铁路客票印票机智能化控制软件的研究

铁路客票印票机是有价证券输出设备，它的可靠性直接影响铁路的声８雀和旅客的切身利益，本文提出了ＺＴ２００印票机的软件设计思想，研究了控制软件和接口驱动程序及提高软件智能化程度和可靠性的多种方法。     

基于JAXM标准化教育资源管理平台的设计

针对现阶段网络教育资源重用率低和不同系统之间耦合度非常高的现状，提出一个基于JAXM技术的标准化资源分布式管理平台，并论述该平台的体系结构和功能特点，同时详细介绍了JAXM技术的特点以及其他所运用的关键技术。     

小鼠混合骨髓移植中脾细胞诱导持久稳定嵌合体的作用

目的通过小鼠混合骨髓移植模型,将同基因和半相合异基因小鼠骨髓细胞和不同比例脾细胞混合移植给受鼠,探讨诱导持久稳定嵌合体、减轻严重移植物抗宿主病(GVHD)的方法。方法受鼠60Co全身照射,混合输入同基因和半相合异基因供鼠骨髓,同时将两者脾细胞按不同比例混合回输。测定嵌合体形成,观察GVHD表现及病理学改变,监测移植鼠生存率。结果小鼠移植后全部存活超过90 d,半相合异基因小鼠脾细胞输注剂量和比例对嵌合体形成的水平和嵌合状态的稳定性有显著影响。结论调整半相合异基因与同基因小鼠脾细胞输注剂量和比例对诱导异体持久植活、避免严重的GVHD的出现具有实际意义。     

塘河大桥加宽改造技术方案研究

在塘河大桥拓宽改造可行性研究的基础上,提出了几种横向拼接技术方案,并进行了相应的空间结构计算分析。计算表明,通过采取适当措施有效地控制了新桥的沉降量,老桥的受力可以满足拼接要求。     

乙型肝炎病毒基因型检测与肝炎临床的相关性

目的从分子水平探讨乙肝病毒基因型与HBVDNA水平、HBeAg阳性率的关系。方法采用微板核酸分子杂交ELISA法检测93例不同临床类型的乙肝患者的基因型。结果93例不同临床类型的乙肝患者中,以C基因型为主,其次为B基因型,部分以D型和混合型存在,无A、E、F型。按照亚急性乙型肝炎、慢性乙型肝炎、肝硬化的顺序,C基因型的检出率逐渐增高,B基因型的检出率逐渐降低。肝癌患者C基因型的检出率没有依次增高。C基因型HBVDNA(log值4.69±0.66)水平低于B型(log值5.33±0.66),但无统计学意义(P>0.05),而HBeAg阳性率C型(69.7%)大于B型(42%),且差别有统计学意义(P<0.05)。结论西安地区病毒性肝炎以C基因型为主,部分以B、D及混合型存在,未发现A、E、F型。除肝癌外,C型的检出率随临床类型的加重而增高,C型的HBVDNA水平低于B型,HBeAg阳性率显著高于B型。     

从道路交通安全发展的趋势浅谈预防措施——以上海市为例

我国实行改革开放以来,上海市道路交通得到了率先发展.为研究我国道路交通安全的发展趋势,文章以上海市近十年的道路交通事故数据为基础,综合考虑通车里程、总人口、机动车保有量、道路运输周转量和GDP等因素.分析交通事故与这些因素之间的关系,提出交通事故的预防措施.     

Traffic Organization with Simulation for Vehicles on Beijing Olympic Venues

During the Beijing Olympic Games, all venues needed to efficiently manage traffic circulations of the Olympic family members such as VIPs, technical officials, athletes, registered medium and so forth. Travel demand characters of the Olympic venues were analyzed and traffic management principles were proposed. By developing traffic simulation models and performing simulation study for the Olympic venues, suitability and efficiencies of venue traffic operation plans were analyzed and evaluated. A case study of the Wukesong Indoor Stadium and Baseball Fields is provided. Using micro-simulation package VISSIM, different traffic operation plans under various non-Olympic background traffic volumes were tested and evaluated, and the optimal plan was selected. Recommendations to improve the plans were also given based on the study results. The actual traffic operations during the Games proved that the proposed optimal traffic operation plan and recommendations were applicable and effective.     

舰艇编队远程通信保障系统研究

该文基于现有通信技术手段,从海军舰艇编队未来作战的使命任务出发,提出了海军舰艇编队远程通信保障系统的优化设计方案,在通信保障系统的总体框架下,阐述了海军远程通信保障系统的总体思路和实现方案。     

Determinants of crew injuries in vessel accidents

This study investigates determinants of the number of non-fatal crew injuries, fatal crew injuries and missing crew in freight ship, tanker and tugboat vessel accidents based upon individual accidents investigated by the US Coast Guard for the 1991–2001 period. Poisson and negative binomial regression estimates suggest that: (1) freight ship and tanker non-fatal injuries are higher when the vessel is moored or docked and during high winds and cold temperatures; (2) tugboat non-fatal injuries are higher during poor visibility; (3) freight ship fatal injuries increase with vessel age and tanker and tugboat fatal injuries are higher for fire and capsize accidents, respectively; and (4) freight ship missing crew increase with vessel age and tugboat missing crew are higher for fire and lake accidents.     

开车打手机对交通安全的影响研究

基于驾驶员对手机使用情况的统计分析数据，对开车打手机产生的危害及危害机理进行分析，同时通过数理统计理论找出开车打手机的特点和驾驶员存在的共性特征，并通过对开车打手机的现状分析得出其存在的原因并提出相应的解决对策，以期减少其对交通安全的危害，减少交通事故的发生。