Energy and precious fuels requirements of fuel alcohol production. Volume 4: Appendices G and H, methanol from coal

Coal mine location, mining technology, energy consumption in mining, coal transport, and potential availability of coal are discussed. Methanol from coal is also discussed

Elliptic flow of the dilute Fermi gas: From kinetics to hydrodynamics

We use the Boltzmann equation in the relaxation time approximation to study the expansion of a dilute Fermi gas at unitarity. We focus, in particular, on the approach to the hydrodynamic limit. Our main finding are: i) In the regime that has been studied experimentally hydrodynamic effects beyond the Navier-Stokes approximation are small, ii) mean field corrections to the Boltzmann equation are not important, iii) experimental data imply that freezeout occurs very late, that means that the relaxation time remains smaller than the expansion time during the entire evolution of the system, iv) the experimental results also imply that the bulk viscosity is significantly smaller than the shear viscosity of the system.Comment: 18 pages, 6 figure

Geoneutrinos in Borexino

This paper describes the Borexino detector and the high-radiopurity studies and tests that are integral part of the Borexino technology and development. The application of Borexino to the detection and studies of geoneutrinos is discussed.Comment: Conference: Neutrino Geophysics Honolulu, Hawaii December 14-16, 200

Faculty Writing Retreats in the Library: Creative Approaches to Relationship Building

Have you ever thought, “If I had some uninterrupted time to write, I could get so much done!”? At William & Mary Libraries, we often feel this way, and we hear from our teaching faculty colleagues that they feel the same. But can this common challenge present a unique opportunity? Can we, as a library, fill this need, and in turn, accomplish our goals of building relationships and connections with faculty? We determined that we can. As we consider time-intensive library events, partnerships, and outreach, we have learned that focusing on high-impact relationship-building opportunities is the best way to spend our time

Comparisons of Precision of Fit Between Cast and Computer Numeric Controlled Milled Titanium Implant Frameworks for the Edentulous Mandible

INTRODUCTION: Titanium frameworks have for the last decade been discussed as an option to conventional gold alloy castings in implant dentistry. So far no reports have been made to show milled titanium frameworks and their difference in precision compared to conventional castings, and how laboratory handling andfusing of veneers to the titanium frames affect the precision of fit. PURPOSE: To investigate and compare the precision of fabrication in repeatedly produced Computer Numeric Controlled milled frameworks with conventional castings, and to analyze the distortion from application of different veneering materials (porcelain and acrylic resin veneers). MATERIAL AND METHODS: Twenty identical titanium frameworks were fabricated by means of a Computer Numeric Controlled milling technique for one and the same master model. Five conventional frameworks were cast as a control group to the same model. The frames were measured with regard to fit in a coordinate measuring machine linked to a computer. Measurements were made during different stages of handling of the titanium framework, and after veneering materials had been applied. RESULTS: The Computer Numeric Controlled frameworks showed a statistically (p0.05) affect the fit of the titanium frameworks. CONCLUSION: It is possible to fabricate implant supported titanium frameworks by means of the present Computer Numeric Controlled technique with very high precision and repeatability

Comparisons of Precision of Fit Between Cast and Computer Numeric Controlled Milled Titanium Implant Frameworks for the Edentulous Mandible

INTRODUCTION: Titanium frameworks have for the last decade been discussed as an option to conventional gold alloy castings in implant dentistry. So far no reports have been made to show milled titanium frameworks and their difference in precision compared to conventional castings, and how laboratory handling andfusing of veneers to the titanium frames affect the precision of fit. PURPOSE: To investigate and compare the precision of fabrication in repeatedly produced Computer Numeric Controlled milled frameworks with conventional castings, and to analyze the distortion from application of different veneering materials (porcelain and acrylic resin veneers). MATERIAL AND METHODS: Twenty identical titanium frameworks were fabricated by means of a Computer Numeric Controlled milling technique for one and the same master model. Five conventional frameworks were cast as a control group to the same model. The frames were measured with regard to fit in a coordinate measuring machine linked to a computer. Measurements were made during different stages of handling of the titanium framework, and after veneering materials had been applied. RESULTS: The Computer Numeric Controlled frameworks showed a statistically (p0.05) affect the fit of the titanium frameworks. CONCLUSION: It is possible to fabricate implant supported titanium frameworks by means of the present Computer Numeric Controlled technique with very high precision and repeatability