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A survey on delayed feedback control of chaos

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控制理论与应用（英文版） 2005年第4期3卷 311-319页

作者： yuping tian Jiandong ZHU Guanrong chen Department of Automatic Control Southeast University Nanjing Jiangsu 210096 China School of Mathematics and Computer Science Nanjing Normal University Nanjing Jiansu China Department of Electronic Engineering City University of Hong KongChina

This paper introduces the basic idea and provides the mathematical formulation of the delayed feedback control （DFC） methodology, which has been widely used in chaos control. Stability analysis including the well-known odd number linfitation of the DFC is reviewed. Some new developments in characterizing the limitation of the DFC are presented. Various modified DFC methods, which are developed in order to overcome the odd number limitation, are also described. Finally, some open problems in this research field are discussed.

关键词： Delayed feedback control Chaos control Stability Odd number limitation Stabilization

Role of the rhizosphere of a flooding-tolerant herb in promoting mercury methylation in water-level fluctuation zones

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Journal of Environmental Sciences 2022年第9期34卷 139-151页

作者： Juan Wang yuping Xiang Xiaosong tian cheng Zhang Guiqing Gong Jinping Xue Tao Jiang Dingyong Wang Yongmin Wang Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin College of Resources and EnvironmentSouthwest UniversityChongqing 400715China Laboratory of Environmental Nanotechnology&Health Effect Chinese Academy of SciencesResearch Center for Eco-Environmental SciencesBeijing 100085China College of Resources and Safety Chongqing Vocational Institute of EngineeringChongqing 402260China Institut des Sciences Analytiques et des Physico-Chimie pour l’Environnement et les Materiaux(IPREM) UMR 5254CNRSUniversitede Pau et des Pays de l’AdourPau 64000France

The water-level fluctuation zone(WLFZ) has been considered as a hotspot for mercury(Hg) methylation. Flooding-tolerant herbs are gradually acclimated to this water-land ecotone, tending to form substantial root systems for improving erosion resistance. Accompanying rhizosphere microzone plays crucial but unclear roles in methylmercury(Me Hg) formation in the WLFZ. Thus, we conducted this study in the WLFZ of the Three Gorges Reservoir, to explore effects of the rhizosphere of a dominant flooding-tolerant herb(bermudagrass) on Me Hg production. The elevated Hg and Me Hg in rhizosphere soils suggest that the rhizosphere environment provides favorable conditions for Hg accumulation and methylation. The increased bioavailable Hg and microbial activity in the rhizosphere probably serve as important factors driving Me Hg formation in the presence of bermudagrass. Simultaneously, the rhizosphere environments changed the richness, diversity, and distribution of hgc A-containing microorganisms. Here, a typical ironreducing bacterium( Geobacteraceae) has been screened, however, the majority of hgc A genes detected in rhizosphere, near-, and non-rhizosphere soils of the WLFZ were unclassified. Collectively, these results provide new insights into the elevated Me Hg production as related to microbial processes in the rhizosphere of perennial herbs in the WLFZ, with general implications for Hg cycling in other ecosystems with water-level fluctuations.

关键词： Three Gorges Reservoir Water-level fluctuation zone Rhizosphere soil Methylmercury Mercury methylator

Mesenteric lymph reperfusion may exacerbate brain injury in a rat model of superior mesenteric artery occlusion shock

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Neural Regeneration Research 2010年第9期5卷 683-689页

作者： Zigang Zhao Chunyu Niu Aimin Shang Jiaming tian Rui Han Chunhui Zhang yuping Zhang Jing Zhang Institution of Microcirculation Department of Pathophysiology Basic Medical College Hebei North University Zhangjiakou 075029 HebeiProvince China

BACKGROUND：The intestinal lymphatic pathway and intestinal ischemia/reperfusion are mainly involved in mesenteric lymph duct ligation or drainage; moreover,intervention by reducing the lymph liquid reflux might relieve lung and other organ dysfunction induced by intestinal ischemia/reperfusion; however,research addressing mesenteric lymph reperfusion （MLR） and brain injury has not yet to be ***：To observe the effect of MLR on brain tissue in a rat model of superior mesenteric artery occlusion （SMAO） shock,and to explore the molecular mechanism of ***,TIME AND SETTING：A randomized,controlled,animal experiment at a neuro-pathophysiology level was performed at the Institute of Microcirculation,Hebei North University; Department of Pathophysiology,Basic Medical College; Department of Pathology,the First Hospital of Hebei North University between December 2007 and March ***：Adenosine triphosphate （ATP） standard was provided by the National Institute for the Control of Pharmaceutical and Biological Products; lactic acid （LA）,superoxide dismutase （SOD）,malonaldehyde （MDA）,nitrogen monoxidum （NO）,nitric oxide synthase （NOS）,myeloperoxidase （MPO） and ATPase assay kits were provided by Nanjing Jiancheng Bioengineering Institute,***：A total of 24 male Wistar rats were randomly divided into four *** the sham-surgery group （n = 6）,both the mesenteric lymph duct and the superior mesenteric artery were not blocked; in the MLR group （n = 6）,the mesenteric lymph duct was occluded for 1 hour followed by 2-hour reperfusion; in the SMAO group （n = 6）,the superior mesenteric artery was occluded for 1 hour followed by 2-hour reperfusion; in the MLR ＋ SMAO group （n = 6）,both the mesenteric lymph duct and superior mesenteric artery were occluded for 1 hour followed by 2-hour *** OUTCOME MEASURES：Mean arterial blood pressure prior to and following ischemia/reperfusion; brain tissue morphology levels of LA,MDA,SOD,NO,NOS,MPO,ATPas

关键词： mesenteric lymph reperfusion shock superior mesenteric artery occlusion brain injury neural regeneration

The complete mitochondrial genome of the hybrid grouper Epinephelus moara(♀)×Epinephelus tukula(♂), and phylogenetic analysis in subfamily Epinephelinae

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Acta Oceanologica Sinica 2020年第12期39卷 65-75页

作者： Zhentong Li Yongsheng tian Meiling cheng Linna Wang Jingjing Zhang yuping Wu Zunfang Pang Wenhui Ma Jieming Zhai College of Fisheries and Life Science Shanghai Ocean UniversityShanghai 201306China Laboratory for Marine Fisheries Science and Food Production Processes Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266071China Yellow Sea Fisheries Research Institute Chinese Academy of Fishery SciencesQingdao 266071China College of Fisheries and Life Science Dalian Ocean UniversityDalian 116023China Laizhou Mingbo Aquatic Co.Ltd. Laizhou 261400China

The mitochondrial genome(mitogenome)of hybrid grouper Epinephelus moara(♀)×Epinephelus tukula(♂),a new hybrid progeny,can provide valuable information for analyzing phylogeny and molecular *** this study,the mitogenome was analyzed using PCR amplification and sequenced,then the phylogenetic relationship of ***(♀)×***(♂)and 35 other species were constructed using Maximum Likelihood and NeighborJoining methods with the nucleotide sequences of 13 conserved protein-coding genes(PCGs).The complete mitogenome of ***(♀)×***(♂)was 16695 bp in length,which contained 13 PCGs,2 rRNA genes,22 tRNA genes,a replication origin and a control *** composition and order of these genes were consistent with most other *** the 13 PCGs,12 PCGs were encoded on the heavy strand,and ND6 was encoded on the light *** mitogenome of the ***(♀)×***(♂)had a higher AT nucleotide content,a positive AT-skew and a negative *** protein initiation codons were ATG,except for COX and ND4(GTG),ATP6(CTG),and ND3(ATA).ND2,COXII,ND3,ND4 and Cytb had T as the terminating codon,COXIII’s termination codon was TA,and the remaining PCGs of that were *** tRNA genes,except for the lacking DHU-arm of tRNASer(AGN),were predicted to form a typical cloverleaf secondary *** addition,sequence similarity analysis(99%identity)and phylogenetic analysis(100%bootstrap value)indicated that the mitochondrial genome was maternally *** study provides mitogenome data for studying genetic,phylogenetic relationships and breeding of grouper.

关键词： Epinephelus moara(♀)×Epinephelus tukula(♂) Epinephelus moara Epinephelus tukula mitochondrial genome phylogeny

Influence of mesenteric lymph reperfusion on neurotransmitter expression in brain tissue of a superior mesenteric artery occlusion shock rat model

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Neural Regeneration Research 2010年第11期5卷 859-863页

作者： Chunyu Niu Zigang Zhao Aimin Shang Jiaming tian Chunhui Zhang Rui Han yuping Zhang Jing Zhang Institution of Microcirculation Hebei North University Zhangjiakou 075029 Hebei Province China

BACKGROUND： Previous studies have shown that mesenteric lymph reperfusion （MLR） exacerbates brain injury in a rat model of superior mesenteric artery occlusion （SMAO） shock. However, little is known about the influence of MLR on neurotransmitter expression in brain tissue. OBJECTIVE： To observe the effect of MLR on brain tissue injury by measuring monoamine and cholinergic neurotransmitter levels. DESIGN, TIME AND SETTING： A randomized, controlled, animal experiment was performed at the Institute of Microcirculation, Hebei North University, China; Research Room of Microcirculation and Laboratory of Biochemistry, Department of Pathophysiology, Basic Medical College, Hebei North University between December 2007 and March 2009. MATERIALS： Choline acetyltransferase （CHAT） and acetylcholine esterase （ACHE） kits were provided by Nanjing Jiancheng Bioengineering Institute, China; dopamine （DA） and noradrenalin （NE） standards were provided by the National Institute for the Control of Pharmaceutical and Biological Products; HP1100 chromatograph of liquid was provided by Agllent, USA. METHODS： A total of 24 male, Wistar rats were randomly assigned to 4 groups： sham-surgery, MLR SMAO, and MLR ＋ SMAO groups, with 6 rats in each group. In the MLR or SMAO groups, the mesenteric lymph duct or superior mesenteric artery was blocked for 1 hour. In the MLR ＋ SMAO group, the mesenteric lymph duct and superior mesenteric artery were occluded for 1 hour, followed by 2-hour repeffusion. ChAT and AChE levels were measured using the synthesized and hydrolyzed acetylcholine method, respectively. Liquid chromatography was employed to quantitatively analyze DA and NE levels, using relative retention time and the external standard method. MAIN OUTCOME MEASURES： CHAT, ACHE, DA, and NE levels. RESULTS： AChE levels were significantly increased, but ChAT levels were significantly decreased in the MLR and MLR ＋ SMAO groups following 2-hour repeffusion （P〈 0.01）. However, AChE activity in the MLR ＋

关键词： mesenteric lymph reperfusion shock superior mesenteric artery occlusion brain neurotransmitter neural regeneration

Novel Hybrid Ligands for Passivating Pb S Colloidal Quantum Dots to Enhance the Performance of Solar Cells

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Nano-Micro Letters 2015年第4期7卷 325-331页

作者： Yuehua Yang Baofeng Zhao yuping Gao Han Liu Yiyao tian Donghuan Qin Hongbin Wu Wenbo Huang Lintao Hou State Key Laboratory of Luminescent Materials & Devices Institute of Polymer Optoelectronic Materials & DevicesSouth China University of Technology Siyuan Laboratory Department of Physics Jinan University

We developed novel hybrid ligands to passivate Pb S colloidal quantum dots(CQDs),and two kinds of solar cells based on as-synthesized CQDs were fabricated to verify the passivation effects of the *** was found that the ligands strongly affected the optical and electrical properties of CQDs,and the performances of solar cells were enhanced *** optimized hybrid ligands,oleic amine/octyl-phosphine acid/Cd Cl2improved power conversion efficiency(PCE)to much higher of 3.72%for Schottky diode cell and 5.04%for p–n junction *** results may be beneficial to design passivation strategy for low-cost and high-performance CQDs solar cells.

关键词： PbS Colloidal quantum dot Solar cells Ligands

A photo-assisted electrochemical-based demonstrator for green ammonia synthesis

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Journal of Energy Chemistry 2022年第5期31卷 826-834页

作者： Xiaolu Liu Zhurui Shen Xinyue Peng Lu tian Ran Hao Lu Wang Yangfan Xu yuping Liu Christos T.Maravelias Wei Li Geoffrey A.Ozin Key Laboratory of Advanced Energy Materials Chemistry College of ChemistryNankai UniversityTianjin 300071China Department of Chemical and Biological Engineering University of Wisconsin–MadisonMadisonWI 53706USA School of Science and Engineering The Chinese University of Hong KongShenzhen 518172GuangdongChina Solar Fuels Group Department of ChemistryUniversity of Toronto 80 St.George StreetTorontoOntario M5S3H6Canada Department of Chemical and Biological Engineering and Andlinger Center for Energy and the Environment Princeton UniversityPrincetonNJ 08544USA

Bridging laboratory research and practical utilization is of crucial importance for the development of green ammonia synthetic technologies. A decentralized photo-assisted electrochemical-based demonstrator has been proposed for green ammonia synthesis from renewable electricity, air and water, where well-known defect-laden WO_(3) is used as the working electrode, and a commercially available PV panel supplies renewable electricity. In this demonstrator, defect-laden WO_(3) exhibits the optimum electrochemical NH_(3) formation rate(4.51 × 10^(-12)mol s^(-1)cm^(-2)) in 0.1 M K_(2)SO_(4)in a photovoltaic electrochemical(PV-EC) system. A system-level energy and cost analysis was conducted to investigate its economic viability and a general evaluation tool for system performance and cost estimation was proposed. This advance enables the possibility of integrating the small-scale green ammonia demonstrator into a stand-alone farm system.

关键词： Ammonia synthesis Electrochemical demonstrator Electrocatalysis Nitrogen reduction reaction System-level energy and cost analysis

具有多非线性和多未建模动态系统的鲁棒绝对稳定性

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自动化学报 1998年第1期24卷 16-23页

作者：田玉平东南大学自动控制系

研究了同时具有多个扇形非线性环节和多个未建模动态的多变量系统的鲁棒绝对稳定性．用带有Ｐｏｐｏｖ乘子的线性分式变换模型对线性和非线性不确定性进行了统一处理．得到了系统的鲁棒绝对稳定性判据，并将这一判据的计算化为凸优化问... 详细信息

研究了同时具有多个扇形非线性环节和多个未建模动态的多变量系统的鲁棒绝对稳定性．用带有Ｐｏｐｏｖ乘子的线性分式变换模型对线性和非线性不确定性进行了统一处理．得到了系统的鲁棒绝对稳定性判据，并将这一判据的计算化为凸优化问题，最后给出了计算示例．

关键词：鲁棒绝对稳定性多非线性多变量系统

Musk secretion in muskrats(Ondatra zibethicus L.):association with lipid and cholesterol metabolism-related pathways

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BIOCELL 2021年第2期45卷 281-306页

作者： tianXIANG ZHANG MEISHAN ZHANG MINGHUI SHI WEIJIANG JIN SHUMIAO ZHANG MENGYUAN FAN YIMENG LI yuping MENG XUELIN tian SHUQIANG LIU DEFU HU School of Ecology and Nature Conservation Beijing Forestry UniversityBeijing100083China Beijing Milu Ecological Research Center Beijing100083China China Wildlife Conservation Association Beijing100083China Jining Academy of Agricultural Sciences Jining272000China

Male muskrats(Ondatra zibethicus L.)secrete musk from their scent glands during musk secretion *** plays an important role as a communication pheromone during the breeding *** this study,gas chromatography–mass spectrometry(GC–MS)was used to analyze the main components of *** GC–MS results after methyl esterification showed that 71.55%of the musk is composed of fatty *** other components of muskrat musk include cholesterol(9.31%)and other *** comparison between musk secretion and non-secretion seasons showed significant changes in the scent glands for 53 genes involved in fatty acid and cholesterol synthesis and metabolism regulatory pathways,which include fatty acid biosynthesis,elongation,and metabolism;steroid biosynthesis;steroid hormone biosynthesis pathways.A reverse transcription–polymerase chain reaction analysis confirmed these detected ***,our results indicated that lipid synthesis and metabolism play important roles in musk compound synthesis by providing energy for musk production,and the produced musk provides a mechanism for male muskrats to communicate with females during the breeding season.

关键词： Muskrat Scent gland RNA-seq Lipid Cholesterol