Optimization of ship routing depends on several parameters, like ship and cargo characteristics, environmental factors, topography, international navigation rules, crew comfort etc. The complex nature of the problem leads to oversimplifications in analytical techniques, while stochastic methods like simulated annealing can be both time consuming and sensitive to local minima. In this work, a hy...

n Bangladesh, river floods, monsoon rains, and tropical cyclones are an integral part of the annual hydrological cycle, regularly affecting the livelihood and well-being of more than 100 million people. During years of severe flooding, for example in 1987, 1988, and 1998, the country was transformed by intermittent inland seas that occupied as much as 60% of its land surface. Wide swath synthet...

Were we required to characterise this age of ours by any single epithet, we should be tempted to call it, not an Heroical, Devotional, Philosophical, or Moral Age, but, above all others, the Mechanical Age. It is the Age of Machinery, in every outward and inward sense of that word; the age which, with its whole undivided might, forwards, teaches and practises the great art of adapting means to ...

During the last five decades the number of men of solid reputation and standing (including some speaking for commercial and scientific institutions) who are willing to be at least open-minded about the sea serpent has steadily grown. And it is very important to fix in one’s mind that these men use the term “sea serpent” with great reluctance and merely as a label, since this happens to be the e...

We describe the motivation for a programme of research “MP012: Software Architecture for Hybrid Decision Making” that is being undertaken in SEAS DTC Year 2. There are many ways to endow an autonomous system with intelligent behaviour, including planning, machine learning, and rule-based methods. Each of these has advantages in certain settings (scenarios, mission phases, etc) that we will aim ...

[1] Deep chlorophyll maxima (DCMs) are widespread features of oceans. In temperate regions, DCMs are commonly associated with isopycnal surfaces that frequently move over a wide vertical range. This general association between DCMs and isopycnals remains unexplained by present theories, and we show here that it emerges from the seasonal history of the water column. Analysis of the formation of ...

in this study the operations of melting of au15ag40 nanoalloy have been studied using the molecular dynamic simulations through the gupta multiparticle potential and the nonergodicity of simulations is eliminated by the multiple histogram method. the melting characteristics are determined by the analysis of variations in the potential energy. the calculations indicate that the melting of au15ag...

the determination of gyration radius is a strong research for configuration of a macromolecule. italso reflects molecular compactness shape. in this work, to characterize the behavior of theprotein, we observe quantities such as the radius of gyration and the average energy. we studiedthe changes of these factors as a function of temperature for acetylcholine receptor protein in gasphase with n...