Results 51 to 60 of about 4,045,666 (220)

Investigation of the accuracy of BeiDou, QZSS and QZSS/BeiDou satellites configuration for short, medium and long baselines in the Asia-Pacific regions

Reports on Geodesy and Geoinformatics
The field of satellite navigation has seen significant advancements due to the fast development of multi-constellation Global Navigation Satellite Systems (GNSS).
Pirti Atinç
doaj   +1 more source

YOLOv11-RDTNet: A Lightweight Model for Citrus Pest and Disease Identification Based on an Improved YOLOv11n

Agronomy
Citrus pests and diseases severely impact fruit yield and quality. However, existing object detection models face limitations in complex backgrounds, target occlusion, and small target recognition, and they struggle to be efficiently deployed on resource-
Qiufang Dai, Shiyao Liang, Zhen Li, Shilei Lyu, Xiuyun Xue, Shuran Song, Ying Huang, Shaoyu Zhang, Jiaheng Fu   +8 more
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The effect of the distribution and numbers of ground control points on the precision of producing orthophoto maps with an unmanned aerial vehicle

Journal of Asian Architecture and Building Engineering, 2021
Ground control points (GCPs) are used in the process of indirectly georeferencing unmanned aerial systems (UAS) images. The aim of this study was to determined how many GCPs and what kind of distribution is required in order to obtain high precision ...
Ali Ulvi
doaj   +1 more source

In Vitro Comparison of Three Intraoral Scanners for Implant—Supported Dental Prostheses

Dentistry Journal, 2022
With continuing technological developments, there have been advances in the field of fixed prosthetics, particularly in impression-taking techniques. These technological advances mean that a wide variety of diagnostic and/or rehabilitation possibilities ...
Vitória Costa, António Sérgio Silva, Rosana Costa, Pedro Barreiros, Joana Mendes, José Manuel Mendes   +5 more
doaj   +1 more source

Research on the TF–IDF algorithm combined with semantics for automatic extraction of keywords from network news texts

Journal of Intelligent Systems
As the number of online news texts continues to increase, the algorithm of automatic keyword extraction becomes a key content in facilitating users’ fast access to the desired content.
Wang Yan
doaj   +1 more source

Development of a Precision Map of the Village Based using Drone Imagery to Improve the Quality of Planning

Jurnal Pembangunan dan Alam Lestari
Integrating drone technology into rural planning offers transformative advancements in geographic mapping by providing exceptional precision, efficiency, and accessibility.
Gunawan Prabowo, Mohammad Bisri, Rosihan Asmara, Ari Sugeng, Suprapedi , Abdul Aziz   +5 more
doaj   +1 more source

Validity and Reliability of the Inertial Measurement Unit for Barbell Velocity Assessments: A Systematic Review

Sensors, 2021
The use of inertial measurement unit (IMU) has become popular in sports assessment. In the case of velocity-based training (VBT), there is a need to measure barbell velocity in each repetition.
Filipe Manuel Clemente, Zeki Akyildiz, José Pino-Ortega, Markel Rico-González   +3 more
doaj   +1 more source

Precision tunable resonant microwave cavity [PDF]

, 1987
A tunable microwave cavity containing ionizable metallic vapor or gases and an apparatus for precisely positioning a microwave coupling tip in the cavity and for precisely adjusting at least one dimension of the cavity are disclosed.
Calco, Frank S., Nakanishi, Shigeo, Scarpelli, August R.   +2 more
core   +1 more source

Opportunities From Precision Flavour Physics [PDF]

, 2009
The possible role of precision flavour physics, and particularly of B physics, in the next decade is briefly discussed. Few 2--3$\sigma$ deviations from the Standard Model found in present $B$ data are reviewed as potential forerunners of new physics ...
Ciuchini, Marco
core  

Estudo comparativo da eficiência de diferentes técnicas de mensuração da concentração espermática em suínos Efficiency of different measurement techniques of sperm concentration in swine

Revista Brasileira de Zootecnia, 2004
A inseminação artificial (IA) em suínos é uma técnica cada vez mais utilizada na suinocultura moderna, pois propicia ao suinocultor vantagens quanto ao desempenho dos reprodutores, ao controle dos cruzamentos e à facilidade na introdução de material ...
Wagner Loesch Vianna, Daniel Gonçalves Bruno, André Namindome, Aline Campos Rosseto, Paulo Henrique Mazza Rodrigues, Marcos Eduardo Pinese, Aníbal de Sant'Anna Moretti   +6 more
doaj   +1 more source