Results 21 to 30 of about 170,252 (259)

Three Dimensional Evaluation of Accuracy of Bracket Positioning

open access: yesJournal of Pharmacy and Bioallied Sciences, 2023
ABSTRACT Introduction: The success of orthodontic treatment depends on accurate bracket placement, so researchers are constantly exploring new direct and indirect bonding methods with the help of cutting-edge imaging technologies like cone beam computed tomography (CBCT), which provides full ...
Kapil Kamal Kishor Fafat   +5 more
openaire   +3 more sources

A Vessel Position Precision Analysis Based on a Two-Star Combined Approach

open access: yesJournal of Marine Science and Engineering
Traditional celestial navigation mainly utilized the sextant to measure the attitude and the position contour method to calculate and resolve the vessel’s positioning problem, but these methods are not rigorous, having major deficiencies in the ...
Yulin Wu   +4 more
doaj   +1 more source

Analysis of the Efficiency of the Kalman-Type Correlation Algorithm for Tracking of a Small UAV in the Presence of Uncorrelated Interference

open access: yesVìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, 2021
The article shows the relevance of the problem of development and analysis of algorithms for tracking small-sized UAVs according to video surveillance.
A. O. Herasymenko, S. Ya. Zhuk
doaj   +1 more source

The Positioning Technology for Underwater Wireless Optical Communication Systems

open access: yesGuangtongxin yanjiu, 2023
In recent years, with the continuous promotion of the " Ocean Power" strategy, Underwater Wireless Optical Communication (UWOC) has played an important role in marine military, underwater environment monitoring, submarine oil exploration and marine ...
ZHANG Teng-xiao, QIU Yang
doaj  

Positioning performance analysis on combined GPS/BDS precise point positioning

open access: yesGeodesy and Geodynamics, 2020
Combining the observation data from five Multi-GNSS Experiment (MGEX) stations with the precise orbit and clock products from Global Positioning System (GPS) and BeiDou Navigation Satellite System (BDS), we studied the model of combined GPS/BDS precise ...
Jing Xiong, Fei Han
doaj   +1 more source

A BDS/LTE-R Enhanced Data Fusion Positioning Algorithm Based on Deep Learning

open access: yesJournal of Applied Science and Engineering, 2022
Integrated positioning methods in the high-velocity train control system require auxiliary equipment leading to more construction and maintenance costs.
Miao Luo   +3 more
doaj   +1 more source

Ultrasonic Array-Based Multi-Source Fusion Indoor Positioning Technology

open access: yesSensors
Underground mining involves numerous risks, such as collapses, gas leaks, and explosions, posing significant threats to worker safety. In this work, we develop an indoor localization system that uses Bluetooth for coarse positioning and ultrasonic arrays
Cong Li   +5 more
doaj   +1 more source

Three-dimensional Space Positioning Algorithm Based on Planar Projection [PDF]

open access: yesJisuanji gongcheng, 2016
In the process of Wireless Sensor Network(WSN) node positioning,it is more important to improve the x-axis and y-axis positioning accuracy of an unknown node than z-axis positioning accuracy,so this paper proposes a positioning algorithm based on planar ...
FENG Xiaojie,PENG Yong,WU Xisheng
doaj   +1 more source

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

open access: yesFEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Subtype‐specific enhancer RNAs define transcriptional regulators and prognosis in breast cancers

open access: yesMolecular Oncology, EarlyView.
This study employed machine learning methodologies to perform the subtype‐specific classification of RNA‐seq data sets, which are mapped on enhancers from TCGA‐derived breast cancer patients. Their integration with gene expression (referred to as ProxCReAM eRNAs) and chromatin accessibility profiles has the potential to identify lineage‐specific and ...
Aamena Y. Patel   +6 more
wiley   +1 more source

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