTC is crucial for real-time applications in high-precision reference frame conversions. Presently, traditional LS + AR and LS + MAR hybrid methods are commonly employed for UT1-UTC prediction.
Fei Ye, Minsi Ao, Ningbo Li, Rong Zeng, Xiangqiang Zeng   +4 more
doaj   +2 more sources

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

PeerJ, 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, Yueyue Shen, Youhua Zhang, Fei Liu, Zhiyu Ma, Zhenyu Yue, Yi Yue   +6 more
doaj   +2 more sources

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

Agriculture, 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, Cheng Zhang, Xi Cheng, Yi Yue, Guohua Fan, Yunzhi Wu, Youhua Zhang   +6 more
doaj   +1 more source

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

BMC 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, Chen Ye, Pei-Yun Peng, Hui-Xin Zhai, Iftikhar Ahmad, Chuan Xia, Yun-Zhi Wu, You-Hua Zhang   +7 more
doaj   +1 more source

A multirobot system for autonomous deployment and recovery of a blade crawler for operations and maintenance of offshore wind turbine blades

Journal of Field Robotics, Volume 40, Issue 1, Page 73-93, January 2023., 2023
Abstract Offshore wind farms will play a vital role in the global ambition of net zero energy generation. Future offshore wind farms will be larger and further from the coast, meaning that traditional human‐based operations and maintenance approaches will become infeasible due to safety, cost, and skills shortages.
Zhengyi Jiang, Ferdian Jovan, Peiman Moradi, Tom Richardson, Sara Bernardini, Simon Watson, Andrew Weightman, Duncan Hine   +7 more
wiley   +1 more source

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

Reports 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, Siejka Zbigniew   +1 more
doaj   +1 more source

Cherry defect and classification detection based on improved YOLOX model

Shipin yu jixie, 2023
Objective: In order to expand the scope of cherry sales and achieve rapid grading of cherries under industrial conditions. Methods: Firstly, the YOLOX network was used to detect the defective fruit, in order to solve some problems where the defect was ...
LIU Jing-yu, PEI Yue-kun, CHANG Zhi-yuan, CHAI Zhi, CAO Pei-pei   +4 more
doaj   +1 more source

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

International 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, Shi Junfeng, Gao Lei, Huang Hongwei   +3 more
doaj   +1 more source