We report electrical resistivity and thermopower measurements of two alloy
of the(UxY1-x)Ru2Si2 alloy system (x = 0.08 and 0.30). For x = 0.08, we hav
e found evidences for impurity Kondo scattering from the lowest lying CEF l
evels with T-K = 10 K. The sample with x = 0.3 shows an antiferromagnetic t
ransition at 15.3 K. Thereby we conclude that the two energy scales, T-K an
d T-RRKY are close to and compete against each other in dilute U of YRu2Si2
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