D. Henista Jarly, A. S. Jebamalar, S. Sindhusha, B. Gunasekaran, G. Vinitha
{"title":"Insights into the third-order NLO behaviour of novel 4-aminobenzoate p-methylbenzene sulphonate monohydrate single crystal for optical power regulation","authors":"D. Henista Jarly, A. S. Jebamalar, S. Sindhusha, B. Gunasekaran, G. Vinitha","doi":"10.1007/s10854-025-15984-5","DOIUrl":"10.1007/s10854-025-15984-5","url":null,"abstract":"<div><p>A novel nonlinear optical organic single-crystal, 4-aminobenzoate p-methylbenzene sulphonate monohydrate (4APMSM) with a molecular formula C<sub>14</sub>H<sub>17</sub>NO<sub>6</sub>S has been successfully synthesized through a facile slow evaporation technique from ethanol-water solvent mixture at ambient temperature. The crystallographic architecture of the synthesized 4APMSM novel adduct was unravelled via single-crystal X-ray diffraction, confirming its structural integrity and lattice parameters. The 3D Hirshfeld surface analysis and 2D fingerprints visualize and quantify intermolecular interactions within the grown crystal. Fourier transform infrared spectroscopy provides insights into the vibrational modes associated with functional moieties and evidence the incorporation of lattice water molecules. The optical characteristics were systematically investigated employing UV–Vis absorption and steady state fluorescence spectroscopy, which delineate the electronic transitions and luminescent behaviour of the title compound. The UV–Vis spectrum revealed a cut-off wavelength of 278 nm, corresponding to an optical band gap of 4.1 eV, affirming 4APMSM’s low band gap nature and its potential for strong optical nonlinearity and efficient charge transfer. Thermal stability was quantitatively examined using thermogravimetric analysis (TGA) coupled with differential thermal analysis (DTA), revealing decomposition thresholds and thermal events, with stability observed up to 183 °C. Mechanical robustness was assessed via Vickers microhardness tester, quantifying its resistance to localized deformation. Frequency-dependent dielectric measurements were carried out over a range of temperatures to study the dielectric response of the title compound. Moreover, third-order nonlinear optical (NLO) susceptibility of 4.108 × 10⁻<sup>12</sup> esu was probed through Z-scan technique, revealing the crystal’s potential for advanced photonic and optoelectronic functionalities.</p></div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"36 29","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145316470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Trevisi, T. Bituh, A. Canoba, M. Chege, A. Cordelle, D. Chambers, N. Chambers, P. Egidi, R. Gellermann, F. Grandia, J. Hondros, C. Kunze, J. Lee, B. Michalik, F. Otoo, S. Pepin, K. N. Rovenska, R. Sapoi, P. Tchokossa, O. van Dongen
{"title":"Overview of national regulatory approaches to assess worker’s exposure to radon in industries involving norm","authors":"R. Trevisi, T. Bituh, A. Canoba, M. Chege, A. Cordelle, D. Chambers, N. Chambers, P. Egidi, R. Gellermann, F. Grandia, J. Hondros, C. Kunze, J. Lee, B. Michalik, F. Otoo, S. Pepin, K. N. Rovenska, R. Sapoi, P. Tchokossa, O. van Dongen","doi":"10.1140/epjp/s13360-025-06837-5","DOIUrl":"10.1140/epjp/s13360-025-06837-5","url":null,"abstract":"<div><p>National regulations address the radiological protection of industrial processes involving Naturally Occurring Radioactive Material (NORM), each with different approach. A collection of information gathered by members of the International Radiation Protection Association task group on “NORM” helps identify key differences in regulatory strategies. The main findings indicate that, while national regulations generally implement the requirements of international standards—and, for EU Member States, the provisions of European Commission directives—and consider ICRP recommendations, the regulatory approaches and protocols for managing worker exposure to radon in workplaces involving NORM vary significantly. In most countries, industrial processes involving NORM are regulated as planned exposure situations, whereas exposure to radon in workplaces is typically managed as an existing exposure situation. When radon doses need to be assessed because requirements for planned exposure situations apply, national regulations often require that these contributions be recorded and treated separately. However, in several countries, the contribution from radon inhalation is explicitly incorporated into the total effective dose assessment. In certain cases, the calculation specifically accounts only for the radon exposure attributable to the handling of NORM, excluding background or unrelated sources. The methodology for estimating radon doses can vary significantly between countries. There is a lack of harmonisation in the physical quantities used for assessment, as well as in the values of dose conversion factors.</p></div>","PeriodicalId":792,"journal":{"name":"The European Physical Journal Plus","volume":"140 10","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145316583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kosim Olimov, Kadyr G. Gulamov, Akbar I. Suvanov, Khusniddin K. Olimov
{"title":"Production of Δ0 resonances in p+12C collisions at 9.9 GeV/c","authors":"Kosim Olimov, Kadyr G. Gulamov, Akbar I. Suvanov, Khusniddin K. Olimov","doi":"10.1140/epjp/s13360-025-06934-5","DOIUrl":"10.1140/epjp/s13360-025-06934-5","url":null,"abstract":"<div><p>The new experimental data on the inclusive reaction <i>p</i>+<sup>12</sup>C → ∆<sup>0</sup> + X at an incident proton momentum of 9.9 GeV/<i>c</i> and various characteristics of the ∆<sup>0</sup> resonances produced in <i>p</i>+<sup>12</sup>C collisions at projectile proton momentum of 4.2 and 9.9 GeV/<i>c</i> have been presented. The average mass and width of the mass distribution of the ∆<sup>0</sup> resonances have proved to be independent of the primary energy of incident protons. The mass width of the ∆<sup>0</sup> resonances produced in the target (<sup>12</sup>C) nucleus fragmentation region has been found to be almost half of the mass width of the ∆<sup>0</sup> resonances in free hadron-nucleon collisions. The average number per one collision event of the ∆<sup>0</sup> resonances produced in <i>p</i>+<sup>12</sup>C collisions at 9.9 GeV/<i>c</i> turned out to be about 2.4 times greater than that in <i>p</i>+<sup>12</sup>C collisions at 4.2 GeV/<i>c</i>. We have obtained that the hypothesis of the limiting fragmentation is not fulfilled for the ∆<sup>0</sup> resonances in the inclusive reaction <i>p</i>+<sup>12</sup>C → ∆<sup>0</sup> + X in the range of kinetic energy of the incident projectile protons from 3.37 to 9 GeV, corresponding to the momentum interval of incident protons from 4.2 to 9.9 GeV/<i>c</i>. The results of present analysis indicate that formation of the ∆<sup>0</sup> resonance in the region of fragmentation of the target (<sup>12</sup>C) nucleus in <i>p</i>+<sup>12</sup>C collisions at 9.9 GeV/<i>c</i> occurs predominantly via excitation of one of the target (<sup>12</sup>C) neutrons to a ∆<sup>0</sup> resonance, which then decays promptly into proton and <i>π</i><sup>‒</sup> meson.</p></div>","PeriodicalId":792,"journal":{"name":"The European Physical Journal Plus","volume":"140 10","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145316585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Dynamical systems approach and cosmological attractors in newer general relativity","authors":"Manuel Hohmann, Ulbossyn Ualikhanova","doi":"10.1140/epjc/s10052-025-14865-9","DOIUrl":"10.1140/epjc/s10052-025-14865-9","url":null,"abstract":"<div><p>We study the cosmological dynamics of a class of symmetric teleparallel gravity theories known as “newer general relativity” using the methods of dynamical systems, restricted to the case of vacuum solutions with a spatially flat Friedmann–Lemaître–Robertson–Walker metric. For the most general class of theories, we study generic properties of the solutions, in particular their fixed points, asymptotic behavior and effective dark energy. We then apply this approach to two phenomenologically motivated subclasses of theories, which we study in full detail. For these theories, we derive the complete space of solutions and cosmological attractors, which we display in a number of phase diagram. Depending on the particular theory at hand, we find different possible scenarios, including a turnaround followed by a big crunch, a big rip and an eternally expanding universe whose Hubble parameter asymptotically approaches zero. It turns that this different behavior can be explained by the effective dark energy barotropic index, which shows either phantom or non-phantom behavior, depending on the theory, but does not change dynamically between these two possibilities.\u0000</p></div>","PeriodicalId":788,"journal":{"name":"The European Physical Journal C","volume":"85 10","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-025-14865-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145316591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
AmbioPub Date : 2025-10-18DOI: 10.1007/s13280-025-02264-z
Rudy Brogi, Giovanna Neirotti, Jacopo Cerri, Martina Lazzaroni, Sarah Marshall-Pescini, Luca Mattioli, Marco Apollonio
{"title":"Wolves on the phone: Public calls reveal a rise in urban concerns as wolves recolonize human-dominated areas.","authors":"Rudy Brogi, Giovanna Neirotti, Jacopo Cerri, Martina Lazzaroni, Sarah Marshall-Pescini, Luca Mattioli, Marco Apollonio","doi":"10.1007/s13280-025-02264-z","DOIUrl":"https://doi.org/10.1007/s13280-025-02264-z","url":null,"abstract":"<p><p>European wolf populations are expanding into human-dominated landscapes, triggering novel interactions with citizens and public concerns that may disrupt the traditional urban-rural divide in wolf attitudes and reshape conservation paradigms. We modelled the spatiotemporal distribution and valence of the wolf reports received through a dedicated phone service in Tuscany, Italy (2021-2024). Reports were significantly more common in: (i) late winter, aligning with the peak dispersal period and increased wolf movements. (ii) recently recolonized areas, suggesting a wolf-novelty effect, and (iii) urban areas, where negative valence was also more likely. Public concerns about wolves are increasingly emerging in urban areas, potentially disrupting the traditionally more supportive urban stance on wolf presence. In one of the European regions where wolf recovery began earlier and progressed further, our findings signal a broader shift in public attitudes that may weaken support for wolf conservation, potentially anticipating similar developments in areas of more recent recovery.</p>","PeriodicalId":461,"journal":{"name":"Ambio","volume":" ","pages":""},"PeriodicalIF":5.1,"publicationDate":"2025-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145311927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ana Caroline Muniz Silva, Erick Rafael Dias Rates, Joel Félix da Silva Diniz Filho, Clenilton Costa Dos Santos, Pedro Filho Noronha de Souza, Felipe Pantoja Mesquita, Ralph Santos-Oliveira, Luciana Magalhães Rebelo Alencar
{"title":"Melanoma Spotlight: New Perspectives Through Biophysical Markers.","authors":"Ana Caroline Muniz Silva, Erick Rafael Dias Rates, Joel Félix da Silva Diniz Filho, Clenilton Costa Dos Santos, Pedro Filho Noronha de Souza, Felipe Pantoja Mesquita, Ralph Santos-Oliveira, Luciana Magalhães Rebelo Alencar","doi":"10.1007/s12013-025-01933-w","DOIUrl":"https://doi.org/10.1007/s12013-025-01933-w","url":null,"abstract":"","PeriodicalId":510,"journal":{"name":"Cell Biochemistry and Biophysics","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145312092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Bifurcation analysis and Turing pattern formation on multiplex networks of ecological model with trade-off dynamics","authors":"Masoom Bhargava, Balram Dubey","doi":"10.1140/epjp/s13360-025-06951-4","DOIUrl":"10.1140/epjp/s13360-025-06951-4","url":null,"abstract":"<div><p>Ecological trade-offs occur when organisms balance conflicting demands, such as survival and reproduction. Predators may risk injury or death when pursuing dangerous prey, affecting their survival. Similarly, prey must balance reproductive efforts against safety, while predators must weigh food acquisition against the risk of harm. In order to represent prey collective defense, we present a ecological model in this study that includes prey growth affected by fear and a Monod-Haldane functional response. We explore how group defense influences prey trade-off dynamics and introduce a predator death function to represent losses due to dangerous prey encounters. The model reveals complex dynamics, including bistability and several bifurcations: transcritical, saddle-node, Hopf, Bogdanov–Takens, Bautin, homoclinic, and limit cycle bifurcations. Our results indicate that high amount of group defense can lead to predator extinction, highlighting the trade-off between food acquisition and safety. We further extend the model to include cross-diffusion, accounting for species-specific movement patterns. We theoretically derive Turing conditions for both continuous and multiplex domains, demonstrating how cross-diffusion and network topology can destabilize homogeneous steady states, leading to diverse Turing patterns. Our findings reveal that over time prey can drive predator extinction, emphasizing the trade-off between food acquisition and safety in predator–prey systems. Additionally, we observe that variations in the average degree of the Lattice can significantly influence the emergence of Turing patterns and the spatial distribution of species.</p></div>","PeriodicalId":792,"journal":{"name":"The European Physical Journal Plus","volume":"140 10","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145316249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Design and Analysis of a Photonic Crystal Nanocavity Biosensor for Glucose Measurement","authors":"Shivesh Kumar, Mrinal Sen","doi":"10.1007/s13538-025-01919-2","DOIUrl":"10.1007/s13538-025-01919-2","url":null,"abstract":"<div><p>This article presents a biosensor based on a two-dimensional rod-in-air photonic crystal slab with a hexagonal lattice, specifically designed for glucose detection in both urine and blood samples. The photonic band structure is studied using the plane-wave expansion (PWE) method, while sensing parameters are analyzed using the finite-difference time-domain (FDTD) method. To enhance device performance, the nanocavity width and radii of silicon rods above the w1 waveguide are optimized. The design provides a wide bandgap and strong optical confinement within the cavity, ensuring high sensitivity to refractive-index variations. The 2D and 3D configurations of the structure are investigated. The sensor demonstrates a noticeable frequency shift and significant variation in transmitted output power in response to minute refractive-index variations. Simulation results confirm high performance, achieving a maximum sensitivity of 850 nm/ RIU, a high quality factor of 1.8956<span>(times )</span>10<span>(^textrm{4})</span>, a low detection limit of 1.115<span>(times )</span>10<span>(^{-5})</span> RIU, and a high figure of merit of <span>(approx 8968)</span> <span>(textrm{RIU}^{-1})</span>. Moreover, the device operates reliably over a wide temperature range (0–80 °C), and the effect of fabrication tolerances on performance is thoroughly analyzed. With its compact footprint of <span>(approx 100)</span> <span>(mu m^2)</span> and excellent sensing characteristics, the proposed sensor is a strong candidate for integration into on-chip photonic circuits.</p></div>","PeriodicalId":499,"journal":{"name":"Brazilian Journal of Physics","volume":"55 6","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145316291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Numerical study on transient unloading fracture mechanism of deep hard rock under 3D stress path induced by drilling and blasting","authors":"Weiqi Wang, Yawei Zhang, Rui Kong, Qihu Wang, Yulong Zhang","doi":"10.1007/s10064-025-04539-x","DOIUrl":"10.1007/s10064-025-04539-x","url":null,"abstract":"<div><p>Transient unloading and rapid stress adjustment of surrounding rock during deep drilling and blasting excavation can easily induce hard rock fracture. Aiming at the dynamic adjustment of the magnitude and direction of the three principal stresses in transient unloading, the proposed spherical discrete element model was used to reveal the influence mechanism of principal stress magnitude, stress rotation and strain rate on transient unloading fracture for the first time. The results show that the transient unloading fracture rate of hard rock is significantly correlated with the magnitude and change trend of principal stress and has obvious inertia. The fracture rate is positively correlated with the maximum differential stress (<i>σ</i><sub>1</sub>-<i>σ</i><sub>3</sub>) and strongly negatively correlated with the minimum principal stress (<i>σ</i><sub>3</sub>). Both transient unloading and stress rotation will induce tensile strain rates with certain inertia and directionality. The stress rotation causes the transient unloading fracture rate significantly related to the strain rate component along the <i>σ</i><sub>3</sub> axis (effective strain rate) rather than the principal strain rate. The maximum differential stress, minimum principal stress and effective strain rate constitute the stress-strain rate conditions for rapid fracture of rock under transient unloading. Increasing <i>σ</i><sub>3</sub> will suppress the rate effect of transient unloading fracture, and there is a threshold (8.4 MPa in this study). The mutual influence between the tensile deformation and fracture of rock under transient unloading is weak and is related to the initial maximum unloading direction and the minimum principal stress direction, respectively, which is obviously different from the static mechanical response.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"84 11","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145316354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
João Alves, Margarida Caldeira, Ana Fernandes, Steffen Ketelhut, Behnam Khanbabaee, Oliver Hupe, Hayo Zutz, Annette Röttger, Teemu Siiskonen, Reetta Nylund, Christelle Adam-Guillermin, Miloš Živanović, Attila Veres, Vladimir Sochor, Mihail-Razvan Ioan, Amra Šabeta, Robert Bernat, Steven Bell, Britt Wens, Denis Glavič-Cindro, Linda Persson
{"title":"Strategic research agenda and roadmaps for radiation protection metrology","authors":"João Alves, Margarida Caldeira, Ana Fernandes, Steffen Ketelhut, Behnam Khanbabaee, Oliver Hupe, Hayo Zutz, Annette Röttger, Teemu Siiskonen, Reetta Nylund, Christelle Adam-Guillermin, Miloš Živanović, Attila Veres, Vladimir Sochor, Mihail-Razvan Ioan, Amra Šabeta, Robert Bernat, Steven Bell, Britt Wens, Denis Glavič-Cindro, Linda Persson","doi":"10.1140/epjp/s13360-025-06898-6","DOIUrl":"10.1140/epjp/s13360-025-06898-6","url":null,"abstract":"<div><p>EURAMET EMPIR 19NET03 <i>supportBSS</i> project entitled <i>Support for a European Metrology Network (EMN) on reliable radiation protection regulation</i>, started in June 2020 and completed in May 2024. One of the tasks of the <i>supportBSS</i> project was the preparation of a Strategic Research Agenda (SRA) based on the identified metrology needs to support the European legislation and regulation in Radiation Protection, and of two Roadmaps for metrology services and capabilities, one under the European Council Directive 2013/59/EURATOM and the other under the EURATOM Treaty. The preparation of the SRA began with a comprehensive literature review including the analysis of the SRAs from the MEENAS Radiation Protection platforms and of strategic documents from other relevant organizations such as IAEA, BIPM-CCRI, HERCA, EURAMET, among others. Information was also collected from the stakeholders at different stages of the project, through organized workshops and a targeted questionnaire, which included specific sections for metrology laboratories and for stakeholders from the different fields of activity. This paper presents the first SRA and Roadmaps developed as key outputs of the <i>supportBSS</i> project, presented to EURAMET as deliverables 4 and 5 at the closure of the project. Taking into account the ongoing technological developments in the field, as well as the fact that EURAMET may use the information collected at its own discretion, it is anticipated the European Metrology Network for Radiation Protection will need to periodically revise and update these documents in the near future.</p></div>","PeriodicalId":792,"journal":{"name":"The European Physical Journal Plus","volume":"140 10","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjp/s13360-025-06898-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145316584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}