Two permutations are similar if they have the same length and relative order. A collection of $$r\geqslant 2$$ disjoint, subsequences a permutation $$\pi $$ forms r-twins in . We study longest guaranteed which tight sense that either each twin alone block or their union does. address question with respect to random permutation.

in this paper, we investigate various kinds of extensions of twin-good rings. moreover, we prove that every element of an abelian neat ring r is twin-good if and only if r has no factor ring isomorphic to z2  or z3. the main result of [24] states some conditions that any right self-injective ring r is twin-good. we extend this result to any regular baer ring r by proving that every element of a...

This paper presents a twin-class transmission system for narrowband radio access channels suitable for handheld video phone and multimedia portable PC applications. The transmission system is comprised of a hierarchical 16-QAM modulation technique and a channel-coding scheme. The formation of dual-priority transmission is due to differing error resiliencies of the bits that make up a given symb...

In this paper, we investigate various kinds of extensions of twin-good rings. Moreover, we prove that every element of an abelian neat ring R is twin-good if and only if R has no factor ring isomorphic to‌ Z2  or Z3. The main result of [24] states some conditions that any right self-injective ring R is twin-good. We extend this result to any regular Baer ring R by proving that every elemen...

The skeletal Class III malocclusion though comparatively small in incidence is one of the most difficult malocclusion to treat. It can be due to maxillary retrognathism, mandibular prognathism or both. Reverse pull Headgear or Face Mask have been used for early maxillary protraction. Face mask therapy has been shown to improve the skeletal relationship. The article presents a case report of the...

The main objective of this paper is to present the MATLAB block-set that can be used for faulttolerant control of linear-parameter varying systems. In particular, the introductory part of the paper presents a theoretical background regarding the fault identification and control strategy. Subsequently, it is shown how to implement these theoretical results in Matlab/Simulink. The final part of t...

A lot of treatment options are available to treat a young individual with class III malocclusion. Most of them aim at correcting the maxillary deficiency and hardly any changes are seen in mandible. Moreover, most of the treatments are time consuming. This case report discuss a treatment option for three children between the age group of 8 to 10 years having class III malocclusion, with reverse...