Searched for: subject%3A%22star%22
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Roos, Matthijs (author)
To better understand the formation of stars in dusty star-forming galaxies (DSFGs), and the evolution of this type of submillimeter galaxies (SMGs), it is of high significance to perform submillimeter/far-infrared surveys. The Deep Spectroscopic High-redshift Mapper 2.0 (DESHIMA2.0) on the ASTE telescope in Chile has been designed to observe the...
bachelor thesis 2023
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Hallie, Aileen (author)
Light can be a wonderful thing. It allows one to see in the dark. Since the development of lamps, the intention has been to eliminate darkness from the night, as darkness is associated with danger, demons, the unknown, and all sorts of ‘scary’ things that lurk in the dark. Although light is helpful, dark nights are also needed. Not only did...
master thesis 2023
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Sans-Planell, O. (author), Cantini, F. (author), Costa, M. (author), Durisi, E. (author), Grazzi, F. (author), Mafucci, E. (author), Monti, V. (author), Bedogni, R. (author), Li, Y. (author), van Eijck, L. (author)
The ANET project aims at developing 2D compact neutron collimators for neutron imaging applications. The results of the ANET collimator performances, presented in this communication, are based on data collected at the FISH beamline at TU-Delft. Two independent methods to evaluate the neutron radiography resolution are described and discussed,...
journal article 2023
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De Ridder, J. (author), Ripepi, V. (author), Aerts, C. (author), Palaversa, L. (author), Eyer, L. (author), Holl, B. (author), Audard, M. (author), Rimoldini, L. (author), Hladczuk, N.A. (author)
Context. The third Gaia data release provides photometric time series covering 34 months for about 10 million stars. For many of those stars, a characterisation in Fourier space and their variability classification are also provided. This paper focuses on intermediate- to high-mass (IHM) main sequence pulsators (M'a ¥''1.3'M') of spectral...
journal article 2023
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Creevey, O. L. (author), Sarro, L. M. (author), Lobel, A. (author), Pancino, E. (author), Harrison, D. L. (author), Garofalo, A. (author), Brown, A. G.A. (author), de Bruijne, J. H.J. (author), Hladczuk, N.A. (author)
Context.Gaia Data Release 3 (DR3) provides a wealth of new data products for the astronomical community to exploit, including astrophysical parameters for half a billion stars. In this work, we demonstrate the high quality of these data products and illustrate their use in different astrophysical contexts. Aims. We produce homogeneous samples...
journal article 2023
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De Ridder, J. (author), Ripepi, V. (author), Aerts, C. (author), Palaversa, L. (author), Eyer, L. (author), Holl, B. (author), Audard, M. (author), Rimoldini, L. (author), Hladczuk, N.A. (author)
Context. The Gaia DR3 catalogue contains, for the first time, about 800 000 solutions with either orbital elements or trend parameters for astrometric, spectroscopic, and eclipsing binaries, and combinations of these three.<br/><br/>Aims. With this paper, we aim to illustrate the huge potential of this large non-single-star catalogue.<br/><br/...
journal article 2023
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Tešić, Milan (author), Miladić-Tešić, Suzana (author), Folla, Katerina (author), Yannis, George (author), Oviedo-Trespalacios, O. (author)
Driver behavior is a key determinant of road safety. Risky behaviors can be measured and quantified using traditional and modern methods, which enables the assessment of the driver's behavior. Following lessons from safety science, it is important to analyse and manage risks factors to optimize interventions in the transport context at the...
journal article 2023
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Casini, S. (author), Cervone, A. (author), Monna, G.L.E. (author), Gill, E.K.A. (author)
Line-of-Sight (LoS) navigation is an optical navigation technique that exploits the direction to visible celestial bodies, obtained from an onboard imaging system, to estimate the position and velocity of a spacecraft. The directions are fed to an estimation filter, where they are matched with the actual position of the observed bodies,...
journal article 2023
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Fuente, A. (author), Rivière-Marichalar, P. (author), Beitia-Antero, L. (author), Caselli, P. (author), Wakelam, V. (author), Esplugues, G. (author), Rodríguez-Baras, M. (author), Navarro-Almaida, D. (author), Cazaux, S.M. (author)
Context. Gas phase Elemental abundances in molecular CloudS (GEMS) is an IRAM 30-m Large Program aimed at determining the elemental abundances of carbon (C), oxygen (O), nitrogen (N), and sulfur (S) in a selected set of prototypical star-forming filaments. In particular, the elemental abundance of S remains uncertain by several orders of...
journal article 2023
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van Oorschot, Marijn (author)
Spacecraft navigation and control is difficult in deep space operations. Especially around asteroids, the irregular gravity field increases the difficulty of estimating the spacecraft trajectory. Autonomous navigation can increase the safety and accuracy for orbit proximity operations. Furthermore, it eliminates the need for continuous...
master thesis 2022
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Sfikas, Konstantinos (author)
On May 22, 2018, the Gravity Recovery and Climate Experiment Follow On (GRACE-FO) mission was launched with the goal to map the spatiotemporal variations in the Earth's gravity field and to extend the 15-year monthly mass change observations of its predecessor, the GRACE mission. Similarly to GRACE, the measurement principle of GRACE-FO is based...
master thesis 2022
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Junge, Kai (author), Obayashi, Nana (author), Stella, F. (author), Della Santina, C. (author), Hughes, Josie (author)
Biology provides many examples of how body adaption can be used to achieve a change in functionality. The feather star, an underwater crinoid that uses feather arms to locomote and feed, is one such system; it releases its arms to distract prey and vary its maneuverability to help escape predators. Using this crinoid as inspiration, we develop a...
journal article 2022
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Rybak, M. (author), Hodges, JA (author), Greve3, T. R. (author), Riechers, D. (author), Lamperti, I. (author), van Marrewijk, J. (author), Walter, F. (author), Wagg, J. (author), van der Werf, P. P. (author)
Dusty star-forming galaxies (DSFGs) at redshift z ≥ 1 are among the most vigorously star-forming galaxies in the Universe. However, their dense (≥10 <sup>5</sup>cm <sup>-3</sup>) gas phase - typically traced by HCN(1-0) - remains almost entirely unexplored: only two DSFGs have been detected in HCN(1-0) to date. We present the results of a...
journal article 2022
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He, Zhibo (author), Liu, Chenguang (author), Chu, Xiumin (author), Negenborn, R.R. (author), Wu, Qing (author)
For the complex multi-ship encounter scenarios, this article proposes a dynamic collision avoidance path planning algorithm based on the A-star algorithm and ship navigation rules, namely Dynamic Anti-collision A-star (DAA-star) algorithm. A dynamic search mechanism of the DAA-star algorithm considering time factors is designed to enable the...
journal article 2022
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Yang, Jun (author), Chen, Yongjun (author), Gurvits, L. (author), Paragi, Zsolt (author), Yang, Aiyuan (author), Yang, Xiaolong (author), Shen, Zhiqiang (author)
In the time domain, the radio sky in particular along the Galactic plane direction may vary significantly because of various energetic activities associated with stars, stellar, and supermassive black holes. Multi-epoch Very Large Array surveys of the Galactic plane at 5.0 GHz enabled the finding of a catalogue of 39 variable radio sources in...
journal article 2022
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Ganguly, Auroop R. (author), van Breukelen, B.M. (author), Evers, Mariele (author), Hendricks Franssen, Harrie Jan (author), Illangasekare, Tissa (author), Kumar, Praveen (author), Steefel, Carl (author), Taylor, Richard G. (author)
contribution to periodical 2022
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Yu, G. (author)
Creating a gas-liquid foam means dispersing gas as individual bubbles in an aqueous solution, in which each gas bubble is separated by liquid films or lamella. The most common form of liquid foam (as opposed to solid foams, like polymer sponges) seen in day-to-day life is bulk foam. This refers to a foam that rests in a large container (or flows...
doctoral thesis 2021
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Hussain, Mohammed Muaaz (author)
The advent of global warming has brought an increased interest in non-conventional sources of energy, one of which is nuclear energy. Threatening the almost year-round functioning of nuclear power plants are Flow-Induced Vibrations (FIV). One such mechanism, Vortex-Induced Vibration (VIV), holds importance in areas of cross flow in nuclear power...
master thesis 2021
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de Jong, Jaap (author)
For the Multi-Agent Pathfinding (MAPF) problem, a set of non-colliding paths must be found for multiple agents. In Multi-Agent Pathfinding with Matching (MAPFM), this problem is extended: agents and goals are added to a team and each agent has to navigate to a goal that belongs to the same team. In this paper, two extensions of the EPEA* MAPF...
bachelor thesis 2021
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de Bruin, Ivar (author)
This paper extends the Multi-Agent Pathfinding (MAPF) algorithm, A*+ID+OD, to be able to solve problems with matching. This extension still keeps the optimal and completeness properties of the original algorithm. Matching is added to the algorithm in both an exhaustive and heuristic manner. Exhaustive matching is further improved by adding a new...
bachelor thesis 2021
Searched for: subject%3A%22star%22
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