折线侧刃背板凸出型装载机铲斗容量计算与斗形设计

找出了侧刃为折线的背板凸出型装载机铲斗额定容量准确计算公式，并推导出额定容量与设计参数之间的函数关系，给出了铲斗设计的程序框图，使铲斗设计既快又准。     

15芯客车通信连接器

介绍了１５芯客车通信连接器的结构，技术参数和性能，通过与国内外客车连接器的比较，得出该连接器具有插拔方便，连接安全可靠，使用寿命长等优点。     

发动机动态试验台的优化设计

在应用电涡流测功器开发适用于轿车的发动机动态试验台过程中，以上海Ｓａｎｔａｎａ２０００模拟ＥＳＥ１５工况为例，对试验台控制系统的重要参数进行设计，对仿真结果失 及与底盘测功器实测车速轨迹的对比，证明了优化的效果。     

乳化沥青生产线微机—PC控制系统

本文简要介绍了乳化沥青生产的工艺流程,选择了由微机-PC 联合控制系统作为整个乳化沥青自动化连续生产的方案.结合乳化沥青的生产,从原理、硬件的配置、软件的编制等方面,对微机控制系统,PC 逻辑控制系统进行了详细阐述.     

地铁环境控制系统建模与神经网络修正

从传热机理出发建立地铁环境控制系统的初步模型.在此模型结构基础上进一步用BP算法对系统进行辨识,获得了较好的辨识效果.机理模型和神经网络模型分别应用于系统开发的实验室阶段和现场调试阶段,贯穿地铁环境控制系统开发的整个周期.     

高铁长沙南枢纽改造工程实施方案研究

研究杭长客专引入武广高铁长沙南站改造工程施工方案;提出客专枢纽改造工程信号过渡施工和分步实施的方法,以及施工的关键措施,对其他的客专枢纽改造工作具有借鉴意义。     

道岔阻力采样在故障监控分析中的运用

通过理论和实际分析,说明不能使用道岔电流曲线来判断三相交流转辙机的机械特性。使用道岔阻力曲线可以反映转辙机在转动过程中所受力的清况。通过将道岔阻力曲线划分为不同阶段,根据每个阶段的不同曲线模式,判断出道岔的故障点,并结合现有微机监测设备能更有效地监测诊断道岔的状态,保障行车安全。     

DETERMINATION OF URINE TUMOR NECROSIS FACTOR, IL-6, IL-8 AND SERUM IL-6 IN PATIENTS WITH HEMORRHAGIC FEVERS WITH RENAL SYNDROME

Objective To explore the roles of cytokines in the pathogenesis of hemorrhagic fever with renal syndrome（HFRS）. Methods Double-antibody sandwich ELISA was used to determine serum interleukin （IL）-6, urine tumor necrosis factor （TNF）, IL-6 and IL-8 levels in 56 patients with HFRS. Results Serum IL-6, urine TNF, IL-6 and IL-8 concentrations in HFRS patients were significantly higher than those in control group, respectively （P〈0. 001）. The concentrations increased at fever stage, then continued to increase during hypotension stage and peaked at oliguria stage. The concentrations of serum IL-6, urine TNF, IL-6 and IL-8 increased in accord with the severity of the disease and differed greatly among different types of the disease. Serum IL-6 had remarkable relationships with serum specific antibodies. It was positively related to serum β2 -microglobulin （β2 -MG）, blood ureanitrogen （BUN） and creatinine （Cr）. Significant positive relationships were also found both between urine IL-6 and TNF, and between IL-6 and IL-8 （r=0.5768, P〈0.05; r=0. 3760, P〈0.01）. Conclusion TNF, IL-6 and IL-8 activated during the course of the disease. IL-6 is associated with the immunopathological lesions caused by the hyperfunction of humoral immune response. IL-6, IL-8 and TNF are involved in the renal immune impairment. Determining them might, in certain extent, be used in predicting the prognosis and outcome of patients with HFRS.