Article
Multidisciplinary Sciences
Heng Zhang, Zhequn Huang, Min Ding, Qixiang Wang, Yilin Feng, Zhenghong Li, Shan Wang, Lei Yang, Shuai Chen, Wen Shang, Jian Zhang, Tao Deng, Hongxing Xu, Kehang Cui
Summary: Energy-efficient and healthy lighting is important for humans. We propose and demonstrate a photon-recycling incandescent lighting device (PRILD) with a luminous efficacy of 173.6 lumens per watt, a power density of 277 watts per square centimeter, a CRI of 96, and a lifetime exceeding 60,000 hours. The PRILD uses a machine learning-designed visible-transparent infrared-reflective filter and a Janus carbon nanotube/hexagonal boron nitride filament to recycle 92% of the infrared radiation. Compared with solid-state lighting, the PRILD has higher luminous efficacy, CRI, and lifetime, making it promising for high-power density lighting.
Article
Green & Sustainable Science & Technology
Alexandru Viorel Rusu, Catalin Daniel Galatanu, Gheorghe Livint, Dorin Dumitru Lucache
Summary: The main quality concern in street lighting is the luminance distribution, and the standard BS EN 13201-3 specifies the calculation of average luminance for observers in the center of each lane. This paper proposes a solution for measuring average luminance from outside the carriageway, validated through simulations and field measurements. The study found that different lighting arrangements may require different measurement methods, and a correction function was proposed for cases where differences in measurements were found.
Article
Construction & Building Technology
Daniel Bishop, J. Geoffrey Chase
Summary: This study introduces a low-cost custom luminance imaging device that can provide comparable accuracy and performance to higher-cost technologies, reducing the cost barrier for luminance imaging and improving lighting design and practices.
Article
Chemistry, Analytical
Pawel Burdziakowski, Katarzyna Bobkowska
Summary: The authors of this paper discuss the potential and challenges of using UAV photogrammetry during darker time of the day, highlighting the differences in day- and night-time photogrammetric models and factors affecting them. They also present conclusions based on their comparisons of the two models.
Article
Environmental Sciences
Aravind Harikumar, Petra D'Odorico, Ingo Ensminger
Summary: Accurate delineation of individual tree crowns is crucial for forest parameter estimation, and a new method utilizing spectral, spatial-contextual, and structural information has been proposed and evaluated in a white spruce forest in Quebec, Canada. The method outperforms existing approaches, demonstrating its effectiveness in accurately estimating biophysical parameters.
Article
Construction & Building Technology
Peiyu Wu, Wenqian Xu, Qi Yao, Qiao Yuan, Shenfei Chen, Yedong Shen, Cheng Wang, Yuhui Zhang
Summary: Facade lighting in cities, particularly multi-spectral lighting, has significant ecological impacts and contributes to light pollution. This study collected hyperspectral data of 74 lighting facades in Shanghai, China, and analyzed the lighting features and their ecological impacts. The research found that multi-spectral lighting with saturated blue and red colors has higher luminance, more variable colors, and stronger ecological impacts on circadian rhythms, vision, and photosynthesis. A color gamut mapping strategy is proposed to reduce these impacts through color restriction.
SUSTAINABLE CITIES AND SOCIETY
(2023)
Article
Environmental Sciences
Jenna A. Guffogg, Samantha M. Blades, Mariela Soto-Berelov, Chris J. Bellman, Andrew K. Skidmore, Simon D. Jones
Summary: Marine plastic debris is a global environmental challenge, with an estimated 8 million tons of synthetic debris entering the ocean annually. Plastic has been found in all parts of the marine environment, with beaches presenting unique challenges for detecting debris. Experimental results show that different polymer types have varying surface cover requirements for detecting synthetic debris on sandy beaches.
Article
Environmental Sciences
Fabio Henrique Rojo Baio, Dthenifer Cordeiro Santana, Larissa Pereira Ribeiro Teodoro, Izabela Cristina de Oliveira, Ricardo Gava, Joao Lucas Gouveia de Oliveira, Carlos Antonio da Silva Junior, Paulo Eduardo Teodoro, Luciano Shozo Shiratsuchi
Summary: Predicting maize yield through machine learning algorithms using spectral information, temperature, and different irrigation management provides fast, accurate, and non-destructive information. The study aims to evaluate the relationship between irrigation management and spectral bands in predicting maize yields using multivariate statistics and machine learning techniques.
Article
Biodiversity Conservation
Xiaopeng Tan, Yuanqi Shan, Xin Wang, Renping Liu, Yunlong Yao
Summary: This study utilized high spatial resolution multispectral images obtained from UAV to investigate the predictive ability of spectral indices for wetland plant diversity monitoring. The results indicated that the predictive ability of NDVI-related indices to Hill numbers is better than that of commonly used species diversity indices, and the combined use of NDVIMEAN and NDVISD significantly improved the predictive ability of species diversity.
ECOLOGICAL INDICATORS
(2022)
Article
Environmental Sciences
Umberto Andriolo, Konstantinos Topouzelis, Tim H. M. van Emmerik, Apostolos Papakonstantinou, Joao Gama Monteiro, Atsuhiko Isobe, Mitsuko Hidaka, Shin ' ichiro Kako, Tomoya Kataoka, Gil Goncalves
Summary: This paper investigates the suitable GSD value for litter survey using multirotor drones, and provides a standardization for data collection and litter assessments in drone-based litter surveys.
MARINE POLLUTION BULLETIN
(2023)
Article
Environmental Sciences
Fumin Wang, Xiaoping Yao, Lili Xie, Jueyi Zheng, Tianyue Xu
Summary: This study investigated the performance of fluorescence spectral information in improving the accuracy of rice yield estimates based on vegetation indices. Results showed that introducing fluorescence spectral information significantly improved estimation accuracy, especially in the single-growth stage models.
Article
Biophysics
Christopher D. Marsh, Ross A. Hill, Matthew G. Nowak, Emma Hankinson, Abdullah Abdullah, Phillipa Gillingham, Amanda H. Korstjens
Summary: The research indicates that forest structure and solar radiation have significant impacts on microclimatic air temperature within the forest canopy, with forest degradation leading to higher temperatures. This may result in some forest-dwelling species being unable to adapt to degraded tropical forests in the face of future climate change.
INTERNATIONAL JOURNAL OF BIOMETEOROLOGY
(2022)
Article
Environmental Sciences
Brian R. Espey
Summary: Research on nighttime light has grown in importance, with advanced ground-based measurements and satellite data providing valuable information for testing theoretical models. Understanding city emission functions and radiative angular distribution is crucial for closing the loop in these measurements. The study introduces an efficient GIS-based method for modeling public lighting, yielding positive results in Irish towns and city areas.
Article
Environmental Sciences
Leon Amadeus Varga, Sebastian Koch, Andreas Zell
Summary: This research focuses on optimizing input images to improve the performance of object detectors, rather than solely improving image quality or detection models. Through empirical analysis, the study demonstrates the varying impacts of different parameters on detection accuracy and data throughput, and provides best practice recommendations based on the findings.
Article
Environmental Sciences
Tomasz Sciezor
Summary: Due to the coronavirus pandemic and tourism decrease, street lighting was turned off at night in Cracow, allowing for unique observations. Research found that turning off street lighting reduces the surface brightness of the night sky, especially in densely populated areas.
Article
Engineering, Aerospace
E. C. Lorenzini, C. Bettanini, G. Colombatti, A. Valmorbida
Review
Astronomy & Astrophysics
Francesca Ferri, Giacomo Colombatti, Alessio Aboudan, Carlo Bettanini, Stefano Debei, Ari Matti Harri, Jean Pierre Lebreton, Franck Montmessin, Jean Jacques Berthelier, Alice LeGall, Ronan Modolo, Karen Aplin, Athena Coustenis
SPACE SCIENCE REVIEWS
(2020)
Article
Engineering, Aerospace
C. Bettanini, M. Bartolomei, A. Aboudan, G. Colombatti, L. Olivieri
Summary: Light pollution is a growing concern for astronomical observations, ecosystem preservation, and quality of human life. The current method of mapping ground sources using satellite images has limited resolution, especially for blue cold LEDs which are poorly detected from space. The MINLU autonomous payload was designed to provide detailed aerial observations and monitor sky brightness. The system can be integrated on balloons or drones and achieves higher resolution compared to satellite images. The payload has been successfully launched and allows continuous observation of sky brightness from ground to stratospheric altitudes. The on-board cameras also quantify ground emission and track the sources causing artificial luminance of the sky.
Article
Chemistry, Analytical
Mirco Bartolomei, Lorenzo Olivieri, Carlo Bettanini, Stefano Cavazzani, Pietro Fiorentin
Summary: The study tested the performance of two SQM-LE units in the laboratory, revealing that their angular response deviated from expected performance and that their field of view was larger than stated by the manufacturer's datasheet.
Article
Engineering, Aerospace
Alexandru Andrei Avram, Carlo Bettanini, Sebastiano Chiodini, Alessio Aboudan, Giacomo Colombatti, Marco Giuliani
Summary: This article presents a study on optimizing the orbital configuration of a three-axis stabilized 6U LEO nanosatellite. The study focuses on accommodating a polarized calibrator designed for transmitting calibrated signals to seven ground telescopes dedicated to cosmic microwave background detection. The study aims to maximize visibility windows and revisit time through orbit selection and active attitude control, considering no possibility of orbital mobility.
IEEE AEROSPACE AND ELECTRONIC SYSTEMS MAGAZINE
(2022)
Article
Astronomy & Astrophysics
S. Cavazzani, P. Fiorentin, C. Bettanini, M. Bartolomei, C. Bertolin, S. Ortolani, A. Bertolo, R. Binotto, L. Olivieri, A. Aboudan, G. Colombatti
Summary: This study describes a novel approach to evaluate the atmospheric propagation of artificial light at night (ALAN), focusing on the dependence on altitude and aerosols. The method involves an experiment using a sounding balloon equipped with two sky-quality meters (SQM) and data analysis to model the light propagation from a few hundred meters up to 30 km altitude. The results validate a theoretical model and provide important experimental data on the influence of aerosols and altitude on ALAN propagation.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Remote Sensing
Lorenzo Olivieri, Carlo Bettanini
Summary: This article describes the collapse of the Marmolada glacier on July 3, 2022, and analyzes the satellite observations before and after the event to estimate the collapse area and volume, as well as compare the status of the glacier and the evolution of surface crevasses.
REMOTE SENSING LETTERS
(2023)
Article
Environmental Sciences
Pietro Fiorentin, Renata Binotto, Stefano Cavazzani, Andrea Bertolo, Sergio Ortolani, Ivo Saviane
Summary: The measurement of Night Sky Brightness and its correlation with outdoor lighting changes is important. The Sky Quality Meter is a widely used instrument, but its stability needs to be maintained through corrections to accurately track NSB trends.
Article
Polymer Science
Greta Ongaro, Alessandro Pontefisso, Elena Zeni, Francesco Lanero, Alessia Famengo, Federico Zorzi, Mirco Zaccariotto, Ugo Galvanetto, Pietro Fiorentin, Renato Gobbo, Roberta Bertani, Paolo Sgarbossa
Summary: Two nanomicas with different particle size distributions were used to prepare transparent epoxy nanocomposites. The nanocomposites showed homogeneous dispersion and no aggregation of nanoparticles. Despite the good dispersion, no exfoliation or intercalation was observed. The nanocomposites exhibited a slight decrease in transparency and no significant change in thermal behavior. The mechanical characterization revealed an increased Young's modulus but reduced tensile strength. A peridynamics-based approach was implemented to estimate the effective Young's modulus and fracture toughness of the nanomodified materials, and the results were validated against experimental data. The mica-based composites showed high volume resistivity and could be used as insulating materials.
Article
Engineering, Electrical & Electronic
Carlo Bettanini, Mirco Bartolomei, Pietro Fiorentin, Alessio Aboudan, Stefano Cavazzani
Summary: The presence of artificial light at night is causing limitations in astronomical observations and has negative effects on human health and wildlife behavior. To monitor artificial light emissions and their changes over time, new measurement systems are required. The Misurazione dell' INquinamento LUminoso autonomous payload, designed and tested at the University of Padova, offers complete aerial observations of artificial light sources over extended areas and can be integrated on stratospheric balloons or drones.
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
(2023)
Proceedings Paper
Engineering, Aerospace
Andrea Valmorbida, Lorenzo Olivieri, Giulia Sarego, Alice Brunello, Davide Vertuani, Carlo Bettanini, Marco Pertile, Enrico C. Lorenzini
Summary: The number of space debris around Earth is increasing, posing a serious threat to the near-Earth environment. Research on green deorbiting technologies like Electrodynamic Tethers shows promising results in addressing this issue. Experimental validation demonstrates the reliability of EDT technology, particularly in critical aspects such as tape tether deployment.
2021 IEEE 8TH INTERNATIONAL WORKSHOP ON METROLOGY FOR AEROSPACE (IEEE METROAEROSPACE)
(2021)
Proceedings Paper
Engineering, Aerospace
Francesco De Giudici, Federico Toson, Alberto Piva, Pietro Artusi, Lorenzo Olivieri, Carlo Bettanini
Summary: Avalanche rescue operations require quick localization of buried people, and companion rescue with avalanche transceivers remains the most effective option. The AVERLA project is developing avalanche localization instrumentation for small drones to improve search for buried individuals. The custom radiofrequency localization system is tuned to avalanche transceivers transmission frequency for performance assessment and integration onto off-the-shelf drones for further miniaturization.
2021 IEEE 8TH INTERNATIONAL WORKSHOP ON METROLOGY FOR AEROSPACE (IEEE METROAEROSPACE)
(2021)
Proceedings Paper
Engineering, Aerospace
Pietro Iob, Luca Frau, Piero Daniell, Lorenzo Olivieri, Carlo Bettanini
2020 IEEE 7TH INTERNATIONAL WORKSHOP ON METROLOGY FOR AEROSPACE (METROAEROSPACE)
(2020)
Proceedings Paper
Engineering, Aerospace
C. Bettanini, P. Fiorentin, A. Dumitriu, E. E. Conte, F. Accatino, E. Cagnato, O. Kahol, M. Ghedin, D. Celadin, N. Magro, M. Bedendo, A. Aboudan, G. Colombatti
2020 IEEE 7TH INTERNATIONAL WORKSHOP ON METROLOGY FOR AEROSPACE (METROAEROSPACE)
(2020)
