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Application of Zero-Watermarking for Medical Image in Intelligent Sensor Network Security

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Computer Modeling in Engineering & Sciences 2023年第7期136卷 293-321页

作者： Shixin Tu Yuanyuan Jia Jinglong Du Baoru Han Medical Data Science Academy College of Medical InformaticsChongqing Medical UniversityChongqing400016China

The field of healthcare is considered to be the most promising application of intelligent sensor ***,the security and privacy protection ofmedical images collected by intelligent sensor networks is a hot problem that has attracted more and more ***,digital watermarking provides an effective method to solve this *** order to improve the robustness of the medical image watermarking scheme,in this paper,we propose a novel zero-watermarking algorithm with the integer wavelet transform(IWT),Schur decomposition and image block ***,we first use IWT to extract low-frequency information and divide them into non-overlapping blocks,then we decompose the sub-blocks by Schur *** that,the feature matrix is constructed according to the relationship between the image block energy and the whole image *** the same time,we encrypt watermarking with the logistic chaotic position ***,the zero-watermarking is obtained by XOR operation with the encrypted *** indexes of peak signal-to-noise ratio,normalization coefficient(NC)and the bit error rate(BER)are used to evaluate the robustness of the *** to the experimental results,most of the NC values are around 0.9 under various attacks,while the BER values are very close to *** experimental results show that the proposed algorithm is more robust than the existing zero-watermarking methods,which indicates it is more suitable for medical image privacy and security protection.

关键词： Intelligent sensor network medical image zero-watermarking integer wavelet transform schur decomposition

MDR:an integrative DNA N6-methyladenine and N4-methylcytosine modification database for Rosaceae

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Horticulture research 2019年第1期6卷 774-780页

作者： Zhao-Yu Liu Jian-Feng Xing Wei Chen Mei-Wei Luan Rui Xie Jing Huang Shang-Qian Xie Chuan-Le Xiao hainan Key Laboratory for Biology of Tropical Ornamental Plant Germplasm Institute of Tropical Agriculture and ForestryHainan University570228 HaikouChina State Key Laboratory of Ophthalmology Zhongshan Ophthalmic CenterSun Yat-sen University510060 GuangzhouChina Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences 010031 HuhhotChina Department of Agronomy College of AgriculturePurdue UniversityWest LafayetteIN 47907USA

Eukaryotic DNA methylation has been receiving increasing attention for its crucial epigenetic regulatory *** recently developed single-molecule real-time(SMRT)sequencing technology provides an efficient way to detect DNA N6-methyladenine(6mA)and N4-methylcytosine(4mC)modifications at a single-nucleotide *** family Rosaceae contains horticultural plants with a wide range of economic ***,little is currently known regarding the genome-wide distribution patterns and functions of 6mA and 4mC modifications in the *** this study,we present an integrated DNA 6mA and 4mC modification database for the Rosaceae(MDR,http://***).MDR,the first repository for displaying and storing DNA 6mA and 4mC methylomes from SMRT sequencing data sets for Rosaceae,includes meta and statistical information,methylation densities,Gene Ontology enrichment analyses,and genome search and browse for methylated sites in *** provides important information regarding DNA 6mA and 4mC methylation and may help users better understand epigenetic modifications in the family Rosaceae.

关键词： database adenine modification

Preventing crash in stock market:The role of economic policy uncertainty during COVID‑19

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Financial Innovation 2021年第1期7卷 654-668页

作者： Peng‑Fei Dai Xiong Xiong Zhifeng Liu Toan Luu Duc Huynh Jianjun Sun College of Management and Economics Tianjin UniversityTianjinChina School of Business East China University of Science and TechnologyShanghaiChina Management School Hainan UniversityHaikouChina Chair of Behavioral Finance WHU-Otto Beisheim School of ManagementVallendarGermany School of Banking University of Economics Ho Chi Minh CityHo Chi Minh CityVietnam School of Economics Hainan UniversityHaikouChina

This paper investigates the impact of economic policy uncertainty(EPU)on the crash risk of US stock market during the COVID-19 *** this end,we use the GARCHS(GARCH with skewness)model to estimate daily skewness as a proxy for the stock market crash *** empirical results show the significantly negative correlation between EPU and stock market crash risk,indicating the aggravation of EPU increase the crash ***,the negative correlation gets stronger after the global COVID-19 outbreak,which shows the crash risk of the US stock market will be more affected by EPU during the epidemic.

关键词： COVID-19 Economic policy uncertainty Crash risk Skewness

Strongly screening electron capture for nuclides ^(52,53,59,60)Fe by the Shell-Model Monte Carlo method in pre-supernovae

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Chinese Physics C 2017年第9期41卷 129-137页

作者：刘晶晶彭秋和刘冬梅 College of Marine Science and Technology Hainan Tropical Ocean University Department of Astronomy Nanjing University

The death of massive stars due to supernova explosions is a key ingredient in stellar evolution and stellar population synthesis. Electron capture （EC） plays a vital role in supernova explosions. Using the Shell-Model Monte Carlo method, based on the nuclear random phase approximation and linear response theory model for electrons, we study the strong screening EC rates of 52,53,59,60Fe in pre-supernovae. The results show that the screening rates can decrease by about 18.66%. Our results may become late-type stars, supernova explosion mechanisms and a good foundation for future investigation of the evolution of numerical simulations.

关键词： stars: supernovae stars: evolution physical date and processes: nuclear reactions

Single Failure Routing Protection Algorithm in the Hybrid SDN Network

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Computers, Materials & Continua 2020年第7期64卷 665-679页

作者： Haijun Geng Jiangyuan Yao Yangyang Zhang School of Software Engineering Shanxi UniversityTaiyuan030006China School of Computer Science and Cyberspace Security Hainan UniversityHaikou570228China College of Engineering Northeastern university Boston02115USA

Loop free alternate(LFA)is a routing protection scheme that is currently deployed in commercial ***,LFA cannot handle all single network component failure scenarios in traditional *** Internet service providers have begun to deploy software defined network(SDN)technology,the Internet will be in a hybrid SDN network where traditional and SDN devices coexist for a long ***,this study aims to deploy the LFA scheme in hybrid SDN network architecture to handle all possible single network component failure ***,the deployment of LFA scheme in a hybrid SDN network is described as a 0-1 integer linear programming(ILP)***,two greedy algorithms,namely,greedy algorithm for LFA based on hybrid SDN(GALFAHSDN)and improved greedy algorithm for LFA based on hybrid SDN(IGALFAHSDN),are proposed to solve the proposed ***,both algorithms are tested in the simulation environment and the real *** results show that GALFAHSDN and IGALFAHSDN can cope with all single network component failure scenarios when only a small number of nodes are upgraded to SDN *** path stretch of the two algorithms is less than 1.36.

关键词： Multipath routing network availability routing protection algorithm network failure hybrid SDN network

Diversity and independent evolutionary profiling of rodent-borne viruses in hainan,a tropical island of China

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Virologica Sinica 2023年第5期38卷 651-662页

作者： Youyou Li Chuanning Tang Yun Zhang Zihan Li Gaoyu Wang Ruoyan Peng Yi Huang Xiaoyuan Hu Henan Xin Boxuan Feng Xuefang Cao Yongpeng He Tonglei Guo Yijun He Haoxiang Su Xiuji Cui Lina Niu Zhiqiang Wu Jian Yang Fan Yang Gang Lu Lei Gao Qi Jin Meifang Xiao Feifei Yin Jiang Du NHC Key Laboratory of Systems Biology of Pathogens Institute of Pathogen BiologyChinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing100005China Department of Clinical Laboratory Center for Laboratory MedicineHainan Women and Children's Medical CenterHaikou571199China Key Laboratory of Tropical Translational Medicine of Ministry of Education Hainan Medical UniversityHaikou571199China hainan Medical university-The university of Hong Kong Joint Laboratory of Tropical Infectious Diseases Hainan Medical UniversityHaikou571199China Department of Pathogen Biology Hainan Medical UniversityHaikou571199China

The risk of emerging infectious diseases(EID)is increasing *** than 60%of EIDs worldwide are caused by animal-borne *** study aimed to characterize the virome,analyze the phylogenetic evolution,and determine the diversity of rodent-borne viruses in hainan Province,*** collected 682 anal and throat samples from rodents,combined them into 28 pools according to their species and location,and processed them for next-generation sequencing and bioinformatics *** diverse viral contigs closely related to mammals were assigned to 22 viral *** clues of the important rodent-borne viruses were further identified by polymerase chain reaction for phylogenetic analysis and annotation of genetic characteristics such as arenavirus,coronavirus,astrovirus,pestivirus,parvovirus,and *** identified pestivirus and bocavirus in Leopoldoms edwardsi from Huangjinjiaoling,and bocavirus in Rattus andamanensis from the national nature reserves of Bangxi with low amino acid identity to known pathogens are proposed as the novel species,and their rodent hosts have not been previously reported to carry these *** results expand our knowledge of viral classification and host range and suggest that there are highly diverse,undiscovered viruses that have evolved independently in their unique wildlife hosts in inaccessible areas.

关键词： Rodents Virome Phylogenetic analysis Novel viruses Wildlife

Fast Verification of Network Configuration Updates

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Computers, Materials & Continua 2023年第1期74卷 293-311页

作者： Jiangyuan Yao Zheng Jiang Kaiwen Zou Shuhua Weng Yaxin Li Deshun Li Yahui Li Xingcan Cao Scool of Computer Science and Technology Hainan UniversityHaikou570228China School of Cyberspace Security Hainan UniversityHaikou570228China School of Software Engineering Jilin UniversityChangchun130012China School of Software Beijing Jiaotong UniversityBeijing100091China university of British Columbia VancouverV5K1K5Canada

With the expansion of network services,large-scale networks have progressively become *** network status changes rapidly in response to customer needs and configuration changes,so network configuration changes are also very ***,no matter what changes,the network must ensure the correct conditions,such as isolating tenants from each other or guaranteeing essential *** changes occur,it is necessary to verify the after-changed ***,for the verification of large-scale network configuration changes,many current verifiers show poor *** order to solve the problem ofmultiple global verifications caused by frequent updates of local configurations in large networks,we present a fast configuration updates verification tool,FastCUV,for distributed control *** aims to enhance the efficiency of distributed control plane verification for medium and large networks while ensuring *** paper presents a method to determine the network range affected by the configuration *** present a flow model and graph structure to facilitate the design of verification algorithms and speed up *** scheme verifies the network area affected by obtaining the change of the Forwarding Information Base(FIB)before and *** supports rich network attributes,meanwhile,has high efficiency and correctness *** experimental verification and result analysis,our method outperforms the state-of-the-art method to a certain extent.

关键词： Network verification configuration updates network control plane forwarding information base

Comparative Analysis of Nutrient Composition of Caulerpa lentillifera from Different Regions

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Journal of Ocean university of China 2020年第2期19卷 439-445页

作者： ZHANG Meijian MA Yurong CHE Xinyi HUANG Zumei CHEN Peng XIA Guanghua ZHAO Meihui Engineering research Center of Utilization of Tropical Polysaccharide Resources Ministry of EducationHainan UniversityHaikou 570228China hainan Engineering research Center of Aquatic Resources Efficient Utilization in South China Sea Hainan UniversityHaikou 570228China Collaborative Innovation Center of Seafood Deep Processing Dalian Polytechnic UniversityDalian 116034China College of Food Science and Technology Hainan UniversityHaikou 570228China

This study investigated the difference of nutrient composition in Caulerpa lentillifera collected from different *** nutrient compositions of *** from China's hainan and Shandong provinces were determined and compared with those from Semporna(Malaysia),Sabah(Malaysia),Petchburi(Thailand),and two other species of seaweeds(Malaysia).The results showed that the polysaccharide and protein contents of *** from hainan(44.82%±0.98%and 12.5%±0.70%),Shandong(43.22%±1.42%and 14.7%±0.72%),Petchburi(59.27%±2.31%and 12.49%±0.30%),and Sabah(44.02%±2.01%and 19.38%±1.48%)were higher than those of Eucheuma cottonii(26.49%±3.01%and 9.76%±1.33%)and Sargassum polycystum(33.49%±1.70%and 5.40%±0.07%),*** polyunsaturated fatty acid contents in *** from hainan(29.98%)and Shandong(22.11%)were higher than that in Semporna(16.76%±0.27%),Sabah(9.49%),and ***(20.34%±0.43%),but lower than that in ***(51.55%±0.57%).In Caulerpa lentillifera of hainan and Shandong provinces,the essential amino acid(EAA)/total amino acid(TAA)ratios were 35.22%and 38.78%,respectively;and the EAA/ETAA ratios were 54.36%and 63.35%,*** EAA composition of *** was close to the ideal model of Food and Agriculture Organization/World Health *** was rich in mineral elements,including calcium((3315.85±127.55)mg(100 g)^-1 and(3728.35±92.38)mg(100 g)^-1),magnesium((6715.74±82.58)mg(100 g)^-1 and(8128.59±242.72)mg(100 g)^-1),and trace elements,including iron((510.65±5.47)mg(100 g)^-1 and(1972.97±183.35)mg(100 g)^-1),selenium((1.04±0.08)mg(100 g)^-1 and(0.83±0.15)mg(100 g)^-1),and zinc((33.90±0.13)mg(100 g)^-1 and(11.75±2.05)mg(100 g)^-1).These results showed that *** was more nutritious than *** or *** in terms of polysaccharide,protein,and fatty acid ***,both *** species collected from hainan and Shandong provinces show more basic ***,***

关键词： Caulerpa lentillifera nutrient composition fatty acid amino acid mineral comparative analysis

State-Based Control Feature Extraction for Effective Anomaly Detection in Process Industries

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Computers, Materials & Continua 2020年第6期63卷 1415-1431页

作者： Ming Wan Jinfang Li Jiangyuan Yao Rongbing Wang Hao Luo School of Information Liaoning UniversityShenyang110036China School of Computer Science&Cyberspace Security Hainan UniversityHaikou570228China School of Informatics Edinburgh UniversityEdinburghEH89ABUK

In process industries,the characteristics of industrial activities focus on the integrality and continuity of production process,which can contribute to excavating the appropriate features for industrial anomaly *** this perspective,this paper proposes a novel state-based control feature extraction approach,which regards the finite control operations as different ***,the procedure of state transition can adequately express the change of successive control operations,and the statistical information between different states can be used to calculate the feature ***,OCSVM(One Class Support Vector Machine)and BPNN(BP Neural Network),which are optimized by PSO(Particle Swarm Optimization)and GA(Genetic Algorithm)respectively,are introduced as alternative detection engines to match with our feature extraction *** experimental results clearly show that the proposed feature extraction approach can effectively coordinate with the optimized classification algorithms,and the optimized GA-BPNN classifier is suggested as a more applicable detection engine by comparing its average detection accuracies with the ones of PSO-OCSVM classifier.

关键词： State-based control feature anomaly detection PSO-OCSVM GA-BPNN