The reaction of diazotetracyanocyclopentadiene with copper powder in the presence NEt4Cl yields, unexpectedly, besides known NEt4[C5H(CN)4] (3), NEt4 salt octacyanofulvalenediide (NEt4)2[C10(CN)8] (5), which can be transformed via AgNO3 to corresponding Ag+ (4), turn reacted KCl yield K+ 6. molecular and crystal structures 4–6 could determined, show a significantly twisted aromatic dianion uses...

Maximal Distance Separable (MDS) matrices are important components for block ciphers. In this paper, we present an algorithm for searching 4×4 MDS matrices over GL(4,F2). By this algorithm, we find that all the lightest MDS matrices have only 10 XOR counts. Besides, all these lightest MDS matrices can be classified to 3 types, and some necessary and sufficient conditions are presented for them ...

Maximal distance separable (MDS) matrices are important components for block ciphers. In this paper, we present an algorithm for searching 4 × 4 MDS matrices over GL(4, F2). By this algorithm, we find all the lightest MDS matrices have only 10 XOR counts. Besides, all these lightest MDS matrices are classified to 3 types, and some necessary and sufficient conditions are presented for them as we...

The general case of embedded (4, 5) pairs explicit 7-stage Runge–Kutta methods with FSAL property ( $$a_{7 j} = b_{ j}$$ , $$1 \le j 7$$ $$c_7 1$$ ) is considered. Besides exceptional cases, the form five 4-dimensional families. within two (already known) families satisfy simplifying assumption $$\sum _j a_{ij}c_{j} c_i^2 / 2$$ $$i \ge 3$$ .

The Bechdel test is a sequence of three questions designed to assess the presence of women in movies. Many believe that because women are seldom represented in film as strong leaders and thinkers, viewers associate weaker stereotypes with women. In this paper, we present a computational approach to automate the task of finding whether a movie passes or fails the Bechdel test. This allows us to ...