LAB (Linear Alkyl Benzene) isomers were obtained by the alkylation of benzene with 1-
dodecene over FAU, BEA and EMT zeolites in the presence of decane as solvent. The initial …

Problems encountered in fields like scheduling, assignment, vehicle routing are mostly NP-
hard. These problems need efficient solution procedures. If confronted with an NP-hard …

The purpose of this article is to describe an efficient search heuristic for the Maximum Edge-
weighted Subgraph (MEwS) problem. This problem requires to find a subgraph such that the …

This paper approaches the problem of designing a two-level network protected against
single-edge failures. The problem simultaneously decides on the partition of the set of nodes …

Network design and network synthesis have been the classical optimization problems in
telecommunication for a long time. In the recent past, there have been many technological …

We consider the problem of designing hierarchical two layer ring networks. The top layer
consists of a federal-ring which establishes connection between a number of node disjoint …

This article considers the problem of designing a two‐level network where the upper level
consists of a backbone ring network connecting the so‐called hub nodes, and the lower …

We study the problem of designing at minimum cost a two-connected network such that each
edge belongs to a cycle using at most K edges. This problem is a particular case of the two …

A central design challenge facing network planners is how to select a cost-effective network
configuration that can provide uninterrupted service despite edge failures. In this paper, we …

Network security and survivability are critical components of the global telecommunication
infrastructure. However, due to a string of recent events, including the attacks on the World …