无锡地铁1号线近期运能分析

基于对无锡地铁线路特点、无锡市人口特点、城市轨道交通功能定位等方面进行分析,建立客流预测模型,对无锡地铁1号线至2019年至2024年客流进行预测,为2024年锡澄线的开通提前做好数据分析。

宁波铁路枢纽近远期客运能力分析与研究

宁波铁路枢纽是浙江省两个铁路枢纽之一,位于宁波市境内,是华东地区综合交通枢纽的重要组成部分。结合国家铁路局和浙江省联合批复的宁波铁路枢纽总图规划、既有客站分布、枢纽点线能力情况,分析宁波铁路枢纽近、远期运输能力,得出枢纽近期客运能力紧张,远期新建宁波西站后满足运能需求;同时,对远期不修建宁波西站的情况进行运能分析,得出宁波至宁波东双线区间能力不足,进而提出不修建宁波西站的替代方案,最后通过对比分析得出远期规划的最优方案。

襄阳北站扩能改造方案研究与分析

大型路网性编组站运输任务重、安全压力大,扩能改造牵一发动全身,直接影响枢纽畅通。对襄阳北编组站运用现状及薄弱点进行系统分析,提出"打通堵点、投资最优、见效最快"的改造思路,针对制定"利用原襄阳北站—郜营间焦柳上行线的线路,将其改造成为北到线;增建襄阳北站六场到发线、机待线并改建机车出库线等"6项改造措施。对比分析襄阳北站改造前后的运输效率和效益,验证该扩能改造方案的可行性,为类似工程提供借鉴。

城市轨道交通列车编组方案优化分析

以城市轨道交通各区间断面设计年度预测的全日客流量为基础,根据轨道交通客流分布在各断面不均衡的特点,分析轨道交通线路上各站点客流分布的不均匀程度及其判别标准,采用聚类分析法分析客流分布特征,简化客流分布图,优化交通列车编组,以实现运营成本最小化。

城市轨道交通列车编组方案优化浅析

以城市轨道交通各区间断面设计年度预测的全日客流量为基础,根据轨道交通客流分布在各断面不均衡的特点,分析轨道交通线路上各站点客流分布的不均匀程度及其判别标准,采用聚类分析法分析客流分布特征,简化客流分布图,优化列车编组,以实现运营成本最小化。

Application of cluster analysis and stepwise regression in predicting the traffic volume of lanes

Because of the difficulty to obtain the traffic flow information of lanes at non-detector intersections in most metropolises of the world,based on the relationships between the lanes of signal-controlled intersections,cluster analysis and stepwise regression are integrated to predict the traffic volume of lanes at non-detector isolated controlled intersections.First cluster analysis is used to cluster the lanes of non-detector isolated signal-controlled intersections and the lanes of all signal-controlled intersections with detectors.Then, by the results of cluster analysis,the traffic volume samples are selected randomly and stepwise regression is used to predict the traffic volume of lanes at non-detector isolated signal-controlled intersections.The method is tested by the traffic volume data of lanes of the road network of Nanjing city.The problem of predicting the traffic volume of lanes at non-detector isolated signal-controlled intersections was resolved and can be widely used in urban traffic flow guidance and urban traffic control in cities without enough intersections equipped with detectors.

铁路春运工作的回顾与思考

对2004年徐州地区的春运工作进行回顾,指出春运存在的运能问题,提出“抢占节前、力扩运能、扬长避短、计划取胜”的16字战略方针,为搞好春运需克服铁路一统天下、极端追求高效和忽视以人为本的3种不良倾向。

基于客流与行车协同的城市轨道交通线网调度指挥系统研究

通过对城市轨道交通线网调度指挥现状剖析,发现存在运输能力和运输需求匹配分析不足的问题,客流引导和行车调整很难做到协同处理。针对该问题,在线网调度指挥系统中提出客流与行车协同分析的思路和方法,构建协同分析的数据处理流程,提出协同问题解决方案及线网客流与行车综合推演、线网客流与行车预测、拓扑路径建模与寻优等关键算法模型,并阐述了客流与行车协同的优点。将客流数据和行车数据深度结合,对线网调度指挥系统三层技术架构及客流与行车协同分析的调度辅助决策、客流和行车协同分析的应急行车协调指挥等2个核心功能进行设计。经试点应用,该方案既能高效疏导客流,又兼具节能效果,提高了应急处置效率,降低了应急情况下对乘客的影响。

Study on hydrostatic gas lubricated non-contacting mechanical seal

The principle and characteristics of hydrostatic gas lubricated non-contacting mechanical seal （HSGLNMS） are introduced. The flow field of the gas film is established by numerical analysis of end faces of HSGLNMS. The distribution of gas film pressure and seal performance parameters inclu- ding opening force and leakage are obtained. Influence of operating parameters and sealing configu- ration on the sealing performance is studied. HSGLNMS has been designed and manufactured. Its working film thickness and leakage are measured to verify the theoretical analysis. The investigation results show that HSGLNMS demonstrates good speed adaptability, which means that the seal runs successfully with both low and high speed, showing excellent performance. The seal can be regula- ted and controlled online ; the opening force will not be raised greatly with the increasing of the num- ber of throttle orifices, but the leakage of seal increases apparently ; the uniform pressure groove im- proves the sealing performance, for example, opening force and stiffness are raised obviously. While leakage is reduced. Finally, the theoretical analysis is verified by experiment.

Concept Design of a New Deep Draft Platform

The authors analyzed requirements for a new deepwater platform, from conceptual design to hydrodynamic analysis.The design incorporated Deep Draft Multi-Spar (DDMS) that allowed easy fabrication, reduced costs, and provided favorable motion performance.It also provided a dry tree system and other benefits.The conceptual design process included dimension estimation, general arrangements, weight estimation, weight distribution, stability analysis, etc.A high order boundary element method based on potential theory and the modified Morison equation was used to predict the hydrodynamic and viscous effects of this new concept platform.The response amplitude operators (RAOs) were acquired and compared with those of a typical Truss Spar.The response of the platform to the JONSWAP spectra of 3 different extreme ocean conditions was analyzed to evaluate the seakeeping ability of the new concept.The results revealed favorable motion performance due to all the degrees of freedom available.

Time-Frequency Analysis of EEG Signals Evoked by Voluntary, Stimulated and Imaginary Motions

In order to investigate the characteristics of sensorimotor cortex during motor execution(ME), voluntary, stimulated and imaginary finger flexions were performed by ten volunteer subjects. Electroencephalogram(EEG) data were recorded according to the modified 10-20 International EEG System. The patterns were compared by the analysis of the motion-evoked EEG signals focusing on the contralateral(C3) and ipsilateral(C4) channels for hemispheric differences. The EEG energy distributions at alpha(8—13 Hz), beta(14—30 Hz) and gamma(30—50 Hz) bands were computed by wavelet transform(WT) and compared by the analysis of variance(ANOVA). The timefrequency(TF) analysis indicated that there existed a contralateral dominance of alpha post-movement event-related synchronization(ERS) pattern during the voluntary task, and that the energy of alpha band increased in the ipsilateral area during the stimulated(median nerve of wrist) task. Besides, the contralateral alpha and beta event-related desynchronization(ERD) patterns were observed in both stimulated and imaginary tasks. Another significant difference was found in the mean power values of gamma band(p<0.01)between the imaginary and other tasks. The results show that significant hemispheric differences such as alpha and beta band EEG energy distributions and TF changing phenomena(ERS/ERD) were found between C3 and C4 areas during all of the three patterns. The largest energy distribution was always at the alpha band for each task.

An adaptive handoff management for fault tolerant mobile computing

Due to the mobility of mobile hosts,checkpoints and message logs of the computing process may disperseover different mobile support stations in the checkpointing and rollback recovery protocol for mobilecomputing.Three existing checkpoint handoff schemes do not give well consideration to the efficiency offailure-free process execution and the recovery speed of the failure process at the same time.A dynamicadaptive handoff management of the checkpointing and rollback recovery protocol for mobile computing isproposed in this paper.According to the individual feature and current state of each mobile host,differentimplementations are selected dynamically to complete the handoff process upon the handoff event.Performance analyses show that the proposed handoff management incurs a low loss of performance duringfailure-free and achieves a quick recovery upon the process fault.

Heat Transfer Properties and Chaotic Analysis of Parallel Type Pulsating Heat Pipe

The refrigerant mixture of ethanol aqueous was applied to the parallel type pulsating heat pipe (PHP). The operation characteristics of the PHP were analyzed by means of experiment and nonlinear chaotic theory. Moreover, the relationship between the running state and attractor was described. The results indicate that starting power, stable running power and dry burning transition power are about 64.08 W, 148.68 W and 234.0 W respectively. The cycle and amplitude of PHP initially decrease and then increase with the increasing power. However, the data are welldistributed in a certain range. The running state is in agreement with the attractors, and the changing process for attractors is as follows: the attractors first disperse in the whole phase space, then present mass status, and finally show band distribution.

Quantitative Evaluation on Urban Ecosystem Carrying Capacity in Tianjin Binhai New Area

Based on the concept of ecosystem carrying capacity,the indicator system of quantitative assessment was set up,which consisted of support indicator system and pressure indicator system.And the factor analysis method was used to screen the indicator system.Different from the traditional indicator weight determination based on the absolute values of the coefficients of regression equation,the squares of factor loadings in the rotated component matrix were attempted to determine the weights of 40 assessment indicators.The result shows that ecological support system and pressure system in Binhai New Area are relatively balanced among six years,and the developing level of urban ecosystem is basically healthy on the whole.However,due to continuously increasing pressure of the resources consumption caused by the rapid growth of the second industry,which is the Leading Industry of Binhai New Area,the ecosystem carrying capacity reached the minimum in 2005.

Research on Regional Industrial Solid Waste Comprehensive Utilization Ability Influencing Factors based on Panel Data

On the basis of panel data from 29 provinces and cities throughout the country in 2006-2010, a research is made on factors influencing regional industrial solid waste comprehensive utilization ability through a regression analysis method. Research result shows that a positive influence will generate on the comprehensive utilization ability of the industrial solid waste by three factors： regional industrial soldi waste treatment earning level, regional industrial soldi waste treatment investment level and regional industrial pollution treatment subsidy strength. And this thesis will propose suggestions from improving earning ability, enhartcing treatment investment and increasing government subsidy depending on result of empirical analysis.

Iranian English Foreign Language Learners＇ Learning Style Sensory Preferences and Their Speaking Strategy Use Across Proficiency

This study investigates the relationship between Iranian EFL （English as a Foreign Language） learners＇ sensory preferences： Visual, Audial, and Haptic （VAH） and the learners＇ speaking strategy use across proficiency. To this end 146 Iranian EFL learners studying English at different levels of language proficiency, participated in this study. O＇Brien＇s （1990） learning channel preference checklist was given to students to determine their sensory preferences In addition, a Speaking Strategy questionnaire （an adaptation of strategy inventory for language learning （SILL）, focusing on strategies used at the time of Speaking） was also given to the students in another session. The data were analyzed using multivariate ANOVA （MANOVA） in order to probe the relationship between Iranian EFL Learners＇ Learning Style Sensory Preferences and their speaking strategy use across proficiency. Based on the results, it can be claimed that there was a weak to moderate interaction between the proficiency levels and preference of speaking strategies on the learning styles of the Iranian EFL learners.

Design and Research of Big Data Processing Platform

This paper introduces the operational characteristics of the era of big data and the current era of big data challenges, and exhaustive research and design of big data analytics platform based on cloud computing, including big data analytics platform architecture system, big data analytics platform software architecture, big data analytics platform network architecture big data analysis platform unified program features and so on. The paper also analyzes the cloud computing platform for big data analysis program unified competitive advantage and development of business telecom operators play a certain role in the future.

Multi-scale interactions in interpersonal coordination

Background:Interpersonal coordination is an essential aspect of daily life,and crucial to performance in cooperative and competitive team sports.While empirical research has investigated interpersonal coordination using a wide variety of analytical tools and frameworks,to date very few studies have employed multifractal techniques to study the nature of interpersonal coordination across multiple spatiotemporal scales.In the present study we address this gap.Methods:We investigated the dynamics of a simple dyadic interpersonal coordination task where each participant manually controlled a virtual object in relation to that of his or her partner.We tested whether the resulting hand-movement time series exhibits multi-scale properties and whether those properties are associated with successful performance.Results:Using the formalism of multifractals,we show that the performance on the coordination task is strongly multi-scale,and that the multi-scale properties appear to arise from interaction-dominant dynamics.Further,we find that the measure of across-scale interactions,multifractal spectrum width,predicts successful performance at the level of the dyad.Conclusion:The results are discussed with respect to the implications of multifractals and interaction-dominance for understanding control in an interpersonal context.

通信枢纽楼能耗运行分析研究

如何在业务量不断增加,电源容量无法扩容的情况下,更好地解决供电能力紧张、机房装机位不足、机房散热等问题,是本论文的研究意义所在。本文通过对S省通信枢纽楼能耗运行分析,给出以上难点的合理化建议和建设指导原则。

阿尔及利亚175铁路项目运营能力研究

线路运输能力是影响线路方案取舍的重要因素。合同规定单向最大运输量为"6列客车+2列货车"/h,采用不同类型的机车进行了单车模拟和运能分析,模拟结论为在不影响旅客列车行车速度的条件下,线路最大运营能力为6列客车+1列货车。为此,承包商向业主提出特例申请:"在交通最高峰期间,单向最大运输量为6列客车+1列货车"/h,获得了业主的同意,对合同条款进行了修改,运营模拟得以顺利通过,为项目线路方案的最终确定和后续设计奠定了坚实的基础。