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A Co(Ⅱ) Coordination Polymer: Crystal Structure and Treatment Effect on Anxiety and Insomnia by Reducing Sympathetic Excitability

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Chinese Journal of Structural Chemistry 2020年第8期39卷 1509-1514,1361页

作者： li dong-mei GUO Juan School of Psychology Northeast Normal UniversityChangchun 130024China

A new coordination polymer,[Co2(L)2(H2O)2]n·H2O(1,H2L?=?5-(1H-1,2,4-triazol-1-yl)-1,3-benzenedicarboxylic acid),was constructed by hydrothermal condition reaction of Co(NO3)2·6H2O and H2L at the pH value of *** as-prepared complex 1 was characterized by elemental analysis,IR and single-crystal X-ray ***,a green hand grinding technique has been implemented to reduce the particle size of complex 1 to generate nanoscale 1(denoted as nano 1 hereafter)with spherical ***,the treatment of the compound on anxiety and insomnia was ***,the EliSA was used to detect the content of serotonin,gamma-aminobutyric acid in the ***,the Rat sleep phase detection was determined by pentobarbital synergistic sleep experiment.

关键词： Co(Ⅱ)-complex 3D framework nanoparticles anxiety and insomnia

W-Grbner basis and monomial ideals under polynomial composition

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Applied Mathematics(A Journal of Chinese Universities) 2011年第3期26卷 287-294页

作者： li dong-mei liU Jin-wang liU Wei-jun School of Mathematical Sciences and Computing Technology Central South University Changsha410075 China School of Mathematics and Computing Sciences Hunan University of Science and Technology Xiangtan 411201 China

The notion of weakly relatively prime and W-Gr6bner basis in K[x1, x2,…, xn] are given. The following results are obtained： for polynomials fl, f2, ..., fm, {f1^λ1, f2^λ2,…, fm^λm} is a GrSbner basis if and only if f1, f2, …, fm are pairwise weakly relatively prime with λ1, λ2, …, λm arbitrary non-negative integers; polynomial composition by θ = （θ1,θ2, …, θn） commutes with monomial-Grobner bases computation if and only if θ1, θ2, , θm are pairwise weakly relatively prime.

关键词： W-Grobner basis weakly relatively prime polynomial composition.

Preparation and Microstructure of Nanosized GaN Crystals

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Chinese Physics Letters 1996年第6期13卷 444-446页

作者： YU San li Hong-dong YANG Hai-bin li dong-mei SUN Hai-ping ZOU Guang-tian National Laboratory of Superhard Materials Jilin UniversityChangchun 130023

Gallium nitride crystals in nano-scale have been fabricated by dc arc plasma method using gallium and N_(2)+NH_(3) as starting *** electron microscope,selected area diffraction and x-ray diffraction investigation of the as-grown GaN crystals show that the well faceted crystals are single crystalline GaN in wurtzite structure having lattice constants a_(0)=3.18Åand c_(0)=5.18Å.

关键词： materials. GaN Crystal

Respiratory Response of Dormant Nectarine Vegetative Buds to High Temperature Stress

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Journal of Integrative Agriculture 2013年第1期12卷 80-86页

作者： TAN Yue li ling LENG Chuan-yuan li dong-mei CHEN Xiu-de GAO dong-sheng National Research Center for Apple Engineering and Technology/State Key Laboratory of Crop Biology/College of Horticulture Science and Engineering Shandong Agricultural University

High temperature stress （HT） is efficient in breaking endo-dormancy of perennial trees. The effects of HT （50°C） on the respiration of dormant nectarine （Prunus persica var. nectariana cv. Shuguang） vegetative buds were evaluated in the research. We found that bud respiration was transiently inhibited by HT and the pentose phosphate pathway （PPP） and the cytochrome C pathway （CYT） were significantly affected. On the substrate level, PPP was activated in the HT-treated buds compared with the control group. However, the activation did mot occur until hours after HT treatment. The tricarboxylic acid cycle （TCA） in both the HT-treated buds and in the control group proceeded at a low level most of the time compared with total respiration. On the electron transfer level, CYT was transiently inhibited by HT but became significantly active in the later stage. CYT operation in the control group exhibited an attenuation process. The alternative pathway （ALT） fluctuated both in the HT-treated samples and in the control. The results suggest that the temporary CYT inhibition and the following PPP activation may be involved in HT-induced bud dormancy release and budburst mechanisms.

关键词： high temperature stress dormancy release respiration nectarine vegetative buds

HIGH ORDER LAGRANGIAN VELOCITY STATISTICS IN A TURBULENT CHANNEL FLOW WITH Re_τ=80

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Journal of Hydrodynamics 2012年第2期24卷 287-291页

作者： LUO Jian-ping QIU Xiang li dong-mei liU Yu-lu School of Mechanical Engineering Shanghai Institute of Technology Shanghai 200235 China School of Science Shanghai Institute of Technology Shanghai 200235 China Shanghai Institute of Technology Shanghai 200235 China

The scaling properties of high-order Lagrangian velocity structure functions are investigated numerically for a turbulent flow with a friction-velocity based Reynolds number Re_τ=*** Lagrangian particles are released from locations of different distances to the *** relative scaling exponents of the longitudinal velocity component are found to increase with the released distance to the wall and to approach asymptotically to theoretical ***,the scaling exponents of the transverse velocity component are smaller than ,indicating a more intermittent *** for the release locations in the center region,the relative scaling exponents agree very well with theoretical predictions.

关键词： Lagrangian scaling exponents intermittency turbulent channel flow

Effect of Photoperiod on Key Enzyme Activities of Respiration in Nectarine Buds During Dormancy Induction

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Agricultural Sciences in China 2011年第7期10卷 1026-1031页

作者： li dong-mei li ling TAN Yue CHEN Xiu-de ZHANG Hai-sen GAO dong-sheng li Jin State Key Laboratory of Crop Biology/College of Horticulture Science and Engineering/Research Center for Apple Engineering and Technology Shandong Agricultural University Tai＇an 271018 P.R.China State Key Laboratory of Crop Biology/College of life Sciences Shandong Agricultural University Tai＇an 271018 P.R.China

Shuguang （Prunus persica var. nectariana cv. Shuguang） nectarine was used to study effects of photoperiod on key-enzyme activities of respiration during dormancy induction. The dormancy status was determined with sprouting ability. Spectrophotometry was used to investigate activities of phosphohexose isomerase （PGI）, malic dehydrogenase （MDH）, and glucose-6-phosphate dehydrogenase （G6PDH）. The results revealed that short day （SD） treatment promoted dormancy induction while long day （LD） treatment postponed the process. During dormancy induction, PGI activities declined, MDH activities changed little, and G6PDH activities increased both in flower buds and leaf buds. PGI activities and MDH activities in SD treatment were lower than control, and G6PDH activities were higher, which was opposite with LD treatment. The changes of respiratory key-enzyme activities were adjusted by photoperiod and correlated with the development of dormancy induction.

关键词： photoperiod nectarine buds dormancy induction PGI MDA G6PDH

Effects of Photoperiod on Alternative Respiration Pathway in Nectarine Flower Buds During Dormancy Induction

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Agricultural Sciences in China 2011年第12期10卷 1881-1886页

作者： li dong-mei TAN Yue YU Qin CHEN Xiu-de li ling ZHANG Hai-sen GAO dong-sheng State Key Laboratory of Crop Biology/College of Horticulture Science and Engineering/Research Center for Apple Engineering and Technology Shandong Agricultural University Tai ＇an 271018 P.R.China State Key Laboratory of Crop Biology/College of life Sciences Shandong Agricultural University Tai ＇an 271018 P.R. China

Characteristics of dormancy induction and alternative respiration pathway （also known as cyanide-resistant respiration） of nectarine flower buds in different photoperiods were studied to determine the function of photoperiod and alternative respiration pathway in dormancy induction. Oxygen-electrode system and respiratory inhibitors were used to measure total respiratory rates and rates of alternative respiration pathway. The results showed that total respiration rate （Vt） in flower buds showed to be double hump-shaped curves. Short day raised, brought the first-hump of Vt forward and delayed the second-hump, while long day delayed the whole curve. The capacity （Vast） and activity （pValt） of SD and LD changed synchronously and both showed to be double hump-shaped curves. Short day made the first climax of Vast and pValt existed much earlier, while long day increased their rates significantly. The length of day had little effects on the later period climax. Long day also increased the contributions of altemative respiration pathway in total respiration rate （pValt/Vt）. The changes in alternative respiration pathway were correlated with the induction of dormancy and adjusted by photoperiod. Short day promoted dormancy induction of nectarine trees, while long day delayed it.

关键词： photoperiod nectarine flower buds dormancy induction alternative respiration pathway

EFFECT OF SWEEP AND EJECTION EVENTS ON PARTICLE DISPERSION IN WALL BOUNDED TURBULENT FLOWS

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Journal of Hydrodynamics 2012年第5期24卷 794-799页

作者： LUO Jian-ping LU Zhi-ming QIU Xiang li dong-mei liU Yu-lu School of Mechanical Engineering Shanghai Institute of Technology Shanghai 200235 China Shanghai Key Laboratory of Mechanics in Energy Engineering and Shanghai Institute of Applied Mathematicsand Mechanics Shanghai University Shanghai 200072 China School of Science Shanghai Institute of Technology Shanghai 200235 China Shanghai Institute of Technology Shanghai 200235 China

This paper studies the sweep and ejection events in a channel flow with Reτ = 80 by using Direct Numerical Simulation （DNS）. The effects of ejection and sweep events on the transport of fluid particles are analyzed separately through a quadrant technique. By analyzing trajectories of the particles released at different wall-normal locations, it is found that the particles from the ejection events mainly move upward while the particles from the sweep events move downward of the flow during short and intermediate diffusion time durations. Numerical results show that the effects of the ejection and sweep events on the mean displacement and the mean square dispersion remain for a long time, one-order of magnitude larger than the streamwise Lagrangian integral ~cales.

关键词： sweep ejection dispersion quadrant analysis turbulent channel flow

Analysis of the Germplasm Resources and Genetic Relationships Among Hybrid Cymbidium Cultivars and Native Species with RAPD Markers

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Agricultural Sciences in China 2007年第8期6卷 922-929页

作者： li dong-mei YE Qing-sheng ZHU Gen-fa Floricultural Research Institute Guangdong Academy of Agricultural Sciences Guangzhou 510640 P.R.China Guangdong Key Lab of Biotechnology for Plant Development College of Life Science South China Normal University Guangzhou 510631 P.R.China

The random amplified polymorphic DNA （RAPD） marker was assessed to detect the genetic relationships among 48 hybrid Cymbidium cultivars from Japan, Korea, China, and USA, and 2 species of native Cymbidium. Twenty primers were screened from 100 random decamer primers, and a total of 258 DNA bands were amplified, 253 of which （98.1%） were polymorphic. The average number of polymorphic DNA bands amplified by each primer was 12.6. All cultivars were distinguishable when a number of primers were considered. Genetic similarities among the cultivars and species were estimated based on the amount of band sharing ranging from 0.364-0.817 with an average of 0.581. According to the data, a dendrogram of genetic relationship, which was constructed using the UPGMA method, showed that all the tested cultivars and native species were classified into five cluster groups with the similarity coefficient of 0.592. It revealed that the genetic relationships among tested accessions were to some extent related with their origin, flower colour, branch type, and genealogy. It further indicated that the RAPD technique is a useful tool for studying the genetic relationships among hybrid Cymbidium cultivars.

关键词： Cymbidium genetic relationship RAPD markers cluster analysis