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中国共产党“本领意识”的历史演进、主要源泉和强化举措

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晋中学院学报 2024年第2期41卷 7-13页

作者：李宇征李书喃河北工业大学马克思主义学院天津300401

基于“忧患意识”“问题意识”基础上的“本领意识”是推动中国共产党不断实现自我革命、自我完善的强大动力。百年历程中,中国共产党历届领导集体基于不同的历史条件及其历史任务,对党当时所面临的问题进行了深度概括,并相应地提出了... 详细信息

基于“忧患意识”“问题意识”基础上的“本领意识”是推动中国共产党不断实现自我革命、自我完善的强大动力。百年历程中,中国共产党历届领导集体基于不同的历史条件及其历史任务,对党当时所面临的问题进行了深度概括,并相应地提出了针对性解决措施。纵观历史,可以发现,不断推进马克思主义中国化是“本领意识”产生、发展和解决的重要主题。

关键词：中国共产党本领意识自我革命马克思主义中国化

Performance analysis of a rate adaptive multi-band ultra-wideband system based on quadrature fractal modulation scheme

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通信学报 2005年第10期26卷 34-40页

作者： li yu-hong ZHOU zheng Wireless Network Lab Beijing University of Posts and Telecommunications Beijing 100876 China

A rate adaptive multi-band ultra-wideband (UWB) system based on the quadrature fractal modulation (QFM) scheme was *** the use of homogeneous signals as modulating waveforms in UWB system,the signal within each 528MHz sub-band was divided into 8 different frequency bandwidths using wavelets transform and these data sequences to be transmitted were embedded into homogeneous *** is found that the use of homogeneous signals in such UWB system is quite feasible,leadings to a novel multi-rate diversity *** each 528MHz sub-band,the UWB-QFM system can provide much higher data rates than that of the UWB orthogonal frequency division multiplexing (OFDM) *** results also show that the bit error rate (BER) performance of the UWB-QFM system achieves a greatly improvement over existing UWB-OFDM *** to the fractal properties of the homogeneous signals,these data sequences to be transmitted can be recovered using arbitrarily short receiver signal.

关键词：多频率传输积分调制微波传输直角频率分割多路技术

BSPM:A NEW MECHANISM FOR “OVERLAP-MATCHING EXPRESSIONS”IN DPI

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Journal of Electronics(China) 2010年第3期27卷 289-297页

作者： li zheng yu Nenghai li Yang MOE-Microsoft Key Lab of Multimedia Computing and Communication University of Science and Technology of China Hefei 230027 China

Nowadays, using Deterministic Finite Automata (DFA) or Non-deterministic Finite Automata (NFA) to parse regular expressions is the most popular way for Deep Packet Inspection (DPI), and the research about DPI focuses on the improvement of DFA to reduce memory. However, most of the existing literature ignores a special kind of "overlap-matching expression", which causes states explosion and takes quite a large part in the DPI rules. To solve this problem, in this paper a new mechanism is proposed based on bitmap. We start with a simple regular expression to describe "overlap-matching expressions" and state the problem. Then, after calculating the terrible number of exploded states for this kind of expressions, the procedure of Bitmap-based Soft Parallel Mechanism (BSPM) is described. Based on BSPM, we discuss all the different types of "overlap-matching ex- pressions" and give optimization suggestions of them separately. Finally, experiment results prove that BSPM can give an excellent performance on solving the problem stated above, and the optimization suggestions are also effective for the memory reduction on all types of "overlap-matching expressions".

关键词： Intrusion detection Deep Packet Inspection (DPI) Regular expressions Bitmap-based Deterministic Finite Automata (DFA)

苯系物与噪声联合暴露对男工职业性噪声性听力损失的影响

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现代预防医学 2024年第2期51卷 233-237页

作者：樊惠玲焦洁张磊李雨铮姚玲莉王冰郝长付姚武郑州大学公共卫生学院劳动卫生与环境卫生学系河南省第三人民医院(河南省职业病医院) 劳动卫生科

目的探讨苯系物和噪声联合暴露对工人职业性噪声性听力损失(noise-induced hearing loss, NIHL)的影响。方法选择某客车制造企业1 283名男工为研究对象，根据工作场所噪声与苯系物暴露情况将工人分为两组，噪声暴露组889人，苯系物与... 详细信息

目的探讨苯系物和噪声联合暴露对工人职业性噪声性听力损失(noise-induced hearing loss, NIHL)的影响。方法选择某客车制造企业1 283名男工为研究对象，根据工作场所噪声与苯系物暴露情况将工人分为两组，噪声暴露组889人，苯系物与噪声联合暴露组394人。对工人分别进行左、右耳500 Hz、1 000 Hz、2 000 Hz、3 000 Hz、4 000 Hz、6 000 Hz 6个频率的纯音气导听阈测试，比较两组的高频及语频听力损失差异，并分析年龄、工龄、体重指数、吸烟、饮酒、高血压、暴露因素对听力损失的影响。结果苯系物与噪声联合暴露组工人高频听力损失和语频听力损失检出率均高于噪声暴露组(P<0.01);随年龄增加，工人听力损失检出率升高(P<0.01);苯系物与噪声联合暴露、年龄≥40岁、工龄≥20年及饮酒是工人高频听力损失的危险因素(P<0.01);苯系物与噪声联合暴露、年龄≥40岁、工龄10～20年是研究对象语频听力损失的危险因素(P<0.01)。苯系物与噪声联合暴露增加了工人NIHL的风险(OR高频=1.974,OR语频=13.086)。结论苯系物与噪声联合暴露可能对NIHL具有协同作用。

关键词：苯系物噪声联合暴露职业性听力损失

Scaling laws governing the elastic properties of 3D graphenes

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Science China(Technological Sciences) 2024年第6期67卷 1748-1756页

作者： li Ming LU Guo yu HaoDong li MengLei zheng FaWei Centre for Quantum Physics Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement(MOE)School of PhysicsBeijing Institute of TechnologyBeijing100081China Beijing Key Lab of Nanophotonics&Ultrafine Optoelectronic Systems School of PhysicsBeijing Institute of TechnologyBeijing100081China Laboratory of Computational Physics Institute of Applied Physics and Computational MathematicsBeijing100088China Department of Physics Capital Normal UniversityBeijing100048China

In this study,we comprehensively investigated the scaling law for elastic properties of three-dimensional honeycomb-like graphenes(3D graphenes)using hybrid neural network potential-based molecular dynamics simulations and theoretical *** elastic constants were obtained as functions of honeycomb hole size,denoted by the graphene wall length *** five independent elastic constants in the large-L limit are proportional to L^(-1).The associated coefficients are combinations of elastic constants of two-dimensional ***-order terms including L^(-2)and L^(-3)emerge for finite L *** have three origins,the distorted areas close to the joint lines of 3D graphenes,the variation in solid angles between graphene plates,and the bending distortion of graphene ***,the chirality becomes essential with decreasing L because the joint line structures are different between the armchair and zigzag-type 3D *** findings provide insights into the elastic properties of graphene-based superstructures and can be used for further studies on graphene-based materials.

关键词： scaling law neural network elastic properties 3D graphene

Synthesis and Biological Activity of Novel 2,3-Dihydro-2-phenylsulfonylhydrazono-3-(2′,3′,4′,6′-tetra-O-acetyl-β-D-glucopyranosyl)thiazoles

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Chemical Research in Chinese Universities 2009年第1期25卷 52-55页

作者： WANG Hao-an li yu-xin li zheng-ming CHENG Hai-ying WANG Su-hua liU Bin Elemento-Organic Chemistry Institute State Key Laboratory of Elemento-Organic Chemistry National Pesticide Engineering Research Center Nankai University Tianjin 300071 P. R. China

A series of novel 2,3-dihydro-2-phenylsulfonylhydrazono-3-（2＇,3＇,4＇,6＇-tetra-O-acetyl-β-D-glucopyranosyl）thiazoles were designed and synthesized via the reaction of thiosemicarbazide with chloroaldehyde. Their chemical structures were characterized by ^1H and ^13C NMR spectroscopy and elemental analysis. The bioassay results indicate that some of these compounds exhibit moderate fungicidal and herbicidal activities.

关键词： Synthesis 2,3-Dihydrothiazole Biological activity

Data Mining Ontology Development for High User Usability

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Wuhan University Journal of Natural Sciences 2006年第1期11卷 51-56页

作者： li yu-hua LU zheng-ding SUN Xiao-lin WEN Kun-mei li Rui-xuan College of Computer Science and Technology Huazhong University of Science and Technology Wuhan 430074Hubei China

This paper mainly introduces the development and implementation of the user centered data mining service ontology on Universal Knowledge Grid （UKG）. UKG is an ontology-based grid architecture model to build large-scale distributed knowledge discovery system on the grid. The data mining ontology services are the main service offering by UKG. It can meet the user requirements of knowledge discovery in different domains and different hierarchies and make the system exoteric, extensible and high usable. A data min- ing solution for money laundering is introduced.

关键词： data mining ontology usability universal knowledge grid

Ballistic performance of spherical fragments penetrating PCrNi3MoV target plates

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Defence Technology（防务技术） 2024年第3期33卷 295-307页

作者： Dou Hong Wenbin li yu zheng Yiming li Ning Jiang Kebin Zhang Ministerial Key Laboratory of ZNDY Nanjing University of Science and TechnologyNanjingChina

PCrNi3MoV steel is a medium-carbon,low-alloy quenched and tempered steel that finds its applications in military gun barrels due to the high wear resistance and ablation *** study the penetration and failure modes of PCrNi3MoV plates impacted by tungsten spheres,tungsten spheres of various diameters(5 mm,8 mm,and 10 mm)were used to impact PCrNi3MoV steel plates with thicknesses of 6 mm,9 mm,and 14 *** penetration performance of the spheres was analyzed for different velocities,and the ultimate penetration velocity of the plate was *** was found that the primary failure modes of the PCrNi3MoV plate were compression pitting failure and shear *** the dimensional analysis method,a relationship between the bulge height of the steel plate and the fragment velocity,an equation for the ultimate penetration velocity,and a relationship between the target penetration energy and the fragment velocity were ***,a projectile-target action index was proposed to describe the process of tungsten spheres with different velocities impacting target *** results suggested that under the same thickness of the target plate,a larger-diameter fragment required more kinetic energy to obtain the same ultimate penetration effect as a smaller-diameter *** equations obtained through dimensional analysis predicted values that agreed well with experimental values,indicating that these equations can be applied to engineering applications.

关键词： Impact damage Ultimate penetration velocity Bulge height Target penetration energy Failure modes

Spherical Confinement Generates Entropic Force to Accelerate Polymer Chain Detachment

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Chinese Journal of Polymer Science 2024年第3期42卷 407-416,I0010页

作者： yu-Shan zheng Jian-Ping Zhou Yan Xu Kai li Mechanical Engineering Xinjiang UniversityUrumqi 830002China

To understand the dynamic process of polymer detachment, it is necessary to determine the mean detachment time of a single breakable link, which is modeled as a spring. Normally, this time can be viewed as the escape of a Brownian particle from the potential well of the spring. However, as the free dangling length of the polymer chain increases, the conformational entropy of the chain is affected by geometric confinement. It means that the wall exerts a repulsive force on the chain, resulting in accelerated link detachment from a macroscopic perspective. In this work, we investigate the effect of entropy on the detachment rate in the case where the substrate is spherical. We demonstrate that spherical confinement accelerates chain detachment both inside and outside the sphere. An analytical expression for the mean detachment time of breakable links is given, which includes an additional pre-factor that is related to the partition function. Additionally, we analyze the expressions for entropic forces inside the sphere, outside the sphere, and on a flat wall, comparing their magnitudes to explain the difference in mean detachment time.

关键词： Polymer detachment Breakable link Entropic force Mean first passage time