电力调度工作中的风险及措施分析

随着社会经济水平的不断提高,人们在生活和工作中对于电力能源的需求越来越大,特别是近些年来电力能源交通工具的出现,使得电力的需求持续上涨,电力调度工作的重要性就更加明显地体现了出来。本文从对电力系统中电力调度工作的实际情况分析出发,找出了电力调度工作中存在的一些风险,并提出了几点具有针对性的解决措施,希望能够对电力调度工作的正常开展、对保障电力能源的安全稳定供应有所帮助。

基于流计算的实时监控预警架构研究及应用

随着国家电网IT建设的迅速发展,大数据问题逐步呈现。根据国家电网运营监控系统中遇到的实际问题,提出一种基于流计算的实时监控架构,通过试验,该系统具有极强的扩展性,能够在百GB级别数据量下,获得秒级的实时监控响应,对比传统的批处理架构,基于流计算的实施监控架构在监控实时性、集群扩展性上具有更大的优势。

Determination of the number of ψ' events at BES Ⅲ

The number of φ＇ events accumulated by the BESIII experiment from March 3 through April 14, 2009, is determined by counting inclusive hadronic events. The result is 106.41×（1.00±0.81%）×10^6. The error is systematic dominant; the statistical error is negligible.

Measurement of the integrated luminosities of the data taken by BESⅢ at √s=3.650 and 3.773 GeV

Data sets were collected with the BESⅢ detector at the BEPCⅡ collider at the center-of-mass energy of √s=3.650 GeV during May 2009 and at √s=3.773 GeV from January 2010 to May 2011. By analyzing the large angle Bhabha scattering events, the integrated luminosities of the two data sets are measured to be （44.49±0.02±0.44） pb-1 and （2916.94±0.18±29.17） pb-1, respectively, where the first error is statistical and the second error is systematic.

Determination of the number of J/ψ events with J/ψ → inclusive decays

The number of J/ψ events collected with the BES detector at the BEPC from June 12 to July 28, 2009 is determined to be （225.3 ± 2.8） × 10^ 6 using J/ψ→inclusive events, where the uncertainty is the systematic error and the statistical one is negligible.