Results 91 to 100 of about 850,443 (319)

ACCURACY TESTING OF THE ONLINE FREE GNSS PPP SERVICES, AS A FUNCION OF OBSERVATION DURATION AND THE ELAPSED TIME FROM MEASUREMENT EPOCH TO EPOCH OF MEASUREMENT COMPUTATION [PDF]

Geodetski Glasnik, 2011
Use of PPP has become possible since the advent of precise satellite ephemerides and clock corrections from IGS. This work represents a research in attainable accuracy and reliability of the free online GNSS services (APPS, CSRS, GAPS, magicGNSS ...
Denis Tabučić, Medžida Mulić, Asim Bilajbegović   +2 more
doaj   +1 more source

Human colon organoid differentiation from induced pluripotent stem cells using an improved method

FEBS Letters, Volume 599, Issue 6, Page 912-924, March 2025.
We compared established protocols to differentiate induced pluripotent stem cells into colon organoids and found that activation of bone morphogenetic protein 2 signaling induced gene expression of colon‐specific markers. Adenovirus‐mediated transduction of the transcription factors HOXD13 or SATB2 further enhanced colonic gene expression, suggesting ...
I‐Ting Lee, Yu Takahashi, Takashi Sasaki, Yoshio Yamauchi, Ryuichiro Sato   +4 more
wiley   +1 more source

Ultra-Low-Cost Real-Time Precise Point Positioning Using Different Streams for Precise Positioning and Precipitable Water Vapor Retrieval Estimates

Algorithms
This article aims to examine the real-time precise point positioning (PPP) solution’s accuracy utilizing the low-cost dual-frequency multi-constellation U-blox ZED-F9P module and real-time GNSS orbit and clock products from five analysis centers ...
Mohamed Abdelazeem, Amgad Abazeed, Hussain A. Kamal, Mudathir O. A. Mohamed   +3 more
doaj   +1 more source

Performance Analysis of Several GPS/Galileo Precise Point Positioning Models

Sensors, 2015
This paper examines the performance of several precise point positioning (PPP) models, which combine dual-frequency GPS/Galileo observations in the un-differenced and between-satellite single-difference (BSSD) modes.
Akram Afifi, Ahmed El-Rabbany
doaj   +1 more source

False Positive Removal for 3D Vehicle Detection with Penetrated Point Classifier [PDF]

arXiv, 2020
Recently, researchers have been leveraging LiDAR point cloud for higher accuracy in 3D vehicle detection. Most state-of-the-art methods are deep learning based, but are easily affected by the number of points generated on the object. This vulnerability leads to numerous false positive boxes at high recall positions, where objects are occasionally ...
arxiv  

Insights into the renal pathophysiology in Hermansky‐Pudlak syndrome‐1 from urinary extracellular vesicle proteomics and a new mouse model

FEBS Letters, Volume 599, Issue 7, Page 1055-1074, April 2025.
Hermansky‐Pudlak syndrome type 1 (HPS‐1) is a rare, autosomal recessive disorder with poorly understood renal involvement. Urinary extracellular vesicle (uEV) proteomics and a novel Hps1 mouse model reveal mitochondrial abnormalities and lipid accumulation in HPS‐1 kidney proximal tubule cells. Serum ApoA1 correlates with kidney function in our patient
Dawn M. Maynard, Bernadette R. Gochuico, Hadass Pri Chen, Christopher K. E. Bleck, Patricia M. Zerfas, Wendy J. Introne, William A. Gahl, May C. V. Malicdan   +7 more
wiley   +1 more source

The Generic Multiple-Precision Floating-Point Addition With Exact Rounding (as in the MPFR Library) [PDF]

arXiv, 2005
We study the multiple-precision addition of two positive floating-point numbers in base 2, with exact rounding, as specified in the MPFR library, i.e. where each number has its own precision. We show how the best possible complexity (up to a constant factor that depends on the implementation) can be obtain.
arxiv  

Effect of the 24 September 2011 solar radio burst on precise point positioning service [PDF]

, 2014
An intense solar radio burst occurred on 24 September 2011, which affected the tracking of Global Navigation Satellite Systems’ (GNSS) signals by receivers located in the sunlit hemisphere of the Earth.
Aquino, M., de Jong, Kees, Sreeja, V., Visser, Hans   +3 more
core   +2 more sources

Residues R177 and S178 of the human Na+/H+ antiporter NHA2 are involved in its inhibition by the flavonoid phloretin

FEBS Letters, Volume 599, Issue 6, Page 901-911, March 2025.
The human Na+/H+ antiporter NHA2 transports Na+ or Li+ in exchange for protons across cell membranes, and its dysfunction results in various pathologies, e.g., fertility disorders, hypertension, or diabetes. This work provides the molecular characterization of interactions of NHA2 with its specific inhibitor phloretin, which can be helpful for the ...
Olga Zimmermannova, Martin Kubeš, Tereza Przeczková, Gal Masrati   +3 more
wiley   +1 more source

Cheetah: Mixed Low-Precision Hardware & Software Co-Design Framework for DNNs on the Edge [PDF]

arXiv, 2019
Low-precision DNNs have been extensively explored in order to reduce the size of DNN models for edge devices. Recently, the posit numerical format has shown promise for DNN data representation and compute with ultra-low precision in [5..8]-bits. However, previous studies were limited to studying posit for DNN inference only.
arxiv