[Retracted] A Study on Nonvisual Effects of Natural Light Environment in a Maternity Ward of a Hospital in Cold Area

Figure 11

Whole-year Stim.freq distribution at each measuring point in the wards with different window-to-floor ratios. (a) 0.1 (i) measuring point a, (ii) measuring point b, (iii) measuring point c, and (iv) measuring point d; (b) 0.15; (c) 0.2; (d) 0.25; (e) 0.3, and (f) 0.35.

(a)

(b)

(c)

(d)

(e)