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TAKAP: A Lightweight Three-Party Authenticated Key Agreement Protocol with User Anonymity

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Chinese Journal of Electronics 2021年第4期30卷 686-696页

作者： QIAO Hui DONG Xuewen SHEN Yulong LIU Haozhe yang lingxiao School of Computer Science and Technology Xidian University Shaanxi Key Laboratory of Network and System Security Xidian University

The three-party authenticated key agreement protocol is a significant cryptographic mechanism for secure communication, which encourages two entities to authenticate each other and generate a shared session key with the assistance of a trusted party(remote server) via a public channel. Recently, Wang et al. put forward a three-party key agreement protocol with user anonymity and alleged that their protocol is able to resist all kinds of attacks and provide multifarious security features in Computer Engineering & Science, No.3, ***, we show that Wang et al.’s protocol is vulnerable to the password guessing attack and fails to satisfy user anonymity and perfect secrecy. To solve the aforementioned problems, a lightweight chaotic mapbased Three-party authenticated key agreement protocol(short for TAKAP) is proposed, which not only could provide privacy protection but also resist a wide variety of security attacks. Furthermore, it is formally proved under Burrows-Abadi-Needham(BAN) logic. Simultaneously,the performance analysis in this paper demonstrates that the proposed TAKAP protocol is more secure and efficient compared with other relevant protocols.

关键词： Three-party Authenticated key agreement Chaotic map Anonymity Security attacks

Control for Underactuated Reentry Aircraft in Small Angle of Attack

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Transactions of Nanjing University of Aeronautics and Astronautics 2017年第6期34卷 593-599页

作者： Min Changwan Wang Ying Xiao Zhen Dai Shicong yang lingxiao Science and Technology on Space Physics Laboratory Beijing 100076P.R.China

The control problem for under-actuated reentry vehicle like HTV-2 is considered with small angle of *** control strategy for an aircraft with positive lateral control departure parameter relies on strong lateral stability,which declines with the decrease of the angle of ***,to control the lateral-directional motion in a stable state is hard and even impossible in some scenarios where the under-actuated reentry vehicle,like HTV-2,flies in a low angle of *** address this problem,the lateral-directional open-loop motion characteristics are *** results show that in an uncontrolled state,the lateral-directional motion can automatically converge to stabilization thanks to the aerodynamic damping ***,a method of turning-off the lateral-directional control and inviting aerodynamic damping to control can achieve *** six-degree-of-freedom simulation show that the lateral-directional motion can be stabilized by the aerodynamic damping,and the lateral position error caused by the bank angle deviation is limited near the zero-rise angle of *** control strategy is effective.

关键词： underactuated reentry vehicle lateral control deviation parameter control strategy small angle of attackl aerodynamic damping

Particle size distributions, PM2.5 concentrations and water- soluble inorganic ions in different public indoor environments： a case study in Jinan, China

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Frontiers of Environmental Science & Engineering 2013年第1期7卷 55-65页

作者： Can DONG lingxiao yang Chao YAN Qi YUAN yangchun YU Wenxing WANG Environment Research Institute Shandong University Jinan 250100 China School of Environmental Science and Engineering Shandong University Jinan 250100 China Chinese Research Academy of Environmental Sciences Beijing 100012 China

In this study, we collected particles with aerodynamic diameter ?2.5 μm (PM2.5) from three different public indoor places (a supermarket, a commercial office, and a university dining hall) in Jinan, a medium-sized city located in northern China. Water-soluble inorganic ions of PM2.5 and particle size distributions were also measured. Both indoor and outdoor PM2.5 levels (102.3–143.8 μg·m?3 and 160.2–301.3 μg·m?3, respectively) were substantially higher than the value recommended by the World Health Organization (25 μg·m?3), and outdoor sources were found to be the major contributors to indoor pollutants. Diurnal particle number size distributions were different, while the maximum volume concentrations all appeared to be approximately 300 nm in the three indoor locations. Concentrations of indoor and outdoor PM2.5 were shown to exhibit the same variation trends for the supermarket and dining hall. For the office, PM2.5 concentrations during nighttime were observed to decrease sharply. Among others, SO 4 2?, NH 4 + and NO 3 ? were found to be the dominant water-soluble ions of both indoor and outdoor particles. Concentrations of NO 3 ? in the supermarket and office during the daytime were observed to decrease sharply, which might be attributed to the fact that the indoor temperature was much higher than the outdoor temperature. In addition, domestic activities such as cleaning, water usage, cooking, and smoking also played roles in degraded indoor air quality. However, the

关键词： indoor air quality indoor/outdoor ratios size distributions particles with aerodynamic diameter ?2.5 μm (PM2.5) water-soluble ions

Origin and evolution of green plants in the light of key evolutionary events

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Journal of Integrative Plant Biology 2022年第2期64卷 516-535页

作者： Zhenhua Zhang Xiaoya Ma Yannan Liu lingxiao yang Xuan Shi Hao Wang Runjie Diao Bojian Zhong College of Life Sciences Nanjing Normal UniversityNanjing210023 China

Green plants(Viridiplantae)are ancient photosynthetic organisms that thrive both in aquatic and terrestrial ecosystems,greatly contributing to the changes in global climates and *** progress has been made toward understanding the origin and evolution of green plants,and plant biologists have arrived at the consensus that green plants first originated in marine deep-water environments and later colonized fresh water and dry *** origin of green plants,colonization of land by plants and rapid radiation of angiosperms are three key evolutionary events during the long history of green ***,the comprehensive understanding of evolutionary features and molecular innovations that enabled green plants to adapt to complex and changeable environments are still ***,we review current knowledge of phylogenetic relationships and divergence times of green plants,and discuss key morphological innovations and distinct drivers in the evolution of green ***,we highlight fundamental questions to advance our understanding of the phenotypic novelty,environmental adaptation,and domestication of green plants.

关键词： adaptation divergence times green plants key innovations phylogenetics terrestrialization

Size-resolved aerosol ionic composition and secondary formation at Mount Heng in South Central China

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Frontiers of Environmental Science & Engineering 2013年第6期7卷 815-826页

作者： Xinfeng WANG Wenxing WANG Likun XUE Xiaomei GAO Wei NIE yangchun YU yang ZHOU lingxiao yang Qingzhu ZHANG Tao WANG Environment Research Institute Shandong University Jinan 250100 China Department of Civil and Environmental Engineering Hong Kong Polytechnic University Hong Kong China

To understand the size-resolved aerosol ionic composition and the factors influencing secondary aerosol formation in the upper boundary layer in South Central China, size-segregated aerosol samples were collected using a micro-orifice uniform deposit irnpactor （MOUDI） in spring 2009 at the summit of Mount Heng （1269 m asl）, followed by subsequent laboratory analyses of 13 inorganic and organic water-soluble ions. During non- dust-storm periods, the average PM1.8 concentration was 41.8 μg·m^-3, contributing to 55% of the PM10. Sulfates, nitrates, and ammonium, the dominant ions in the fine particles, amounted to 46.8% of the PM1.8. Compared with Mount Tai in the North China Plain, the concentrations of both fine and coarse particles and the ions contained therein were substantially lower. When the air masses from Southeast Asia prevailed, intensive biomass burning there led to elevated concentrations of sulfates, nitrates, ammonium, potassium, and chloride in the fine particles at Mount Heng. The air masses originating from the north Gobi brought heavy dust storms that resulted in the remarkable production of sulfates, ammonium, methane sulfonic acid, and oxalates in the coarse particles. Generally, the sulfates were primarily produced in the form of （NH4）2SO4 in the droplet mode via heterogeneous aqueous reactions. Only approximately one-third of the nitrates were distributed in the fine mode, and high humidity facilitated the secondary formation of fine nitrates. The heterogeneous formation of coarse nitrates and ammonium on dry alkaline dust surfaces was found to be less efficient than that on the coarse particles during non-dust-storm periods.

关键词： aerosol water-soluble ions size distributions,secondary formation dust storm Mount Heng

Advocating for the implementation of SonoVue microbubbles as pressure sensors: a call to action for clinical noninvasive pressure estimation

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Hepatobiliary Surgery and Nutrition 2024年第4期13卷 690-695页

作者： Ao Wen lingxiao yang Tao Lv Huayu yang Fei Li Yilei Mao Gang Xu Jia-Yin yang Liver Transplant Center Organ Transplant CenterWest China Hospital of Sichuan UniversityChengduChina Laboratory of Liver Transplantation Key Laboratory of Transplant Engineering and ImmunologyNational Health Commission(NHC)West China Hospital of Sichuan UniversityChengduChina West China Hospital West China School of MedicineSichuan UniversityChengduChina Department of Liver Surgery Peking Union Medical College(PUMC)HospitalPUMC and Chinese Academy of Medical SciencesBeijingChina Paul C.Lauterbur Research Center for Biomedical Imaging Shenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhenChina

Pressure measurement within the body is of pivotal significance in the diagnosis of vascular and organ-related diseases associated with hydrostatic *** present,the most commonly used clinical method is to insert a catheter along with a pressure sensor and then guide it to the area of interest through vessels such as central venous pressure(CVP).However,the presence of sensors within the vessel of interest will inevitably cause alterations to the circulation and thus affect blood ***,the use of invasive methods does not allow monitoring of every area inside the body.

关键词： SonoVue microbubbles pressure estimation noninvasive

Strong ozone production at a rural site in the North China Plain: Mixed effects of urban plumes and biogenic emissions

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Journal of Environmental Sciences 2018年第9期30卷 261-270页

作者： Ruihan Zong Xue yang Liang Wen Caihong Xu Yanhong Zhu Tianshu Chen Lan Yao Liwei Wang Junmei Zhang lingxiao yang Xinfeng Wang Min Shao Tong Zhu Likun Xue Wenxing Wang Environment Research Institute Shandong University Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3) Fudan Tyndall Center Department of Environmental Science and Engineering Fudan University State Key Laboratory for Environment Simulation and Pollution Control College of Environmental Sciences and EngineeringPeking University

Regional ozone （O3） pollution has drawn increasing attention in China over the recent decade, but the contributions from urban pollution and biogenic emissions have not been clearly elucidated. To better understand the formation of the regional O3 problem in the North China Plain （NCP）, intensive field measurements of O3 and related parameters were conducted at a rural site downwind of Ji＇nan, the capital city of Shandong province, in the summer of 2013. Markedly severe 03 pollution was recorded, with the 03 mixing ratios exceeding the Chinese national ambient air quality standard on 28 days （a frequency of 78%） and with a maximum hourly value of 198 ppbv. Extensive regional transport of well-processed urban plumes to the site was identified. An observation-constrained chemical box model was deployed to evaluate in situ photochemical O3 production on two episodes. The results show that the in situ formation accounted for approximately 46% of the observed O3 accumulation, while the remainder （54%） was contributed by regional transport of the O3-laden urban plumes. The in situ ozone production was in a mixed controlled regime that reducing either NOx or VOCs would lead to a reduction of ozone formation. Biogenic VOCs played an important role in the local ozone formation. This study demonstrates the significant mixed effects of both anthropogenic pollution from urban zones and biogenic emission in rural areas on the regional 03 pollution in the NCP region, and may have general applicability in facilitating the understanding of the formation of secondary pollution over China.

关键词： Ozone Regional transport In situ photochemical formation Biogenic VOCs Observation-based model North China Plain

Phylogenomic Insights into Deep Phylogeny of Angiosperms Based on Broad Nuclear Gene Sampling

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Plant Communications 2020年第2期1卷 77-87页

作者： lingxiao yang Danyan Su Xin Chang Charles SPFoster Linhua Sun Chien-Hsun Huang Xiaofan Zhou Liping Zeng Hong Ma Bojian Zhong College of Life Sciences Nanjing Normal UniversityNanjingChina School of Life and Environmental Sciences University of SydneySydneyAustralia Peking-Tsinghua Center for Life Sciences Academy for Advanced Interdisciplinary StudiesPeking UniversityBeijingChina State Key Laboratory of Genetic Engineering and Collaborative Innovation Center for Genetics and Development Ministry of Education Key Laboratory of Biodiversity Sciences and Ecological EngineeringSchool of Life SciencesFudan UniversityShanghaiChina Guangdong Province Key Laboratory of Microbial Signals and Disease Control Integrative Microbiology Research CentreSouth China Agricultural UniversityGuangzhouChina Institute for Integrative Genome Biology and Department of Botany and Plant Sciences University of CaliforniaRiversideCAUSA Department of Biology Huck Institutes of the Life SciencesPennsylvania State UniversityUniversity ParkPAUSA

Angiosperms(flowering plants)are the most diverse and species-rich group of *** vast majority(99.95%)of angiosperms form a clade called Mesangiospermae,which is subdivided into five major groups:eudicots,monocots,magnoliids,Chloranthales,and *** relationships among these Mesangiospermae groups have been the subject of long *** this study,we assembled a phylogenomic dataset of 1594 genes from 151 angiosperm taxa,including representatives of all five lineages,to investigate the phylogeny of major angiosperm lineages under both coalescent-and concatenationbased *** dissected the phylogenetic signal and found that more than half of the genes lack phylogenetic information for the backbone of angiosperm *** further removed the genes with weak phylogenetic signal and showed that eudicots,Ceratophyllales,and Chloranthales form a clade,with magnoliids and monocots being the next successive sister *** frequencies of gene tree conflict are suggestive of incomplete lineage sorting along the backbone of the angiosperm *** analyses suggest that a fully bifurcating species tree may not be the best way to represent the early radiation of ***,we inferred that the crown-group angiosperms originated approximately between 255.1 and 222.2 million years ago,and Mesangiospermae diversified into the five extant groups in a short time span(27 million years)at the Early to Late Jurassic.

关键词： Mesangiospermae gene tree conflict phylogenomics phylogenetic signal divergence times

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升力体飞行器能量近似最优倾斜转弯飞行策略

北京航空航天大学学报 2016年第11期42卷 2540-2547页

作者：杨丁刘明杨凌霄杨明葛亚杰国防科学技术大学航天科学与工程学院长沙410073 空间物理重点实验室北京100076

升力体飞行器返回地球大气层内时受到热流、动压及过载等约束条件,为使得飞行器在倾斜转弯飞行过程中能量损失最小,需要研究一种能量最优的倾斜转弯机动飞行策略。本文的主要研究内容包括:从再入动力学模型出发,分析了升力体飞行器倾斜... 详细信息

升力体飞行器返回地球大气层内时受到热流、动压及过载等约束条件,为使得飞行器在倾斜转弯飞行过程中能量损失最小,需要研究一种能量最优的倾斜转弯机动飞行策略。本文的主要研究内容包括:从再入动力学模型出发,分析了升力体飞行器倾斜转弯的弹道特性,推导了终端速度与倾斜转弯幅度相关的解析解,提出了一种多约束条件下能量近似最优的倾斜转弯飞行策略;为进一步验证飞行策略的能量近似最优性,建立了能量最优的非线性轨迹优化模型,通过高斯伪谱法进行求解,获得能量最优的飞行轨迹。仿真结果表明,该飞行策略与优化方法获得的结果高度一致,并且该方法求解效率更高,工程应用性更强。

关键词：升力体飞行器近似最优飞行策略倾斜转弯机动最优控制高斯伪谱法