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Journals

Instrumental Aspects of X-Ray Microbeams in the Range Above 1 KeV

January 1, 1999

Author(s)

P Dhez, P Chevallier, Thomas B. Lucatorto, Charles Tarrio

Non-Self-Similar Modes of Vibration of a Bose-Einstein Condensate

January 1, 1999

Author(s)

M Brewczyk, Charles W. Clark, M Lewenstein, K Rzazewski

Near-Field Scanning Optical Microscopy Incorporating Raman Scattering for Vibrational Mode Contrast

January 1, 1999

Author(s)

C E. Dentinger, Stephan J. Stranick, Richard R. Cavanagh, Lee J. Richter, D B. Chase

Near-field scanning optical microscopy offers the ability to combine a broad range of spectral contrast features with spatial resolution that is an order of...

Warm-Hip Compaction of Attrition-Milled Iron Alloy Powders

January 1, 1999

Author(s)

J C. Rawers, Frank S. Biancaniello, Rodney D. Jiggetts, Richard J. Fields, Maureen E. Williams

Warm-HIP (Hot-Isostatic-Pressure) compaction of attrition-milled iron alloy powders resulted in production of high strength, fully-dense compacts of...

Thermal Expansion of Morphologically Textured Short-Fiber Composites

January 1, 1999

Author(s)

Martin Dunn, H M. Ledbetter, Z Li

We studied, both experimentally and theoretically, the thermoelastic response of short-fiber composites with a preferred orientation of the short fibers, i.e...

Assessment of Particle Size Measurement Techniques and Procedures: I. Identification and Characterization of a Model Powder System

January 1, 1999

Author(s)

Ajitkumar Jillavenkatesa, Vincent A. Hackley, G Y. Onoda

Particle size distribution of a powder system has been observed to be dependent upon the instrument and technique used for analysis. Often, different...

Frustrated Coalescence in a Chemically Reactive Polymer Blend Film

January 1, 1999

Author(s)

Alamgir Karim, Jack F. Douglas, Sushil K. Satija, Charles C. Han, R J. Goyette

Microstructural Characterization for Polymer Composites

January 1, 1999

Author(s)

Richard~undefined~undefined~undefined~undefined~undefined Parnas, Donald L. Hunston, Joy Dunkers, Gale A. Holmes

Characterization of composite microstructure is a crucial area since such features plays a major role in processability, performance, damage tolerance, and...

Fluctuation Effects in Steric Reaction-Diffusion Systems

January 1, 1999

Author(s)

Z Konkoli, H Johannesson, B P. Lee

We propose a simple model for reaction-diffusion systems with orientational constraints on the reactivity of particles (steric system). The corresponding master...

Laser-Pulse Technique for Measuring the Thermal Diffusivity of Substrate-Supported Polymer Films

January 1, 1999

Author(s)

Erik K. Hobbie, A S. DeReggi

Dynamic Entropy as a Measure of Caging and Persistent Particle Motion in Supercooled Liquids

January 1, 1999

Author(s)

P Allegrini, Jack F. Douglas, S C. Glotzer

Long-Term Environmental Fatigue of Pultruded Glass-Fiber- Reinforced Composites Under Flexural Loading

January 1, 1999

Author(s)

Kate Liao, Carl R. Schultesiz, Donald L. Hunston

Enhanced Polymer Segment Exchange Kinetics Due to an Applied Shear Field

January 1, 1999

Author(s)

Eric K. Lin, R Kolb, Sushil K. Satija, Wen-Li Wu

Effects of Composition and Reactivity on the Reaction Kinetics of Dimethacrylate Dimethacrylate Copolymerizations

January 1, 1999

Author(s)

L G. Lovell, J W. Stansbury, D C. Syrpes, Christopher N. Bowman

The Role of Solid State C-13 NMR Spectroscopy in Studies of the Nature of Native Celluloses

January 1, 1999

Author(s)

R H. Atalla, David L. VanderHart

Model for the Viscosity of Particle Dispersions

January 1, 1999

Author(s)

J Bicerano, Jack F. Douglas, D A. Brune

Visualization and Quantification of Forced in-Plane Flow Through Deformed Porous Media

January 1, 1999

Author(s)

H L. Friedman, R A. Johnson, V Gusev, A V. Neimark, D Buvel, D R. Salem, Richard~undefined~undefined~undefined~undefined~undefined Parnas

Effects of Environmental Aging on the Properties of Pultruded GFRP

January 1, 1999

Author(s)

Kate Liao, Carl R. Schultesiz, Donald L. Hunston

Pultruded glass-fiber-reinforced vinyl ester matrix composite coupons were subjected to environmental aging in order to study their durability since such...

Effect of Ordering on Spinodal Decomposition of Liquid-Crystal/Polymer Mixtures

January 1, 1999

Author(s)

A M. Lapena, S C. Glotzer, Stephen A. Langer, A J. Liu

Partially phase-separated liquid-crystal/polymer dispersions display highly fibrillar domain morphologies that are dramatically different from the typical...

Investigation of Nonlinear Material Behavior Using Simultaneous Measurements of Volume Recovery and Physical Aging

January 1, 1999

Author(s)

Carl R. Schultesiz, G B. McKenna

At temperatures below the glass transition, amorphous polymers evolve slowly toward thermodynamic equilibrium. Some experiments have suggested that different...

Dynamically Induced Loss and Its Implications on Temperature Scans of Relaxation Processes

January 1, 1999

Author(s)

Chad R. Snyder, F I. Mopsik

It is demonstrated that a purely real quantity that changes as a function of time will show a dynamically induced loss (DIL) that is not present under steady...

In Line Study of Droplet Deformation in Polymer Blends in Channel Flow

January 1, 1999

Author(s)

Kalman D. Migler, Erik K. Hobbie, F Qiao

Arrhenius-Type Temperature Dependence of the Segmental Relaxation Below T-G

January 1, 1999

Author(s)

P A. O'Connell, G B. McKenna

A precision capacitance cell for measurement of thin film out-of-plane expansion. I. Thermal expansion

January 1, 1999

Author(s)

Chad R. Snyder, F I. Mopsik

The Rotational Spectrum of Ar-SiH₄ and Ar--SiD₄

January 1, 1999

Author(s)

Y Kawashima, R D. Suenram, Gerald T. Fraser, Francis J. Lovas, Katsuya Hirota

Microwave spectra of Ar-- 28SiH 4, Ar-- 29SiH 4, Ar-- 30SiH 4, and Ar-- 28SiD 4 have been recorded using a pulsed-molecular-beam Fourier-transform microwave...

Trapping and Cooling of Potassium Isotopes in a Double-Magneto-Optical-Trap Apparatus

January 1, 1999

Author(s)

M Prevedelli, F S. Cataliotti, Eric A. Cornell, J R. Ensher, C Fort, L Ricci, G M. Tino, M Inguscio

We report on teh efficient operation of a double-magneto-optical-trap (MOT) apparatus for potassium isopes. Mechanisms for the cooling and the transfer between...

Experiments and Theory in Cold and Ultracold Collisions

January 1, 1999

Author(s)

J Weiner, V S. Bagnato, S Zilio, Paul S. Julienne

The authors review progress in understanding the nature of atomic collisions occurring at temperatures ranging from the millidegrees Kelvin to the nanodegrees...

Thermodynamics of Silicon Nitride. I. Standard Molar Enthalpy of Formation Δ}_fH_m^o at the Temperature 298.15K of α-Si₃N₄ and β-Si₃N₄

January 1, 1999

Author(s)

P A. O'Hare, I. Tomaszkiewicz, C M. Beck, H. J. Seifert

Fluorine bomb calorimetric measurements of the massic energy of the reaction: Si 3N 4 (cr, α- or β-) + 6F 2(g) = 3SiF 4(g) + 2N 2(g) have shown that, within the...

Analysis of Mass Flow Rates and Energy Flow Rates in an Orifice Pulse Tube Refrigerator

January 1, 1999

Author(s)

F Kuriyama, Ray Radebaugh

The curves of mass flow rates and temperatures as a function of time have a different shape from those for pressure in an orifice pulse tibe refrigerator. The...

Enumeration of Contact Geometries for Part Registration in Design of Tactile Sensing Fixtures

January 1, 1999

Author(s)

Walter W. Nederbragt, Bahram Ravani

This paper uses group theory for enumeration of contacts between geometric elements necessary for part registration and referencing in robotics. The results...

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