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With the mass construction of Gen III nuclear reactors, it is a popular trend to use deep learning (DL) techniques for fast and effective diagnosis of possible accidents. To overcome the common problems of previous work in diagnosing…

Signal Processing · Electrical Eng. & Systems 2022-09-26 Chengyuan Li , Zhifang Qiu , Zhangrui Yan , Meifu Li

The Low Frequency Instrument (LFI) is a radiometer array covering the 30-70 GHz spectral range on-board the ESA Planck satellite, launched on May 14th, 2009 to observe the cosmic microwave background (CMB) with unprecedented precision. In…

LISA PathFinder (LPF) will be flown with the objective to test in space key technologies for LISA. However its sensitivity goals are, for good reason, one order of magnitude less than those which LISA will have to meet, both in drag-free…

Programmable electron-beam scanning offers new opportunities to improve dose efficiency and suppress scan-induced artifacts in scanning transmission electron microscopy. Here, we systematically benchmark the impact of non-raster…

Cosmic-ray air shower detection with the low-frequency part of the Square Kilometre Array (SKA) radio telescope is envisioned to yield very high precision measurements of the particle composition of cosmic rays between $10^{16}$ and…

High Energy Astrophysical Phenomena · Physics 2025-06-24 A. Corstanje , S. Buitink , S. Bouma , M. Desmet , J. R. Hörandel , T. Huege , P. Laub , K. Mulrey , A. Nelles , O. Scholten , K. Terveer , S. Thoudam , K. Watanabe

Contamination due to foregrounds (Galactic and Extra-galactic), calibration errors and ionospheric effects pose major challenges in detection of the cosmic 21 cm signal in various Epoch of Reionization (EoR) experiments. We present the…

Instrumentation and Methods for Astrophysics · Physics 2018-05-15 B. K. Gehlot , L. V. E. Koopmans , A. G. de Bruyn , S. Zaroubi , M. A. Brentjens , K. M. B. Asad , M. Hatef , V. Jelic , M. Mevius , A. R. Offringa , V. N. Pandey , S. Yatawatta

We are in the golden age for the search for high-redshift galaxies, made possible by a combination of new instruments and innovative search techniques. One of the major aims of such searches is to constrain the epoch of reionization (EoR),…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-17 Pratika Dayal

As mobile robot capabilities improve and deployment times increase, tools to analyze the growing volume of data are becoming necessary. Current state-of-the-art logging, playback, and exploration systems are insufficient for practitioners…

Robotics · Computer Science 2020-08-03 Samer B. Nashed

We are developing the Precision Array for Probing the Epoch of Reionization (PAPER) to detect 21cm emission from the early Universe, when the first stars and galaxies were forming. We describe the overall experiment strategy and…

We perform a Fisher analysis to estimate the expected constraints on the Epoch of Reionization (EoR) model parameters (i.e., minimum virial temperature, the ionizing efficiency and the mean free path of ionizing photons) taking into account…

Cosmology and Nongalactic Astrophysics · Physics 2017-04-04 Hayato Shimabukuro , Shintaro Yoshiura , Keitaro Takahashi , Shuichiro Yokoyama , Kiyotomo Ichiki

Low-dose computed tomography (LDCT) reduces patient radiation exposure but introduces substantial noise that degrades image quality and hinders diagnostic accuracy. Existing denoising approaches often require many diffusion steps, limiting…

Medical Physics · Physics 2025-10-29 Qiang Li , Mojtaba Safari , Shansong Wang , Huiqiao Xie , Jie Ding , Tonghe Wang , Xiaofeng Yang

Recent work has successfully achieved sub-arcsecond wide-field imaging with high-band observations from the Low Frequency Array (LOFAR). However, the scalability of this work remains limited due to the need for manual intervention, poor…

Interpreting 21cm measurements from current and upcoming experiments like HERA and the SKA will provide new scientific insights and exciting implications for astrophysics and cosmology regarding the Epoch of Reionization (EoR). Several…

Cosmology and Nongalactic Astrophysics · Physics 2022-05-03 Yihao Zhou , Paul La Plante

Modern radio interferometers such as the LOw Frequency ARray (LOFAR) are capable of producing data at hundreds of gigabits to terabits per second. This high data rate makes the analysis of radio data cumbersome and computationally…

Direct detection of regions of ionized hydrogen (HII) has been suggested as a promising probe of cosmic reionization. Observing the redshifted 21-cm signal of hydrogen from the epoch of reionization (EoR) is a key scientific driver behind…

Cosmology and Nongalactic Astrophysics · Physics 2017-09-20 Paul M. Geil , Simon J. Mutch , Gregory B. Poole , Alan R. Duffy , Andrei Mesinger , J. Stuart B. Wyithe

The redshifted 21 cm signal from the cosmic dawn and Epoch of Reionization (EoR) encodes important information about both astrophysical processes and primordial physics, such as inflation. In this work, we use morphological statistics to…

Cosmology and Nongalactic Astrophysics · Physics 2026-01-28 Kanan Virkar , Suvedha Suresh Naik , Pravabati Chingangbam

Using a Bayesian framework, we quantify what current observations imply about the history of the epoch of reionisation (EoR). We use a popular, three-parameter EoR model, flexible enough to accommodate a wide range of physically-plausible…

Cosmology and Nongalactic Astrophysics · Physics 2018-03-01 Bradley Greig , Andrei Mesinger

The Epoch of Reionization (EoR) depends on the complex astrophysics governing the birth and evolution of the first galaxies and structures in the intergalactic medium. EoR models rely on cosmic microwave background (CMB) observations, and…

Cosmology and Nongalactic Astrophysics · Physics 2020-09-30 Yuxiang Qin , Vivian Poulin , Andrei Mesinger , Bradley Greig , Steven Murray , Jaehong Park

Next generation radio experiments such as LOFAR, HERA and SKA are expected to probe the Epoch of Reionization and claim a first direct detection of the cosmic 21cm signal within the next decade. Data volumes will be enormous and can thus…

Cosmology and Nongalactic Astrophysics · Physics 2018-01-03 Claude J Schmit , Jonathan R Pritchard

LOFAR, the LOw-Frequency ARray, is a new-generation radio interferometer constructed in the north of the Netherlands and across europe. Utilizing a novel phased-array design, LOFAR covers the largely unexplored low-frequency range from…

Instrumentation and Methods for Astrophysics · Physics 2015-06-15 M. P. van Haarlem , M. W. Wise , A. W. Gunst , G. Heald , J. P. McKean , J. W. T. Hessels , A. G. de Bruyn , R. Nijboer , J. Swinbank , R. Fallows , M. Brentjens , A. Nelles , R. Beck , H. Falcke , R. Fender , J. Hörandel , L. V. E. Koopmans , G. Mann , G. Miley , H. Röttgering , B. W. Stappers , R. A. M. J. Wijers , S. Zaroubi , M. van den Akker , A. Alexov , J. Anderson , K. Anderson , A. van Ardenne , M. Arts , A. Asgekar , I. M. Avruch , F. Batejat , L. Bähren , M. E. Bell , M. R. Bell , I. van Bemmel , P. Bennema , M. J. Bentum , G. Bernardi , P. Best , L. Bîrzan , A. Bonafede , A. -J. Boonstra , R. Braun , J. Bregman , F. Breitling , R. H. van de Brink , J. Broderick , P. C. Broekema , W. N. Brouw , M. Brüggen , H. R. Butcher , W. van Cappellen , B. Ciardi , T. Coenen , J. Conway , A. Coolen , A. Corstanje , S. Damstra , O. Davies , A. T. Deller , R. -J. Dettmar , G. van Diepen , K. Dijkstra , P. Donker , A. Doorduin , J. Dromer , M. Drost , A. van Duin , J. Eislöffel , J. van Enst , C. Ferrari , W. Frieswijk , H. Gankema , M. A. Garrett , F. de Gasperin , M. Gerbers , E. de Geus , J. -M. Grießmeier , T. Grit , P. Gruppen , J. P. Hamaker , T. Hassall , M. Hoeft , H. Holties , A. Horneffer , A. van der Horst , A. van Houwelingen , A. Huijgen , M. Iacobelli , H. Intema , N. Jackson , V. Jelic , A. de Jong , E. Juette , D. Kant , A. Karastergiou , A. Koers , H. Kollen , V. I. Kondratiev , E. Kooistra , Y. Koopman , A. Koster , M. Kuniyoshi , M. Kramer , G. Kuper , P. Lambropoulos , C. Law , J. van Leeuwen , J. Lemaitre , M. Loose , P. Maat , G. Macario , S. Markoff , J. Masters , D. McKay-Bukowski , H. Meijering , H. Meulman , M. Mevius , E. Middelberg , R. Millenaar , J. C. A. Miller-Jones , R. N. Mohan , J. D. Mol , J. Morawietz , R. Morganti , D. D. Mulcahy , E. Mulder , H. Munk , L. Nieuwenhuis , R. van Nieuwpoort , J. E. Noordam , M. Norden , A. Noutsos , A. R. Offringa , H. Olofsson , A. Omar , E. Orrú , R. Overeem , H. Paas , M. Pandey-Pommier , V. N. Pandey , R. Pizzo , A. Polatidis , D. Rafferty , S. Rawlings , W. Reich , J. -P. de Reijer , J. Reitsma , A. Renting , P. Riemers , E. Rol , J. W. Romein , J. Roosjen , M. Ruiter , A. Scaife , K. van der Schaaf , B. Scheers , P. Schellart , A. Schoenmakers , G. Schoonderbeek , M. Serylak , A. Shulevski , J. Sluman , O. Smirnov , C. Sobey , H. Spreeuw , M. Steinmetz , C. G. M. Sterks , H. -J. Stiepel , K. Stuurwold , M. Tagger , Y. Tang , C. Tasse , I. Thomas , S. Thoudam , M. C. Toribio , B. van der Tol , O. Usov , M. van Veelen , A. -J. van der Veen , S. ter Veen , J. P. W. Verbiest , R. Vermeulen , N. Vermaas , C. Vocks , C. Vogt , M. de Vos , E. van der Wal , R. van Weeren , H. Weggemans , P. Weltevrede , S. White , S. J. Wijnholds , T. Wilhelmsson , O. Wucknitz , S. Yatawatta , P. Zarka , A. Zensus , J. van Zwieten
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