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Realization of one-dimensional 2^(n)-root topological states in photonic lattices

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Science China(Technological Sciences) 2024年第1期67卷 98-104页

作者： WEI RuiShan zhang qinglong YANG DanDan HUANG XiongJian PAN QiWen KANG Juan QIU JianRong YANG ZhongMin DONG GuoPing State Key Laboratory of Luminescent Materials and Devices and Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied TechniquesGuangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and DevicesSchool of Materials Science and EngineeringSouth China University of TechnologyGuangzhou 510640China School of Physics and Optoelectronics South China University of TechnologyGuangzhou 510640China State Key Laboratory of Modern Optical Instrumentation College of Optical Science and EngineeringZhejiang UniversityHangzhou 310027China

Square-root topological insulators recently discovered are intriguing topological *** possess topological properties inherited from the squared Hamiltonian and exhibit double-band *** mechanism of the square root was generalized to 2^(n)-root topological insulators,giving rise to more band *** this study,we describe the experimental realization of onedimensional 2^(n)-root topological insulators in photonic waveguide arrays using the archetypical Su-Schrieffer-Heeger(SSH)*** edge states with tunable numbers are clearly observed under visible *** particular,we visualized the dynamic evolutions of the light propagation by varying the sample lengths,which further proved the localization and multiple numbers of edge states in 2^(n)-root topological *** experiment,which involves constructing 2^(n)-root topological photonic lattices in various geometric arrangements,provides a stable platform for studying topological states that exhibit a remarkable degree of flexibility and control.

关键词： 2^(n)-root topological insulators multiple edge states photonic waveguide arrays light dynamics

Graph based recurrent network for context specific synthetic lethality prediction

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Science China Life Sciences 2024年

作者： Yuyang Jiang Jing Wang Yixin zhang ZhiWei Cao qinglong zhang Jinsong Su Song He Xiaochen Bo Academy of Medical Engineering and Translational Medicine Tianjin University Department of Bioinformatics Institute of Health Service and Transfusion MedicineBeijing School of Medicine Tsinghua University School of Informatics Xiamen University

The concept of synthetic lethality (SL) has been successfully used for targeted therapies. To further explore SL for cancer therapy, identifying more SL interactions with therapeutic potential are essential. Recently, graph neural network-based deep learning methods have been proposed for SL prediction, which reduce the SL search space of wet-lab based methods. However, these methods ignore that most SL interactions depend strongly on genetic context, which limits the application of the predicted results. In this study, we proposed a graph recurrent network-based model for specific context-dependent SL prediction (SLGRN). In particular, we introduced a Graph Recurrent Network-based encoder to acquire a context-specific, low-dimensional feature representation for each node, facilitating the prediction of novel SL. SLGRN leveraged gate recurrent unit (GRU) and it incorporated a context-dependent-level state to effectively integrate information from all nodes. As a result, SLGRN outperforms the state-of-the-arts models for SL prediction. We subsequently validate novel SL interactions under different contexts based on combination therapy or patient survival analysis. Through in vitro experiments and retrospective clinical analysis, we emphasize the potential clinical significance of this context-specific SL prediction model.

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Phosphine-catalyzed Tunable Domino Reaction

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Phosphine-catalyzed Tunable Domino Reaction

Geochemical evidence of paleogeography and paleoclimate during deposition of the 2nd Member of Kongdian Formation in Kongnan area

中国化学会第九届全国有机化学学术会议

作者： qinglong zhang Jie Yang You Huang State Key Laboratory and Institute of Elemento-organic Chemistry Nankai University

Fully-substituted dihydrofurans,2H-pyrans and functionalized cyclopentens are important motifs in active natural products,dynes and *** the synthesis of them from same substrates under different conditions has not been *** our group’s reports,we report a tunable domino reaction with the Morita-Baylis-Hillman carbonates under different

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Global Geology 2007年第1期10卷 48-54页

作者： Qinghua YAN Jing SUN Xudong zhang qinglong MENG Man WANG College of Earth Sciences Jilin University Changchun 130061 China

The 2nd Member of Kongdian Formation has been made up of a large number of oil shale and mudstone in the Kongnan aera of Huanghua depression around the Bohai *** the Kongnan area,the lake basins were very large and deep during the deposition of the 2nd Member of Kongdian *** that period,the lakes were sealed,uncommunicated with the sea water and the paleoclimate was very warm and wet in Kongnan *** the content of the trace element and the rare earth element,carbon and oxygen isotope in the disquisition,The authors prove the two views correct.

关键词： Kongnan the 2nd Member of Kongdian Formation trace element rare earth element carbonand oxygen isotopes paleoclimate palaeogeography

国际内部审计师协会关于公共部门内部审计能力模型的研究与启示

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审计研究 2011年第2期 45-52页

作者：张庆龙北京国家会计学院 101312

国际内部审计师协会(简称IIA)2009年发布了公共部门内部审计能力模型研究报告,本文从背景、原则、主要内容三个方面介绍了这份研究报告。通过这份研究报告,我们可以看出:公共部门内审人员胜任能力建设是一个不断制度化的过程;控制环境... 详细信息

国际内部审计师协会(简称IIA)2009年发布了公共部门内部审计能力模型研究报告,本文从背景、原则、主要内容三个方面介绍了这份研究报告。通过这份研究报告,我们可以看出:公共部门内审人员胜任能力建设是一个不断制度化的过程;控制环境建设的完善程度将影响内审人员能力的提升;应通过相关法律、法规建设,政府审计建议,以及中国内部审计协会来推动我国公共部门内部审计制度的建立、完善。

关键词：公共部门内部审计能力模型

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论中国审计资源配置方式的特殊性及其优化

现代财经（天津财经大学学报） 2006年第12期26卷 47-52页

作者：张庆龙天津财经大学商学院天津300222

审计资源配置的目标以社会需求为导向,以效益性为核心。审计资源配置的方式应是计划与市场相结合,并从宏观与微观两个层面,制定审计资源配置的具体优化措施。

关键词：审计资源配置配置方式配置优化

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多层非均质层间窜流定量表征及开发对策

特种油气藏 2021年第1期28卷 136-141页

作者：张庆龙中国石油冀东油田分公司河北唐山063004

针对水驱油藏非均质储层层间窜流干扰问题,设计了多层非均质长岩心物理模型,运用阿尔奇方法计算各级渗透率岩心组沿程饱和度分布,模拟研究多层水驱生产特征及层间窜流规律,通过末端岩心饱和度变化确定窜流程度,对比不同非均质性条件下... 详细信息

针对水驱油藏非均质储层层间窜流干扰问题,设计了多层非均质长岩心物理模型,运用阿尔奇方法计算各级渗透率岩心组沿程饱和度分布,模拟研究多层水驱生产特征及层间窜流规律,通过末端岩心饱和度变化确定窜流程度,对比不同非均质性条件下层间窜流程度的差异。结果表明:逐层启动开发方式下,层间窜流程度大幅降低,其采收率较多层并行合采提高4.12个百分点;多层并行合采时,层间渗透率差异导致的层间压力梯度会引发中低渗层向高渗层的窜流倒灌现象,层间非均质性越强,窜流现象越严重,采收率越低。“逐层合采”的开采方法可有效提高多层非均质油藏的采收率。研究成果为开发方案的制订提供了借鉴。

关键词：水驱多层非均质层间窜流窜流特征沿程饱和度逐层开启合采阿尔奇方法