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In this paper, we describe Apollo, to the best of our knowledge, the world's first large-scale production deployment of optical circuit switches (OCSes) for datacenter networking. We will first describe the infrastructure challenges and use…

Networking and Internet Architecture · Computer Science 2022-08-23 Ryohei Urata , Hong Liu , Kevin Yasumura , Erji Mao , Jill Berger , Xiang Zhou , Cedric Lam , Roy Bannon , Darren Hutchinson , Daniel Nelson , Leon Poutievski , Arjun Singh , Joon Ong , Amin Vahdat

Organized Autotelescopes for Serendipitous Event Survey (OASES) is an optical observation project that aims to detect and investigate stellar occultation events by kilometer-sized trans-Neptunian objects (TNOs). In this project, multiple…

Instrumentation and Methods for Astrophysics · Physics 2017-09-20 Ko Arimatsu , Kohji Tsumura , Kohei Ichikawa , Fumihiko Usui , Takafumi Ootsubo , Takayuki Kotani , Yuki Sarugaku , Takehiko Wada , Koichi Nagase , Jun-ichi Watanabe

METIS, the Mid-Infrared ELT Imager and Spectrograph, is one of the four first-generation ELT instruments scheduled to see first light in 2028. Its two main science modules are supported by an adaptive optics system featuring a pyramid…

Instrumentation and Methods for Astrophysics · Physics 2023-11-23 Markus Feldt , Horst Steuer , Carlos Correia , Andreas Obereder , Stefan Raffetseder , Thomas Bertram , Julia Shatokina , Faustine Cantalloube

Tracing the formation and evolution of all supermassive black holes, including the obscured ones, understanding how black holes influence their surroundings and how matter behaves under extreme conditions, are recognized as key science…

The Planet Hunting and Asteroseismology Explorer Spectrophotometer, PHASES, is a concept for a space-borne instrument to obtain flux calibrated spectra and measure micro-magnitude photometric variations of nearby stars. The science drivers…

Instrumentation and Methods for Astrophysics · Physics 2010-01-13 Carlos del Burgo , Carlos Allende Prieto , Tully Peacocke

The number of satellites, especially those operating in low-earth orbit (LEO), is exploding in recent years. Additionally, the use of COTS hardware into those satellites enables a new paradigm of computing: orbital edge computing (OEC). OEC…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-07-11 Changhao Wu , Yuanchun Li , Mengwei Xu , Chongbin Guo , Zengshan Yin , Weiwei Gao , Chuanxiu Chi

This paper presents a novel multi-robot coverage path planning (CPP) algorithm - aka SCoPP - that provides a time-efficient solution, with workload balanced plans for each robot in a multi-robot system, based on their initial states. This…

SPECULOOS-South, an observatory composed of four independent 1m robotic telescopes, located at ESO Paranal, Chile, started scientific operation in January 2019. This Southern Hemisphere facility operates as part of SPECULOOS, an…

Autonomy at Levels is the idea that autonomy should be embedded within and throughout a spacecraft. Using Systems Engineering methods a spacecraft is typically decomposed into systems, subsystems, assemblies, components, and so on. All…

Systems and Control · Electrical Eng. & Systems 2025-08-21 Daniel Baker , Jeremy Wojcik , Sean Phillips

An air-to-ground free-space optical communication system has been designed and partially developed. The design covers both the communications between the airborne and the ground station, and the acquisition, tracking and pointing. A strong…

Instrumentation and Methods for Astrophysics · Physics 2015-07-31 Alberto Carrasco-Casado , Eva Oton , Ricardo Vergaz , Morten A. Geday , Jose M. Sanchez-Pena , Jose M. Oton

EChO is a dedicated mission to investigate exoplanetary atmospheres. When extracting the planetary signal, one has to take care of the variability of the hosting star, which introduces spectral distortion that can be mistaken as planetary…

Instrumentation and Methods for Astrophysics · Physics 2015-06-18 G. Scandariato , G. Micela

Solar Orbiter, the first mission of ESA's Cosmic Vision 2015-2025 programme and a mission of international collaboration between ESA and NASA, will explore the Sun and heliosphere from close up and out of the ecliptic plane. It was launched…

Ground-based synoptic solar observations provide critical contextual data used to model the large-scale state of the heliosphere. The next decade will see a combination of ground-based telescopes and space missions that will study our Sun's…

Pursuant to recommendations of the United Nations Conference on the Exploration and Peaceful Uses of Outer Space (UNISPACE III) and deliberations of the United Nations Committee on the Peaceful Uses of Outer Space (UNCOPUOS), annual…

Physics and Society · Physics 2009-11-11 W. Wamsteker , H. J. Haubold

Exoplanets are abundant in our galaxy and yet characterizing them remains a technical challenge. Solar System planets provide an opportunity to test the practical limitations of exoplanet observations with high signal-to-noise data that we…

Deep learning has led to many recent advances in object detection and instance segmentation, among other computer vision tasks. These advancements have led to wide application of deep learning based methods and related methodologies in…

Computer Vision and Pattern Recognition · Computer Science 2023-03-09 Chintan Tundia , Rajiv Kumar , Om Damani , G. Sivakumar

We present a principal-agent model of a one-shot, shallow, systems engineering process. The process is one-shot in the sense that decisions are made during one time step and that they are final. The term shallow refers to a one-layer…

Multiagent Systems · Computer Science 2019-03-19 Salar Safarkhani , Vikranth Reddy Kattakuri , Ilias Bilionis , Jitesh Panchal

For emerging datacenter (in short, DC) workloads, such as online Internet services or offline data analytics, how to evaluate the upper bound performance and provide apple-to-apple comparisons are fundamental problems. To this end, a…

Performance · Computer Science 2019-11-11 Lei Wang , Jianfeng Zhan , Wanling Gao , KaiYong Yang , ZiHan Jiang , Rui Ren , Xiwen He , Chunjie Luo

PLAnetary Transits and Oscillations of stars (PLATO) is an ESA M-class mission to be launched by the end of 2026 to discover and characterize transiting planets around bright and nearby stars, and in particular habitable rocky planets…

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