Nuclear Engineering and Technology最新文献

Bi-LSTM neural network for enhanced radiotherapy: Detection of tissue parameters 用于增强放疗的Bi-LSTM神经网络：组织参数的检测

IF 2.6 3区工程技术

Nuclear Engineering and Technology Pub Date : 2025-09-11 DOI: 10.1016/j.net.2025.103906

Javad Tayebi , Ali Rezaie , Mohammadreza Rezaie , Mehdi Hassanpour , Mohammad Rashed Iqbal Faruque

{"title":"Bi-LSTM neural network for enhanced radiotherapy: Detection of tissue parameters","authors":"Javad Tayebi , Ali Rezaie , Mohammadreza Rezaie , Mehdi Hassanpour , Mohammad Rashed Iqbal Faruque","doi":"10.1016/j.net.2025.103906","DOIUrl":"10.1016/j.net.2025.103906","url":null,"abstract":"<div><div>This study aims to simulate brain tissue and its elements using the MCNPX nuclear code and analyze X-ray emissions for tumor detection. This non-invasive approach offers a promising method for the accurate diagnosis of brain tumors, enabling timely treatment. Brain tissue, including tumor regions, was simulated at 70 keV, a common radiology energy. X-ray emissions were evaluated for variations in tissue density, elemental composition, thickness, and depth. The emitted X-ray doses were divided into 100 segments for detailed analysis. These data were then processed using an optimized Bi-LSTM neural network. This approach enabled precise segmentation and analysis of the X-ray data, improving tumor detection accuracy. Results showed significant differences in X-ray emission patterns between normal and tumor tissues. Tumor tissues exhibited distinct signatures, which were effectively captured and analyzed by the Bi-LSTM model. The model distinguished tissue types based on density, composition, thickness, and depth (1–5 cm). This study demonstrates that combining X-ray emission analysis with a Bi-LSTM neural network provides an effective method for brain tumor detection. The proposed approach may enhance non-invasive diagnostic capabilities and improve patient outcomes through early detection.</div></div>","PeriodicalId":19272,"journal":{"name":"Nuclear Engineering and Technology","volume":"58 1","pages":"Article 103906"},"PeriodicalIF":2.6,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145045918","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

Modifier effect of BaTiO3 nanoparticles on morphology, structural, and radiation shielding characteristics of Li2O–BaTiO3–B2O3: TiO2 glasses 纳米BaTiO3改性剂对li20 - BaTiO3 - b2o3: TiO2玻璃形貌、结构及辐射屏蔽特性的影响

IF 2.6 3区工程技术

Nuclear Engineering and Technology Pub Date : 2025-09-11 DOI: 10.1016/j.net.2025.103905

Linganaboina Srinivasa Rao

{"title":"Modifier effect of BaTiO3 nanoparticles on morphology, structural, and radiation shielding characteristics of Li2O–BaTiO3–B2O3: TiO2 glasses","authors":"Linganaboina Srinivasa Rao","doi":"10.1016/j.net.2025.103905","DOIUrl":"10.1016/j.net.2025.103905","url":null,"abstract":"<div><div>A particular glass composition of (40-x)Li<sub>2</sub>O–xBaTiO<sub>3</sub>–59B<sub>2</sub>O<sub>3</sub>: 1TiO<sub>2</sub> (where x = 0, 5, 10, 15, 20) in mol % was chosen. The XRD and SEM studies confirmed amorphous nature of the glasses. The EDS revealed peaks at 0.2 keV, 0.5 keV, 4.5 keV, and 4.9 keV corresponding to B, O, Ba, Ti elements respectively. FTIR spectra revealed glass structure by means of [BO<sub>3</sub>], [BO<sub>4</sub>], [TiO<sub>4</sub>], and [TiO<sub>6</sub>] units. Prominent bump in the MAC value for all BT<sub>x</sub> samples (except BT<sub>0</sub>) was detected at photon energy ≈37.4 keV due to presence of Ba (Z = 56). The glass BT<sub>20</sub> exhibited the highest MAC (9.00 cm<sup>2</sup>/g), lowest HVL (0.0244 cm), lowest TVL (0.0352 cm) and shortest MFP (0.0352 cm) at 0.01 MeV, indicating its superior shielding performance. Increasing BaTiO<sub>3</sub> content enhanced the glass density from 2.352 to 3.154 g/cm<sup>3</sup>, leading to a significant improvement in gamma ray attenuation. The sample BT<sub>0</sub> with the highest Li<sub>2</sub>O content (40 mol %) exhibited the best neutron attenuation (Σ<sub>R</sub>/ρ = 0.1149 cm<sup>−1</sup>), while BT<sub>20</sub> had the lowest (Σ<sub>R</sub>/ρ = 0.0786 cm<sup>−1</sup>). Therefore, Li<sub>2</sub>O-rich glasses are better for thermal (0.0254 eV) and fast (4 MeV) neutron shielding, while BaTiO<sub>3</sub>-rich glasses are better for gamma shielding for mixed radiation fields.</div></div>","PeriodicalId":19272,"journal":{"name":"Nuclear Engineering and Technology","volume":"58 1","pages":"Article 103905"},"PeriodicalIF":2.6,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145045916","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

Comparison of three LDR prostate brachytherapy treatment plans 三种LDR前列腺近距离治疗方案的比较

IF 2.6 3区工程技术

Nuclear Engineering and Technology Pub Date : 2025-09-11 DOI: 10.1016/j.net.2025.103901

M. Orabi

{"title":"Comparison of three LDR prostate brachytherapy treatment plans","authors":"M. Orabi","doi":"10.1016/j.net.2025.103901","DOIUrl":"10.1016/j.net.2025.103901","url":null,"abstract":"<div><div>In a previous work, the prostate brachytherapy was studied using the radionuclide cesium-131. Here in this study, we aim to perform a comparison between the three famous treatment plans of doing prostate brachytherapy. The low-dose-rate (LDR) category is being considered with the three radionuclides iodine-125, cesium-131 and palladium-103. The internal radiation doses delivered during the brachytherapy process are estimated for a number of organs of the body. The estimations are made by using some MCNP5 (Monte Carlo N-Particle version 5) simulation codes that utilize the ORNL-MIRD (Oak Ridge National Laboratory - Medical Internal Radiation Dose) phantom of human-body. To assess how much the other healthy organs could be affected by the brachytherapy process, the rates of radiation doses are estimated not only for the target organ, namely the prostate, but for some other organs in the near area as well. The sources of radiation (seeds) are assumed point sources. Different numbers of seeds with different radioactivities are used to cover the entire clinical ranges. It is found that the calculated dose rates and periods of delivering the prescribed doses are within the expectations.</div></div>","PeriodicalId":19272,"journal":{"name":"Nuclear Engineering and Technology","volume":"58 1","pages":"Article 103901"},"PeriodicalIF":2.6,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145045913","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

Feasibility study of the hemispherical gamma radiation monitoring system (H-RMS) 半球形伽马辐射监测系统（H-RMS）可行性研究

IF 2.6 3区工程技术

Nuclear Engineering and Technology Pub Date : 2025-09-11 DOI: 10.1016/j.net.2025.103900

Seongyeon Lee, Yoon Soo Chung, Min Kyu Baek, Yong Hyun Chung

{"title":"Feasibility study of the hemispherical gamma radiation monitoring system (H-RMS)","authors":"Seongyeon Lee, Yoon Soo Chung, Min Kyu Baek, Yong Hyun Chung","doi":"10.1016/j.net.2025.103900","DOIUrl":"10.1016/j.net.2025.103900","url":null,"abstract":"<div><div>As industrial radiation applications grow rapidly, the radiation monitoring systems are needed to ensure public and environmental safety. A variety of monitoring systems have been developed and used to detect or identify the location and type of radioactive sources. However, it was difficult to identify and locate radionuclides over a large area in real-time.</div><div>In this study, a Hemispherical Gamma Radiation Monitoring System (H-RMS) was developed. A detector row, consisting of 16 detector modules was implemented, with each module composed of a GAGG(Ce), a lead collimator, and a Silicon Photomultiplier (SiPM). It was mounted on an optical table and rotated 180° at 10° intervals to monitor a 2π Field of View (FOV). The performance of each detector module was evaluated by measuring energy resolution and gamma count using <sup>57</sup>Co, <sup>137</sup>Cs and <sup>60</sup>Co radioactive sources. The reconstructed images indicate that the H-RMS is feasible and effective for accurate localization and identification of radioactive materials within a 2π FOV. However, the distance between the source and the H-RMS cannot be determined, preventing the accurate measurement of radioactivity. For further study, the implementation of all detector modules will be necessary.</div></div>","PeriodicalId":19272,"journal":{"name":"Nuclear Engineering and Technology","volume":"58 1","pages":"Article 103900"},"PeriodicalIF":2.6,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145045917","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

Degradation and failure mechanisms of P-GaN HEMTs in single and complex radiation environments P-GaN hemt在单一和复杂辐射环境中的降解和失效机制

IF 2.6 3区工程技术

Nuclear Engineering and Technology Pub Date : 2025-09-10 DOI: 10.1016/j.net.2025.103902

Yong-chang Sun , Ying Wang , Wan-zhao Cui , Huo-lin Huang , Yan-xing Song , Fei Cao

{"title":"Degradation and failure mechanisms of P-GaN HEMTs in single and complex radiation environments","authors":"Yong-chang Sun , Ying Wang , Wan-zhao Cui , Huo-lin Huang , Yan-xing Song , Fei Cao","doi":"10.1016/j.net.2025.103902","DOIUrl":"10.1016/j.net.2025.103902","url":null,"abstract":"<div><div>In this work, the mechanisms of single-event burnout (SEB) failure and total ionizing dose effect (TID) in P-type gallium nitride gate high electron mobility transistors (P-GaN HEMTs) were investigated based on experiments and simulation. In the SEB experiments, we observed the occurrence of SEB when the drain-source voltage was 350 V with tantalum (Ta) ions irradiation. The simulation results indicate that the local electric field enhancement due to charge enhancement effect and charge collection phenomenon as well as the intensification of collisional ionization are the main causes of device damage and failure. In the TID experiments, three groups of samples with different gate voltage bias were irradiated using Co<sup>60</sup>-γ rays. Positive threshold voltage shifts and gate leakage current increasing are observed. We believe that electron and hole trapping at the P-GaN/AlGaN interface and in the AlGaN barrier layer is the main reason for the threshold voltage shift. In addition, we subjected one of the three groups of samples that had undergone TID experiments to Ta ion single-event effect (SEE) experiments once again. The synergistic experimental results show the superposition effect of the two experiments.</div></div>","PeriodicalId":19272,"journal":{"name":"Nuclear Engineering and Technology","volume":"58 1","pages":"Article 103902"},"PeriodicalIF":2.6,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145027214","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

The study of characteristics of flat panel detectors without semiconductor conversion layers for therapeutic high-energy X-ray radiation 治疗性高能x射线辐射无半导体转换层平板探测器特性研究

IF 2.6 3区工程技术

Nuclear Engineering and Technology Pub Date : 2025-09-10 DOI: 10.1016/j.net.2025.103907

Dong Ho Lee , Sangmin Lee , Hyounggun Lee , Kyunghoon Yoon , Kang Heo , Yeong Jun Han , Dooho Kim , Jeyong Jeon , Hyeon Jae Yu , Dong Wook Kim , Jin Sung Kim

{"title":"The study of characteristics of flat panel detectors without semiconductor conversion layers for therapeutic high-energy X-ray radiation","authors":"Dong Ho Lee , Sangmin Lee , Hyounggun Lee , Kyunghoon Yoon , Kang Heo , Yeong Jun Han , Dooho Kim , Jeyong Jeon , Hyeon Jae Yu , Dong Wook Kim , Jin Sung Kim","doi":"10.1016/j.net.2025.103907","DOIUrl":"10.1016/j.net.2025.103907","url":null,"abstract":"<div><div>We evaluated a novel 2-D flat-panel detector (FPD) adapting it for megavoltage (MV) therapeutic imaging and radiation QA. The prototype uses a thick dielectric layer to create a semi-transmissive structure, changing and eliminating structure conventional semiconductor conversion layers. Performance was tested on a Harmony Pro LINAC (Elekta, Sweden) with a 20 × 20 cm<sup>2</sup> field at an SSD of 100 cm. Datasets were acquired at 50–300 MU for 6, 10, and 15 MV beams. Linearity with MU was excellent (R<sup>2</sup> = 0.99). Reproducibility and repeatability showed coefficients of variation of 1–2 %. In energy dependency, the 6/10 MV response ratio remained near 80 %, rising to 84 % at 300 MU, while the 6/15 MV ratio was 70.8 % at 50 MU and stabilized at 75–80 % thereafter, with R<sup>2</sup> > 0.99 for all energies. Spatial resolution satisfied AAPM TG-142 tolerances. The detector demonstrates performance characteristics comparable to those of conventional electronic portal imaging device (EPID), exhibiting robust durability in high-energy irradiation and excellent portability enabled by its compact design.</div></div>","PeriodicalId":19272,"journal":{"name":"Nuclear Engineering and Technology","volume":"58 1","pages":"Article 103907"},"PeriodicalIF":2.6,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145045914","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

Multiphysics assessment including phase change evaluation under severe accident conditions for UO2 doped with burnable absorbers 含可燃吸收剂的UO2在严重事故条件下的相变多物理场评价

IF 2.6 3区工程技术

Nuclear Engineering and Technology Pub Date : 2025-09-06 DOI: 10.1016/j.net.2025.103896

Mohamed Y.M. Mohsen , Shlash A. Luhaib , Nassar Alnassar , Mostafa M.A. Khater , A. Abdelghafar Galahom

{"title":"Multiphysics assessment including phase change evaluation under severe accident conditions for UO2 doped with burnable absorbers","authors":"Mohamed Y.M. Mohsen , Shlash A. Luhaib , Nassar Alnassar , Mostafa M.A. Khater , A. Abdelghafar Galahom","doi":"10.1016/j.net.2025.103896","DOIUrl":"10.1016/j.net.2025.103896","url":null,"abstract":"<div><div>Multiphysics analyses are crucial for accurately evaluating the performance of nuclear reactors beyond the limitations of traditional single-physics approaches. This study investigates novel fuel materials consisting of traditional UO<sub>2</sub> homogeneously doped with burnable absorbers (BAs). The effect of doping BAs with nuclear fuel on the VVER-1200 was analyzed from both neutronic and thermal-hydraulic perspectives. Initially, the optimal BA concentration for the candidates was determined based on its effectiveness in mitigating excess reactivity while extending the fuel cycle length compared to conventional UO<sub>2</sub> fuel. Then, a detailed neutronic analysis was performed on the optimized compositions to identify the most effective BA material. Utilizing the radial power distribution obtained, thermal-hydraulic analyses were conducted under normal operation, followed by transient simulation of a large LOCA scenario. Phase change modeling was implemented for both proposed fuels and cladding materials to evaluate their thermal resilience and failure thresholds at both beginning of fuel cycle (BOC) and mid of fuel cycle (MOC). Doping BAs with UO<sub>2</sub> achieved various benefits from a neutronic standpoint while quantifying its impact on thermal-hydraulic performance under both normal and severe transient conditions, offering insights into the feasibility of BA-doped fuels for enhanced reactor safety.</div></div>","PeriodicalId":19272,"journal":{"name":"Nuclear Engineering and Technology","volume":"58 1","pages":"Article 103896"},"PeriodicalIF":2.6,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145027213","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

Feasibility study on the core design of high-flux fast neutron research reactors 高通量快中子研究堆堆芯设计可行性研究

IF 2.6 3区工程技术

Nuclear Engineering and Technology Pub Date : 2025-09-06 DOI: 10.1016/j.net.2025.103909

Miao Zhao , Xianan Du , Youqi Zheng , Mingyu Wu , Rui Yang , Li Xu , Liangzhi Cao , Hongchun Wu

引用次数: 0

Structured light-based 3D reconstruction in the radiation environment based on multi-frame iterative filtering and image feature-based point cloud registration 基于多帧迭代滤波和图像特征点云配准的辐射环境下基于结构光的三维重建

IF 2.6 3区工程技术

Nuclear Engineering and Technology Pub Date : 2025-09-04 DOI: 10.1016/j.net.2025.103870

Minglei Zhu , Dawei Gong , Yuyang Zhao , Jiaoyuan Chen , Shijie Song

{"title":"Structured light-based 3D reconstruction in the radiation environment based on multi-frame iterative filtering and image feature-based point cloud registration","authors":"Minglei Zhu , Dawei Gong , Yuyang Zhao , Jiaoyuan Chen , Shijie Song","doi":"10.1016/j.net.2025.103870","DOIUrl":"10.1016/j.net.2025.103870","url":null,"abstract":"<div><div>In this paper, a novel 3D reconstruction method is proposed for radiation environments based on structured light technology. Firstly, throughout the principles of structured light-based 3D reconstruction, we see that the primary sources of error in radiation environments are the impacts of radiation noise and point-cloud registration errors. Then, considering the random nature of radiation noise, this paper proposes a multiframe iterative image-filtering algorithm that effectively and quickly removes radiation noise while preserving the phase information of the structured light. Additionally, a point-cloud initial registration method based on image features is introduced, which reduces the time required for initial matching and ensures accuracy. 3D reconstruction experiments were conducted at radiation dose rates of 60 Gy/h and 100 Gy/h. The results demonstrate that the proposed method maintains high modeling accuracy even in high-radiation environments, validating the reliability of the approach.</div></div>","PeriodicalId":19272,"journal":{"name":"Nuclear Engineering and Technology","volume":"58 1","pages":"Article 103870"},"PeriodicalIF":2.6,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145027215","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

Modeling and simulation of neutron-gamma density logging: Impact of mudcake thickness and barite content on measurement accuracy 中子-伽马密度测井建模与模拟：泥饼厚度和重晶石含量对测量精度的影响

IF 2.6 3区工程技术

Nuclear Engineering and Technology Pub Date : 2025-09-04 DOI: 10.1016/j.net.2025.103883

Abolfazl Rafizade, Seyed Abolfazl Hosseini

{"title":"Modeling and simulation of neutron-gamma density logging: Impact of mudcake thickness and barite content on measurement accuracy","authors":"Abolfazl Rafizade, Seyed Abolfazl Hosseini","doi":"10.1016/j.net.2025.103883","DOIUrl":"10.1016/j.net.2025.103883","url":null,"abstract":"<div><div>This study investigates the influence of mudcake thickness and barite weight fraction on Neutron-Gamma Density (NGD) logging measurements, applying both NGD-FC and NGD-TC methods to simulate the interactions of fast neutrons and gamma rays in a wellbore environment. Initially, based on fast neutron and gamma diffusion theory and incorporating the build-up factor, a mathematical model of the well logging tool was constructed. To validate this model and enable more detailed analysis, simulations were conducted using the MCNP code, which provided the response of the tool under varying conditions. Simulated responses were then compared with theoretical predictions to ensure model accuracy.</div><div>The research examines mudcake conditions with thicknesses ranging from 3 to 12 mm and barite weight fractions of 10 %–30 %, highlighting that NGD-TC is particularly sensitive to mudcake thickness, as evidenced by a Max Error increasing from 22.36 % to 44.07 %. Conversely, NGD-FC maintains lower and more stable errors (15.91–19.58) under similar conditions, though it shows higher sensitivity to barite content due to fast neutron scattering influences.</div><div>Overall, this study emphasizes the importance of selecting the appropriate NGD method to ensure reliable measurements in complex wellbore environments. By fine-tuning calibration coefficients and understanding the interaction mechanisms that influence neutron and gamma flux, the research enhances the accuracy of NGD logging, thereby supporting improved decision-making in resource extraction and subsurface evaluations.</div></div>","PeriodicalId":19272,"journal":{"name":"Nuclear Engineering and Technology","volume":"58 1","pages":"Article 103883"},"PeriodicalIF":2.6,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144989010","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