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Automated Penetration Testing with Fine-Grained Control through Deep Reinforcement Learning

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Journal of Communications and Information Networks 2023年第3期8卷 212-220页

作者： Xiaotong Guo Jing Ren Jiangong Zheng Jianxin Liao Chao Sun Hongxi Zhu tongyu song Sheng Wang Wei Wang University of Electronic Science and Technology of China Chengdu 611731China Peng Cheng Laboratory Shenzhen 518000China

Penetration testing(PT)is an active method of evaluating the security of a network by simulating various types of cyber attacks in order to identify and exploit *** PT involves a time-consuming and labor-intensive process that is prone to errors and cannot be easily *** have been investigating the potential of deep reinforcement learning(DRL)to develop automated PT(APT)***,using DRL in APT is challenged by partial observability of the environment and the intractability problem of the huge action *** paper introduces RLAPT,a novel DRL approach that directly overcomes these challenges and enables intelligent automation of the PT process with precise *** proposed method exhibits superior efficiency,stability,and scalability in finding the optimal attacking policy on the simulated experiment scenario.

关键词： APT cyber attack DRL

Statistical Study of Crosstalk Accumulation in WDM Optical Network with Different Topology

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Statistical Study of Crosstalk Accumulation in WDM Optical N...

2002年IEEE十区计算机、通信、控制和电机工程会议

作者： tongyu song Hanyi Zhang Yili Guo Xiaoping Zheng Department of Electronic Engineering, Tsinghua University, Beijing 100084

The robustness of optical networks with respect to theaccumulation of homodyne crosstalks was statisticallystudied in this paper, with emphases on the effect ofnetwork topology, identified by the network scale andphysical connectivity. The homodyne crosstalks, a majorand irreparable signal quality degrading factor, are inducedby non-ideal optical switches and demux/mux pairs atoptical cross-connect (OXC) in optical wavelengthdivision multiplexing (WDM) networks. For the first time,our numerical simulations revealed that in a given networkscale, there exists an optimum physical connectivity, atwhich the resultant overall accumulation of homodynecrosstalks can be minimized. We also took into account thepractical network scale and the limit of crosstalk ratio ofthe state-of-the-art optical switches and demultiplexers. Itwas shown that proper network design could greatly relaxthe requirements posed on the optical switches anddemultiplexers.

关键词： WDM OXC Statistical Study of Crosstalk Accumulation in WDM Optical Network with Different Topology

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中国教育适应WTO的着眼点

广西青年干部学院学报 2002年第2期12卷 26-27页

作者：宋彤宇广西青少年研究中心广西南宁530023

加入WTO之后,我国对教育服务的部分承诺,生源的国际流动、跨国办学、教育资源的国际化、外企的“人才本土化”,都深刻影响着中国教育。中国教育应更加重视政治素质、思想情操、职业道德、创新精神、一专多能为一体的综合素质培养,要注... 详细信息

加入WTO之后,我国对教育服务的部分承诺,生源的国际流动、跨国办学、教育资源的国际化、外企的“人才本土化”,都深刻影响着中国教育。中国教育应更加重视政治素质、思想情操、职业道德、创新精神、一专多能为一体的综合素质培养,要注重提高双语教学水平、健康心理体魄,学习国际交流礼仪和常识,熟悉与专业相关的国际惯例与法律,掌握科技发展中专业领域的新动态。

关键词： WTO 中国教育综合素质培养国际惯例法律国际礼仪

基于深度强化学习的卫星动态任务实时调度时效性优化方法

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中国科学：信息科学 2024年第10期54卷 2443-2469页

作者：李可熊顺蕊戴朋林宋彤雨禹旭敏李天瑞西南交通大学计算机与人工智能学院成都611756 可持续城市交通智能化教育部工程研究中心成都611756 四川省网络通信技术重点实验室成都611756 之江实验室杭州311121 中国航天科技集团第五研究院卫星与导航卫星总体部北京100094

随着全球卫星数量的快速增长和天基网络的蓬勃发展,优化卫星任务调度以确保任务观测时效性变得至关重要.任务调度方法不仅影响观测数据采集的效率,还直接关系到天基信息系统能否及时响应多种实时应用需求.然而,针对非周期动态任务,传统... 详细信息

随着全球卫星数量的快速增长和天基网络的蓬勃发展,优化卫星任务调度以确保任务观测时效性变得至关重要.任务调度方法不仅影响观测数据采集的效率,还直接关系到天基信息系统能否及时响应多种实时应用需求.然而,针对非周期动态任务,传统批处理调度方法存在局限性,需收集完所有任务信息后才能作出决策,而现有基于深度强化学习的实时调度方法也无法保证紧急任务的观测时效性.鉴于此,本文首次提出了“时效性优化的敏捷卫星动态任务实时调度”问题,该问题定义任务观测时效性指标,综合考虑任务观测延迟和接收任务的总收益,以最大化所有任务观测时效性.为了求解该问题,设计了两阶段时效性优化算法PPODL-HR.在任务选择阶段,提出了基于深度神经网络和长短期记忆网络的近端策略优化以加快模型的收敛速度;在资源分配阶段,设计了启发式规则,通过任务合并进一步降低任务切换所需的卫星转换时间.通过数值仿真和STK仿真验证,PPODL-HR算法在任务观测时效性方面优于传统的静态批处理调度和现有的动态任务实时调度算法,且适用于不同任务密度和不同紧急性任务占比的情况.特别地,与经典的动态任务实时调度算法相比,任务观测时效性提高了21.14%,任务观测延迟降低了4.55%,接收任务的总收益增加了20.70%.

关键词：时效性优化卫星任务调度动态任务实时调度深度强化学习任务观测时效性启发式规则

Restraining effect of nitrogen on coal oxidation in different stages:Non-isothermal TG-DSC and EPR research

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International Journal of Mining Science and Technology 2020年第3期30卷 387-395页

作者： tongyu Zhao Shengqiang Yang Xincheng Hu Wanxin song Jiawen Cai Qin Xu State Key Laboratory of Coal Resources and Safety Mining China University of Mining and TechnologyXuzhou 221116China School of Safety Engineering China University of Mining and TechnologyXuzhou 221116China Key Laboratory of Gas and Fire Control for Coal Mines(China University of Mining and Technology) Ministry of EducationXuzhou 221116China Department of Civil&Environmental Engineering University of AlbertaEdmonton T6G 2W2Canada

Nitrogen is widely used to prevent the spontaneous combustion of coal in underground coal mines. A spontaneous combustion-prone coal seam was studied to investigate the restraining effect of nitrogen on coal oxidation in different oxidation stages, based on non-isothermal thermogravimetry-differential scanning calorimetry(TG-DSC) and electron paramagnetic resonance(EPR) experiments. We found that the key feature temperatures grow steadily with increasing nitrogen in the oxidation environment,resulting in longer oxidation stages. The most significant finding is that there is a stagnation of the inhibitory effect of nitrogen on coal oxidation in the range of 85.0–95.0% nitrogen in the slow and the rapid oxidation stages, owing to the competitive adsorption of coal by nitrogen and oxygen. However, the restraining effect cannot be reflected by the kinetic parameters of the coal before it reaches the thermal decomposition and combustion stage. Nitrogen can also affect free radical types and free radical concentrations during coal oxidation: the higher the concentration of nitrogen in the oxidation environment, the greater the number of free radical types and the lower the free radical concentration. This experimental study improves the understanding of the restraining effect of nitrogen on coal oxidation in different oxidation stages and provides an important reference for coal fire prevention in spontaneous combustionprone coal seams.

关键词： Reaction heat Non-isothermal TG-DSC Activation energy Pre-exponential factor Free radical

Fiber Bragg Grating （FBG） Sensors Used in Coal Mines

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Photonic Sensors 2014年第2期4卷 120-124页

作者： Jinyu WANG tongyu LIU Guangdong song Hongjing XIE Lianqing LI Xiaolin DENG Zhijie GONG Key Laboratory of Optical Fiber Sensing Technology of Shandong Province Laser Institute Shandong Academy ofScience Jinan 250014 China Shandong Micro-Sensor Photonics Ltd. Jinan 250014 China Heat Energy and Electric Power Designing Institute of Shandong Province Jinan 250013 China Yanzhou Coal Industry Company Yanzhou 272102 China

The fiber Bragg grating （FBG） strain sensors were used for on-line monitoring of the stress variation of the lined wall in the gateway retained along the goaf of No. 3203 coal mining face in Dongtan Mine. The results showed that the FBG strain sensor with the wide measuring range could measure the stress variation accurately during the support process of the gateway retained along the goaf and could provide the basis to further optimize the support structure and to determine the support plan of the gateway retained along the goaf. The FBG micro-seismic sensors were used in Xinglong Mine to detect the micro-seismic signal. The signals were well received and analyzed to determine the location and energy level of the source of the micro-seismic event warning. The FBG sensors and detecting system show a significant potential for micro-seismic detection and geological disasters detection.

关键词： FB stress sensor acceleration sensor stress monitoring micro-seismic activity seismic signal

Nitromethane-Enabled Fluorination of Styrenes and Arenes

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CCS Chemistry 2020年第6期2卷 566-575页

作者： Weijin Wang tongyu Huo Xinyi Zhao Qixue Qin Yujie Liang song song Guosheng Liu Ning Jiao State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical SciencesPeking UniversityBeijing 100191 State Key Laboratory of Pharmaceutical Biotechnology Nanjing UniversityNanjing 210023Jiangsu State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai 200032

The electrophilic fluorination of unsaturated compounds provides a reliable approach to the generation of organofluorides,which are used widely in agrochemicals,pharmaceuticals,and other *** active electrophilic fluorine reagents,such as the fluorine molecule(F_(2))or xenon difluoride(XeF_(2)),have been applied in ***,these reagents suffer from their hazardous,toxic,corrosive,and poor selective properties,and the relatively weak electrophilicity of Selectfluor or N-fluorobenzenesulfonimide(NFSI)usually limits their broad ***,we disclose nitromethane(MeNO_(2))as an efficient activator of Selectfluor and NFSI,as well as a stabilizer of ***,the fluoro-azidation,fluoroamination,fluoroesterification of styrenes,and C–H fluorination of(hetero)arenes were well realized just by the facilitation of MeNO_(2).The mild reaction conditions and practicability made our current method a versatile protocol for accessing organofluorides.

关键词： fluoroazidation fluoroamination fluoroesterification electrophilic fluorination nitromethane

Changes and Trends in the Current Relations Between Saudi Arabia and Israel

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Asian Journal of Middle Eastern and Islamic Studies 2021年第2期15卷 172-188页

作者： song Niu tongyu Wu Middle East Studies Institute Shanghai International Studies UniversityShanghaiChina Center for the Study of Religion and China’s National Security Fudan UniversityShanghaiChina

The relations between Saudi Arabia and Israel have become increasingly public after the Trump administration took office in the ***,Saudi Arabia either holds inconsistent,ambiguous attitudes or gives short shrift to sensitive issues such as Jerusalem issue and the‘Deal of the Century.’Moreover,Saudi Arabia and Israel have been interacting with each other frequently in a public and official way,which further embodies this change in their *** relationship between Saudi Arabia and Israel has a long history,and it has experienced four development stages:mutual isolation,secret contact,open contact,and intimate *** changes in the current Saudi-Israeli relations have realistic interests,open interaction,and practical *** changes in the Saudi-Israeli relations have taken place under the combined effect of the realistic logic of the common political and security dilemma,the transformation of their respective diplomatic strategies and the complementary economic advantages of both sides,as well as the overall environmental changes in the Middle East,the overall fragmentation of the Arab world,and the ups and downs of the US Middle East *** Arabia and Israel have formed an anti-Iranian quasialliance,which has certain actual or potential *** the long run,although the changes in the Saudi-Israeli relations are conducive to bilateral cooperation and development in diverse fields,they bring no advantage to the overall stability of the Arab world,and the contradictions within the Arab world will further deepen,which,for example,is represented by a breakthrough in diplomatic relations between Israel and the UAE,Bahrain,Sudan,and ***,geostrategic competition in the Middle East will become more intense and will not contribute to the Middle East peace process.

关键词： Saudi-Israeli relations anti-Iranian‘quasi-alliance’ Trump Administration US

Research on the Surface Subsidence Monitoring Technology Based on Fiber Bragg Grating Sensing

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Photonic Sensors 2017年第1期7卷 20-26页

作者： Jinyu WANG Long JIANG Zengrong SUN Binxin HU Faxiang ZHANG Guangdong song tongyu LIU Junfeng QI Longping ZHANG Key Laboratory of Optical Fiber Sensing Technology of Shandong Province Laser Institute of Shandong Academy ofScience Jinan 250014 China Shandong Micro-Sensor Photomcs Ltd Jinan 250014 China Shandong Shenglong Safe Technology Co. Ltd Jinan 250032 China Laiwu Mining Co. Ltd of Laiwu Steel Group Laiwu 271100 China

In order to monitor the process of surface subsidence caused by mining in real time, we reported two types of fiber Bragg grating （FBG） based sensors. The principles of the FBG-based displacement sensor and the FBG-based micro-seismic sensor were described. The surface subsidence monitoring system based on the FBG sensing technology was designed. Some factual application of using these FBG-based sensors for subsidence monitoring in iron mines was presented.

关键词： Fiber Bragg Grating rock mass displacement micro-seismic optical fiber sensing surface subsidence