Article
Chemistry, Physical
A. El Bakali, R. Gilblas, T. Pottier, A. Lieurey, Y. Le Maoult
Summary: Thermomechanical simulation for high temperature shape processes like SuperPlastic Forming of Titanium alloys involves challenges such as accurately understanding emissivity for controlling radiative heat transfer. This study characterizes the emissivity of TA6V in different oxidation stages and establishes an oxidation law, showing different patterns of emissivity values with oxide thicknesses at different temperatures. The findings emphasize the importance of considering temperature and oxide thickness dependencies in increasing the accuracy of radiative heat transfer simulations.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Environmental Sciences
Egor Loboda, Denis Kasymov, Mikhail Agafontsev, Vladimir Reyno, Yevgeniy Gordeev, Veronika Tarakanova, Pavel Martynov, Yuliya Loboda, Konstantin Orlov, Kirill Savin, Andrey Dutov
Summary: The seminatural experiments in Western Siberia focused on steppe and forest-steppe wildfires, revealing large-scale turbulence at fire fronts and the influence of flame turbulence on the atmosphere. Additionally, changes in meteorological parameters and gas/aerosol compositions near the experimental site were observed.
Article
Green & Sustainable Science & Technology
Yeou-Fong Li, Po-An Yang, Chia-Ho Wu, Ta-Wui Cheng, Chih-Hong Huang
Summary: The study found that partial replacement of aggregates in asphalt concrete with Basic Oxygen Furnace Slag (BOFS) improved the thermal and mechanical properties of the specimens, with 75 wt.% substitution showing high emissivity and heat radiation cooling ability. Furthermore, BOFS demonstrated good thermal radiation cooling effects and the concept of sustainable resource utilization.
Article
Chemistry, Applied
Leipeng Zhang, Gaoping Xu, Lebin Wang, Bo Wang, Zichen Ren, Shuliang Dou, Shanshan Song, Mengyao Pan, Xiaobai Li, Yao Li
Summary: In this study, functional poly(aniline) films with significantly different emissivity modulation capabilities were obtained by tailoring the surface morphology. PANI2 with a non-directionally distributed nanowirelike structure and PANI6 with a rather smooth surface decorated by shallow voids could achieve emissivity variations in the wavelength range of 2.5-25 μm. The reason for the thermal radiation energies of PANI2 being higher than those of PANI6 was due to the residual PANI in PANI2 not being involved in redox reactions and the multiple reflections by non-directionally distributed nanowires on the surface suppressing the reflection of incident IR light. Additionally, PANI2 was found to have greater heat dissipation capabilities at a high emissivity state, while PANI6 effectively suppressed heat dissipation at a low emissivity state.
Article
Nanoscience & Nanotechnology
Sanghun Park, Sudip Kumar Pal, Tohid Otoufat, Gunwoo Kim
Summary: This study investigates the infrared absorption coefficient of various polymer types and introduces a new concept of radiative-cooling composites. By dispersing an infrared scattering medium in a polymer matrix, the infrared radiation can be effectively scattered and attenuated. This composite provides a new approach to enhance the radiative-cooling property of different polymer materials.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Sanghun Park, Sudip Kumar Pal, Tohid Otoufat, Gunwoo Kim
Summary: Radiative cooling attracts significant interest due to its potential to save energy consumption in HVAC systems and tackle global warming. However, the focus has mainly been on optimizing the geometries for selective wavelength absorption, rather than investigating and optimizing the polymer material itself. In this study, the authors investigate the infrared absorption coefficient of different polymer types and introduce a new concept of radiative-cooling composites. By dispersing an IR scattering medium in a polymer matrix, the authors demonstrate effective scattering and attenuation of infrared radiation, leading to improved cooling performance in a window film. This composite offers a promising approach to enhance radiative cooling properties in various polymer materials.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Chemical
Mahsa Vaghefi, Alireza Barforoushan, Gholam-Reza Nejabat, M. Sadegh Tavallali
Summary: An intelligent screening framework for PMMA samples is developed using machine learning tools and various sampling techniques. The performance of different classification algorithms is evaluated using multiple metrics. The results show that ROS oversampling coupled with Ensemble classification methods significantly improves the performance metrics for PMMA classification.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Optics
C. Leone, S. Genna, F. Bertocchi, M. Giordano, A. Martone
Summary: The paper presents an experimental procedure for measuring the emissivity of ultra-thin graphene based films, which shows that the measuring temperature and test methods do not affect the emissivity, while the emissivity decreases as the graphene content increases.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Instruments & Instrumentation
E. L. Loboda, O. V. Matvienko, M. V. Agafontsev, V. V. Reyno, V. P. Vavilov
Summary: The flame structure and flow modes of different liquid fuels during the diffusion combustion process have been investigated using infrared thermography. Seven characteristic zones with different flow modes in the flames have been identified by analyzing IR images and spectra of flame temperature fluctuations. The study shows that the Reynolds number increases significantly during the diffusion combustion of kerosene due to its complex chemical composition and multi-stage character of chemical reactions, in contrast to benzine, diesel fuel, and ethanol.
INFRARED PHYSICS & TECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
Huanzheng Zhu, Qiang Li, Chenning Tao, Yu Hong, Ziquan Xu, Weidong Shen, Sandeep Kaur, Pintu Ghosh, Min Qiu
Summary: This paper demonstrates a camouflage method that covers a wide range of frequencies based on multilayer and metasurface technologies, achieving multispectral camouflage and efficient radiative cooling simultaneously.
NATURE COMMUNICATIONS
(2021)
Article
Construction & Building Technology
Jen-Yu Han, Ya-Wei Huang, Sin-Yi Li
Summary: This research aims to establish a physical relation between the thermal behaviour and air voids of asphalt concrete using infrared thermography, providing a basis for evaluating its structural condition. Calibration techniques were applied to ensure accuracy. The results indicated a clear and constant relationship between temperature increase and air voids, serving as a critical indicator for evaluation. The empirical experiment also revealed a difference in thermal behaviour between the first minute and subsequent measurements.
INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING
(2023)
Review
Engineering, Environmental
Eka Oktavia Kurniati, Federico Pederson, Hee-Jeong Kim
Summary: This paper examines and compares widely used industrial by-products such as steel slag, ferronickel slag, copper tailings, and copper slag in the construction industry, focusing on their chemical compositions, concrete performance, and environmental suitability. The study finds that these by-products can enhance specific mechanical properties of concrete when used as substitutes for cement and fine aggregate, and the environmental concerns are evaluated through leaching tests, with most heavy metal contents below specific standards.
RESOURCES CONSERVATION AND RECYCLING
(2023)
Article
Biochemical Research Methods
Michael J. M. Harrap, Sean A. Rands
Summary: Background floral temperature is crucial for plant biology, and thermography is increasingly used to measure floral temperature. However, there is a lack of published estimates of floral emissivity. Researchers often rely on emissivity estimates from vegetative plant tissue, but it is unclear how appropriate and accurate these estimates are for floral tissue.
Article
Construction & Building Technology
D. Ruedisser, R. S. McLeod, W. Wagner, C. J. Hopfe
Summary: This study investigates the thermal radiative properties of soda-lime-silica glass and derives the angular reflectivity, emissivity, and absorptivity using experimental and numerical methods. The results are validated by experiments and additional functions and constants are provided. This research is of great practical importance for evaluating the energetic performance and thermal behaviour of buildings.
BUILDING AND ENVIRONMENT
(2022)
Review
Construction & Building Technology
Fitrotun Aliyah, Imam Kambali, Angga Fajar Setiawan, Yasmin Md Radzi, Azhar Abdul Rahman
Summary: Steel slag is a byproduct of the steel industry that has been increasingly utilized as a natural aggregate replacement in shielding concrete production. Despite some drawbacks, the addition of steel slag to concrete has proven to enhance its performance as an ionizing radiation shield. This systematic review provides a comprehensive overview of the research efforts on steel slag utilization in shielding concrete, including the characterization of steel slag, mix design and mechanical properties of concrete, and analysis of radiation test findings. The review concludes that while steel slag concrete can improve compressive and tensile strength, it may reduce workability and its radiation shielding performance at high temperatures.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
M. Felczak, G. de Mey, B. Wiecek, P. Chatzipanagiotou, V Chatziathanasiou
MICROELECTRONICS JOURNAL
(2019)
Article
Engineering, Electrical & Electronic
Maria Strakowska, Panagiotis Chatzipanagiotou, Gilbert De Mey, Vasilis Chatziathanasiou, Boguslaw Wiecek
INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS
(2020)
Article
Chemistry, Multidisciplinary
Krzysztof Strzecha, Marek Krakos, Boguslaw Wiecek, Piotr Chudzik, Karol Tatar, Grzegorz Lisowski, Volodymyr Mosorov, Dominik Sankowski
Summary: This work focuses on electromyography (EMG) signal processing for the diagnosis and therapy of different muscles. An original algorithm is proposed to clean raw EMG measurements and enable precise muscle activity measurements with minimal loss of diagnostic content.
APPLIED SCIENCES-BASEL
(2021)
Article
Engineering, Electrical & Electronic
Rafal Sylwester Kasikowski, Boguslaw Wiecek
Summary: The fringing-field phenomenon in magnetic components with an air gap can cause localized heating in windings and reduce power conversion efficiency, which can be analyzed using infrared thermography. Thermographic analysis and power loss measurements for different air gap configurations can be used to construct compact thermal models of the inductor. Splitting a single air gap into multiple individual air gaps can significantly diminish the fringing effect.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2021)
Article
Instruments & Instrumentation
Robert Olbrycht
Summary: This study introduces a novel method for sensitivity modelling of uncooled thermal cameras for optical gas imaging, which allows estimation of sensitivity without physically installing a filter inside the camera. The method can also be used to predict changes in noise equivalent temperature difference after filter installation.
QUANTITATIVE INFRARED THERMOGRAPHY JOURNAL
(2022)
Article
Materials Science, Characterization & Testing
Eulalia Gliscinska, Marina Michalak, Izabella Krucinska, Maria Strakowska, Michal Kopec, Boguslaw Wiecek
Summary: A new method based on thermographic measurement is proposed to control the thickness of the polymer surface layer, which can increase the sound absorption efficiency of fibrous composite materials. The research results demonstrate the prospect of this method in the development of sound-absorbing composites.
Article
Engineering, Electrical & Electronic
Blazej Torzyk, Boguslaw Wiecek
Summary: This study introduces a new method using an infrared camera to measure the rms values of AC in power lines, allowing for a linear relationship between temperature changes and the rms current values. The method is noncontact and has unique advantages, providing a way to estimate rms current regardless of ambient background radiation and convection cooling conditions.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2021)
Proceedings Paper
Engineering, Electrical & Electronic
Michal Kopec, Boguslaw Wiecek
PROCEEDINGS OF 2020 27TH INTERNATIONAL CONFERENCE ON MIXED DESIGN OF INTEGRATED CIRCUITS AND SYSTEM (MIXDES)
(2020)
Proceedings Paper
Engineering, Electrical & Electronic
Iyad S. M. Shatarah, Boguslaw Wiecek
PROCEEDINGS OF 2020 27TH INTERNATIONAL CONFERENCE ON MIXED DESIGN OF INTEGRATED CIRCUITS AND SYSTEM (MIXDES)
(2020)
Article
Automation & Control Systems
Robert Olbrycht, Marcin Kaluza
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2020)
Proceedings Paper
Instruments & Instrumentation
I. S. M. Shatarah, A. Imiela, J. Surmacki, R. Olbrycht, W. Wittchen, M. Borecki, H. Abramczyk, B. Wiecek
14TH QUANTITATIVE INFRARED THERMOGRAPHY CONFERENCE
(2018)
Proceedings Paper
Instruments & Instrumentation
I. S. M. Shatarah, R. Olbrycht, B. Wiecek
14TH QUANTITATIVE INFRARED THERMOGRAPHY CONFERENCE
(2018)
Proceedings Paper
Instruments & Instrumentation
M. Strakowska, M. Strzelecki, B. Wiecek
14TH QUANTITATIVE INFRARED THERMOGRAPHY CONFERENCE
(2018)
Proceedings Paper
Instruments & Instrumentation
M. Strakowska, P. Chatzipanagiotou, G. De Mey, V. Chatziathanasiou, B. Wiecek
14TH QUANTITATIVE INFRARED THERMOGRAPHY CONFERENCE
(2018)
Proceedings Paper
Instruments & Instrumentation
R. Kasikowski, B. Wiecek
14TH QUANTITATIVE INFRARED THERMOGRAPHY CONFERENCE
(2018)
