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Search Results: 1 - 10 of 371371 matches for " 王志毅 "
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Hybrid Artificial Bee Colony Algorithm for Solving High-dimensional Function Optimization Problems
求解高维函数优化问题的混合蜂群算法

,玲玲
计算机科学 , 2013,
Abstract: 为了提高人工蜂群算法求解复杂优化函数的全局搜索能力,提出了多父体杂交算法、差分进化算法和蜂群算法的混合蜂群算法(Hybrid artificial bcc colony algorithm, HABC) 。 HABC的核心在于,采用多父体杂交算子提高人工蜂群算法的全局搜索能力,通过淘汰相同个体保证群体的多样性,利用差分进化算子加快人工蜂群算法的收敛速度。高维函数优化问题的仿真结果表明,该算法全局搜索能力好,收敛速度快。
一种基于ε-支配的多目标自组织迁移算法
,玲玲
控制与决策 , 2014, DOI: 10.13195/j.kzyjc.2013.1437
Abstract: 提出一种基于ε-支配关系的多目标自组织迁移算法.首先对基于混合迁移行为的自组织迁移算法进行改进,将全面学习的思想引入个体的迁移过程中,使得个体的每个分量都可以向其他个体学习,从而进行充分的信息交换;通过引入学习因子扩展个体的迁移方向,使得步长可灵活变化,进而利用改进算法快速搜索多目标函数的Pareto最优解,并采用ε-支配关系以保持种群分布性;最后通过实验分析表明了所提出方法的有效性.
恒温下结构钢的应力-应变关系
,
福州大学学报(自然科学版) , 2013,
Abstract: 为确定合理的高温中钢材应力-应变关系模型,在已有恒温加载试验研究的基础上,通过对高温中弹性模量、屈服强度、极限强度、硬化应变和极限应变等实测数据的拟合分析,提出高温中钢材的应力-应变关系模型.与ASCE和EC3中钢材的应力-应变关系模型相比,该模型的计算曲线与实测曲线吻合度更好.
两种钢管混凝土轴压短柱有限元模型的比较
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福州大学学报(自然科学版) , 2013,
Abstract: 有限元软件ABAQUS由于其强大的非线性功能,被广泛用于钢管混凝土构件的设计和研究中,研究者们还建议了多种适合该软件使用的钢管混凝土轴压短柱的有限元模型.分析了现有的340个钢管混凝土轴压短柱的试验数据,基于这个数据库对现有的两个常用钢管混凝土轴压短柱的有限元模型进行验证,以明确两种有限元模型的适用范围,为设计和研究该类构件提供有益参考.
基于反向学习的自组织迁移算法
,玲玲?
计算机科学 , 2012,
Abstract: 为了解决自组织迁移算法存在的早期收敛问题,提出了基于反向学习的自组织迁移算法(opposition-basedself-organizingmigratingalgorithm,osoma)。该算法利用反向学习机制扩展了个体的搜索方向,获得了更优秀的采样个体,使得算法在保持多样性的同时提高了收敛速度。此外,该算法还对步长进行自适应调整,进一步平衡了算法的勘探和开采能力。通过典型函数的测试证实了osoma的有效性。
求解高维函数优化问题的混合蜂群算法
,玲玲?
计算机科学 , 2013,
Abstract: 为了提高人工蜂群算法求解复杂优化函数的全局搜索能力,提出了多父体杂交算法、差分进化算法和蜂群算法的混合蜂群算法(hybridartificialbcccolonyalgorithm,habc)。habc的核心在于,采用多父体杂交算子提高人工蜂群算法的全局搜索能力,通过淘汰相同个体保证群体的多样性,利用差分进化算子加快人工蜂群算法的收敛速度。高维函数优化问题的仿真结果表明,该算法全局搜索能力好,收敛速度快。
圆钢管混凝土短柱的火灾后剩余承载力研究
,
- , 2015,
Abstract: 在提出火灾全过程各阶段中钢管和核心混凝土应力-应变关系模型的基础上,采用有限元软件ABAQUS中的热-应力耦合分析模块计算了ISO-834标准火灾全过程作用后圆钢管混凝土轴压短柱的荷载-变形关系曲线,计算结果和试验结果基本吻合.对火灾全过程中圆钢管混凝土轴压短柱的荷载-变形关系、钢管和核心混凝土的截面应力分布以及两者之间的相互作用进行了分析,探讨了升温时间、初始荷载、截面含钢率、钢材强度、混凝土强度、防火保护层厚度和截面尺寸等参数对圆钢管混凝土轴压短柱剩余承载力的影响规律,最终提出了圆钢管混凝土轴压短柱剩余承载力的简化计算公式.
On the basis of the proposed stress-strain relationships of steel and concrete of concrete-filled circular steel tubes (CFCST) at each stage of fire exposure, fully coupled thermal-stress analysis model in finite element soft ABAQUS was developed to predict the load-deformation relationship curves of axially loaded CFCST stub columns after exposure to ISO-834 standard fire. The predicted results were in good agreement with test results. The finite element analysis model was then used to investigate the behavior of CFCST stub columns by examining the load-deformation relationship, the cross-sectional stress distributions of steel tube and concrete core and their interaction during the entire stage of fire exposure. Parametric analysis was conducted to investigate the influence of heating time, initial axial, steel ratio, steel yield strength, concrete cube strength, spray insulation thickness and sectional size on the residual strength of axially loaded CFCST stub columns. Finally, a set of formulas was proposed to predict the residual strength of axially loaded CFCST stub columns after exposure to fire.
红外热像技术在中医未病诊疗中的应用
The Application of Infrared Thermal Imaging in Chinese Medicine Diagnosis System
 [PDF]

邱波,, 李青山, ,
Traditional Chinese Medicine (TCM) , 2014, DOI: 10.12677/TCM.2014.31002
Abstract: 本文阐述了红外热像检测技术原理,介绍了现代中医未病诊疗系统,以及红外热像在现代中医检测中的作用,并对该技术在现代中医的应用前景做出展望。
In this paper, the principle of infrared thermal imaging detection technology is described, the diagnosis and treatment system of unknown disease in modern Chinese medicine is introduced and the role of infrared thermal imaging in modern Chinese medicine is also elaborated. In addition, the developing prospect of this technology in modern Chinese medicine is expected.
棉织物连续化层层自组装阻燃拒水复合整理
Flame Retardant and Water Repellent Finishing on Cotton Fabrics through a Continuous Layer by Layer Self-Assembly Technology
 [PDF]

, 隋晓锋, 徐红,, 张琳萍,
Hans Journal of Chemical Engineering and Technology (HJCET) , 2016, DOI: 10.12677/HJCET.2016.62003
Abstract:
本文采用连续化层层自组装技术在棉织物上制备PDA-bPEI-MMT-PDMS涂层,并利用热重分析(TGA),垂直燃烧测试和接触角测试对被整理织物的阻燃拒水性能进行了研究。结果表明:SEM图像显示在棉织物表面成功构造了复合涂层,热重分析(TGA)表明被整理织物具有良好的耐热稳定性,垂直燃烧测试虽将阻燃拒水整理织物完全炭化,但仍可保持较完整的织物形态,并且具有良好的疏水性,其接触角可达143?。
PDA-bPEI-MMT-PDMS composite coating was prepared for flame retardant and water repellent properties on cotton fabrics using a continuous layer by layer self-assembly technology. Flame re-tardant and water repellent properties were studied by the thermal gravimetric analysis (TGA), the vertical burning test and contact angle test. The SEM images show that composite coating can be successfully prepared. The coated fabric had good thermal stability; further the vertical burning test verified the flame retardant properties because coated fabrics maintained complete fabric shape after burning. Meanwhile, the coated fabric had good water repellent, the contact angle was 143?.
Optimizing Interactive-Dynamic Web Pages
Web交互式动态页面的优化

,
重庆邮电大学学报(自然科学版) , 2001,
Abstract: 首先简单介绍创建Web应用程序的ASP基本原理,然后从程序代码和数据库访问控制两个方面 分析介绍了如何优化Web动态网站技术。
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