地铁人员疏散特征的调查分析

根据地铁中人员疏散的特殊性,设计科学的问卷调查表,并在地铁乘客中随机调查.通过对调查数据的统计分析,获得地铁中旅客的一般人员特征参数、人员对地铁结构和主要消防设施的熟悉程度、对火灾的第一行为反应等规律,从而为地铁火灾的性能化防火设计提供基础数据.     

高氧液在新生儿缺血缺氧性疾病中的应用

目的　探讨高氧液对新生儿缺血缺氧性疾病治疗的可行性及疗效。方法　采用比色法、血气分析检测 2 0例用高氧液患儿血浆SOD、MDA及血气变化 ,同时以 2 0例未用高氧液患儿作对照 ,观察临床症状、体征改变。结果　用高氧液组PaO2 、SaO2 明显升高 (P <0 .0 1) ,PaCO2 明显下降 (P <0 .0 1) ,同时有pH、HCO3 -、BE下降 ;血浆SOD升高、MDA下降 (P <0 .0 1) ;用高氧液临床症状体征迅速改善 ,有效率 95 % (P <0 .0 5 )。结论　高氧液对治疗新生儿缺血缺氧性疾病尤其是低氧血症有明显效果     

非对称三对角矩阵的特征值

首先将非对称三对角矩阵T化为对称三对角矩阵T^*，对于对称三角矩阵T^*和位移σ，给出由T^*求其简化矩阵T的算法。用带Wilkinson位移的OR方法求出对称三对角矩阵的特征值，给出的具体的算法在计算机上容易实现。     

基于模糊神经网络的Horn集上的输入归结

关于定理机器证明的归结原理已应用到人工智能的很多领域，同时提出了各种改进方法，其中，输入归结是一种非常好的推理方法，它对于Horn集是完备的，模糊神经网络是模糊逻辑与神经网络的融合，文中利用模糊神经网络的知识表示及学习的特点，结合输入归结的优点，进行Horn集上的输入归结。     

THE ROLE OF MAGNESIUM METABOLISM IN ESSENTIALHYPERTENSION WITH INSULIN RESISTANCE

Magnesiumisanimportantpositiveioninthebodyinvolvedinmanymetabolismsinthetissues,andalsoisanimportantcofactorforg1ucoseoxi-dizingmetabolism.Insulinisanimportantfactorinregulatingmagnesiuminbloodandce11s,itenab1esmagnesiumtogointothecellfromoutsidethecell,andregulatestheMg' levelthrougheffectsonglucoseoxidizingmetabolismt1i.Somescholarsassumethat"abnormalmagnesiumandcalciummetabolisminsidethecellmightbealinkingfactorinhypertensionandinsulinresistance[2)."Themechanismofmagnesiummetabolisminessent…     

微波辐射下合成2-氨基-5-芳氧亚甲基-1, 3, 4-噻二唑

在三氯氧磷作用下,由芳氧基乙酸和氨基硫脲经脱水环合,微波辐射快速合成了一系列2-氨基-5-芳氧亚甲基-1, 3, 4-噻二唑类化合物.目标产物的结构经红外光谱及熔点测定得到确证.该方法具有反应时间短、操作简便、副产物少、产率高、易纯化及环境友好等优点.     

舰艇动力系统监控设备维修训练平台的研制

为了解决舰艇动力系统监控设备维修技术要求高,训练难度大的问题,研制了基于模拟工作载体的舰艇动力系统监控设备维修训练平台。通过搭建油水管路和压缩空气管路模拟工作环境,安装舰用监控设备和仪器,实现了舰艇动力系统监控设备的功能模拟和操作使用,能够完成监控设备的操作使用、维护维修的教学和训练。实践证明,该平台适用于部队和院校,不仅能够保证多组人员同时开展监控设备技能训练,同时避免了动力系统实装的缺乏造成的影响和技能训练对实装造成的损坏。     

Modeling delay at signalized intersections with channelized right‐turn lanes considering the impact of blockage

This paper presents a probabilistic delay model for signalized intersections with right‐turn channelization lanes considering the possibility of blockage. Right‐turn channelization is used to improve the capacity and to reduce delay at busy intersections with a lot of right‐turns. However, under heavy traffic conditions the through vehicles will likely block the channelization entrance that accrues delay to right‐turn vehicles. If the right‐turn channelization gets blocked frequently, its advantage in reducing the intersection delay is neglected and as a result the channelization lane becomes inefficient and redundant. The Highway Capacity Manual (HCM) neglects the blockage effect, which may be a reason for low efficiency during peak hours. More importantly, using HCM or other standard traffic control methods without considering the blockage effects would lead to underestimation of the delay. To overcome this issue, the authors proposed delay models by taking into account both deterministic and random aspects of vehicles arrival patterns at signalized intersections. The proposed delay model was validated through VISSIM, a microscopic simulation model. The results showed that the proposed model is very precise and accurately estimates the delay. In addition, it was found that the length of short‐lane section and proportion of right‐turn and through traffic significantly influence the approach delay. For operational purposes, the authors provided a step‐by‐step delay calculation process and presented approach delay estimates for different sets of traffic volumes, signal settings, and short‐lane section lengths. The delay estimates would be useful in evaluating adequacy of the current lengths, identifying the options of extending the short‐lane section length, or changing signal timing to reduce the likelihood of blockage. Copyright © 2016 John Wiley & Sons, Ltd.     

重装备牵引车集装箱运输应用研究

为促进我军汽车部队集装箱与重装备的运输能力的发展,提出将重装备牵引车应用到集装箱运输中。在分析重装备运输车应用到集装箱运输中的必要性的基础上,对照外包物流公司运输,介绍了其成本—效益分析方法和量化方法,并以进藏冻肉冷藏集装箱铁公联运试点为例、对成本、效益进行了估算,验证了该运输方式的经济性和可行性。     

汽车机械变速器润滑油温升测试系统开发

为测试微型车机械变速器最高工作油温,设计了共直流母线能量回馈电封闭式变速器温升检测试验台。介绍了该试验台的结构、测试原理、通信方式、数据采集过程以及上、下位机的编程软件。温升检测结果表明,在高转速、无外界强制散热的情况下,该试验台可准确测试变速器工作油温,检测效率高,且负载发电机在温升试验空转时可以实现发电功能。