| 1. |
- Wang, Bin, et al.
(author)
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Insight of chemical environmental risk and its management from the vinyl chloride accident
- 2023
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In: Frontiers of Environmental Science and Engineering. - : Springer. - 2095-2201 .- 2095-221X. ; 17:4
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Journal article (peer-reviewed)abstract
- The combustion of vinyl chloride (VC) after the train derailment accident in Ohio, USA in February, 2023 has caused widespread concern around the world. This paper tried to analyze several issues concerning the accident, including the appropriateness of the VC combustion in the emergency response in this accident, the meanings of so-called "controlled combustion", the potential environmental risks caused by VC and combustion by-products, and follow-up work. In our view, this accident had surely caused environmental and health risks to some extent. Hence, a comprehensive environmental risk assessment is necessary, and then the site with risk should be comprehensively remediated, hazardous waste should be harmlessly treated as soon as possible. Finally, this accident suggests that further efforts should be taken to bridge the gap between chemical safety management and their environmental risk management.
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| 2. |
- Kupresak, Mario, et al.
(author)
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Hydrodynamic approach for deep-nanometer scale topologies: Analysis of metallic shell
- 2021
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In: 2020 International Symposium on Antennas and Propagation, ISAP 2020. ; , s. 269-270
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Conference paper (peer-reviewed)abstract
- In order to describe light-matter interaction at deep-nanometer scale, which is governed by nonclassical phenomena, a semiclassical hydrodynamic model with additional boundary conditions has been introduced. This model investigates the motion of the charged gas in metals, characterized by nonlocal material parameters. Based on different treatments of the nonlocality, several hydrodynamic models have been proposed. This work employs the hard wall hydrodynamic model (HW-HDM) and the quantum hydrodynamic model (Q-HDM). The study is performed for the mode structure (natural modes) of a spherical metallic nanoshell, supplemented by the plane wave response of the system. It is shown that the main transverse resonances of HW-HDM and Q-HDM experience nearly identical blueshifts in comparison to the classical resonances. The corresponding longitudinal resonances show noticeable spectrum shifts.
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| 3. |
- Kupresak, Mario, et al.
(author)
-
Nonlocal Hydrodynamic Response of Plasmonic Structures at Deep-nanometer Scale
- 2020
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In: Proceedings Elmar - International Symposium Electronics in Marine. - 1334-2630. ; 2020-September, s. 1-4
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Conference paper (peer-reviewed)abstract
- The electromagnetic properties of plasmonic nano-Antennas and scatterers with the characteristic dimensions at deep-nanometer scale, governed by quantum mechanical effects, have been extensively studied by a hydrodynamic approach. Several hydrodynamic models, together with additional boundary conditions, have been proposed to deal with the collective motion of the free electron gas in metals. In this work, four hydrodynamic models, namely the hard-wall hydrodynamic model, the curl-free hydrodynamic model, the shear forces hydrodynamic model, and the quantum hydrodynamic model are employed. The study is performed for a deep-nanometer metal core-dielectric shell sphere, excited by a plane wave. It is demonstrated that the far field characteristics of the core-shell nanosphere are largely affected by the choice of a specific hydrodynamic model.
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| 4. |
- Kupresak, Mario, et al.
(author)
-
Nonlocal Response of Plasmonic Nanostructures Excited by Dipole Emitters
- 2021
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In: Proceedings Elmar - International Symposium Electronics in Marine. - 1334-2630. ; 2021-September, s. 25-28
-
Conference paper (peer-reviewed)abstract
- The interaction between light and plasmonic structures at the deep-nanometer scale, which is essentially governed by nonclassical effects, has been increasingly investigated by the hydrodynamic model. Several hydrodynamic models have been introduced, in order to describe the motion of the free electron gas in metals. In this work, by employing the hard wall hydrodynamic model (HW-HDM) and the quantum hydrodynamic model (Q-HDM), the nonlocal response of an isolated metallic nanoparticle, excited by a dipole emitter, is investigated. The analysis is performed for the local density of states of an emitter coupled with a spherical nanoparticle, which may be treated analytically. Both radial and tangential emitters are studied, while varying the emitter-nanoparticle separation, and the nanoparticle's size and material. It is shown that HW-HDM and Q-HDM may generate striking spectral features, which do not arise within the classical approach.
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