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晋察冀边区干部教育浅探

河北北方学院学报（社会科学版） 2024年第1期40卷 20-24页

作者：张秀肖守库回娅冬河北北方学院法政学院河北张家口075000 河北北方学院图书馆河北张家口075000 河北北方学院宣传统战部河北张家口075000

抗日战争时期,晋察冀边区为适应新形势需要,遵从党中央的指示,开展了干部教育运动,包括构建干部教育管理体制、出台系列干部教育政策法规、形成在职干部教育以及干部学校教育为主的各级各类教育体系。边区干部教育运动的开展,极大地提... 详细信息

抗日战争时期,晋察冀边区为适应新形势需要,遵从党中央的指示,开展了干部教育运动,包括构建干部教育管理体制、出台系列干部教育政策法规、形成在职干部教育以及干部学校教育为主的各级各类教育体系。边区干部教育运动的开展,极大地提高了党员干部的素质,为抗日战争的胜利和随之而来的解放战争的伟大胜利提供了雄厚而高素质的干部队伍与人才保证,且其经验至今仍极具借鉴价值。

关键词：晋察冀边区干部教育教育体系

A new approach in analyzing extinction probability of Markov branching process with immigration and migration

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Frontiers of Mathematics in China 2015年第4期10卷 733-751页

作者： Anyue CHEN Xiliu Li HoMing ku Department of Finmacial Mathematics and Financial Engineering South University of Science and Technology of China Shenzhen 518055 China Department of Mathematical Sciences University of Liverpool Liverpool L69 7ZL UK

We use a new approach to consider the extinction properties of the Markov branching process with immigration and migration recently discussed by Li and Liu [Sci. China Math., 2011, 54： 1043-1062]. Some much better ex... 详细信息

关键词： Markov branching processes interaction extinction probability

基于SCA-CHHO-ELM的短期电力负荷预测

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齐鲁工业大学学报 2024年第1期38卷 12-18页

作者：库杨杨王佐勋刘健齐鲁工业大学(山东省科学院)信息与自动化学院山东济南250353

准确的电力负荷预测是保证电网稳定运行的基础,也是电力规划的重要依据,为了提高电力负荷预测的精度,提出了一种新的预测模型,首先采用混沌策略与正余弦扰动策略对哈里斯鹰算法进行优化,然后用改进的哈里斯鹰算法对极限学习机的权值和... 详细信息

准确的电力负荷预测是保证电网稳定运行的基础,也是电力规划的重要依据,为了提高电力负荷预测的精度,提出了一种新的预测模型,首先采用混沌策略与正余弦扰动策略对哈里斯鹰算法进行优化,然后用改进的哈里斯鹰算法对极限学习机的权值和阈值进行优化,最后用该模型进行短期电力负荷预测。对比其他预测模型可得,该模型的预测效果大大提高,并且具有更好的泛化能力与稳定性。

关键词：极限学习机正余弦扰动策略混沌哈里斯鹰算法短期负荷预测

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基于改进鲸鱼优化算法的风电功率预测

齐鲁工业大学学报 2024年第5期38卷 11-17页

作者：库杨杨王佐勋刘健齐鲁工业大学(山东省科学院)信息与自动化学院山东济南250353

准确的风电预测是保证风电并网稳定运行的基础,为了提高风电预测的精度,提出了一种新的预测模型。首先采用混沌策略初始化种群,并且利用哈里斯鹰策略与自适应权重策略对鲸鱼优化算法进行改进,然后用改进的鲸鱼优化算法对长短期记忆神经... 详细信息

准确的风电预测是保证风电并网稳定运行的基础,为了提高风电预测的精度,提出了一种新的预测模型。首先采用混沌策略初始化种群,并且利用哈里斯鹰策略与自适应权重策略对鲸鱼优化算法进行改进,然后用改进的鲸鱼优化算法对长短期记忆神经网络的神经元数目和学习率进行优化,最后用该模型进行风电功率预测。该模型相较于其他对比模型具有较高的预测性能,并且具有更好的泛化能力与稳定性。

关键词：长短期记忆神经网络鲸鱼优化算法哈里斯鹰算法风电功率预测

A Delayed Stochastic Volatility Correction to the Constant Elasticity of Variance Model

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Acta Mathematicae Applicatae Sinica 2016年第3期32卷 611-622页

作者： Min-ku LEE Jeong-Hoon KiM Department of Mathematics Kunsan National University Department of Mathematics Yonsei University

The Black-Scholes model does not account non-Markovian property and volatility smile or skew although asset price might depend on the past movement of the asset price and real market data can find a non-flat structure of the implied volatility surface. So, in this paper, we formulate an underlying asset model by adding a delayed structure to the constant elasticity of variance （CEV） model that is one of renowned alternative models resolving the geometric issue. However, it is still one factor volatility model which usually does not capture full dynamics of the volatility showing discrepancy between its predicted price and market price for certain range of options. Based on this observation we combine a stochastic volatility factor with the delayed CEV structure and develop a delayed hybrid model of stochastic and local volatilities. Using both a martingale approach and a singular perturbation method, we demonstrate the delayed CEV correction effects on the European vanilla option price under this hybrid volatility model as a direct extension of our previous work [12].

关键词： constant elasticity variance , delay stochastic volatility martingale option pricing

An effective fault prediction model developed using an extreme learning machine with various kernel methods

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Frontiers of information Technology & Electronic Engineering 2018年第7期19卷 864-888页

作者： Lov kuMAR Anand TiRKEY Santanu-ku.RATH Department of Computer Science and Engineering National Institute of Technology Rourkela

System analysts often use software fault prediction models to identify fault-prone modules during the design phase of the software development life cycle. The models help predict faulty modules based on the software metrics that are input to the models. in this study, we consider 20 types of metrics to develop a model using an extreme learning machine associated with various kernel methods. We evaluate the effectiveness of the mode using a proposed framework based on the cost and efficiency in the testing phases. The evaluation process is carried out by considering case studies for 30 object-oriented software systems. Experimental results demonstrate that the application of a fault prediction model is suitable for projects with the percentage of faulty classes below a certain threshold, which depends on the efficiency of fault identification(low: 47.28%; median: 39.24%; high: 25.72%). We consider nine feature selection techniques to remove the irrelevant metrics and to select the best set of source code metrics for fault prediction.

关键词： CK metrics Cost analysis Extreme learning machine Feature selection techniques Object-oriented software

Orientation of the fiber suspending in the flow through a tube containing a sphere

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Journal of Hydrodynamics 2013年第2期25卷 174-182页

作者：梁晓瑜 ku Xiao-ke 王叶龙 institute of Fluid Engineering School of Aeronautics and AstronauticsZhejiang University College of Metrology and Measurement Engineering China Jiliang University Department of Energy and Process Engineering Norwegian University of Science and Technology

Fiber suspensions flow through a tube containing a sphere in the dilute and concentrated regimes is simulated numerically with the Lattice Boltzmann Method （LBM）. The numerical results of fiber orientation distribution based on a statistical scheme are obtained and agree qualitatively with the experimental ones for the flow through a parallel plate channel comaining a cylinder. The results show that the sphere in the tube results in a change in the fiber orientation distribution downstream of the sphere along the flow and transverse directions. The influences of the sphere on the fiber orientation distribution are more significant for the concentrated suspensions than for the dilute one. The effect of the initial fiber orientations on the fiber orientation distribution is significant upstream of the sphere but small downstream of the sphere.

关键词： fiber suspension laminar flow tube containing a sphere orientation distribution Lattice Boltzmann Method (LBM)

PiWi proteins and their interactors in piRNA biogenesis,germline development and gene expression

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National Science Review 2014年第2期1卷 205-218页

作者： Hsueh-Yen ku Haifan Lin Yale Stem Cell Center and Department of Cell Biology Yale University School of Medicine

PiWi-interacting RNAs(piRNAs) are a complex class of small non-coding RNAs that are mostly 24–32nucleotides in length and composed of at least hundreds of thousands of species that speciically interact with the PiWi protein subfamily of the ARGONAUTE family. Recent studies revealed that PiWi proteins interact with a number of proteins, especially the TUDOR-domain-containing proteins, to regulate piRNA biogenesis and regulatory function. Current research also provides evidence that PiWi proteins and pi RNAs are not only crucial for transposon silencing in the germline, but also mediate novel mechanisms of epigenetic programming, DNA rearrangements, m RNA turnover, and translational control both in the germline and in the soma. hese new discoveries begin to reveal an exciting new dimension of gene regulation in the cell.

关键词： PiWi piRNA TDRD epigenetic RNA decay translational regulation

Friction factor and heat transfer of nanofluid in the turbulent flow through a 90°bend

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Journal of Hydrodynamics 2021年第6期33卷 1105-1118页

作者： Pei-jie Zhang Jian-zhong Lin Xiao-ke ku Department of Mechanics State Key Laboratory of Fluid Power and Mechatronic SystemZhejiang UniversityHangzhou 310027China

Heat transfer and energy performance of Al_(2)O_(3)/water nanofluid in a 90°bend with circular cross-section are investigated in the range of Reynolds number(Re)from 5000 to 30000,particle volume concentration(Φ)from 0.005%to 4%,Schmidt number(Sc)from 9870 to 296100,Dean number(De)from 6636 to *** momentum and energy equations of nanofluid together with the dynamic equation for nanoparticles are solved numerically with the particle convection,diffusion,coagulation and breakage taken into *** results are validated by comparing with the available experimental or numerical *** effect of Re,Φ,Sc and De on the friction factor and heat transfer of Al_(2)O_(3)/water nanofluidis *** results showed that the particle number decreases along the *** De,Sc leads to a decrease and increase ofΦ,*** mean particle diameter and particle polydispersity increase with increasing Debut with decreasing *** friction factor increases with increasingΦ,Sc De and Pr but with decreasing *** ratio of energy performance evaluation criterion(PEC)for the Al_(2)O_(3)/water nanofluid to the base fluid increases with increasing Re,Φand De,but with decreasing ***,the expression of ratio of energy PEC for the nanofluid to the base fluid as a function of Re,Φ,Sc and De is derived.

关键词： Al_(2)O_(3)/water nanofluid friction factor heat transfer energy performance evaluation turbulent pipe flow 90°bend numerical simulation