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吉林大学学报（理学版） 2019年第5期57卷 1135-1137页

作者：郭怀文陈全国曲阜师范大学数学科学学院

利用结合子的形变方法,考虑偏Hom-模代数的整体化问题,证明每个偏Hom-模代数均有一个整体化.

关键词： monoidal Hom-Hopf代数 Hom-模代数整体化

Efficient fifth harmonic generation of Nd:glass laser in ADP crystals

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Chinese Optics Letters 2019年第12期17卷 53-58页

作者： Fang Wang Xuewei Deng Liquan Wang Fuquan Li Wei Han Wei Zhou Xiaoxia Huang huaiwen guo Qihua Zhu Research Center of Laser Fusion China Academy of Engineering PhysicsMianyang 621999China

Fifth harmonic generation(5th HG) of a Nd:glass laser is an effective way to acquire high-energy coherent deepultraviolet radiation near 200 nm. In this work, cascade generation of the fifth harmonic of a Nd:glass laser in a 5 mm ammonium dihydrogen phosphate(ADP) crystal was investigated, and maximum conversion efficiency of 14% and large angular acceptance of 45 mrad were demonstrated at a noncritical phase-matching temperature of-75.1°C. However, as the results reveal, the temperature sensitivity and nonlinear absorption would hinder its high-energy application. As for that, based on the complementary relationship of the angle and temperature in the phase-matching condition, an upgraded focusing 5th HG design coupled with the cylindrical temperature distribution scheme was proposed. By this upgraded focusing design, more than the improvement of the conversion efficiency, the output 5ω near-field intensity distribution turns out to be insensitive to the temperature gradient. Potentially, this idea can be applied for many other frequency conversion schemes such as high-repetition frequency lasers, which have similar temperature gradient problems.

关键词： harmonic glass matching

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福建三明地区森林火险区划

东北林业大学学报 2012年第11期40卷 70-73页

作者：郭怀文刘晓东邱美林省部共建森林培育与保护教育部重点实验室(北京林业大学) 北京100083 福建三明市林业局

根据三明地区2000—2009年的林火数据,选取平均单次火灾过火面积、平均单位面积林火发生次数、平均单位面积损失蓄积量、森林活蓄积量4个因子,运用聚类分析方法对三明地区11个区县(梅列区和三元区统称市区)林火情况进行了划分,最终得到... 详细信息

根据三明地区2000—2009年的林火数据,选取平均单次火灾过火面积、平均单位面积林火发生次数、平均单位面积损失蓄积量、森林活蓄积量4个因子,运用聚类分析方法对三明地区11个区县(梅列区和三元区统称市区)林火情况进行了划分,最终得到四类区划:一级火险区为大田县,占总面积10%;二级火险区为尤溪县,占总面积15%;三级火险区包括建宁、泰宁、清流、宁化、沙县,占总面积40%;四级火险区包括将乐、明溪、永安、市区,占总面积的35%。根据各类区划结果绘制了森林火险区划图,并分析了不同火险区林火预防和扑救情况,提出了预防和扑救对策。

关键词：森林火灾聚类分析火险区划预防与扑救

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大型激光装置脉冲波形调控技术

强激光与粒子束 2023年第8期35卷 45-49页

作者：黄小霞赵博望郭怀文周维张波田小程张崑中国工程物理研究院激光聚变研究中心四川绵阳621900

精密高效的脉冲波形调控是大型激光装置满足惯性约束聚变实验需求的重要技术之一。脉冲波形生成原理是通过编辑任意波形发生器中每个子脉冲的电压值,经电光调制器转换为光脉冲强度形成任意形状的激光脉冲轮廓。在电光转换过程中,各子束... 详细信息

精密高效的脉冲波形调控是大型激光装置满足惯性约束聚变实验需求的重要技术之一。脉冲波形生成原理是通过编辑任意波形发生器中每个子脉冲的电压值,经电光调制器转换为光脉冲强度形成任意形状的激光脉冲轮廓。在电光转换过程中,各子束响应过程并非线性且子束间存在个性差异。为实现此条件下精密高效的脉冲波形调控,制定并开发了基于闭环迭代思路的激光脉冲波形快速调控方法。实验结果表明,算法可在10 min内实现任意脉冲波形整形,并具备23∶1高对比度脉冲波形调控能力,调控精度均优于10%(rms),满足常规物理实验运行条件下对激光参数调控的精度和效率需求。

关键词：高功率激光装置脉冲整形迭代算法

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偏Hom-模余代数的整体化

曲阜师范大学学报（自然科学版） 2020年第1期46卷 1-3页

作者：成文静郭怀文陈全国曲阜师范大学数学科学学院

通过引入偏Hom-模余代数概念,并考虑了其上的整体化问题,证明了每个偏Hom-模余代数都具有一个整体化.

关键词： monoidal Hom-Hopf代数 Hom-模余代数整体化

Reducing the measurement errors in nonadiabatic holonomic quantum computers

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 64-70页

作者： guo-Fu Xu Department of Physics Shandong University

Nonadiabatic holonomic quantum computers serve as the physical platform for nonadiabatic holonomic quantum *** quantum computation has entered the noisy intermediate-scale era, building accurate intermediate-scale nonadiabatic holonomic quantum computers is clearly necessary. Given that measurements are the sole means of extracting information, they play an indispensable role in nonadiabatic holonomic quantum computers. Accordingly, developing methods to reduce measurement errors in nonadiabatic holonomic quantum computers is of great importance. However, while much attention has been given to the research on nonadiabatic holonomic gates, the research on reducing measurement errors in nonadiabatic holonomic quantum computers is severely lacking. In this study, we propose a measurement error reduction method tailored for intermediate-scale nonadiabatic holonomic quantum computers. The reason we say this is because our method can not only reduce the measurement errors in the computer but also be useful in mitigating errors originating from nonadiabatic holonomic gates. Given these features,our method significantly advances the construction of accurate intermediate-scale nonadiabatic holonomic quantum computers.

关键词： quantum holonomy quantum computation measurement errors

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晶体面形畸变对三倍频转换效率的影响

强激光与粒子束 2020年第6期32卷 8-14页

作者：郭怀文周维叶朗独伟峰谭宁邓学伟黄小霞赵博望钟伟王芳中国工程物理研究院激光聚变研究中心四川绵阳621900

在惯性约束聚变(ICF)领域,为了满足物理实验需求,需要采用短波长的紫外激光打靶。目前,国内外高功率固体激光装置普遍采用谐波转换的方式来获得三倍频紫外激光。高效的频率转换必须满足相位匹配条件,而晶体的反射面形畸变过大对准直精... 详细信息

在惯性约束聚变(ICF)领域,为了满足物理实验需求,需要采用短波长的紫外激光打靶。目前,国内外高功率固体激光装置普遍采用谐波转换的方式来获得三倍频紫外激光。高效的频率转换必须满足相位匹配条件,而晶体的反射面形畸变过大对准直精度和倍频效率均匀性都会产生不利影响。通过实验验证了晶体准直光斑的质量退化主要来源于晶体因夹持和重力导致的反射面形畸变,证明了改进晶体的夹持方式可以有效改善晶体面形,提高准直精度和准直光斑质量,并显著提升三倍频转换效率。

关键词：高功率激光装置 KDP晶体相位匹配角度失谐波前畸变面形畸变三倍频效率

Bandgap characteristics analysis and graded design of a novel metamaterial for flexural wave suppression

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 1-24页

作者： Fan YANG Zhaoyang MA Xingming guo Shanghai Key Laboratory of Mechanics in Energy Engineering Shanghai Institute of Applied Mathematics and Mechanics School of Mechanics and Engineering ScienceShanghai University Shanghai Institute of Aircraft Mechanics and Control

A novel elastic metamaterial is proposed with the aim of achieving lowfrequency broad bandgaps and bandgap regulation. The band structure of the proposed metamaterial is calculated based on the Floquet-Bloch theorem, and the boundary modes of each bandgap are analyzed to understand the effects of each component of the unit cell on the bandgap formation. It is found that the metamaterials with a low elastic modulus of ligaments can generate flexural wave bandgaps below 300 Hz. Multi-frequency vibrations can be suppressed through the selective manipulation of bandgaps. The dual-graded design of metamaterials that can significantly improve the bandgap width is proposed based on parametric studies. A new way that can regulate the bandgap is revealed by studying the graded elastic modulus in the substrate. The results demonstrate that the nonlinear gradient of the elastic modulus in the substrate offers better bandgap performance. Based on these analyses, the proposed elastic metamaterials can pave the way for multi-frequency vibration control, low-frequency bandgap broadening, and bandgap tuning.

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Asking one mechanism in glial cells during neuroinflammation

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Neural Regeneration Research 2025年第4期20卷 1077-1078页

作者： Xiaoli guo Chikako Harada Takayuki Harada Visual Research Project Tokyo Metropolitan Institute of Medical ScienceTokyoJapan

Multiple sclerosis(MS),which is characterized by inflammatory demyelination in the central nervous system(CNS),is the most common neurological disease in the young adult *** autoimmune encephalomyelitis(EAE),an animal model of MS,is often used in preclinical *** data indicate that in addition to immune cells such as T cells and dendritic cells,CNS resident microglia and astrocytes play important roles in demyelinating neuroinflammation(Healy et al.,2022).In particular,microglia are key immune-competent cells that can respond to environmental *** depletion of transforming growth factor-β-activated kinase 1,a mitogen-associated protein kinase kinase kinase,in microglia is reported to reduce CNS inflammation and diminish axonal and myelin damage *** suggests that elucidating the mechanisms of microglia-specific responses during pathologies may help in the development of treatments that reduce EAE/MS disease severity(Goldmann et al.,2013).

关键词： inflammation clinical

Monogenic gene therapy for glaucoma and optic nerve injury

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Neural Regeneration Research 2025年第3期20卷 815-816页

作者： Chikako Harada Xiaoli guo Takayuki Harada Visual Research Project Tokyo Metropolitan Institute of Medical ScienceTokyoJapan

The prevalence of glaucoma, the second leading cause of global blindness, is increasing due to aging populations. In glaucoma, degeneration of the optic nerve and retinal ganglion cells(RGCs) causes visual field defec... 详细信息

关键词： visual glaucoma degeneration