高职“Linux操作系统”课程建设与实践

以高职“Linux操作系统”课程为例,以专业教师、思政教师与企业导师相互配合,组建高素质结构化教学团队、建设“双师型”教师队伍为基础,以开发校企合编新型活页式教材、在线课程和数字化实训室等数字资源为载体,依托校企共建的“华为信息与网络技术学院”“北斗导航协同创新中心”,融入“云、大、物、智”等新一代信息技术,采用任务驱动、理实一体、行动导向教学理论开展教学。应用研究表明,课程实施教师、教法、教材的“三教”改革对培养学生的知识、技能、素质等方面有明显的促进作用,有效达成了人才培养既定教学目标。

基于虚拟机自省的Linux恶意软件检测方案

随着物联网和云计算技术的快速发展,Linux恶意软件的数量和种类急剧增加,因此如何有效检测Linux恶意软件成为安全领域的重要研究方向之一。为了解决这一问题,文章提出一种基于虚拟机自省的Linux恶意软件检测方案。该方案利用虚拟机自省技术在沙箱外部安全获取内部运行状态,在实现全方位监控的同时,规避了恶意软件的反动态分析问题。与其他沙箱监控方案相比,文章所提方案增加了恶意软件在沙箱中的恶意行为表现的数量。针对特征之间的时序性,采用时序处理模型对沙箱获取的特征信息进行建模和训练,旨在判断Linux应用是否属于恶意软件。文章使用了3种神经网络,包括循环神经网络、长短期记忆网络和门控循环单元网络。实验结果表明,长短期记忆网络在该应用场景下检测效果更好,准确率达98.02%,同时具有较高的召回率,将虚拟机自省技术与神经网络模型结合应用于恶意软件检测,既能在虚拟机外部监控虚拟机内部,又考虑特征之间的时序性。

高职《Linux操作系统应用》课程思政的设计与实践——以工匠精神为例

在高职院校专业课程教学中要重视课程思政,贯彻“各门课程都具有育人功能”的精神。本文通过在高职《Linux操作系统应用》课程教学中融入工匠精神,给出了高职专业课程课程思政的设计全过程,包括课前自我思政、课中沉浸思政、课后思政再强化三个环节,使学生逐步感受、认识,从而达到课程思政育人目标。

一种混合式架构的Linux实验室云广播教学系统的设计与实现

针对专业的Linux实验室,给出了一种基于“Windows+Linux”混合式架构的云广播教学系统的解决方案。利用KVM与Virtual Machine Manager构建了Linux实验室多虚拟机环境,提高了实验室PC机的利用率;借助于VNC及Xshell技术,实现了局域网内部Linux主机间的屏幕广播式教学,取代了传统的投影仪和幕布;通过设置双网络,将局域网内的机房教学转变成实时同步的云教学。该方案可以广泛应用于各院校的Linux专业实验室,具有很强的实践意义与推广价值。

Linux终端检测响应系统的文件防护绕过技术研究

目前,国内外很多厂商推出了Linux系统中的终端检测响应(Endpoint Detection and Response,EDR)系统,为云平台、物联网、大数据计算等基础设施提供全面的安全检测和防护服务。但是,针对EDR文件防护功能的绕过攻击能够帮助恶意行为规避监控,造成严重的系统和数据安全风险。针对开源和商业闭源的Linux EDR系统,首先,阐述了文件防护功能的底层实现机制,对其核心技术原理进行了分析;其次,重点梳理了4种现有公开的文件防护绕过技术,提出了3种尚未公开的绕过技术,并且总结提炼为3种攻击类型;再次,基于上述绕过技术编写了验证工具,通过测试证明了这些技术方法对于部分Linux EDR系统的文件防护绕过能力;最后,给出了相应的安全防护建议。

MicroMagnetic.jl:A Julia package for micromagnetic and atomistic simulations with GPU support

MicroMagnetic.jl is an open-source Julia package for micromagnetic and atomistic simulations.Using the features of the Julia programming language,MicroMagnetic.jl supports CPU and various GPU platforms,including NVIDIA,AMD,Intel,and Apple GPUs.Moreover,MicroMagnetic.jl supports Monte Carlo simulations for atomistic models and implements the nudged-elastic-band method for energy barrier computations.With built-in support for double and single precision modes and a design allowing easy extensibility to add new features,MicroMagnetic.jl provides a versatile toolset for researchers in micromagnetics and atomistic simulations.

Machine learning-enhanced Monte Carlo and subset simulations for advanced risk assessment in transportation infrastructure

The maintenance of safety and dependability in rail and road embankments is of utmost importance in order to facilitate the smooth operation of transportation networks.This study introduces a comprehensive methodology for soil slope stability evaluation,employing Monte Carlo Simulation(MCS)and Subset Simulation(SS)with the"UPSS 3.0 Add-in"in MS-Excel.Focused on an 11.693-meter embankment with a soil slope(inclination ratio of 2H:1V),the investigation considers earthquake coefficients(kh)and pore water pressure ratios(ru)following Indian zoning requirements.The chance of slope failure showed a considerable increase as the Coefficient of Variation(COV),seismic coefficients(kh),and pore water pressure ratios(ru)experienced an escalation.The SS approach showed exceptional efficacy in calculating odds of failure that are notably low.Within computational modeling,the study optimized the worst-case scenario using ANFIS-GA,ANFIS-GWO,ANFIS-PSO,and ANFIS-BBO models.The ANFIS-PSO model exhibits exceptional accuracy(training R2=0.9011,RMSE=0.0549;testing R2=0.8968,RMSE=0.0615),emerging as the most promising.This study highlights the significance of conducting thorough risk assessments and offers practical insights into evaluating and improving the stability of soil slopes in transportation infrastructure.These findings contribute to the enhancement of safety and reliability in real-world situations.

基于线上线下混合式教育的LINUX操作系统课程思政探索与实践

“课程思政”是实现“立德树人”根本任务的重要举措。近年来,课程团队基于线上线下混合式教学模式开展了LINUX操作系统课程思政的探索和实践。从课程目标、教师教学能力、线上线下教学各个环节等方面全程全方位将课程思政有机融入,旨在培养“德才兼备”LINUX操作系统人才。

基于云平台和Linux的虚拟FTP服务器搭建方法研究

重要事件的复盘分析工作需要以该过程中的关键数据作为支撑,为了解决利用移动载体、文件共享等方式进行数据传递复杂繁琐且存在安全风险的问题,利用数据中心云平台搭建了基于Linux操作系统的虚拟FTP服务器。依托云平台进行了创建虚拟机实例、安装Linux系统和配置FTP服务等过程,并在实验室环境下对搭建的虚拟FTP服务器进行了用户权限和文件传输功能测试,结果表明,该FTP服务器能够实现对用户的差异化赋权,文件上传和下载速率分别能够达到71.31 MB/s和44.64 MB/s,满足了复盘分析工作的实际需求,达到了预期的设计目标。

Multi-scenario Simulation of the Impact of Land Use Change on the Ecosystem Service Value in the Suzhou-Wuxi-Changzhou Metropolitan Area,China

As the most economically developed metropolitan area in China’s Yangtze River Delta,the rapid changing land use patterns of Suzhou-Wuxi-Changzhou(Su-Xi-Chang) metropolitan area have profound impacts on the ecosystem service value(ESV).Based on the patterns of land use change and the ESV change in Su-Xi-Chang metropolitan area from 2000 to 2020,we set up four scenarios:natural development scenario,urban development scenario,arable land protection scenario and ecological protection scenario,and simulated the impact of land use changes on the ESV in these scenarios.The results showed that:1) the area of built-up land in the Su-XiChang metropolitan area increased significantly from 2000 to 2020,and the area of other types of land decreased.Arable land underwent the highest transfer-out area,and was primarily converted into built-up land.The total ESV of Su-Xi-Chang metropolitan area increased initially then declined from 2000–2020,and the value of almost all individual ecosystem services decreased.2) Population density,GDP per area,night lighting intensity,and road network density can negatively impact the ESV.3) The total ESV loss under the natural development and urban development scenarios was high,and the expansion of the built-up land and the drastic shrinkage of the arable land contributed to the ESV decline under both scenarios.The total ESV under arable land protection and ecological protection scenarios increases,and therefore these scenarios are suitable for future land use optimization in Su-Xi-Chang.This study could provide a certain reference for land use planning and allocation,and offer guidance for the rational allocation of land resources.

Multi-scenario Simulation and Spatial-temporal Analysis of LUCC in China's Coastal Zone Based on Coupled SD-FLUS Model

Increased human activities in China's coastal zone have resulted in the depletion of ecological land resources.Thus,conducting current and future multi-scenario simulation research on land use and land cover change(LUCC)is crucial for guiding the healthy and sustainable development of coastal zones.System dynamic(SD)-future land use simulation(FLUS)model,a coupled simulation model,was developed to analyze land use dynamics in China's coastal zone.This model encompasses five scenarios,namely,SSP1-RCP2.6(A),SSP2-RCP4.5(B),SSP3-RCP4.5(C),SSP4-RCP4.5(D),and SSP5-RCP8.5(E).The SD model simulates land use demand on an annual basis up to the year 2100.Subsequently,the FLUS model determines the spatial distribution of land use for the near term(2035),medium term(2050),and long term(2100).Results reveal a slowing trend in land use changes in China's coastal zone from 2000–2020.Among these changes,the expansion rate of construction land was the highest and exhibited an annual decrease.By 2100,land use predictions exhibit high accuracy,and notable differences are observed in trends across scenarios.In summary,the expansion of production,living,and ecological spaces toward the sea remains prominent.Scenario A emphasizes reduced land resource dependence,benefiting ecological land protection.Scenario B witnesses an intensified expansion of artificial wetlands.Scenario C sees substantial land needs for living and production,while Scenario D shows coastal forest and grassland shrinkage.Lastly,in Scenario E,the conflict between humans and land intensifies.This study presents pertinent recommendations for the future development,utilization,and management of coastal areas in China.The research contributes valuable scientific support for informed,long-term strategic decision making within coastal regions.

物联网工程专业Linux操作系统课程教学改革与实践

Linux操作系统由于其开源、高效、灵活和安全等优异特点,在服务器、移动设备、超级计算机、嵌入式和桌面操作系统等信息化领域得到广泛应用。鉴于Linux在信息化领域的重要地位,很多高校的计算机相关专业都开设Linux操作系统课程。因每个专业培养方案和培养目标不同,所以Linux课程的开设在其内容和培养方式也应体现出一定的差异性,文章针对物联网工程专业需要,提出Linux操作系统课程教学改革的方向和教学实践,使Linux课程教学更能符合物联网工程对Linux应用的培养要求,从而让Linux操作系统的课程教学为物联网工程专业培养的学生发挥更大的作用。

Linux系统管理课程思政建设实践探析

文章介绍了高职院校立德树人工作面临的新境遇、新诉求、新挑战。课程思政作为解决思想政治教育问题的一种方式已经在高校教学中得到普遍应用。课程思政的实施面临一些问题,如何挖掘课程的思政元素,让课程思政更有实际意义,如何将课程思政灵活应用到实际教学中?文章围绕这些问题,以Linux系统管理为例,对课程思政建设进行实践探析,包括:课程思政建设的思路;课程思政的实施,其步骤包括:课程建设前期的思政目标,建设过程中探索如何挖掘课程相关的思政元素,课程教学过程中如何运用这些思政元素;最后讲述实践考核过程中如何加入思政内容,以增强学习效果,达到学生在学习专业知识的同时还能树立正确的价值观、人生观和世界观,达到人才培养的目的。

基于教学能力大赛的Linux应用基础课程教学设计与实施

基于全国职业院校技能大赛教学能力比赛方案的要求,对Linux应用基础课程进行内容重构,选取16课时在模块化设计思路、学情分析、教学目标与重难点、教学策略、课程思政和教学评价等方面进行探索与设计,并通过线上线下相结合的混合式教学模式实施教学,通过改革培养学生的实践动手能力,全面提升学生的职业核心能力。

Integrating AnyLogic Simulation in Emergency Evacuation Management for Enhanced Security

This study introduces an innovative approach by integrating AnyLogic simulation into emergency evacuation strategies to enhance security protocols.The research focuses on leveraging advanced computational models to simulate and optimize evacuation scenarios in various settings,including public venues,residential areas,and urban environments.By integrating real-world data and behavioral models,the simulation accurately represents human movements,decision-making processes,and traffic flow dynamics during evacuation scenarios.The study evaluates the effectiveness of various evacuation strategies,including route planning,crowd behavior,and emergency response coordination,using a scenario-driven approach within the AnyLogic simulation environment.Furthermore,this research contributes to the establishment of optimized emergency response protocols by systematically evaluating and refining evacuation plans.The research frameworks mentioned in the research imply the efficient use of the AnyLogic simulation model to be used in different sectors and fields to enhance the strategies for saving lives and implementing an efficient evacuation management system.

对象驱动的Linux内核crash分类技术研究

Crash(程序崩溃)分析是漏洞挖掘与利用的关键阶段,精准的crash分类是crash分析和漏洞利用的前提.针对现有的Linux内核crash存在大量重复的问题,本文提出一种对象驱动的Linux内核crash分类方法.该方法将内核crash与内核对象的关系建模为二部图结构,从而将crash分类问题转化为内核对象的相似性对比问题.首先,通过对crash执行后向污点分析提取crash相关的内核对象;其次,构造内核对象调用图计算内核与根本原因的相关性度量;最后,基于上述结果构造二部图实现crash相似性比较算法.基于上述方法,本文开发出了Linux内核crash分类的原型系统.通过在真实的数据集上进行实验,验证了系统的有效性和可用性,弥补了现有分类方法粒度较粗,存在误报较多的问题.

Linux内核下Ansible自动化运维技术探讨

随着移动互联网的普及,移动设备上部署的应用越来越多,应用程序的数量也在不断增加。随着应用数量的增多,其运维管理也面临着新的挑战。例如,在应用程序增多之后,如何提高用户体验,确保服务质量;如何减少系统的负荷,提高系统的稳定性;如何降低运营成本等。自动化运维技术能使我们摆脱重复性劳动,把更多的精力投入到有价值的工作中去。

基于Plant Simulation的化纤自动落丝系统仿真实验分析

基于Plant Simulation软件,构建一种化纤自动落丝系统的3D数字化模型,对系统效率关键输入因子进行参数化设置,将系统各工位三维数字模型导入软件中建立层次化运动机构图形结构,并运用Simltalk语言实现三维动作仿真,通过基础物理参数设置,保证了仿真数字化模型与现实系统更具一致性。通过多级实验设计分析了系统影响因子对于系统效率的影响特性曲线,并进一步通过动态参数化实验方法,计算出双输入因子对系统效能影响的敏感度。该实验结果可为化纤自动落丝系统的建设成本控制与可行性分析提供指导,具有较好的工程应用价值。

基于Plant Simulation的压气机叶片型线加工产线分析与优化

运用专业仿真软件Plant Simulation,根据压气机叶片型线机械加工工艺特点和物料运行流程建立生产线仿真模型,从产能、设备利用率及产线瓶颈等多方面进行仿真分析与优化。结果表明:Plant Simulation仿真平台的仿真可以找出规划设计方案中存在的问题并验证方案的合理性。该仿真结果为型线机械加工产线的优化设计提供了可靠依据,达到了节约投资成本和缩短设计周期的目的。

Exhaustive review of acceleration strategies for Monte Carlo simulations in photon transit

Monte Carlo simulation techniques have become the quintessence and a pivotal nexus of inquiry in the realm of simulating photon movement within biological fabrics.Through the stochastic sampling of tissue archetypes delineated by explicit optical characteristics,Monte Carlo simulations possess the theoretical capacity to render unparalleled accuracy in the depiction of exceedingly intricate phenomena.Nonetheless,the quintessential challenge associated with Monte Carlo simulation methodologies resides in their extended computational duration,which significantly impedes the re¯nement of their precision.Consequently,this discourse is speci¯cally dedicated to exploring innovations in strategies and technologies aimed at expediting Monte Carlo simulations.It delves into the foundational concepts of various acceleration tactics,evaluates these strategies concerning their speed,accuracy,and practicality,and amalgamates a comprehensive overview and critique of acceleration methodologies for Monte Carlo simulations.Ultimately,the discourse envisages prospective trajectories for the employment of Monte Carlo techniques within the domain of tissue optics.