5,232 research outputs found
Hyperbolic cone-manifolds, short geodesics, and Schwarzian derivatives
Given a geometrically finite hyperbolic cone-manifold, with the cone-singularity sufficiently short, we construct a one-parameter family of cone-manifolds decreasing the cone-angle to zero. We also control the geometry of this one-parameter family via the Schwarzian derivative of the projective boundary and the length of closed geodesics
The space of Kleinian punctured torus groups is not locally connected
We show that the space of Kleinian punctured torus groups is not locally
connected
Introducing Marijuana Law into the Legal Writing Curriculum
Interest in marijuana law continues to grow, due in large part to the complicated and rapidly evolving landscape of marijuana laws in the United States. Nearly every day, newspapers report on new or proposed legislation and the legal controversies that have arisen with regard to this evolving landscape. There are now several marijuana-law blogs on the Internet, Congress is considering sweeping legislation that would essentially grant significant deference to the individual states, and public opinion continues to move in favor of increased legalization. For the last two years, Newsweek magazine has published special editions devoted exclusively to marijuana law and the movement toward legalization, with cover captions “WEED NATION,” and featuring a large red, white, and blue cannabis leaf. In light of this growing interest in marijuana law, we propose that the topic is ripe for the legal writing classroom. Not only is marijuana law a rapidly evolving area of law, and therefore a fertile source of new legal issues, it also is an area of significant interest for many students, and it raises many fascinating legal issues—civil, criminal, and constitutional. This article therefore proposes that legal writing professors consider incorporating marijuana law issues into their first-year courses, and it offers some ideas for how they might create marijuana-related legal writing problems
Introducing Marijuana Law into the Legal Writing Curriculum
Interest in marijuana law continues to grow, due in large part to the complicated and rapidly evolving landscape of marijuana laws in the United States. Nearly every day, newspapers report on new or proposed legislation and the legal controversies that have arisen with regard to this evolving landscape. There are now several marijuana-law blogs on the Internet, Congress is considering sweeping legislation that would essentially grant significant deference to the individual states, and public opinion continues to move in favor of increased legalization. For the last two years, Newsweek magazine has published special editions devoted exclusively to marijuana law and the movement toward legalization, with cover captions “WEED NATION,” and featuring a large red, white, and blue cannabis leaf. In light of this growing interest in marijuana law, we propose that the topic is ripe for the legal writing classroom. Not only is marijuana law a rapidly evolving area of law, and therefore a fertile source of new legal issues, it also is an area of significant interest for many students, and it raises many fascinating legal issues—civil, criminal, and constitutional. This article therefore proposes that legal writing professors consider incorporating marijuana law issues into their first-year courses, and it offers some ideas for how they might create marijuana-related legal writing problems
Plasmatron Reformation of Renewable Fuels
The characteristics of plasmatron reformers for the generation of hydrogen rich gas using renewable fuels is discussed. Biodiesel and ethanol have been investigated. Operating as a function of the air/fuel ratio is evaluated, as well as the impact of the plasma. I
Experimental Investigation of Plasma Assisted Reforming of Propane
Plasmatron fuel converters have been investigated for the conversion of a wide range of fuels. This paper is one of a series of paper investigating the performance of plasmatron reformers. In this paper a systematic experimental investigation is carried out of the reformation of propane in a plasmatron fuel reformer. The effect upon reformation of flow rate distribution and electrical power level are investigated for a given geometry that has been thoroughly studied with a similar gaseous fuel, methane. A limited set of startup experiments with propane are discussed 1
Experimental Investigation of Plasma Assisted Reforming of Methane I: Steady State Operation
Plasmatron fuel converters have been investigated for the conversion of a wide range of fuels. This paper is one of a series of paper investigating the performance of plasmatron methane reformers. In this paper a systematic experimental investigation is carried out of the reformation of methane in a plasmatron fuel reformer at steady state conditions. The effect upon reformation of flow rate distribution and electrical power level are investigated for a given geometry that has been thoroughly studied with a similar gaseous fuel, propane. Startup issues are investigated in an accompanying paper. 1
Quantum and classical correlations in waveguide lattices
We study quantum and classical Hanbury Brown-Twiss correlations in waveguide
lattices. We develop a theory for the propagation of photon pairs in the
lattice, predicting the emergence of nontrivial quantum interferences unique to
lattice systems. Experimentally, we observe the classical counterpart of these
interferences using intensity correlation measurements. We discuss the
correspondence between the classical and quantum correlations, and consider
path-entangled input states which do not have a classical analogue. Our results
demonstrate that waveguide lattices can be used as a robust and highly
controllable tool for manipulating quantum states, and offer new ways of
studying the quantum properties of light.Comment: Comments are welcom
Quantum walks of correlated particles
Quantum walks of correlated particles offer the possibility to study
large-scale quantum interference, simulate biological, chemical and physical
systems, and a route to universal quantum computation. Here we demonstrate
quantum walks of two identical photons in an array of 21 continuously
evanescently-coupled waveguides in a SiOxNy chip. We observe quantum
correlations, violating a classical limit by 76 standard deviations, and find
that they depend critically on the input state of the quantum walk. These
results open the way to a powerful approach to quantum walks using correlated
particles to encode information in an exponentially larger state space
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