Influence of window-wall ratio on annual energy consumption for heating and air conditioning in residential buildings;

Analysis on influence of east-facing and west-facing window-wall ratios on office building energy consumption in Nanjing area;

Effects on residential buildings from area ratio of window to wall in hot summer and cold winter zone;

Changes of heating energy consumption and PMV with the area ratio of window to wall were obtained,which was also analyzed through indoor heat load and mean PMV.

The bit-window method in the pre-process of the CT image and two-dimensional histogram method in the image segmentation were successively adopted and the defect of a inspected workpiece was revealed very well.