修井作业现场3G网络视频监控系统的研究

目前油田修井作业现场生产方式存在信息不畅通的问题,无法实时跟踪监控井场安全生产运行情况和设备安全运转情况。研究应用"修井作业现场3G网络视频监控系统",能很好的解决作业现场视频信息及时交换问题,较好的解决了较偏远的作业队督查、监控问题,提高油田修井作业现场安全管理和应急管理水平。     

环境监测在环境影响评价中的分析

在新的时期下,环境保护工作的发展面临着新的机遇和挑战。环境监测贯穿于整个环境影响评价体系中,环境影响评价中的评价初期、建设期、运行期以及后评价期,均由环境监测数据来支撑结果,是环境影响评价的技术基础,同时具有较强的监督功能。     

二级教学管理体制下的高职院校教学质量监控体系的构建

学院与教学系的权责关系、教学管理的规范化与教学环境的权变性,教学质量的规格性与社会需求的多样性构成了二级教学管理体制下的高职院校教学质量监控的矛盾,科学的处理好这些矛盾是二级教学管理体制下的高职院校教学质量监控体系的构建的主要任务。     

清远抽水蓄能电站碎石系统建设实践

清远抽水蓄能电站碎石系统主要由两个区组成,一区包括碎石系统粗碎车间、半成品堆场,二区包括碎石系统预筛分及中细碎车间、筛分车间和成品碎石堆场。碎石系统采用两段破碎的工艺流程进行生产。     

Monitoring trends of technological changes based on the dynamic patent lattice: A modified formal concept analysis approach

The strategic importance of monitoring technological changes is highlighted given the ever faster pace and increasing complexity of technological innovation. In this respect, patent citation analysis has been the most frequently adopted tool among others. However, patent citation analysis is subject to certain drawbacks that stem from only consideration of citing-cited information and time lags between citing and cited patents. This study proposes a formal concept analysis (FCA)-based approach to developing a dynamic patent lattice that can analyze complex relations among patents and monitor trends of technological changes. The FCA is a mathematical tool for grouping objects with shared properties based on the lattice theory. The distinct strengths of FCA, vis-á-vis other methods, lie in structuring and displaying the relations among objects from a massive amount of data. For the purpose of technology monitoring, the FCA is modified to take into account time periods and changes of patent keywords. A patent context is first constructed with the aid of domain experts and text mining technique. Two types of dynamic patent lattices are then developed by executing the modified FCA algorithm. A case study of laser technology in lithography for semiconductor manufacturing shows that the suggested dynamic patent lattice has considerable advantages over conventional patent citation maps in terms of visualization and informative power.     

Financial amplification of foreign exchange risk premia

Theories of financial frictions in international capital markets suggest that financial intermediaries' balance sheet constraints amplify fundamental shocks. We present empirical evidence for such theories by decomposing the U.S. dollar risk premium into components associated with macroeconomic fundamentals, and a component associated with financial intermediary balance sheets. Relative to the benchmark model with only macroeconomic state variables, balance sheets amplify the U.S. dollar risk premium. We discuss applications to financial stability monitoring.     

我国社会中介组织监管模式的反思与重构

随着我国市场经济体制的逐步建立以及社会结构的日趋分化,促进社会中介组织快速发展、建立完善的社会中介组织监管体系是和谐社会建设中的重大课题。然而我国现行的社会中介监管体制及手段由于受多种因素的制约,已明显落后于发展的需要,面临监管存在盲区、监管效率不高、力度不够等困境。为更好地提高监管能力,需要从监管理念、监管体制、监管模式等方面进行创新。     

水体中高锰酸盐指数测定方法的现状与进展

对高锰酸盐指数的测定方法进行了较全面的综述,明确提出应严格控制实验条件,采取必要的质量措施,以保障实验数据的准确度与精密度。针对高锰酸盐指数在线监测,强调重视仪器稳定性、低故障、高精度以及易于维护与更新,以期更好的发挥在线自动监测仪的优势。     

基于“北斗一代”的Zigbee无线网关设计

为了解决野外多点数据采集无供电、布线复杂和通信困难的问题,提出了一种基于“北 斗一代”的Zigbee无线网关设计方案。采用MSP430F6438、CC2341微处理器和一体化的RDSS “北斗”射频芯片完成低功耗、小成本的硬件设计。通过增加SIM卡的数量,将网关转发“ 北斗”数据的频率降至最低的5 s,提高了网关的通信速率。通过软件设计实现了Zigbee无 线传感网络和“北斗一代”系统之间数据的透明交换。该方法已成功应用于野外油气井远程 监控系统中。