气候试验使列车免受暴风雨雪影响

介绍了利用气候风洞试验,模拟自然环境温湿度条件及暴风雨雪等恶劣气候条件,来验证新型列车各关键部件的功能性和安全性指标是否满足标准要求,为车辆的实际运营降低故障发生率.     

通过气候风洞试验可提高车辆能效

介绍了维也纳阿森纳尔铁路技术试验中心利用气候风洞实验室,对轨道车辆的空调系统进行节能的试验研究。在不影响舒适性的情况下,通风采取新风量调节和废排风的热回收,可以显著降低能源的消耗。     

奥地利铁路Rh1216系列多电流制通用电力机车--第3代EuroSprinter机车

介绍了EuroSprinter机车家族3代机车的发展概况并比较了不同技术特点,着重阐述第3代Rh1216机车继承了前2代机车的哪些成熟经验,改进了哪些主要部位。Rh1216机车是性能更完善的多电流制通用电力机车,并于2005年春投入3台样车在奥地利、德国、瑞士和捷克进行试验。     

进行轨道车辆气候试验的优点

介绍了轨道车辆的气候试验可以在热舒适性、功能性测试和实际经验等方面受益。     

Colonization of a new man-made river (Marchfeldcanal, Lower Austria) by benthic copepods

The role of copepods in the colonization and emigration processes of benthos and drift of an irrigation canal were studied. During the 3 first years of existence of the canal, fifteen species of copepods were recorded (1 diaptomid, 11 cyclopoids, 3 harpacticoids). Copepod succession in the canal was initially represented by lentic species, then by predatory species like Macrocyclops albidus that developed with the proliferation of filamentous algae and epibionts during the first two years. Primary consumers appeared from the beginning of the flowing conditions but started to dominate only from the third year. Smaller species associated with the bed sediments like the harpacticoid species Nitocra hibernica, were late colonizers. The latter as well as Paracyclops fimbriatus and Eucyclops serrulatus were the dominant copepod species in the canal. Total copepod density in the benthos ranged from 15,800 to 68,000 ind./m², with a mean of 7.6% of the total zoobenthos. Copepods constituted up to 25% of the total faunal drift density, ranging from 50 to 140 ind./m³. Their highest abundance was observed around midnight. A three-fold increase of the discharge temporarily affected the drift density, but did not change the diel rhythm of the drift. Cyclopoid copepods namely P. fimbriatus (54.77%), copepodid cyclopoids (20.76%) and E. serrulatus (16.11%) formed the main part of the drift samples. The harpacticoid Nitocra hibernica was a minor participant in the drift processes.     

监控量测技术在浦南高速公路隧道施工中的应用

以监控量测技术在浦南高速公路隧道施工中的成功应用为例,重点阐述监控量测的组织管理、实测过程、数据分析和信息反馈,对隧道围岩稳定性进行评价,以此调整支护和二次衬砌的结构参数、施作时间,从而指导隧道工程快速、安全施工。