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Correction to:Overexpression of PtPEPCK1 gene promotes nitrogen metabolism in poplar

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Journal of Forestry Research 2022年第6期33卷 1961-1962页

作者： lina wang Miao He Song Chen Kean wang Donghai Cui Xin Huang Lijie Liu State Key Laboratory of Tree Genetics and Breeding Northeast Forestry University51 Hexing RoadHarbin 150040People’s Republic of China College of Life Sciences and Agriculture and Forestry Qiqihar UniversityQiqihar 161006People’s Republic of China

Correction to:***://***/10.1007/s11676-019-01042-4 In the Original publication,the author has found that C1 and C4 in Fig.3 have been published with *** corrected Fig.3 C1 and C4 are provided below.

关键词： metabolism corrected Correction

Steganalysis of MSU Stego Video Based on Block Matching of Interframe Collusion and Motion Detection

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Wuhan University Journal of Natural Sciences 2012年第5期17卷 441-446页

作者： REN Yanzhen wang Mingjie ZHAO Yanbin wang lina CAI Tingting School of Computer Wuhan University Wuhan 430072 Hubei China Key Laboratory of Aerospace Information Security and Trusted Computing Ministry of Education Wuhan 430072 Hubei China

MSU Stego Video is a public video steganographic tool, which has strong robustness and is regarded as a real video steganographic tool. In order to increase the detection rate, this paper proposes a new steganoalysis method against MSU, which uses the chessboard character of MSU embedded video, proposes a down-sample block-based collusion method to estimate the original frame and checks the chessboard mode of the different frame between tested frame and estimated frame to detect MSU steganographic evidences. To reduce the error introduced by severe movement of the video content, a method that abandons severe motion blocks from detecting is proposed. The experiment results show that the false negative rate of the proposed algorithm is lower than 5%, and the false positive rate is lower than 2%. Our algorithm has significantly better performance than existing algorithms. Especially to the video that has fast motion, the algorithm has more remarkable performance.

关键词： MSU Stego Video video steganalysis block-based matching chessboard pattern motion detection

Layered MoS2@graphene functionalized with nitrogen-doped graphene quantum dots as an enhanced electrochemical hydrogen evolution catalyst

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Chinese Chemical Letters 2019年第6期30卷 1253-1260页

作者： Tong Guo lina wang Sen Sun Yan wang Xiaoling Chen Kangning Zhang Dongxia Zhang Zhonghua Xue Xibin Zhou Key Laboratory of Bioelectrochemistry&Environmental Analysis of Gansu Province College of Geography and Environment Science Northwest Normal University Lanzhou 730070 China College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou 730070 China

A novel three-dimensional (3D) layered MoS2@graphene functionalized with nitrogen-doped graphene quantum dots (MoS2@N-GQDs-GR) composites as an enhanced electrochemical hydrogen evolution catalyst. The few layered MoS2 nanoflowers supported on N-GQDs-GR surface were elaborately fabricated by one-pot hydrothermal method, which MoS2 and N-GQDs-GR exist in a bonding manner of Mo-N. In addition, due to the layered MoS2 sheet edge exposes more hydrogen evolution active sites and N-GQDs-GR have high conductivity, the composites exhibit prominent electrocatalytic activity with a low overpotential 99 mV, a small Tafel slope 49.3 mV/dec. Therefore, that the current work will develop HER catalysts may replace Pt.

关键词： N-doped graphene quantum dots Graphene Molybdenum disulfide Catalyst Hydrogen evolution reaction

All-Optical Flip-Flop Based on Coupled SOA-PSW

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Photonic Sensors 2016年第4期6卷 366-371页

作者： lina wang Yongjun wang Chen WU Fu wang School of Electronic Engineering Beijing University of Posts and Telecommunications Beijing 100876 China

The semiconductor optical amplifier （SOA） has obvious advantages in all-optical signal processing, because of the simple structure, strong non-linearity, and easy integration. A variety of all-optical signal processing functions, such as all-optical wavelength conversion, all-optical logic gates and all-optical sampling, can be completed by SOA. So the SOA has been widespread concerned in the field of all-optical signal processing. Recently, the polarization rotation effect of SOA is receiving considerable interest, and many researchers have launched numerous research work utilizing this effect. In this paper, a new all-optical flip-flop structure using polarization switch （PSW） based on polarization rotation effect of SOA is presented.

关键词： Polarization switch all-optical flip-flop nonlinear polarization effect semiconductor optical amplifier

Study of All-Optical Sampling Using a Semiconductor Optical Amplifier

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Photonic Sensors 2017年第1期7卷 37-43页

作者： Chen WU Yongjun wang lina wang Fu wang School of Electronic Engineering Beijing University of Posts and Telecommunications Beijing 100876 China

All-optical sampling is an important research content of all-optical signal processing. In recent years, the application of the semiconductor optical amplifier （SOA） in optical sampling has attracted lots of attention because of its small volume and large nonlinear coefficient. We propose an optical sampling model based on nonlinear polarization rotation effect of the SOA. The proposed scheme has the advantages of high sampling speed and small input pump power, and a transfer curve with good linearity was obtained through simulation. To evaluate the performance of sampling, we analyze the linearity and efficiency of sampling pulse considering the impact of pulse width and analog signal frequency. We achieve the sampling of analog signal to high frequency pulse and exchange the positions of probe light and pump light to study another sampling.

关键词： All-optical sampling semiconductor optical amplifier nonlinear polarization rotation

Improved Fair and Dynamic Provable Data Possession Supporting Public Verification

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Wuhan University Journal of Natural Sciences 2013年第4期18卷 348-354页

作者： REN Zhengwei wang lina DENG Ruyi YU Rongwei Key Laboratory of Aerospace Information Security and Trusted Computing Ministry of Education School of Computer Wuhan University

A number of proposals have been suggested to tackle data integrity and privacy concerns in cloud storage in which some existing schemes suffer from vulnerabilities in data dynamics. In this paper, we propose an improved fairness and dynamic provable data possession scheme that supports public verification and batch auditing while preserves data privacy. The rb23Tree is utilized to facilitate data dynamics. Moreover, the fairness is considered to prevent a dishonest user from accusing the cloud service provider of manipulating the data. The scheme allows a third party auditor （TPA） to verify the data integrity without learning any information about the data content during the auditing process. Furthermore, our scheme also allows batch auditing, which greatly accelerates the auditing process when there are multiple auditing requests. Security analysis and extensive experimental evaluations show that our scheme is secure and efficient.

关键词： cloud storage data integrity public audit data dynamics privacy protection

A Dynamic Flow-Regulation Algorithm for Networks Overload Control

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Wuhan University Journal of Natural Sciences 2012年第2期17卷 103-108页

作者： wang lina PENG Ruiqing GUO Chi GUAN Yiping School of Computer Wuhan University Wuhan 430072Hubei China Key Laboratory of Aerospace Information Security andTrust Computing of Ministry of Education Wuhan UniversityWuhan 430072 Hubei China GPS Engineering Research Center Wuhan UniversityWuhan 430072 Hubei China

In this paper,a dynamic flow-regulation algorithm-oriented network overload control is *** can proportion-ally distribute the load between the high-degree nodes and the low-degree *** to the theoretical analysis,the net-work transmission performance of the proposed algorithm is in inverse proportion to the usage rate of the high-degree *** show that the new algorithm is more flexible and can enhance the network capability in most circumstances compared with the shortest path routing ***,the compari-son with the efficient routing algorism also reveals the prominent performance of the new algorithm.

关键词： network congestion flow-regulation network sur-vivability

Building Hot Snapshot Copy Based on Windows File System

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Wuhan University Journal of Natural Sciences 2006年第6期11卷 1503-1506页

作者： wang lina GUO Chi wang Dejun ZHU Qin School of Compuler Wuhan University Wuhan 430072 Hubei China

This paper describes a method for building hot snapshot copy based on windows-file system （HSCF）. The architecture and running mechanism of HSCF are discussed after giving a comparison with other on-line backup tecbnology. HSCF, based on a file system filter driver, protects computer data and ensures their integrity and consistency with following three steps： access to open files, synchronization and copy on-write. Its strategies for improving system performance are analyzed including priority setting, incremental snapshot and load balance. HSCF is a new kind of snapshot technology to solve the data integrity and consistency problem in online backup, which is different from other storage-level snapshot and Open File Solution.

关键词： snapshot backup and recovery windows file system filter driver data integrity and consistency

cMonitor: VMI-Based Fine-Grained Monitoring Mechanism in Cloud

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Wuhan University Journal of Natural Sciences 2014年第5期19卷 393-397页

作者： ZHANG Hao ZHAO Lei XU Lai wang lina School of Computer/The Key Laboratory of Aerospace Information and Trusted Computing of Ministry of Education Wuhan University The State Key Laboratory for Novel Software Technology Nanjing University

For the lack of detailed semantic in prior works, a transparent fine-grained monitoring technique （cMonitor） is pro- posed. Deployed outside the virtual machines, the cMonitor util- izes the elevated privileges of the virtual machine monitor to monitor the network connection, the processes and the relationship between them in protected systems by reconstructing fine-grained system semantics. These semantics contain process states and corresponding network connection. Experimental results show that cMonitor not only can be rapidly deployed in realistic cloud, but also can effectively and universally obtain these fine-grained semantics to assist detection of some advanced network attack. Meanwhile, the network performance overhead is about 3%, which is acceptable.

关键词： transparent monitoring virtual machine introspection fine-grained semantics