Implementation of SIC 2007 for the Vacancy Survey
SUMMARYThe article reports on the work to publish the Vacancy Survey on Standard Industrial Classification 2007 (SIC 2007). The main developments are:
changes to the survey design have led to changes in both the industrial groupings and employment size bands used for samplingcreation of historical series on a consistent basis with the latest dataseasonal adjustment of the new serieschanges made to published outputs, including the impact of the revisions.
Implementation of Standard Industrial Classification 2007: December 2009 update
AbstractONS initially publicised its plans for the implementation of SIC 2007 in Hughes (2008), and this was followed up with an article covering a wider Government Statistical Service angle (Brook and Hughes 2009). This article describes the methodological aspects of the move to SIC 2007; lays out the implications for
National Accounts; and gives an update on the timetable for implementation across the Labour Market Statistics outputs, some of the details of which have changed since the previous publication.
Application of Automatic Tracking Correlation Filtering in Motored Spindle Dynamic Balancing
According to the information characteristics of the dynamic imbalance signal and the definition of correlation function,the principles and algorithm of relevant filter with automatic tracking is given.In labview development system,based on the principles of relevant filter with automatic tracking,the graphics programming of extracting the dynamic imbalance signal is developed.With this programming,the vibration signal including different frequency harmonic signals and noise is processed by simulation and on-site experiment.The results show that: through relevant filter with automatic tracking,the dynamic imbalance signal under different rotating speed can be extracted accurately,and it can meet the requirement of motored spindle dynamic balancing measurement.