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Recent progress in carbon-dots-based nanozymes for chemosensing and biomedical applications

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Chinese Chemical Letters 2021年第10期32卷 2994-3006页

作者： deming he Minmin Yan Pengjuan Sun Yuanqiang Sun Lingbo Qu Zhaohui Li College of Chemistry Green Catalysis CenterHenan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical ApplicationsZhengzhou Key Laboratory of Functional Nanomaterial and Medical TheranosticZhengzhou UniversityZhengzhou 450001China

Nanozymes are nanomaterials with enzyme-like activities that efficiently overcome the drawbacks of natural enzymes in biosensing,detection,and biomedical fields,and they are the most widely used artificial *** to their excellent catalytic characteristics,biocompatibility,and environmental favorability,carbondots-based(CDs) nanozymes have inspired a research ***,no review focusing on CDs nanozymes has been published,even though substantial advances have been ***,the advances,catalytic activities,and applications of CDs nanozymes are highlighted and *** addition,the critical issues and challenges of researching nanozymes are *** hope that this review will broaden the horizons of nanozymes and CDs nanozymes,as well as promote their development.

关键词： Carbon dots Nanozyme Chemosensing Catalytic activity Bioimaging

云南文山薄竹山山顶苔藓矮林物种组成与群落特征

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植物研究 2024年第5期44卷 738-752页

作者：黄红税玉民张志明罗家旺何德明杨冲王伟陈文红中国科学院东亚植物多样性与生物地理学重点实验室昆明650201 中国科学院大学北京100049 滇东南热带山地森林生态系统定位研究站屏边661200 云南大学生态与环境学院昆明650091 云南文山国家级自然保护区管护局文山663000

为了补充和完善我国西南地区山顶苔藓矮林的群落种类组成和结构特征,基于1 hm^(2)动态监测样地的群落调查数据,采用CTFS标准调查样地内胸径(DBH)≥1 cm的所有木本植物;从1 hm^(2)森林动态监测样地中选取10个(总计0.6 hm^(2),每个样方为2... 详细信息

为了补充和完善我国西南地区山顶苔藓矮林的群落种类组成和结构特征,基于1 hm^(2)动态监测样地的群落调查数据,采用CTFS标准调查样地内胸径(DBH)≥1 cm的所有木本植物;从1 hm^(2)森林动态监测样地中选取10个(总计0.6 hm^(2),每个样方为20 m×30 m)标准植被样方,采用植物群落清查方法对样方内所有维管植物进行调查和统计;从物种组成特征、数量特征、主要优势树种的径级结构等角度入手,分析样地内的物种组成和群落结构特征。主要结果:(1)在1 hm^(2)动态样地中,DBH≥1 cm的木本植物共计20科32属42种3614株个体;在0.6 hm^(2)群落样地中,维管植物共计42科67属103种,其中树高≥3 m的乔木共计24种1536株个体。(2)厚叶杜鹃(Rhododendron sinofalconeri)在群落中占绝对优势,重要值比次优势物种的重要值大3~4倍。(3)整个群落年龄结构呈“L”型,但厚叶杜鹃以成年个体为优势而不同于其他优势种。(4)该群落由乔木层、灌木层、草本层和层间植物组成,命名为厚叶杜鹃-大花云南桤叶树-文山八角山顶苔藓矮林(Rhododendron sinofalconeri,Clethra delavayi ***,Illicium tsaii summit mossy dwarf forests)。云南文山薄竹山山顶苔藓矮林群落物种丰富、组成稳定、优势显著,更新状况良好。群落林冠外貌平整,处于成熟林状态。

关键词：群落结构径级分布厚叶杜鹃物种组成

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一种天波超视距短波目标的直接定位算法

信息对抗技术 2024年第2期3卷 27-37页

作者：何德明杜鑫苹夏威李会勇李明电子科技大学信息与通信工程学院四川成都611731 电子科技大学长三角研究院(衢州) 浙江衢州324003

针对利用运动接收机对静止超视距短波无线电目标定位的问题,提出了一种基于极大似然准则的天波超视距直接定位算法,进一步应用引力搜索算法,以实现高效的目标位置估计。推导了在上述问题中目标位置估计的克拉美罗下界(Cramér-Rao lower... 详细信息

针对利用运动接收机对静止超视距短波无线电目标定位的问题,提出了一种基于极大似然准则的天波超视距直接定位算法,进一步应用引力搜索算法,以实现高效的目标位置估计。推导了在上述问题中目标位置估计的克拉美罗下界(Cramér-Rao lower bound,CRLB),并分析了所提算法的计算复杂度。仿真实验结果表明,与传统的针对视距目标的直接定位算法相比,所提出的算法能显著提高对天波超视距短波目标定位的精度,且性能非常接近CRLB;相比于对应的网格搜索算法,在保持较高定位精度的同时,所提算法具有更高的计算效率。

关键词：超视距定位直接定位引力搜索算法 CRLB

云平台下海量电力突发性数据自动储存技术研究

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电子设计工程 2024年第12期32卷 122-126页

作者：吴飞何德明郭敬东刘文亮钟文国网福建省电力有限公司福建福州350003

在海量电力突发性数据自动储存中,数据量无法达到规定阈值,储存执行时间过长,储存加速度比较低。为了解决上述问题,在云平台下研究了一种新的海量电力突发性数据自动储存技术。利用边缘层、基础层、平台层和应用层建立云平台架构,通过... 详细信息

在海量电力突发性数据自动储存中,数据量无法达到规定阈值,储存执行时间过长,储存加速度比较低。为了解决上述问题,在云平台下研究了一种新的海量电力突发性数据自动储存技术。利用边缘层、基础层、平台层和应用层建立云平台架构,通过自动储存算法计算选择频率,根据染噪信息获得原始信号最终分解结果,实现突发性数据自动储存。实验结果表明,所研究储存技术能够较好地提高储存数据量,降低执行时间,储存加速度比能够达到17,具有较好的储存能力。

关键词：云平台海量电力突发性数据自动储存

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基于回溯搜索的电力时序数据库集群拓展方法

电子设计工程 2024年第12期32卷 96-99,108页

作者：刘文亮郭敬东吴飞何德明林少钧国网福建省电力有限公司福建福州350003

现有的电力时序数据库集群拓展方法拓展响应时间较低,导致集群效率较差,因此基于回溯搜索研究了一种新的电力时序数据库集群拓展方法。通过数据库集群搜索拓扑结构的邻接矩阵,计算电力数据库中关联性较高的数据拓扑结构,直接明确数据搜... 详细信息

现有的电力时序数据库集群拓展方法拓展响应时间较低,导致集群效率较差,因此基于回溯搜索研究了一种新的电力时序数据库集群拓展方法。通过数据库集群搜索拓扑结构的邻接矩阵,计算电力数据库中关联性较高的数据拓扑结构,直接明确数据搜索的目标,缩小数据搜索可确定的范围。针对搜索拓扑内的电力数据,采用回溯搜索算法中的分层回溯原则,为数据库集群内数据搜索行为增加约束条件。根据开关矩阵判断数据节点之间的关系,实现电力时序数据库的集群拓展。实验结果表明,基于回溯搜索的电力时序数据库集群拓展方法的拓展响应时间低于0.5 s,集群效率在98%以上。

关键词：回溯搜索电力时序数据数据库集群集群拓展邻接矩阵

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基于双联盟链的电网分布式异构数据共享研究

电子设计工程 2024年第12期32卷 118-121,126页

作者：何德明吴飞刘文亮郭敬东杜旭光国网福建省电力有限公司福建福州350003

电网异构数据分布较为广泛,难以实现有效共享,导致数据共享时延增加、吞吐量变小。为了解决这些问题,提出了基于双联盟链的电网分布式异构数据共享方法。利用双联盟链平台开源代码配置数据共享环境,生成新区块。使用哈希值函数检验区块... 详细信息

电网异构数据分布较为广泛,难以实现有效共享,导致数据共享时延增加、吞吐量变小。为了解决这些问题,提出了基于双联盟链的电网分布式异构数据共享方法。利用双联盟链平台开源代码配置数据共享环境,生成新区块。使用哈希值函数检验区块数据,将同一个属性的异构节点放置在同一通道中。引入全同态加密技术分割明文,获取明文序列,实现单节点跨链数据共享。考虑各个节点隐私情况,采用安全多方计算方式处理相似异构数据,保证异构数据一致性,计算所有节点、局部节点权重,保证数据共享安全性,实现多节点跨链数据共享,从而达到电网分布式异构数据加密共享的目标。实验结果表明,该方法的最大共享时延为10 s,最大吞吐量为460 bit,数据共享效果良好。

关键词：双联盟链电网分布式异构数据全同态加密

A Cooperated Imperialist Competitive Algorithm for Unrelated Parallel Batch Machine Scheduling Problem

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Computers, Materials & Continua 2024年第5期79卷 1855-1874页

作者： deming Lei heen Li College of Automation Wuhan University of TechnologyWuhan430070China

This study focuses on the scheduling problem of unrelated parallel batch processing machines(BPM)with release times,a scenario derived from the moulding process in a *** this process,a batch is initially formed,placed in a sandbox,and then the sandbox is positioned on a BPM *** complexity of the scheduling problem increases due to the consideration of BPM capacity and sandbox *** minimize the makespan,a new cooperated imperialist competitive algorithm(CICA)is *** CICA,the number of empires is not a parameter,and four empires aremaintained throughout the search *** types of assimilations are achieved:The strongest and weakest empires cooperate in their assimilation,while the remaining two empires,having a close normalization total cost,combine in their assimilation.A new form of imperialist competition is proposed to prevent insufficient competition,and the unique features of the problem are effectively *** experiments are conducted across several instances,and a significant amount of experimental results show that the newstrategies of CICAare effective,indicating promising advantages for the considered BPMscheduling problems.

关键词： Release time assimilation imperialist competitive algorithm batch processing machines scheduling

Yield Effect of Chemical and Soil Nitrogen on the Mid-season and Ratooning Hybrid Rice

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Journal of Northeast Agricultural University(English Edition) 2009年第3期16卷 17-21页

作者： BAO Lingfeng LINT Gang ZHAO deming LI Yunwu he Bin Agricultural Science Academy ofYibin Yibin 644000 Sichuan China

Using hybrid rice Yixiang1577 as the material, the mid-season and ratooning hybrid rice yield variation was studied in Southem Sichuan at different levels of nitrogen fertilizer. The results showed that rice yield by using N fertilizer increased to the most significant level than no fertilizer ones, and the mid-season rice and rice yield by using more N fertilizer increased to the significant level than less fertilizer ones. The rice yield by using no fertilizer ones increased to the most significant level than some used fertilizer, and the ratooning rice and rice yield by using more N fertilizer decreased to the most significant level than less fertilizer ones. The rice yield by using some fertilizer increased to the most significant level than no fertilizer ones for mid-season＋rationing rice and rice yield by using some fertilizer had no obvious differences at different nitrogen levels. Therefore, application of fertilizer can improve yield of mid-season rice and mid-season＋rationing rice. Soil test results showed that nutrient contents in rice field in South Sichuan were very rich in nitrogen, which could provide more adequate crop growth potential soil nitrogen nutrition. The crops with a deep root system had stronger ability of utilization on soil nitrogen. Therefore, the ratooning rice used no or little N fertilizer had a high yield performance because they made full use of soil nitrogen with deep root system.

关键词： rice chemical nitrogen soil nitrogen yield

Analysis on the combination ability and stability of rice restore line Yihui1577

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Journal of Northeast Agricultural University(English Edition) 2007年第4期14卷 301-305页

作者： BAO Lingfeng LIN Gang ZHAO deming LI Yunwu he Bing Yibin Academy of Agricultural Sciences Yibin 644000 Sichuan China

Yihui1577 was bred after over 10 generations by crossing RI6 and Yunnan purple rice. Many new hybrid rice varieties had been bred with Yihui 1577, of which Gangyou 1577, Ⅱ you1577, Nyou 1577 and Yixiang1577 were certified by Sichuan Province Crop Variety Release Committee, Gangyou1577 and Yixiang1577 were certified by National Crop Variety Release Committee. The series varieties bred with Yihui1577 had been used widely with accumulated areas of 1 200 000 hm2. By using Yihui1577 as breeding material, an excellent restore line Yihui 3003 and some other restore lines, such as Yihui 1979, Yihui 315 with good rice quality and good combination ability had been bred. Analysis of combination ability and stability about restore line Yihui 1577 was made by using agricultural experimentation and statistical approach. The combination ability analysis was made in complete dual crossing method with 4 CMS lines and 6 restorer lines. It showed that the general combination ability effect value of Yihui1577 was 0.226, while Minghui63 was -0.113. So the general combination ability ofYihui1577 was prior to that of Minghui 63. Stability analysis showed that the F value of Gangyou1577 was 1.81378, while Sanyou 63 was 1.40327, both didn＇t reach significant level. So Gangyou1577 had the same stability as Sanyou 63. The same conclusion had got in the stability analysis of the breeds of Ⅱ you 1577, Yixiang 1577, Nyou 1577 and so on.

关键词： rice restore line Yihui 1577 combination ability stability