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Robust power control method for wireless sensor networks with static output feedback

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控制理论与应用（英文版） 2012年第1期10卷 44-49页

作者： dongmei zhang Xingang WANG Jun LIU College of Science Zhejiang University of Technology Hangzhou Zhejiang 310032 China College of Information Engineering Zhejiang University of Technology Hangzhou Zhejiang 310032 China School of Mathematics Beihua University Jilin Jilin 132013 China

This paper proposed distributed strategies for the joint control of power and data rates in a wireless sensor network. By adapting a linear state-space model to describe the network dynamics, the power controller with static output feedback is designed in the case that the transmission signal are not always available and the estimation of the unmeasured states constitutes a crucial task in the network. The existence of the power controller is formulated as the feasibility of the convex optimization problem, which can be solved via a linear matrix inequality （LMI） approach. The proposed algorithm also caters to the uncertainties in the network dynamics. Numerical examples are given to illustrate the effectiveness of the proposed methods.

关键词： Wireless sensor network Power control Static output feedback

不同类型配生土与固体废弃物大田配施对绿地土壤理化性质和白玉兰生长的影响

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上海农业学报 2024年第4期40卷 51-59页

作者：杨娜张浪张冬梅傅仁杰上海市园林科学规划研究院上海城市困难立地绿化工程技术研究中心上海200232

为研究白玉兰配生土与固体废弃物配施对绿地土壤理化性质和白玉兰生长的影响,利用4种白玉兰配生土(降盐型、沃土型、消污型和疏松型)与3种固体废弃物(建筑废弃物、农林废弃物和餐厨垃圾有氧发酵初产物)进行大田配施,于白玉兰种植后180d... 详细信息

为研究白玉兰配生土与固体废弃物配施对绿地土壤理化性质和白玉兰生长的影响,利用4种白玉兰配生土(降盐型、沃土型、消污型和疏松型)与3种固体废弃物(建筑废弃物、农林废弃物和餐厨垃圾有氧发酵初产物)进行大田配施,于白玉兰种植后180d、360d和720d分别测定表层土壤(0—30cm)pH、水溶性盐分含量、有机质含量、容重以及白玉兰相对生长率和叶绿素含量。结果表明:4种配生土和3种固体废弃物大田配施后,与原土处理(CK)相比,土壤pH和容重分别降低了8.53%—13.36%和22.62%—48.61%,水溶性盐分和有机质含量分别提高了182.9%—745.9%和38.45%—279.3%;种植后720d,白玉兰株高相对生长率提高了25.9%—102.9%,叶绿素含量提高了46.95%—67.38%。综合考虑土壤改良效果和固体废弃物消纳能力,处理降盐型Y2、沃土型F3、消污型M2和疏松型S2对土壤质量的改良及白玉兰植株生长作用较好,同时有助于固体废弃物的消纳和资源化利用。

关键词：白玉兰配生土固体废弃物绿地土壤理化性质

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米糠蛋白乳化性能及其改性方法研究进展

食品与机械 2024年第1期40卷 204-211,240页

作者：欧文华曹天翔张冬梅顾理浩张婉萍蒋汶上海应用技术大学香料香精技术与工程学院上海201418

天然米糠蛋白的乳化性较差,限制了其在食品工业中的应用,需采用合适的方法对其进行改性。文章以米糠为研究对象,总结了米糠蛋白的组成、乳化性能以及改性方面的最新研究进展,提出通过改进米糠蛋白的改性工艺,或利用融合不同高新技术来... 详细信息

天然米糠蛋白的乳化性较差,限制了其在食品工业中的应用,需采用合适的方法对其进行改性。文章以米糠为研究对象,总结了米糠蛋白的组成、乳化性能以及改性方面的最新研究进展,提出通过改进米糠蛋白的改性工艺,或利用融合不同高新技术来改善米糠蛋白的乳化性能,并以此扩展米糠蛋白的开发利用思路,加速米糠蛋白在食品及化妆品中的应用进程。

关键词：米糠蛋白蛋白质组成蛋白质结构乳化性能改性方法

陆地棉抗黄萎病基因GhENODL6互作蛋白筛选

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华北农学报 2024年第3期39卷 173-178页

作者：郑鑫鑫张艳解美霞张冬梅吴立强王省芬杨君河北农业大学河北省棉花产业协同创新中心华北作物改良与调控国家重点实验室河北保定071001

研究发现陆地棉ENODL6基因具有抗黄萎病功能。为进一步揭示其在棉花抗黄萎病过程中发挥的作用,通过Nimble Cloning技术将GhENODL6插入酵母表达载体pNC-GBKT7,构建了重组质粒pNC-GBKT7-ENODL6。重组质粒转入酵母菌Y2HGold后可在DDO培养... 详细信息

研究发现陆地棉ENODL6基因具有抗黄萎病功能。为进一步揭示其在棉花抗黄萎病过程中发挥的作用,通过Nimble Cloning技术将GhENODL6插入酵母表达载体pNC-GBKT7,构建了重组质粒pNC-GBKT7-ENODL6。重组质粒转入酵母菌Y2HGold后可在DDO培养基上正常生长,但不能生长于QDO/X/A培养基,表明GhENODL6蛋白对酵母宿主无毒害作用,没有自激活活性。将携带pNC-GBKT7-ENODL6诱饵载体的Y2HGold酵母菌与cDNA文库进行杂交筛选,结果获得一个能够显示蓝色的菌落。通过PCR扩增,在蓝色酵母菌中获得一段526 bp的非载体插入片段,与陆地棉基因组内基因WRKY47序列高度一致。通过同源扩增,从陆地棉中克隆到WRKY47开放读码框,全长1 587 bp,编码528个氨基酸残基。再次利用酵母双杂交技术确认了WRKY47与GhENODL6之间存在互作关系。综上,构建了重组载体pNC-GBKT7-ENODL6,并鉴定到与GhENODL6互作的蛋白WRKY47。

关键词：陆地棉黄萎病酵母双杂交互作蛋白筛选

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CD93 and GIPC expression and localization during central nervous system inflammation

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Neural Regeneration Research 2014年第22期9卷 1995-2001页

作者： Chun Liu Zhichao Cui Shengjie Wang dongmei zhang Experimental Animal Center Key Laboratory of Inflammation and Molecular Drug Targets of Jiangsu ProvinceNantong University Department of Pathogen Biology Medical School of Nantong University

CD93 and GAIP-interacting protein, C termius （GIPC） have been shown to interactively alter phagocytic processes of immune cells. CD93 and GIPC expression and localization during cen-tral nervous system inflammation have not yet been reported. In this study, we established a rat model of brain inlfammation by lipopolysaccharide injection to the lateral ventricle. In the brain of rats with inlfammation, western blots showed increased CD93 expression that decreased over time. GIPC expression was unaltered. Immunohistochemistry demonstrated extensive distribution of CD93 expression mainly in cell membranes in the cerebral cortex. After lipopoly-saccharide stimulation, CD93 expression increased and then reduced, with distinct staining in the cytoplasm and nucleus. Double immunolfuorescence staining in cerebral cortex of normal rats showed that CD93 and GIPC widely expressed in resting microglia and neurons. CD93 was mainly expressed in microglial and neuronal cell membranes, while GIPC was expressed in both cell membrane and cytoplasm. In the cerebral cortex at 9 hours after model establishment, CD93-immunoreactive signal diminished in microglial membrane, with cytoplasmic transloca-tion and aggregation detected. GIPC localization was unaltered in neurons and microglia. These results are the ifrst to demonstrate CD93 participation in pathophysiological processes of central nervous system inlfammation.

关键词： nerve regeneration central nervous system brain inflammation model CD93 GIPC neurons microglia expression and localization lipopolysaccharide intracerebroventricular injection rats inducible nitric oxide synthase NSFC grants neural regeneration

PSO-BP-Based Optimal Allocation Model for Complementary Generation Capacity of the Photovoltaic Power Station

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Energy Engineering 2023年第7期120卷 1717-1727页

作者： Zhenfang Liu Haibo Liu dongmei zhang Department of Electrical Automation Hebei University ofWater Resources and Electric EngineeringHebei UniversityWater Conservancy Automation and Informatization Application Technology Research and Development CenterCangzhou061001China

To improve the operation efficiency of the photovoltaic power station complementary power generation system,an optimal allocation model of the photovoltaic power station complementary power generation capacity based on PSO-BP is *** Swarm Optimization and BP neural network are used to establish the forecasting model,the Markov chain model is used to correct the forecasting error of the model,and the weighted fitting method is used to forecast the annual load curve,to complete the optimal allocation of complementary generating capacity of photovoltaic power *** experimental results show that thismethod reduces the average loss of photovoltaic output prediction,improves the prediction accuracy and recall rate of photovoltaic output prediction,and ensures the effective operation of the power system.

关键词： Photovoltaic power station complementary power generation capacity optimization resource allocation

Evaluation of train-induced settlement for metro tunnel in saturated clay based on an elastoplastic constitutive model

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Underground Space 2018年第2期3卷 109-124页

作者： Qiang Huang Hongwei Huang Bin Ye dongmei zhang Feng zhang Department of Geoteclnical Engineering Tongi UniversityShanghai 200092China Key Laboratory of Geotechnical and Underground Engineering(Tongji University) Ministry of EducationShanghai 200092China Department of Geoteclmical Engineering Nagoya Institute of TechnologyNagoya 466-8555Japan

In this study,a two-dimensional(2D)soil–water coupling dynamicﬁnite element(FE)analysis is conducted to investigate the effect of repeated train vibrations on the long-term settlement of a metro tunnel in saturated *** attention is paid to the leakage prob-lem of the metro tunnel by assuming different permeability conditions,namely fully permeable,fully impermeable,and partially perme-able,on the periphery of the tunnel for *** train vibration load isﬁrst evaluated using a rail–fastener–tunnel–subgrade model and averaged over a characteristic length for 2D numerical *** Mobility model is used to simulate the mechanical behaviors of saturated soft clay in the FE *** pore water pressure(EPWP)and associated tunnel settlement in trial operation and normal operation are calculated using the FE code DBLEAVES for different permeability *** is found that a very low EPWP is generated in the trial operation,which then increases rapidly to peak values at the early days of normal ***,the EPWP diminishes gradually as the train vibration *** permeability of the tunnel lining plays a signiﬁcant role in the distri-bution of EPWP around the tunnel but produces a minor inﬂuence on the development of tunnel *** train-induced tunnel settlement is mainly caused by the static settlement resulting from the EPWP dissipation during train interval,while the dynamic settle-ment arising from dynamic consolidation in each train vibration only accounts for a small *** to the 2D dynamic FE analysis,theﬁnal train-induced settlement of the metro tunnel in saturated clay is estimated to reach 160 mm while the peak EPWP value can reach 26.55 *** settlement discrepancies between the numerical method and empirical method are discussed in detail.

关键词： Dynamic finite element analysis Cyclic M obility model Saturated clay Excess pore water pressure Settlement of metro tunnel Permecability

Spectroscopic studies of dye-surfactant interactions with the co-existence of heavy metal ions for foam fractionation

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Journal of Environmental Sciences 2012年第12期24卷 2068-2074页

作者： dongmei zhang Guangming Zeng Jinhui Huang Wenkai Bi Gengxin Xie College of Environmental Science and Engineering Hunan UniversityChangsha 410082China Key Laboratory of Environmental Biology and Pollution Control Hunan UniversityMinistry of EducationChangsha 410082China

The interaction between a cationic dye Methylene Blue （MB） and an anionic surfactant sodium dodecyl sulfate （SDS） with the presence of Cd2＋ was investigated spectrophotometrically in a certain concentration range. The spectrophotometric measurements of dye-metal ion-surfactant system were carried out. The results indicated that the SDS concentration had a significant influence on the dye spectrum, while the addition of Cd2~ hardly caused change of the maximum value of absorbance. According to this observation, we concluded that electrostatic and hydrophobic interaction between dye and surfactant occurred up to a certain level, and the homo-ions Cd2＋ almost exerted no effect on the dye-surfactant complexation, establishing a theoretical foundation for simultaneous removal of organic dye and heavy metal using foam fractionation. Meanwhile, the effects of their interaction on foam performance were investigated. The results showed that the addition of Cd2＋ favored the tendency to ameliorate foam properties just contrary to MB. The feasibility of foam separation for dye and heavy metal removal from simulated wastewater was also confirmed using a continuous foam fractionator. In the simultaneous removal process, with the initial SDS concentration ranging from 0.5 to 5.0 retool/L, the maximum removal efticiencies of MB and Cd2＋ were obtained as 99.69% and 99.61%, respectively. The enrichment ratios were reduced from 24.34 to 7.65 for MB and from 22.01 to 3.35 for Cd2＋.

关键词： foam fractionation simultaneous removal spectroscopic study SDS MB Cd2+

壳聚糖衍生碳包覆纳米硅复合材料锂离子电池性能研究

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材料导报 2024年第10期38卷 12-17页

作者：吴强李正伟周建华张冬梅党锋刘文平苗蕾桂林电子科技大学材料科学与工程学院广西电子信息材料构效关系重点实验室山东大学材料科学与工程学院中国有色桂林矿产地质研究院有限公司国家特种矿物材料工程技术研究中心广西超硬材料重点实验室

硅负极材料因具有较高的理论容量(Li22Si5合金相对应4 200 mAh/g)、较低的工作电压（0.2～0.3 V vs Li/Li+）和地球上丰富的原材料储备，成为代替石墨负极的理想材料之一。但是，低电导率及在循环过程中发生剧烈体积膨胀导致电极失效问... 详细信息

硅负极材料因具有较高的理论容量(Li22Si5合金相对应4 200 mAh/g)、较低的工作电压（0.2～0.3 V vs Li/Li+）和地球上丰富的原材料储备，成为代替石墨负极的理想材料之一。但是，低电导率及在循环过程中发生剧烈体积膨胀导致电极失效问题限制了硅负极材料的进一步发展。因此，本工作通过物理法利用壳聚糖和石墨对纳米硅实现碳包覆和复合，制备壳聚糖/石墨@纳米硅复合材料（C/G@Si复合材料）,对C/G@Si复合材料的结构、形貌和电化学性能进行研究。结果表明：随着石墨添加量的提高，C/G@Si复合材料的可逆比容量略微下降，循环性能和导电性能显著提高。当添加50%（质量分数）石墨时，在100 mA/g的电流密度下，C/G@Si复合材料的首次放电比容量为1 136.1 mAh/g,循环充放电100次后剩余容量保持在658.5 mAh/g,展示出优异的电化学性能，对进一步推广硅碳负极材料具有一定的参考价值。

关键词：锂离子电池硅碳负极材料壳聚糖石墨掺杂