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Conferences

Time-Resolved Ultrasonic Body Wave Measurements of Material Anisotropy Using a Lensless Line-Focus Transducer

November 1, 1998

Author(s)

Nelson N. Hsu, D Xiang, Gerald V. Blessing

For plate-like sample geometries, a line-focus transducer can be used to detect back-reflected echoes through the thickness of the sample. The interaction of...

Specific NIST Projects in Support of the NIJ Concealed Weapon Detection and Imaging Program

November 1, 1998

Author(s)

Nicholas G. Paulter Jr.

The Electricity Division of the National Institute of Standards and Technology is developing revised performance standards for hand-held (HH) and walk-through...

Formal Specification, Verification, and Automatic Test Generation of ATM Routing Protocol: PNNI

November 1, 1998

Author(s)

David E. Cypher, Dongjin Lee, M Martin-Villalba, C A. Prins, David H. Su

This paper presents an effort to use formal tools to model, validate,and generate test suites for the ATM network routing protocol calledPrivate Network-Network...

The Formation of Supermolecular Polycaprolactone (PCL) Spherulites in Polystyrene-Polybutadiene-PCL (PS-b-PB-b-PCL) Semicrystalline Block Copolymer

November 1, 1998

Author(s)

G Kim, C L. Jackson, V Balsamo, M Libera, R Stadler, Charles C. Han

The morphological behavior of (PS)0.35(PB)0.15(PCL)0.5 semicrystalline block copolymers as a function of annealing conditions are discussed. For this study, the...

Theory of Optical Absorption with Electron-Hole Attraction

November 1, 1998

Author(s)

Eric L. Shirley, L Benedict, Robert B. Bohn

This work presents calculations of the optical absorption spectra of semiconductors and insulators. The background and underlying physics are discussed, and the...

Thin Film Growth of Titanium and Titanium Nitride Via Gas-Phase Reaction of Sodium Vapor With Titanium Tetrachloride

November 1, 1998

Author(s)

Jay H. Hendricks, M I. Aquino-Class, Michael R. Zachariah

In this paper, we present a process which has the benefits of operating at lower temperatures than conventional CVD, that uses low cost precursors, and produces...

Properties of Process Gases Determined Accurately With Acoustic Techniques

November 1, 1998

Author(s)

John J. Hurly

Our laboratory has developed a highly precise, automated apparatus for measuring sound speeds, viscosity, and thermal conductivity in hazardous and/or corrosive...

New Electric Field Expressions for EMC Testing in a Reverberation Chamber

November 1, 1998

Author(s)

Galen H. Koepke, John M. Ladbury

Using Model Checking to Generate Tests From Specifications

November 1, 1998

Author(s)

P E. Ammann, Paul E. Black, William J. Majurski

We apply a model checker to the problem of test generation using a new application of mutation analysis. We define syntactic operators, each of which produces a...

Amorphous Alloys Containing Cobalt for Orthopaedic Applications

November 1, 1998

Author(s)

John A. Tesk, C E. Johnson, Drago Skrtic, Ming S. Tung, Stephen M. Hsu

Amorphous metal alloys have properties and structures unlike those of theircrystalline counterparts. For example, a multiphase crystalline structure may exhibit...

Improving Pitch and Step Height Measurements Using the Calibrated Atomic Force Microscope

November 1, 1998

Author(s)

R Koning, Ronald G. Dixson, Joseph Fu, V W. Tsai

No abstract.

Deep Ultraviolet Laser Metrology for Semiconductor Photolithography

November 1, 1998

Author(s)

Marla L. Dowell, Christopher L. Cromer, Rodney Leonhardt, Thomas Scott

Role-Based Access Control for the Web

October 29, 1998

Author(s)

John Barkley, David R. Kuhn, Lynne S. Rosenthal, Mark Skall, Anthony V. Cincotta

Establishing and maintaining a presence on the World Wide Web (Web), once a sideline for U.S. industry, has become a key strategic aspect of marketing and sales...

Fire-Emulator Detector-Evaluation

October 28, 1998

Author(s)

Artur A. Chernovsky, William L. Grosshandler, Thomas G. Cleary, Michael D. Anderson

The performance of a fire detection system is determined as much by its ability to recognize correctly the non-fire state as to sense the presence of a real...

Managing Role/Permission Relationships Using Object Access Types

October 23, 1998

Author(s)

John Barkley, Anthony V. Cincotta

The role metaphor in Role Based Access Control (RBAC) is particularly powerful in its ability to express access policy in terms of the way in which...

Role Based Access Control on MLS Systems Without Kernel Changes

October 23, 1998

Author(s)

David R. Kuhn

Role based access control (RBAC) is attracting increasing attention as a security mechanism for both commercial and many military systems. This paper shows how...

Control of Condensed Phase Molecular Excitation With Intense Infrared and Visible Chipped Pulses

October 21, 1998

Author(s)

V D. Kleiman, Edwin J. Heilweil, D McMorrow, Joseph S. Melinger

Chirped ultrafast laser pulses in the mid-Infrared and visible are used to experimentally control population transfer in condensed-phase systems and molecules.

A Wavelength Availability Restriction Protocol for Improved WDM Network Access

October 13, 1998

Author(s)

M R. Frey, T D. Ndousse, David H. Su

Future broadband communication networks are intended to accommodate dissimilar traffic classes with different negotiated qualities of service. A family of...

Inheritance Properties of Role Hierarchies

October 9, 1998

Author(s)

Wayne Jansen

Role Based Access Control (RBAC) refers to a class of security mechanisms that mediate access to resources through organizational identities called roles. A...

Role-Based Access Control Features in Commercial Database Management Systems

October 9, 1998

Author(s)

Ramaswamy Chandramouli, R. Sandhu

This paper analyzes and compares role-based access control (RBAC) features supported in the most recent versions of three popular commercial database management...

WebMetrics: A Methodology for Producing Usable Web Sites

October 6, 1998

Author(s)

Jean C. Scholtz

This work describes a methodology for designing and evaluating web sites and web applications. Our methodology is based on the premise that tools and techniques...

Electrical Detection of Defects in SIMOX Buried Oxides: Pipes and Precipitates

October 5, 1998

Author(s)

Peter Roitman, Monica D. Edelstein, S. J. Krause

Two defect types have been identified in the buried oxide of low dose SIMOX: conductive silicon paths through the buried oxide (pipes) and silicon precipitates...

Formal Specification for Role Based Access Control User/Role and Role/Role Relationship Management

October 1, 1998

Author(s)

Serban I. Gavrila, John Barkley

Role Based Access Control (RBAC), an access control mechanism, reduces the cost of administering access control policies as well as making the process less...

Building for Environmental and Economic Sustainability (BEES)

October 1, 1998

Author(s)

Barbara C. Lippiatt

Buildings significantly alter the environment. According to Worldwatch Institute (1), building construction consumes 40 percent of the raw stone, gravel, and...

Computerized Integrated Knowledge Base System for High-Performance Concrete: An Overview

October 1, 1998

Author(s)

J R. Clifton

The rapid growth of computer-based systems such as simulation models, databases, and artificial intelligence decision-support systems, coupled with developments...

High Frequency Limitations of the JEDEC 123 Guideline

October 1, 1998

Author(s)

Dylan F. Williams

Abstract: This paper assesses certain systematic high frequency measurement errors inherent in the procedures described in the JEDEC 123 Guideline for...

On-Wafer Millimeter-Wave Characterization

October 1, 1998

Author(s)

Roger Marks

A Closer Look at Revocation and Key Compromise in Public Key Infrastructures

October 1, 1998

Author(s)

David A. Cooper

Over time, in order to improve functionality or efficiency, new features have been added to the basic framework of public key infrastructures (PKIs). While...

Authentication Proxy for the VistA Hospital Information System

October 1, 1998

Author(s)

William J. Majurski

This paper describes the concept and design of an Authentication Proxy, a network service that bridges the security environments (specifically authentication)...

The NIST Chemistry WebBook: A Tool for Chemical Data Access on the Internet

October 1, 1998

Author(s)

Peter J. Linstrom, William G. Mallard

The NIST WebBook is an Internet site that provides access to physical property data from the NIST Standard Reference Data Program. It was designed as a general...

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