CRH2型动车组与CTCS2-200C型列控车载设备良性配合之探讨

CRH2型动车组与CTCS2-200C型列控车载设备良性配合解决方案,包括车-地间的兼容性改造、CRH2型动车组的电磁环境整治以及提高CTCS2-200C型车载设备的抗电磁干扰能力,实现了CRH2型动车组与CTCS2-200C型列控车载设备良性配合;解决了CRH2-057A/058A型动车组无法以C2控车模式正常商业运行的问题;避免了更换列控车载主机设备,取得了良好的安全和经济效益,对其他类型的动车组与列控车载设备的良性配合具有现实的借鉴和指导意义。     

分布式清洁供暖及氢能热电联供装置应用分析

以燃料电池为核心的热电联供是一种高效环保的分布式清洁供暖方式,越来越多国家与地区开始关注,在国内尚属新鲜事物。首先,以山东省为例,对其发展规划所提到的清洁供暖方式,了解其含义及优缺,并从成本、安全性、效果/效率、寿命、规模、应用领域六方面进行对比分析;其次,阐述分布式能源的含义、特点及分类,明确燃料电池热电联供是清洁供暖与分布式能源的良好结合体;最后,从耗煤量、耗天然气量及费用节约三个方面对燃料电池热电联供系统进行节能性分析。分析结果为今后搭建及优化系统、建模理论分析提供了一定的指导。     

街上公路隧道穿越大型溶洞的治理措施

以贵州省杭瑞高速公路毕节至都格(黔滇界)段街上公路隧道为背景,揭露了右线大型溶洞的发育特征,针对性地给出了评价及建议,提出了第一段、第二段的分段治理措施,以实际效果验证了治理措施的有效性。     

EFFECT OF IRON SUPPLEMENT ON SERUM LEVELS OF T3,T4,TSH,GH AND INSULIN IN CHILDREN WITH IRON DEFICIENCY

ＥＦＦＥＣＴＯＦＩＲＯＮＳＵＰＰＬＥＭＥＮＴＯＮＳＥＲＵＭＬＥＶＥＬＳＯＦＴ３,Ｔ４,ＴＳＨ,ＧＨＡＮＤＩＮＳＵＬＩＮＩＮＣＨＩＬＤＲＥＮＷＩＴＨＩＲＯＮＤＥＦＩＣＩＥＮＣＹＸｉａｏＹａｎｆｅｎｇ;ＹｉｎＪｉｎｇ;ＺｈｅｎｇＣｈｕｎｌｉ;（Ｄｅｐａｒｔｍｅ...     

基于MATLAB的早期混凝土湿度分布研究

研究早期混凝土内部湿度的分布规律对控制早期混凝土裂缝具有重要意义。以现有试验结果和扩散理论为基础,分析了影响混凝土湿度扩散系数因素,采用MATLAB数值方法求解出不同水灰比下混凝土内部的湿度分布情况,并和已有试验结果进行了对比,结果表明数值计算与试验结果吻合良好,该数值方法计算的湿度场可为防止早期混凝土表面开裂提供参考。     

THE EFFECT OF STATUS OF ZINC, CALCIUM ON GROWTH OF CHILDREN AGED 3～6 YEARS IN XI'AN AND ANALYSIS OF EFFECTIVENESS OF ZINC SUPPLEMEINT

Traceelementsareimportantnutri-tioussubstancesforgr0wthofchildren.Ithasbeenrep0rtedthatzincdeficiencyisthecause0fgrowthretardation,dwarfisminchildren.Thec0rrelation'0flevel0fzinc,calciumwiththegr0wthofhealtllychildren,howeverFasn0tbeenclearlyin-vestigated.Inthispaper,thecorrelationofheightandweight0fchildrenwithzinc(Zn),calcium(Ca)statusisanalysedandtheeffect0fzincsupplementongrowthofchildrenisinvestigated,accordingt0anobservati0n0n456healthychildrenaged3～6yearsinXi'an.MATERIALSANDMET…     

The impact of transport pricing policy on individual energy consumption: a modeling case study in Kumamoto

To investigate the impact of traffic pricing policies on energy consumption, this study shows a microeconomic quantitative analysis scheme to simulate individual consumption behaviors from a microeconomic viewpoint. Energy consumption is estimated based on individual demand of non‐mobility goods and mobility goods under nine policy scenarios based on strategies of gasoline tax adding and mass transit fare reduction independently or combined. Results show that gasoline tax adding has strong effects on consumption behaviors. Energy consumption reduces mostly because of less consumption of non‐mobility goods and car trips. However, policy of mass transit fare reduction has limited impact on energy saving because consumption of non‐mobility goods and mass transit trips increases, but the number of car trips decline by only a small percentage. Comparing with single‐type policy, policies that combined gasoline tax adding and mass transit fare reduction show less energy consumption. Findings suggest that policies that increase cost of car trips, such as gasoline tax adding, are very helpful to reduce the consumption of non‐mobility goods and car trips, which contribute to less energy consumption. However, reducing cost of mass transit trips suggests limited effect on energy saving. Copyright © 2015 John Wiley & Sons, Ltd.     

工程项目管理效果模糊动态综合评价原理与方法的浅析

本文根据现有工程管理实际情况,在分析工程项目的内在联系及隶属关系的前提下,建立基于动态模糊理论的工程项目管理的综合评定方法.     

浅谈预应力混凝土箱梁表面裂缝的防治

在桥梁施工中,预应力混凝土箱梁的应用十分广泛,对箱梁表面产生裂缝的防治对工程施工有一定的指导意义。     

区块链技术在交通运输行业新冠肺炎疫情防控中的应用分析与政策建议

为提升交通运输行业新冠肺炎疫情防控水平,解决行业信息分散、孤立、不透明、难追溯等问题,加强区块链在交通运输行业中的应用,首先介绍了区块链哈希函数、非对称加密、默克尔树、智能合约、P2P网络等底层技术优势。然后,针对新冠肺炎疫情防控工作中卡口管控、医疗物资分配、防疫物资运输三个场景存在的问题,分析了区块链技术对提升交通运输管理的作用,并构建了区块链技术系统架构,设计了基于区块链技术的相关管理和技术流程。最后,提出促进行业信息资源共享、加强先进技术融合、加快底层技术建设与开发及区块链技术与管理体制相结合的政策建议,以促进区块链在交通运输行业疫情防控方面的应用。