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Search Publications

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Displaying 2826 - 2850 of 9852

A versatile bilayer resist for laser lithography at 405 nm on glass substrates

October 23, 2013
Author(s)
Quandou (. Wang, Ulf Griesmann
We describe a simple bilayer photoresist that is particularly well suited for laser lithography at an exposure wavelength of 405 nm on glass substrates, which is often used for the fabrication of binary diffractive optics and computer generated holograms

Methods for Quantifying and Characterizing Errors in Pixel-Based 3D Rendering

July 1, 2008
Author(s)
John G. Hagedorn, Judith E. Terrill, Adele P. Peskin, James J. Filliben
We present methods for measuring errors in the rendering of three-dimensional points, line segments, and polygons in pixel-based computer graphics systems. We present error metrics for each of these three cases. These methods are applied to rendering with

Representing Designs With Logic Formulations of Spatial Relations

July 1, 1996
Author(s)
Scott Chase
A new method of describing designs by combining the paradigms of shape algebras and predicate logic representations is proposed. Representing shapes and spatial relations in first order predicated logic provides a natural, intuitive method of developing

Active protection of a superconducting qubit with an interferometric Josephson isolator

July 17, 2019
Author(s)
Baleegh Abdo, Nicholas T. Bronn, Oblesh Jinka, Salvatore B. Olivadese, Antonio D. Corcoles, Vivekananda P. Adiga, Markus Brink, Russell Lake, Xian Wu, David P. Pappas, Jerry M. Chow
… microwave devices play critical roles in high-fidelity, quantum-nondemolition (QND) measurement schemes. They impose … unidirectional routing of readout signals and protect the quantum systems from unwanted noise originated by the output … quantum information, amplifiers, circulators, isolators, …

Initial Model for Fires in the World Trade Center Towers

May 1, 2002
Author(s)
Ronald G. Rehm, William M. Pitts, D D. Evans, Kuldeep R. Prasad, Kevin B. McGrattan, Glenn P. Forney
Mathematical models have been used to provide an initial estimate the behavior of the fires in the twin towers of the World Trade Center (WTC) on September 11, 2001. Available photographs and videos have provided an initial estimate of the exterior damage

Non-Uniqueness in Dual-Energy CT with Beam Hardening

September 13, 2017
Author(s)
Zachary H. Levine
Purpose: The goal is to determine whether dual-energy computed tomography (CT) leads to a unique reconstruction into two basis materials. Methods and Materials: The beam hardening equation is simplified to the single voxel case. The simplified equation is

Influence of Silica Fume on Diffusivity in Cement-Based Materials. I. Experimental and Computer Modeling Studies on Cement Pastes

June 1, 2000
Author(s)
Dale P. Bentz, O M. Jensen, A M. Coats, Frederik P. Glasser
… Experimental and computer modeling studies are applied to determining the … is significantly greater than that predicted from the computer models, suggesting that at these very high dosages, … Diffusivity in Cement-Based Materials. I. Experimental and Computer Modeling Studies on Cement Pastes …

A Dimensional Inspection Planning Activity Model

January 1, 1994
Author(s)
Shaw C. Feng
This paper describes an activity model for dimensional inspection planning that bridges the gap between product design and the dimensional measurement of manufactured products. Functionally, this model specifies requirements for developing a part of a

Manufacturing Data Validation Through Simulation

October 1, 2003
Author(s)
Guodong Shao, Yung-Tsun Lee, Charles R. McLean
In order to ensure that the process plan and numerical control (NC) programs are complete and correct before jobs are released to the shop floor, manufacturing industry needs a validation system that has visualization and analysis capabilities. A prototype

Boussinesq Algorithm for Buoyant Convection in Polygonal Domains.

April 1, 1992
Author(s)
Kevin B. McGrattan, Ronald G. Rehm, Hai C. Tang, Howard R. Baum
A 2-D Boussinesq model describing heat-driven buoyant convection in a polygonal enclosure is presented. The hydrodynamics is based on the time-dependent Navier-Stokes equations with constant viscosity and thermal conductivity; no turbulence model or other

Prototype Methodology for Fire Hazard Analysis

February 1, 1990
Author(s)
Richard D. Peacock, Richard W. Bukowski
The first version of a method for predicting the hazards to occupants involved in a building fire is described. The method and available computer software, called HAZARD I, can predict the time varying environment within a building resulting from a

A Decomposition-Based Approach to Layered Manufacturing

January 1, 2001
Author(s)
R Janardan, I Ilinkin, J Schwerdt, Miles E. Smid, J J. Majhi, Ram D. Sriram
This paper introduces a new approach for improving the performance and versatility of Layered Manufacturing (LM), which is an emerging technology that makes it possible to build physical prototypes of 3D parts directly from their CAD models using a

Proof-of-Principle Experiment for Testing Strong-Field Quantum Electrodynamics with Exotic Atoms: High Precision X-Ray Spectroscopy of Muonic Neon

April 27, 2023
Author(s)
Douglas Bennett, W.Bertrand (Randy) Doriese, Malcolm Durkin, Joseph Fowler, Johnathon Gard, Gene C. Hilton, Kelsey Morgan, Galen O'Neil, Carl D. Reintsema, Dan Schmidt, Daniel Swetz, Joel Ullom, Takuma Okumura
… To test the bound-state quantum electrodynamics (BSQED), we have performed high … Proof-of-Principle Experiment for Testing Strong-Field Quantum Electrodynamics with Exotic Atoms: High Precision …

Mathematical Software: Past, Present, and Future

March 1, 2002
Author(s)
Ronald F. Boisvert
This paper provides some reflections on the field of mathematical software on the occasion of John Rice's 65th birthday. We describe some of the common themes of research in this field and recall some significant events in its evolution. Finally, we raise
Displaying 2826 - 2850 of 9852
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