Results 41 to 50 of about 202,602 (307)

Study on the Feasibility and Performance Evaluation of High-Orbit Spacecraft Orbit Determination Based on GNSS/SLR/VLBI

open access: yesRemote Sensing
Deep space exploration utilizing high-orbit vehicles is a vital approach for extending beyond near-Earth space, with orbit information serving as the foundation for all functional capabilities.
Zhengcheng Wu   +4 more
doaj   +1 more source

Orbit Determination for All-Electric GEO Satellites Based on Space-Borne GNSS Measurements

open access: yesRemote Sensing, 2022
Orbit accuracy of the transfer orbit and the mission orbit is the basis for the orbit control of all-electric-propulsion Geostationary Orbit (GEO) satellites.
Wenqiang Lu   +3 more
doaj   +1 more source

Prevalence and Trajectory of Household Material Hardship Among Children With Advanced Cancer

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background/Objectives Families of children with advanced cancer living in poverty experience inferior outcomes including poor parent mental health and worse child quality of life. Household material hardship (HMH: food, housing, transportation, and/or utility insecurity) is a modifiable poverty exposure—and potential intervention target—that ...
Sarah Wright   +13 more
wiley   +1 more source

‘They Need to Hear You Say It’: Healthcare Professionals’ Perspectives on Barriers and Enablers to End‐of‐Life Discussions With Adolescents and Young Adults With Cancer

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT End‐of‐life conversations with adolescents and young adults (AYAs) with cancer rarely occur without the guidance of healthcare professionals. As a part of the ‘Difficult Discussions’ study, focused on palliative care and advance care planning discussions with AYAs with cancer, we investigated the factors that healthcare professionals identify ...
Justine Lee   +9 more
wiley   +1 more source

Assessment of Swarm Kinematic Orbit Determination Using Two Different Double-Difference Methods

open access: yesRemote Sensing, 2023
The Swarm mission aims to study the principle and change regularities of the Earth’s magnetic field. Precise orbit determination is essential to the successful implementation of the mission and relevant scientific research.
Rui Zhang   +5 more
doaj   +1 more source

Development Strategy of Orbit Determination System for Korea’s Lunar Mission: Lessons from ESA, JAXA, ISRO and CNSA’s Experiences [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2014
In this paper, a brief but essential development strategy for the lunar orbit determination system is discussed to prepare for the future Korea’s lunar missions.
Young-Joo Song, Sang-il Ahn, Eun-Sup Sim
doaj   +1 more source

An Improved Range-Searching Initial Orbit-Determination Method and Correlation of Optical Observations for Space Debris

open access: yesApplied Sciences, 2023
The Changchun Observatory of the National Astronomical Observatories, Chinese Academy of Sciences, and the Shanghai Astronomical Observatory are used to generate very short arc (VSA) angle observations of objects in low Earth orbit (LEO) and ...
Xiangxu Lei   +8 more
doaj   +1 more source

First In-orbit Experience of TerraSAR-X Flight Dynamics Operations [PDF]

open access: yes, 2007
TerraSAR-X is an advanced synthetic aperture radar satellite system for scientific and commercial applications that is realized in a public-private partnership between the German Aerospace Center (DLR) and the Astrium GmbH.
D'Amico, Simone   +5 more
core  

A geometric model for Hochschild homology of Soergel bimodules

open access: yes, 2007
An important step in the calculation of the triply graded link homology theory of Khovanov and Rozansky is the determination of the Hochschild homology of Soergel bimodules for SL(n).
Akyıldız   +5 more
core   +3 more sources

Feasibility and Preliminary Efficacy of Integrative Neuromuscular Training for Childhood Cancer Survivors: A Pilot Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Survivors of childhood acute lymphoblastic leukemia (ALL) often exhibit early deficits in muscle and movement competence, which can compromise long‐term health. Integrative neuromuscular training (INT), a multifaceted approach combining fundamental movement activities with strength exercises, may help address these deficits during ...
Anna Maria Markarian   +7 more
wiley   +1 more source

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