LONDON, Aug 8 (Reuters) - Kazakhstan's Adilbek Niyazymbetov beat Iran's Ehsan Rouzbahani 13-10 in an Olympic men's boxing light heavyweight quarter-finals bout on Wednesday.   Results Table    Adilbek Niyazymbetov (Kazakhstan) beat Ehsan Rouzbahani (Iran) 13-10   Egor Mekhontsev (Russia) beat Elshod Rasulov (Uzbekistan) 19-15        Yamaguchi Falcao (Brazil) beat Julio Cesar de la Cruz (Cuba) 18-15      Keywords: OLY BOXI BXM81K/