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Experimental　Investigation　of　the　Nonlinear　Coupling　Strength　of　a　Photorefractive　Crystal

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Chinese Journal of Lasers 1995年第1期B4卷 81-86页

作者： WANG Jiayou LI Xiaochung guo siji SHI Sunxiang(Department of Applied Physics,Xidian University,Xian 710071,China) Xidian Univ Xi'an China

ＥｘｐｅｒｉｍｅｎｔａｌＩｎｖｅｓｔｉｇａｔｉｏｎｏｆｔｈｅＮｏｎｌｉｎｅａｒＣｏｕｐｌｉｎｇＳｔｒｅｎｇｔｈｏｆａＰｈｏｔｏｒｅｆｒａｃｔｉｖｅＣｒｙｓｔａｌＥｘｐｅｒｉｍｅｎｔａｌＩｎｖｅｓｔｉｇａｔｉｏｎｏｆｔ... 详细信息

ＥｘｐｅｒｉｍｅｎｔａｌＩｎｖｅｓｔｉｇａｔｉｏｎｏｆｔｈｅＮｏｎｌｉｎｅａｒＣｏｕｐｌｉｎｇＳｔｒｅｎｇｔｈｏｆａＰｈｏｔｏｒｅｆｒａｃｔｉｖｅＣｒｙｓｔａｌＥｘｐｅｒｉｍｅｎｔａｌＩｎｖｅｓｔｉｇａｔｉｏｎｏｆｔｈｅＮｏｎｌｉｎｅａｒＣｏｕｐｌｉ...

关键词： photorefractive erystal nonlinear coupling strength

Emerging strategies for nerve repair and regeneration in ischemic stroke:neural stem cell therapy

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Neural Regeneration Research 2024年第11期19卷 2430-2443页

作者： siji Wang Qianyan He Yang Qu Wenjing Yin Ruoyu Zhao Xuyutian Wang Yi Yang Zhen-Ni guo Stroke Center Department of Neurologythe First Hospital of Jilin UniversityChangchunJilin ProvinceChina Neuroscience Research Center Department of Neurologythe First Hospital of Jilin UniversityChangchunJilin ProvinceChina Department of Breast Surgery General Surgery Centerthe First Hospital of Jilin UniversityChangchunJilin ProvinceChina

Ischemic stroke is a major cause of mortality and disability worldwide,with limited treatment options available in clinical *** emergence of stem cell therapy has provided new hope to the field of stroke treatment via the restoration of brain neuron *** neural stem cells are beneficial not only in cell replacement but also through the bystander *** stem cells regulate multiple physiological responses,including nerve repair,endogenous regeneration,immune function,and blood-brain barrier permeability,through the secretion of bioactive substances,including extracellular vesicles/***,due to the complex microenvironment of ischemic cerebrovascular events and the low survival rate of neural stem cells following transplantation,limitations in the treatment effect remain *** this paper,we provide a detailed summary of the potential mechanisms of neural stem cell therapy for the treatment of ischemic stroke,review current neural stem cell therapeutic strategies and clinical trial results,and summarize the latest advancements in neural stem cell engineering to improve the survival rate of neural stem *** hope that this review could help provide insight into the therapeutic potential of neural stem cells and guide future scientific endeavors on neural stem cells.

关键词： bystander effect cell replacement extracellular vesicles ischemic stroke neural stem cells neural stem cell engineering

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互泵浦相位共轭器的阈值耦合强度的分析

光学学报 1995年第8期15卷 1014-1018页

作者： guo siji Li Xiaochun Wang Jieyou (Department of Applied Physics, Xidan University, Xian 710071) 西安电子科技大学技术物理系

从理论上计算具有两个作用区的互泵浦相位区轭器的阈值耦合强度（γＬ）ｔｈ，给出了（γＬ）ｔｈ与输入光强比ｑ、光折变晶体内部通道强度传输系数Ｔｔ；的规律。

关键词：互泵浦相位共轭阈值耦合强度四波混频

Innovations in metallurgical and materials processes:advancing liquid theory and honoring ***-jie guo's contributions to physical chemistry in metallurgy

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Journal of Iron and Steel Research International 2024年第1期31卷 1-2页

作者： Shuai Liu Jing guo Han-jie guo School of Artificial Intelligence Beijing Technology and Business UniversityBeijing100048China School of Metallurgical and Ecological Engineering University of Science and Technology Beijing(USTB)Beijing100083China

Spanning three decades,***-jie guo's research group has dedicated itself to exploring the fundamental theories and practical applications of physical chemistry within the realm of *** under the assumption that molecul... 详细信息

关键词： chemistry liquid complexes

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Blumlein型高效率微带光导开关研究

中国激光 1996年第11期23卷 995-1000页

作者：鲍吉龙许长存石顺祥过已吉西安电子科技大学技术物理系河海大学常州分校电子系

提出了一种高效率Ｂｌｕｍｌｅｉｎ型微带光导开关电路．并从理论上分析了该光导开关电路的输出特性和不同光功率激励下的工作特点．分析指出这种光导开关具有１００％的电压转换效率。实验结果得到了９３％的电压转换效率．和理论分析... 详细信息

提出了一种高效率Ｂｌｕｍｌｅｉｎ型微带光导开关电路．并从理论上分析了该光导开关电路的输出特性和不同光功率激励下的工作特点．分析指出这种光导开关具有１００％的电压转换效率。实验结果得到了９３％的电压转换效率．和理论分析结果相吻合。

关键词：光导开关超短脉冲开关电路 Blumlein型

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四波混频用于振幅编码

光学学报 1987年第1期7卷 92-96页

作者：过巳吉曾小东西北电讯工程学院技术物理系

本文讨论了瞬态四波混频用于光振幅编码的可行性,给出了一种较好的求解耦合方程的数值方法。结果表明,四波混频系统可以构成一种高速编码变换器,为超短脉冲的高速编码提供了一种新手段。

关键词：泵浦光耦合方程时间域编码变换四波混频光频转换信号光振幅包络

Emerging direct current triboelectric nanogenerator for high-entropy mechanical energy harvesting

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Science China(Technological Sciences) 2024年第5期67卷 1297-1316页

作者： CHEN Jie guo RuiLong guo HengYu College of Physics and Electronic Engineering Chongqing Normal UniversityChongqing 401331China Department of Applied Physics Chongqing UniversityChongqing 401331China

In the era of the Internet of Things(IoT),the provision of sustainable power to distributed,mobile,and low-power-consumption electronic devices is a critical *** overcome this challenge,the triboelectric nanogenerator(TENG),a highly efficient high-entropy mechanical energy harvesting device,was developed in *** device enables the direct conversion of irregular and low-frequency mechanical energy into pulsed alternating current(AC)***,the incompatibility of most electronic devices with AC signals necessitates rectifier circuits or generators that deliver direct current(DC)*** recent years,DC-TENGs have undergone extensive development,achieving significant milestones in various application fields while also facing crucial challenges that require *** this review,three categories of DC-TENG devices with distinct operating mechanisms are comprehensively explored:multiphase coupling,mechanical rectification,and air *** typical structures and working mechanisms are thoroughly discussed,and specific output performance limitations,along with corresponding optimization strategies,are ***,the applications of DC-TENGs in various scenarios are ***,the challenges faced by DC-TENGs and potential solutions are analyzed to guide further advancements in this technology.

关键词： TENG direct current working mechanisms output performance limitations optimization strategies

Physicochemical principles of hydrogen metallurgy in blast furnace

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Journal of Iron and Steel Research International 2024年第1期31卷 46-63页

作者： Han-jie guo School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing100083China Beijing Key Laboratory of Special Melting and Preparation of High-End Metal Materials Beijing100083China

Based on the stoichiometric method and the free energy minimization method,an ideal model for the reduction of iron oxides by carbon and hydrogen under blast furnace conditions was established,and the reduction efficiency and theoretical energy consumption of the all-carbon blast furnace and the hydrogen-rich blast furnace were *** results show that after the reduction reaction is completed at the bottom of the blast furnace,the gas produced by reduction at 1600℃still has a certain excessive reduction capacity,which is due to the hydrogen brought in by the hydrogen-rich blast as well as the excess carbon monoxide generated by the reaction of the coke and the oxygen brought in by the *** the process of the gas with excessive reduction capacity rising from the bottom of the blast furnace and gas reduction process,the excessive reduction capacity of the gas gradually decreases with the increase in the dydrogen content in the *** the all-carbon blast furnace,the excess gas reduction capacity is the strongest,and the total energy consumption per ton of iron reduction is the *** shows that,for the current operation mode of the blast furnace,adding hydrogen in the blast furnace cannot reduce the consumption of carbon required for reduction per ton of iron,but rather increases the consumption of carbon.

关键词： Hydrogen metallurgy Excess gas reduction capacity Theoretical energy consumption Hydrogen-rich blast furnace Thermodynamic model Gibbs minimum free energy method

Control Strategies for Digital Twin Systems

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IEEE/CAA Journal of Automatica Sinica 2024年第1期11卷 170-180页

作者： guo-Ping Liu IEEE the Center for Control Science and Technology Southern University of Science and TechnologyShenzhen 518055China

With the continuous breakthrough in information technology and its integration into practical applications, industrial digital twins are expected to accelerate their development in the near future. This paper studies various control strategies for digital twin systems from the viewpoint of practical *** make full use of advantages of digital twins for control systems, an architecture of digital twin control systems, adaptive model tracking scheme, performance prediction scheme, performance retention scheme, and fault tolerant control scheme are proposed. Those schemes are detailed to deal with different issues on model tracking, performance prediction, performance retention, and fault tolerant control of digital twin systems. Also, the stability of digital twin control systems is analysed. The proposed schemes for digital twin control systems are illustrated by examples.

关键词： Digital twin control systems fault tolerant control model tracking performance prediction performance retention