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北京亦庄博大路快速通道改造工程研究
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作者 刘源 杜传金 栗志杰 《交通标准化》 2012年第8期126-131,共6页
为缓解北京亦庄开发区与中心城交通联系紧张状况,进行亦庄开发区与中心城交通联系通道研究,结合目前通道存在的问题及实施条件,有针对性地确定改造原则,提出改造方案,归结出城市开发区与城市中心区交通通道改造工程中的工作思路及需要... 为缓解北京亦庄开发区与中心城交通联系紧张状况,进行亦庄开发区与中心城交通联系通道研究,结合目前通道存在的问题及实施条件,有针对性地确定改造原则,提出改造方案,归结出城市开发区与城市中心区交通通道改造工程中的工作思路及需要注意的问题。 展开更多
关键词 快速交通联系通道 路网平衡 交通功能
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New atom movement mechanism for tracking path on disordering AuCuI(A_8^(Au)A_4^(Cu)) compound 被引量:3
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作者 谢佑卿 彭红建 +2 位作者 刘心笔 李小波 聂耀庄 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2014年第10期3221-3256,共36页
Taking experimental path on disordering AuCuI(AAuCu8A4)composed of A Au8 and ACu4 stem alloy genes as an example, three discoveries and a method were presented. The ability of Au Cu I(AAu Cu8 A4)to keep structure ... Taking experimental path on disordering AuCuI(AAuCu8A4)composed of A Au8 and ACu4 stem alloy genes as an example, three discoveries and a method were presented. The ability of Au Cu I(AAu Cu8 A4)to keep structure stabilization against changing temperature is attributed to the fact that the AAu8 and ACu4 potential well depths greatly surpass their vibration energies, which leads to the subequilibrium of experimental path. A new atom movement mechanism of AuCuI(AAuACu84)to change structure for suiting variation in temperature is the resonance activating-synchro alternating of alloy genes, which leads to heterogeneous and successive subequilibrium transitions. There exists jumping order degree, which leads to the existence of jumping Tj-temperature and an unexpected so-called "retro-effect" about jumping temperature retrograde shift to lower temperatures upon the increasing heating rate. A set of subequilibrium holographic network path charts were obtained by the experimental mixed enthalpy path method. 展开更多
关键词 INTERMETALLICS alloy gene order/disorder transformation resonance activating-synchro alternating mechanism thermodynamic properties equilibrium and subequilibrium holographic network path charts
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Hybrid-Traffic-Detour Based Load Balancing for Onboard Routing in LEO Satellite Networks 被引量:11
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作者 Peilong Liu Hongyu Chen +2 位作者 Songjie Wei Limin Li Zhencai Zhu 《China Communications》 SCIE CSCD 2018年第6期28-41,共14页
To deal with the dynamic and imbalanced traffic requirements in Low Earth Orbit satellite networks, several distributed load balancing routing schemes have been proposed. However, because of the lack of global view, t... To deal with the dynamic and imbalanced traffic requirements in Low Earth Orbit satellite networks, several distributed load balancing routing schemes have been proposed. However, because of the lack of global view, these schemes may lead to cascading congestion in regions with high volume of traffic. To solve this problem, a Hybrid-Traffic-Detour based Load Balancing Routing(HLBR) scheme is proposed, where a Long-Distance Traffic Detour(LTD) method is devised and coordinates with distributed traffic detour method to perform self-adaptive load balancing. The forwarding path of LTD is acquired by the Circuitous Multipath Calculation(CMC) based on prior geographical information, and activated by the LTDShift-Trigger(LST) through real-time congestion perception. Simulation results show that the HLBR can mitigate cascading congestion and achieve efficient traffic distribution. 展开更多
关键词 satellite networks load balancing cascading congestion traffic detour
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南国路改造工程东段施工交通疏解与管理 被引量:1
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作者 毛戬 《交通世界》 2017年第32期12-13,共2页
随着我国城市的扩张,道路需进行改扩建。但是,由于不少旧有道路地处人口密集、交通繁忙地带,一旦进行改扩建施工必然导致周边出现严重的交通拥堵问题,故做好交通疏解十分必要。鉴于此,围绕南国路改造工程东段施工,探讨了其交通疏解的必... 随着我国城市的扩张,道路需进行改扩建。但是,由于不少旧有道路地处人口密集、交通繁忙地带,一旦进行改扩建施工必然导致周边出现严重的交通拥堵问题,故做好交通疏解十分必要。鉴于此,围绕南国路改造工程东段施工,探讨了其交通疏解的必要性、原则与思路,最后提出了南国路改造工程东段施工交通疏解与管理措施,可供类似工程参考。 展开更多
关键词 交通疏解 改建道路 平衡路网流量
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A Routing Optimization Algorithm with Quality of Multi- Service in Wireless Sensor Network
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作者 Jing Gong Lina Yuan 《International Journal of Technology Management》 2015年第3期76-78,共3页
According to the problem of energy consumption in wireless sensor network (WSN),this paper puts forward a routing optimization algorithm with quality of multi-service, using the function of routing optimization with... According to the problem of energy consumption in wireless sensor network (WSN),this paper puts forward a routing optimization algorithm with quality of multi-service, using the function of routing optimization with quality of multi-service and membership function of satisfaction, which integrates the energy consumption of communication and residual and the information of time delay into the membership function of satisfaction to solve the equilibrium factor, so that it can become the optimal routing that balances the network lifetime, transmission delay of data, and node energy consumption of nodes. Simulation experiment shows that adopting the algorithm can make lifecycle of nodes longer and network transmit more data packets at the same time. Experimental results verify the algorithm can effectively balance the network energy, reduce the energy consumption and prolong the network lifetime. 展开更多
关键词 wireless sensor network (WSN) ROUTING quality of multi-service balance the network energy DELAY
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非平衡交通分配的离散网络平衡设计模型与算法 被引量:1
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作者 肖海燕 王先甲 黄崇超 《武汉大学学报(工学版)》 CAS CSCD 北大核心 2009年第6期812-816,共5页
交通网络设计问题是指对一个已经存在的交通网络,用定量的方法确定添加哪些新路段、对哪些已有路段进行改造以提高其通行能力的问题,并分为连续网络设计问题和离散网络设计问题.针对该问题提出了一种新的离散网络平衡设计二层规划模型,... 交通网络设计问题是指对一个已经存在的交通网络,用定量的方法确定添加哪些新路段、对哪些已有路段进行改造以提高其通行能力的问题,并分为连续网络设计问题和离散网络设计问题.针对该问题提出了一种新的离散网络平衡设计二层规划模型,模型不仅考虑了新增路段及已有路段的扩容,而且允许不同等级的扩容选择.模型求解中,上层问题采用粒子群算法,下层问题采用路径生成式logit非平衡交通分配算法.数值结果显示,本文提出的算法可以快速有效地求解这类新的网络平衡设计二层规划模型. 展开更多
关键词 交通规划 路网平衡设计 二层规划模型 平衡交通分配算法 粒子群算法(PSO)
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一种新的求解离散型交通网络平衡设计问题的算法
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作者 肖海燕 刘炳全 《长春理工大学学报(高教版)》 2006年第4期157-160,共4页
本文提出了一种新的求解离散网络平衡设计二层规划模型的算法。模型求解中,上层问题采用粒子群算法,而下层问题则采用路径生成式logit非平衡交通分配算法。数值结果显示,本文提出的算法可以快速有效地求解这类网络平衡设计二层规划模型。
关键词 交通规划 路网平衡设计 二层规划模型 平衡交通分配算法 粒子群算法(PSO)
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