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Experiments were performed to study how rocket exhaust blows soil in lunar and Martian conditions. Jets of gas were blown downwardly at various granular materials while a camera recorded the formation of scour holes as the material was…

Instrumentation and Methods for Astrophysics · Physics 2024-06-25 Philip T. Metzger

A moderate-sized (8 MW) fire was modeled in a warehouse located in an urban area with diverse architecture, under wind conditions. The study investigates the impact of neighboring architecture on the wind field and the resulting effect on…

Fluid Dynamics · Physics 2023-02-06 Wojciech Węgrzyński , Grzegorz Krajewski , Grzegorz Kimbar , Tomasz Lipecki

The impact of wildfire smoke on air quality is a growing concern, contributing to air pollution through a complex mixture of chemical species with important implications for public health. While previous studies have primarily focused on…

Methodology · Statistics 2026-02-10 Dafne Zorzetto , Jenna Landy , Corwin Zigler , Giovanni Parmigiani , Roberta De Vito

Temporary plastic film barriers are widely used to separate occupied rooms from exterior renovation zones, yet their effect on indoor particulate exposure is poorly quantified. We monitored PM$_{2.5}$ in a Tampa, Florida, apartment for 48…

Medical Physics · Physics 2025-09-16 Rostyslav Sipakov , Olena Voloshkina

This study presents an innovative approach to creating a dynamic, AI based emission inventory system for use with the Weather Research and Forecasting model coupled with Chemistry (WRF Chem), designed to simulate vehicular and other…

Computer Vision and Pattern Recognition · Computer Science 2024-10-29 Shubham Ghosal , Manmeet Singh , Sachin Ghude , Harsh Kamath , Vaisakh SB , Subodh Wasekar , Anoop Mahajan , Hassan Dashtian , Zong-Liang Yang , Michael Young , Dev Niyogi

The ocean ecology is badly impacted by large-scale oil spills, plastic waste, and chemical pollution, which destroy ecosystems and endanger marine life. Acknowledging the detrimental effects of oil spills on ecosystems, our research aims to…

Emerging Technologies · Computer Science 2024-09-04 L Rochit , Nithish Kumar N , Devi Priya V S , Sibi Chakkaravarthy Sethuraman , Anitha Subramanian

We propose three spatial methods for estimating the full probability distribution of PM10 concentrations, with the ultimate goal of assessing air quality in Northern Italy. Moving beyond spatial averages and simple indicators, we adopt a…

The level of air quality in urban centres is affected by emission of several pollutants, mainly coming from the vehicles flowing in their road networks. This is a well known phenomenon that influences the quality of life of people. Despite…

Fluid Dynamics · Physics 2011-02-02 P. Ferrante , D. Lo Bosco , S. Nicolosi , G. Scaccianoce , M. Traverso , G. Rizzo

The concentration of radon in the air has been measured in the 700 m-deep Yangyang underground laboratory between October 2004 and May 2022. The average concentrations in two experimental areas, called A6 and A5, were measured to be…

Instrumentation and Detectors · Physics 2022-09-23 C. Ha , Y. Jeong , W. G. Kang , J. Kim , K. W. Kim , S. K. Kim , Y. D. Kim , H. S. Lee , M. H. Lee , M. J. Lee , Y. J. Lee , K. M. Seo

Pollution in urban areas can have significant adverse effects on the health and well-being of citizens, with traffic-related air pollution being a major concern in many cities. Pollutants emitted by vehicles, such as nitrogen oxides, carbon…

There is increasing focus on whether air pollution originating from different sources has different health implications. In particular, recent evidence suggests that fine particulate matter (PM2.5) with chemical tracers suggesting coal…

Greening cities is a key solution to improve the urban microclimate and mitigate the impact of climate change. However, the effect of tree planting on pollutant dispersion in streets is still a debated topic. To shed light on this issue, we…

Atmospheric and Oceanic Physics · Physics 2022-11-07 Sofia Fellini , Massimo Marro , Annika Vittoria Del Ponte , Marilina Barulli , Lionel Soulhac , Luca Ridolfi , Pietro Salizzoni

Using the measurements collected at a number of known locations by a moving binary sensor, characterised by an unknown threshold, the problem is to estimate the parameters of a biochemical source, continuously releasing material into the…

Applications · Statistics 2016-08-24 Branko Ristic , Ajith Gunatilaka , Ralph Gailis

In this paper, we introduce a novel framework for building learning and control, focusing on ventilation and thermal management to enhance energy efficiency. We validate the performance of the proposed framework in system model learning via…

Systems and Control · Electrical Eng. & Systems 2024-03-15 Yuexin Bian , Xiaohan Fu , Rajesh K. Gupta , Yuanyuan Shi

Nowadays air pollution becomes one of the biggest world issues in both developing and developed countries. Helping individuals understand their air pollution exposure and health risks, the traditional way is to utilize data from static…

Computers and Society · Computer Science 2020-05-29 Ke Hu , Ashfaqur Rahman , Hassan Habibi Gharakheili , Vijay Sivaraman

Knowing the physicochemical properties of exhaled droplets and aerosol particles is a prerequisite for a detailed mechanistic understanding and effective prevention of the airborne transmission of infectious human diseases. This article…

In recent years, the issue of radon emanation and diffusion has become a critical concern for rare decay experiments, such as JUNO and PandaX-4T. This paper introduces a detector design featuring a symmetric radon detector cavity for the…

Dynamic models of occupancy patterns have shown to be effective in optimizing building-systems operations. Previous research has relied on CO$_2$ sensors and vision-based techniques to determine occupancy patterns. Vision-based techniques…

Machine Learning · Computer Science 2022-03-10 Mahsa Pahlavikhah Varnosfaderani , Arsalan Heydarian , Farrokh Jazizadeh

The dispersion of respiratory saliva droplets by indoor wake structures may enhance the transmission of various infectious diseases, as the wake spreads virus-laden droplets across the room. Thus, this study analyses the interaction between…

Fluid Dynamics · Physics 2022-12-27 Orr Avni , Yuval Dagan

At millimeter-wave frequencies, diffuse scattering from rough surfaces is an important propagation mechanism. Including this mechanism in radio propagation modeling tools,such as ray-tracing, is a key step towards realizing accurate…

Signal Processing · Electrical Eng. & Systems 2021-06-16 Stefanos Bakirtzis , Takahiro Hashimoto , Costas D. Sarris