Results 101 to 110 of about 1,326,430 (386)

The Impact of Eclipsing GNSS Satellites on the Precise Point Positioning [PDF]

Remote Sensing, 2018
When satellites enter into the noon maneuver or the shadow crossing regimes, the actual attitudes will depart from their nominal values. If improper attitude models are used, the induced-errors due to the wind-up effect and satellite antenna PCO (Phase Center Offset) will deteriorate the positioning accuracy. Because different generations of satellites
Xinyun Cao, Shoujian Zhang, Kaifa Kuang, Tianjun Liu, Kang Gao   +4 more
openaire   +3 more sources

Detailed kinship estimation for detecting bias among breeding families in a reintroduced population of the endangered bagrid catfish Tachysurus ichikawai

Population Ecology, EarlyView.
In the process of captive breeding and reintroduction of endangered animal species, it is crucial to minimize familial bias in reproductive success during the reintroduction phase to preserve genetic diversity. In this study, we attempted to identify the familial lineage of individuals of the endangered bagrid fish Tachysurus ichikawai born at the ...
Hinano Mizuno, Kouji Nakayama, Tetsuya Akita, Yasuyuki Hashiguchi, Tomonori Osugi, Hirohiko Takeshima   +5 more
wiley   +1 more source

Regularized reconstruction of peak ground velocity and acceleration from very high-rate GNSS precise point positioning with applications to the 2013 Lushan Mw6.6 earthquake

Journal of Geodesy, 2021
Difference methods have been routinely used to compute velocity and acceleration from precise positioning with global navigation satellite systems (GNSS).
Peiliang Xu, Fang Du, Yuanming Shu, Hongping Zhang, Yun Shi   +4 more
semanticscholar   +1 more source

Optimal SNP filtering strategies for pedigree reconstruction: A case study with wild red‐spotted masu salmon population

Population Ecology, EarlyView.
In this article, we tested optimal SNP filtering strategies for accurate parentage assignment and pedigree reconstruction for a wild population of red‐spotted masu salmon, Oncorhynchus masou ishikawae. We found that mid‐point filtering in terms of call rate and minor allele frequency performs well for pedigree reconstruction.
Shohei Noda, Tetsuya Akita, Rui Ueda, Takafumi Katsumura, Yasuyuki Hashiguchi, Hirohiko Takeshima, Takuya Sato   +6 more
wiley   +1 more source

Comparison of kinship‐identification methods for robust stock assessment using close‐kin mark–recapture data for Pacific bluefin tuna

Population Ecology, EarlyView.
In this study, we compared three methods for kinship identification using different algorithms in samples of wild Pacific bluefin tuna and generated genotyping data. The three methods resulted in different numbers of inferred kinship pairs for both generated and actual data. Particularly for the half‐sibling pairs, considerable number of false‐positive
Yohei Tsukahara, Reiichiro Nakamichi, Aiko Matsuura, Tetsuya Akita, Atushi Fujiwara, Nobuaki Suzuki   +5 more
wiley   +1 more source

GNSS precise point positioning :the enhancement with GLONASS [PDF]

, 2013
PhD ThesisPrecise Point Positioning (PPP) provides GNSS navigation using a stand-alone receiver with no base station. As a technique PPP suffers from long convergence times and quality degradation during periods of poo satellite visibility or geometry ...
Martin, Ian
core  

Dendritic cells steering antigen and leukocyte traffic in lymph nodes

FEBS Letters, EarlyView.
Dendritic cells are key players in the activation of T cells and their commitment to effector function. In this In a Nutshell Review, we will discuss how dendritic cells guide the trafficking of antigen and leukocytes in the lymph node, thus influencing T‐cell activation processes. Dendritic cells (DCs) play a central role in initiating and shaping the
Enrico Dotta, Agnieszka Katarzyna Maciola, Tania Baccega, Giulia Pasqual   +3 more
wiley   +1 more source

Real-Time Precise Point Positioning Using Tomographic Wet Refractivity Fields

Remote Sensing, 2018
The tropospheric wet delay induced by water vapor is a major error source in precise point positioning (PPP), significantly influencing the convergence time to obtain high-accuracy positioning.
Wenkun Yu, Biyan Chen, Wujiao Dai, Xiaomin Luo   +3 more
doaj   +1 more source

Insights into PI3K/AKT signaling in B cell development and chronic lymphocytic leukemia

FEBS Letters, EarlyView.
This Review explores how the phosphoinositide 3‐kinase and protein kinase B pathway shapes B cell development and drives chronic lymphocytic leukemia, a common blood cancer. It examines how signaling levels affect disease progression, addresses treatment challenges, and introduces novel experimental strategies to improve therapies and patient outcomes.
Maike Buchner
wiley   +1 more source

The Galileo High-Accuracy Service: Evaluating the Quality of the Corrections and Initial PPP Performance

Engineering Proceedings, 2023
The Galileo High-Accuracy Service (HAS) is providing free Precise Point Positioning (PPP) corrections for Galileo and GPS satellites through the E6b signal and the internet.
Camille Parra, Andreas Schütz, Urs Hugentobler, Thomas Pany, Stefan Baumann   +4 more
doaj   +1 more source