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{\bf Hongtao Zhao}
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{\bf Another Product Construction for Large Sets of Resolvable Directed Triple Systems}
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A large set of resolvable directed triple systems of order $v$,
denoted by LRDTS$(v)$, is a collection of $3(v-2)$ RDTS$(v)$s based on
$v$-set $X$, such that every transitive triple of $X$ occurs as a
block in exactly one of the $3(v-2)$ RDTS$(v)$s. In this paper, we use
DTRIQ and LR-design to present a new product construction for
LRDTS$(v)$s. This provides some new infinite families of LRDTS$(v)$s.



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