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园林观赏苗木的整形修剪

园艺与种苗 2024年第7期44卷 25-26,30页

作者：杨伟民黄淮学院园林绿化开发研究中心河南驻马店463000

整形修剪是一项重要的园艺实践。文中阐述了园林苗木整形修剪的目的、意义及适宜的时间,介绍了常见观赏苗木的树形,并对抹芽、摘心、短截、疏枝、拉枝、刻伤、剪口处理等具体修剪方法进行了总结,以期为园林工作者科学修剪提供参考。

关键词：园林苗木整形修剪

污水处理厂网一体化异构网络数据融合及容错技术

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中国给水排水 2024年第2期40卷 106-114页

作者：杨卫民李贝邓凯朱海洋张雄辉周威万祥武汉科迪智能环境股份有限公司湖北武汉430058 武汉市城市排水发展有限公司北湖污水处理厂湖北武汉430082

以武汉北湖污水处理厂(处理规模80×10^(4)m^(3)/d)和配套大东湖污水隧道各预处理站为例,对生产监控系统涉及的各网络节点、站点和数据特征进行深入分析和研究。采用异构网络融合技术对厂内自控SCADA系统、厂用电监控系统(ECS)和视频图... 详细信息

以武汉北湖污水处理厂(处理规模80×10^(4)m^(3)/d)和配套大东湖污水隧道各预处理站为例,对生产监控系统涉及的各网络节点、站点和数据特征进行深入分析和研究。采用异构网络融合技术对厂内自控SCADA系统、厂用电监控系统(ECS)和视频图像VMS系统进行了数据中心数据接入融合,并扩展延伸到厂外大东湖污水隧道各预处理站的信号融合接入和厂内管理部门、厂外上级部门、监管部门的生产信息发布。同时广泛采用容错技术保证各节点信号传输的可靠性、稳定性和准确性。数据中心基础设施采用超融合虚拟化技术对监控系统实时数据服务器、历史数据服务器、WEB发布服务器进行虚拟池化部署,并采用面向对象的组件实现方法,在数据中心层面对设备多种属性进行归一化处理、一体化发布,方便运行人员更直观地通过一个数据中心平台监控全厂及管网泵站(预处理站)设备工艺自控信号、电气运行参数和视频图像信号,消除了传统生产监控系统因多系统部署导致信息割裂的“孤岛现象”。武汉北湖污水处理厂自2020年11月通水生产以来,该示范项目技术应用运行稳定,完全达到预期效果。

关键词：北湖污水处理厂大东湖污水隧道预处理站异构网络一体化融合容错技术

Behaviors of different inhibitors during secondary recrystallization of a grain-orientated silicon steel

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International Journal of minerals,Metallurgy and Materials 2011年第3期18卷 314-319页

作者： Feng-e Cui Ping yang wei-min Mao School of Materials Science and Engineering University of Science and Technology Beijing 100083 China

The behaviors of different inhibitors including their composition, size, distribution, coalescence and coarsening were experimen-tally studied. It was observed that during secondary recrystallization of the tested steel, the key inhibition effect was produced by Cu2S and AlN, but not MnS. With the increase of temperature, the size distributions of AlN and Cu2S were changed to some extent. However, signifi-cant changes in particle size were not observed. The initial temperature of abnormal growth was determined by measuring the evolution of particle sizes and their distribution density during heat treatment. AlN and Cu2S are the dominant inhibitors and both are necessary, which is verified by calculating the Zener factor.

关键词： silicon steel secondary recrystallization inhibitors grain growth

Graded Lie Algebra Generating of Parastatistical Algebraic Relations

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Communications in Theoretical Physics 2001年第12期36卷 647-650页

作者： JING Si-Cong yang wei-min LI Ping Department of Modern Physics University of Science and Technology of China Hefei 230026 China Department of Modern Physics University of Science and Technology of China Hefei 230026 China Department of Modern Physics University of Science and Technology of China Hefei 230026 China

A new kind of graded Lie algebra (We call it Z2,2 graded Lie algebra) is introduced as a framework for formulating parasupersymmetric theories. By choosing suitable Bose subspace of the Z2,2 graded Lie algebra and usi... 详细信息

关键词： graded Lie algebra, parastatistics, supersymmetry

Ground State Mass Spectrum for Scalar Diquarks with Bethe-Salpeter Equation

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Communications in Theoretical Physics 2007年第2期47卷 287-292页

作者： WANG Zhi-Gang WAN Shao-Long yang wei-min Department of Physics North China Electric Power University Baoding 071003 China Department of Modern Physics University of Science and Technology of China Hefei 230026 China

In this article, we study the structures of the pseudoscalar mesons π, K and the scalar diquarks U^a, D^a, Sa in the framework of the coupled rainbow Schwinger-Dyson equation and ladder Bethe-Salpeter equation with the confining effective potential. The u, d, s quarks have small current masses, and the renormalization is very large, the mass poles in the timelike region are absent which implements confinement naturally. The Bethe-Salpeter wavefunctions of the pseudoscalar mesons π, K, and the scalar diquarks U^a, D^a, S^a have the same type （Gaussian type） momentum dependence, center around zero momentum and extend to the energy scale about q^2 = 1 GeV^2, which happens to be the energy scale for the chiral symmetry breaking, the strong interactions in the infrargd region result in bound （or quasl-bound） states. The numerical results for the masses and decay constants of the π and K mesons can reproduce the experimental values, and the ground state masses of the scalar diquarks U^a, D^a, S^a are consistent with the existing theoretical calculations. We suggest a new Lagrangian which may explain the uncertainty of the masses of the scalar diauarks.

关键词： Schwinger-Dyson equation Bethe-Salpeter equation diquark confinement

Reanalyzing Pentaquark Θ^＋（1540） in Framework of QCD Sum Rules Approach with Direct Instantons

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Communications in Theoretical Physics 2006年第2期45卷 320-324页

作者： WANG Zhi-Gang yang wei-min WAN Shao-Long Department of Physics North China Electric Power University Baoding 071003 China Department of Modern Physics University of Science and Technology of China Hefei 230026 China

In this article, we study the pentaquark state Θ＋（1540） with a （scalar） diquark-（pseudoscalar） diquarkantiquark type interpolating current in the framework of the QCD sum rules approach by including the contributions from the direct instantons. The numerical results indicate that the contributions from the direct instantons are very small and can be safely neglected.

关键词： QCD sum rules instanton pentaquark state

A Model of Fermion Masses and Flavor Mixings with Family Symmetry SU(3)U(1)

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Communications in Theoretical Physics 2012年第1期57卷 71-77页

作者： yang wei-min WANG Qi ZHONG Jin-Jin Department of Modern Physics University of Science and Technology of ChinaHeebei 230026China

The family symmetry SU（3） U（1） is proposed to solve flavor problems about fermion masses and flavor mixings. It is breaking is implemented by some flavon fields at the high-energy scale. In addition a discrete group Z2 is introduced to generate tiny neutrino masses, which is broken by a real singlet scalar field at the middle-energy scale. The low-energy effective theory is elegantly obtained after all of super-heavy fermions are integrated out and decoupling. All the fermion mass matrices are regularly characterized by four fundamental matrices and thirteen parameters. The model can perfectly fit and account for all the current experimental data about the fermion masses and flavor mixings, in particular, it finely predicts the first generation quark masses and the values of θ13and JCp in neutrino physics. All of the results are promising to be tested in the future experiments.

关键词： family symmetry fermion mass flavor mixing neutrino physics

基于VMD-XGBoost模型及因果特征选取的汽轮发电机组振动信号预测技术研究

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汽轮机技术 2024年第3期66卷 221-224,228页

作者：陈宇豪杨为民郭瑞姜虓刘振祥谭平大型发电装备安全运行与智能测控国家工程研究中心东南大学南京210096 国网福建电力科学研究院福州350007

“双碳”目标下,我国能源格局产生深刻变化,对汽轮机发电机安全稳定运行的要求进一步提高,深入挖掘分析海量运行数据有助于机组运行状态的评估及预测。提出构建汽轮发电机组参数因果关系网络探究参数间的因果关系,利用VMD算法分解振动... 详细信息

“双碳”目标下,我国能源格局产生深刻变化,对汽轮机发电机安全稳定运行的要求进一步提高,深入挖掘分析海量运行数据有助于机组运行状态的评估及预测。提出构建汽轮发电机组参数因果关系网络探究参数间的因果关系,利用VMD算法分解振动信号并搭建XGBoost预测模型对各信号分量进行预测,叠加各信号分量的预测值以得到振动信号的预测结果。利用国内某1000MW汽轮发电机组运行数据对所提模型进行论证实验,结果表明本文所提模型有较高预测精度。

关键词：汽轮发电机组轴系振动趋势预测因果发现数据驱动变分模态分解极端梯度提升

The relation between modes of lithologic association and interlayer-gliding structures in coal mine

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Journal of Coal Science & Engineering(China) 2010年第1期16卷 47-52页

作者： LE Qi-lang CHEN Ping yang wei-min School of Earth Sciences and Environmental Engineering Anhui University of Science and Technology Huainan 232001 China

As a case study of the Panji No.1 Coal mine in Anhui Province, based on thesite measured and statistical data, summarized the lithologic associations, characteristicsand distribution laws of interlayer-gliding structures and tectonic coal in the No.11-2 *** results show that 9 modes of lithologic association can form *** is more easy for rock slip to occur when the lithologic associations are mainroof + coal seam + immediate floor type, compound roof+immediate roof + coal seam +immediate floor type and immediate roof + coal seam + immediate floor *** of roof and floor are the precondition to the formation of interlayer-glidingstructures.

关键词： coal seam roof and floor modes of lithologic association interlayer-gliding structure Panji No.1 Coal mine