Results 31 to 40 of about 6,641,291 (286)

Space Debris Detection and Tracking with the Techniques of Cosmic Ray Physics [PDF]

Proceedings of 36th International Cosmic Ray Conference — PoS(ICRC2019), 2019
Space Debris (SD) consist of non-operational artificial objects orbiting around the Earth, which could possibly damage space vehicles, such as the International Space Station (ISS) or other manned spacecrafts. The vast majority of such objects are cm-sized, not catalogued and usually the tracking data are not precise enough.
Miyamoto H., Battisti M., Belov A., Bertaina M. E., Bisconti F., Bonino R., Blin-Bondil S., Cafagna F., Cambie G., Capel F., Casolino M., Cellino A., Churilo I., Cotto G., Djakonow A., Ebisuzaki T., Fausti F., Fenu F., Fornaro C., Franceschi A., Fuglesang C., Gardiol D., Gorodetzky P., Kajino F., Klimov P., Marcelli L., Marszal W., Mignone M., Murashov A., Napolitano T., Osteria G., Panasyuk M., Parizot E., Poroshin A., Picozza P., Piotrowski L. W., Plebaniak Z., Prevot G., Przybylak M., Reali E., Ricci M., Sakaki N., Shinozaki K., Suino G., Szabelski J., Takizawa Y., Traiche M., Turriziani S.   +47 more
openaire   +3 more sources

Reference Scenario and Target Identification for Autonomous Active Space Debris Removal Methods [PDF]

, 2013
To alleviate the threat of space debris, a combination of debris mitigation measures and debris environment re- mediation techniques with regard to long-term environ- ment stability is required.
Förstner, Roger, Weigel, Martin, Peters, Susanne, Fiedler, Hauke   +3 more
core  

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Effect Analysis of Optical Masking Algorithm for GEO Space Debris Detection

International Journal of Optics, 2019
A method with high detection rate, low false-alarm rate, and low computational cost is presented for removing stars and noise and detecting space debris with signal-to-noise ratio (SNR>3) in consecutive raw frames.
Sijie Kong, Jin Zhou, Wenli Ma
doaj   +1 more source

The fast debris evolution model [PDF]

, 2008
The ‘Particles-in-a-box’ (PIB) model introduced by Talent (1992) removed the need for computer-intensive Monte Carlo simulation to predict the gross characteristics of an evolving debris environment.
G.G. Swinerd, R.J. Newland, Lewis, H.G., Newland, R.J., Swinerd, G.G., H.G. Lewis, Saunders, A., A. Saunders   +7 more
core   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei, Fredrik Orädd, Konstantinos Magkakis, Magnus Andersson   +3 more
wiley   +1 more source

Laser based observation of space debris: Taking benefits from the fundamental wave [PDF]

, 2013
After the successful experimental demonstration of the prior published concept on laser-based monitoring of space debris in early 2012, we will present further technological and conceptual advancements of this position sensing scheme.
Hampf, Daniel, Giesen, Adolf, Buske, Ivo, Riede, Wolfgang, Friederich, Fabian, Völker, Uwe   +5 more
core  

Structural studies and functional engineering of NanX: an anhydro‐sialic acid transporter from Escherichia coli

FEBS Open Bio, EarlyView.
Biophysical characterisation shows that NanX, a membrane transport protein from the major facilitator superfamily (MFS), forms both monomers and dimers after purification. AlphaFold modelling and substrate docking provide information on residues likely involved in substrate recognition for NanX and another MFS member, NanT.
Michael C. Newton‐Vesty, Kelsi R. Hall, Zachary D. Tillett, Liam S. Turk, James S. Davies, Michael J. Currie, Hamish G. Brown, Sepideh Valimehr, Peter D. Mace, Andrew E. Whitten, Santosh Panjikar, Eric Hanssen, Rachel A. North, Renwick C.J. Dobson   +13 more
wiley   +1 more source

Enhanced YOLOv8-based method for space debris detection using cross-scale feature fusion

Discover Applied Sciences
Optical observations play a crucial role in monitoring space debris, and long exposure large field-of-view telescopes exhibit robust detection capabilities for identifying space debris.
Yang Guo, Xianlong Yin, Yao Xiao, Zhengxu Zhao, Xu Yang, Chenggang Dai   +5 more
doaj   +1 more source

Design of Low-Cost Simulation Space Micro Debris Launch Device

Aerospace
The high cost and low emission frequency of microparticle launchers have resulted in a long lead time for the development of detectors for micro-debris in space.
Renjie Yang, Kai Tang, Xuqiang Lang, Cheng He, Yu Liu, Yue Liu   +5 more
doaj   +1 more source