Experimental analysis of running gear-soil interaction traditionally focuses on the measurement of forces and torques developed by the running gear. This type of measurement provides useful information about running gear performance but it does not allow for explicit investigation of soil failure behavior. This paper describes a methodology based on particle image velocimetry for analyzing soil...

Exploration Rovers 2 3 4 Christopher A. Brooks, Karl Iagnemma 5 Department of Mechanical Engineering 6 Massachusetts Institute of Technology 7 Cambridge, MA 02139 8 [email protected], [email protected] 9 10 Abstract 11 12 For future planetary exploration missions, improvements in autonomous rover 13 mobility have the potential to increase scientific data return by providing safe 14 access to geol...

This paper presents an adaptive learning model for market-making under the reinforcement learning framework. Reinforcement learning is a learning technique in which agents aim to maximize the long-term accumulated rewards. No knowledge of the market environment, such as the order arrival or price process, is assumed. Instead, the agent learns from realtime market experience and develops explici...

We design and implement a system that recommends musicians to listeners. The basic idea is to keep track of what artists a user listens to, to nd other users with similar tastes, and to recommend other artists that these similar listeners enjoy. The system utilizes a client-server architecture, a web-based interface, and an SQL database to store and process information. We describe Audiomomma-0...

Research comparing centralized and decentralized coordination schemes is often contradictory. This paper focuses on this issue in the context of agent-based marketplaces. Specifically, we use a computational approach to study the trade off between imperfect decision-making by the central coordinating agent (the central authority) and the imperfect coordination among decentralized seller agents....

Sulfonephthaleins and benzeins differ only in the presence of a sulfonic acid group in the former. In aqueous medium, both exhibit two color changes, one from yellow to the strongly colored acid form in strongly acid medium, and one from yellow to the strongly colored basic form. The indicator constants of the sulfonephthaleins are about the same as those of the corresponding benzeins. In the p...

Impressive claims have been made for the performance of the SNoW algorithm on face detection tasks by Yang et. al. [7]. In particular, by looking at both their results and those of Heisele et. al. [3], one could infer that the SNoW system performed substantially better than an SVM-based system, even when the SVM used a polynomial kernel and the SNoW system used a particularly simplistic \primit...

This KDI/NCC proposal builds upon a prior NSF HPCC Grand Challenge award (ESC-95-27123) for the highperformance computation of the motion of solid particles in Newtonian and viscoelastic liquids; it aims to use these computations to elucidate fundamental dynamics and solve problems of engineering interest. The Grand Challenge goal was to develop software packages, called particle movers, capabl...

The binding characteristics of substrate and effector ligands to testicular microsomal cytochrome P-450 (17 alpha-hydroxylase/C17-20 lyase) have been investigated by difference spectroscopy. Steroid products and their analogs induce oxygen-mediated damage of microsomal P-450 activities of cultured Leydig cells, whereas testosterone acetate protects P-450 from this damage [1]. Progesterone and 1...

Global climate change mitigation will require the development and diffusion of a large number and variety of new technologies. How will patent protection affect this process? In this paper we first review the evidence on the role of patents in international technology transfer in general, finding that patent protection in a host country encourages technology transfer to that country but that it...