Precedence constrained sequencing problem (PCSP) is related to locate the optimal sequence with the shortest traveling time among all feasible sequences. In PCSP, precedence relations determine sequence of traveling between any two nodes. Various methods and algorithms for effectively solving the PCSP have been suggested. In this paper we propose a cuckoo search algorithm (CSA) for effectively ...

Traveling surges are commonly adopted in protection devices of high-voltage direct current (HVDC) transmission systems. Lightning strikes also can produce large-amplitude traveling surges which lead to the malfunction of relays. To ensure the reliable operation of protection devices, recognition of traveling surges must be considered. Wavelet entropy, which can reveal time-frequency distributio...

In the practice of electrostatically actuated micro devices; the electrostatic force is implemented by sequentially actuated piecewise-electrodes which result in a traveling distributed electrostatic force. However; such force was modeled as a traveling concentrated electrostatic force in literatures. This article; for the first time; presents an analytical study on the stiffness variation of m...

Introduction: Travel health centers offer very important health services for individuals traveling abroad. Little is known about the health status and knowledge of travel health, travel-related diseases, and vaccinations of individuals who travel abroad and visit travel health centers. This research studied travelers who visited a travel health center in order to evaluate their...

We present the recent result [8] concerning existence of quasi-periodic in time traveling waves for 2d pure gravity water system infinite depth. provide first solutions bifurcating from a completely resonant elliptic fixed point. The proof is based on Nash-Moser scheme, Birkhoff normal form methods and pseudo-differential calculus techniques. deal with combined problems small divisors fully-non...

Traveling is not just a means for moving about; traveling is a pleasure. There are few people who do not like to travel. Traveling can mean visiting your family just a few miles away, and traveling can mean going around the world. But deep down, it is all the same: traveling. One of the oldest known examples is that of Herodotus, who traveled around the known world of the time, observing and re...