机械生产设备维修及更新的经济技术分析

通过对设备的维修与更新的技术经济分析,使管理者对生产设备可以确定一个最佳的更新时期,并对超过最佳服务期的设备使用提出了选择方法与方案。     

建设多媒体教室快速维护系统

在正常教学秩序的维持和教学效率的保障方面,多媒体设备系统的快速维护是一个关键节点,本文从硬件、软件、管理队伍建设及制度保障几方面入手,就如何构建多媒体教室快速维护系统进行了探讨.     

浅谈移液器的维护与保养

移液器是每个实验室必不可少的精密仪器,它的准确度直接影响着实验结果.如何正确地使用与维护移液器,无论是对实验室,还是对实验人员,都显得尤为重要.     

Flocking of multi-robot systems with connectivity maintenance on directed graphs

Analysis and design techniques for cooperative flocking of nonholonomic multi-robot systems with connectivity maintenance on directed graphs are presented. First, a set of bounded and smoothly distributed control protocols are devised via carefully designing a class of bounded artificial potential fields （APF） which could guarantee the connectivity maintenance, col ision avoidance and distance stabilization simultaneously during the system evolution. The connectivity of the underlying network can be preserved, and the desired stable flocking behavior can be achieved provided that the initial communication topology is strongly connected rather than undirected or balanced, which relaxes the constraints for group topology and extends the previous work to more generalized directed graphs. Furthermore, the proposed control algorithm is extended to solve the flocking problem with a virtual leader. In this case, it is shown that al robots can asymptotically move with the desired velocity and orientation even if there is only one informed robot in the team. Finally, nontrivial simulations and experiments are conducted to verify the effectiveness of the proposed algorithm.     

Data driven modeling for power transformer lifespan evaluation

Large sized power transformers are important parts of the power supply chain. These very critical networks of engineering assets are an essential base of a nation＇s energy resource infrastructure. This research identifies the key factors influencing transformer normal operating conditions and predicts the asset management lifespan. Engineering asset research has developed few lifespan forecasting methods combining real-time monitoring solutions for transformer maintenance and replacement. Utilizing the rich data source from a remote terminal unit （RTU） system for sensor-data driven analysis, this research develops an innovative real-time lifespan forecasting approach applying logistic regression based on the Weibull distribution. The methodology and the implementation prototype are verified using a data series from 161 kV transformers to evaluate the efficiency and accuracy for energy sector applications. The asset stakeholders and suppliers significantly benefit from the real-time power transformer lifespan evaluation for maintenance and replacement decision support.     

The 12th International Conference on Service Systems and Service Management ICSSSM'15

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现代物流设备管理和维护

物流设备管理和维护就是对物流设备的运行全过程进行组织、控制和维护。它贯穿于整个物流活动之中,是物流活动有效进行的保障。物流设备管理和维护不仅能确保设备安全运行,而且能使设备得到合理的使用。文章就立体库的RF系统的管理及物流设备的维护两个方面浅析现代物流设备的管理和维护。     

光纤通信技术发展现状及日常维护

光纤通信因其具有损耗低、传输频带宽等优点,发展非常迅速。目前,已经进入邮电、广播、电力、石油和军事通信等各领域。近年来,光纤通信得到了长足的发展,大幅提高了通信能力。文章将对此及光传输设备的维护做简单的论述。     

ELMB-75型掘进机电控系统常见故障分析与维护保养

在煤矿企业,掘进机作为重要的生产设备之一,其电控系统为整机正常运行提供源动力。因此,提高对电控系统管理与维护水平,迅速排除常见故障,是掘进机正常运行、矿山生产顺利进行的重要保障。     

微表处施工技术探讨

在稀浆封层基础上发展起来的微表处技术,成为目前在国际上应用非常广泛的修复道路车辙及其他多种路面病害的最有效、经济的预防性养护手段之一.近几年该技术在国内得到越来越多的关注,许多省市已在多条高等级公路上使用了该技术.但由于对微表处的应用范围、材料选择、技术要求、施工步骤和施工工艺以及施工质量控制等方面缺少足够的认识和了解,国内在微表处技术的使用过程中还存在许多问题.本文结合国内外的相关技术标准及国内施工经验,从微表处混合料的施工性能、施工前的准备工作、施工工艺流程等方面入手,探讨了微表处施工中应注意的问题及施工质量控制.