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Advances in ethnopharmacology,phytochemistry and pharmacology of Erigerontis Herba and its Chinese medicine prescriptions

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Traditional Medicine Research 2025年第1期10卷 44-61页

作者： yang Zhou Yuan-yan Huang Ding-Yue Shang Ying Chen Meng Tian Cheng-Yu Jin Xin Lu Bing-chun yan Han-Qing Pang Institute of Translational Medicine School of MedicineYangzhou UniversityYangzhou 225009China Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases Yangzhou UniversityYangzhou 225009China School of Medicine Nanjing University of Chinese MedicineNanjing 210023China State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources Guangxi Normal UniversityGuiling 541004China.

Erigerontis Herba(EH),the dried whole plant of Erigeron breviscapus,is well-known for circulating blood,activating meridians to alleviate pain,expelling wind,and clearing away *** has been extensively utilized in southern China for the treatment of stroke hemiplegia,chest stuffiness and pains,rheumatic arthralgia,headache,and *** review focuses on the botany,ethnopharmacology,phytochemistry,pharmacology and toxicity of EH and its related prescriptions to offer new insights for prospective research of *** information about EH was retrieved from ancient records and books,PubMed,China National Knowledge Infrastructure,Chinese Pharmacopoeia,Web of Science,Doctoral and Master’s Theses,and various electronic *** is a member of Compositae family and is mainly grown in southern *** Chinese medicine records that EH has the effects of circulating blood and removing blood stasis,expelling wind,and removing cold,as well as relieving rigidity of muscle and relieving *** now,nearly 200 ingredients have been characterized from EH,including flavonoids,caffeoyls,aromatic acids,coumarins,pentacyclic terpenoids,volatile oil and other *** extracts,EH related prescriptions(Dengzhan Xixin injection,Dengzhan Shengmai capsules,etc.)or compounds(scutellarin,scutellarein,etc.)possessed obvious therapeutic effects of ischemic stroke,cerebral hemorrhage,myocardial infarction,Alzheimer’s disease,diabetes and its complications,gastric cancer,bone,and joint degenerative ***,the major active compound of EH,has been used as a quality *** no obvious toxicity of EH has been *** to its traditional applications,ethnopharmacology,phytochemistry,pharmacology,and toxicity,EH was applied as a valuable herb for clinical application in food and medicine *** several compounds have been shown to possess diverse biological activities,the underlying mechanisms of their actions remain *** fully exploi

关键词： Erigeron breviscapus traditional applications ethnopharmacology phytochemistry pharmacology

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Molecular ferroelectrics for efficient perovskite solar cells

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Science China Chemistry 2021年第2期64卷 169-170页

作者： chun-Hua yan Beijing National Laboratory for Molecular Sciences State Key Laboratory of Rare Earth Materials Chemistry and ApplicationsPKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic ChemistryCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China College of Chemistry and Chemical Engineering Lanzhou UniversityLanzhou 730000China

During the past decade,the power conversion efficiencies(PCEs)of organic-inorganic hybrid perovskite solar cells(PSCs)have exceeded 25%[1],which is expected to be one of the candidates for the next generation of thin-film photovoltaic *** speaking,the performance of PSCs mainly depends on the light absorption capacity,defect passivation and photo-induced exciton separation and extraction of perovskite *** the light illumination,photo-induced excitons were separated and extracted by the built-in electric field of PSCs.

关键词： perovskite illumination inorganic

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Analysis of sliding electric contact characteristics in augmented railgun based on the combination of contact resistance and sliding friction coefficient

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Defence Technology（防务技术） 2020年第4期16卷 747-752页

作者： chun-yan Zhu Bao-ming Li National Key Laboratory of Transient Physics Nanjing University of Science and TechnologyChina

The contact resistance between the armature and rails is an important indicator of the contact characteristics in electromagnetic *** the contact resistance depends not only on the contact state but also on the contact stress and temperature,there are some limitations in analyzing the contact characteristics using only the contact *** this paper,the contact characteristics of the augmented railgun are analyzed by the combination of contact resistance and sliding friction ***,the theoretical calculation model of the contact resistance and friction coefficient of the augmented electromagnetic railgun is *** the contact resistance and friction coefficient are calculated by the measured values of the muzzle voltage,rail current and armature ***,the contact characteristics are analyzed according to the features of the waveforms of the contact resistance and the friction coefficient,and the analysis conclusions are verified by experimental rail *** results showed that:the aluminum melt film gradually formed on the contact surface reduces the contact resistance and the friction coefficient;the wear and erosion of the armature cause deterioration of the contact state;after the transition,the reliability of the sliding contact between the armature and rails decreases,resulting in an increase in contact resistance.

关键词： Augmented railgun Contact resistance Friction coefficient Contact characteristics

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Fault-Tolerate Three-Party Quantum Secret Sharing over a Collective-Noise Channel

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Chinese Physics Letters 2011年第2期28卷 35-38页

作者： LI chun-yan LI yan-Song Key Laboratory for Atomic and Molecular Nanosciences and Department of Physics Tsinghua UniversityBeijing 100084 Tsinghua National Laboratory for Information Science and technology Beijing 100084

We present a fault-tolerate three-party quantum secret sharing(QSS)scheme over a collective-noise ***-free subspaces are used to tolerate two noise modes,a collective-dephasing channel and a collective-rotating channel,*** this scheme,the boss uses two physical qubits to construct a logical qubit which acts as a quantum channel to transmit one bit information to her two *** agents can get the information of the private key established by the boss only if they *** boss Alice encodes information with two unitary *** single-photon measurements are required to rebuilt Alice's information and detect the security by the agents Bob and Charlie,not Bell-state ***,Almost all of the photons are used to distribute information,and its success efficiency approaches 100%in theory.

关键词： theory collective quantum

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Quantum Key Distribution Based on a Weak-Coupling Cavity QED Regime

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Chinese Physics Letters 2011年第12期28卷 28-31页

作者： LI chun-yan LI yan-Song State Key Laboratory of Low-dimensional Quantum Physics and Department of PhysicsTsinghua UniversityBeijing 100084 Tsinghua National Laboratory for Information Science and Technology Beijing 100084 Department of Physics National University of Defense TechnologyChangsha 410073

We present a quantum key distribution scheme using a weak-coupling cavity QED regime based on quantum dense *** entanglement statesof photons and electrons are used to distribute *** just need to transmit photons without storing them in the *** electron confined in a quantum dot,which is embedded in a microcavity,is held by one of the legitimate users throughout the whole communication *** the polarization of a single photon and spin of electron measurements are applied in this protocol,which are easier to perform than collective-Bell state *** optical apparatus,such as a special polarizing beam splitter in a circular basis and single photon operations,make it more flexible to realize under current *** efficiency will approach 100%in the ideal *** security of the scheme is also discussed.

关键词： process quantum scheme

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On complete convergence for Stout's type weighted sums of NOD sequence

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Applied Mathematics(A Journal of Chinese Universities) 2015年第3期30卷 340-346页

作者： YI yan-chun HU Di CHEN Ping-yan College of Mathematics and Statistics Hengyang Normal University Department of Mathematics Ji’nan University

In this paper, the complete convergence for the weighted sums of independent and identically distributed random variables in Stout [9] is improved and extended under NOD *** more optimal moment condition is given. The... 详细信息

关键词： NOD sequence Stout's type weighted sum complete convergence

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Controlled synthesis and optical properties of Ce^(3+)/Tb^(3+) co-doped BaGdF_5 nanocrystals

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Rare Metals 2015年第9期34卷 673-678页

作者： chun-yan Cao An Xie Xiao-Guang Yu College of Mathematics and Physics Jinggangshan University School of Materials Science and Engineering Xiamen University of Technology

Based on a hydrothermal method, the Ce3+/Tb3+ co-doped Ba Gd F5 nanocrystals were synthesized by controlling the introduction concentration of Ba2+ and Gd3+. The samples were characterized by X-ray diffraction(XRD), field emission scanning electron microscopy(FESEM) images, photoluminescence(PL) excitation, and emission spectra, as well as the photoluminescence dynamic decay curves. With the increase of the Ba2+ concentration in the synthesis procedure, the positions of diffraction peaks of XRD patterns move toward lower degree, and the case of the samples synthesized with the increase of the Gd3+ concentration is contrary, which consists well with each other. The FE-SEM images suggest that the BaGdF5 nanocrystals are in spherical morphology,and the average diameters decrease with the increase of Ba2+ or Gd3+ concentration. For the 4f–5d transition of Ce3+ is sensitive to the environment of local lattice, the PL excitation and emission spectra of the samples are different. The 4f–4f transition of Tb3+ also presents different optical properties in different host lattices. The variations of the optical properties of Ce3+ and Tb3+ as well as the lifetime of the 5D4+7F5 emission of Tb3+ are also consistent well with each other in the two series of samples.

关键词： Hydrothermal synthesis Optical properties Nanocrys

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Effect of SecinH3 on lung injury induced by sepsis of rats

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Asian Pacific Journal of Tropical Medicine 2015年第12期8卷 1020-1024页

作者： Feng Guo chun-yan yan Intensive Care Unit Sir Run Run Shaw HospitalSchool of MedicineZhejiang University Department of Anesthesiology.Sir Run Run Shaw Hospital School of MedicineZhejiang University

Objective:To study effect of SecinH3 on lung injury induced by the sepsis of ***:A total of 30 SPF Wistar rats were randomly divided into two groups,including 5 rats in the control group and 25 in the model *** intraperitoneal injection of endotoxinlipopolysaccharide(LPS) was performed to build the animal model of *** blood gas analysis was carried ***,change in the expression of pro-inflammatory factors of IL-1,IL-6 and TNF- a in the serum were *** study the mechanism of SecinH3 in the process of lung injury induced by the sepsis,the rats with the successful modeling of sepsis were randomly divided into two *** in the SecinH3 group were given the intraperitoneal injection of 100 μg/12 h SecinH3 for 24 h;while rats in the control group were given the injection of same solvent by the same *** blood was drawn from the heart by 500 μL for the blood gas analysis to detect the change in the expression of proinflammatory factors of IL-1,IL-6 and TNF-α in the treatment group and control *** separating the lung tissue,the Real-time PCR and western blotting were performed to analyze the effect of SecinH3 on the expression of cytohesins and also discuss the change of epidermal growth factor receptor(EGFR) and p-EGFR related to the signaling pathway of EGFR-p38mitogen-activated protein kinase that is regulated by ***:Three rats died within 4 h after the injection of LPS,while other 22 ones had the successful modeling,with the success rate of 88%.After being stimulated by LPS,compared with the control group,the arterial partial pressure of oxygen of rats in the treatment group was significantly reduced(P<0.05),while the partial pressure of CO_2 was significantly increased(P<0.01).After being treated by SecinH3,Pa/O_2 was increased with the sepsis,while Pa/CO_2 was decreased with the action of SecinH3,which indicated that SecinH3 had the certain 'repairing' ability for the lung ***3 might in

关键词： Scpsis LPS SecinH3 Acute lung injury

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A residual-based message passing algorithm for constraint satisfaction problems

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Communications in Theoretical Physics 2022年第3期74卷 77-86页

作者： chun-yan Zhao yan-Rong Fu Jin-Hua Zhao College of Science University of Shanghai for Science and TechnologyShanghai 200093China Guangdong Provincial Key Laboratory of Nuclear Science Institute of Quantum MatterSouth China Normal UniversityGuangzhou 510006China Guangdong-Hong Kong Joint Laboratory of Quantum Matter Southern Nuclear Science Computing CenterSouth China Normal UniversityGuangzhou 510006China

Message passing algorithms,whose iterative nature captures complicated interactions among interconnected variables in complex systems and extracts information from the fixed point of iterated messages,provide a powerful toolkit in tackling hard computational tasks in optimization,inference,and learning *** the context of constraint satisfaction problems(CSPs),when a control parameter(such as constraint density)is tuned,multiple threshold phenomena emerge,signaling fundamental structural transitions in their solution *** solutions around these transition points is exceedingly challenging for algorithm design,where message passing algorithms suffer from a large message fiuctuation far from *** we introduce a residual-based updating step into message passing algorithms,in which messages with large variation between consecutive steps are given high priority in the updating *** the specific example of model RB(revised B),a typical prototype of random CSPs with growing domains,we show that our algorithm improves the convergence of message updating and increases the success probability in finding solutions around the satisfiability threshold with a low computational *** approach to message passing algorithms should be of value for exploring their power in developing algorithms to find ground-state solutions and understand the detailed structure of solution space of hard optimization problems.

关键词： constraint satisfaction problems model RB message passing algorithms residuals of messages

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Application of A Fully Nonlinear Higher-Order Element Method for Modelling Three-Dimensional Wave Entry of A Cone

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China Ocean Engineering 2021年第6期35卷 814-827页

作者： YUAN Dong-chuang CHENG Yong JI chun-yan School of Naval Architecture and Ocean Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China

Fully nonlinear water entry of a cone into waves with gravity effect has been analyzed based on a three-dimensional(3D)higher-order boundary method(HOBEM).The total velocity potential at the initial time is divided into the incident and scattering *** the subsequent time steps,the solution of the velocity potential is defined as a whole through instantaneous boundary *** on the image theory,a modified Green function is applied to establish the integral equations so that only half of the calculation domain is considered and the seabed can be *** free surface elevation is tracked along a given azimuth plane in the polar coordinate system,while the horizontal motion of the water particle is updated by using a segment-spring analogy method,which redistributes nodes and maintains mesh connectivity according to linear *** auxiliary function is applied to solve the pressure distribution,instead of directly calculating time derivative of the velocity *** high accuracy of the present numerical method is achieved through a detailed convergence study and comparison with results in the *** are emphatically performed to examine the effects of gravity,wave nonlinearity,entry location,and oblique entry.

关键词： wave entry HOBEM time-domain simulation Green function segment-spring analogy method

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