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Chinese Chemical Letters 2020年第10期31卷 2725-2729页

作者： Zishu Zhang Ying Gao Peng Li Binhong Qu Zhiyuan Mu Yang Liu Yang Qu degui kong Qing Chang Liqiang Jing College of Electronic Engineering Heilongjiang UniversityHarbin 150080China Key Laboratory of Functional Inorganic Materials Chemistry(Ministry of Education) International Joint Research Center for Catalytic TechnologySchool of Chemistry and Materials ScienceHeilongjiang UniversityHarbin 150080China College of Physical Science and Technology Heilongjiang UniversityHarbin 150080China College of Media Engineering Communication University of ZhejiangHangzhou 310018China

The porous g-C_(3)N_(4)(PCN)nanosheets are successfully synthesized and further modified with nano-sized Ag by a simple wet-chemical *** stingly,the Ag-modified porous g-C_(3)N_(4)(Ag-PCN)nanosheets exhibit competitive fluorescence detection performance of chloride ion(Cl)in aqueous solutio *** the optimized conditions,the concentration of Cl could be quantitative analyzed with the Ag-PCN in a wide detection range from 0.5 mmol/L to 0.1 mol/L,with a low detection limitation of 0.06 mmol/*** is confirmed that the fluorescence of PCN could be effectively decayed by the photoinduced charge transfer via the adsorbed Cl for trapping holes,mainly by means of the time-resolved fluorescence and surface photo voltage *** porous structure and modified Ag promote the adsorption of Cl on resulting Ag-PCN,leading to excellent fluorescence detection for *** work provides a feasible route to develop a fluorescence detection of Cl with g-C_(3)N_(4) nanosheets in environment water.

关键词： g-C_(3)N_(4) Ag-modification Chloride ion Fluorescence detection Photoinduced charge transfer

Subwavelength metal structures with tunable transmission characteristics by light

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Chinese Optics Letters 2019年第12期17卷 73-76页

作者： Zehua Yang Jing Han Wenzhi Wu degui kong Yachen Gao College of Electronic Engineering Heilongjiang UniversityHarbin 150080China

Extraordinary optical transmission(EOT)in subwavelength metal structures has been studied ***,we propose a strategy for tuning the EOT of the bullseye ***,the bullseye structure was immersed in a nonlinear medium,and a controlling light was employed to change the refractive index of the *** different intensities and distributions of controlling light,the transmission property of signal light in the bullseye structure was *** results show that a variable transmission spectrum in the bullseye structure can be ***,the position of the central transmission peak shifts linearly with the increasing intensity of controlling light.

关键词： tunable tuning light

CdTe和CdTe/CdS量子点的量子尺寸效应

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红外与激光工程 2017年第12期46卷 72-77页

作者：常存高莹孔德贵张东帅常青黑龙江大学电子工程学院黑龙江哈尔滨150080

利用水热法合成了三种不同尺寸的单核Cd Te量子点和核壳Cd Te/Cd S量子点。应用Tophat Z-scan技术在纳秒、皮秒、飞秒激光脉冲作用下研究了三种不同尺寸单核Cd Te量子点的非线性吸收特性。实验结果表明:在不同激光脉冲作用下三种不同尺... 详细信息

利用水热法合成了三种不同尺寸的单核Cd Te量子点和核壳Cd Te/Cd S量子点。应用Tophat Z-scan技术在纳秒、皮秒、飞秒激光脉冲作用下研究了三种不同尺寸单核Cd Te量子点的非线性吸收特性。实验结果表明:在不同激光脉冲作用下三种不同尺寸的Cd Te量子点的非线性吸收特性均表现为饱和吸收,并且均呈现出随着量子点尺寸的减小,其非线性吸收特性增大的趋势。为了进一步研究量子点尺寸的变化对非线性吸收特性的影响,又在飞秒激光脉冲作用下研究了核壳Cd Te/Cd S量子点的非线性吸收特性;随着包壳时间的增加,壳层厚度增加,量子点尺寸增加,其非线性吸收特性呈减小趋势,并且核壳Cd Te/Cd S量子点的非线性吸收特性明显优于单核Cd Te量子点;分析讨论了单核Cd Te量子点与核壳Cd Te/Cd S量子点的非线性吸收特性和量子尺寸效应机制,实验结果表明合成的量子点样品均具有良好的量子尺寸效应。

关键词：量子点非线性吸收 Top—hat Z扫描量子尺寸效应

中心金属原子对萘酞菁化合物激发态的光学非线性增强效应(英文)

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红外与激光工程 2015年第2期44卷 466-470页

作者：常青常存孔德贵高亚臣高美玲黑龙江大学电子工程学院黑龙江哈尔滨150080

应用Z-扫描技术对比研究了萘酞菁铅和萘酞菁钯化合物在波长为532 nm纳秒激光脉冲作用下的三阶非线光学特性。实验结果表明,两种萘酞菁化合物均显现出较强的非线性吸收特性(反饱和吸收)和非线性折射特性(自聚焦)。理论拟合得出萘酞菁铅... 详细信息

应用Z-扫描技术对比研究了萘酞菁铅和萘酞菁钯化合物在波长为532 nm纳秒激光脉冲作用下的三阶非线光学特性。实验结果表明,两种萘酞菁化合物均显现出较强的非线性吸收特性(反饱和吸收)和非线性折射特性(自聚焦)。理论拟合得出萘酞菁铅和萘酞菁钯的非线性吸收系数β分别为6.54×10-10m/W和3.90×10-10 m/W;非线性折射系数率n2分别为1.68×10-10 esu和8.04×10-11 esu;二阶分子超极化率系数γ分别为3.44×10-28 esu和2.57×10-28 esu,CS2二阶分子超极化率系数为4.32×10-33esu;两种萘酞菁化合物的二阶分子超极化率强于CS2近5个数量级。实验结果表明,萘酞菁铅化合物具有较强的非线性吸收和非线性折射特性,且大于萘酞菁钯化合物的光学非线性特性是由于萘酞菁铅化合物的重原子效应提高了其光学非线性特性。

关键词：三阶光学非线性萘酞菁重原子效应

Micro-strain regulation strategy to stabilize perovskite lattice based on the categories and impact of strain on perovskite solar cells

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Journal of Energy Chemistry 2025年第1期100卷 578-604页

作者： Caixia Li Wenwu Liu Shiji Da Lingbin kong Fen Ran State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals Lanzhou University of Technology School of Materials Science and Engineering Lanzhou University of Technology

Photovoltaic metal halide perovskite solar cells(PSCs) convert light to electricity more efficiently than crystalline silicon cells, and the cost of materials used to make them is lower than that of silicon *** efficiency is not a core issue affecting the application of perovskite solar cells in special *** present, stability is the major technical encounters that hinders its further commercial development. Microstrain in PSCs is currently a significant factor responsible for the device's instability. Strain-induced ion migration is widely believed to accelerate perovskite degradation even when external stimuli are ***, it is imperative to study strain to enhance the stability of PSCs. This paper reviews recent developments to understand strain's origin and effect mechanisms on performance of PSCs, including ion migration,failure behavior, defect formation, and its effect on photoelectric properties, stability, and ***, several well-known strain management strategies are systematically introduced based on the strain effect mechanism and strain engineering on the film, providing more clues for further preparation with increased stability. The manipulation of external physical strain applied from films to entire devices has been extensively studied. Furthermore, recommendations for future research directions and chemical approaches have been provided. It is emphasized that strain engineering plays a crucial role in improving the efficiency and longevity of PSCs. Tensile strain causes rapid degradation, while moderate compressive strain and external strain control could improve properties and stability. Efforts should focus on controlling compressive strain to mitigate residual tensile strain and introducing it in a controlled manner. Future research endeavors may focus on exploring these pathways to improve the efficiency and lifespan of PSCs.

关键词： Halide perovskite solar cells Strain origins Strain effects Strain management

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一种优化的灰狼算法

黑龙江大学自然科学学报 2022年第2期39卷 238-245页

作者：杨寒石吴皓月孔德贵黑龙江大学电子工程学院哈尔滨150080 黑龙江大学计算机科学技术学院哈尔滨150080

针对传统灰狼算法存在局部开发能力弱、早熟收敛以及初始种群分布不均匀等缺点,优化了传统灰狼算法。采用Cat混沌映射和反向学习初始化种群,增加初始种群的多样性和均匀性;在灰狼位置更新方面结合了粒子群算法的个体位置更新策略的优势... 详细信息

针对传统灰狼算法存在局部开发能力弱、早熟收敛以及初始种群分布不均匀等缺点,优化了传统灰狼算法。采用Cat混沌映射和反向学习初始化种群,增加初始种群的多样性和均匀性;在灰狼位置更新方面结合了粒子群算法的个体位置更新策略的优势,降低了算法陷入局部最优的风险;引入非线性控制参数,平衡了算法的全局搜索能力和局部开发能力;利用Levy飞行对α狼进行全局搜索,防止了算法后期狼群丧失多样性和算法收敛早熟。利用优化后的灰狼算法对6个标准测试函数进行理论仿真,结果表明,与传统灰狼算法、粒子群算法和蚁群算法相比,优化后的灰狼算法在标准函数求解精度和算法稳定性方面均有显著提高。

关键词：灰狼算法粒子群算法 Levy飞行 Cat混沌映射反向学习

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The School that Changes Mindsets

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China Today 2025年第1期74卷 62-64页

作者： GUO QING kong SIQI 不详

China’s highest-altitude primary school is not only teaching children of farmers and herders but their parents as *** Sinopec Primary School in Nagqu,a city in Xizang Autonomous Region in southwest China,is known as the school“the closest to the sky”due to its high-altitude location-a breathtaking 4,700 meters above sea *** by oil and gas giant Sinopec as part of its corporate social responsibility,the school opened in 2012 and has since become a microcosm of China’s drive for education,especially in remote and rural areas,to ensure that no one is left behind.

关键词： altitude farmers southwest

A low redox potential and long life organic anode material for sodium-ion batteries

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Journal of Energy Chemistry 2025年第1期100卷 557-564页

作者： Zhi Li Yang Wei Kang Zhou Xin Huang Xing Zhou Jie Xu Taoyi kong Junwei Lucas Bao Xiaoli Dong Yonggang Wang Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Institute of New Energy Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) Fudan University Department of Chemistry Boston College School of Materials Science and Engineering Anhui University of Technology

Sodium-ion batteries （SIBs） with organic electrodes are an emerging research direction due to the sustainability of organic materials based on elements like C,H,O,and sodium ***,organic electrode materials for SIBs are mainly used as cathodes because of their relatively high redox potentials（>1 V）.Organic electrodes with low redox potential that can be used as anode are ***,a novel organic anode material （tetrasodium 1,4,5,8-naphthalenetetracarboxylate,Na4TDC） has been developed with low redox potential （<0.7 V） and excellent cyclic *** three-sodium storage mechanism was demonstrated with various in-situ/ex-situ spectroscopy and theoretical calculations,showing a high capacity of 208 mAh/g and an average decay rate of merely 0.022%per ***,the Na4TDC-hard carbon composite can further acquire improved capacity and cycling stability for 1200 cycles even with a high mass loading of up to 20 mg *** pairing with a thick Na3V2（PO4）3cathode (20.6 mg cm-2),the as-fabricated full cell exhibited high operating voltage （2.8 V）,excellent rate performance and cycling stability with a high capacity retention of 88.7% after 200 cycles,well highlighting the Na4TDC anode material for SIBs.

关键词： Organic anode material Low redox potential Composite anode Sodium-ion batteries

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三维偏振光针的产生及转换

黑龙江大学自然科学学报 2021年第1期38卷 109-115页

作者：周志龙王朝玉兰国强柴志军聂仲泉孔德贵黑龙江大学电子工程学院哈尔滨150080 太原理工大学新型传感器与智能控制教育部与山西省重点实验室太原030024

利用高数值孔径NA等于0.95的物镜紧聚焦电-磁偶极子反转辐射场,根据经验直接搜索法优化混合辐射场参数,通过矢量衍射理论与偶极子辐射场理论分别仿真了1、2和3对电磁偶极子的反转辐射场,获得了横向偏振光针、纵向偏振光针以及三维偏振光... 详细信息

利用高数值孔径NA等于0.95的物镜紧聚焦电-磁偶极子反转辐射场,根据经验直接搜索法优化混合辐射场参数,通过矢量衍射理论与偶极子辐射场理论分别仿真了1、2和3对电磁偶极子的反转辐射场,获得了横向偏振光针、纵向偏振光针以及三维偏振光针,可以实现三种光针之间的转换,并且获得的光针聚焦深度随着偶极子对数增加而增长。紧聚焦3对电-磁偶极子反转辐射场得到的三维偏振光针半高全宽可达0.426λ,聚焦深度可达6.2λ。通过仿真证实了三维偏振光针的横向分量主要来源于磁偶极子辐射场的贡献,纵向分量主要来源于电偶极子辐射场的贡献。获得的聚焦光场可应用于光刻、粒子捕获和高分辨率显微成像等领域。

关键词：紧聚焦矢量光束光针超衍射

Dynamic Interaction Analysis of Coupled Axial-Torsional-Lateral Mechanical Vibrations in Rotary Drilling Systems

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Structural Durability & Health Monitoring 2025年第1期19卷 77-103页

作者： Sabrina Meddah Sid Ahmed Tadjer Abdelhakim Idir kong Fah Tee Mohamed Zinelabidine Doghmane Madjid Kidouche Applied Automation Laboratory Faculty of Hydrocarbons and ChemistryUniversity of BoumerdesBoumerdes35000Algeria Institute of Electrical and Electronic Engineering(IGEE) University of BoumerdesBoumerdes35000Algeria Laboratory of the Electrification of Industrial Enterprises University of BoumerdesBoumerdes35000Algeria Electrical Engineering Department Mohamed Boudiaf University of M’silaM’sila28000Algeria Department of Civil and Environmental Engineering King Fahd University of Petroleum&MineralsDhahran31261Saudi Arabia Interdisciplinary Research Center for Construction and Building Materials King Fahd University of Petroleum&Minerals(KFUPM)Dhahran31261Saudi Arabia

Maintaining the integrity and longevity of structures is essential in many industries,such as aerospace,nuclear,and *** achieve the cost-effectiveness of large-scale systems in petroleum drilling,a strong emphasis on structural durability and monitoring is *** study focuses on the mechanical vibrations that occur in rotary drilling systems,which have a substantial impact on the structural integrity of drilling *** study speciﬁcally investigates axial,torsional,and lateral vibrations,which might lead to negative consequences such as bit-bounce,chaotic whirling,and high-frequency *** events not only hinder the efﬁciency of drilling but also lead to exhaustion and harm to the system’s components since they are difﬁcult to be detected and controlled in real *** study investigates the dynamic interactions of these vibrations,speciﬁcally in their high-frequency modes,usingﬁeld data obtained from measurement while ***ﬁndings have demonstrated the effect of strong coupling between the high-frequency modes of these vibrations on drilling sys-tem *** obtained results highlight the importance of considering the interconnected impacts of these vibrations when designing and implementing robust control ***,integrating these compo-nents can increase the durability of drill bits and drill strings,as well as improve the ability to monitor and detect ***,by exploiting theseﬁndings,the assessment of structural resilience in rotary drilling systems can be ***,the study demonstrates the capacity of structural health monitoring to improve the quality,dependability,and efﬁciency of rotary drilling systems in the petroleum industry.

关键词： Rotary drilling systems mechanical vibrations structural durability dynamic interaction analysis ﬁeld data analysis