Results 71 to 80 of about 1,544,815 (380)
Relativity in the Global Positioning System
Living Reviews in Relativity, 2003 The Global Positioning System (GPS) uses accurate, stable atomic clocks in satellites and on the ground to provide world-wide position and time determination.
Ashby Neil
doaj
FEBS Letters, EarlyView.The S1025 peptide is the major antidote to the YrzI toxin, which we renamed here as SpyT (Small Peptide YrzI Toxin) and SpyA (Small Peptide YrzI Antitoxin) (1). Degradation of the toxin–antitoxin spyTA mRNA, either by a translation‐dependent cleavage by the endoribonuclease Rae1 (2) or by direct attack by 3′‐exoribonucleases (3), also contributes to ...
Laetitia Gilet +4 more
wiley +1 more source
Ionospheric biases correction for coordinates derived from GPS single point positioning
Annals of Geophysics, 2005 Most GPS users employ low cost receivers. These receivers do not allow users to record the pseudorange that they observe, but the computed coordinates. This work presents an original and simple method to correct ionospheric biases introduced in
M. Herraiz +4 more
doaj +1 more source
Positive solutions of some parabolic system with cross-diffusion and nonlocal initial conditions [PDF]
arXiv, 2010 The paper is concerned with a system consisting of two coupled nonlinear parabolic equations with a cross-diffusion term, where the solutions at positive times define the initial states. The equations arise as steady state equations of an age-structured predator-prey system with spatial dispersion.
arxiv
Substructuring the Hiptmair-Xu preconditioner for positive Maxwell problems [PDF]
arXiv, 2023 Considering positive Maxwell problems, we propose a substructured version of the Hiptmair-Xu preconditioner based on a new formula that expresses the inverse of Schur systems in terms of the inverse matrix of the global volume problem.
arxiv
Global Positioning System Applications [PDF]
, 1986 The space-based Navstar Global Positioning System (GPS), which is scheduled to achieve full operational status by late 1988, will consist of 18 active satellites placed around six orbital rings at 10,898 nautical miles above the earth.
Ashley, James D., Logsdon, Thomas S.
core +1 more source
Navigation in Antarctica Today: The Global Positioning System [PDF]
This site contains information that students use to investigate the use of the Global Positioning System (GPS) in Antarctica and across the globe. They conduct research on the Web to understand how and why GPS is used today. They also complete a hands-on
core +1 more source
FEBS Letters, EarlyView.Venom peptides have shown promise in treating pain. Our study uses computer screening to identify a peptide that targets a sodium channel (NaV1.7) linked to chronic pain. We produced the peptide in the laboratory and refined its design, advancing the search for innovative pain therapies.
Gagan Sharma +8 more
wiley +1 more source
Toric Differential Inclusions and a Proof of the Global Attractor Conjecture [PDF]
arXiv, 2015 The global attractor conjecture says that toric dynamical systems (i.e., a class of polynomial dynamical systems on the positive orthant) have a globally attracting point within each positive linear invariant subspace -- or, equivalently, complex balanced mass-action systems have a globally attracting point within each positive stoichiometric ...
arxiv
The Global Positioning System [PDF]
, 2015 GPS, the Global Positioning System, will rapidly become the most widely used radionavigation system in the world when it becomes operational later in this decade.
Stansell, Thomas A.
core +1 more source