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Zoological Research 2022年第2期43卷 221-224页

作者： zong-min lu Xue-Jian Li Wen-Jian lu Jin-Qing Huang Tian-Ke Xu Gang Huang Fen-Qiong Qian Peng Yang Shu-Guo Chen Wei-Ning Mao Ya-Hui Zhao Key Laboratory of Zoological Systematics and Evolution Institute of ZoologyChinese Academy of SciencesBeijing 100101China Qujing Aquaculture Station QujingYunnan 655099China Shanghai Universities Key Laboratory of Marine Animal Taxonomy and Evolution Shanghai Ocean UniversityShanghai 201306China Xuanwei Fisheries Management Station XuanweiYunnan 655499China School of Basic Medical Sciences Guilin Medical UniversityGuilinGuangxi 541001China

Triplophysa xuanweiensis ***.,a new blind loach species from the family Nemacheilidae,is described based on specimens collected from a subterranean river in Xuanwei City,Yunnan Province,*** new species can be distinguished from all known congeners by a combination of the following characters:eyes absent,dorsal-fin origin anterior to pelvic-fin origin,tip of pelvic fin reaching anus,dorsal fin with 7-8 branched rays,caudal fin forked with 16-18 branched rays,body scaleless and colorless,lateral line complete,and posterior chamber of air bladder well developed and connected to anterior chamber by long,slender tube.

关键词： blind bladder reaching

De novo synthesis of atropisomeric benzofurans via Cu/SPDO complex catalyzed asymmetric formal [3 + 2] annulation

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Science China Chemistry 2025年第1期68卷 174-180页

作者： Fan-Xiao Meng Xing-Yu Wang Ka lu Ju-Song Yang Fu-min Zhang Ai-Jun Ma Bao Du Yong-Qiang Tu State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University School of Chemistry and Chemical Engineering Shanghai Jiao Tong University School of Biotechnology and Health Sciences Wuyi University

Herein, the de novo synthesis of atropisomeric benzofurans through the Cu/spirocyclic-pyrrolidine-oxazoline(SPDO) complex catalyze asymmetric formal [3 + 2] cycloaddition between quinones and ynamides is explored, producing a range of structurally diverse axially chiral benzofurans in satisfactory yields with good to excellent enantioselectivities. Furthermore, density functional theory calculations were applied to explain the possible reaction mechanism.

关键词： benzofuran atropisomers novel de novo synthetic strategy asymmetric formal [3 + 2] cycladdition Cu/SPDO complex DFT calculations

Impact of Phase-locked Loop Dynamics on Transient Over-voltage in VSC due to Switching Delays

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Dianwang Jishu/Power System Technology 2025年第1期49卷 284-294页

作者： Zhao, Boyuan lu, Chen Chen, Lei min, Yong Li, luyang Department of Electrical Engineering Tsinghua University Haidian District Beijing 100084 China North China Branch of State Grid Corporation of China Xicheng District Beijing 100053 China

With the implementation of the "emission peak, carbon neutrality" strategy, the proportion of renewable energy is increasing, and the grid strength of the power system is getting weaker. This leads to high transient over-voltage problems caused by AC short circuits. The paper analyzes the impact of phase-locked loop (PLL) dynamics on the transient over-voltage in a voltage source converter (VSC) due to switching delays after low voltage ride-through (LVRT). The results show that the point of common coupling (PCC) voltage phase generally jumps backward at the moment of fault clearing, and the reactive current during the switching delay no longer equals the reference value due to PLL. When VSC only injects reactive current during LVRT, the phenomenon will improve the transient over-voltage. However, if the active current is injected simultaneously, the transient over-voltage level may deteriorate under some parameters of PLL. In addition, this paper also analyzes the principle of PLL parameter adjustment to ensure that the PLL dynamics improve the transient over-voltage. Electromagnetic transient simulation by MATLAB verifies the results. © 2025 Power System Technology Press. All rights reserved.

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A novel dynamic equivalence method for grid-connected wind farm

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2008年第4期9卷 558-563页

作者： Jia-geng QIAO zong-xiang lu Yong min State Key Laboratory of Power Systems Department of Electrical Engineering Tsinghua University Beijing 100084 China

Dynamic equivalence of the wind farm is a fundamental problem in the simulation of a power system connected with wind farms because it is unpractical to model every generator in a wind farm in detail. In this paper, an Equivalence Method based on the Output Characteristics (EMOC) is proposed, with which the wind farm composed of Squirrel-Cage Induction Generators (SCIGs) can be equivalent to one generator. By considering the diversity of wind generators and special operating characteristics of a wind farm, the equivalent generator based on EMOC responds accurately in various faults. No matter whether the wind farm is integrated in grid or just programmed, EMOC can be used to acquire an accurate equivalent generator. Simulation of the dynamic equivalence of an SCIG wind farm validated the method.

关键词： Grid-connected wind farm Dynamic equivalence Squirrel-Cage Induction Generator (SCIG) Genetic algorithm

Reconstruction of plasmoid and traveling compression region in the near-Earth magnetotail

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Science China(Technological Sciences) 2015年第2期58卷 330-337页

作者： lu Shang Wen zong Qiu Gang VOGIATZIS Ioannis WANG Yong Fu TIAN An min Institute of Space Physics and Applied Technology Peking University Department of Electrical and Computer Engineering Democritus University of Thrace Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment School of Space Science and PhysicsShandong University at Weihai

Cluster spacecraft observed an earthward flowing plasmoid along with a travelling compression region （TCR） structure in southern plasma sheet boundary layer （PSBL） at 21：09 UT of September 19, 2001. We have reconstructed the two-dimensional topology of the magnetic field structure observed by C1 using Grad-Shafranov reconstruction method. Results show that CI passed through part of a plasmoid, which compressed the lobe magnetic field and formed a TCR. The size of the whole plas- moid structure in X direction is estimated to be about 3 Re. Furthermore, using multi-spacecraft observations, we have found some detailed information about this structure. First, C1 observed bi-streaming electron components, which supports our sug- gestion that the spacecraft passed through closed field lines. Second, a small magnetic field perturbation within this plasmoid accompanied by slight decrease in electron flux suggests that a flux rope core might exist at the center of the plasmoid.

关键词： plasma sheet boundary layer plasmoid traveling compression region Grad-Shafranov method

Calculation of Equation of State of QCD at Finite Chemical Potential and Temperature

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Communications in Theoretical Physics 2008年第5期49卷 1269-1274页

作者： zong Hong-Shi HOU Feng-Yao SUN Wei-min lu Xiao-Fu Department of Physics Nanjing University Nanjing 210093 China Joint Center for Particle Nuclear Physics and Cosmology Nanjing 210093 China Department of Physics Sichuan University Chengdu 610064 China

In this paper, using path integral techniques we derive a model-independent formula for the pressure density P（μ, T）（or equivalently the partition function） of Quantum Chromodynamics （QCD）, which gives the equation of state （EOS） of QCD at finite chemical potential and temperature. In this formula the pressure density P（μ, T） consists of two terms： the first term （p（μ, T）｜T=0） is a μ-independent （but T-dependent） constant; the second term is totally determined by G[μ, T]（p, ωn）（the dressed quark propagator at finite μ and finite T）, which contains all the nontrivial μ-dependence. Then, in the framework of the rainbow-ladder approximation of the Dyson-Schwinger （DS） approach and under the approximation of neglecting the μ-dependence of the dressed gluon propagator, we show that G[μ, T]（p,ωn） can be obtained from G[T]（p,ωn ）（the dressed quark propagator at μ= 0） by the substitution ωn →ωn ＋ iμ. This result facilitates numerical calculations considerably. By this result, once C [T] （p, ωn） is known, one can determine the EOS of QCD under the above approximations （up to the additive term p（μ, T）｜T=0）. Finally, a comparison of the present EOS of QCD and the EOS obtained in the previous literatures in the framework of the rainbow-ladder approximation of the DS approach is given. It is found that the EOS given in the previous literatures does not satisfy the thermodynamic relation ρ（μ,T） =δp（μ,T）/δμ｜T.

关键词： EOS of QCD at finitechemical potential-and temperature phase transition

Universal design of three-dimensional porous graphene-iron based promotors for kinetically rationalized lithium-sulfur chemistry

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Journal of Energy Chemistry 2025年第1期100卷 192-200页

作者： Hua Gao Yunfeng Zhang Menglei Wang Ruoxuan Yang Shuai Feng Xuan Cao Yaping Zhang Zhongyuan lu Yingze Song State Key Laboratory of Environment-Friendly Energy Materials School of Materials and Chemistry Southwest University of Science and Technology School of Material Science and Engineering Henan University of Technology College of Chemistry and Chemical Engineering Taishan University

Lithium-sulfur （Li-S） batteries are widely deemed to be one of the most potential candidates for future secondary batteries because of their remarkable energy ***,notorious polysulfide shuttling and retarded sulfur reaction kinetics pose significant obstacles to the further application of Li-S *** rationally designed highly active electrocatalysts can facilitate polysulfide conversion,the universal and scalable synthesis strategies need to be ***,a universal synthetic strategy to construct a series of three-dimensional （3D） porous graphene-iron （3DGr-Fe） based electrocatalysts involving 3DGr-FeP,3DGr-Fe3C,and 3DGr-Fe3Se4is exploited for manipulating the Li-S redox *** has been observed that the implementation of a 3D porous Gr architecture leads to the well-designed conductive networks,while the uniformly dispersed iron nanoparticles introduce an abundance of active sites,fostering the lithium polysulfide conversion,thereby bolstering the overall electrochemical *** Li-S battery with the 3DGr-Fe based electrocatalyst exhibits remarkable capacity retention of 94.8%upon 100 times at 0.2 ***,the soft-packaged Li-S pouch cell based on such a 3DGr-Fe electrocatalyst delivers superior capacity of 1060.71 mA h g-1and guarantees for the continuous 30 min work of fan *** investigation gives comprehensive insights into the design,synthesis,and mechanism of 3DGr-Fe based electrocatalysts with high activity toward efficient and durable Li-S batteries.

关键词： Redox reactions

Circulating miR-214 is associated with the severity of coronary artery disease

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Journal of Geriatric Cardiology 2013年第1期10卷 34-38页

作者： Hong-Quan lu Chun Liang Zhi-Qing He min Fan zong-Gui Wu Department of Cardiology Changzheng Hospital the Second Military Medical University Shanghai 200003 China

Objective To study whether miR-214 is regulated in coronary artery disease (CAD) patients and whether placental growth factor (PLGF) is a possible target for miR-214 in atherosclerosis. Methods Circulating miR-214 was measured by quantitative PCR using RNA isolated from 40 patients with CAD, including 12with stable angina pectoris, 16 with unstable angina pectoris and 12 with acute myocardial infarction, and 15 controls without CAD. Plasma level of PLGF was measured by ELISA. Results The miR-214 level was significantly lower inCADpatients compared with that in controls (P lusions The results suggest thatmiR-214 is a beneficial microRNAfor CAD patients. Loss of its protectionmay lead to increased PLGF levels andworsening atherosclerosis. Circulating miR-214 is a promising biomarker for alerting severe CAD.

关键词： Atherosclerosis Coronary artery disease Placental growth factor miR-214

Evaluation of selenium and carotenoid concentrations of 200 foxtail millet accessions from China and their correlations with agronomic performance

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Journal of Integrative Agriculture 2016年第7期15卷 1449-1457页

作者： LIU min-xuan ZHANG zong-wen REN Gui-xing ZHANG Qi WANG Yin-yue lu Ping Institute of Crop Science Chinese Academy of Agricultural Sciences Faculty of Life Science Jilin Agricultural University

As selenium and carotenoids are essential micronutrients, the determination of their concentrations in different varieties is important in the breeding of foxtail milet （Setaria italicaL. ***.）. To identify selenium- and carotenoid-enriched foxtail milet varieties and to analyze correlations between trace elements and agronomic traits, we measured the selenium and carotenoid concentrations of 200 Chinese accessions by high-performance liquid chromatography and atomic lfuorescence spectrometry. Our analysis revealed that lutein concentration in 200 foxtail milet accessions folowed normal distribution and average was 3.1 μg g–1. The mean value of zeaxanthin concentration in 200 accessions was 8.6 μg g–1. lutein and zeaxanthin concentrations were higher in the foxtail milet from Liaoning than in varieties from other locations, with averages of 10.0 and 3.5 μg g–1, respectively. The average measured selenium concentration was 100.3 μg kg–1. The highest average selenium concentration, 110.3 μg kg–1, was found in varieties from Shanxi. Varieties from Inner Mongolia had the lowest average selenium concentration, 84.7 μg kg–1, which was signiifcantly lower （P〈0.05） than that of Shanxi. Selenium con-centrations of 23 varieties were higher than 117.9 μg kg–1, accounting for 11.5% of the total, thereby were considered to be enriched in selenium. In addition, we identiifed 29 lutein-enriched varieties （〉4.27 μg g–1） and 30 zeaxanthin-enriched ones （〉12.63 μg g–1）, which corresponded to 14.5 and 15% of tested accessions, respectively. Correlation analysis revealed that selenium concentration was signiifcantly positively correlated with spikelet length （P〈0.01）, while zeaxanthin concentration was signiifcantly correlated with grass weight （P〈0.05） and spikelet length （P〈0.01）. No correlation was found between lutein concentration and agronomic characters, selenium content or zeaxanthin content. Our results should contribute substantialy to the selection of suitable varieties

关键词： foxtail milet varieties selenium carotenoids HPLC correlation analysis

Oxidative DNA damage in peripheral leukocytes and its association with expression and polymorphisms of hOGG_1:A study of adolescents in a high risk region for hepatocellular carcinoma in China

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World Journal of Gastroenterology 2003年第10期9卷 2186-2193页

作者： TaoPeng Han-mingShen Zhi-mingLiu lu-NanYan min-HaoPeng Le-QunLi Ren-XiangLiang zong-LiangWei BarryHalliwell ChoonNamOng DepartmentofHepatobiliarySugery FirstAffiliatedHospitalofGuangxiMedicalUniversityNanning530021GuangxiZhuangAutonomousRegionChina DepartmentofCommunity OccupationalandFamilyMedicineNationalUniversityofSingaporeSingapore DepartmentofGeneralSurgery FirstAffiliatedHospitalofWestChinaUniversityofMedicalSciencesChengdu610041SichuanZhuangAutonomousRegionChina FusuiCancerResearchInstitute FusuiCounty532100GuangxiProvinceChina DepartmentofBiochemistry NationalUniversityofSingaporeSingapore

AIM: To study the oxidative DNA damage to adolescents of hepatocellular carcinoma (HCC) families in Guangxi Zhuang Autonomous Region, ***: Peripheral leukocytes' DNA 7, 8-dihydro-8-oxoguanine (8-oxoG) and repair enzyme hOGG1 were quantified by flow-cytometry. hOGG1-Cys326Ser single nucleotide polymorphism (SNP) was distinguished by polymerase chain reaction-single strand conformational polymorphism (PCR-SSCP) ***: There was a positive correlation between 8-oxoG and repair enzyme hOGG1 expression (P＜0.001). HCC children (n=21) in Fusui county had a higher level of hOGG1(P＜0.01) and a lower level of 8-oxoG (P＜0.05) than the controls (n=63) in Nanning city. Children in Nanning exposed to passive-smoking had a higher hOGG1 expression (P＜0.05)than the non-exposers. 8-oxoG and hOGG1 were negatively correlated with body mass index, while hOGG1 was positively correlated with age. There was a peak of 8-oxoG level nearby the 12 year point. Individuals with the hOGG1 326Ser allele had a significantly marginal higher concentration of leukocyte 8-oxoG level than hOGG1 326Cys ***: This is the first report using flow-cytometry to simultaneously quantify both the DNA oxidative damage and its repairing enzyme hOGG1. The results provide new insights towards a better understanding of the mechanisms of oxidative stress in a population highly susceptible to hepatocarcinogenesis.

关键词：外周血白血球 DNA氧化损伤基因多态性肝细胞癌青年人高危因素