Results 71 to 80 of about 5,140 (182)

Cross-Modal Graph Attention for Bridge SHM Data Imputation

Sensors
Bridge structural health monitoring (SHM) systems often suffer from large-scale data missing due to sensor faults, communication interruptions and other reasons during long-term operation, which seriously restricts the reliability of structural state ...
Jiawei Xiong, Liangliang Hu, Xiaolin Meng, Xiangdong An, Yilin Xie   +4 more
doaj   +1 more source

Emerging Technologies: the digital revolution around and above us

GEOmedia, 2017
Ubiquitous Localization and Timing, Ubiquitous Sensing, Ubiquitous Connectivity, 3D Digital Modeling: these four main technological trends are triggering an epochal transition in the history of mankind, characterized by an increasing predominance of ...
Marco Lisi
doaj  

Use of Prenasal Thickness, Nasal Bone Length and Their Ratio in Diagnosing Down Syndrome at 16‐25 weeks' of gestation in India: A Retrospective, Observational, Case Control Study

iRADIOLOGY
Background It is found to have association of facial parameters with trisomy 21 fetuses (T 21). We have compared prenasal thickness (PNT), nasal bone length (NBL), and the PNT:NBL ratio of normal fetuses with fetuses with trisomy 21 (T 21) between 16 and
Mhaske Nilesh Madhukar, Rachna Gupta, Akshatha Sharma, Smriti Prasad, Anita Kaul   +4 more
doaj   +1 more source

TB Data Improvement in Nkembo Health Treatment Center in Libreville, Gabon

Tropical Medicine and Infectious Disease
Although the estimated tuberculosis (TB) incidence in Gabon is declining, there have been challenges with treatment coverage, HIV status and treatment outcome documentation.
Casimir Manzengo, Farai Mavhunga, Nlandu Roger Ngatu, Fleur Lignenguet, Stredice Manguinga, Ghislaine Asseko Nkone   +5 more
doaj   +1 more source

Background and Recent Advances in the Locata Terrestrial Positioning and Timing Technology

Sensors, 2019
Global Navigation Satellite System (GNSS) is the most widely used Positioning, Navigation, and Timing (PNT) technology in the world today, but it suffers some major constraints.
Chris Rizos, Ling Yang
doaj   +1 more source

Environmental exposure to perchlorate, nitrate, and thiocyanate in relation to biological aging in U.S. adults, a cross-sectional NHANES study

Frontiers in Public Health
BackgroundFew studies have investigated the associations between perchlorate, nitrate, and thiocyanate (PNT) and biological aging. This study aimed to assess the association between PNT and biological aging among U.S.
Weiliang Kong, Yina Jin
doaj   +1 more source

A Robust and Reliable Positioning Method for Complex Environments Based on Quality-Controlled Multi-Sensor Fusion of GNSS, INS, and LiDAR

Remote Sensing
The multi-source fusion localization algorithm demonstrates advantages in achieving continuous localization. However, its reliability and robustness could not be guaranteed and still with some insufficiencies in complex environments, especially for ...
Ziteng Zhang, Chuanzhen Sheng, Shuguo Pan, Xingxing Wang, Baoguo Yu, Jingkui Zhang   +5 more
doaj   +1 more source

Demand and key technology for a LEO constellation as augmentation of satellite navigation systems

Satellite Navigation
A Low Earth Orbit (LEO) constellation augmenting satellite navigation is important in the future development of Global Navigation Satellite System (GNSS).
Yuanxi Yang, Yue Mao, Xia Ren, Xiaolin Jia, Bijiao Sun   +4 more
doaj   +1 more source

LEO-PNT Feasibility Aspects: Satellite Navigation Payload Size, Weight, and Power Analysis

IEEE Access
Low Earth Orbit (LEO) satellites are expected to improve the robustness and reliability of critical Positioning, Navigation, and Timing (PNT) services by increasing both the efficiency and diversity of Global Navigation Satellite Systems (GNSS). However,
Mayank, F. S. Prol, V. Lunden, Z. Saleem, Guillem Foreman-Campins, S. Sharma, E. S. Lohan, M. Z. H. Bhuiyan, S. Kaasalainen, H. Kuusniemi, J. Praks   +10 more
doaj   +1 more source

Current vaccination status and safety of children with peripheral neuroblastoma in the real-world

Frontiers in Immunology
Backgroundperipheral neuroblastic tumors (pNT) have high incidence and mortality, and infants are prone to various infectious diseases. The purpose of this study is to understand the immunization status of children with pNT in the real-world and the ...
Heping Shen, Yuyang Xu, Yuxuan Zhan, Yan Liu, Xuechao Zhang, Mingyan Li, Chai Ji   +6 more
doaj   +1 more source