Progress in Dye-based Optical Disk of CD-R and DVD-R

CD/DVD Copy Protection

Working Paper Alfred P. Sloan School of Management Monitoring Progress in R&d Communities Monitoring Progress in R&d Communities Monitoring Progress in R&d Communities

This paper discusses the use of electronic bibliographic and patent databases as a source of data for monitoring progress in R&D communities. Specifically, the databases are used to access information regarding who the researchers are, what they are working on, who the are working with, where they are working and when. Given this information certain structural and behavioral characteristics of ...

R-parts in hyperrings

In this article, first we generalize the concept of complete parts in hyperrings by introducing the concept R-parts in hyperrings and then we study R-closures in hyperrings. Finally we characterize R-closures in hyperfields.

Progress in Absorber R&d 2: Windows *

A program is underway to develop liquid-hydrogen energy absorbers for ionization cooling of muon-beam transverse emittance. Minimization of multiple-scattering-induced beam heating requires thin windows. The first window prototype has been destructively tested, validating the finite-element-analysis model and the design approach.

On the R and R, Ratios at the Five-Loop Level of Perturbative &CD*

We study perturbative QCD at the five-loop level. In particular we consider R = ctot( eSe+ hadrons)/a( e+e+ p+p-) and R, = I’(7 + v + hadrons)/I’(r + evv). We use our method to estimate the five-loop coefficients. As a result, we obtain cys(Mz) = 0.1186(11) and a,(34 GeV) = 0.1396(16), which are accurate at the 1% level. We also find R = 3.8350(18) which is consistent with R, and is accurate to...