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Phosphate-based glasses and glass–ceramics for immobilization of simulated radioactive sludge via microwave sintering: mechanism and performance
IF 1.5 3区 化学
Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-01-23 DOI: 10.1007/s10967-024-09906-8
Kun Huang, Gaiyuan Chen, Xiangyang Li, Yupeng Xie, Yong Liu, Yang Yang, Yuzhen Mai, Keyou Shi
{"title":"Phosphate-based glasses and glass–ceramics for immobilization of simulated radioactive sludge via microwave sintering: mechanism and performance","authors":"Kun Huang,&nbsp;Gaiyuan Chen,&nbsp;Xiangyang Li,&nbsp;Yupeng Xie,&nbsp;Yong Liu,&nbsp;Yang Yang,&nbsp;Yuzhen Mai,&nbsp;Keyou Shi","doi":"10.1007/s10967-024-09906-8","DOIUrl":"10.1007/s10967-024-09906-8","url":null,"abstract":"<div><p>The safe disposal of radioactive sludge generated from the use of nuclear energy is crucial. In this study, the simulated radioactive sludge was successfully vitrified via microwave sintering with the addition of NH<sub>4</sub>H<sub>2</sub>PO<sub>4</sub>, forming Na<sub>2</sub>O-Al<sub>2</sub>O<sub>3</sub>-Fe<sub>2</sub>O<sub>3</sub>-P<sub>2</sub>O<sub>5</sub> (SAIP) system glass, and monazite glass–ceramic was simultaneously produced. The phase evolution, microstructure, density, and chemical stability of the sintered samples were systematically researched. The results indicated that vitrification of the sintered samples can be achieved when the NH<sub>4</sub>H<sub>2</sub>PO<sub>4</sub> content in the radioactive sludge reaches 65 <i>wt</i>.% at temperatures of 1200 °C and 1300 °C. The maximum solid solubility level of Nd in the glass structure was 45 <i>wt</i>.% at 1200 °C and 46 <i>wt</i>.% at 1300 °C. Moreover, the density of the sintered samples ranged from 2.62 to 3.12 g/cm<sup>3</sup>, and they exhibited excellent leaching resistance. The results of this study provide a new perspective for the safe disposal of radioactive sludge.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 2","pages":"1691 - 1702"},"PeriodicalIF":1.5,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Seasonal variations in radon concentrations in groundwater of Dehradun and Haridwar districts, Uttarakhand
IF 1.5 3区 化学
Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-01-23 DOI: 10.1007/s10967-024-09956-y
Gopal Krishan, Sakthivel V, M. S. Rao, S. D. Khobragade, Hukam Singh, Vikas Tomar, Ravikalyan Bussa
{"title":"Seasonal variations in radon concentrations in groundwater of Dehradun and Haridwar districts, Uttarakhand","authors":"Gopal Krishan,&nbsp;Sakthivel V,&nbsp;M. S. Rao,&nbsp;S. D. Khobragade,&nbsp;Hukam Singh,&nbsp;Vikas Tomar,&nbsp;Ravikalyan Bussa","doi":"10.1007/s10967-024-09956-y","DOIUrl":"10.1007/s10967-024-09956-y","url":null,"abstract":"<div><p>This study has checked <sup>222</sup>Rn concentrations in groundwater from 27 sites of Haridwar and Dehradun, Uttarakhand, using the Durridge RAD-7. Seasonal variability reveals that the activity of radon is at its peak during the monsoon. Among the samples, 96.29% exceeded the United States Environmental Protection Agency’s Maximum Contaminant Level for radon during monsoon. The results indicated significant correlations between the concentration of radon and some factors like electrical conductivity and pH. The objective is to compare seasonal radon levels in groundwater, identify significant variations, and assess potential health risks by evaluating them against established safety guidelines.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 2","pages":"1455 - 1469"},"PeriodicalIF":1.5,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Differential cell death pathways in normal and cancerous breast cells response to direct X-ray irradiation and bystander effects
IF 1.5 3区 化学
Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-01-23 DOI: 10.1007/s10967-025-09980-6
Wisam Abdullah Alton, Nursakinah Suardi, Siti Hawa Ngalim, Nor Hafizah Ishak
{"title":"Differential cell death pathways in normal and cancerous breast cells response to direct X-ray irradiation and bystander effects","authors":"Wisam Abdullah Alton,&nbsp;Nursakinah Suardi,&nbsp;Siti Hawa Ngalim,&nbsp;Nor Hafizah Ishak","doi":"10.1007/s10967-025-09980-6","DOIUrl":"10.1007/s10967-025-09980-6","url":null,"abstract":"<div><p>This study investigates distinct cell death pathways in directly irradiated and non-irradiated bystander cells using MCF-7 breast cancer and MCF-10A normal breast cells. Both cell types were exposed to 6 MV X-ray radiation (0–5 Gy). Non-radiated bystander cells were co-cultured with irradiated cells using a transwell system to assess radiation-induced bystander effects. Cell survival was measured by clonogenic assays, and apoptosis, mitotic catastrophe, and senescence were evaluated morphologically. The results showed that bystander and directly irradiated MCF-7 and MCF-10A cells exhibited reduced survival, with a more pronounced effect in irradiated cells. Apoptosis was the dominant cell death pathway in both conditions, with MCF-7 bystander cells exhibiting an earlier onset than MCF-10A cells. Apoptosis rates exceeded 23% at doses above 4 Gy. Mitotic catastrophe was more common at higher doses, with MCF-7 bystander cells responding at 4 Gy and MCF-10A irradiated cells at 4.5 Gy. Senescence was primarily observed in bystander cells, with higher levels in MCF-7 and MCF-10A bystander cells compared to irradiated cells. These findings indicate that while apoptosis and mitotic death are prevalent in directly irradiated cells, bystander cells predominantly experience apoptosis and senescence. The differential responses between cancerous and normal cells highlight the potential for optimizing radiation therapy to target cancer cells more effectively while preserving healthy tissue.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 3","pages":"2291 - 2303"},"PeriodicalIF":1.5,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10967-025-09980-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143707034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparison of microprecipitation methods for polonium source preparation for alpha spectrometry
IF 1.5 3区 化学
Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-01-23 DOI: 10.1007/s10967-024-09970-0
Hilary P. Emerson, Matthew A. RisenHuber, Caleb J. Allen, Jose M. Veleta, Morgan M. Haney, Staci M. Herman, Chelsie L. Beck
{"title":"Comparison of microprecipitation methods for polonium source preparation for alpha spectrometry","authors":"Hilary P. Emerson,&nbsp;Matthew A. RisenHuber,&nbsp;Caleb J. Allen,&nbsp;Jose M. Veleta,&nbsp;Morgan M. Haney,&nbsp;Staci M. Herman,&nbsp;Chelsie L. Beck","doi":"10.1007/s10967-024-09970-0","DOIUrl":"10.1007/s10967-024-09970-0","url":null,"abstract":"<div><p>Detection of radioactive isotopes of polonium is important for understanding natural processes, management and assessment of radioactive waste, and nuclear forensics applications. The most common methods for preparation of polonium samples for alpha spectrometry are electrodeposition and spontaneous deposition which are time consuming. Here, we compare three approaches utilizing rapid microprecipitation from bismuth phosphate, copper sulfide, or tellurium alongside traditional spontaneous deposition methods. From these experiments, results show that copper sulfide microprecipitation recoveries are similar to spontaneous deposition on silver and less time consuming with an approximate five-fold decrease in preparation time, including in the presence of complex matrices like seawater.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 3","pages":"2345 - 2351"},"PeriodicalIF":1.5,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10967-024-09970-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143707035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Field deployable trace radioisotope analysis through combined electrochemical and alpha spectroscopy methods
IF 1.5 3区 化学
Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-01-09 DOI: 10.1007/s10967-024-09942-4
Daryl Giglio, Sung Gu Cho, Ibrahim Oksuz, Jarod Remy, Praneeth Kandlakunta, Vasil Hlinka, Greg Downing, Anne C. Co, Lei R. Cao
{"title":"Field deployable trace radioisotope analysis through combined electrochemical and alpha spectroscopy methods","authors":"Daryl Giglio,&nbsp;Sung Gu Cho,&nbsp;Ibrahim Oksuz,&nbsp;Jarod Remy,&nbsp;Praneeth Kandlakunta,&nbsp;Vasil Hlinka,&nbsp;Greg Downing,&nbsp;Anne C. Co,&nbsp;Lei R. Cao","doi":"10.1007/s10967-024-09942-4","DOIUrl":"10.1007/s10967-024-09942-4","url":null,"abstract":"<div><p>A method for depositing actinides directly onto a 4H-SiC Schottky barrier diode (SBD) detector as a field deployable actinides sensor was developed to enable off-site analysis, shortening the time to obtain critical information such as elements, concentration, and/or isotopic ratio related to the radiological situation. A thin film of Hg was first electrodeposited onto the Pt contact of the SiC diode, followed by chronoamperometric deposition of microgram levels of actinides under conventional control conditions. The 4H-SiC diode maintained consistent functionality through the electrodeposition process and showed resolved alpha-energy spectra that contained accurate isotopic information demonstrating the feasibility of a combined chemical and radiological sensor for field actinide detection and quantification.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 2","pages":"1681 - 1690"},"PeriodicalIF":1.5,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10967-024-09942-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Advances in the separation of uranium and plutonium by electrodeposition in ionic liquids
IF 1.5 3区 化学
Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-01-08 DOI: 10.1007/s10967-024-09975-9
Ting Yu, Hong-ling Li, Hu Zhang
{"title":"Advances in the separation of uranium and plutonium by electrodeposition in ionic liquids","authors":"Ting Yu,&nbsp;Hong-ling Li,&nbsp;Hu Zhang","doi":"10.1007/s10967-024-09975-9","DOIUrl":"10.1007/s10967-024-09975-9","url":null,"abstract":"<div><p>Ionic liquids, known as “green solvents”, have a wide electrochemical window and radiation stability, making them valuable in spent fuel reprocessing. This paper traces the development of ionic liquids, reviews the advances in research on the dissolution and electrochemical behavior of uranium in these solvents, and analyses the factors contributing to their distinct electrochemical behavior. For plutonium, research on its electrodeposition is scarce; however, it has been discovered that it can be electrodeposited in ionic liquids with bis(trifluoromethylsulfonyl)imide (NTf<sub>2</sub><sup>−</sup>) as the anion. Finally, the key research directions in this field are prospected.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 2","pages":"1085 - 1092"},"PeriodicalIF":1.5,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Assessment of natural radioactivity in coal-based thermal power plant area in Cuddalore district, Tamil Nadu
IF 1.5 3区 化学
Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-01-08 DOI: 10.1007/s10967-024-09931-7
G. Poongodi, A. Chandrasekaran
{"title":"Assessment of natural radioactivity in coal-based thermal power plant area in Cuddalore district, Tamil Nadu","authors":"G. Poongodi,&nbsp;A. Chandrasekaran","doi":"10.1007/s10967-024-09931-7","DOIUrl":"10.1007/s10967-024-09931-7","url":null,"abstract":"<div><p>In this study, activity of <sup>238</sup>U,<sup>232</sup>Th, and <sup>40</sup>K was determined in coal, bottom, and fly ash samples collected from in and around the thermal power plant area of Cuddalore district, Tamil Nadu. The mean activity concentration for <sup>238</sup>U, <sup>232</sup>Th, and <sup>40</sup>K in coal were (45 ± 0.4, 28 ± 0.2, and 145 ± 0.5 Bq kg<sup>−1</sup>) and ash samples were (103 ± 0.5, 31 ± 0.5, and 334 ± 0.6 Bq kg<sup>−1</sup>), respectively. To assess the radiation hazards, calculated radiological parameters are compared with permissible limits. This result indicates that the indoor (1.15 × 10<sup>–3</sup> mSv y<sup>−1</sup>) and outdoor (0.56 × 10<sup>–3</sup> mSv y<sup>−1</sup>) excess lifetime cancer risk is slightly greater than the permissible limit and cluster analysis was performed to understand the relation between the variables.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 2","pages":"1299 - 1310"},"PeriodicalIF":1.5,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dynamic experimental study on the radon adsorption performance of clay mineral-based walnut shell activated carbon composites
IF 1.5 3区 化学
Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-01-08 DOI: 10.1007/s10967-024-09961-1
Leijuan Huang, Guojie Chen, Xiongfeng Luo, Dong Xie, Wengao Zeng, Suzhe Li, Zengming Tang
{"title":"Dynamic experimental study on the radon adsorption performance of clay mineral-based walnut shell activated carbon composites","authors":"Leijuan Huang,&nbsp;Guojie Chen,&nbsp;Xiongfeng Luo,&nbsp;Dong Xie,&nbsp;Wengao Zeng,&nbsp;Suzhe Li,&nbsp;Zengming Tang","doi":"10.1007/s10967-024-09961-1","DOIUrl":"10.1007/s10967-024-09961-1","url":null,"abstract":"<div><p>Activated carbon was modified by compounding with three different clay minerals (HNTs, MMT, AT) at a 1% mass ratio, aiming to boost the activated carbon’s radon adsorption capacity. Dynamic experimental studies were conducted to analyze their adsorption performance. HNTs/AC outperformed AC, with an 81% increase in the radon adsorption coefficient and a remarkable 274% expansion in its micropore specific surface area, indicating a positive correlation with radon adsorption capacity. The dynamic radon adsorption by HNTs/AC composites is primarily driven by physical adsorption, which involves two processes:surface adsorption and slow intra-pore diffusion, with surface adsorption being the predominant mechanism.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 3","pages":"2443 - 2454"},"PeriodicalIF":1.5,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10967-024-09961-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143707096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Studying the relevance of mechanical process to the geochemical evolution in bentonite buffer of repositories for high-level radioactive waste
IF 1.5 3区 化学
Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-01-07 DOI: 10.1007/s10967-024-09955-z
Xiaoyuan Cao, Liange Zheng, Litang Hu
{"title":"Studying the relevance of mechanical process to the geochemical evolution in bentonite buffer of repositories for high-level radioactive waste","authors":"Xiaoyuan Cao,&nbsp;Liange Zheng,&nbsp;Litang Hu","doi":"10.1007/s10967-024-09955-z","DOIUrl":"10.1007/s10967-024-09955-z","url":null,"abstract":"<div><p>In deep geological repositories for high-level radioactive waste, the bentonite buffer undergoes thermal, hydrological, mechanical, and chemical (THMC) processes. This study aims to clarify the significance of the mechanical process in the THC evolution of bentonite by comparing a THC model with a coupled THMC model for a generic repository. The comparison shows that the impact of the mechanical process on hydrological and geochemical changes is significant during the early unsaturated stage but diminishes in the later stages once the bentonite is fully saturated. This suggests that considering mechanical processes may not be essential for long-term radionuclide migration models.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 2","pages":"1343 - 1357"},"PeriodicalIF":1.5,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bioaccumulation of 238U and 239+240Pu in bivalve mollusks from different coastal areas of Mexico
IF 1.5 3区 化学
Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-01-07 DOI: 10.1007/s10967-024-09922-8
M. G. Almazán Torres, M. S. Almazán Martínez, E. Ordoñez Regil, A. Ramírez Villalva
{"title":"Bioaccumulation of 238U and 239+240Pu in bivalve mollusks from different coastal areas of Mexico","authors":"M. G. Almazán Torres,&nbsp;M. S. Almazán Martínez,&nbsp;E. Ordoñez Regil,&nbsp;A. Ramírez Villalva","doi":"10.1007/s10967-024-09922-8","DOIUrl":"10.1007/s10967-024-09922-8","url":null,"abstract":"<div><p>Uranium and plutonium isotopes were determined in bivalve mollusks from several coastal areas of Mexico. Four specimens of clam (Gallo, Chocolata, Chirla and Pata de Mula) and one of oyster (American) were acquired at a local distribution center. The radionuclides were extracted and purified using radiochemical procedures and measured by alpha spectrometry. In most cases, the activity concentration values of uranium and plutonium ​​were greater in the shell than in the soft body of bivalves. The activity concentrations of <sup>238</sup>U and <sup>239+240</sup>Pu in the bivalve shell were between 0.21 and 1.29 Bq/kg, and 0.02 and 0.21 Bq/kg, respectively. The values ​​for <sup>238</sup>U and <sup>239+240</sup>Pu in the soft body of bivalves were between 0.06 and 1.14 Bq/kg, and 0.004 and 0.09 Bq/kg, respectively. Hierarchical cluster analyses applied to data analysis revealed that the majority of samples were grouped into two clusters identified as Gulf of Mexico and Mexican Pacific due to their origin. Hence, the differences in activity concentrations may be associated with the content of the radionuclides in the medium where the specimen was developed. The accumulation of actinide elements in bivalve mollusks may be useful to evaluate the level of contamination due to heavy metals in the Mexican marine environment.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 2","pages":"1649 - 1659"},"PeriodicalIF":1.5,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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