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200 papers

We present a description of the new complex installation for the study of extensive air showers which was created at the Tien Shan mountain cosmic ray station, as well as the results of the test measurements made there in 2014-2016. At…

A composition analysis of KASCADE air shower data is performed by means of unfolding the two-dimensional frequency spectrum of electron and muon numbers. Aim of the analysis is the determination of energy spectra for elemental groups…

Astrophysics · Physics 2008-11-26 KASCADE Collaboration , T. Antoni

The detailed simulation of extended air showers (EAS) and their emission of Cherenkov and fluorescence light requires increasing computation time and storage volume with increasing energy of the primary particle. Given these limitations, it…

Instrumentation and Methods for Astrophysics · Physics 2023-07-28 Ali Baktash , Dieter Horns

This paper is an introduction to the jet schemes and the arc space of an algebraic variety. We also introduce the Nash problem on arc families.

Algebraic Geometry · Mathematics 2007-05-23 Shihoko Ishii

A novel framework is proposed for the deployment and passive beamforming design of a reconfigurable intelligent surface (RIS) with the aid of non-orthogonal multiple access (NOMA) technology. The problem of joint deployment, phase shift…

Signal Processing · Electrical Eng. & Systems 2020-01-29 Xiao Liu , Yuanwei Liu , Yue Chen , H. Vincent Poor

Horizon-T is an innovative detector system constructed to study Extensive Air Showers (EAS) in the energy range above 10^16 eV coming from a wide range of zenith angles (0 - 85 degrees). The system is located at Tien Shan high-altitude…

The KASCADE experiment measures extensive air showers induced by cosmic rays in the energy range around the so-called knee. The data of KASCADE have been used in a composition analysis showing the knee at 3-5 PeV to be caused by a…

Astrophysics · Physics 2014-11-18 KASCADE Collaboration , W. D. Apel

We recall the PFS model constructed for the modeling of unsteady mixed flows in closed water pipes where transition points between the free surface and pressurized flow are treated as a free boundary associated to a discontinuity of the…

Analysis of PDEs · Mathematics 2013-09-26 Christian Bourdarias , Mehmet Ersoy , Stéphane Gerbi

We define a class of flows with exponential kinematics termed Periodic Exponential Shear (PES) flow which involve periodic exponential stretching of fluid elements along with their rotation. We exhibit analytical and numerical results for…

Soft Condensed Matter · Physics 2012-06-01 Chirag Kalelkar , Gareth McKinley

The status of the field of ultrahigh energy cosmic rays is summarized, from the point of view of the latest results of the High Resolution Fly's Eye (HiRes) Experiment. HiRes results are presented, and compared with those of the Akeno Giant…

Astrophysics · Physics 2009-06-23 P. Sokolsky , G. B. Thomson

We introduce Crowd-Sourced Splatting (CSS), a novel 3D Gaussian Splatting (3DGS) pipeline designed to overcome the challenges of pose-free scene reconstruction using crowd-sourced imagery. The dream of reconstructing historically…

Computer Vision and Pattern Recognition · Computer Science 2024-09-16 Runze Chen , Mingyu Xiao , Haiyong Luo , Fang Zhao , Fan Wu , Hao Xiong , Qi Liu , Meng Song

The demands placed on computational resources by the simulation requirements of high energy physics experiments motivate the development of novel simulation tools. Machine learning based generative models offer a solution that is both fast…

Instrumentation and Detectors · Physics 2023-04-03 Sascha Diefenbacher , Engin Eren , Frank Gaede , Gregor Kasieczka , Anatolii Korol , Katja Krüger , Peter McKeown , Lennart Rustige

In medical applications, deep learning methods are built to automate diagnostic tasks. However, a clinically relevant question that practitioners usually face, is how to predict the future trajectory of a disease (prognosis). Current…

Machine Learning · Computer Science 2021-12-08 Huy Hoang Nguyen , Simo Saarakkala , Matthew B. Blaschko , Aleksei Tiulpin

A new methodology for the synthesis of wide-angle scanning arrays is proposed. It is based on the formulation of the array design problem as a multi-objective one where, for each scan angle, both the radiated power density in the scan…

Systems and Control · Electrical Eng. & Systems 2024-08-14 Pietro Rosatti , Giacomo Oliveri , Andrea Massa

A new Cherenkov telescope of the SPHERE type is under development. Its main goal is to promote the solution of the problem of the primary cosmic ray mass composition at ultra high energies (1--100 PeV) using a newly developed technique of…

High Energy Astrophysical Phenomena · Physics 2025-07-24 V. I. Galkin , C. G. Azra , E. A. Bonvech , D. V. Chernov , E. L. Entina , V. I. Ivanov , V. S. Latypova , D. A. Podgrudkov , T. M. Roganova , and M. A. Ziva

In Extensive Air Shower (EAS) experiments, the primary direction is reconstructed by the space-time pattern of secondary particles. Thus the equalization of the transit time of signals coming from different parts of the detector is crucial…

Instrumentation and Detectors · Physics 2009-09-29 H. H. He , P. Bernardini , A. K. Calabrese Melcarne , S. Z. Chen

The Tianshan Radio Experiment for Neutrino Detection (TREND) is a sino-french collaboration (CNRS/IN2P3 and Chinese Academy of Science) developing an autonomous antenna array for the detection of high energy Extensive Air Showers (EAS) on…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 Olivier Martineau-Huynh

The KASCADE experiment measures a high number of EAS observables with a large degree of sampling of the electron-photon, muon, and hadron components. It provides accurate data for an event-by-event analysis of the primary cosmic ray flux in…

Astrophysics · Physics 2007-05-23 KASCADE Collaboration , T. Antoni

Acoustical knee health assessment has long promised an alternative to clinically available medical imaging tools, but this modality has yet to be adopted in medical practice. The field is currently led by machine learning models processing…

Signal Processing · Electrical Eng. & Systems 2024-12-02 Christodoulos Kechris , Jerome Thevenot , Tomas Teijeiro , Vincent A. Stadelmann , Nicola A. Maffiuletti , David Atienza

Presented is a new method yielding parameterized solution to an interval parametric linear system. Some properties of this method are discussed. The solution enclosure it provides is compared to the enclosures by other methods. It is shown…

Numerical Analysis · Mathematics 2020-05-15 Evgenija D. Popova