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Journals

Model of Particle Growth in Silane Discharges

August 1, 2000

Author(s)

Alan Gallagher

The growth of silicon particles in the neutral plasma region of pure silane, rf capacitively coupled, steady-state discharges is calculated with a homogenous...

Spectral Simulation With NIST-NIH Desktop Spectrum Analyzer (DTSA): A Critical Tool for Estimating Limits of Detection

August 1, 2000

Author(s)

Dale E. Newbury

X-ray microanalysis often must estimate limits of detection for specific specimen compositions to optimize analytical strategy and to adequately describe the...

Improving the Analytical Accuracy in the Analysis of Particles by Employing Low Voltage Analysis

August 1, 2000

Author(s)

John A. Small, J T. Armstrong

The energy of the electron beam, in conventional electron probe microanalysis, is generally in the range of 15-25 keV which provides the necessary overvoltage...

A Sensitive Denaturing Gradient-Gel Electrophoresis Assay Reveals a High Frequency of Heteroplasmy in Hypervariable Region 1 of the Human mtDNA Control Region

August 1, 2000

Author(s)

L A. Tully, T. J. Parsons, R J. Steighner, M M. Holland, M A. Marino, V L. Prenger

A population study of heteroplasmy in the hypervariable region 1 (HV1) portion of the human Mitochondrial DNA (mtDNA) control region was performed. Blood...

NCWM Publication No. 14, National Type Evaluation Program: Technical Policy Checklists and Test Procedures, 7th Edition

August 1, 2000

Author(s)

Tina G. Butcher, T L. Grimes

This publication (7th edition) contains technical policy, checklists, and test procedures of the National Type Evaluation Progrm (NTEP). The procedures in this...

Advancing Nanoscale Indentation Measurements Toward Quantitative Characterization of Polymer Properties

August 1, 2000

Author(s)

Mark R. VanLandingham, John S. Villarrubia, G F. Meyers, M D. Dineen

The ultimate objective of instrumented indentation testing is to obtain absolute measurements of material properties and behavior. To achieve this goal...

Wind-Induced Peak Bending Moments in Low-Rise Building Frames

August 1, 2000

Author(s)

M Gioffre, Mircea Grigoriu, M Kasperski, Emil Simiu

We present a procedure for estimating peaks of non-Gaussian processes representing fluctuating internal forces induced by wind in low-rise building frames. The...

Cryosalts: Suppression of Ice Formation in Macromolecular Crystallography

August 1, 2000

Author(s)

Kenneth A. Rubinson, Jane E. Ladner, M Tordova, G L. Gilliland

Quality data collection for macromolecular cryocrystallography requires suppressing the formation of crystalline or microcrystalline ice that may result from...

Immobilization of Nucleic Acids at Solid Surfaces: Effect of Oligonucleotide Length on Layer Assembly

August 1, 2000

Author(s)

A B. Steel, R Levicky, T M. Herne, Michael J. Tarlov

This report investigates the effect of DNA length and the presence of an anchoring group on the assembly of pre-synthesized oligonucleotides at a gold surface...

Ferromagnetic Resonance Spectroscopy with a Micromechanical Calorimeter Sensor

August 1, 2000

Author(s)

John M. Moreland, M. Loehndorf, Pavel Kabos, Robert McMichael

We describe a new type of ferromagnetic resonance (FMR) spectroscopy that is based on a calorimeter sensor. We use an atomic force microscopy cantilever coated...

Inductively Coupled Plasmas in Low Global Warming Potential Gases

August 1, 2000

Author(s)

Amanda N. Goyettes, Yicheng Wang, James K. Olthoff

Many high density discharges used in microelectronics fabrication use fluorocarbon gases with coincidentally high global-warming potentials (GWPs). We have...

Dendrimer Templates for the Formation of Gold Nanoclusters

August 1, 2000

Author(s)

Franziska Grohn, Barry J. Bauer, Y A. Akpalu, C L. Jackson, Eric J. Amis

Charged poly(amidoamine) (PAMAM) dendrimers are used to create organic-inorganic hybrid colloids in aqueous solution. The formation of gold colloids upon...

Comparison of Elemental Detection Using Microcalorimetry, SIMS, AES and EDS (SEM, STEM, and TEM)

August 1, 2000

Author(s)

C. B. Vartuli, F. A. Stevie, David A. Wollman, M. Antonell, R. B. Irwin, J. M. McKinley, T L. Shofner, B. M. Purcell, S. A. Anderson, Bobby To

Cu contamination has become a larger concern as more semiconductor fabrication facilities switch from aluminum to Cu interconnects. The resolution limits of...

Comparative of Texture Analysis Techniques for Highly Oriented α-Al₂O₃

August 1, 2000

Author(s)

M M. Seabugh, Mark D. Vaudin, James Cline, G L. Messing

Texture measurements were performed on liquid phase sintered alumina textured by a templated grain growth process. Texture distributions were measured using...

Surface Stability in Liquid-Crystalline Block Copolymers With Semifluorinated Monodendron Side Groups

August 1, 2000

Author(s)

M Xiang, X Li, Christopher K. Ober, K Char, Jan Genzer, E Sivaniah, E K. Kramer, Daniel A. Fischer

Block copolymers with semifluorinated monodendron side groups were synthesized by attachement of a first generation 2-or 3-armed monodendron acid chloride to a...

Magnetic Behavior of Atomically Engineered NiO-Co-Cu-based Giant Magnetoresistance Spin Valves Pb as a Surface Modifier

August 1, 2000

Author(s)

H D. Chopra, E J. Repetski, H J. Brown, P J. Chen, L Swartzendruber, William F. Egelhoff Jr.

The present study illustrates the efficacy of using surface modifiers, or simply surfactants, to alter, modify, or control the nature of interfaces and film...

Theory of Strain Percolation in Metals: Mean Field and Strong Boundary Universality Class

August 1, 2000

Author(s)

R Thomson, Lyle E. Levine, D Stauffer

For the percolation model of strain in a deforming metal proposed earlier, we develop a sum rule and mean field approximation which predict a critical point...

Molecular Orientation of Single and Two-Armed Monodendron Semifluorinated Chains on Soft and Hard Surfaces Studied Using NEXAFS

August 1, 2000

Author(s)

Jan Genzer, E Sivaniah, E K. Kramer, J G. Wang, M Xiang, K Char, Christopher K. Ober, Robert A. Bubeck, Daniel A. Fischer, M Graupe, R Colorado, O E. Shmakova, T R. Lee

Near-edge absorption fine structure (NEXAFS) measurements are used to probe the molecular orientation of semifluorinated (SF) mesogens, -(CH 2)x(CF 2)yF, which...

Neutron Reflectivity Study of Diblock Formation During Reactive Blending Processes

August 1, 2000

Author(s)

Makoto Hayashi, H Grull, A R. Esker, M J. Weber, Li Piin Sung, Sushil K. Satija, Charles C. Han, TT Hashimoto

In a series of neutron reflectivity experiments, we studied the fundamental process of diblock formation during reactive blending processes of an immiscible...

High-Throughput Measurement of Polymer Blend Phase Behavior

August 1, 2000

Author(s)

J C. Meredith, Alamgir Karim, Eric J. Amis

Two-dimensional combinatorial thin film libraries are used to rapidly measure the LCST phase boundary of polystyrene and poly (vinylmethyl ether) blends in...

Morphological Partitioning of Ethylene Defects in Random Propylene-Ethylene Copolymers

August 1, 2000

Author(s)

R G. Alamo, David L. VanderHart, Marc R. Nyden, L Mandelkern

A series of four propylene/ethylene, metallocene-catalyzed copolymer samples, with ethylene mole fractions ranging from 0.8 to 7.5 mol % and melt...

Theory of Four-Wave Mixing of Matter Waves from a Bose-Einstein Condensate

August 1, 2000

Author(s)

M Trippenbach, Y B. Band, Paul S. Julienne

A recent experiment [Deng et al., Nature 398, 218 (1999)] demonstrated the four-wave mixing of matter wavepackets created from a Bose-Einstein condensate. The...

Intercombination and Forbidden Transition Rates in C- and N-Like Ions (O²⁺, F³⁺ and S⁹⁺) Measured at a Heavy-Ion Storage Ring

August 1, 2000

Author(s)

E Trabert, A G. Calamai, John D. Gillaspy, G Gwinner, X Tordoir, A Wolf

Rates of an intercombination transition and of several electric-dipole forbidden transitions between the levels of the ground state in C-like ions of O and F...

Photoelectron Spectroscopic Determination of the Energy Bandwidths of High-Order Harmonics (7th-55th) Produced by an Ultrafast Laser in Neon

August 1, 2000

Author(s)

L Nugent-Glandorf, M Scheer, M Krishnamurthy, J W. Odom, S R. Leone

The energy bandwidths of high-order harmonics of a Ti:sapphire ultrafast laser are extracted from electron kinetic-energy measurements of the photoionization of...

Stable ⁸⁵Rb Bose-Einstein Condensates With Widely Tunable Interactions

August 1, 2000

Author(s)

S L. Cornish, N R. Claussen, J L. Roberts, Eric A. Cornell, C E. Wieman

Bose-Einstein condensation has been achieved in a magnetically trapped sample of 85Rb atoms. Long-lived condensates of up to 10 4 atoms have been produced by...

Accurate Transition Rates for the 5p-5s Transitions in Kr I

August 1, 2000

Author(s)

Krzysztof Dzierzega, U Volz, Gillian Nave, Ulf Griesmann

Branching fractions were measured for electric dipole transitions for the 5p upper levels to the 5s levels in neutral Krypton atoms. The measurements were made...

Bovine Retinal Nucleoside Diphosphate Kinase: Biochemistry and Molecular Cloning

August 1, 2000

Author(s)

N G. Abdulaev, D Kakuev, K D. Ridge

Signal transduction in vertebrate photoreceptor cells begins with absorption of light by the visual pigment rhodopsin and culminates in the closure of ion...

Effects of Interaction Potential on Elastic-Electron-Scattering Parameters in Surface-Sensitive Electron Spectroscopies

August 1, 2000

Author(s)

Aleksander Jablonski, Cedric J. Powell

The interaction potential for elastic scattering of electrons by atoms influences the magnitudes of calculated elastic-scattering cross sections. We have...

Silicon Oxynitride Film Thickness Measurements Using HRTEM and Grazing Incidence X-Ray Photoelectron Spectroscopy (GIXPS)

August 1, 2000

Author(s)

J H. Scott, E Landree, Terrence J. Jach, Eric S. Windsor

The ability to accurately and precisely measure the thickness of ultrathin (∝ 3nm) dielectric films, used as gate dielectrics in integrated circuits, is...

Function-to-Form Mapping: Model, Representation and Applications in Design Synthesis

August 1, 2000

Author(s)

Sudarsan Rachuri

Design of a new artifact begins with incomplete knowledge about the final product and the design evolves as it progresses from the conceptual design stage to a...

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