泰州地区汽车维修行业转型升级的几点思考     

沈立斌 《泰州职业技术学院学报》2013,(4):72-75

泰州地区经济正面临转型升级的大机遇,泰州地区汽车维修行业发展迅猛。文章首先描述了泰州地区汽车维修行业现状,而后详细分析了行业发展趋势及制约行业发展的主要因素;随后提出了行业转型升级的路径和措施,最后提出汽车维修行业转型升级今后努力方向。  相似文献   

智能阀门定位器在己内酰胺装置中的应用     

张娟  李炳旗  李仲秋 《兰州石化职业技术学院学报》2013,(2):7-9

介绍了智能阀门定位器及常规电气阀门定位器的工作原理。从使用、维护和经济三个方面对比分析了智能定位器和传统定位器的优缺点,发现智能阀门定位器具有性能稳定、调校方便、维修简单、成本低廉等优点。阐述了当前化工企业中广泛使用智能阀门定位器面临的挑战。  相似文献   

高职院校《计算机组装与维护》课程实训教学现状与分析     

甘秋维 《杨凌职业技术学院学报》2013,(2):56-58

《计算机组装与维护》是实践性很强的一门课程,通过对这门课程在实训教学过程中存在的一些问题进行分析,结合高职院校人才培养目标,提出解决问题的具体方法。  相似文献   

高校实验仪器设备安全使用与维修保养   总被引：2，自引：0，他引：2  

刘会玲  刘树庆 《实验室研究与探索》2013,32(6)

高校实验仪器设备是进行教学、科研和服务社会的重要物质基础,仪器设备的正常运转、安全使用与维修保养是确保教学、科研工作的顺利进行的关键。针对高校仪器设备在使用中存在的问题,从安全使用、档案管理、维修保养等方面进行研究,探索仪器设备安全使用与维护的途径。具体做法是:为仪器设备创造良好的工作环境,正确的使用仪器设备,保证仪器设备的安全和操作者的安全;加强仪器档案管理,做好日常使用管理工作,认真填写使用和维护记录,建立完整的技术档案;重视维修保养工作,建立仪器设备维护和维修制度,加强对实验技术人员的培训与管理,加强日常维护,科学维护,选择适当的维修方式。  相似文献   

数控装备维修的综合实践项目     

丁文政  王娟  汪木兰  侯军明 《实验室研究与探索》2013,32(7):130-133

针对我国数控装备维修人才培养的必要性和迫切性,构建了旨在提高数控装备维修工程应用能力的综合实践项目体系。该实践体系由故障检测分析,控制系统检修,机械系统检修3个模块组成,每个模块内又有若干子项目构成,子项目设计注重理论知识与工程应用的结合。通过3个模块子项目的训练,使学生能够循序渐进地在故障检测、控制系统和机械系统等各个环节开展探索性研究工作,最后完成设备的功能和精度恢复,从而培养学生应用理论知识解决工程问题的能力。教学实践表明,该综合项目在培养学生数控装备检测维修工程能力方面取得了良好效果。  相似文献   

分光计与读数显微镜的保养和维护     

吴钦飞 《江西教育学院学报》2013,(6):7-9

分光计与读数显微镜是常用的光学仪器,使用频率高。为了保正光学实验仪器的正常使用,同时延长仪器的寿命,总结了两种光学仪器保养与维护的有效方法。  相似文献   

The global significance of biodiversity science in China: an overview     

Xiangcheng Mi  Gang Feng  Yibo Hu  Jian Zhang  Lei Chen  Richard T Corlett  Alice C Hughes  Stuart Pimm  Bernhard Schmid  Suhua Shi  Jens-Christian Svenning  Keping Ma 《国家科学评论(英文版)》2021,8(7)

Biodiversity science in China has seen rapid growth over recent decades, ranging from baseline biodiversity studies to understanding the processes behind evolution across dynamic regions such as the Qinghai-Tibetan Plateau. We review research, including species catalogues; biodiversity monitoring; the origins, distributions, maintenance and threats to biodiversity; biodiversity-related ecosystem function and services; and species and ecosystems’ responses to global change. Next, we identify priority topics and offer suggestions and priorities for future biodiversity research in China. These priorities include (i) the ecology and biogeography of the Qinghai-Tibetan Plateau and surrounding mountains, and that of subtropical and tropical forests across China; (ii) marine and inland aquatic biodiversity; and (iii) effective conservation and management to identify and maintain synergies between biodiversity and socio-economic development to fulfil China''s vision for becoming an ecological civilization. In addition, we propose three future strategies: (i) translate advanced biodiversity science into practice for biodiversity conservation; (ii) strengthen capacity building and application of advanced technologies, including high-throughput sequencing, genomics and remote sensing; and (iii) strengthen and expand international collaborations. Based on the recent rapid progress of biodiversity research, China is well positioned to become a global leader in biodiversity research in the near future.  相似文献   

Data analysis and feature selection for predictive maintenance: A case-study in the metallurgic industry     

《International Journal of Information Management》2019

Proactive Maintenance practices are becoming more standard in industrial environments, with a direct and profound impact on the competitivity within the sector. These practices demand the continuous monitorization of industrial equipment, which generates extensive amounts of data. This information can be processed into useful knowledge with the use of machine learning algorithms. However, before the algorithms can effectively be applied, the data must go through an exploratory phase: assessing the meaning of the features and to which degree they are redundant. In this paper, we present the findings of the analysis conducted on a real-world dataset from a metallurgic company. A number of data analysis and feature selection methods are employed, uncovering several relationships, which are systematized in a rule-based model, and reducing the feature space from an initial 47-feature dataset to a 32-feature dataset.  相似文献   

具有生态意识的二维视情维修决策     

姜爱萍  王园园 《科技管理研究》2019,39(9)

为了避免预防性维修的决策判断过于片面,本文首先将系统劣化状态和能源效率指标相结合,建立了具有生态意识的二维视情维修决策模型,即当系统的劣化状态超过其阈值或者能源效率指标超过其阈值时（两者发生其一即可）,对系统进行预防性维修;然后将系统运行过程中的能源消耗成本纳入总成本中,并以单位有用产出的平均期望成本为目标函数建立优化模型;最后利用蒙特卡洛仿真和模拟退火算法进行算例分析。结果表明：与传统的只基于劣化状态或者能源效率指标的一维视情维修决策模型相比,本文新提出的二维视情维修决策模型更优,不仅可以降低企业维修成本,而且可以节约能源,满足可持续发展的时代要求。  相似文献   

Does religion matter? Italians’ responses towards Muslim and Christian Arab immigrants as a function of their acculturation preferences     

《Int J Intercult Relat》2020

A 2 × 2 × 2 experiment examined the role of immigrants’ religion and perceived acculturation strategy on majority members’ attitudes. Acculturation strategies were manipulated along the two dimensions of contact and culture maintenance. Italian majority members (N = 247) read fictitious but seemingly real interviews with Arab immigrants, in which the immigrants’ religion (Muslim vs. Christian) and acculturation preferences (desire for contact and for culture maintenance) were manipulated. MANOVA showed a main effect of contact: majority members associated immigrants who were perceived to favour contact with more positive attitudes, empathy, trust, positive stereotypes and metastereotypes, and lower levels of threat. MANOVA also showed a main effect of culture maintenance: when immigrants were perceived to abandon their culture, majority members reported lower levels of symbolic threat and greater empathy towards them. A significant Religion x Culture maintenance interaction effect emerged on majority members’ stereotypes and contact intentions: Muslim immigrants who were perceived to abandon their heritage culture elicited more favourable responses than Muslim immigrants who were perceived to maintain their heritage culture. Taken together, these findings suggest that desire for intergroup contact amongst immigrants, independently of their religion, can promote harmonious intergroup relations with the majority group.  相似文献