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Displaying 43351 - 43375 of 73778

Material Model for Strain-Induced Surface Roughening of Sheet Metal

May 1, 2002
Author(s)
Y Shim, Mark R. Stoudt, Lyle E. Levine, Stephen W. Banovic, Richard J. Fields
A generic model for strain-induced surface roughening has been derived from a statistical analysis of experimental data from aluminum alloys. The model predicts the surface roughening in sheet metal as a function of strain and grain size. Our analyses

Mechanism of Fillet Lifting in Sn-Bi Alloys

May 1, 2002
Author(s)
William J. Boettinger, C A. Handwerker, B Newbury, TG Y. Pan, J M. Nicholson
The probability of fillet lifting in through-hole solder joints was determined for a series of seven binary Sn-Bi solders with compositions between 2.6 and 65 mass percent Bi. A 20 pin ceramic dual inline package was soldered to printed wiring boards with

Multifilmamentary Nb 3 Sn wires reacted in hydrogen gas

May 1, 2002
Author(s)
M Takayasu, R G. Ballinger, Ronald B. Goldfarb, A. A. Squitieri, P. J. Lee, David C. Larbalestier
Reaction of Nb 3Sn wires in an Icology 908 conduit in the presence of oxygen can decrease the conduit's fracture toughness. This may be avoided by reacting in a reducing atmosphere of 5% hydrogen-95% argon. The effects of the hydrogen reaction on the

Nanotechnology in Early Detection of Cancer

May 1, 2002
Author(s)
P R. Srinivas, Peter E. Barker, S Srivastava
Nanotechnology is defined as the creation of functional materials, devices and systems through control of matter at the scale of 1 to 100 nanometers, and exploitation of novel properties and phenomena at the same scale.Advances in nanotechnolgy are thought

On the Gibbs Adsorption Equation and Diffuse Interface Models

May 1, 2002
Author(s)
Geoffrey B. McFadden, A A. Wheeler
In this paper we discuss some applications of the classical Gibbs adsorption equations to specific diffuse interface models that are based on conserved and non-conserved order parameters. Such models are natural examples of the general methodology

Performance and Characterization of Building Integrated Photovoltaic Panels

May 1, 2002
Author(s)
Arthur H. Fanney, Brian P. Dougherty, Mark W. Davis
Buildings consume more than two-thirds of the electricity in the United States. The incorporation of photovoltaics into the buildings, referred to as building integrated photovoltaics (BIPV), offers an aesthetically pleasing means of displacing centrally

Phase Field Modeling Applied to the Double Layer

May 1, 2002
Author(s)
Jonathan E. Guyer, William J. Boettinger, James A. Warren, Geoffrey B. McFadden
We present the first application of phase field modeling to electrochemistry. A free energy functional that includes the electrostatic effect of charged particles leads to rich interactions between concentration, electrostatic potential, and phase

Preliminary Report on the Biocompatibility of a Moldable, Resorbable, Composite Bone Graft Consisting of Calcium Phosphate Cement and Poly (Lactide-Co-Glycolide) Microspheres

May 1, 2002
Author(s)
Carl Simon Jr., C A. Khatri, Scott Wight, Francis W. Wang
We have assessed the biocompatibility of a new composite bone graft consisting of calcium phosphate cement (CPC) and poly(lactide-co-glycolide) (PLGA) microspheres (175-350 ?m) using cell culture techniques. CPC powder is mixed with PLGA microspheres and

Probing Surface and Bulk Chemistry in Resist Films Using Near Edge X-Ray Absorption Fine Structure

May 1, 2002
Author(s)
Joseph~undefined~undefined~undefined~undefined~undefined Lenhart, Ronald L. Jones, Eric K. Lin, Christopher Soles, Wen-Li Wu, Daniel A. Fischer, S Sambasivan, D L. Goldfarb, M Angelopoulos
Control of the shape, critical dimension (CD), and roughness is critical for the fabrication of sub 100 nm features, where the CD and roughness budget are approaching the molecular dimension of the resist polymers. One focus of our research is identifying

Reduction of Cobalt and Iron Corroles and Catalyzed Reduction of CO 2

May 1, 2002
Author(s)
J Grodkowski, Pedatsur Neta, E Fujita, A Mahammed, L Simkhovich, Z Gross
The role of cobalt and iron corroles in catalytic CO 2 reduction has been studied. Chemical, electrochemical, and photochemical reductions of the stable metal corroles Ph 3PCo III(tpfc) (tpfc = 5,10,15-tris(pentafluorophenyl)corrole), ClFe^IV^(tpfc), and

Regenerative Stability Analysis of Highly Interrupted Machining

May 1, 2002
Author(s)
Matthew A. Davies, Jon R. Pratt, Brian S. Dutterer, Timothy J. Burns
We discuss theoretical and experimental work that supports the use of very low radia immersion in the high-speed milling of difficult-to-machine materials, such as titanium alloys. Our theory is based upon modeling the cutting process by a kicked harmonic

RNA and RNA-Protein Complexes as Targets for Therapeutic Intervention

May 1, 2002
Author(s)
E S. DeJong, B. Luy, John Marino
Today, the majority of pharmaceuticals developed to treat cancers and viral/bacterial infections target cellular, bacterial or viral proteins known to be associated with a given pathology. Although proteins are the focus of most current drug discovery
Displaying 43351 - 43375 of 73778
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