In this paper a family of constacyclic ternary quasi-perfect linear block codes is presented. This family extends the result presented in a previous work by the first two authors, where the existence of codes with the presented parameters was stated as an open question. The codes have a minimum distance 5 and covering radius 3.

The packing chromatic number (G) of a graph G is the smallest integer k such that there exists a k-vertex coloring of G in which any two vertices receiving color i are at distance at least i + 1. Let S be the base-3 Sierpiński graph of dimension n. It is proved that (S ) = 3, (S ) = 5, (S ) = (S ) = 7, and that 8 ≤ (S ) ≤ 9 holds for any n ≥ 5.

In this note the existence of a (Vj P2j 4, 2) BTD I for P2 = 0, 1 and 2, in which any pair of blocks intersect in at most two elements, is proved for any admissible v. A balanced ternary design is a collection of multi-sets of size k, chosen from a v-set in such a way that each element occurs 0, 1 or 2 times in anyone block, each pair of non-distinct elements, {x, x}, occurs in P2 blocks of the...

an extraction-spectrophotometric method for the determination of trace amounts of ammonium ion is described. ammonium ion is effectively extracted as a neutral ternary complex nh . db 18c6. calmagite at ph 3.0 into chloroform, followed by spectrophotometric determination at =48 5 nm. molar absorptivity of the ternary complex at this wavelength is 1.08 10 mol cm . beer's law is obeyed over ...

This work in progress examines the roles that Trust in Technology (TRIT) and Computer Self-efficacy (CSE) play in predicting post-adoptive usage behavior. Under the umbrella of social cognitive theory, it uses attribution theory and the trust literature to develop an integrative model of trust and self-efficacy. Specifically, we posit that TRIT impacts users’ CSE and that these beliefs lead to ...

In this paper we report on the Flemish-Dutch Agency for Human Language Technologies (HLT Agency or TST-Centrale in Dutch) in the Low Countries. We present its activities in its first decade of existence. The main goal of the HLT Agency is to ensure the sustainability of linguistic resources for Dutch. 10 years after its inception, the HLT Agency faces new challenges and opportunities. An import...

There exists a balanced ternary design with block size 3 and index 2 on 2v P2 + 4 and 2v P2 + 1 elements with a hole of size v, for all positive integers v and P2, such that v ~ 2P2 + 1. As an application of this result, we determine the numbers of common triples in two simple balanced ternary designs with block size 3 and index 2, for P2 = 3 and 4.

421 As a matter of fact, they are from 5 different cognate ternary pairs as listed above. According to the definition cognate and the tardiness theory of the normalized ternary pair, cognate ternary pairs have the same normalization result. Therefore, any five of different cognate ternary pairs can represent total 15 different standard ternary pairs. We can select the first one from each monolo...