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Oscillatory and Asymptotic Behavior of Solutions for Nonlinear Impulsive Delay Differential Equations

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Acta Mathematicae Applicatae Sinica 2006年第3期22卷 387-396页

作者： wei-hua mao An-hua Wan College of Science South China Agricultural University Guangzhou 510642 China Institute of Automation Chinese Academy of Sciences Beijing 100080 China

The oscillatory and asymptotic behavior of the solutions for third order nonlinear impulsive delay differential equations are investigated. Some novel criteria for all solutions to be oscillatory or be asymptotic are ... 详细信息

关键词： Impulse delay oscillation asymptotic property

On Generalized Vector Equilibrium Problems

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Acta Mathematicae Applicatae Sinica 2006年第1期22卷 21-26页

作者： An-hua Wan Jun-yi Fu wei-hua mao Department of Applied Mathematics South China Agricultural University Guangzhou 510642 China Department of Mathematics Nanchang University NaIlchang 330047 China

A new generalized vector equilibrium problem involving set-valued mappings and the proper quasi concavity of set-valued mappings in topological vector spaces are introduced; its existence theorems and the convexity of... 详细信息

关键词： Vector equilibrium problem set-valued mapping topological vector space KKM theorem

Determination of the genetic diversity of vegetable soybean [Glycine max(L.) Merr.] using EST-SSR markers

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2013年第4期14卷 279-288页

作者： Gu-wen ZHANG Sheng-chun XU wei-hua mao Qi-zan HU Ya-ming GONG Institute of Vegetable Research Zhejiang Academy of Agricultural Sciences Center of Analysis and Measurement Zhejiang University

The development of expressed sequence tag-derived simple sequence repeats(EST-SSRs) provided a useful tool for investigating plant genetic *** the present study,22 polymorphic EST-SSRs from grain soybean were identified and used to assess the genetic diversity in 48 vegetable soybean *** the 22 EST-SSR loci,tri-nucleotides were the most abundant repeats,accounting for 50.00% of the total *** was the most common motif among tri-nucleotide repeats,with a frequency of 18.18%.Polymorphic analysis identified a total of 71 alleles,with an average of 3.23 per *** polymorphism information content(PIC) values ranged from 0.144 to 0.630,with a mean of *** heterozygosity(H o) values varied from 0.0196 to 1.0000,with an average of 0.6092,while the expected heterozygosity(H e) values ranged from 0.1502 to 0.6840,with a mean value of *** coordinate analysis and phylogenetic tree analysis indicated that the accessions could be assigned to different groups based to a large extent on their geographic distribution,and most accessions from China were clustered into the same *** results suggest that Chinese vegetable soybean accessions have a narrow genetic *** results of this study indicate that EST-SSRs from grain soybean have high transferability to vegetable soybean,and that these new markers would be helpful in taxonomy,molecular breeding,and comparative mapping studies of vegetable soybean in the future.

关键词： Expressed sequence tag(EST) Simple sequence repeat(SSR) Genetic diversity Microsatellites Vegetable soybean

Delayed-onset adenosine deaminase deficiency with a novel synonymous mutation and a case series from China

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World Journal of Pediatrics 2023年第7期19卷 687-700页

作者： Yue Zhang wei Liu Zhou Shu Yan Li Fei Sun Zhi-Gang Li Tong-Xin Han hua-wei mao Tian-You Wang Department of Immunology Beijing Children's HospitalCapital Medical UniversityNational Center for Children's HealthNo.56 Nan Lishi RoadXicheng DistrictBeijing 100045China Hematology Oncology Center Henan Children's HospitalChildren's Hospital Affiliated of Zhengzhou UniversityZhengzhou Children's HospitalZhengzhouChina Hematologic Disease Laboratory Beijing Pediatric Research InstituteBeijing Children's HospitalCapital Medical UniversityNational Center for Children's HealthBeijingChina Hematology Center Beijing Children's HospitalCapital Medical UniversityNational Center for Children's HealthNo.56 Nan Lishi RoadXicheng DistrictBeijing 100045China Beijing Key Laboratory of Pediatric Hematology Oncology National Key Discipline of PediatricsCapital Medical UniversityBeijingChina Key Laboratory of Major Diseases in Children Ministry of EducationBeijingChina

Background Adenosine deaminase(ADA)is a key enzyme in the purine salvage *** defects of the ADA gene can cause a subtype of severe combined *** date,few Chinese cases have been *** We retrospectively reviewed the medical records of patients diagnosed with ADA deficiency in Beijing Children's Hospital and summarized the previously published ADA deficiency cases from China in the *** Nine patients were identified with two novel mutations(W272X and Q202=).Early-onset infection,thymic abnor-malities and failure to thrive were the most common manifestations of Chinese ADA-deficient *** ADA genotype has a major effect on the clinical ***,a novel synonymous mutation(c.606G>A,p.Q202=)was identified in a delayed-onset patient,which affected pre-mRNA splicing leading to a frameshift and premature truncation of the ***,the patient showed γδT cells expansion with an increased effect or phenotype,which may be associated with the delayed onset of *** addition,we reported cerebral aneurysm and intracranial artery stenosis for the first time in ADA *** patients died with a median age of four months,while two patients received stem cell transplantation and are *** This study described the first case series of Chinese ADA-deficient ***-onset infection,thymic abnormalities and failure to thrive were the most common manifestations in our *** identified a synonymous muta-tion that affected pre-mRNA splicing in the ADA gene,which had never been reported in ADA ***,we reported cerebral aneurysm in a delayed-onset patient for the first *** study is warranted to investigate the underlying mechanisms.

关键词： Adenosine deaminase deficiency Cerebral aneurysm Gamma delta Severe combined immunodeficiency Synonymous mutation

Developing new SSR markers from ESTs of pea(Pisum sativum L.)

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2010年第9期11卷 702-707页

作者： Ya-ming GONG Sheng-chun XU wei-hua mao Qi-zan HU Gu-wen ZHANG Ju DING Ya-dan LI Institute of Vegetables Zhejiang Academy of Agricultural Science Hangzhou 310021 China Center of Analysis and Measurement Zhejiang University Hangzhou 310029 China

The development of expressed sequence tags(ESTs) from pea has provided a useful source for mining novel simple sequence repeat(SSR) *** the present research,in order to find EST-derived SSR markers,18 552 pea ESTs from the National Center for Biotechnology Information(NCBI) database were downloaded and assembled into 10 086 unigenes.A total of 586 microsatellites in 530 unigenes were identified,indicating that merely 5.25% of sequences contained *** most abundant SSRs within pea were tri-nucleotide repeat motifs,and among all the tri-nucleotide repeats,the motif GAA was the most abundant *** total,49 SSRs were used for primer ***-SSR loci were subsequently screened on 10 widely adapted varieties in *** these,nine loci showed polymorphic profiles that revealed two to three alleles per *** polymorphism information content value ranged from 0.18 to 0.58 with an average of ***,transferable analysis revealed that some of these loci showed transferability to faba *** of their polymorphism and transferability,these nine novel EST-SSRs will be valuable tools for marker-assisted breeding and comparative mapping of pea in the future.

关键词： Pea Expressed sequence tag(EST) Simple sequence repeat(SSR) Microsatellite

Enhancing the electrocatalytic performance of nitrate reduction to ammonia by in-situ nitrogen leaching

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Chinese Chemical Letters 2024年第2期35卷 564-569页

作者： Mimi Fu Yini mao hua Wang wei Luo Yimin Jiang wei Shen Ming Li Rongxing He College of Chemistry and Chemical Engineering Southwest UniversityChongqing 400715China

Electrochemical nitrate reduction reaction (NITRR) is regarded as a “two birds-one stone” method for the treatment of nitrate contaminant in polluted water and the synthesis of valuable ammonia, which is retarded by the lack of highly reactive and selective electrocatalysts .Herein, for the first time, nickel foam supported Co_(4) N was designed as a high-performance NITRR catalyst by an in-situ nonmetal leaching-induced *** the optimal potential, the Co_(4) N/NF catalyst achieves ultra-high Faraday efficiency and NH_(3) selectivity of 95.4% and 99.4%, *** situ X-ray absorption spectroscopy (XAS), together with other experiments powerfully reveal that the nitrogen vacancies produced by nitrogen leaching are stable and play a key role in boosting nitrate reduction to *** calculations confirm that Co_(4) N with abundant nitrogen vacancies can optimize the adsorption energies of NO_(3)^(-) and intermediates, lower the free energy (Δ G ) of the potential-determining step (*NH_(3) to NH_(3) ) and inhibit the formation of N-containing *** addition, we also conclude that the nitrogen vacancies can stabilize the adsorbed hydrogen, making H_(2) quite difficult to produce, and lowering ΔG from *NO to *NOH, which facilitates the selective reduction of *** study reveals significant insights about the in-situ nonmetal leaching to enhance the NITRR activity.

关键词： Co4N Nitrate reduction In-situ nonmetal leaching Nitrogen vacancy Mechanism

Hydrogen peroxide functions as a secondary messenger for brassinosteroids-induced CO_2 assimilation and carbohydrate metabolism in Cucumis sativus

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2012年第10期13卷 811-823页

作者： Yu-ping JIANG Fei CHENG Yan-hong ZHOU Xiao-jian XIA wei-hua mao Kai SHI Zhi-xiang CHEN Jing-quan YU Department of Horticulture College of Agriculture and BiotechnologyZhejiang UniversityHangzhou 310058China Key Laboratory of Horticultural Plants Growth Development and Quality ImprovementMinistry of AgricultureHangzhou 310058China Department of Botany and Plant Pathology Purdue UniversityWest Lafayette 47907-2054USA

Brassinosteroids(BRs) are potent regulators of photosynthesis and crop yield in agricultural crops;however,the mechanism by which BRs increase photosynthesis is not fully ***,we show that foliar application of 24-epibrassinolide(EBR) resulted in increases in CO 2 assimilation,hydrogen peroxide(H 2 O 2) accumulation,and leaf area in cucumber.H 2 O 2 treatment induced increases in CO 2 assimilation whilst inhibition of the H 2 O 2 accumulation by its generation inhibitor or scavenger completely abolished EBR-induced CO 2 *** of light harvesting due to larger leaf areas in EBR-and H 2 O 2-treated plants were accompanied by increases in the photochemical efficiency of photosystem II(Φ PSII) and photochemical quenching coefficient(q P).EBR and H 2 O 2 both activated carboxylation efficiency of ribulose-1,5-bisphosphate oxygenase/carboxylase(Rubisco) from analysis of CO 2 response curve and in vitro measurement of Rubisco ***,EBR and H 2 O 2 increased contents of total soluble sugar,sucrose,hexose,and starch,followed by enhanced activities of sugar metabolism such as sucrose phosphate synthase,sucrose synthase,and ***,expression of transcripts of enzymes involved in starch and sugar utilization were inhibited by EBR and H 2 O ***,the effects of EBR on carbohydrate metabolisms were reversed by the H 2 O 2 generation inhibitor diphenyleneodonium(DPI) or scavenger dimethylthiourea(DMTU) *** of these results indicate that H 2 O 2 functions as a secondary messenger for EBR-induced CO 2 assimilation and carbohydrate metabolism in cucumber *** study confirms that H 2 O 2 mediates the regulation of photosynthesis by BRs and suggests that EBR and H 2 O 2 regulate Calvin cycle and sugar metabolism via redox signaling and thus increase the photosynthetic potential and yield of crops.

关键词： Metabolism Photosynthesis Reactive oxygen species Rubisco Sucrose

Recursive filtering of multi-rate cyber-physical systems with unknown inputs under adaptive event-triggered mechanisms

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Frontiers of Information Technology & Electronic Engineering 2024年第2期25卷 250-259页

作者： Ying SUN Miaomiao FU Jingyang mao Guoliang wei Business School University of Shanghai for Science and TechnologyShanghai200093China Shanghai Caoyang Vocational School Shanghai200333China School of Electrical and Electronic Engineering Shanghai Institute of TechnologyShanghai201418China School of Intelligent Emergency Management University of Shanghai for Science and TechnologyShanghai200093China

Cyber-physical systems(CPSs)take on the characteristics of both multiple rates of information collection and processing and the dependency on information *** purpose of this paper is to develop a joint recursive filtering scheme that estimates both unknown inputs and system states for multi-rate CPSs with unknown *** cyberspace,the information transmission between the local joint filter and the sensors is governed by an adaptive event-triggered ***,the desired parameters of joint filters are determined by a set of algebraic matrix equations in a recursive way,and a sufficient condition verifying the boundedness of filtering error covariance is found by resorting to some algebraic operation.A state fusion estimation scheme that uses local state estimation is proposed based on the covariance intersection(CI)based fusion ***,an illustrative example demonstrates the effectiveness of the proposed adaptive event-triggered recursive filtering algorithm.

关键词： Cyber-physical systems Multi-rate Joint recursive filtering Adaptive event-triggered mechanisms Unknown inputs

Development of 107 SSR markers from whole genome shotgun sequences of Chinese bayberry(Myrica rubra) and their application in seedling identification

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2014年第11期15卷 997-1005,1-5页

作者： Hui-min JIA Yu-tong SHEN Yun JIAO Guo-yun WANG Xiao DONG Hui-juan JIA Fang DU Sen-miao LIANG Chao-chao ZHOU wei-hua mao Zhong-shan GAO Department of Horticulture Zhejiang University Fruit Research Institute Yuyao Institute of Horticulture Zhejiang Academy of Agricultural Sciences Yuyao Agricultural and Forestry Bureau Bio-Macromolecules Analysis Lab Analysis Center of Agrobiology and Environmental SciencesZhejiang University

Chinese bayberry （Myrica rubra Sieb. et Zucc.） is one of the important subtropical fruit crops native to the South of China and Asian countries. In this study, 107 novel simple sequence repeat （SSR） molecular markers, a powerful tool for genetic diversity studies, cultivar identification, and linkage map construction, were developed and characterized from whole genome shotgun sequences. M13 tailing for forward primers was applied as a simple method in different situations. In total, 828 alleles across 45 accessions were detected, with an average of 8 alleles per locus. The number of effective alleles ranged from 1.22 to 10.41 with an average of 4.08. The polymorphic information content （PIC） varied from 0.13 to 0.89, with an average of 0.63. Moreover, these markers could also be amplified in their related species Myrica cerifera （syn. More/la cerifera） and Myrica adenophora. Seventy-eight SSR markers can be used to produce a genetic map of a cross between ＇Biqi＇ and ＇Dongkui＇. A neighbor-joining （N J） tree was con- structed to assess the genetic relationships among accessions, and the elite accessions ＇Y2010-70＇, ＇Y2012-140＇, and ＇Y2012-145＇, were characterized as potential new genotypes for cultivation.

关键词： Chinese bayberry Simple sequence repeat (SSR) Genetic diversity