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Visualization Feature and CNN Based Homology Classification of Malicious Code

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Chinese Journal of Electronics 2020年第1期29卷 154-160页

作者： CHU Qianfeng LIU Gongshen zhu xinyu School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University

The malicious code brings a serious security threat. Researchers have found that many new types of malicious code are variants of the existing *** homology classification of the unknown malicious code can find its corresponding family in which all the code share inherent similarities from the database, so that the defenders can make rapid response and *** use the algorithm of malicious code visualization to translate the homology classification problem into the image classification problem. A convolution neural network for malicious code image is constructed. We train it to complete the malicious code homology classification on two different datasets. The results show that our work outperforms most of existing work with the accuracy of 98.60%.

关键词： Malicious code Homology classification Malicious code image Convolutional neural network

Performance, optimization, and mechanism of nitric oxide removal by thiourea dioxide/Fe^ⅡEDTA reaction systems

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Chinese Journal of Chemical Engineering 2020年第11期28卷 2918-2927页

作者： Feiqiang He xinyu zhu Xianchun Chen Jianhua Ding State Key Laboratory for Nuclear Resources and Environment School of ChemistryBiology and Materials ScienceEast China University of TechnologyNanchang 330013China

In this work,a new innovative absorption system containing both thiourea dioxide(TD)and FeⅡEDTA was used to NO *** independently influences of O2 volume concentration,TD concentration,original p H value and absorbent temperature on NO removal in bubbling device were examined *** results revealed that the NO removal efficiency firstly increased and then decreased with the increasing of the three independent variables(O2 volume concentration,TD concentration and temperature).However,the NO removal efficiency monotonously increased to some extent with p H value increasing from 6.5 to *** addition,the respective effects of the four variables and the interactive function of them on NO removal were checked with the response surface methodology(RSM)by central composite design(CCD).The calculative model showed that pH value possessed a main positive independent impact on NO ***,the interactive effects between any two factors were expounded by the 3D surface and counter ***,the optimum absorption conditions for the maximum NO removal at 94.3%experimentally and 95.8%statistically were obtained in O2 volume content of 6.0%,TD concentration of 0.02 mol·L^-1,original p H value of 10.5 and absorption temperature of 42℃.

关键词： Nitric oxide Thiourea dioxide Fe~ⅡEDTA RSM

Detection and location algorithm against local-worm

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Science in China(Series F) 2008年第12期51卷 1935-1946页

作者： YANG xinyu SHI Yi zhu Huidun Department of Computer Science and Technology Xi'an Jiaotong University Xi'an 710049 China

The spread of the worm causes great harm to the computer network. It has recently become the focus of the network security research. This paper presents a local-worm detection algorithm by analyzing the characteristics of traffic generated by the TCP-based worm. Moreover, we adjust the worm location algorithm, aiming at the differences between the high-speed and the low-speed worm scanning methods. This adjustment can make the location algorithm detect and locate the worm based on different scanning rate. Finally, we verified the validity and efficiency of the proposed algorithm by simulating it under NS-2.

关键词： worm detection traffic characteristic detection and location

I-BAR protein IRSp53 regulates clathrin-independent endocytosis in a biphasic manner

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Science Bulletin 2018年第3期63卷 149-151页

作者： xinyu zhu Xiaojun Xu Kang Du Jingze Lu Eli Song Key Laboratory of Molecular Biophysics of the Ministry of Education College of Life Science and Technology Huazhong University of Science and Technology Wuhan 430074 China National Laboratory of Biomacromolecules CAS Center for Excellence in Biomacromolecules Institute of Biophysics Chinese Academy of Sciences Beijing 100101 China

Endocytosis is a fundamental cellular activity that plays crucial roles in a variety of biological processes,including nutrient uptake,signal transduction,immune response,morphogenesis,neurotransmission,cell migration... 详细信息

关键词：蛋白质酒吧调整形态发生织物开发种子类型免疫力细胞

Wind Tunnel Experiments and Numerical Study on Performance Characteristics of an H-type Vertical Axis Wind Turbine in the Spanwise Direction

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Journal of Thermal Science 2021年第3期30卷 758-771页

作者： ZHANG Yanfeng LI Qing’an zhu xinyu SONG Xiaowen CAI Chang GUO Zhiping College of Science Inner Mongolia University of TechnologyHohhot 010051China Institute of Engineering Thermophysics Chinese Academy of SciencesBeijing 100190China College of Mechanical Engineering Inner Mongolia University of TechnologyHohhot 010051China

The aerodynamic forces and vortex characteristics of an H-type Vertical Axis Wind Turbine(VAWT)become complicated because of dynamic stall,particularly in the three-dimensional impact on the blade spanwise *** study focused on the evaluation of the aerodynamic performance and vortex characteristics of an H-type VAWT in the spanwise direction by numerical simulations and wind tunnel *** acting on the blade surface was obtained from multiport pressure measurement devices by wind ***,the vortex field around different blade sections was investigated through numerical *** stall behavior was analysed by comparing the results of numerical simulations and *** a result,the tangential force of single blade was mainly contributed at the chordwise position of x/c≤0.4 c and the power of single blade was mainly contributed at the azimuthal angle range of 60°≤θ≤150°in the blade section position region of 0≤z/(H/2)≤*** the section position of z/(H/2)=0.5,the initial flow separation was found at the suction side and progressed forward to the leading *** the increase of the tip speed ratios,the decreasing position of the averaged local power coefficient of each section was closer to the middle section of z/(H/2)=0,and the attenuation speed became *** power coefficient reductions at the blade section position of z/(H/2)=0.9 were 38.29%,46.78%and 56.42%when the tip speed ratios were 1.38,2.19 and 2.58,*** results of this study provided a better understanding of the development of the performance characteristics and vortex characteristics of H-type VAWT.

关键词： VAWT wind tunnel experiments CFD spanwise direction pressure distribution power coefficient

Evidence and modeling study of droughts in China during 4―2 ka BP

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Chinese Science Bulletin 2008年第14期53卷 2215-2221页

作者： WANG ShaoWu HUANG JianBin WEN xinyu zhu JinHong Department of Atmospheric Sciences School of Physics Peking University Beijing 100871 China

Four periods with predominated droughts are identified in 4―2 ka BP according to documentary data, namely 3.6―3.5, 3.1―3.0, 2.8―2.7, and 2.45―2.35 ka BP. Palaeo-environmental data indicated that droughts were predominated in 4―2 ka BP in the south of Northeast China, Inner-Mongolia, east of Qinghai-Tibetan Plateau, and South China. Modeling study shows that precession may be responsible for the occurrence of droughts in 4―2 ka BP, integrating the GCM with forcing of insolation.

关键词：中国干旱地区模式研究环境监测

Comparison in structure and predicted function of epiphytic bacteria on Neopyropia yezoensis and Neopyropia katadae

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Journal of Oceanology and Limnology 2023年第6期41卷 2232-2248页

作者： Xinran WANG Junhao WANG Yunke zhu xinyu zhu Hong QIN Ka BIAN Xianghai TANG Key Laboratory of Marine Genetics and Breeding(Ministry of Education) College of Marine Life SciencesOcean University of ChinaQingdao 266003China

The economic alga Neopyropia,which holds significant value in China for its edibility and economic potential,harbors diverse epiphytic bacteria on its *** epiphytic bacteria on Neopyropia yezoensis and Neopyropia katadae,two nori species of Neopyropia living at the same tidal level but with distinct physiological states and living habits,were investigated to understand the differences between them and the effects of epiphytic bacteria on their differential *** of 16S rRNA gene sequences and real-time quantitative PCR(qPCR)of thalli and seawater samples(n=24)revealed notable differences in microbial diversity and community structure between the two *** dominated the bacterial communities in association with ***,whereas Proteobacteria were predominant in *** Investigation of Communities by Reconstruction of Unobserved States(PICRUSt2)analysis revealed enriched genes that related to the ABC transport system,iron complex outer membrane receptor proteins,and proliferation in ***,whereas *** exhibited enrichment of genes that related to energy supply as well as cell wall and cell membrane *** results of qPCR indicate a higher abundance of epiphytic bacteria on surface of *** than those on surface of *** findings indicate that differences in the living environments of *** and *** may result in distinct structural composition and abundance of epiphytic bacteria on their surfaces,thereby conferring specific biological functionalities to each microbial community,and the epiphytic bacteria may shape the living habits of hosts to some *** study provided a basis for understanding the close association between surface microorganisms and algal bodies,and the physiological and ecological characteristics of nori species.

关键词： Neopyropia yezoensis Neopyropia katadae epiphytic bacteria 16 S rRNA quantitative PCR(qPCR)

Nitric oxide removal from flue gas by ferrate(Ⅵ)/urea solutions

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Chinese Chemical Letters 2021年第10期32卷 3175-3179页

作者： Feiqiang He xinyu zhu Lirong Zhong zhuyao Li Yong Qian School of Chemistry Biology and Materials ScienceEast China University of TechnologyNanchang 330013China

In this work,nitric oxide absorption process by using ferrate(Ⅵ)/urea was *** respective influences of the four factors including pH value,ferrate(Ⅵ) concentration,urea concentration,and the temperature and the interactive function of them on nitric oxide absorption were investigated with the response surface methodology(RSM) by central composite design(CCD).The proposed model system showed good consistency with the experiment results,by a correlated coefficient(R^(2)) of *** addition,the interactive influences between any two variables were elaborated through analysis of response *** optimal parameters were found at pH of 7.1,reaction temperature of 43.8C,urea concentration of 6.3 wt%,ferrate(Ⅵ) concentration of 4.4 mmol/L for 85.2% NO ***,Ncontaining product analysis shows that nitric oxide was primarily transformed to N2 and NO_(3)^(-).

关键词： Urea Removal Ferrate(Ⅵ) Nitric oxide

Dynamic Spectrum Anti-Jamming with Distributed Learning and Transfer Learning

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China Communications 2023年第12期20卷 52-65页

作者： xinyu zhu Yang Huang Delong Liu Qihui Wu Xiaohu Ge Yuan Liu Key Laboratory of Dynamic Cognitive System of Electromagnetic Spectrum Space Ministry of Industry and Information TechnologyNanjing University of Aeronautics and AstronauticsNanjing 210016China The 723 Institute of CSSC Yangzhou 225001China School of Electronic Information and Communications Huazhong University of Science and TechnologyWuhan 430074China School of Electronic and Information Engineering South China University of TechnologyGuangzhou 510641China

Physical-layer security issues in wireless systems have attracted great *** this paper,we investigate the spectrum anti-jamming(AJ)problem for data transmissions between *** fast-changing physical-layer jamming attacks in the time/frequency domain,frequency resources have to be configured for devices in advance with unknown jamming patterns(*** time-frequency distribution of the jamming signals)to avoid jamming signals emitted by malicious *** process can be formulated as a Markov decision process and solved by reinforcement learning(RL).Unfortunately,stateof-the-art RL methods may put pressure on the system which has limited computing *** a result,we propose a novel RL,by integrating the asynchronous advantage actor-critic(A3C)approach with the kernel method to learn a flexible frequency pre-configuration ***,in the presence of time-varying jamming patterns,the traditional AJ strategy can not adapt to the dynamic interference *** handle this issue,we design a kernelbased feature transfer learning method to adjust the structure of the policy function *** results reveal that our proposed approach can significantly outperform various baselines,in terms of the average normalized throughput and the convergence speed of policy learning.

关键词： A3C anti-jamming reinforcement learning spectrum transfer learning wireless system