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赵 佳,于 华
《中国工程科学》 2015年 第17卷 第1期 页码 137-142
提出了最大可靠性网络流中断模型。此模型是在给定的网络图中,通过在边上设置监测点来阻止给定两个顶点之间的网络流量,同时考虑所设置监测点失效的可能,在给定的资源限制下,最大化中断网络流的可能性,即给定起点和终点的网络图,在资源有限的情况下在给定图中,两点之间的路的条数是图的规模的指数次幂,为此将此模型转化为双层整数规划模型,鉴于双层整数规划模型在一般情况下是不可解的,通过探讨下层整数规划问题与其线性规划松弛之间的关系以及线性规划对偶理论来解此双层整数规划模型本文不仅将该模型约束的个数从图的规模的指数次幂降到一次幂,同时也提供了一种解双层整数规划问题的方法。
王晓玲,孙宜超,陈华鸿,杨丽美,孙蕊蕊
《中国工程科学》 2011年 第13卷 第12期 页码 56-62
为了提高风暴潮灾害应急处置能力,确保防潮安全,文章建立了耦合流体体积函数(VOF)法的三维非稳态水气两相流k-ε模型,采用等效糙率的方法处理城市密集建筑群
王海桥,刘荣华,陈世强
《中国工程科学》 2004年 第6卷 第8期 页码 45-49
利用机器视觉技术对化工厂管道进行自动视觉泄漏检测与定位 Reiew
Mina Fahimipirehgalin, Emanuel Trunzer, Matthias Odenweller, Birgit Vogel-Heuser
《工程(英文)》 2021年 第7卷 第6期 页码 758-776 doi: 10.1016/j.eng.2020.08.026
变环境压力下的激光选区熔化——介观尺度模型与输运现象 Article
Letyagin, K.P. Karunakaran, 庞盛永
《工程(英文)》 2021年 第7卷 第8期 页码 1157-1164 doi: 10.1016/j.eng.2021.07.003
Update on Mayer–Rokitansky–Küster–Hauser syndrome
《医学前沿(英文)》 2022年 第16卷 第6期 页码 859-872 doi: 10.1007/s11684-022-0969-3
关键词: MRKH (Mayer–Rokitansky–Küster–Hauser) syndrome etiology clinical characteristic diagnosis treatment psychological effect
Stochastic analysis of laminated composite plate considering stochastic homogenization problem
SAKATA,K. OKUDA,K. IKEDA
《结构与土木工程前沿(英文)》 2015年 第9卷 第2期 页码 141-153 doi: 10.1007/s11709-014-0286-2
关键词: stochastic homogenization multiscale stochastic analysis microscopic random variation laminated composite plate
Shape control of multi-cellular inflatable panels
KATAYAMA, K. ISHIMURA, K. MINESUGI, DANIEL J. INMAN
《机械工程前沿(英文)》 2013年 第8卷 第3期 页码 276-282 doi: 10.1007/s11465-013-0267-5
Multi-cellular inflatable structures are ultra-light and robust against membrane damage such as pinholes caused by space debris. Due to their robustness, inflatable structures supported by inner gases can be applied as space structures. In the present study, shape control for a simple multi-cellular inflatable panel was achieved via a novel diaphragm mechanism. When the bending actuator in a center membrane bends, the inner pressures of sub-cells become different, and the diaphragm mechanism bends as a whole. Because a sliding component is not included, this deformable system is a reliable mechanism. In addition, the proposed mechanism has higher rigidity than that of a bending actuator used alone. In the present paper, we investigate the feasibility of a novel diaphragm mechanism and its characteristics using experimental and numerical results.
关键词: Membrane structures inflatable structure shape control smart structures structural mechanics space engineering
A multi-attribute decision making approach of mix design based on experimental soil characterization
Amit K. BERA, Tanmoy MUKHOPADHYAY, Ponnada J. MOHAN, Tushar K. DEY
《结构与土木工程前沿(英文)》 2018年 第12卷 第3期 页码 361-371 doi: 10.1007/s11709-017-0425-7
The clay mineral composition is one of the major factors that governs the physical properties of silty sand subgrade. Therefore, a thorough knowledge of mineral composition is essential to predict the optimum engineering properties of the soil, which is generally characterized by different indices like maximum dry density (MDD), California bearing ratio (CBR), unconfined compressive strength (UCS) and free swelling index (FSI). In this article, a novel multi-attribute decision making (MADM) based approach of mix design has been proposed for silty sand – artificial clay mix to improve the characteristic strength of a soil subgrade. Experimental investigation has been carried out in this study to illustrate the proposed approach of selecting appropriate proportion for the soil mix to optimize all the above mentioned engineering properties simultaneously. The results show that a mix proportion containing approximately 90% silty sand plus 10% bentonite soil is the optimal combination in context to the present study. The proposed methodology for optimal decision making to choose appropriate combination of bentonite and silty sand is general in nature and therefore, it can be extended to other problems of selecting mineral compositions.
关键词: silty sand bentonite soil soil mix design multi-attribute decision making
钟新谷,杨胜,石卫华
《中国工程科学》 2011年 第13卷 第9期 页码 97-100
以湘潭四大桥桁架拱为工程背景,进行了三种规格的K型钢管混凝土节点的疲劳试验,基于热点应力计算了K型钢管混凝土节点的疲劳荷载幅值,表明热点应力法能够较好地评估钢管混凝土节点的疲劳寿命;试验表明K型钢管混凝土节点的疲劳性能明显优于K型钢管节点。在此基础上初步提出了K型钢管混凝土节点的S—N曲线,对建立K型钢管混凝土节点疲劳寿命设计准则具有一定的参考意义。
Minsoo KIM,Yejin KIM,Hyosoo KIM,Wenhua PIAO,Changwon KIM
《环境科学与工程前沿(英文)》 2016年 第10卷 第2期 页码 299-310 doi: 10.1007/s11783-015-0825-7
关键词: influent wastewater prediction data-driven model k-nearest neighbor method (k-NN)
标题 作者 时间 类型 操作
利用机器视觉技术对化工厂管道进行自动视觉泄漏检测与定位
Mina Fahimipirehgalin, Emanuel Trunzer, Matthias Odenweller, Birgit Vogel-Heuser
期刊论文
Stochastic analysis of laminated composite plate considering stochastic homogenization problem
SAKATA,K. OKUDA,K. IKEDA
期刊论文
Shape control of multi-cellular inflatable panels
KATAYAMA, K. ISHIMURA, K. MINESUGI, DANIEL J. INMAN
期刊论文
A multi-attribute decision making approach of mix design based on experimental soil characterization
Amit K. BERA, Tanmoy MUKHOPADHYAY, Ponnada J. MOHAN, Tushar K. DEY
期刊论文
Evaluation of the k-nearest neighbor method for forecasting the influent characteristics of wastewater
Minsoo KIM,Yejin KIM,Hyosoo KIM,Wenhua PIAO,Changwon KIM
期刊论文