With the ongoing concerns about climate change and the rising costs of energy, the necessity for more efficient household and commercial energy use is now more critical than ever. http://[email protected]@cgi.members.interq.or.jp/ox/shogo/ONEE/g_book/g_book.cgi?_x_tr_sl=auto%26_x_tr_tl=fr%26_x_tr_hl=fr%26_x_tr_sch=http