Results 131 to 140 of about 69,393 (296)
Improving Thermospheric Density Predictions in Low‐Earth Orbit With Machine Learning
Space WeatherThermospheric density is one of the main sources of uncertainty in the estimation of satellites' position and velocity in low‐Earth orbit. This has negative consequences in several space domains, including space traffic management, collision avoidance ...
Giacomo Acciarini +6 more
doaj +1 more source
Drag-free Satellite SimulatorWe have been investigating a possibility of launching a satellite in a planetary orbit to test the general theory of relativity. As a first step of it, we have fabricated a drag-free system model for a laboratory simulation in order to acquire the fundamental technique and find unexpected problems.
openaire
Atmospheric drag on artificial satellites
, 1962 By using observed values of dP/dt and a convenient model to represent the variable density (ρ) and the scale height (H) of the atmosphere, we calculate mean values for the effective cross-section (S) of a non-spherical satellite at every day during a period of about two and half months.
openaire +1 more source
Ion Activation Methods for Top‐Down Proteomics
Mass Spectrometry Reviews, EarlyView.ABSTRACT Mass spectrometry (MS) has emerged as a premier method used to characterize the sequences of proteins. Top‐down proteomics aims to capture the multiple sources of structural diversity reflected in proteins, such as those that arise from alternative RNA splicing events or the addition of post‐translational modifications. Tandem MS (i.e., MS/MS)
Jada N. Walker, Jennifer S. Brodbelt
wiley +1 more source
The Application of Telemedicine in Surgery
Med Research, EarlyView.This figure provides an overview of the content presented in this article. Telemedicine is integrated throughout the entire surgical workflow, with distinct applications across the preoperative, intraoperative, and postoperative phases. These applications are enabled by a suite of supporting technologies, while the associated implementation challenges ...
Yufan Yang +8 more
wiley +1 more source
Tracking the GLOMR satellite [PDF]
The task of day-to-day low orbiting satellite tracking utilizing the NAVSPASUR orbital elements is discussed and methods for improving pass time predictions are presented.
Oneil, Jason C., Reiss, Keith W.
core +1 more source
People and Nature, EarlyView.Abstract The recovery of large carnivores in Europe raises issues related to sharing landscape with humans. Beyond technical solutions, it is widely recognized that social factors also contribute to shaping coexistence. In this context, scholars increasingly stress the need to adopt place‐based approaches by analysing how humans and wildlife interact ...
Alice Ouvrier +7 more
wiley +1 more source
An Extreme Events Study of the Storm‐Time Variations in Satellite Drag Coefficients
Space WeatherThis study examines storm‐time variations in the drag coefficients CD of the GRACE and GRACE Follow‐On (FO) satellites during selected extreme geomagnetic storms—the October 2003, November 2003, November 2004, and May 2024 storms.
Soumyajit Dey +4 more
doaj +1 more source
PhotoMat, EarlyView.This paper presents a comprehensive overview of recent advancements in Joule‐heating synthesis of photo and electrocatalysts, emphasizing its benefits and applications. The objective is to offer an effective strategy for enhancing the diversity and performance of catalytic materials.
Jiaqi Li +4 more
wiley +1 more source
Variations in Satellite Charge Drag Coefficient With Solar Cycle
Space WeatherIonospheric plasma interaction with charged satellite surfaces can lead to a substantial increase in orbital drag. In this context, natural events related to solar activity can have a detrimental effect on a satellite's lifespan and introduce uncertainty
A. Fazel‐Najafabadi +2 more
doaj +1 more source