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多维深度导向的Java Web模糊测试方法 被引量:3
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作者 王鹃 龚家新 +1 位作者 蔺子卿 张晓娟 《信息网络安全》 CSCD 北大核心 2024年第2期282-292,共11页
随着Java Web的广泛应用,其安全问题日益突出。模糊测试作为一种有效的漏洞挖掘方法,目前已经被用于Java漏洞的检测。然而,由于Java Web应用代码规模庞大、业务逻辑复杂,现有的漏洞挖掘工具在模糊测试中存在随机性高、代码检测深度低的... 随着Java Web的广泛应用,其安全问题日益突出。模糊测试作为一种有效的漏洞挖掘方法,目前已经被用于Java漏洞的检测。然而,由于Java Web应用代码规模庞大、业务逻辑复杂,现有的漏洞挖掘工具在模糊测试中存在随机性高、代码检测深度低的问题,导致漏洞挖掘的准确率较低。因此,文章提出基于多维深度导向的Java Web模糊测试方法。该方法使用Jimple作为待测Java Web应用字节码的三地址码中间表示,并生成代码对应的函数间调用图和函数内控制流图,在此基础上分析每个基本块的多维深度。同时,根据多维深度和模糊测试执行时间优化模糊测试指导策略,设计相应的输入结构解析策略、能量分配策略和变异算法调度策略,提升模糊测试的准确性。实验结果表明,相较于现有的模糊测试工具Peach和Kelinci,该方法能够在性能消耗较低的情况下取得更好的漏洞检测效果。 展开更多
关键词 模糊测试 Java web 漏洞挖掘
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以效果为导向的Java Web课程思政探索
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作者 余晓平 李志刚 +1 位作者 高攀 刘雅辉 《计算机教育》 2024年第5期123-127,共5页
针对课程思政存在的问题,依据Java Web课程的教学内容、应用背景以及企业招聘要求,提出以学生为中心、以效果为导向、知行合一的课程思政教学方法,具体阐述如何将知识传授、能力培养和价值塑造与学生的职业发展相结合,切实将课程思政做... 针对课程思政存在的问题,依据Java Web课程的教学内容、应用背景以及企业招聘要求,提出以学生为中心、以效果为导向、知行合一的课程思政教学方法,具体阐述如何将知识传授、能力培养和价值塑造与学生的职业发展相结合,切实将课程思政做到实处,以达到课程思政内化于心、外化于行的教学效果。 展开更多
关键词 Java web 课程思政 效果导向 评价驱动
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基于Java Web技术的校园论坛网页的设计与实现
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作者 庄丽君 汤海林 《现代信息科技》 2024年第15期74-77,共4页
随着网络技术的快速发展,校园论坛打破了传统人与人之间的交流方式,可为广大师生提供更为丰富、自由、便捷的交流与沟通渠道,用户可以在校园论坛上自由分享、交流互动等。文章设计并实现一个基于Java Web技术的校园论坛网页,以方便广大... 随着网络技术的快速发展,校园论坛打破了传统人与人之间的交流方式,可为广大师生提供更为丰富、自由、便捷的交流与沟通渠道,用户可以在校园论坛上自由分享、交流互动等。文章设计并实现一个基于Java Web技术的校园论坛网页,以方便广大师生进行学术交流和社交互动。该校园论坛基于Java Web技术而开发,采用B/S设计模式,使用JSP+CSS技术设计美化界面,运用JDBC连接关系型数据库MySQL。实现了登录注册模块、用户交流模块、帖子模块、用户管理模块、校园互助管理模块等。经过严格的测试和验证,该校园论坛在各项功能上均达到了预期目标,安全性和实用性俱佳,能够为广大师生提供一个良好的在线交流虚拟社交平台。 展开更多
关键词 Java web 校园论坛 网页设计
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刍议Java Web在智慧农业物联网中的应用
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作者 杜朋轩 曹梦川 +2 位作者 伍丹 张婷 石志刚 《科技资讯》 2024年第1期148-151,共4页
作为农业大国,我国经过多年的发展已从单一的产业模式发展为综合化产业模式,并且随着科学和信息技术的发展,“互联网+”已逐渐应用到农业产业中以满足当前社会生活的需求。互联网技术包括物联网、云计算、大数据以及人工智能等,通过将... 作为农业大国,我国经过多年的发展已从单一的产业模式发展为综合化产业模式,并且随着科学和信息技术的发展,“互联网+”已逐渐应用到农业产业中以满足当前社会生活的需求。互联网技术包括物联网、云计算、大数据以及人工智能等,通过将其与传统农业结合在一起,衍生出“智慧农业”的新产业,有效地改变了传统农业产业结构单一、生产技术落后、生态系统功效失调等问题。因此,以Java Web为基础,对物联网在智慧农业中的应用进行研究,以此来为物联网的应用以及智慧农业的发展提供参考。 展开更多
关键词 智慧农业 物联网 Java web 信息技术
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DSN-BR-Based Online Inspection Method and Application for Surface Defects of Pharmaceutical Products in Aluminum-Plastic Blister Packages
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作者 Mingzhou Liu Yu Gong +2 位作者 Xiaoqiao Wang Conghu Liu Jing Hu 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2024年第4期194-214,共21页
Ensuring high product quality is of paramount importance in pharmaceutical drug manufacturing,as it is subject to rigorous regulatory practices.This study presents a research focused on the development of an on-line d... Ensuring high product quality is of paramount importance in pharmaceutical drug manufacturing,as it is subject to rigorous regulatory practices.This study presents a research focused on the development of an on-line detection method and system for identifying surface defects in pharmaceutical products packaged in aluminum-plastic blisters.Firstly,the aluminum-plastic blister packages exhibit multi-scale features and inter-class indistinction.To address this,the deep semantic network with boundary refinement(DSN-BR)model is proposed,which leverages semantic segmentation domain knowledge,to accurately segment the defects in pixel level.Additionally,a specialized image acquisition module that minimizes the impact of ambient light is established,ensuring high-quality image capture.Finally,the image acquisition module,image detection module,and data management module are designed to construct a comprehensive online surface defect detection system.To validate the effectiveness of our approach,we employ a real dataset for instance verification on the implemented system.The experimental results substantiate the outstanding performance of the DSN-BR,achieving the mean intersection over union(MIoU)of 90.5%.Furthermore,the proposed system achieves an inference speed of up to 14.12 f/s,while attaining an F1-Score of 98.25%.These results demonstrate that the system meets the actual needs of the enterprise and provides theoretical and methodological support for intelligent inspection of product surface quality.By standardizing the control process of pharmaceutical manufacturing and improving the management capability of the manufacturing process,our approach holds significant market application prospects. 展开更多
关键词 Surface defect detection system Deep learning Semantic segmentation Aluminum-plastic blister packages identification
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Blue rubber blister nevus syndrome: A case report
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作者 Wen-Jing Wang Pei-Li Chen Huan-Zhang Shao 《World Journal of Gastrointestinal Surgery》 SCIE 2024年第11期3584-3589,共6页
BACKGROUND Blue rubber blister nevus syndrome(BRBNS)is a congenital,rare disease charac-terized by venous malformations of the skin and internal organs,affecting all systems throughout the body.The pathogenesis is unk... BACKGROUND Blue rubber blister nevus syndrome(BRBNS)is a congenital,rare disease charac-terized by venous malformations of the skin and internal organs,affecting all systems throughout the body.The pathogenesis is unknown.There is no con-sensus on the treatment of BRBNS.Most of the previously reported cases were mild to moderate with a good prognosis,and this case was a critically ill patient with severe gastrointestinal hemorrhage,disseminated intravascular coagulation(DIC),and severe joint fusion that was different from previously reported cases.CASE SUMMARY An 18-year-old man with early onset of BRBNS in early childhood is reported.He presented with recurrent melena and underwent malformed phlebectomy and partial jejunectomy and ileal resection.The patient had melena before and after surgery.After active treatment,the patient's gastrointestinal bleeding improved.This was a case of atypical BRBNS with severe gastrointestinal bleeding and severe joint fusion,which should be differentiated from other serious joint lesions and provide clinicians with better understanding of this rare disease.CONCLUSION This case of critical BRBNS with gastrointestinal hemorrhage,DIC and severe joint fusion provides further understanding of this rare disease. 展开更多
关键词 Blue rubber blister nevus syndrome Gastrointestinal hemorrhage Joint fusion Maffucci's syndrome Case report
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Java Web项目实践课教学改革探索与实践——“知识–能力–素质”三位一体教学方法
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作者 宋文凤 侯霞 《创新教育研究》 2024年第10期463-467,共5页
针对Java Web课程实践教学的现状和不足,分析了产业发展对复合型IT人才“知识–能力–素质”培养的要求。提出基于真实项目驱动的教学改革方案,采用情境式项目导入、小组协作开发、教师引导和点评等教学策略,引导学生在真实项目情境中... 针对Java Web课程实践教学的现状和不足,分析了产业发展对复合型IT人才“知识–能力–素质”培养的要求。提出基于真实项目驱动的教学改革方案,采用情境式项目导入、小组协作开发、教师引导和点评等教学策略,引导学生在真实项目情境中主动构建知识体系,提升技术应用和问题解决能力。同时,将职业素养融入项目实践全过程考核,促进学生系统思维、团队协作、创新意识等职业素质的养成。教学实践表明,该教学模式有效提高了学生的学习兴趣和实践能力,为培养符合产业需求的高素质应用型IT人才探索了有效路径。In light of the current state and shortcomings of practical teaching in Java Web courses, this paper analyzes the requirements for cultivating “knowledge-ability-quality” in interdisciplinary IT talent demanded by industry development. A teaching reform plan driven by real projects is proposed, employing teaching strategies such as situational project introduction, group collaborative development, teacher guidance, and feedback. These strategies aim to guide students in actively constructing their knowledge systems within real project contexts, thereby enhancing their technical application and problem-solving skills. Furthermore, professional qualities are integrated into the entire process of project practice assessment to foster the development of students’ systematic thinking, teamwork, and innovative awareness. Teaching practice has shown that this teaching model effectively increases students’ learning interest and practical ability, exploring an effective path for cultivating high-quality, application-oriented IT talent that meets industry demands. 展开更多
关键词 Java web项目教学 三位一体 教学改革
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基于Java Web的班级信息管理系统的设计与实现
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作者 吴敏 《中国新通信》 2024年第7期74-76,共3页
为了提高班级信息管理水平,实现规范管理、快速查询、科学统计班级相关信息,并满足辅导员、班主任等管理人员管理班级的需要,本文介绍了一种基于Java Web的班级信息管理系统。该系统采用Eclipse进行Java Web开发,以MySQL数据库作为后台... 为了提高班级信息管理水平,实现规范管理、快速查询、科学统计班级相关信息,并满足辅导员、班主任等管理人员管理班级的需要,本文介绍了一种基于Java Web的班级信息管理系统。该系统采用Eclipse进行Java Web开发,以MySQL数据库作为后台数据存储平台,用Java语言进行编程,并使用Tomcat服务器来构建应用程序的运行环境。该系统可以实现班级信息的增删改查、成绩的录入、查询和统计、课程的添加、删除、修改和查询等功能。 展开更多
关键词 班级信息管理系统 Java web ECLIPSE MYSQL
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“HTML5+CSS3 WEB前端设计”课程思政的融入现状
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作者 于平 《黑龙江科学》 2024年第13期147-149,共3页
为探究“HTML5+CSS3 WEB前端设计”课程思政融入现状,以学习“HTML5+CSS3 WEB前端设计”课程的学生为调研对象,通过学生视角了解学校“HTML5+CSS3 WEB前端设计”课程思政的融入效果。结果显示,“HTML5+CSS3 WEB前端设计”课程思政融入... 为探究“HTML5+CSS3 WEB前端设计”课程思政融入现状,以学习“HTML5+CSS3 WEB前端设计”课程的学生为调研对象,通过学生视角了解学校“HTML5+CSS3 WEB前端设计”课程思政的融入效果。结果显示,“HTML5+CSS3 WEB前端设计”课程思政融入效果较好,主要体现在课程教师素养、教学过程与教学效果三方面,其中教师素养虽高于中等水平但提升速度相对较慢。“HTML5+CSS3 WEB前端设计”课程思政融入效果、教师素养、教学过程与教学效果在是否参加过相关竞赛和年级上存在显著性差异。基于此,学校应优化课程思政教学资源,满足教师课程思政能力发展的需求;应组织课程思政教学能力大赛,实现以赛促教。 展开更多
关键词 “HTML5+CSS3 web前端设计”课程 课程思政 大学生
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FL-Online:An x-ray crystallographic web-server for atomic-scale structure analysis of biomolecule
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作者 王宾堂 牛彤欣 +1 位作者 范海福 丁玮 《Chinese Physics B》 SCIE EI CAS CSCD 2024年第7期37-42,共6页
FL-Online(http://fanlab.ac.cn) is an out-of-box modern web service featuring a user-friendly interface and simplified parameters, providing academic users with access to a series of online programs for biomolecular cr... FL-Online(http://fanlab.ac.cn) is an out-of-box modern web service featuring a user-friendly interface and simplified parameters, providing academic users with access to a series of online programs for biomolecular crystallography, including SAPI-online, OASIS-online, C-IPCAS-online and a series of upcoming software releases. Meanwhile, it is a highly scalable and maintainable web application framework that provides a powerful and flexible solution for academic web development needs. All the codes are open-source under MIT licenses in GitHub. 展开更多
关键词 graphical web service OASIS IPCAS direct methods protein crystallography
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Temporal variations of food web in a marine bay ecosystem based on LIM-MCMC model
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作者 Pengcheng Li Hu Zhang +4 位作者 Chongliang Zhang Binduo Xu Yupeng Ji Yiping Ren Ying Xue 《Acta Oceanologica Sinica》 SCIE CAS CSCD 2024年第8期79-88,共10页
Climate change has led to significant fluctuations in marine ecosystems,including alterations in the structure and function of food webs and ecosystem status.Coastal ecosystems are critical to the functioning of the e... Climate change has led to significant fluctuations in marine ecosystems,including alterations in the structure and function of food webs and ecosystem status.Coastal ecosystems are critical to the functioning of the earth’s lifesupporting systems.However,temporal variations in most of these ecosystems have remained unclear so far.In this study,we employed a linear inverse model with Markov Chain Monte Carlo(LIM-MCMC)combined with ecological network analysis to reveal the temporal variations of the food web in Haizhou Bay of China.Food webs were constructed based on diet composition data in this ecosystem during the year of 2011 and 2018.Results indicated that there were obvious temporal variations in the composition of food webs in autumn of 2011 and 2018.The number of prey and predators for most species in food web decreased in 2018 compared with 2011,especially for Trichiurus lepturus,zooplankton,Amblychaeturichthys hexanema,and Loligo sp.Ecological network analysis showed that the complexity of food web structure could be reflected by comprehensive analysis of compartmentalized indicators.Haizhou Bay ecosystem was more mature and stable in 2011,while the ecosystem’s self-sustainability and recovery from disturbances were accelerated from 2011 to 2018.These findings contribute to our understanding of the dynamics of marine ecosystems and highlight the importance of comprehensive analysis of marine food webs.This work provides a framework for assessing and comparing temporal variations in marine ecosystems,which provides essential information and scientific guidance for the Ecosystem-based Fisheries Management. 展开更多
关键词 LIM-MCMC ecological network analysis marine ecosystem food web
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Fine-mapping of a candidate gene for web blotch resistance in Arachis hypogaea L.
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作者 Xiaohui Wu Mengyuan Zhang +11 位作者 Zheng Zheng Ziqi Sun Feiyan Qi Hua Liu Juan Wang Mengmeng Wang Ruifang Zhao Yue Wu Xiao Wang Hongfei Liu Wenzhao Dong Xinyou Zhang 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2024年第5期1494-1506,共13页
Peanut(Arachis hypogaea L.)is a globally important oil crop.Web blotch is one of the most important foliar diseases affecting peanut,which results in serious yield losses worldwide.Breeding web blotch-resistant peanut... Peanut(Arachis hypogaea L.)is a globally important oil crop.Web blotch is one of the most important foliar diseases affecting peanut,which results in serious yield losses worldwide.Breeding web blotch-resistant peanut varieties is the most effective and economically viable method for minimizing yield losses due to web blotch.In the current study,a bulked segregant analysis with next-generation sequencing was used to analyze an F2:3 segregating population and identify candidate loci related to web blotch resistance.Based on the fine-mapping of the candidate genomic interval using kompetitive allele-specific PCR(KASP)markers,we identified a novel web blotch resistance-related locus spanning approximately 169 kb on chromosome 16.This region included four annotated genes,of which only Arahy.35VVQ3 had a non-synonymous single nucleotide polymorphism in the coding region between the two parents.Two markers(Chr.16.12872635 and Chr.16.12966357)linked to this gene were shown to be co-segregated with the resistance of peanut web blotch by 72 randomly selected recombinant inbred lines(RIL),which could be used in marker-assisted breeding of resistant peanut varieties. 展开更多
关键词 peanut web blotch bulked segregant analysis KAsP markers resistant gene
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Impacts of Aggregation Methods and Trophospecies Number on the Structure and Function of Marine Food Webs
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作者 LI Pengcheng ZHANG Chongliang +4 位作者 XU Binduo JI Yupeng LI Fan REN Yiping XUE Ying 《Journal of Ocean University of China》 CAS CSCD 2024年第1期190-198,共9页
Aggregation of species with similar ecological properties is one of the effective methods to simplify food web researches.However,species aggregation will affect not only the complexity of modeling process but also th... Aggregation of species with similar ecological properties is one of the effective methods to simplify food web researches.However,species aggregation will affect not only the complexity of modeling process but also the accuracy of models’outputs.Selection of aggregation methods and the number of trophospecies are the keys to study the simplification of food web.In this study,three aggregation methods,including taxonomic aggregation(TA),structural equivalence aggregation(SEA),and self-organizing maps(SOM),were analyzed and compared with the linear inverse model–Markov Chain Monte Carlo(LIM-MCMC)model.Impacts of aggregation methods and trophospecies number on food webs were evaluated based on the robustness and unitless of ecological net-work indices.Results showed that aggregation method of SEA performed better than the other two methods in estimating food web structure and function indices.The effects of aggregation methods were driven by the differences in species aggregation principles,which will alter food web structure and function through the redistribution of energy flow.According to the results of mean absolute percentage error(MAPE)which can be applied to evaluate the accuracy of the model,we found that MAPE in food web indices will increase with the reducing trophospecies number,and MAPE in food web function indices were smaller and more stable than those in food web structure indices.Therefore,trade-off between simplifying food webs and reflecting the status of ecosystem should be con-sidered in food web studies.These findings highlight the importance of aggregation methods and trophospecies number in the analy-sis of food web simplification.This study provided a framework to explore the extent to which food web models are affected by dif-ferent species aggregation,and will provide scientific basis for the construction of food webs. 展开更多
关键词 LIM-MCMC model species aggregation trophospecies number aggregation methods food web indices
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基于Java Web的银行业务预约系统设计与实现
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作者 袁满峥 杨凯 徐浡森 《现代计算机》 2024年第10期85-90,共6页
随着中国居民可支配收入的不断提高,个人金融产品和企业服务的需求大量提高,越来越多的相关业务需要去银行办理,开发线上银行业务预约系统已然成为现实。基于Java Web对银行业务预约系统进行研究,在提高银行业务办理效率的同时,节省用... 随着中国居民可支配收入的不断提高,个人金融产品和企业服务的需求大量提高,越来越多的相关业务需要去银行办理,开发线上银行业务预约系统已然成为现实。基于Java Web对银行业务预约系统进行研究,在提高银行业务办理效率的同时,节省用户排队等候的时间。 展开更多
关键词 Java web 预约系统 银行业务
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基于Java Web的SSM在线考试系统设计
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作者 金江 《现代信息科技》 2024年第17期105-110,共6页
随着互联网技术的迅速发展,基于Java Web的在线考试系统逐渐成为教育教学领域中不可或缺的工具。文章针对这一需求,设计并实现了一种基于SSM框架的在线考试系统。该系统充分利用了Spring框架的IoC和AOP特性,实现了模块化的设计与开发,... 随着互联网技术的迅速发展,基于Java Web的在线考试系统逐渐成为教育教学领域中不可或缺的工具。文章针对这一需求,设计并实现了一种基于SSM框架的在线考试系统。该系统充分利用了Spring框架的IoC和AOP特性,实现了模块化的设计与开发,极大地提高了系统的灵活性和扩展性。同时,采用SpringMVC框架实现了清晰的分层架构,使得系统具备良好的可维护性和可扩展性。作为持久层框架的MyBatis则实现了与数据库的高效交互,保证了系统的稳定性和性能。 展开更多
关键词 在线考试系统 模块化设计 分层架构 Java web SSM
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Framework to Model User Request Access Patterns in the World Wide Web
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作者 Richard Hurley Robert Sturgeon 《Journal of Software Engineering and Applications》 2024年第2期69-88,共20页
In this paper, we present a novel approach to model user request patterns in the World Wide Web. Instead of focusing on the user traffic for web pages, we capture the user interaction at the object level of the web pa... In this paper, we present a novel approach to model user request patterns in the World Wide Web. Instead of focusing on the user traffic for web pages, we capture the user interaction at the object level of the web pages. Our framework model consists of three sub-models: one for user file access, one for web pages, and one for storage servers. Web pages are assumed to consist of different types and sizes of objects, which are characterized using several categories: articles, media, and mosaics. The model is implemented with a discrete event simulation and then used to investigate the performance of our system over a variety of parameters in our model. Our performance measure of choice is mean response time and by varying the composition of web pages through our categories, we find that our framework model is able to capture a wide range of conditions that serve as a basis for generating a variety of user request patterns. In addition, we are able to establish a set of parameters that can be used as base cases. One of the goals of this research is for the framework model to be general enough that the parameters can be varied such that it can serve as input for investigating other distributed applications that require the generation of user request access patterns. 展开更多
关键词 Performance Modelling World Wide web SIMULATION User Request Access Patterns FRAMEWORK
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基于Java Web的高校科研成果管理系统的设计与实现
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作者 杨明 《移动信息》 2024年第6期254-256,共3页
文中探讨了基于Java Web技术的高校科研成果管理系统。首先对系统总体进行了设计,包括功能需求分析、系统架构设计及数据库设计。其次,介绍了关键技术与工具的选择与应用,包括Java Web开发框架、前端技术、数据库管理与持久化技术以及... 文中探讨了基于Java Web技术的高校科研成果管理系统。首先对系统总体进行了设计,包括功能需求分析、系统架构设计及数据库设计。其次,介绍了关键技术与工具的选择与应用,包括Java Web开发框架、前端技术、数据库管理与持久化技术以及安全与权限管理方案。最后,通过分析系统的应用情况,指出了存在的问题及改进方向,为高校科研成果管理系统的进一步优化提供了参考。 展开更多
关键词 Java web技术 高校科研成果 管理系统 设计
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Java Web应用程序开发课程教学设计优化策略研究
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作者 崔婷玉 张俊 《电脑知识与技术》 2024年第16期146-149,共4页
文章首先对Java Web应用程序开发课程教学内容进行了概述,通过对传统教学环节的分析,发现存在学生学习兴趣不高、实操能力不强、课后沟通不畅的问题。针对传统教学中存在的问题,文章从课堂教学前、课堂教学、课堂教学后3个环节进行教学... 文章首先对Java Web应用程序开发课程教学内容进行了概述,通过对传统教学环节的分析,发现存在学生学习兴趣不高、实操能力不强、课后沟通不畅的问题。针对传统教学中存在的问题,文章从课堂教学前、课堂教学、课堂教学后3个环节进行教学内容优化,将三个阶段形成一个完整的闭环,从教学设计、教学方法、信息化教学平台、考核方式方面,提出Java Web应用程序开发课程教学设计优化策略,有效提高了学生学习兴趣,提升了学生课程参与度,为学生以后进入职场工作打下坚实的基础。 展开更多
关键词 Java web应用程序 教学优化 教学内容 信息化教学平台 教学设计
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基于MVC模式的Java Web开发与应用探究
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作者 李如桃 《计算机产品与流通》 2024年第1期93-95,共3页
随着现代化技术以及信息化手段的飞速发展,社会已经进入了全新的发展进程中,这也对各行业的发展起到了良好的促进作用,实际上,目前的Web开发技术已经得到了较为全面的发展优化,这也使得“模型-视图-控制器”设计模式(MVC)在Java Web开... 随着现代化技术以及信息化手段的飞速发展,社会已经进入了全新的发展进程中,这也对各行业的发展起到了良好的促进作用,实际上,目前的Web开发技术已经得到了较为全面的发展优化,这也使得“模型-视图-控制器”设计模式(MVC)在Java Web开发过程中得到了广泛应用。尤其是站在宏观发展的角度上来看,MVC设计模式对Java Web的开发框架也产生了较为显著的影响。因此,本文首先对Java Web技术的基本概述加以明确,其次,对MVC模式的基本类型与设计模式展开深入分析;在此基础上,提出基于MVC模式的Java Web开发与应用模式。 展开更多
关键词 MVC模式 web开发 MVC设计模式 web技术 开发框架 Java 信息化手段 应用模式
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Dynamic Response Impact of Vehicle Braking on Simply Supported Beam Bridges with Corrugated Steel Webs Based on Vehicle-Bridge Coupled Vibration Analysis
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作者 Yan Wang Siwen Li Na Wei 《Computer Modeling in Engineering & Sciences》 SCIE EI 2024年第6期3467-3493,共27页
A novel approach for analyzing coupled vibrations between vehicles and bridges is presented,taking into account spatiotemporal effects and mechanical phenomena resulting fromvehicle braking.Efficient modeling and solu... A novel approach for analyzing coupled vibrations between vehicles and bridges is presented,taking into account spatiotemporal effects and mechanical phenomena resulting fromvehicle braking.Efficient modeling and solution of bridge vibrations induced by vehicle deceleration are realized using this method.The method’s validity and reliability are substantiated through numerical examples.A simply supported beam bridge with a corrugated steel web is taken as an example and the effects of parameters such as the initial vehicle speed,braking acceleration,braking location,and road surface roughness on the mid-span displacement and impact factor of the bridge are analyzed.The results show that vehicle braking significantly amplifies mid-span displacement and impact factor responses in comparison to uniform vehicular motion across the bridge.Notably,the influence of wheelto-bridge friction forces is of particular significance and cannot be overlooked.When the vehicle initiates braking near the middle of the span,both the mid-span displacement and impact factor of the bridge exhibit substantial increases,further escalating with higher braking acceleration.Under favorable road surface conditions,the midspan displacement and the impact factor during vehicle braking may exceed the design values stipulated by codes.It is important to note that road surface roughness exerts a more pronounced effect on the impact factor of the bridge in comparison to the effects of vehicle braking. 展开更多
关键词 Corrugated steel web girder bridges simply supported beam bridges vehicle-bridge coupled vibration BRAKING impact factor
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