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全球化语境下高校国家安全教育的反思与构建

黑龙江高教研究 2006年第12期24卷 86-89页

作者：边和平中国矿业大学江苏徐州221008

全球化进程使我国国家安全面临严峻挑战。高校肩负着为我国社会主义事业培养合格建设者和可靠接班人的历史重任,如何在全球化背景下进一步加强和创新国家安全教育,成为新时期高校思想政治教育应当解决的重大课题。

关键词：全球化高校国家安全教育反思与构建

Transient Stability Preventive Control of Wind Farm Connected Power System Considering the Uncertainty

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Energy Engineering 2024年第6期121卷 1637-1656页

作者： Yuping bian Xiu Wan Xiaoyu Zhou School of Electric Power Engineering Nanjing Institute of TechnologyNanjing211167China

To address uncertainty as well as transient stability constraints simultaneously in the preventive control of windfarm systems, a novel three-stage optimization strategy is established in this paper. In the first stage, the probabilisticmulti-objective particle swarm optimization based on the point estimate method is employed to cope with thestochastic factors. The transient security region of the system is accurately ensured by the interior point methodin the second stage. Finally, the verification of the final optimal objectives and satisfied constraints are enforcedin the last stage. Furthermore, the proposed strategy is a general framework that can combine other optimizationalgorithms. The proposed methodology is tested on the modified WSCC 9-bus system and the New England 39-bussystem. The results verify the feasibility of the method.

关键词： Transient preventive control chance-constrained programming multi-objective PSO TSCOPF wind farm

[BMIM]OH离子液体催化甲硫醇和3-甲基-3-丁烯-2-酮Michael加成反应机理

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化学反应工程与工艺 2018年第4期34卷 379-384页

作者：卞贺张会明滨州学院化工与安全学院山东滨州256603 中国石油大学(华东)化学工程学院山东青岛266580

为了更好地理解离子液体在Michael加成反应中的作用,采用密度泛函理论的B3PW91方法,在6-31G(d)基组水平上研究了离子液体[BMIM]OH催化甲硫醇和3-甲基-3-丁烯-2-酮Michael加成的微观反应机理,全参数优化了反应势能面上各驻点的几何构型... 详细信息

为了更好地理解离子液体在Michael加成反应中的作用,采用密度泛函理论的B3PW91方法,在6-31G(d)基组水平上研究了离子液体[BMIM]OH催化甲硫醇和3-甲基-3-丁烯-2-酮Michael加成的微观反应机理,全参数优化了反应势能面上各驻点的几何构型。结果表明,无催化剂存在时,3-甲基-3-丁烯-2-酮的反式和顺式构型的加成反应能垒分别为201.34和167.82 kJ/mol;采用[BMIM]OH作为催化剂时,速控步的反应能垒分别降低为46.53和44.38 kJ/mol。[BMIM]OH的阴离子和阳离子在Michael加成反应中起重要作用,提高了反应活性,大幅度降低了反应能垒。

关键词：离子液体甲硫醇 3-甲基-3-丁烯-2-酮迈克尔加成

The Middle and Lower Cambrian salt tectonics in the central Tarim Basin,China:A case study based on strike-slip fault characterization

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Energy Geoscience 2024年第2期5卷 53-61页

作者： Qing bian Jibiao Zhang Cheng Huang SINOPEC Petroleum Exploration and Production Research Institute BeijingChina SINOPEC Northwest Oilfield Company UrumuqiChina

Due to the considerable depth of the salt layers and the lack of calibration by exploratory drilling,the interpretation of the Middle and Lower Cambrian salt formations in the central Tarim Basin poses a *** this paper,we apply the coupling and decoupling deformation theory in salt tectonics to analyze the No.7 fault mapped in the seismic datasets by the response characteristics of the Middle and Lower Cambrian *** quantifying the stratigraphic framework of the Middle and Lower Cambrian strata,we define the position of the salt layer with the seismic *** decoupling is observed in the Middle and Lower Cambrian sequences in the Shuntuoguole Low Uplift,while deformation coupling is observed in these two sequences in the Shaya Uplift.

关键词： Tarim Basin Salt tectonics Strike-slip fault Structural analysis Seismic interpretation of decoupling zone

不同覆盖位置下草地坡面水流路径长度变化特征

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农业工程学报 2021年第3期37卷 116-123页

作者：闫帅旗朱冰冰边熇陕西师范大学地理科学与旅游学院西安710119

为深入探索植被覆盖及其格局的减水减沙的水动力学过程及其机理,该研究利用室内放水冲刷试验,分析了不同植被盖度及其覆盖位置在不同冲刷流量下水流路径长度的变化,以及水流路径长度与植被覆盖度、水动力学参数和产流产沙量之间的关系,... 详细信息

为深入探索植被覆盖及其格局的减水减沙的水动力学过程及其机理,该研究利用室内放水冲刷试验,分析了不同植被盖度及其覆盖位置在不同冲刷流量下水流路径长度的变化,以及水流路径长度与植被覆盖度、水动力学参数和产流产沙量之间的关系,探讨坡面水流路径长度作为表征植被格局参数的可行性。结果表明:1)植被覆盖度可有效影响水动力参数的变化,并且随着植被覆盖度的增加,流速和单位水流功率呈线性减小趋势(P<0.01);而糙率系数、阻力系数和径流剪切力则呈指数增加趋势(P<0.01)。坡面水流受阻可能性增加,动能减弱,进而导致产流产沙量不断减少,并且冲刷流量越大,减小幅度越大。2)在不同冲刷流量下,水流路径长度与植被覆盖度、水动力参数和产流产沙量之间均存在显著的相关关系(P<0.01)。同时随着水流路径长度的增加,一方面,流速和单位水流功率呈对数式上升,坡面水流动能增强;另一方面糙率系数、阻力系数和径流剪切力分别呈对数式和指数式减小,坡面阻滞能力下降,水流侵蚀力增强。最终导致坡面侵蚀状况发生变化,产流产沙量呈对数式增加。因此,水流路径长度可作为反映植被减水减沙的动力学过程和预测坡面产水产沙的参数之一。该研究为深化理解植被格局与水文连通性的作用关系,建立合适的植被格局表征和植被减蚀效应评价提供依据,以期增强地区生态环境的质量和稳定性,为现代化农业发展,特别是保障农业生产环境做出贡献。

关键词：坡面植被侵蚀水流路径长度水动力参数

Isogeometric Analysis for the Arbitrary AFG Microbeam with Two-Phase Nonlocal Stress-Driven Model

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Acta Mechanica Solida Sinica 2024年第2期37卷 341-360页

作者： Pei-Liang bian Zhaowei Liu Hai Qing Tiantang Yu Department of Engineering Mechanics Hohai UniversityNanjing211100China State Key Laboratory of Mechanics and Control of Mechanical Structures Nanjing University of Aeronautics and AstronauticsNanjing210016China

Scale effects play critical roles in the mechanical responses of *** isogeometric analysis was developed here to investigate the mechanical responses of an axially functionally graded *** Euler–Bernoulli beam model was utilized,and size effects in the structure were modeled with a stress-driven two-phase local/nonlocal integral *** governing equation of microstructures was given in an equivalent differential form with two additional constitutive boundary *** framework was verified and utilized to analyze the microbeam’s static and dynamic mechanical *** present work showed great potential for modeling various types of functionally graded microstructures.

关键词： Isogeometric analysis Size effect Functionally graded material Nonlocal theory Euler-Bernoulli beam

Domain wall network:A dual solution for gravitational waves and Hubble tension?

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Science China(Physics,Mechanics & Astronomy) 2024年第11期Mechanics & Astronomy) .卷 43-50页

作者： Ligong bian Shuailiang Ge Changhong Li Jing Shu Junchao Zong Department of Physics and Chongqing Key Laboratory for Strongly Coupled Physics Chongqing University Center for High Energy Physics Peking University School of Physics and State Key Laboratory of Nuclear Physics and Technology Peking University Department of Astronomy Key Laboratory of Astroparticle Physics of Yunnan Province School of Physics and AstronomyYunnan University Beijing Laser Acceleration Innovation Center Department of Physics Nanjing University CAS Key Laboratory of Theoretical Physics Institute of Theoretical Physics Chinese Academy of Sciences

We explore the possibility that domain wall networks generate the stochastic gravitational wave background（SGWB） observed as a strong common power-law process in the Data Release-2 of Parkes Pulsar Timing Array. We find that a broad range of parameters, specifically wall tension around σDW～（29-414 TeV）3and wall-decay temperature within Td～ 20-257 MeV, can explain this phenomenon at a 68% credible level. Meanwhile, the same parameters could ease the Hubble tension if particles from these domain wall networks decay into dark radiation. We establish a direct analytical relationship, ?GW（fp, T0）h2～ ?radh2(?ν?Neff)2,to illustrate this coincidence, underlining its importance in the underlying physics and potential applicability to a wider range of models and data. Conversely, if the common power-law process is not attributed to domain wall networks, our findings impose tight limits on the wall tension and decay temperature.

关键词： domain wall gravitational waves Hubble tension

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Research on the Upper Limit of Accuracy for Predicting Theoretical Tandem Mass Spectrometry

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Journal of Computer and Communications 2024年第3期12卷 184-195页

作者： Changjiu he Xiaoyu Wang Mingming Lyu Xinye bian School of Computer Science and Technology Shandong University of Technology Zibo China

In recent years, numerous theoretical tandem mass spectrometry prediction methods have been proposed, yet a systematic study and evaluation of their theoretical accuracy limits have not been conducted. If the accuracy of current methods approaches this limit, further exploration of new prediction techniques may become redundant. Conversely, a need for more precise prediction methods or models may be indicated. In this study, we have experimentally analyzed the limits of accuracy at different numbers of ions and parameters using repeated spectral pairs and integrating various similarity metrics. Results show significant achievements in accuracy for backbone ion methods with room for improvement. In contrast, full-spectrum prediction methods exhibit greater potential relative to the theoretical accuracy limit. Additionally, findings highlight the significant impact of normalized collision energy and instrument type on prediction accuracy, underscoring the importance of considering these factors in future theoretical tandem mass spectrometry predictions.

关键词： Tandem Mass Spectrometry Spectral Prediction Theoretical Limit

8-羟基喹啉与乙醇氢键相互作用的密度泛函理论研究

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分子科学学报 2019年第3期35卷 248-252页

作者：裴玲卞贺滨州学院化工与安全学院滨州市材料化学重点实验室

采用密度泛函理论M06-2X和B3LYP-D3方法,在6-311+G(d,p)基组水平上对8-羟基喹啉与乙醇形成的复合物进行结构优化和频率计算,得到5种稳定的复合物,所有复合物进行基组重叠误差(BSSE)校正后的相互作用能为-21.01^-33.13kJ/mol(M06-2X)和-2... 详细信息

采用密度泛函理论M06-2X和B3LYP-D3方法,在6-311+G(d,p)基组水平上对8-羟基喹啉与乙醇形成的复合物进行结构优化和频率计算,得到5种稳定的复合物,所有复合物进行基组重叠误差(BSSE)校正后的相互作用能为-21.01^-33.13kJ/mol(M06-2X)和-20.43^-34.10kJ/mol(B3LYP-D3),符合氢键的能量范围,相互作用能主要由氢键贡献.结构和振动频率分析显示,氢键的形成使相应的O—H键键长变长,对称伸缩振动频率减小,说明复合物中形成的氢键都是正常的红移型氢键.应用分子中的原子(AIM)理论对5种复合物的氢键性质和特征进行分析,结果显示复合物A,B,C和E中的氢键是弱氢键,静电作用占主导,而复合物D中的氢键本质上是中等强度氢键且共价作用占主导地位.

关键词： 8-羟基喹啉密度泛函理论氢键 AIM