Results 11 to 20 of about 8,311 (171)

Improved Performance of RT-PPP During Communication Outages Based on Position Constraints and Stochastic Model Optimization

Remote Sensing
In the practical application of Real-Time Precise Point Positioning (RT-PPP), the outages in receiving spatial state representation (SSR) information due to communication anomalies can result in a decrease or even divergence of the positioning accuracy ...
Xiaosong Liu, Lin Zhao, Fuxin Yang, Jie Zhang, Jinjian Shi, Chuanlei Zheng   +5 more
doaj   +2 more sources

Real-Time Tropospheric Delays Retrieved from Multi-GNSS Observations and IGS Real-Time Product Streams

Remote Sensing, 2017
The multi-constellation Global Navigation Satellite Systems (GNSS) offers promising potential for the retrieval of real-time (RT) atmospheric parameters to support time-critical meteorological applications, such as nowcasting or regional short-term ...
Cuixian Lu, Xinghan Chen, Gen Liu, Galina Dick, Jens Wickert, Xinyuan Jiang, Kai Zheng, Harald Schuh   +7 more
doaj   +8 more sources

Overbounding observation errors considering elevation-related distribution characteristics for maritime RT-PPP integrity monitoring

Satellite Navigation
Integrity monitoring ensures the reliability of Real-Time Precise Point Positioning (RT-PPP) by calculating the Protection Level (PL) in maritime applications.
Fuxin Yang, Xiaobo Liu, Jie Zhang, Weiyu Zhao, Liang Li, Mohammed Quddus   +5 more
doaj   +2 more sources

Single-Dose TACE-Like Injection of Sustained-Release Panobinostat/IL-12 Polymeric Microparticles is Effective in Preclinical Liver Cancer Models. [PDF]

Adv Sci (Weinh)
A novel PLGA/PBAE polymer microparticle platform revolutionizes intermediate‐stage liver cancer treatment by co‐delivering panobinostat and IL‐12 via a single TACE‐like injection. This sustained‐release system overcomes tumor immunosuppression, triggers robust innate and adaptive immune responses, and establishes tertiary lymphoid structures ...
Yu H, Li L, Surwase SS, Zhou XMM, Qian H, Sunshine JC, Selaru FM, Green JJ.   +7 more
europepmc   +2 more sources

Paternal Sperm Gnas-ICR Epigenetic Programming Contributes to PPP-Like Phenotypes in Female Offspring. [PDF]

Adv Sci (Weinh)
A paternal glucocorticoid–sperm Gnas‐ICR axis is linked to ovarian endocrine programming in female offspring. Paternal preconception caffeine exposure elevates corticosterone, promotes sperm Gnas‐ICR hypermethylation, and is associated with ovarian Gnas upregulation, cAMP/PKA/CREB–StAR activation, enhanced estradiol synthesis, and PPP‐like phenotypes ...
Huang J, Chen L, Wu T, Li Y, Wang H.
europepmc   +2 more sources

Comparison of RT-PPP and RT-PPP-AR Methods [PDF]

Academic Perspective Procedia, 2020
The Precise Point Positioning (PPP) is an absolute positioning method which emerged as an alternative to the relative positioning method. This method is widely used in many applications in recent years. In this method the static and kinematic positioning can be performed with high accuracy by using single GNSS receiver.
Salih Alcay, Omer Faruk Atiz, Sermet Ogutcu   +2 more
openaire   +1 more source

FAST CONVERGING LIDAR-AIDED PRECISE POINT POSITIONING: A CASE STUDY WITH LOW-COST GNSS [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
With the growing interest in autonomous driving, accurate vehicle positioning remains an open problem, especially in urban environments. According to regulatory organisations, the vehicle positioning accuracy is required to be centimetre-level.
J. Zhang, K. Khoshelham, A. Khodabandeh
doaj   +1 more source

Perbandingan Ketelitian GNSS dengan Metode NRTK, Real-Time PPP dan Post-Processed PPP

Journal of Geospatial Information Science and Engineering, 2022
Penelitian ini bertujuan untuk membandingkan ketelitian data koordinat tiga dimensi pengukuran GNSS dengan metode Network Real-Time Kinematik (NRTK), Real-Time Kinematik Precise Point Positioning (RTK-PPP) dan Precise Point Positioning (PPP) secara post ...
Syafril Ramadhon, FX. Yudi Tryono, Ihwan Fauzi, Gian Nugraha Pramudita   +3 more
doaj   +1 more source

Assessment of Multi-GNSS RT-PPP Services for the Antarctic Region

ARCTIC, 2023
The international service that ensures access to data and products of global navigation satellite systems (GNSSs), known as the IGS, runs a real-time service (RTS) project to support users who need real-time access to precise products. Thanks to the RTS project, it is now possible to obtain real-time precise point positioning (RT-PPP) solutions. RT-PPP
Serdar Erol, Reha Metin Alkan, Bilal Mutlu   +2 more
openaire   +1 more source

Method Matters: A Proteomics-Informed Framework for Selecting Extracellular Vesicle Isolation Methods for Plasma. [PDF]

J Extracell Biol
This study evaluated 11 extracellular vesicle (EV) isolation methods which generate plasma‐derived EV‐containing preparations with varying degrees of contaminants. No single approach optimized purity and proteome coverage. In this paper we use proteomics to present an Evidence‐Based Framework to select plasma EV isolation methods based on downstream ...
Werle SJ, Therkelsen MLN, Meng C, Grønborg M, Gluud LL, Damgaard D.   +5 more
europepmc   +2 more sources