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The observational evidence for the acceleration of the universe demonstrates that canonical theories of cosmology and particle physics are incomplete, if not incorrect. Several few-sigma hints of new physics, discussed in this workshop, are…

Cosmology and Nongalactic Astrophysics · Physics 2013-10-01 P. O. J. Pedrosa , A. C. O. Leite , C. J. A. P. Martins

We present a novel technique to overcome the limitations of the applicability of Principal Component Analysis to typical real-life data sets, especially astronomical spectra. Our new approach addresses the issues of outliers, missing…

Astrophysics · Physics 2009-11-13 Tamas Budavari , Vivienne Wild , Alexander S. Szalay , Laszlo Dobos , Ching-Wa Yip

Distributed acoustic sensing (DAS) technology represents an innovative fiber-optic-based sensing methodology that enables real-time acoustic signal monitoring through the detection of minute perturbations along optical fibers. This sensing…

Audio and Speech Processing · Electrical Eng. & Systems 2025-03-27 Shuaikai Shi , Qijun Zong

An extensive service-based software system has been developed for real-time data acquisition (DAQ) on numerous subsystems of the Advanced Photon Source (APS) accelerator. The software, called DAQ, is based upon EPICS 3 Area-Detector with…

Instrumentation and Detectors · Physics 2019-10-18 T. Madden , N. Arnold , T. Berenc , E. Breeding , T. Fors , G. Shen , S. Veseli , Y. Yang , K. Vodopivec , W. Yoder

We rigorously assess the potential for extracting high-resolution, multi-mode surface wave dispersion data from distributed acoustic sensing (DAS) measurements using active-source multichannel analysis of surface waves (MASW). We have…

Geophysics · Physics 2022-08-31 Joseph P. Vantassel , Brady R. Cox , Peter G. Hubbard , Michael Yust

CODEX, a high resolution, super-stable spectrograph to be fed by the E-ELT, the most powerful telescope ever conceived, will for the first time provide the possibility of directly measuring the change of the expansion rate of the Universe…

Commercial flatbed scanners have the potential to deliver a quick and efficient means of capturing the scientific content of spectra recorded on photographic plates. We discuss the digitization of selected spectra in the Dominion…

Instrumentation and Methods for Astrophysics · Physics 2024-05-03 T. J. Davidge

This paper describes the design and development of low cost USB Data Acquisition System (DAS) for the measurement of physical parameters. Physical parameters such as temperature, humidity, light intensity etc., which are generally slowly…

Hardware Architecture · Computer Science 2012-07-10 Nungleppam Monoranjan Singh , Kanak Chandra Sarma , Nungleppam Gopil Singh

Temperature-accelerated sliced sampling (TASS) is a well-established enhanced sampling method that facilitates exhaustive exploration of high-dimensional collective variable (CV) space through directed sampling employing a combination of…

Chemical Physics · Physics 2025-09-08 Sameer Saurav , Debjit Das , Ramsha Javed , Nisanth N. Nair

In this paper, we study data-aided sensing (DAS) for a system consisting of a base station (BS) and a number of nodes, where the BS becomes a receiver that collects measurements or data sets from the nodes that are distributed over a cell.…

Information Theory · Computer Science 2019-12-09 Jinho Choi

Extensive monitoring of acoustic activities is important for many fields, including biology, security, oceanography, and Earth science. Distributed acoustic sensing (DAS) is an evolving technique for continuous, wide-coverage measurements…

Geophysics · Physics 2025-08-27 Angeliki Xenaki , Peter Gerstoft , Ethan Williams , Shima Abadi

LARS is an Absolute Reference Spectrograph designed for ultra-precise solar observations. The high-resolution echelle spectrograph of the Vacuum Tower Telescope is supported by a state-of-the-art laser frequency comb to calibrate the solar…

Instrumentation and Methods for Astrophysics · Physics 2017-11-01 J. Loehner-Boettcher , W. Schmidt , H. -P. Doerr , T. Kentischer , T. Steinmetz , R. A. Probst , R. Holzwarth

Nowadays, many scientific areas share the same need of being able to deal with massive and distributed datasets and to perform on them complex knowledge extraction tasks. This simple consideration is behind the international efforts to…

CHARIS is an IFS designed for imaging and spectroscopy of disks and sub-stellar companions. To improve ease of use and efficiency of science production, we present progress on a fully-automated backend for CHARIS. This Automated Data…

Instrumentation and Methods for Astrophysics · Physics 2020-12-21 Taylor L. Tobin , Jeffery Chilcote , Timothy Brandt , Thayne Currie , Tyler Groff , Julien Lozi , Olivier Guyon

Attosecond transient absorption spectroscopy (ATAS) has emerged as a powerful technique within the field of attosecond science, combining extremely high temporal and excellent spectral resolution. So far, ATAS has been implemented in…

Diffusing wave spectroscopy (DWS) can be employed as an optical rheology tool with numerous applications for studying the structure, dynamics and linear viscoelastic properties of complex fluids, foams, glasses and gels. To carry out DWS…

Soft Condensed Matter · Physics 2018-11-06 Chi Zhang , Mathias Reufer , Danila Gaudino , Frank Scheffold

The World Space Observatory - Ultraviolet (WSO-UV) space telescope is equipped with high dispersion (55,000) spectrographs working in the 1150-3100 {\AA} spectral range. To evaluate the impact of the design on the scientific objectives of…

Instrumentation and Methods for Astrophysics · Physics 2017-06-13 Pablo Marcos-Arenal , Ana I. Gómez de Castro , Belén Perea Abarca , Mikhail Sachkov

We present here CAFE, the Calar Alto Fiber-fed Echelle spectrograph, a new instrument built at the Centro Astronomico Hispano Alem\'an (CAHA). CAFE is a single fiber, high-resolution ($R\sim$70000) spectrograph, covering the wavelength…

Instrumentation and Methods for Astrophysics · Physics 2015-06-12 J. Aceituno , S. F. Sanchez , F. Grupp , J. Lillo , M. Hernan-Obispo , D. Benitez , L. M. Montoya , U. Thiele , S. Pedraz , D. Barrado , S. Dreizler , J. Bean

Exploring and understanding ultrafast processes at the atomic level is a scientific challenge. Femtosecond X-ray Absorption Spectroscopy (XAS) is an essential experimental probing technic, as it can simultaneously reveal both electronic and…

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