单线铁路隧道水平岩层施工技术

南吕梁山隧道2#斜井进口围岩以水平层状泥岩、泥灰岩、灰岩为主,层理和节理裂隙发育,爆破后拱部极易出现平顶、落石、掉块、塌顶等现象,快速掘进、成本控制、安全风险等均难以得到保证。文章通过对开挖方法、超前加固、控制爆破、初期支护、监控量测等思考,提出了单线铁路隧道水平岩层施工中短台阶法开挖、超前小导管注浆、弱控制爆破、拱部中空注浆锚杆支护,以及地质超前预报、加强施工监测等主要施工方法和技术措施。     

快速公交(BRT)智能系统框架结构研究

以智能交通系统（ITS）为研究背景,针对快速公交系统的运营模式及主要特征,提出了适合我国公交现状的快速公交智能系统框架结构,同时对智能系统进行了较为翔实的分析和设计。     

第一套全国产化信号系统在大连快轨3号线中的应用

目前国内各城市地铁和轻轨的信号系统主要采用国外设备.大连快轨3号线率先在国内信号领域采用了一套全国产化的信号系统.介绍了该信号系统的组成、特点、功能及在大连快轨3号线中的应用.系统开通至今4年,运行稳定可靠,为国内城市轨道交通信号系统实现国产化,提供了一条新思路.     

Effects of new bus and rail rapid transit systems – an international review

Cities worldwide are implementing modern transit systems to improve mobility in the increasingly congested metropolitan areas. Despite much research on the effects of such systems, a comparison of effects across transit modes and countries has not been studied comprehensively. This paper fills this gap in the literature by reviewing and comparing the effects obtained by 86 transit systems around the world, including Bus Rapid Transit (BRT), Light Rail Transit (LRT), metro and heavy rail transit systems. The analysis is twofold by analysing (i) the direct operational effects related to travel time, ridership and modal shifts, and (ii) the indirect strategic effects in terms of effects on property values and urban development. The review confirms the existing literature suggesting that BRT can attract many passengers if travel time reductions are significantly high. This leads to attractive areas surrounding the transit line with increasing property values. Such effects are traditionally associated with attractive rail-based public transport systems. However, a statistical comparison of 41 systems did not show significant deviations between effects on property values resulting from BRT, LRT and metro systems, respectively. Hence, this paper indicates that large strategic effects can be obtained by implementing BRT systems at a much lower cost.     

捷联罗经方位大失准角下的快速对准方法

为解决大失准角情况下采用传统罗经对准方法存在的收敛时间长这一问题,提出一种基于重力视运动解析对准与罗经法线性对准模型相结合的捷联罗经快速对准方法。该方法首先利用重力矢量视运动规律进行解析对准迅速实现大失准角估计,然后在小失准角情况下利用罗经法完成精确对准。仿真试验结果表明:提出的方法在小失准角下与传统罗经法具有等效性,而在大失准角时具有更快的对准速度,在系泊晃动情况下也可快速对准。     

壁板坡特长隧道平导快速施工技术

壁板坡隧道是国内在建高铁特长隧道之一,为沪昆客专全线控制性工程。平导作为辅助坑道,在保证施工安全、控制工期和快速贯通等方面具有重要作用。壁板坡隧道平导全长14 717 m,独头掘进长度大、开挖工作面小、地质条件复杂、通风距离长,施工难度高等,为高风险隧道工程。根据壁板坡隧道平导快速施工的成功经验,总结出适用于长大隧道平导快速掘进的施工组织方案、超前地质预报措施、机械化作业配套方法和施工标准化管理方法。壁板坡隧道平导提前6个月贯通,创造了我国特长铁路隧道平导单口掘进长度8 000 m的新纪录。     

管内西安地区健康人群乙型肝炎五项检测结果分析

目的了解管内健康人群乙型肝炎免疫及感染状况。方法采用酶联免疫吸附试验（ELISA）对管内西安地区健康人群进行乙型肝炎五项检测。结果在检测的6747人中，抗-HBs阳性人数3818人，阳性率为56．59％，HBsAg阳性人数200人，阳性率为2．96％。结论管内西安地区健康人群HBsAg携带率明显低于国内平均水平，表明接种乙型肝炎疫苗的效果是良好的。     

The study of correlative factors to resistin and its regression equation in type 2 diabetes

Objective To study the changes of resistin and the relationship between resistin and other indexes in patients with type 2 diabetes mellitus. Methods Seventy patients with type 2 diabetics were chosen and divided into three groups according to weight index and 15 healthy persons were chosen as controls. ELISA was adopted to determine resistin concentration. Oxydase method was adopted to measure blood sugar. Radio immunoassay was used to measure insulin level. Results Resistin concentration of patient groups r(23.06±9.34)μg/L ] was significantly higher than that of control group [( 9. 89±4. 47) μg/L, P<0. 01 ]. Resistin was positively related to body mass index (r = 0.4 467) and fat distribution (r= 0. 3 314, P<0.01). Resistin was also positively correlated to the area under the curve of sugar tolerance (r=0. 7 063, P<0. 01), negatively related to the insulin resistance index (r=-0. 4 154, P<0.01), but not related to area under the curve of synchronous insulin release (P>0. 05). And a formula was obtainted : Resistin=- 15. 869 0. 339×GAUC 0.790×BMI. Conclusion The level of reslstin in type 2 diabetics is higher. And reslstin is related to other factors. This formula is of great significance for clinical study of diabetic's disor- ders.     

快速公交“整合式”运营模式分析——以杭州市B1线为例

为解决快速公交过多占用道路资源、影响其他车辆行驶的矛盾,缓和交通供需压力,以杭州市为例,对"整合式"运营模式进行分析.首先介绍杭州B1线实施"整合式"运营模式的背景,然后分析其实施的可行性,提出这种运营模式的优势是使B1线客流明显增长,系统设备得以充分利用.考虑到该运营模式对快速公交造成排队进站、停车时间延长、准点率下降等不利影响,建议引入的线路条数不宜太多,并提出减小影响的相关措施.     

酶联免疫吸附试验检测流行性出血热患者IgM抗体报告

本文介绍一种检测EHF特异性IgM抗体的ELISA间接法,在临床诊断应用中分别对耳血及静脉血清进行了平行检查,并与IFAT法进行了比较。结果表明:19例临床诊断为EHF患者耳血中ELISA—IgM阳性率为100％(19/19),IFAT—IgM阳性率为89.47％(17/19),且ELISA耳血IgM抗体滴度>IFAT耳血IgM抗体滴度者为68.47％(13/19)。实验发现,耳血ELISA—IgM抗体滴度明显高于静脉血清ELISA—IgM抗体滴度4倍者占73.68％(14/19)。作者认为,该方法特异性、敏感性较好,操作简便,只需要采用耳血就可以达到早期,快速诊断目的,值得推广使用。