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Prospects on mangrove knowledge services in the smart era: From plant atlas to knowledge graphs

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Science China Earth Sciences 2025年第1期68卷 111-127页

作者： zhi-Wei HOU Wenlong JING Cheng-zhi QIN Ji YANG qing XIA Xiaoling YIN Key laboratory of Guangdong for Utilization of Remote Sensing and Geographical Information System Guangdong Open Laboratory of Geospatial Information Technology and Application Guangzhou Institute of Geography Guangdong Academy of Sciences Southern Marine Science and Engineering Guangdong laboratory (Guangzhou) State Key laboratory of Resources and Environmental Information System Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of Sciences College of Resources and Environment University of Chinese Academy of Sciences School of Traffic & Transportation Engineering Changsha University of Science and Technology

Mangroves are crucial to the ecological security of the Earth and human well-being. Their management, conservation, and restoration are of great importance and necessitate the support of spatio-temporal information and multidisciplinary knowledge such as biology and ecology. Traditional knowledge services such as plant atlas provide illustrated textual knowledge of mangroves. However, this kind of service is oriented to information retrieval and is incapable of effectively mining and utilizing fragmented knowledge from multi-source heterogeneous data, facing the problem of “massive data, rare knowledge”. Knowledge graphs are capable of extracting, organizing, and fusing the knowledge contained in massive data into semantic networks that can be understood and computed by computers. They provide a solution for the realization of intelligent knowledge services. Focusing on the urgent need for mangrove knowledge acquisition, formal representation, and intelligent services, this paper proposes a research prospect on mangrove knowledge graphs and knowledge services. We first analyze the similarities and differences between various domain-specific concepts of Tupu. On this basis, we define the mangrove knowledge graph as a large-scale knowledge base that integrates multi-disciplinary knowledge and spatio-temporal information with mangrove ecosystems as the core. Then, we propose a research framework for mangrove knowledge services that can realize the transformation from multi-modal data to intelligent knowledge services, including multiple research levels such as ubiquitous data sensing and aggregation, knowledge organization and graph construction, and intelligent mangrove knowledge services. Subsequently, the methods and workflow for constructing mangrove knowledge graphs are introduced. Finally, we discuss the challenges and possible future directions of mangrove knowledge services in the smart era, including the construction of a mangrove knowledge system that integra

关键词： Mangrove Tupu Knowledge graph Multi-modal Knowledge service

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多智能体机器人系统中的自适应导航算法

上海交通大学学报 2001年第7期35卷 1015-1019页

作者：李智军罗青吕恬生上海交通大学机器人研究所上海200030

根据机器人的运动方程 ,考虑移动障碍和机器人的速度信息及在它们与机器人之间 3个方程的距离 ,提出了动态环境中控制机器人导航的算法 ,得出机器人避障最小距离 ,并针对环境中典型的情况进行理论分析 .该算法减少了机器人实时计算路径... 详细信息

根据机器人的运动方程 ,考虑移动障碍和机器人的速度信息及在它们与机器人之间 3个方程的距离 ,提出了动态环境中控制机器人导航的算法 ,得出机器人避障最小距离 ,并针对环境中典型的情况进行理论分析 .该算法减少了机器人实时计算路径的花费 ,特别适用于机器人在复杂、动态环境中实时路径控制 .所提算法的有效性由实验验证 .

关键词：自适应导航移动机器人避障路径多智能体机器人系统路径控制

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东濮盆地晚始新世生物群及其古环境的探讨

微体古生物学报 1988年第3期 315-322页

作者：赵志清吕红玉中原油田勘探开发研究院地质化验室

本文根据东濮盆地晚始新世动物群纵、横向分布的特征及古湖泊性质的分析,认为东濮盆地下第三系沙三段生物发育区与油气富集区相一致;沙三段沉积时的水体以半咸水为主,酸碱度为弱碱性;油气是在以干旱为主的深水凹陷环境下形成的。

关键词：沙三段盆地咸水下第三系油气富集区横向分布晚始新世地质构造介形类化石半咸水环境植物化石马厂地区沟鞭藻淡水环境文留地区化石种钙质超微化石生物群

Deciphering the molecular mechanisms of Simiaowan in the treatment of hyperuricemia: in vivo and in silico approaches

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Traditional Medicine Research 2025年第2期10卷 37-54页

作者： Yong-Chang Zeng Jun-Hong Wu Dan-Dan Xu Kang He Chang-qing liu li-Fei Song Zheng-zhi Wu Qian-Qian Jiang Shao-Yu liang Department of Neurology The First Affiliated Hospital of Shenzhen UniversityShenzhen 518020China Pharmaceutical Department The Affiliated TCM Hospital of Guangzhou Medical UniversityGuangzhou 510000China School of Pharmacy Guizhou University of Traditional Chinese MedicineGuiyang 550025China Guangzhou Zeli Medical Technology Co. Ltd.Guangzhou 510700China

Background:Simiaowan(SMW),a well-known traditional Chinese medicine,has been employed to treat hyperuricemia(HUA)and gout for ***,the bioactive components and underlying mechanisms have not been *** objective of this study was to identify the active components and potential mechanisms of SMW by integrating pharmacological experimentation,serum pharmacochemistry,network pharmacology and molecular ***:HUA rats modelling by high-fat/high-sugar diet and potassium oxonate/adenine oral administration were used to evaluate the pharmacodynamic effects of ***-Q-Exactive-MS/MS was employed to detect the bioactive components present in SMW-containing *** pharmacology and molecular docking were utilized to elucidate the potential targets and underlying ***:SMW effectively ameliorated HUA rats via the inhibition of uric acid(UA)production,promotion of UA excretion,improvement of lipid and glucose metabolic abnormalities,antioxidant,anti-inflammatory and anti-insulin resistance effects.A total of 73 compounds detected in SMW-containing serum were identified as potential active components,with alkaloids,flavonoids,organic acids,and terpenoids emerging as the primary active *** 203 corresponding targets were obtained as SMW anti-HUA/gout targets,which mainly participated in apoptosis,insulin resistance,TNF,PI3K-Akt,HIF-1,NF-κB,MAPK,Il-17 and TlR signaling *** docking indicated that active compounds(***,phellodendrine,quercetin,formononetin,ferulic acid)had superior binding abilities to the key targets(*** carrier family 22 member 12(URAT1),solute carrier family 22 member 6(OAT1),ATP-binding cassette sub-family G member 2(ABCG2),solute carrier family 2,facilitated glucose transporter member 9(GlUT9),xanthine dehydrogenase/oxidase(XDH),transcription factor p65(RElA),toll-like receptor 4(TlR4),prostaglandin G/H synthase 2(PTGS2),caspase-3(CASP3),insulin(INS)).Conclusion:S

关键词： hyperuricemia network pharmacology serum pharmacochemistry Simiaowan UPlC-Q-Exactive-MS/MS

The equilibrium stability for a smooth and discontinuous oscillator with dry friction

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Acta Mechanica Sinica 2016年第2期32卷 309-319页

作者： zhi-Xin li qing-Jie Cao Alain léger School of Astronautics Centre for Nonlinear Dynamics Research Harbin Institute of Technology Harbin 150001 China laboratoire de Mecanique et d' Acoustique CNRS 31 Chemin Joseph Aiguier 13402 Marseille Cedex 20 France

In this paper,we investigate the equilibrium stability of a Filippov-type system having multiple stick regions based upon a smooth and discontinuous（SD） oscillator with dry *** sets of equilibrium states of the system are analyzed together with Coulomb friction conditions in both（ f_n,f_s） and（x,˙x） *** the stability analysis,lyapunov functions are constructed to derive the instability for the equilibrium set of the hyperbolic type and la Salle＇s invariance principle is employed to obtain the stability of the nonhyperbolic *** demonstrates the existence of a thick stable manifold and the interior stability of the hyperbolic equilibrium set due to the attractive sliding mode of the Filippov property,and also shows that the unstable manifolds of the hyperbolic-type are that of the endpoints with their saddle *** calculations show a good agreement with the theoretical analysis and an excellent efficien y of the approach for equilibrium states in this particular Filippov ***,the equilibrium bifurcations are presented to demonstrate the transition between the smooth and the discontinuous regimes.

关键词： SD oscillator Equilibrium set Dry friction Coulomb’s cone

Automatic pattern acquisition from game records in GO

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The Journal of China Universities of Posts and Telecommunications 2007年第1期14卷 100-105页

作者： lIU zhi-qing DOU qing School of Software Engineering Beijing University of Posts and Telecommunications Beijing 100876 China

Computer programs of GO are typically constructed using a knowledge-based approach with heuristics and pattern matching because of enormous complexities of the game. In this approach, quantity, quality, and consistency of patterns used in computer programs of GO to a large extent determine the strengths of the programs. This study presents an effective method to acquire automatically comprehensive GO patterns from large collections of game records. Statistical usages of the patterns ensure consistency and quality of the patterns, which in turn can help improve the strengths of computer GO programs. Additionally, statistical usages of patterns from different sources of game records clearly show subtle and significant discrepancies among various types of GO players, and clarify certain myths in the playing of GO.

关键词： computer games automatic knowledge acquisition,spatial patterns recognition

Analysis of the periodic solutions of a smooth and discontinuous oscillator

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Acta Mechanica Sinica 2013年第4期29卷 575-582页

作者： zhi-Xin li qing-Jie Cao Marian Wiercigroch Alain léger Centre for Nonlinear Dynamics Research Harbin Institute of Technology School of Astronautics Centre for Applied Dynamics Research School of Engineering University of Aberdeen King's College laboratoire de Mécanique et d' Acoustique CNRS 31 Chemin Joseph Aiguier 13402 Marseille Cedex 20 France

In this paper, the periodic solutions of the smooth and discontinuous （SD） oscillator, which is a strongly irra- tional nonlinear system are discussed for the system having a viscous damping and an external harmonic excitation. A four dimensional averaging method is employed by using the complete Jacobian elliptic integrals directly to obtain the perturbed primary responses which bifurcate from both the hyperbolic saddle and the non-hyperbolic centres of the un- perturbed system. The stability of these periodic solutions is analysed by examining the four dimensional averaged equa- tion using lyapunov method. The results presented herein this paper are valid for both smooth （e 〉 0） and discontin- uous （ce = 0） stages providing the answer to the question why the averaging theorem spectacularly fails for the case of medium strength of external forcing in the Duffing system analysed by Holmes. Numerical calculations show a good agreement with the theoretical predictions and an excellent efficiency of the analysis for this particular system, which also suggests the analysis is applicable to strongly nonlinear systems.

关键词： SD oscillator ~ Averaging method. Periodic so-lution ~ Irrational nonlinearity ~ Elliptic integral

In situ synthesis of palladium nanoparticles on multi-walled carbon nanotubes and their electroactivity for ethanol oxidation

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Rare Metals 2013年第6期32卷 586-591页

作者： qing-Feng Yi li-zhi Sun School of Chemistry and Chemical Engineering Hunan University of Science and Technology

Pd nanoparticles(Pd-NPs)were prepared and directly anchored on the surface of multi-walled carbon nanotubes(MWCNTs)in the absence of chemical reduction agent,where MWCNTs were used as both the chemical reduction agent and the support substrate of *** of various surfactants on the in situ deposition of PdNPs on MWCNTs was *** MWCNTs were modified with a cationic surfactant(hexadecyl trimethyl ammonium bromide,CTAB),the amount of the Pd-NPs(Pd-NP/CTAB-MWCNT)generated by such an in situ deposition method gets a notable increase,and the size of the as-synthesized Pd-NPs becomes smaller,compared with those in the absence of any surfactant(Pd-NP/MWCNT)or in the presence of an anionic surfactant SDS(Pd-NP/SDS-MWCNT)and a neutral surfactant OP(PdNP/OP-MWCNT).Results show that the MWCNTs modified with CTAB are propitious to the in situ reduction of Pd2?.Among the prepared catalysts,Pd-NP/CTABMWCNT displays the highest electroactivity for ethanol oxidation in alkaline media.

关键词： Pd nanoparticle Multi-walled carbon nanotube Ethanol oxidation Surfactant

Wave Propagation in Submerged Pipe Conveying Fluid

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Acta Mechanica Solida Sinica 2019年第4期32卷 483-498页

作者： qing-tian Deng zhi-chun Yang School of Sciences Changan University Middle-Section of Naner Huan RoadX i’an 710064 Shaanxi People’s Republic of China Department of Mechanical Engineering University of CincinnatiCincinnatiOH 45221-0072USA School of Aeronautics Northwestern Polytechnical University127 Youyi XiluXi’an 710072ShaanxiPeople's Republic of China

A problem of wave propagation in submerged pipe conveying fluid is discussed in this paper. Three different fluid-pipe models are considered: the pipe conveying non-viscous fluid immersed in still fluid, the pipe conveying non-viscous fluid considering hydrostatic pressure and the pipe conveying viscous fluid considering hydrostatic pressure. The Fliiggle shell model and the hydrostatic pressure considered as the static prestress are introduced for the description of pipe and external/internal fluids. The effects of steady viscous forces are obtained by using the time-mean Navier-Stokes equations, and the perturbation pressures can be determined by means of potential flow theory. The wave dispersion curves of a submerged pipe conveying fluid are obtained numerically by considering the coupling conditions. The effects of internal fluid velocity and hydrostatic pressure on phase velocity are also discussed.

关键词： Wave propagation Submerged pipe Hydrostatic pressure Shell theory Conveying fluid Viscous fluid