首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 281 毫秒
1.
为了提高流动电流仪(SCM)对自来水浊度检到的精度,文章提出了一种基于神经网络数据融合技术的数据处理方法。该方法可以消除到量中的原水流量、供电电源波动、絮凝剂浓度、温度等干扰量对流动电流仪的影响,提高了测量的精度。  相似文献   

2.
通过用TC-3C提升机安全性能检测仪对煤矿提升系统及其变位质量的检测,将变位质量的计算方法、测量方法、产生误差的原因及提高测量精度的措施进行了简单介绍、分析和探讨。  相似文献   

3.
文章提出了一种基于MSP430单片机和PDA的无线接触网电流检测方案,实现对接触网电流、温度的测量,数据的无线收发、显示及存储。该系统较传统的检测设备其电池续航能力提高50%以上,具有操作方便、可靠性强、测量精度高等优点。  相似文献   

4.
文章提出了一种基于MSP430单片机和PDA的无线接触网电流检测方案,实现对接触网电流、温度的测量,数据的无线收发、显示及存储。该系统较传统的检测设备其电池续航能力提高50%以上,具有操作方便、可靠性强、测量精度高等优点。  相似文献   

5.
谢静 《价值工程》2011,30(4):39-39
文章提出了用红外光电二极管、测量电路和频率计数器组成的新型测量单摆周期的自动检测计量仪,使传统经典实验充实了现代测量技术的新内容,从而有效地提高了用单摆测量重力加速度实验的实验精度。  相似文献   

6.
光伏太阳能模拟仪在测量光伏器件电性能的过程中,常常会因为各种因素导致测量结果产生偏差,从而削弱测量结果的权威性。本文从光源稳定性、光谱匹配、电信号接收转换、测量环境、接触电阻等几个方面进行了归类、分析,并给出相应的解决方案,以提高光伏器件的测量精度。  相似文献   

7.
《价值工程》2016,(3):117-119
利用单片机控制锂电池的充放电以及升压和降压拓扑电路构成高效双向DC-DC变换器电路以提高能源利用率。单片机通过控制加法器和运算放大电路反馈端数字电位器阻值以实现实现输出电流步进可调,通过PID算法控制降压电路的反馈电压微调输出电压值提高输出电压稳定性,采用电流传感器和电压衰减电路,并结合单片机和卡尔曼滤波算法提高实时测量系统状态电压、电流测量精度。  相似文献   

8.
随着新产品的不断更新换代,低压电器试验中被测电流范围越来越宽,要求测量装置能测量几安培到几万安培的电流,且测量的精度要求越来越高,很多情况下还要求实时、瞬时监测。本文设计并实现了一种宽范围的大电流监测装置,能实现实时和瞬时监测功能,且具有测量范围宽、精度高、运行稳定可靠、操作方便的特点,一定程度上提高了低压电器试验项目的检测效率。  相似文献   

9.
电子数字压力表是一款功能强大的便携式专业压力校验仪,具有高精度测量压力、电流、电压的功能.压力表在线测量能够提前发现环境压力的异常状态,向仪表检修人员提供真实可靠的参数.由于仪表在使用过程中操作不当或人为性的破坏,导致电子压力表测量精度降低,影响了最终数据的准确性.文章对提高在线测量装置的控制精度进行研究  相似文献   

10.
电流互感器是电力系统中测量电量、电能计量和继电保护的重要设备,其精度及可靠性与电力系统的安全、可靠和经济运行密切相关。文章针对目前电力工业对电子式电流互感器的要求,设计出了能可靠工作并且满足国家标准规定的有源光纤电流互感器。  相似文献   

11.
The Internet has become an integral part of business activities of most corporations today. Electronic supply chain management (SCM) can improve the operational efficiency of the firm by streamlining processes between the company and its suppliers, business partners, and customers. This research explores the extent and the degree of Internet application in Swedish small- and medium-sized enterprises (SMEs). The analyses of the data show that the Swedish SMEs use the Internet in their supply chain activities to a large degree. The study establishes some differences between smaller and larger organizations as well as between manufacturing and service companies.  相似文献   

12.
基于供应链管理的房地产企业核心竞争力研究   总被引:1,自引:0,他引:1  
刘新科 《价值工程》2008,27(1):62-64
针对我国房地产企业面临竞争压力不断加大的现状,将供应链管理的理论运用于房地产企业的开发项目,建立以房地产开发项目为载体的供应链模式;并以供应链模式为基础,建立以房地产开发企业为中心的项目供应链管理模式。然后对房地产项目供应链流程进行了分析,发现运用项目供应链管理,可以提高房地产项目开发的效率,优化房地产企业的价值链,增强房地产企业的核心竞争力。  相似文献   

13.
李莉  李晹  刘赫男 《物流技术》2007,26(8):147-151
基于循环经济理论,对传统供应链管理模式进行改进,提出了循环经济理念下新的供应链基本结构,构建了三种不同循环层面下的供应链管理模式,对如何在我国开展基于循环经济理念的供应链管理提出建议,并对其前景进行了展望。  相似文献   

14.
Supply chain strategies and their implementation have been recognized as a source of competitive advantage. According to the principle “structure follows strategy”, we expect the number of firms having supply chain management (SCM) functions represented on their top management team (TMT) to have increased in the past years. However, little is known about the degree to which executives responsible for SCM functions (i.e., Chief Supply Chain Officers) are present or absent in TMTs and if their presence is related to firm performance. Therefore, we study the TMTs of large US corporations and show that SCM is present in upper echelons, either through executives whose responsibilities explicitly include SCM or indirectly by executives, especially CEOs, who had acquired SCM experience in their previous positions. However, firms׳ operating margins are lower when a Chief Supply Chain Officer is present in the TMT.  相似文献   

15.
近年来,SCM一词的运用日趋频繁。但在不同文献中,对供应链管理研究内容及研究视角的观念各异,由此造成了SCM含义的模糊。本文在对供应链管理研究视角综述基础上,从理念、流程和运作角度等不同视角归类SCM研究,以期更好地把握供应链管理研究脉络。  相似文献   

16.
战略成本管理   总被引:3,自引:0,他引:3  
战略成本管理从概念的提出之日起就一直存在不同的理解和解释,什么是战略成本管理?怎样反映和提高企业的竞争地位?如何进行战略成本管理?不同的概念、模式与方法都成为难题,SHANK模式或许能给出最终的答案。  相似文献   

17.
电子商务导向的建筑企业供应链管理研究   总被引:4,自引:1,他引:4  
供应链管理和电子商务是建筑企业节约成本、缩短工期、提高质量的有效方法。电子商务又为供应链管理提供了廉价、便捷的信息支持。在此基础上,文章分析了建筑企业供应链管理与电子商务结合面临的若干问题,探讨基于电子商务的供应链管理在建筑企业应用的关键环节:合作与协同,大规模定制与集中采购,第三方物流与JIT供货。  相似文献   

18.
This empirical study represents the first attempt to explore how academics and practitioners engage each other in the Supply Chain Management (SCM) discipline, and provides a better understanding of collaborative SCM research between both parties. A two-pronged approach, involving a content analysis and an e-mail survey, is employed to explore the issues on collaborative SCM research. We examine 131 articles co-authored by both scholars and practitioners of 6 SCM journals from 2003 to 2013. Specifically, we analyse the motivations, expectations, and communication involved in the process of collaborative research. Our findings suggest that academics and practitioners can partner as co-investigators in research collaboration to better explore an array of SCM phenomena embedded in SCM practice. Further, building collaborative SCM knowledge relationships expedites collaboration and benefits SCM knowledge learning, transfer, and co-production. The development of practice-based scientific SCM knowledge is useful for SCM theory building and serves to bridge the gap between rigour and relevance.  相似文献   

19.
供应链管理:武钢与宝钢的对比分析及措施   总被引:1,自引:0,他引:1  
从供应链及供应链管理的角度将武钢与宝钢进行了对比分析,并为武钢改进供应链管理提出了几点对策措施。  相似文献   

20.
Supply chain maturity models attempt to disseminate best practices in supply chain management (SCM). One basic idea behind these models is that increased maturity will lead to improved supply chain performance, which in turn will lead to improved financial performance. There is, however, little empirical evidence about the relationship between supply chain (SC) maturity and financial performance, specifically in SMEs. The results of this study indicate that there is a strong relationship between SCM maturity and SC performance in SMEs, as well as some relationships between SCM maturity and financial performance. One conclusion is that if firms use maturity indicators in the Supply Chain Operations Reference areas to improve their processes, they will most likely achieve positive effects on supply chain performance and probably also on financial performance.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号