The single vehicle routing problem with multiple routes is a variant of the vehicle routing problem where the vehicle can be dispatched to several routes during its workday to serve a number of customers. In this paper we propose a goal programming model for multi-objective single vehicle routing problem with time windows and multiple routes. To solve the model, we present a heuristic method wh...

Brain time and phenomenological time (draft) As 'tis from the disposition of visible and tangible objects we receive the idea of space, so from the succession of ideas and impressions we form the idea of time...-David Hume, Treatise of Human Nature ... space and time ... are therefore pure intuitions that lie a priori at the basis of the empirical. ... they are mere forms of our sensibility, wh...

ost of today's computing environ-ments—by design—support interaction between one person and one computer. The user sits at a workstation or laptop, or holds a personal digital assistant (PDA), focusing on a single device at a time—even with several devices around, linked and synchronized. Collaboration occurs over the network using e-mail, shared files, or in some cases explicitly designed grou...

As Director of the Office of Scientific Research and Development, Dr. Vannevar Bush has coordinated the activities of some six thousand leading American scientists in the application of science to warfare. In this significant article he holds up an incentive for scientists when the fighting has ceased. He urges that men of science should then turn to the massive task of making more accessible o...

This paper proposes a new approach based on Bonferroni mean operator and possibility degree to solve fuzzy multi-attribute decision making (FMADM) problems in which the attribute value takes the form of interval type-2 fuzzy numbers. We introduce the concepts of interval possibility mean value and present a new method for calculating the possibility degree of two interval trapezoidal type-2 fuz...