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In this work, carbon $^{14}$C and Tritium were considered as possible background source in the XENON1T experiment. The simulation results show that if $^{14}$C is located in dust particles with a characteristic size of tens of micrometers,…

Instrumentation and Detectors · Physics 2021-02-03 Yu. Shitov , E. Yakushev

Higher-order tensors have received increased attention across science and engineering. While most tensor decomposition methods are developed for a single tensor observation, scientific studies often collect side information, in the form of…

Methodology · Statistics 2021-10-29 Jiaxin Hu , Chanwoo Lee , Miaoyan Wang

Tensor principal component analysis (TPCA) is a multi-linear extension of principal component analysis which converts a set of correlated measurements into several principal components. In this paper, we propose a new robust TPCA method to…

Computer Vision and Pattern Recognition · Computer Science 2017-01-17 Longxi Chen , Yipeng Liu , Ce Zhu

The tensor-train (TT) decomposition expresses a tensor in a data-sparse format used in molecular simulations, high-order correlation functions, and optimization. In this paper, we propose four parallelizable algorithms that compute the TT…

Numerical Analysis · Mathematics 2021-11-23 Tianyi Shi , Maximilian Ruth , Alex Townsend

Several improvements were made for Nuclear Track Detectors (NTDs) used for environmental studies and for particle searches. A new method was used to determine the bulk etch rate of CR39 and Makrofol NTDs. It is based on the simultaneous…

Instrumentation and Detectors · Physics 2008-11-26 S. Manzoor , S. Balestra , M. Cozzi , M. Errico , G. Giacomelli , M. Giorgini , A. Kumar , A. Margiotta , E. Medinaceli , L. Patrizii , V. Popa , I. E. Qureshi , V. Togo

Air pollutants have long been known to cause major health problems across humans and all living organisms. Apart from that, they also play a crucial role in temperature inversion situations in the atmospheric layers thereby seriously…

Atmospheric and Oceanic Physics · Physics 2022-08-22 Bugra Alparslan , Mayank Jain , Jiantao Wu , Soumyabrata Dev

Rotating fans are the prevalent forced cooling method for heat generating equipment and buildings. As the concentration of atmospheric pollutants has increased, the accumulation of microscale and nanoscale particles on surfaces due to…

Fluid Dynamics · Physics 2021-02-26 Jason Stafford , Chen Xu

Forest fires are a major source of particulate matter (PM) air pollution on a global scale. The composition and impact of PM are typically studied using only laboratory instruments and extrapolated to real fire events owing to a lack of…

Instrumentation and Detectors · Physics 2018-02-09 Yichen Wu , Ashutosh Shiledar , Yi Luo , Jeffrey Wong , Cheng Chen , Bijie Bai , Yibo Zhang , Miu Tamamitsu , Aydogan Ozcan

This paper addresses the challenge of reconstructing a 3D power spectrum map from sparse, scattered, and incomplete spectrum measurements. It proposes an integrated approach combining interpolation and block-term tensor decomposition (BTD).…

Signal Processing · Electrical Eng. & Systems 2024-02-28 Hao Sun , Junting Chen

The patterns of particulate matter with diameters that are generally 2.5 micrometers and smaller (PM2.5) are heterogeneous in China nationwide but can be homogeneous region-wide. To reduce the adverse effects from PM2.5, policymakers need…

Applications · Statistics 2023-11-07 Tingyin Wang , Xueqin Wang , Xiaobo Guo , Heping Zhang

Capturing the potentially strong dependence among the peak concentrations of multiple air pollutants across a spatial region is crucial for assessing the related public health risks. In order to investigate the multivariate spatial…

Applications · Statistics 2018-04-13 Sabrina Vettori , Raphaël Huser , Marc G. Genton

Consider a data set collected by (individuals-features) pairs in different times. It can be represented as a tensor of three dimensions (Individuals, features and times). The tensor biclustering problem computes a subset of individuals and…

Machine Learning · Computer Science 2019-03-12 Andriantsiory Dina Faneva , Mustapha Lebbah , Hanane Azzag , Gaël Beck

Organic aerosol (OA) is a key component to total submicron particulate matter (PM1), and comprehensive knowledge of OA sources across Europe is crucial to mitigate PM1 levels. Europe has a well-established air quality research…

In this paper, a useful reinterpretation of the city as a porous medium justifies the application of well-known models on fluid dynamics to develop a multi-model study of urban air pollution due to traffic flow in a large city. Thus, to…

Numerical Analysis · Mathematics 2025-02-21 N. Garcia-Chan , L. J. Alvarez-Vazquez , A. Martinez , M. E. Vazquez-Mendez

Spectrum cartography aims at estimating power propagation patterns over a geographical region across multiple frequency bands (i.e., a radio map)---from limited samples taken sparsely over the region. Classic cartography methods are mostly…

Signal Processing · Electrical Eng. & Systems 2020-10-28 Guoyong Zhang , Xiao Fu , Jun Wang , Xi-Le Zhao , Mingyi Hong

Air pollution has altered the Earth radiation balance, disturbed the ecosystem and increased human morbidity and mortality. Accordingly, a full-coverage high-resolution air pollutant dataset with timely updates and historical long-term…

Atmospheric and Oceanic Physics · Physics 2021-03-12 Guannan Geng , Qingyang Xiao , Shigan Liu , Xiaodong Liu , Jing Cheng , Yixuan Zheng , Dan Tong , Bo Zheng , Yiran Peng , Xiaomeng Huang , Kebin He , Qiang Zhang

Single-particle kinetic energy spectra and two-particle small angle correlations of protons ($p$), deuterons ($d$) and tritons ($t$) have been measured simultaneously in 61A MeV $^{36}$Ar + $^{27}$Al, $^{112}$Sn and $^{124}$Sn collisions.…

Nuclear Experiment · Physics 2010-04-05 V. Avdeichikov , R. Ghetti , J. Helgesson , B. Jakobsson , P. Golubev , N. Colonna , H. W. Wilschut

Knowledge on the temporal and size distribution of particulate matter (PM) in air as well as on its elemental composition is a key information for source appointment, for the investigation of their influence on environmental processes and…

Atmospheric and Oceanic Physics · Physics 2021-09-08 Yves Kayser , János Osán , Philipp Hönicke , Burkhard Beckhoff

The widespread use of multisensor technology and the emergence of big datasets have created the need to develop tools to reduce, approximate, and classify large and multimodal data such as higher-order tensors. While early approaches…

Numerical Analysis · Computer Science 2018-07-03 Alp Ozdemir , Ali Zare , Mark A. Iwen , Selin Aviyente

Tensor decomposition has been extensively used as a tool for exploratory analysis. Motivated by neuroscience applications, we study tensor decomposition with Boolean factors. The resulting optimization problem is challenging due to the…

Machine Learning · Computer Science 2020-11-13 Sung-En Chang , Xun Zheng , Ian E. H. Yen , Pradeep Ravikumar , Rose Yu