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Research on the Cultivation of Innovative Talents in Software Engineering Based on the OBE Concept

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计算机教育 2023年第12期 86-93页

作者： Huawei Li minquan wu Zheng Wang Hongmei Peng the School of Computer Science Wuhan UniversityWuhan430070China

Under the background of New Engineering,focusing on talent cultivation,this article explores the teaching reform and innovation of software engineering *** from the goal of cultivating software engineering talents in the context of New Engineering,the concept of outcome-based education is introduced to study and explore the construction of innovative talent training models for software engineering majors in *** recent years’application practice,initial results have been achieved,which can provide feasible methods and ideas for the cultivation of innovative talents in other majors.

关键词： New engineering OBE concept Software engineering majors Talent cultivation Experiment teaching Innovation and entrepreneurship

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固定床反应器内流动的研究

上海力学 1991年第4期12卷 43-52页

作者：吴民权黄发瑞华东化工学院

固定床反应器是化学工业中常用的反应设备。详细研究反应器内的流动,对提高反应器的性能很有意义。本文分别对轴向及径向固定床反应器内的流动作了分析。对轴向床反应器,它的主要问题是流经催化剂床层的流速分布不均匀。作者分析了其原... 详细信息

固定床反应器是化学工业中常用的反应设备。详细研究反应器内的流动,对提高反应器的性能很有意义。本文分别对轴向及径向固定床反应器内的流动作了分析。对轴向床反应器,它的主要问题是流经催化剂床层的流速分布不均匀。作者分析了其原因,提出了用组合式均布装置来解决流速均布的问题,並用冷模实验进行验证。实验结果表明,本装置可使催化剂床层上方截面上的流速分布,相对标准偏差<9％,均布装置的阻力系数ζ≈1.35。对径向床反应器,作者导得了反应器内流体流动的基本方程,並进行实验研究。研究结果表明,反应器结构型式、催化剂床层阻力系数、中心通道与环形通道的面积比以及反应器高径比是影响流经床层流速分布的主要因素。

关键词：固定床反应器流速流动反应器

A wavelength interval switchable erbium-doped fiber laser based on cascaded and parallel Lyot filters

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Optoelectronics Letters 2024年

作者： ZHANG Yinghui ZHOU Xuefang LAI minquan School of Communication Engineering， Hangzhou Dianzi University

This study presents the design of an erbium-doped fiber laser (EDFL) featuring switchable wavelength intervals achieved through the implementation of cascaded and parallel Lyot filters. The proposed laser system utilizes a cascaded and parallel configuration of three Lyot filters， facilitated by a polarization beam splitter (PBS) for branch switching. The transmission properties of the filter are analyzed through theoretical modeling and experimental validation using the transmission matrix method. The experimental results are found to be consistent with the theoretical predictions， demonstrating the effectiveness of the proposed design. By adjusting the polarization controllers (PCs)， the proposed laser can switch between wavelength spacings of 0.46 nm， 0.27 nm， and 0.76 nm， with a maximum optical signal-to-noise ratio (OSNR) of 38 dB. However， the stability of the laser with a 0.27 nm spacing is not high due to wavelength competition. Power fluctuation for 0.46nm and 0.76nm intervals is less than 0.93dB and 0.78dB in one hour， with wavelength fluctuation less than 0.068nm and 0.19nm， respectively. This EDFL has the advantages of simple structure， great flexibility， and switchability， which can be applied to fiber optic sensing， wavelength division multiplexing (WDM) networks， and other fields that require a very flexible light source.

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数据开采中的知识管理

计算机工程与应用 2001年第16期37卷 121-122,164页

作者：陈小萍王力隆吴闽泉武汉大学软件工程国家重点实验室武汉大学计算中心武汉430072

由于目前的许多数据开采算法可以开采出大量的关联规则、时序模式等，这样就提出对数据开采出的知识进行管理的问题。论文介绍一种基于模板的机制使得用户可以选取他们感兴趣的知识进行浏览，并且采用知识可视化的显示方法。

关键词：数据开采关联规则模板数据库知识管理

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Unix实时性研究

计算机工程 2001年第2期27卷 55-57页

作者：吴闽泉刘方早陈滋武汉大学软件工程国家重点实验室武汉430072

针对传统Unix在实时应用方面存在的主要问题进行了分析，讨论了Unix的实时特性和调度策略；并结合实际应用，通过附加一个实时库，增加一些实时功能的方法，阐述了Unix在实时I/O、内存管理、进程调度、时钟和定时器等方面的实现策略。

关键词： Unix 实时性定时器操作系统进程调度内存管理

Ballistic performances of the hourglass lattice sandwich structures under high-velocity fragments

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Defence Technology（防务技术） 2024年第1期31卷 312-325页

作者： He-xiang wu Jia Qu Lin-zhi wu Key Laboratory of Advanced Ship Materials and Mechanics College of Aerospace and Civil EngineeringHarbin Engineering UniversityHarbin150001China School of Civil Engineering Northeast Forestry UniversityHarbin150040China

In this paper,the numerical simulation method is used to study the ballistic performances of hourglass lattice sandwich structures with the same mass under the vertical incidence of *** is paid to elucidating the influences of rod cross-section dimensions,structure height,structure layer,and rod inclination angle on the deformation mode,ballistic performances,and ability to change the ballistic direction of *** results show that the ballistic performances of hourglass lattice sandwich structures are mainly affected by their structural *** this respect,structural parameters optimization of the hourglass lattice sandwich structures enable one to effectively improve their ballistic limit velocity and,consequently,ballistic performances.

关键词： Hourglass lattice sandwich structures Ballistic performances high-velocity Finite element analysis

Resilience-incorporated seismic risk assessment of precast concrete frames with“dry”connections

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Earthquake Engineering and Engineering Vibration 2024年第2期23卷 403-425页

作者： wu Chenhao Tang Yuchuan Cao Xuyang wu Gang Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education Nanjing 211102China Department of Civil and Environmental Engineering University of CaliforniaLos AngelesCA 90095USA School of Civil Engineering Southeast UniversityNanjing 211102China College of Civil and Transportation Engineering Hohai UniversityNanjing 210024China

A resilience-incorporated risk assessment framework is proposed and demonstrated in this study to manifest the advantageous seismic resilience of precast concrete frame(PCF)structures with“dry”connections in terms of their low damage and rapid *** framework integrates various uncertainties in the seismic hazard,fragility,capacity,demand,loss functions,and post-earthquake *** this study,the PCF structures are distinguished from ordinary reinforced concrete frame(RCF)structures by characterizing multiple limit states for the PCF based on its unique damage ***,probabilistic story-wise pushover analyses are performed to yield story-wise capacities for the predefined limit *** the seismic resilience analysis,a step-wise recovery model is proposed to idealize the functionality recovery process,with separate considerations of the repair and non-repair *** recovery model leverages the economic loss and downtime to delineate the stochastic post-earthquake recovery curves for the resilience loss *** such,contingencies in the probabilistic post-earthquake repairs are incorporated and the empirical judgments on the recovery parameters are largely *** proposed framework is demonstrated through a comparative study between two“dry”connected PCFs and one RCF designed as alternative structural systems for a prototype *** results from the risk quantification indicate that the PCFs show reduced loss hazards and lower expected losses relative to the ***,the PCF equipped with energy dissipation devices at the“dry”connections largely reduces the expected economic loss,downtime,and resilience loss by 29%,56%,and 60%,respectively,compared to the RCF.

关键词： precast concrete frame non-emulative precast system seismic resilience seismic risk functional recovery

New findings on the influence of El Nino events on tropical cyclone formation

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Science China Earth Sciences 2024年第3期67卷 892-893页

作者： Liguang wu Department of Atmospheric and Oceanic Sciences Institute of Atmospheric SciencesFudan UniversityShanghai 200438China

Tropical cyclones typically form over warm tropical and subtropical ocean surfaces, as their formation and intensification rely primarily on the energy provided by the ocean. Pioneering research by Gray (1968) revealed that the formation of tropical cyclones requires the sea surface temperature (SST) to be no less than 26.5℃. Consequently, SST is commonly recognized as a crucial parameter among the environmental factors influencing tropical cyclone formation(Gray, 1979;Emanuel and Nolan, 2004).

关键词： tropical cyclone ocean

Two-dimensional semiconductor heterostructures for photocatalytic CO_(2)conversion

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Science China Chemistry 2024年第8期67卷 2434-2447页

作者： Yang wu Mingyu wu Yongfu Sun Yi Xie Hefei National Research Center for Physical Sciences at Microscale University of Science and Technology of ChinaHefei 230026China

The CO_(2)reduction into carbon-contained fuel via solar energy offers the powerful tools to realize the zero-emission carbon *** to the intriguing features of the two-dimensional(2D)heterostructures,it is susceptible to modulate the electronic structure as well as the surface geometry for optimizing the photocatalytic CO_(2)*** this perspective,we surveyed the fundamental insights of 2D semiconductor heterostructures,involving the fabrication strategies and classification of the 2D semiconductor ***,we have detailly discussed the overview of 2D semiconductor heterostructure for optimizing CO_(2)photocatalytic influenced factors,including the solar energy utilization,photogenerated carriers separation,and redox reaction ***,we showed the significant advantages of 2D heterostructures in elevating CO_(2)photoreduction performance,focusing on activity,selectivity and *** analyzing the limitations and developments,we ended by putting forward insights into the further researches about the CO_(2)photocatalysts and reactor design,even industrial applications.

关键词： two-dimensional semiconductor heterostructures photocatalysis CO_(2)conversion