In this paper we discuss the nature and the possible formation scenarios of the companion of the brown dwarf 2MASS 1207334-393254. We initially discuss the basic physical properties of this object and conclude that, although from its absolute mass (5MJup), it is a planetary object, in terms of its mass ratio q and of its separation a with respect to the primary brown dwarf, it is consistent wit...

SIMULATION OF THE NEOFORMATION PROCESSES OF NANO-SIZED FE-Ni AND MAGNETITE PARTICLES IN BROWN COLORED OLIVINES OF SOME MARTIAN METEORITES (SNC). V.H. Hoffmann, T. Mikouchi, T. Kurihara, M. Funaki, M. Torii, 1 Institute for Geosciences and ZAG, University of Tübingen, Sigwartstrasse 10, 72076 Tübingen, and 2 Department of Geoand Environmental Sciences, University of München, Theresienstrasse 41,...

Splash is a research project aimed at building a framework that supports the integration of multiple existing models, simulations, and data that represent parts of the broader health ecosystem. Specifically, our goal is to create a platform that takes expert models of constituent real-world systems related to health, synthesizing and integrating those models, resulting in an interoperating comp...

A rider in a roller coaster lets go of a particle such as a small marble. How far does the marble travel horizontally from the point of release before hitting the ground, assuming the speed of the roller coaster is determined by conservation of mechanical energy starting from the highest hill up which it was pulled? Where should the marble be released along the track if one wishes to maximize t...

Observations in the past decade have revealed extrasolar planets with a wide range of semi-major axes and eccentricities. Based on the present understanding of planet formation via core accretion and oligarchic growth, we expect that giant planets often form in closely packed configurations. While the protoplanets are embedded in a protoplanetary nebula, dissipation prevents eccentricity growth...

We study the final architecture of planetary systems that evolve under the combined effects of planet-planet and planetesimal scattering. Using N-body simulations we investigate the dynamics of marginally unstable systems of gas and ice giants both in isolation and when the planets form interior to a planetesimal belt. The unstable isolated systems evolve under planet-planet scattering to yield...

Products and services offered under the smart city umbrella cut across numerous city operations and systems that benefit a range of stakeholders. Increasing urban populations raise the needs for innovative systems that are capable of regulating the use of resources within cities. City inhabitants are first-hand victims of the potential problems accompanying urban living. Much often, the inputs ...

We examine a single-item, periodic-review inventory system with stochastic leadtimes, in which a replenishment order is delivered immediately or one period later, depending probabilistically on costly effort. The objective is to determine an inventory policy and an effort-choice strategy that minimize the expected total costs. Our analytical and computational analysis suggests that (i) a state-...

Ontologies are becoming a recognizedvehicle for knowledge reuse, knowledge sharing,and modeling. This paper presents PLANET, an ontology for representing plans. To show that PLANET is a comprehensive ontology that can be reused to build new applications, we describe several specializations of it to represent plans in three different real-world domains that were made by adding minor extensions t...

We present a study of the relative sizes of planets within the multiple candidate systems discovered with the Kepler mission. We have compared the size of each planet to the size of every other planet within a given planetary system after correcting the sample for detection and geometric biases. We find that for planet-pairs for which one or both objects is approximately Neptune-sized or larger...