Rensselaer Polytechnic Institute

About: Rensselaer Polytechnic Institute is a education organization based out in Troy, New York, United States. It is known for research contribution in the topics: Terahertz radiation & Finite element method. The organization has 19024 authors who have published 39922 publications receiving 1414699 citations. The organization is also known as: RPI & Rensselaer Institute.

An Entrepreneurial System View of New Venture Creation

Abstract: This paper reports the results of a two‐phase study that explores new venture creation within the context of an entrepreneurial system. First, a genealogy of high‐technology companies is presented ...

An infrared spectroscopic study of water-related species in silica glasses

Abstract: Infrared (IR) spectroscopic measurements were made on types I, III and IV silica glass specimens before and after they were subjected to heat treatments at 80–1150°C in low-pressure steam, ambient air and dry air. In addition to the standard silanol band at 3672 cm−1, IR features attributed to free, hydrogen-bonded and structurally bound molecular water and to silanol which is hydrogen-bonded to neighboring silanol groups, water molecules and chlorine impurities were found to exist even in glasses with maximum total water concentrations of less than approximately 500 ppm H2O by weight. The existence of these species and their behaviors during heat treatments suggest a specific mechanism for the reaction between silica glass and molecular water. In addition, it is shown that the glass-water reaction does not attain equilibrium instantaneously at temperatures below 750°C.

VIP-Man: an image-based whole-body adult male model constructed from color photographs of the Visible Human Project for multi-particle Monte Carlo calculations.

Abstract: Human anatomical models have been indispensable to radiation protection dosimetry using Monte Carlo calculations. Existing MIRD-based mathematical models are easy to compute and standardize, but they are simplified and crude compared to human anatomy. This article describes the development of an image-based whole-body model, called VIP-Man, using transversal color photographic images obtained from the National Library of Medicine's Visible Human Project for Monte Carlo organ dose calculations involving photons, electron, neutrons, and protons. As the first of a series of papers on dose calculations based on VIP-Man, this article provides detailed information about how to construct an image-based model, as well as how to adopt it into well-tested Monte Carlo codes, EGS4, MCNP4B, and MCNPX.