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Chinese Physics Letters 2001年第3期18卷 334-336页

作者： FANG Jian-Shu HAI Wen-Hua ZHANG Xi-Li Department of Physics Zhuzhou Teacher’s CollegeZhuzhou 412007 Department of Physics Hu’nan Normal UniversityChangsha 410081

We obtain a general unstable periodic solution near the homoclinic orbit of the Duffing oscillator with weak periodic perturbation by using the direct perturbation *** analysis reveals that the stable periodic orbits are embedded in the Melnikov chaotic *** corresponding numerical results show that fitting control parameters into the stability conditions can control chaos in the system,and the phase difference between the two sinusoidal forces added to the Duffing equation plays an important role in controlling chaos.

关键词： technique. periodic perturbation

Quantum control in a double-well with symmetric or asymmetric driving

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Quantum control in a double-well with symmetric or asymmetri...

Exact Vortex Clusters of Two-Dimensional Quantum Fluid with Harmonic Confinement

第十五届全国原子与分子物理学术会议

作者：鲁耿彪海文华钟红华湖南师范大学物理系

We investigate the coherent control of a single particle held in a quartic double-well with asymmetric or asymmetric driving and exhibit time-evolutions of relative probability of the particle in one of the double-well *** is shown analytically and numerically that the coherent destruction of tunneling could occur only for the symmetric intense driving,and application of the asymmetric sawtooth driving leads to increase of the tunneling *** results agree with the recent experimental data reported by ***.[***.100,190405(2008)].We also exhibit the effect of multiple photon resonances on the tunneling,through a dc ***,we demonstrate a connection between classical chaos and the quantum tunneling numerically.

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Chinese Physics Letters 2013年第4期30卷 14-17页

作者： CHONG Gui-Shu ZHANG Ling-Ling HAI Wen-Hua School of Physics and Microelectronics Hunan UniversityChangsha 410082 Department of Physics and Key Laboratory of Low-Dimensional Quantum Structure and Quantum Control of Ministry of Education Hunan Normal UniversityChangsha 410081

A family of exact analytical solutions of vortices in quantum fluid governed by a two-dimensional time-dependent Schr?dinger equation is presented,which describes different kinds of vortex *** dynamics of different vortex clusters,such as the single vortex,vortex pair,vortex dipole and vortex trimer in a two-dimensional quantum fluid are analytically studied based on these exact *** time evolutions of the wave of such vortices are demonstrated,and the orbits of motion of singular points in the vortices are also *** interactions of vortices in many-vortex clusters are discussed.A repulsive interaction between vortices with the same topological charge,and inter-annihilation and inter-creation of vortices with opposite topological charge,are shown.

关键词： vortex exact topological

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ICU患者需要CVP监测

人人健康 2017年第1期 30-30页

作者：海文华兰州石化总医院

目的:研究CVP监测对ICU患者治疗的影响。方法:随机选取100例ICU患者为样本对象,对样本采取CVP监测,观察其病情发展。结果:样本患者接受CVP监测治疗后,病情治疗有效率显著提升,比未采取CVP监测前,治疗有效率提升15%。结论:对ICU患者提供... 详细信息

目的:研究CVP监测对ICU患者治疗的影响。方法:随机选取100例ICU患者为样本对象,对样本采取CVP监测,观察其病情发展。结果:样本患者接受CVP监测治疗后,病情治疗有效率显著提升,比未采取CVP监测前,治疗有效率提升15%。结论:对ICU患者提供CVP监测治疗后,能够及时掌握患者并发症和不良反应,科学评估其心负荷量和血容量,患者病情治疗效果显著提升,故CVP监测技术应在临床中予以积极推广。

关键词： ICU患者 CVP监测效果

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浅析计算机辅助教学在小学数学教学中的应用

新课程学习 2013年第7期 143-143页

作者：海文华四川省盐源县白乌小学

随着信息化的不断发展，计算机已全面应用于教育领域，通过计算机的辅助教学来营造良好的学〉--j氛围，从而提高教学质量。因此，怎样制作课件以及如何正确将计算机辅助教学应用于小学数学教学之中是分析的重点。

关键词：小学数学计算机教学问题辅助教学

Nonlinear atomic population oscillations in coupled Bose-Einstein condensates

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Nonlinear atomic population oscillations in coupled Bose-Ein...

Manipulating transition of a two-component Bose–Einstein condensate with a weak δ-shaped laser

湖北省物理学会、武汉物理学会成立70周年庆典暨2002年学术年会

作者：李朝红海文华朱熙文施磊高克林 Laboratory of Magnetic Resonance and Atomic and Molecular Physics Wuhan Institute of Physics and Mathematics The Chinese Academy of Sciences Wuhan 430071 People's Republic of China Laboratory of Magnetic Resonance and Atomic and Molecular Physics Wuhan Institute of Physics and Mathematics The Chinese Academy of Sciences Wuhan 430071 People's Republic of China Laboratory of Magnetic Resonance and Atomic and Molecular Physics Wuhan Institute of Physics and Mathematics The Chinese Academy of Sciences Wuhan 430071 People's Republic of China Laboratory of Magnetic Resonance and Atomic and Molecular Physics Wuhan Institute of Physics and Mathematics The Chinese Academy of Sciences Wuhan 430071 People's Republic of China Laboratory of Magnetic Resonance and Atomic and Molecular Physics Wuhan Institute of Physics and Mathematics The Chinese Academy of Sciences Wuhan 430071 People's Republic of China

Josephson effect, both interference and tunneling dynamics, of coupled Bose-Einstein condensates (BEC) is one of hotspots in the field of BEC. There exists two different types, external and internal Josephson effects. The former has two spatially separated single-particle states, and the latter has two hyperfine internal states. Both of them have been observed experimentally [1,2]. For the time-independent potential and physical parameters, the macroscopic quantum self-trapping (MQST) and the π-phase oscillations were detailed [3]. For the time-dependent potential or physical parameters, chaotic population

关键词： Nonlinear atomic population oscillations in coupled Bose-Einstein condensates

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Chinese Physics B 2019年第10期28卷 263-268页

作者： Bo Li Xiao-Jun Jiang Xiao-Lin Li Wen-Hua Hai Yu-Zhu Wang Key Laboratory for Quantum Optics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800China University of Chinese Academy of Sciences Beijing 100049China Department of Physics and Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education Hunan Normal UniversityChangsha 410081China

We theoretically study the transition dynamics of a two-component Bose-Einstein condensate driven by a train of weak δ-shaped laser pulses. We find that the atomic system can experience peculiar resonant transition even under weak optical excitations and derive the resonance condition by the perturbation method. Employing this mechanism, we propose a scheme to obtain an atomic ensemble with desired odd/even atom number and also a scheme to prepare a nonclassical state of the many-body system with fixed atom number.

关键词： two-component Bose-Einstein condensate quantum kicked top model nonclassical state

Variational-Integral Perturbation Corrections for Hydrogen Atoms in Magnetic Fields

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Chinese Physics Letters 2013年第1期30卷 56-60页

作者： ZHAO Yun-Hui PAN Yi-Qing LI Wen-Juan DENG Xia HAI Wen-Hua Department of Primary Education Changsha Normal CollegeChangsha 410100 Department of Physics Hunan Normal UniversityChangsha 410082

A variational-integral perturbation method(VIPM)has been established by combining the variational perturbation with the integral *** present the results obtained by the application of VIPM to the ground and excited states associated with the Zeeman effect on a hydrogen *** construct correction wave functions and calculate energy corrections for the ground state and some high excited *** values are compared with results of Smith and Jason et al.;our results are more accurate than those from Smith and Jason,especially in the 4f excited state where we find a very interesting result that when magnetic fields increase,the energy level trap appears.

关键词： perturbation. states. excited

不同宿主来源产气荚膜梭菌生物被膜形成前后药物敏感性分析

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动物医学进展 2025年第1期46卷 38-42页

作者：吴莹邵长军刘文华青岛农业大学动物医学院山东青岛266109 烟台市农科院山东烟台264200

为了检测5株不同宿主来源产气荚膜梭菌形成生物被膜能力及其对抗菌药物的敏感性差异,首先用纸片扩散法药敏试验测定5株不同来源的产气荚膜梭菌对7种抗菌药物的敏感性;筛选高敏药物测定各菌株的最小抑菌浓度(MIC);利用结晶紫染色法检测... 详细信息

为了检测5株不同宿主来源产气荚膜梭菌形成生物被膜能力及其对抗菌药物的敏感性差异,首先用纸片扩散法药敏试验测定5株不同来源的产气荚膜梭菌对7种抗菌药物的敏感性;筛选高敏药物测定各菌株的最小抑菌浓度(MIC);利用结晶紫染色法检测不同来源产气荚膜梭菌生物被膜形成能力和高敏药物对生物被膜的抑制和清除能力。药敏结果显示,5株不同宿主来源产气荚膜梭菌均对氨苄西林高度敏感,对其余6种抗菌药物有不同程度耐药;氨苄西林对不同菌株的MIC值在0.031~2.000μg/mL之间;所有菌株均能生成生物被膜,但生物被膜生成能力有差异;不同菌株在各自4、2、1 MIC下生物被膜的生成受到不同程度抑制,而亚抑菌浓度的氨苄西林能刺激生物被膜的生成,氨苄西林对已经生成的生物被膜不能完全清除。结果表明,不同来源产气荚膜梭菌形成生物被膜前后对药物敏感性不同,可为产气荚膜梭菌的临床用药选择及使用剂量提供一定的参考依据。

关键词：产气荚膜梭菌生物被膜最小抑菌浓度耐药性