大数据时代天津智慧城市智能交通建设与道路交通发展展望

通过对天津市交通强国建设、京津冀交通一体化及第三届世界智能大会的介绍,从交通运输管理系统、出行服务系统、电子付费系统和交通监控指挥系统智能化升级等方面阐述了天津市逐步进入智能交通应用阶段的情况。在此基础上,论述了5G时代,在“创新、协调、绿色、开放、共享”五大发展理念的引领下,城市道路在道路横断面布置、自行车道设置、共享单车停车点布设、步行交通系统多样化等方面创新设计的思路,展望了在未来万物互联的智能世界中,低碳生态城市和以公共交通为主导的城市综合交通系统的发展前景。     

济南新旧动能转换先行区地下物流系统规划研究

为实现济南新旧动能转换先行区（下称“先行区”）的可持续发展，提出了利用地下物流系统发展智慧城市配送的创新思路，可提升城市物流的运行效率，形成高效的城市交通系统，支撑产业的新旧动能转换。以先行区的地下物流系统为主要研究对象，通过研究地下物流规划建设可行性，得出先行区内的大桥组团适宜发展地下物流系统的结论；对大桥组团内地下物流的需求进行预测，据此设计了地下物流系统的体系结构、物流节点、物流廊道、运输设备和技术参数等；对研究难点——地下物流廊道建设形式开展了详细设计，以此制定了地下物流近期建设方案，为先行区的智慧城市配送提供了较为全面的发展策略参考。     

集中管理模式下编组场无线通信方案的选择简

丰台西编组站进行集中化管理改造后,既有调车通信系统难以满足需求.比较数字对讲、GSM-R系统、模拟制式电台3种方案,最终采用数字化对讲方案作为丰台西编组场调车系统无线通信方案.     

基于RFID技术的混凝土搅拌站车辆管理系统

混凝土搅拌站运输车大流量运输作业过程中,传统的人工管理计数、统计、调度、监控等环节的工作十分繁琐,且效率低下。针对人工管理模式的缺陷进行信息化管理模式的改进,将RFID(无线射频识别)技术与计算机软件技术相结合,对进出搅拌站的运输车辆实行无人值守的管理,克服了传统方法的弊端。设备安全耐用,使用方便,系统灵敏可靠,提高了工作效率和经济效益,具有很强的实用性。     

区级海绵城市建设规划中指标管控方法探讨

针对区级海绵城市建设规划中管控单元划分和指标分解等关键环节,提出最小管控单元和管控指标源头-系统两级分解体系.上海市虹口区的案例表明,最小管控单元可有效衔接源头地块、控规单元和排水系统,管控指标源头-系统两级分解体系可有效体现系统性工程在海绵指标中的贡献,合理减轻源头项目的达标压力.     

一种摆式列车未平衡加速度测量仪的研究

介绍了一在于单摆的高精度数字测量仪，采用磁电涡流阻尼和光电编码器摆角的结构，它适合于测量车体的理论与实际倾斜角的误差，从而测量对应的未平衡加速度。对测量原理进行了分析，同时介绍了实验室条件下试验的结果。     

某城市客车铰盘结构强度分析

分析铰盘结构在各种行驶工况时的受力特点;建立铰盘结构的有限元模型及边界条件;计算某城市客车铰盘在各种工况下的应力分布及最大应力,为铰盘结构的改进及轻量化提供参考。     

Identification of potential sites for deep-ocean waste isolation with a geographic site-selection model

Identification of optimal sites for the isolation of waste on the abyssal seafloor was performed with two approaches: by the traditional method of map overlays of relevant attributes, and by a specially developed, automated Site-Selection Model (SSM). Five initial, Surrogate Sites, identified with the map-overlay approach, were then compared with the more rigorously produced scores from the SSM. The SSM, a process for optimization of site locations, accepts subjective, expert-based judgments and transforms them into a quantitative, reproducible, and documented product. The SSM is adaptable to any siting scenario. Forty-one factors relevant to the isolation scenario, including 21 weightable factors having a total of 123 scorable categories, have been entered into the SSM. Factors are grouped under project definition, unique environments, anthropogenic, geologic, biologic, weather, oceanographic and distance criteria. The factor scores are linked to a georeferenced database array of all factors, corresponding to 1°×1° latitude–longitude squares. The SSM includes a total of 2241 one-degree squares within 1000 n.m. of the U.S. coasts, including the western North Atlantic, the Gulf of Mexico, and the eastern North Pacific. Under a carefully weighted and scored scenario of isolation, the most favorable sites identified with the SSM are on the Hatteras and Nares Abyssal Plains in the Atlantic. High-scoring sites are also located in the Pacific abyssal hills province between the Murray and Molokai Fracture Zones. Acceptable 1° squares in the Gulf of Mexico are few and of lower quality, with the optimum location on the northern Sigsbee Abyssal Plain. Two of the five Surrogate Site locations, on the Hatteras and Sigsbee Abyssal Plains, correspond to the best SSM sites in each ocean area. Two Pacific and a second Atlantic Surrogate Site are located in low-scoring regions or excluded by the SSM. Site-selection results from the SSM, although robust, are an initial attempt to quantify the site-selection process. The SSM database exposes a significant lack of high-quality information for many areally mappable attributes on the abyssal seafloor, particularly bottom-current speed and measures of biologic productivity and flux. Terminologies and classifications of some measures, such as sediment types, suffer from parochialism and vary by ocean. Considerable research is needed even for a broad understanding of the environmental measures required to make sound societal decisions about use of the abyssal seafloor for disposal or other purposes.     

XML6155大型城市客车的设计与开发

介绍了XML6155大型城市客车的开发背景和主要配置，重点阐述了顶盖、空调风道、扶手、座椅及暖风设计，指出了XML6155大型城市客车降噪方案的技术创新点。     

基于数字信号处理的直接转矩控制研究

直接转矩控制因控制简单、具有优良的动静态特性，在电机控制中应用越来越广泛。但它在低速区的局限也较多。随着数字信号处（Digital Signal Processing，缩写DSP）技术的发展，使得改善其低速控制特性成为可能。文中简介了直棼转矩控制技术的特点、控制原理及难点，探讨了一种应用DSP技术的直接转矩控制方法。