作者：
Fouda, Amr;Hamza, Mohammed F.;Shaheen, Th. I.;Wei, Yuezhou
期刊：
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY,2022年10:1002887 ISSN：2296-4185
通讯作者：
Fouda, Amr(amr_fh83@azhar.edu.eg)
作者机构：
[Fouda, Amr] Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, Cairo, Egypt;School of Nuclear Science and Technology, University of South China, Hengyang, China;Nuclear Materials Authority, Cairo, Egypt;[Shaheen, Th. I.] National Research Centre, Textile Research Division, Cairo, Egypt;School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
通讯机构：
[Fouda, A.] D;Department of Botany and Microbiology, Egypt
摘要：
The huge development in nanotechnology has greatly introduced prospective opportunities to construct improved materials with sophisticated properties to be incorporated into various fields. Such applications are due to the unique properties of nanomaterials originating from the nanoscale structure which are completely different from its bulk materials. One of the current challenges is the possible spread of viral and bacterial infections in the healthcare units, small clinics, doctor's offices, and hospitals that threaten the safety of the healthcare team, visitors, and patients. Textiles and clothes are one of the reasons for spreading infections between patients and others as they are in direct contact with the skin, therefore can be named “second skin”. Therefore, it is urgent to improve the overall properties of textile used for medicinal applications. Nanotechnology can contribute to producing smart textiles with multi-functional properties such as UV protection, flame-retardant, oil, and water repellent, antimicrobial, wrinkle resistance, anti-odor, and antistatic properties. Various chemically and physically-generated metal and metal oxide nanoparticles are applied for smart textiles. However, nanomaterials produced by green approaches are preferred to eliminate or minimize the harmful effects of traditional methods.This issue contains seven articles, two review articles, and five original research papers, covering the current research topic. The first research arti...
作者：
Hamza, Mohammed F.;Fouda, Amr;Wei, Yuezhou;El Aassy, Ibrahim E.;Alotaibi, Saad H.;...
期刊：
Chemical Engineering Journal,2022年431:133967 ISSN：1385-8947
通讯作者：
Wei, Yuezhou(yzwei@usc.edu.cn)
作者机构：
[Hamza, Mohammed F.; Wei, Yuezhou] School of Nuclear Science and Technology, University of South China, Heng Yang;421001, China;[El Aassy, Ibrahim E.] Nuclear Materials Authority, POB 530, El-Maadi;Cairo, Egypt;[Fouda, Amr] Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Nasr City
通讯机构：
[Yuezhou Wei] S;[Eric Guibal] P;Polymers Composites and Hybrids (PCH), IMT Mines Ales, Alès, France<&wdkj&>School of Nuclear Science and Technology, University of South China, Heng Yang 421001, China<&wdkj&>School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
关键词：
Antimicrobial effect and cytotoxicity;Application as water treatment for decontamination of groundwater collected from wells;Functionalization of chitosan/Arabic gum composite;Uranium sorption isotherms and uptake kinetics
期刊：
Fusion Engineering and Design,2021年172:112746 ISSN：0920-3796
通讯作者：
Xiao, Detao(xiaodt@usc.edu.cn)
作者机构：
[Xiao, Detao; Wang, Zhen; Wu, Haibiao] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.;[Zhu, Te; Zhang, Peng; Wang, Baoyi; Cao, Xingzhong; Wang, Zhen; Song, Yamin] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China.;[Wu, Haibiao] Univ South China, Affilated Hosp 1, Hengyang 421001, Peoples R China.
通讯机构：
[Detao Xiao] S;[Xingzhong Cao] I;School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China<&wdkj&>Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
关键词：
W and W-5wt%Re;Helium ions;Microdefects;Irradiation temperature;DBS;TEM;SEM
摘要：
W and W-5wt%Re alloy were irradiated by 50 keV helium ions at RT, 200 degrees C, 350 degrees C and 500 degrees C to investigate the influence of temperature on the microdefects and surface morphology in the sample. The microdefects in the subsurface region and the surface damage caused by irradiation were characterized by Doppler broadening spectroscopy (DBS) of slow positron beam, transmission electron microscope (TEM) and scanning electron microscopy (SEM), respectively. The results show that a large number of vacancy-type defects were produced after helium ions irradiation, especially at 500 degrees C, the vacancy-type defects of W alloy are higher than that of W-5wt% Re alloy, which indicated that Re restricted the behavior of vacancy-type defects in tungsten to some extent. The surface irradiation damage such as crystal gap enlargement, grain fell off and pores were observed at different irradiation temperatures. Compared with the coral-like structure observed in W, the circular objects and Hillygully structure were observed in W-5wt%Re alloy, and both of them increased and grew with the increase of irradiation temperature. It was speculated that the presence of Re led to the difference by analyzing the formation mechanism of the coral-like structure and the Hilly-gully structure.
作者机构：
[Qiu, Xiaoping] School of Nuclear Science and Technology, University of South China, Hunan, Hengyang, China;[Bai, Penggang] Department of Radiation Oncology, Fujian Cancer Hospital, Fujian, Fuzhou, China;[Chen, Yanyu] School of Nuclear Science and Technology, University of South China, Hunan, Hengyang, China<&wdkj&>Department of Radiation Oncology, Fujian Cancer Hospital, Fujian, Fuzhou, China
会议名称：
2nd International Symposium on Artificial Intelligence for Medicine Sciences, ISAIMS 2021
期刊：
Chemical Physics Letters,2021年780:138913 ISSN：0009-2614
通讯作者：
Liu, Min(liuhart@126.com)
作者机构：
[Chen, Haiwen; Liu, Min; Lu, Zeyi] Univ South China, Coll Nucl Sci & Technol, Hengyang 421001, Peoples R China.;[Liu, Min] Univ South China, Cooperat Innovat Ctr Nucl Fuel Cycle Technol & Eq, Hengyang, Hunan, Peoples R China.
通讯机构：
[Min Liu] C;College of Nuclear Science and Technology, University of South China, Hengyang 421001, China<&wdkj&>Cooperative Innovation Center for Nuclear Fuel Cycle Technology and Equipment, University of South China
关键词：
Charge transfer;Magnetic properties;Prussian blue analogs;Structural distortion;Thermal induction
摘要：
The K0.4Co1.3[Fe(CN)6]center dot nH2O samples were prepared by co-precipitation method. Powder X-ray diffraction showed that only one HT phase existed in the sample prepared at room temperature ([KCoFe]RT). When the preparation temperature rises to 80 degrees C([KCoFe]80 degrees C), the diffraction peak intensity of primary HT phase weakened and another LT phase appeared. The HT and LT phase are both FCC crystal structure with structural parameters of 10.23 angstrom and 9.93 angstrom, respectively. Infrared and Mo center dot ssbauer spectra indicated that part of FeIIILS-CN-CoIIHS were transformed to FeII LS-CN-CoIII LS configuration when preparation temperature rises to 80 degrees C. It indicated that preparation temperature induced charge transfer from CoII to FeIII ions occurred in present sample. Magnetic analysis showed that these cobalt iron cyanides are both ferrimagnetic. The difference of magnetic moments between the two compounds over the entire temperature range is ascribed to the fact that [KCoFe]RT has more paramagnetic central ions than [KCoFe]80 degrees C. The difference between room temperature theoretical and experimental magnetic moments may be attributed to the weak spin-orbit coupling existing for both ions.
期刊：
Annals of Nuclear Energy,2021年160:108401 ISSN：0306-4549
通讯作者：
Zeng, Wenjie(zengwenjie0218@163.com)
作者机构：
[Liu, Yinuo; Jiang, Qingfeng; Zeng, Wenjie; Yang, Chao] Univ South China, Sch Nucl Sci & Technol, Hengyang City 421001, Peoples R China.;[Cai, Manbo] Univ South China, Dept Oncol & Radiotherapy, Affiliated Hosp 1, Hengyang City 421001, Peoples R China.
通讯机构：
[Wenjie Zeng] S;[Manbo Cai] D;School of Nuclear Science and Technology, University of South China, Hengyang City 421001, China<&wdkj&>Department of Oncology and Radiotherapy, The First Affiliated Hospital of University of South China, Hengyang City 421001, China
关键词：
BP neural network PID controller;LFR core power control system;Reactivity feedback coefficient;Uncertainty analysis
通讯机构：
[Xue Bai] D;[Qing Hou] K;Department of Radiation Physics, Zhejiang Key Laboratory of radiation Oncology, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, 310022, China.;Key Laboratory of Radiation Physics and Technology, Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu, 610064, China.
关键词：
Radiotherapy;Dose prediction;Loss function;Breast cancer
摘要：
Neural-network methods have been widely used for the prediction of dose distributions in radiotherapy. However, the prediction accuracy of existing methods may be degraded by the problem of dose imbalance. In this work, a new loss function is proposed to alleviate the dose imbalance and achieve more accurate prediction results. The U-Net architecture was employed to build a prediction model. Our study involved a total of 110 patients with left-breast cancer, who were previously treated by volumetric-modulated arc radiotherapy. The patient dataset was divided into training and test subsets of 100 and 10 cases, respectively. We proposed a novel ‘sharp loss’ function, and a parameter γ was used to adjust the loss properties. The mean square error (MSE) loss and the sharp loss with different γ values were tested and compared using the Wilcoxon signed-rank test. The sharp loss achieved superior dose prediction results compared to those of the MSE loss. The best performance with the MSE loss and the sharp loss was obtained when the parameter γ was set to 100. Specifically, the mean absolute difference values for the planning target volume were 318.87 ± 30.23 for the MSE loss versus 144.15 ± 16.27 for the sharp loss with γ = 100 (p < 0.05). The corresponding values for the ipsilateral lung, the heart, the contralateral lung, and the spinal cord were 278.99 ± 51.68 versus 198.75 ± 61.38 (p < 0.05), 216.99 ± 44.13 versus 144.86 ± 43.98 (p < 0.05), 125.96 ± 66.76 versus 111.86 ± 47.19 (p > 0.05), and 194.30 ± 14.51 versus 168.58 ± 25.97 (p < 0.05), respectively. The sharp loss function could significantly improve the accuracy of radiotherapy dose prediction.
作者机构：
[Li, Chao; Ma, Shaohang; Song, Yingming; Zhang, Zehuan] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.;[Song, Yingming] Univ South China, Natl Exemplary Base Int Sci & Tech Collaborat Nuc, Hengyang 421001, Peoples R China.;[Guo, Yaping] China Inst Atom Energy, Beijing 102413, Peoples R China.
通讯机构：
[Yingming Song] S;School of Nuclear Science and Technology, University of South China, Hengyang 421001, China<&wdkj&>National Exemplary Base for International Sci & Tech. Collaboration of Nuclear Energy and Nuclear Safety, University of South China, Hengyang 421001, China
作者机构：
[Chen, Yang; Huang, Hudie; Mao, Jie; Song, Yingming; Zhang, Zehuan] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.;[Song, Yingming] Univ South China, Natl Exemplary Base Int Sci & Tech, Collaborat Nucl Energy & Nucl Safety, Hengyang 421001, Peoples R China.;[Yuan, Weiwei] Univ South China, Radon Prov Key Lab, Hengyang 421001, Peoples R China.
通讯机构：
[Yingming Song] S;School of Nuclear Science and Technology, University of South China, Hengyang 421001, China<&wdkj&>National Exemplary Base for International Sci & Tech. Collaboration of Nuclear Energy and Nuclear Safety, University of South China, Hengyang 421001, China
关键词：
Dimension reduction of Redundant objectives;Many-objective optimization;Multi-objective optimization;PCA;Shielding design
摘要：
Safety and lightweight optimization is significant in shielding design of compact nuclear reactors. The optimal solutions obtained by the existing intelligent optimization algorithm of shielding design is not ideal when there are redundant optimization objectives. In this paper, we propose a novel multi-objective shielding optimization method which couples NSGA-II, deep neural network (DNN) and principal component analysis (PCA) for optimization by eliminating redundant objectives. The efficacy of the method is demonstrated by solving up to a plate shielding model and Savannah marine nuclear power reactor shielding model. (C) 2021 Published by Elsevier Ltd.
作者机构：
[Xia, Liangshu; Li, Reirei; Xiao, Yiqun; Zheng, Weina] School of Nuclear Science and Technology, University of South China, Hengyang;421001, China;Department of Radiochemistry, China Institute of Atomic Energy, P.O. Box 275-26, Beijing;102413, China;[Tan, Kaixuan] School of Nuclear Resource and Nuclear Fuel Engineering, University of South China, Hengyang
通讯机构：
[Xia, L.] S;School of Nuclear Science and Technology, China
作者机构：
[刘建桥; 张力; 孙倩琳; 陈帅] School of Nuclear Science and Technology, University of South China, Hengyang;421001, China;[邹衍华; 刘雪阳] Institute of Human Factors & Safety Engineering, Hunan Institute of Technology, Hengyang;421002, China;[刘建桥; 孙倩琳; 陈帅] 421001, China
摘要：
Photon-induced nuclear excitation (i.e. photo-excitation) can be used for production of nuclear isomers, which have potential applications in astrophysics, energy storage, medical diagnosis and treatment. This paper presents a feasibility study on photo-excitation production of four nuclear isomers (Rh-103m, In-113m,In-115m and Lu-176m) with intense.-ray source based on laser-electron Compton scattering (LCS). The decay properties of these isomers and their potential applications in medical diagnosis and treatment were reviewed. The cross-section curve, simulated yield and activity of product of each photo-excitation process were calculated. The cutoff energy of LCS gamma-ray beam was optimized by adjusting electron beam energy in order to maximize the isomer activity. It is found that the specific activity of the above-mentioned isomers can exceed similar to 0.2 GBq/g for 6-h target irradiation at an intensity of 10(13) gamma/s. Our simulation results suggest the prospect of producing medically interesting radionuclides with photo-excitation using the state-of-art LCS gamma-ray beam facility.
关键词：
Electric fields;Femtosecond pulses;High power lasers;Magnetic fields;Photon counting;Soft x rays
摘要：
We demonstrate the high-efficiency generation of water-window soft x-ray emissions from polyethylene nanowire array targets irradiated by femtosecond laser pulses at the intensity of 4x10(19) W/cm(2). The experimental results indicate more than one order of magnitude enhancement of the water-window x-ray emissions from the nanowire array targets compared to the planar targets. The highest energy conversion efficiency from laser to water-window x-rays is measured as 0.5%/sr, which comes from the targets with the longest nanowires. Supported by particle-in-cell simulations and atomic kinetic codes, the physics that leads to the high conversion efficiency is discussed. (c) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
作者机构：
[姜庆丰; Zeng, Wenjie] School of Nuclear Science and Technology, University of South China, Hengyang;421001, China;[姜庆丰; Zeng, Wenjie] 421001, China
作者机构：
[姚磊; 谢金森; 于涛; 徐士坤; 夏羿; 邓年彪] School of Nuclear Science and Technology, University of South China, Hengyang;421001, China;Virtual Simulation Experiment Teaching Center on Nuclear Energy and Technology, University of South China, Hengyang;[姚磊; 谢金森; 于涛; 徐士坤; 夏羿; 邓年彪] 421001, China<&wdkj&>Virtual Simulation Experiment Teaching Center on Nuclear Energy and Technology, University of South China, Hengyang;[姚磊; 谢金森; 于涛; 徐士坤; 夏羿; 邓年彪] 421001, China
