Número Completo v. 5, n. 2, (2022)

ISO-2022-JP-2: Multilingual Extension of ISO-2022-JP

For example, the escape sequence "ESC 2/4 2/8 4/3" or "ESC $ ( C" indicates that the bytes following the escape sequence are Korean KSC characters, which are encoded in two bytes each. The escape sequence "ESC 2/14 4/1" or "ESC . A" indicates that ISO 8859-1 is designated to G2. After the designation, the single shifted sequence "ESC 4/14 4/1" or "ESC N A" is interpreted to represent a characte...

N 2,N 2,N 5,N 5-Tetra­kis(2-chloro­ethyl)-3,4-dimethyl­thio­phene-2,5-dicarboxamide

In the title compound, C(16)H(22)Cl(4)N(2)O(2)S, the two imide groups adopt a trans arrangement relative to the central thienyl ring, so the four terminal 2-chloro-ethyl arms adopt different orientations. In the crystal, mol-ecules are linked by weak C-H⋯Cl and C-H⋯O hydrogen bonds into a three-dimensional network.

$n$-cocoherent rings‎, ‎$n$-cosemihereditary rings and $n$-V-rings

 Let $R$ be a ring‎, ‎and let $n‎, ‎d$ be non-negative integers‎. ‎A right $R$-module $M$ is called $(n‎, ‎d)$-projective if $Ext^{d+1}_R(M‎, ‎A)=0$ for every $n$-copresented right $R$-module $A$‎. ‎$R$ is called right $n$-cocoherent if every $n$-copresented right $R$-module is $(n+1)$-coprese-nted‎, ‎it is called a right co-$(n,d)$-ring if every right $R$-module is $(n‎, ‎d)$-projective‎. ‎$R$...

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8 v 5 2 5 Ja n 20 02 Nonadiabatic conditional geometric phase shift with NMR

A conditional geometric phase shift gate, which is fault tolerant to certain types of errors due to its geometric nature, was realized recently via nuclear magnetic resonance(NMR) under adiabatic conditions. By the adiabatic requirement, the result is inexact unless the Hamiltonian changes extremely slowly. However, in quantum computation, everything must be completed within the decoherence tim...