Results 31 to 40 of about 2,779 (194)

Development of a New Tabular Zenith Tropospheric Delay Model for Real-Time GNSS Applications

IEEE Access, 2021
The tropospheric delay is a major error source for Global Navigation Satellite System (GNSS) positioning and navigation, and usually can be corrected by using an empirical model.
Jian Mao, Junyang Han, Tiejun Cui
doaj   +1 more source

Validation of 7 Years in-Flight HY-2A Calibration Microwave Radiometer Products Using Numerical Weather Model and Radiosondes [PDF]

, 2019
Haiyang-2A (HY-2A) has been working in-flight for over seven years, and the accuracy of HY-2A calibration microwave radiometer (CMR) data is extremely important for the wet troposphere delay correction (WTC) in sea surface height (SSH) determination.
He, Xiufeng, Liu, Yang, Liu, Yanxiong, Wang, Jungang, Wu, Zhilu, Xu, Wenxue   +5 more
core   +1 more source

A hybrid-grid global model for the estimation of atmospheric weighted mean temperature considering time-varying vertical adjustment rate in GNSS precipitable water vapour retrieval [PDF]

Geoscientific Model Development
The atmospheric weighted mean temperature (Tm) is a key parameter in global navigation satellite system (GNSS) water vapour retrieval and can convert the zenith wet delay (ZWD) into precipitable water vapour (PWV). However, there are some shortcomings in
S. Xie, J. Zhang, L. Huang, F. Chen, Y. Wu, Y. Wang, L. Liu   +6 more
doaj   +1 more source

Automated occupation coding with hierarchical features: a data-centric approach to classification with pre-trained language models

Discover Artificial Intelligence, 2023
Occupation coding is the classification of information on occupation that is collected in the context of demographic variables. Occupation coding is an important, but a tedious task for researchers in social science and official statistics that calls for
Parisa Safikhani, Hayastan Avetisyan, Dennis Föste-Eggers, David Broneske   +3 more
doaj   +1 more source

Machine Learning-Based Calibrated Model for Forecast Vienna Mapping Function 3 Zenith Wet Delay

Remote Sensing, 2023
An accurate estimation of zenith wet delay (ZWD) is crucial for global navigation satellite system (GNSS) positioning and GNSS-based precipitable water vapor (PWV) inversion. The forecast Vienna Mapping Function 3 (VMF3-FC) is a forecast product provided
Feijuan Li, Junyu Li, Lilong Liu, Liangke Huang, Lv Zhou, Hongchang He   +5 more
doaj   +1 more source

The effect of data sources on calculating mean temperature and integrated water vapor in Iran

Meteorological Applications, 2023
The weighted mean temperature (Tm) plays a crucial role in calculating Precipitable Water Vapor (PWV) and integrated water vapor (IWV) using Global Navigation Satellite Systems (GNSS) techniques.
Hassan Rahimi, Jamal Asgari, Vahab Nafisi   +2 more
doaj   +1 more source

Manual dexterity in school-age children measured by the Grooved Pegboard test: Evaluation of training effect and performance in dual-task

Heliyon, 2023
Background: Manual dexterity is the ability to manipulate objects using the hands and fingers for a specific task. Although manual dexterity is widely investigated in the general and special population at all ages, numerous aspects still remain to be ...
Valerio Giustino, Antonino Patti, Luca Petrigna, Flavia Figlioli, Ewan Thomas, Vincenza Costa, Luigi Galvano, Jessica Brusa, Domenico Savio Salvatore Vicari, Simona Pajaujiene, Daniela Smirni, Antonio Palma, Antonino Bianco   +12 more
doaj   +1 more source

GPT3 for Healthy Ageing?

, 2023
For the well-being of people, in particular elderly people, AI represents a valid option to set up support system based on ICT. A large number of approach are possible, but it is important to consider that a huge quantity of technology/ies are available, with a level of robustness and reliability much higher than lab prototypes.
Laura Burzagli, Simone Naldini
openaire   +1 more source

The GNSS PWV retrieval using non-observation meteorological parameters based on ERA5 and its relation with precipitation

Geodesy and Geodynamics
The pressure and temperature significantly influence precipitable water vapor (PWV) retrieval. Global Navigation Satellite System (GNSS) PWV retrieval is limited because the GNSS stations lack meteorological sensors.
Weifeng Yang, Zhiping Chen, Kaiyun Lv, Pengfei Xia, Tieding Lu   +4 more
doaj   +1 more source

Design of text generator application with OpenAI GPT-3

Journal of Electrical Engineering and Computer, 2023
The increasing need for text content creation today challenges the development of systems that can alleviate the need for text creation. Currently, text generation is done manually and has various shortcomings, especially in terms of time constraints ...
Kaira Milani Fitria
doaj   +1 more source