Elephants are one of the largest animals on earth and found in forests, grasslands savannahs tropical subtropical regions Asia Africa. A country like India, especially northeastern region, is covered by deep forests home to many elephants. Railroads an effective inexpensive means transporting goods passengers this region. Due poor visibility collisions between trains elephants increasing day da...

Designing a scheduling competition to attract researchers from the several fields interested in scheduling problems seems a challenging, and highly worthwhile effort. In this paper, we propose a design for one possible track of this proposed scheduling competition. Specifically, we propose a track aimed at one machine sequencing problems. We argue that any such track must include problems with ...

Track Maintenance is crucial for the safe and efficient of railway transportation. After analysis of foreign management techniques for high-speed railway track maintenance, combined with the characteristic of passenger dedicated line in China, this paper has explored new ideas of the information system of passenger dedicated line track maintenance and at the same time researched on the theory a...

Operations design in a network of suppliers and service providers requires a scheme by which the operations are assigned to the suppliers and service providers. This paper introduces a scheme for pattern-based operations design in an evolving multi-company network (i.e. “virtual enterprise”). It presents operations design patterns for solving four problems of managerial importance for customizi...

in this paper, the main factors in the analysis of the railway concrete sleepers areinvestigated and new recommendations are made in order to improve the accuracy of the currentpractices in analysis of the railway track system. first, a comprehensive literature survey isconducted, then, fem models for a railway track system are developed and used to discuss andevaluate the assumptions commonly ...

The inter-wire spacing in a VLSI chip becomes closer as the VLSI fabrication technology rapidly evolves. Accordingly, it becomes important to minimize crosstalk caused by the coupling capacitance between adjacent wires in the layout design for the fast and safe VLSI circuits. We present a simulated annealing approach based on segment rearrangement to crosstalk minimization in an initially gridd...