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65Mn钢的光谱发射率研究

河南师范大学学报（自然科学版） 2019年第5期47卷 64-69页

作者：朱遵略高岳河南师范大学物理与材料科学学院

在800~1100K的温度范围内,采用单波长测温方法,利用自行研制的实验装置,在空气中测量研究了16个不同温度下65Mn钢的光谱发射率随测量时间的变化情况.研究结果表明光谱发射率的共振与65Mn钢的表面氧化情况密切相关.由表面氧化导致光谱发... 详细信息

在800~1100K的温度范围内,采用单波长测温方法,利用自行研制的实验装置,在空气中测量研究了16个不同温度下65Mn钢的光谱发射率随测量时间的变化情况.研究结果表明光谱发射率的共振与65Mn钢的表面氧化情况密切相关.由表面氧化导致光谱发射率的不确定性为5.7%~14.6%,相应的温度误差为6.2~11.1K.通过建模拟合,同时也得到了光谱发射率随加热时间变化的解析表达式,模拟计算结果与实验结果符合较好.

关键词： 65Mn钢发射率氧化层红外辐射理论

Symmetry-protected third-order exceptional points in staggered flatband rhombic lattices

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Photonics Research 2023年第2期11卷 225-233页

作者： YINGYING ZHANG SHIQIANG XIA XINGDONG ZHAO LU QIN XUEJING FENG WENRONG QI YAJING JIANG HAI LU DAOHONG SONG LIQIN TANG zunlue zhu WUMING LIU YUFANG LIU School of Physics Henan Normal UniversityXinxiang 453007China MOE Key Laboratory of Weak-Light Nonlinear Photonics TEDA Applied Physics Institute and School of PhysicsNankai UniversityTianjin 300457China Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China Institute of Physics Henan Academy of SciencesZhengzhou 450046China

Higher-order exceptional points(EPs), which appear as multifold degeneracies in the spectra of non-Hermitian systems, are garnering extensive attention in various multidisciplinary fields. However, constructing higher-order EPs still remains a challenge due to the strict requirement of the system symmetries. Here we demonstrate that higher-order EPs can be judiciously fabricated in parity–time(PT)-symmetric staggered rhombic lattices by introducing not only on-site gain/loss but also non-Hermitian couplings. Zero-energy flatbands persist and symmetry-protected third-order EPs(EP3s) arise in these systems owing to the non-Hermitian chiral/sublattice symmetry, but distinct phase transitions and propagation dynamics occur. Specifically, the EP3 arises at the Brillouin zone(BZ) boundary in the presence of on-site gain/loss. The single-site excitations display an exponential power increase in the PT-broken phase. Meanwhile, a nearly flatband sustains when a small lattice perturbation is applied. For the lattices with non-Hermitian couplings, however, the EP3 appears at the BZ center. Quite remarkably, our analysis unveils a dynamical delocalization-localization transition for the excitation of the dispersive bands and a quartic power increase beyond the EP3. Our scheme provides a new platform toward the investigation of the higher-order EPs and can be further extended to the study of topological phase transitions or nonlinear processes associated with higher-order EPs.

关键词： exceptional protected symmetry

一种实用化实时测温系统优化设计中的几个问题

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光子学报 2005年第7期34卷 1103-1107页

作者：施德恒孙金锋刘玉芳朱遵略河南师范大学物理系

基于Kirchoff定律,利用半导体激光器及钽酸锂热电器件设计了一种实用化的实时测温系统.根据待测目标的光谱辐出度及相对测温灵敏度随λT的变化关系,确定了系统工作波长的大致范围;通过对水冷遮蔽板的尺寸及其放置位置与波长间的关系、... 详细信息

基于Kirchoff定律,利用半导体激光器及钽酸锂热电器件设计了一种实用化的实时测温系统.根据待测目标的光谱辐出度及相对测温灵敏度随λT的变化关系,确定了系统工作波长的大致范围;通过对水冷遮蔽板的尺寸及其放置位置与波长间的关系、以及对大气的红外透射谱等的分析,确定了系统的工作波长;按照水冷遮蔽板的尺寸及其放置位置(H/R之值)对测温精度的影响,讨论了水冷遮蔽板的H/R之值,并由此分析了系统的抗干扰能力及测温精度.指出了引起系统测温不确定度的5种主要原因,并对其中的2种进行了简要的分析.实验结果表明,该系统的测温精度优于0.3%.

关键词：应用光学温度测量辐射测温实时测量半导体激光器热释电探测器

Total cross sections of electron scattering by molecules NF3,PF3,N(CH3)3,P(CH3)3,NH(CH3)2,PH(CH3)2,NH2CH3 and PH2CH3 at 30-5000 eV

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Total cross sections of electron scattering by molecules NF3...

SiCl自由基X^2Π和A^2Σ^+态的光谱性质

第十五届全国原子与分子物理学术会议

作者： Deheng Shi,Yufang Liu,Jinfeng Sun,zunlue zhu College of Physics and Information Engineering,Henan Normal University,Xinxiang 453007,China

Total cross sections of electron scattering by eight molecules NF,PF,N(CH), P(CH),NH(CH),PH(CH),NHCH and PHCH in some structural similarities are calculated at the Hartree-Fork level by employing the modified additivity rule *** modified additivity rule approach takes into considerations that the contributions of the geometric shielding effect vary as the energy of incident electrons,the target’s molecular dimension,the number of electrons in the molecule and the number of atoms constituting the *** present investigations cover the impact energy range from 30 to 5000 *** quantitative total cross sections are compared with those obtained by experiments and other *** agreement is observed even at energies of several tens of *** shows that the modified additivity rule approach is applicable to carry out the total cross section calculations of electron scattering by these molecules at intermediate and high energies,in particular over the energy range above 80 eV or *** proves that the microscopic molecular properties,such as the geometrical size of the target and the number of atoms constituting the molecule,are of crucial importance in the TCS *** new results for PH(CH) and PHCH are also presented at energies from 30 to 5000 eV,although no experimental and theoretical data are available for *** the present calculations,the atoms are represented by the spherical complex optical potential,which is composed of static,exchange,polarization and absorption terms.

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计算物理 2015年第5期32卷 610-616页

作者：刘慧邢伟施德恒孙金锋朱遵略信阳师范学院物理电子工程学院信阳464000 河南师范大学物理与电子工程学院新乡453007

采用内收缩多参考组态相互作用(ic MRCI)方法结合Dunning等相关一致基,计算Si Cl自由基X2Π和A2Σ+态的势能曲线.讨论参考能和相关能外推对X2Π和A2Σ+态光谱的影响.对势能进行相对论修正及核价修正计算.拟合势能曲线得到X2Π和A2Σ+态... 详细信息

采用内收缩多参考组态相互作用(ic MRCI)方法结合Dunning等相关一致基,计算Si Cl自由基X2Π和A2Σ+态的势能曲线.讨论参考能和相关能外推对X2Π和A2Σ+态光谱的影响.对势能进行相对论修正及核价修正计算.拟合势能曲线得到X2Π和A2Σ+态的光谱常数.它们与实验结果一致.利用Breit-Pauli算符,计算旋轨耦合效应,得到X2Π1/2和X2Π3/2的势能曲线、并计算它们的光谱常数.求解双原子分子核运动的径向Schrdinger方程,获得无转动Si Cl自由基2个Λ-S态及X2Π态的耦合分裂态的全部振动态.得到J=0时X2Π态的自旋-轨道耦合常数、较高振动态的惯性转动常数以及X2Π1/2和X2Π3/2的振动能级等分子常数.

关键词：势能曲线光谱常数能量外推自旋-轨道耦合

New insight into the origin and evolution of the flora and fauna of Hainan Island, China

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Science China Earth Sciences 2025年第1期68卷 52-61页

作者： Hua zhu Center for Integrative Conservation Xishuangbanna Tropical Botanical Garden Chinese Academy of Sciences Yunnan International Joint Laboratory of Southeast Asia Biodiversity Conservation Yunnan Key Laboratory for the Conservation of Tropical Rainforests and Asian Elephants

The origin of the biota of Hainan Island, China, remains a fundamental scientific problem. Comparative studies on the biota, geological tectonics, and paleomagnetism proposed that during the Eocene, Hainan Island connected Vietnam and Guangxi, and then moved to the southeast to reach its present location. This review mainly discusses its biota origin from molecular phylogeny and palaeobotanical research. The formation and evolution of the biological groups of Hainan Island were identified via research on their genomes, phylogeny, and molecular biogeography. This research showed that the genera and species that appeared and diverged early in their evolution(i.e., before the Miocene) can be explained by the land connection between Hainan Island, Vietnam, and Guangxi during the Eocene-Oligocene. According to Southeast Asian tectonic theory, in the Middle Miocene(at about 15 million years ago), Hainan Island had moved to its present position. The population and genetic divergence of species with late divergence times(after 15 Ma) can be reasonably explained by the close proximity(or land connection) between Hainan Island and the Leizhou Peninsula, enabling genetic communication between Hainan Island and the Chinese mainland, but have exceptional cases. Conclusions have been obtained through palaeobotanical studies, showing that in the Eocene-Oligocene period, southwest China and Hainan Island had subtropical vegetation and flora. However, the fossil group in southeast China(in Maoming, near present-day Hainan Island) in the Late Eocene indicated a tropical rainforest vegetation and flora. This suggests that in the Paleogene, Hainan Island may have been located near or on the southwest border of Guangxi and northern Vietnam, rather than in its present location. The floristic division of the flora of Hainan Island basically presents a northeast-southwest inclined distribution pattern. This pattern can be explained by the counterclockwise rotation of Hainan Island during i

关键词： Molecular phylogeny Biogeography Paleobotany Origin of flora and fauna Hainan Island of China

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高校仪器设备管理的思考与实践

中国教育技术装备 2013年第18期 30-31页

作者：朱遵略杨宝丰河南师范大学实验室建设与设备管理处河南新乡453007 河南省教育技术装备管理中心郑州450004

在分析目前高校仪器设备特点及管理过程中普遍存在的意识淡漠、管理方式落后、使用效率低等问题的基础上,结合本单位的实际情况,提出相应的改革措施。实践证明,这些改革措施是行之有效的。

关键词：高校仪器设备管理

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Modification of Maxwell model for conductivity prediction of carbon nanotubes-filled polymer composites with tunneling effect

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 25-36页

作者： Jue zhu Longyuan LI Ningtao zhu Zhejiang Provincial Engineering Research Center for the Safety of Pressure Vessel and Pipeline Key Laboratory of Impact and Safety Engineering (Ningbo University) Ministry of Education School of Engineering Computing and Mathematics University of Plymouth Xi'an Zhanshi Testing & Engineering Co.Ltd.

Carbon nanotubes(CNTs) have garnered great attention in recent years due to their outstanding electrical, thermal, and mechanical properties. The incorporation of small amounts of CNTs in polymers can substantially improve the sensitivity of the polymer's electrical conductivity. This paper presents a modified Maxwell model to evaluate the electrical conductivity of CNTs-filled polymer composites by introducing a transition zone to account for the tunneling effect. In this modified Maxwell model, the CNTs-filled polymer composite is modeled as a three-phase composite, consisting of a matrix(polymer), inclusions(CNTs), and a transition zone(tunneling zone). The effective electrical conductivity(EEC) of the composite is calculated based on the volume fractions and electrical conductivities of the matrix, inclusions, and transition zone. The model's validity is confirmed through the use of available test data, which demonstrates its capability to accurately capture the nonlinear conductivity behavior observed in CNTs-polymer composites. This study offers valuable insights into the design of high-performance conductive polymer nanocomposites, and enhances the understanding of electrical conduction mechanisms in CNT-dispersed polymer composites.

关键词： Nanoclay

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AlO分子基态势能曲线的理论研究

河南师范大学学报（自然科学版） 2013年第3期41卷 68-70,78页

作者：寇素华刘艳郎建华张澍林朱遵略河南师范大学物理与电子工程学院河南新乡453007 河南师范大学计算机与信息工程学院河南新乡453007

采用完全活化空间自洽场(CASSCF)方法及内收缩多参考组态相互作用(MRCI)理论,对AlO分子基态(X2Σ+)的势能曲线进行了理论研究.在得到De,Re,ωe,ωeχe,Be,αe等光谱常数的基础上,通过求解分子核运动的径向Schrdinger方程,找到了J=0时... 详细信息

采用完全活化空间自洽场(CASSCF)方法及内收缩多参考组态相互作用(MRCI)理论,对AlO分子基态(X2Σ+)的势能曲线进行了理论研究.在得到De,Re,ωe,ωeχe,Be,αe等光谱常数的基础上,通过求解分子核运动的径向Schrdinger方程,找到了J=0时该分子基态存在的64个全部振动态.并第一次全面计算了每一振动态的振动能级、经典转折点、转动惯量Bυ和离心畸变常数Dυ与现有实验及其它理论相比较,本文的计算结果更为全面精确.

关键词： AlO 基态势能曲线振动能级