Nuclear Engineering and Technology最新文献_第8页

Feasibility of nuclear monitoring for pyro-process using radiation measurement 利用辐射测量法监测高温核过程的可行性

IF 2.6 3区工程技术

Nuclear Engineering and Technology Pub Date : 2025-03-07 DOI: 10.1016/j.net.2025.103572

YongDeok Lee, Jonghui Han

引用次数: 0

Advancements in primary radiation damage models and SRIM simulations: A review of radiation damage predictions 初级辐射损伤模型和SRIM模拟的进展：辐射损伤预测综述

IF 2.6 3区工程技术

Nuclear Engineering and Technology Pub Date : 2025-03-07 DOI: 10.1016/j.net.2025.103570

Zulfiqar Ali , Furong Liu , Yinghao Wang , Hafiz Ghullam Rasool , Feiying Wang , Muhammad Haseeb

{"title":"Advancements in primary radiation damage models and SRIM simulations: A review of radiation damage predictions","authors":"Zulfiqar Ali , Furong Liu , Yinghao Wang , Hafiz Ghullam Rasool , Feiying Wang , Muhammad Haseeb","doi":"10.1016/j.net.2025.103570","DOIUrl":"10.1016/j.net.2025.103570","url":null,"abstract":"<div><div>Evaluating radiation damage in materials and devices is vital for their use in extreme environments, but accurate predictions are challenging due to uncertainties in traditional models like Primary Radiation Damage Models (PRDMs) and modern simulations such as Stopping and Range of Ions in Matter (SRIM). This paper reviews essential methodologies for predicting radiation damage, including the Kinchin-Pease (K-P), Norgett-Robinson-Torrens dpa (NRT-dpa), athermal recombination corrected dpa (arc-dpa), replacement per atom dpa (rpa-dpa), and Chen-Bernard dpa (CB-dpa) models. It underscores the importance of athermal recombination, empirical validations, and practical applications. The constraints of SRIM are discussed, emphasizing the inaccuracies in the Lindhard, Scharff, and Schiott (LSS) stopping powers and energy transfer processes in Full Cascade (F-C) and Quick Calculation (Q-C) modes. Key factors like threshold displacement energy, electronic stopping powers, density, and binding energy are also summarized. Finally, the key findings and prospects for future research are presented. This review offers insights into the current state of radiation damage modeling, providing guidance for applications in nuclear, aerospace, and other radiation-related fields.</div></div>","PeriodicalId":19272,"journal":{"name":"Nuclear Engineering and Technology","volume":"57 8","pages":"Article 103570"},"PeriodicalIF":2.6,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143839577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multivariate model predictive control study of large scale PWR nuclear power plant based on the asymptotic method 基于渐近方法的大型压水堆核电站多变量模型预测控制研究

IF 2.6 3区工程技术

Nuclear Engineering and Technology Pub Date : 2025-03-07 DOI: 10.1016/j.net.2025.103573

Wentao Wang , Jinhong Mo , Peiwei Sun, Xinyu Wei

{"title":"Multivariate model predictive control study of large scale PWR nuclear power plant based on the asymptotic method","authors":"Wentao Wang , Jinhong Mo , Peiwei Sun, Xinyu Wei","doi":"10.1016/j.net.2025.103573","DOIUrl":"10.1016/j.net.2025.103573","url":null,"abstract":"<div><div>Third-generation PWR nuclear power plants face increased grid peaking tasks, demanding enhanced load following capabilities of the reactor control system. The MPC algorithm, owing to its advantage, more effectively addresses grid peaking challenges. Therefore, a model predictive control algorithm based on the asymptotic method is utilized to research advanced control of PWR models. Initially, the paper conducts identification experiments based on asymptotic identification method and the characteristics of PWR. A reduced-order model is derived from a higher-order model based on identification data and objective function minimization. Model order selection is guided by the asymptotic criterion. The identified model demonstrates good performance in the frequency domain according to the model validation theory of asymptotic method. In time domain validation, the error percentage of the model output is low and the step response exhibits correct direction. Subsequently, a model predictive controller is designed based on the identification model, and simulation analysis is conducted for four working conditions respectively. Under load step conditions, the MPC controller markedly reduced both regulation time and steady-state error compared to the original controller, achieving a complete elimination of steady-state error and over 75 % reduction in regulation time for average coolant temperature control. Concurrently, under conditions of load ramping, the MPC controller achieved a significant reduction of over 99 % in the ITSE as compared to the original controller. However, it should be noted that the output frequency and intensity are higher for MPC controller compared to the original controller.</div></div>","PeriodicalId":19272,"journal":{"name":"Nuclear Engineering and Technology","volume":"57 8","pages":"Article 103573"},"PeriodicalIF":2.6,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143839583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Studies of laser cleaning and decontamination in liquid and polymerized media 液体和聚合介质的激光清洗和去污研究

IF 2.6 3区工程技术

Nuclear Engineering and Technology Pub Date : 2025-03-05 DOI: 10.1016/j.net.2025.103569

Maxim Cheban , Konstantin Scherbakov , Dmitry Mamonov , Pavel Parabin , Serafima Filatova , Yaroslav Kravchenko , Sergey Klimentov , Maxim Chichkov

{"title":"Studies of laser cleaning and decontamination in liquid and polymerized media","authors":"Maxim Cheban , Konstantin Scherbakov , Dmitry Mamonov , Pavel Parabin , Serafima Filatova , Yaroslav Kravchenko , Sergey Klimentov , Maxim Chichkov","doi":"10.1016/j.net.2025.103569","DOIUrl":"10.1016/j.net.2025.103569","url":null,"abstract":"<div><div>The study highlights the importance of developing new methods for decontaminating surface radioactive contamination caused by the accumulation of substances such as uranium and plutonium on equipment. Pulsed laser cleaning, which is particularly effective in combination with liquid media, is seen as a promising solution. To safely test the technology, preliminary experiments were carried out on model samples of AISI 321 stainless steel contaminated with cerium oxide, and then on real contaminants of uranium and plutonium salts. Different liquids were used to minimize aerosol release and prevent surface overheating: water, acetone, isopropyl alcohol and polyvinyl alcohol (PVA) solution. Laser cleaning in PVA showed high efficiency, removing more than 90 % of the contaminants in a single pass. Optimal laser modes minimized structural changes to the material surface. The PVA reliably fixes contaminants and, after polymerization, is easily removed from the sample as a solid film.</div></div>","PeriodicalId":19272,"journal":{"name":"Nuclear Engineering and Technology","volume":"57 8","pages":"Article 103569"},"PeriodicalIF":2.6,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143682067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Naturally-switching velocity and admittance control (NSVAC) for bilateral teleoperation in CFETR remote handling CFETR遥控操作中双边遥控的自然切换速度导纳控制

IF 2.6 3区工程技术

Nuclear Engineering and Technology Pub Date : 2025-03-04 DOI: 10.1016/j.net.2025.103495

Jun Zhang , Ke Wu , Xuanchen Zhang , Hao Han , Tao Zhang , Wei Zhang , Yong Cheng , Kun Lu

{"title":"Naturally-switching velocity and admittance control (NSVAC) for bilateral teleoperation in CFETR remote handling","authors":"Jun Zhang , Ke Wu , Xuanchen Zhang , Hao Han , Tao Zhang , Wei Zhang , Yong Cheng , Kun Lu","doi":"10.1016/j.net.2025.103495","DOIUrl":"10.1016/j.net.2025.103495","url":null,"abstract":"<div><div>The bilateral control method serves as the primary means of interaction for remote handling (RH) in CFETR, effectively enhancing operations performance during interaction with the environment. However, traditional control methods excessively rely on the system's inherent performance and the operator skill, making it necessary to introduce the admittance control strategy to further enhance operational safety. This paper adopts the Naturally-Switching Velocity and Admittance Control (NSVAC) method, ensuring operational safety through a combination of velocity and admittance control. In this study, an analysis was conducted on the variations in interaction forces at different positions during the RH process. When the force is below a predetermined value, velocity control was applied; otherwise, admittance control was used. In order to naturally and smooth switching between the two modes, the control law and switch function were provided. Subsequently, the system behavior using NSVAC is analyzed and the stability analysis based on passivity control theory is conducted. Finally, the effectiveness of the NSVAC method is validated through simulation and experiments. The results strongly indicate that NSVAC not only meets practical operational requirements but also effectively guarantees the safety of operations throughout the process.</div></div>","PeriodicalId":19272,"journal":{"name":"Nuclear Engineering and Technology","volume":"57 7","pages":"Article 103495"},"PeriodicalIF":2.6,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143681661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on superheated steam discharge: Leakage process with friction and jet impingement process 过热蒸汽排放的研究：摩擦泄漏过程和射流冲击过程

IF 2.6 3区工程技术

Nuclear Engineering and Technology Pub Date : 2025-03-04 DOI: 10.1016/j.net.2025.103568

Tao Zhang , Qincheng Bi , Jinle Zhao , Fan Feng , Zhendong Yang , Miao Gui

{"title":"Research on superheated steam discharge: Leakage process with friction and jet impingement process","authors":"Tao Zhang , Qincheng Bi , Jinle Zhao , Fan Feng , Zhendong Yang , Miao Gui","doi":"10.1016/j.net.2025.103568","DOIUrl":"10.1016/j.net.2025.103568","url":null,"abstract":"<div><div>The leakage and jet impact characteristics of steam play a crucial role in the safety analysis of nuclear power plant accidents. The prediction model of leakage flow is crucial for Leak-before-break (LBB) analysis. Simultaneously, the study of jet impact process is fundamental for preventing damage to surrounding system equipment. In this paper, two cross-sectional shapes passages are utilized: circular with diameters of 6∼8 mm and elliptical with dimensions of 8∗5.26 mm, featuring length-to-diameter ratios of 5.2–105. The study focuses on superheated steam ranging from 4.6 to 7.5 MPa, measuring leakage rates under various inlet and passage conditions, pressure drops along the passage, and the impact force exerted by the jetted superheated steam on a 400 mm square plate. In experiments, it was found that the pressure drop trend in the flow passage of steam is crucial for predicting the leakage flow rate. The isentropic model was revised based on experimental data, resulting in a model that better fits the experimental results than the original isentropic model and a simpler form compared to Yang's one-dimensional friction model. The study also revealed that the length-to-diameter ratio and related friction effect significantly affect the leakage flow rate and steam jet impingement process. The variation pattern of impingement force coefficient was summarized based on experimental data. Due to the visualization of the experiment, some special phenomena during the experimental process were also recorded.</div></div>","PeriodicalId":19272,"journal":{"name":"Nuclear Engineering and Technology","volume":"57 8","pages":"Article 103568"},"PeriodicalIF":2.6,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143682203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessment of natural radioactivity and radiological risks in soil from artisanal gold mining sites in West Pokot, Kenya 肯尼亚西波科特手工金矿土壤天然放射性和放射性风险评估

IF 2.6 3区工程技术

Nuclear Engineering and Technology Pub Date : 2025-03-01 DOI: 10.1016/j.net.2025.103563

Elijah Pkemoi, Elijah Mwangi, Michael Mangala

{"title":"Assessment of natural radioactivity and radiological risks in soil from artisanal gold mining sites in West Pokot, Kenya","authors":"Elijah Pkemoi, Elijah Mwangi, Michael Mangala","doi":"10.1016/j.net.2025.103563","DOIUrl":"10.1016/j.net.2025.103563","url":null,"abstract":"<div><div>Artisanal gold mining in West Pokot, Kenya, thrives due to rising global demand and accessibility, attracting local and regional stakeholders. Despite its economic significance, miners face radiation exposure from natural radioactive elements, yet awareness of these health risks remains low. This study aims to assess radioactivity in soil in order to understand the radiological risks associated with artisanal gold mining. The activity concentrations in thirty-two soil samples were measured using gamma-ray spectrometry. The results obtained for <sup>226</sup>Ra, <sup>232</sup>Th, and <sup>40</sup>K show average concentrations of 29 ± 6, 30 ± 10, and 516 ± 70 Bq kg<sup>−1</sup> respectively. The results of radioecological hazards: radium equivalent, external hazard, absorbed dose rate, annual effective dose equivalent, annual gonadal equivalent dose, and excess lifetime cancer risks were determined to be 110 ± 19 Bq kg<sup>−1</sup>, 0.30 ± 0.05, 0.38 ± 0.07, 53 ± 12 nGy h<sup>−1</sup>, 0.06 ± 0.01 mSv y<sup>−1</sup>, 375 ± 59 μSv y<sup>−1</sup>, and 0.23 ± 0.05 respectively, all below the threshold limits, except for annual gonadal equivalent dose. The low levels of radionuclides indicate a minimal risk of radiation exposure. These results can help shape artisanal mining regulations by aligning them with national standards, worker education and routine radiation monitoring.</div></div>","PeriodicalId":19272,"journal":{"name":"Nuclear Engineering and Technology","volume":"57 8","pages":"Article 103563"},"PeriodicalIF":2.6,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143682200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bi2O3 additive effects on gamma radiation shielding properties of 45SiO2-20B2O3-23Na2O3-9CaO-3Al2O3 glass Bi2O3添加剂对45SiO2-20B2O3-23Na2O3-9CaO-3Al2O3玻璃屏蔽γ辐射性能的影响

IF 2.6 3区工程技术

Nuclear Engineering and Technology Pub Date : 2025-03-01 DOI: 10.1016/j.net.2025.103545

Mohammad Rezvani , Hossein Javid Ghezelgechi

{"title":"Bi2O3 additive effects on gamma radiation shielding properties of 45SiO2-20B2O3-23Na2O3-9CaO-3Al2O3 glass","authors":"Mohammad Rezvani , Hossein Javid Ghezelgechi","doi":"10.1016/j.net.2025.103545","DOIUrl":"10.1016/j.net.2025.103545","url":null,"abstract":"<div><div>Radiation poses a significant threat to living organisms, necessitating the development of effective shielding materials. This study investigates the properties of glass materials with varying proportions of SiO<sub>2</sub> and B<sub>2</sub>O<sub>3</sub>, selecting 45SiO<sub>2</sub>–20B<sub>2</sub>O<sub>3</sub>–23Na<sub>2</sub>O–9CaO–3Al<sub>2</sub>O<sub>3</sub> (mol%) as the base composition. X-ray diffraction analysis confirmed the amorphous nature of the prepared glasses, while differential thermal analysis (DTA) determined glass transition temperatures (Tg). Precise density measurements were conducted to validate the structural findings. Monte Carlo N-Particle (MCNP) simulations were employed to assess the photon energy absorbance characteristics of the glasses, revealing that adding Bi<sub>2</sub>O<sub>3</sub>, up to 15 mol% in the GSB2-15 glass, significantly enhances gamma-ray shielding properties. Key results show that increasing Bi<sub>2</sub>O<sub>3</sub> content from 0 to 15 mol% improves photon energy absorption, with the GSB2-15 glass achieving a density of 2.691 g/cm<sup>3</sup> and a Tg of 533.19 °C, both superior to those of other compositions. Fourier Transform Infrared (FTIR) and Raman spectroscopy further demonstrated that GSB2-15 maintains structural stability under gamma radiation doses up to 3.98 Gy, with minimal bond disruption. These findings establish the GSB2-15 glass, with 15 mol% Bi<sub>2</sub>O<sub>3</sub>, as a highly effective candidate for radiation shielding applications.</div></div>","PeriodicalId":19272,"journal":{"name":"Nuclear Engineering and Technology","volume":"57 8","pages":"Article 103545"},"PeriodicalIF":2.6,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143682199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of a time-of-flight spectrometer for characterizing the quasi-monoenergetic neutron beam driven by a 30-MeV proton cyclotron 30兆电子伏特质子回旋加速器驱动的准单能中子束飞行时间谱仪的研制

IF 2.6 3区工程技术

Nuclear Engineering and Technology Pub Date : 2025-03-01 DOI: 10.1016/j.net.2025.103553

Tzu-Hsiang Lin , How-Ming Lee , Kuo-Yuan Chu , Ting-Shien Duh , Hui-Yu Tsai , Kuan-Che Lan , Ming-Wei Lin

{"title":"Development of a time-of-flight spectrometer for characterizing the quasi-monoenergetic neutron beam driven by a 30-MeV proton cyclotron","authors":"Tzu-Hsiang Lin , How-Ming Lee , Kuo-Yuan Chu , Ting-Shien Duh , Hui-Yu Tsai , Kuan-Che Lan , Ming-Wei Lin","doi":"10.1016/j.net.2025.103553","DOIUrl":"10.1016/j.net.2025.103553","url":null,"abstract":"<div><div>By developing a time-of-flight (TOF) spectrometer, this study experimentally examines the spectrum of a quasi-monoenergetic neutron (QMN) source generated by irradiating 30-MeV protons from a cyclotron onto a beryllium target. The repetitive irradiation of proton bunches on the target at a radio frequency results in periodic distributions of coincidence events between gamma-ray- and neutron-related signals, necessitating a specific method to extract the neutron spectrum from the TOF measurements. An effective time window of 13.67 ns in the TOF spectrum, corresponding to the period between proton bunches, was identified for analyzing neutrons with energies ranging from 16.19 to 30 MeV. The retrieved neutron spectrum distinctly exhibits a peak at 26 MeV, verifying the spectrum simulated by a Monte Carlo model and supporting the QMN beam’s use in downstream applications. Additionally, a fast-timing scintillator module and its associated algorithm were developed to measure the proton bunch duration on a sub-nanosecond scale, enabling the estimation of the energy resolution in the spectrum, approximately 8% at 30 MeV. These techniques, developed for characterizing the neutron spectrum and proton bunch duration, significantly enhance the quality assurance processes for operating a proton-cyclotron-based neutron source.</div></div>","PeriodicalId":19272,"journal":{"name":"Nuclear Engineering and Technology","volume":"57 8","pages":"Article 103553"},"PeriodicalIF":2.6,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143682573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

VLC-enhanced autonomous rail vehicle for nuclear waste disposal 用于核废料处理的vlc增强型自主轨道车辆

IF 2.6 3区工程技术

Nuclear Engineering and Technology Pub Date : 2025-02-28 DOI: 10.1016/j.net.2025.103543

Zdenek Slanina , Lukas Danys , Rene Jaros , Filip Krupa , Martin Dratnal , Daniel Polak , Radek Martinek

{"title":"VLC-enhanced autonomous rail vehicle for nuclear waste disposal","authors":"Zdenek Slanina , Lukas Danys , Rene Jaros , Filip Krupa , Martin Dratnal , Daniel Polak , Radek Martinek","doi":"10.1016/j.net.2025.103543","DOIUrl":"10.1016/j.net.2025.103543","url":null,"abstract":"<div><div>This paper investigates the potential of visible light communication (VLC) for autonomous railway vehicles (ARVs) engaged in nuclear waste disposal. The research focuses on designing an ARV system equipped with VLC technology to ensure safe, reliable communication in hazardous environments, such as deep geological repositories. Initial testing demonstrated that VLC can effectively maintain communication between ARV components over distances of up to 30 m, even when operating at limiting angles. In this study, angles of 60° and 75° were tested, corresponding to the angles of the curves of the tested route. With 4-QAM modulation it was possible to measure at a distance of approximately 5.5 m with an angle of 75°. The system has shown promise in addressing key challenges, such as high radiation levels and confined spaces, where traditional RF-based communication systems may fail. The results indicate that VLC could significantly improve the safety and efficiency of ARV operations in nuclear waste disposal, offering advantages in terms of robustness and reliability. Future work will focus on integrating VLC more deeply into ARV control systems, further testing in real-world environments, and exploring its application nuclear waste management.</div></div>","PeriodicalId":19272,"journal":{"name":"Nuclear Engineering and Technology","volume":"57 8","pages":"Article 103543"},"PeriodicalIF":2.6,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143682143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0