Results 31 to 40 of about 4,102,696 (283)
Analytical Solution to relative dynamic of gravity tractors in Formation Flying in Asteroid Deflection Mission [PDF]
فصلنامه علوم و فناوری فضایی, 2019 In this paper, an analytical solution to deflection mission of asteroid as potentially hazardous spatial mass that threat humanity in future is investigated . The mission of deflecting potentially hazardous asteroids in recently years with possibility of
Javad Shams, Jafar Roshanian
doaj
Hardware-in-the-Loop Simulation for Spacecraft Formation Flying
Journal of Control Science and Engineering, 2010 This paper presents a hardware-in-the-loop (HITL) simulation approach for multiple spacecraft formation flying. Considering a leader-follower formation flying configuration, a Fuzzy Logic controller is developed first to maintain the desired formation ...
Jinjun Shan, Piotr Wenderski
doaj +1 more source
Determination of Initial Conditions for Satellite Formation Flying in Elliptical Orbits [PDF]
Journal of Astronomy and Space Sciences, 2005 The initial conditions that generate bounded motion in eccentric reference orbit are determined for satellite formation flying. Because Hill's equations cannot describe the relative motion between two satellites in eccentric orbit, a new relative ...
Woo-Kyoung Lee +4 more
doaj +1 more source
AIP Advances, 2023 The purpose of this study is to evaluate the jamming effectiveness evaluation against monopulse radar when using a non-coherent blinking jamming model at regular intervals based on three aircraft flight trajectories. To begin, the formation trajectory is
Zhaozheng Liu +4 more
doaj +1 more source
FEBS Letters, EarlyView.Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes +4 more
wiley +1 more source
Applied Sciences, 2022 This paper investigates the issues of iterative learning algorithm-based robust thruster fault reconstruction and reconfigurable fault-tolerant control for spacecraft formation flying systems subject to space perturbations.
Yule Gui +3 more
doaj +1 more source
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
The Precision Validation of the Precise Baseline Determination for Satellite Formation [PDF]
Journal of Astronomy and Space Sciences, 2011 The needs for satellite formation flying are gradually increasing to perform the advanced space missions in remote sensing and observation of the space or Earth.
Jong-Yeoun Choi, Sang-Jeong Lee
doaj +1 more source
FEBS Letters, EarlyView.Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura +2 more
wiley +1 more source
Drones, 2022 This paper studies the robust formation flying problem for a swarm of drones, which are modeled as uncertain second order systems. By making use of minimal virtual leader information, a fully distributed robust control scheme is proposed, which includes ...
Huanli Gao, Wei Li, He Cai
doaj +1 more source