⌕ Поиск по атласу

NIST · ИТ

Выбранные официальные каталоги по ИТ, безопасности, приватности, ИИ и связи.

Реестр · 6 880 документов

Role Based Access Control for the World Wide Web

Role Based Access Control for the World Wide Web

One of the most challenging problems in managing large networked systems is the complexity of security administration. This is particularly true for organizations that AWeb (WWW) servers. Today, security administration is costly and prone to error because

Conference Paper

Role Based Access Control for the World Wide Web

Conference Paper

Proceedings of the 20th National Information Systems Security Conference

Federal Implementation Guideline for Electronic Data Interchange ASC X12 003040 Transaction Set 822 Customer Account Analysis

Federal Implementation Guideline for Electronic Data Interchange ASC X12 003040 Transaction Set 822 Customer Account Analysis

The ASC X12 003040 Transaction Set 822 Customer Account Analysis, Implementation Convention defines the Federal Government's interpretation of the use of ASC X12 003040 standards. This implementation convention provides the information necessary for the

Characterization of Coplanar Waveguide on Epitaxial Layers

Characterization of Coplanar Waveguide on Epitaxial Layers

We examine the effect of thin AlInAs/GaInAs epitaxial layers on the propagation of electrical signals in coplanar waveguide transmission lines fabricated on semi-insulating indium phosphide substrates. We show that argon isolation implants effectively

Noise-Temperature Measurement System for the WR-28 Band

Noise-Temperature Measurement System for the WR-28 Band

The NIST Noise Project has constructed and tested a radiometer for the measurement of noise sources in the WR-28 waveguide band (26.5 GHz to 40 GHz). It is a total-power radiometer which incorporates a six-port reflectometer for the measurement of relevant

Federal Implementation Guideline for Electronic Data Interchange, ASC X12 003050 Transaction Set 251, Pricing Support Implementation Convention

Federal Implementation Guideline for Electronic Data Interchange, ASC X12 003050 Transaction Set 251, Pricing Support Implementation Convention

Federal Implementation Guideline for Electronic Data Interchange, ASC X12 003040 Transaction Set 822, Customer Account Analysis Implementation Convention

Federal Implementation Guideline for Electronic Data Interchange, ASC X12 003040 Transaction Set 822, Customer Account Analysis Implementation Convention

Translational Kinetic-Energy Distributions of Positive Ions Produced in Townsend Discharges of SF6 at High Electric Field-To-Gas Density Ratios (E/N)

Translational Kinetic-Energy Distributions of Positive Ions Produced in Townsend Discharges of SF6 at High Electric Field-To-Gas Density Ratios (E/N)

Symposium Transcription - Usability Engineering: Industry-Government Collaboration for System Effectiveness and {?} {?} {?}Efficiency

Symposium Transcription - Usability Engineering: Industry-Government Collaboration for System Effectiveness and {?} {?} {?}Efficiency

Report on the TMACH Experiment

Report on the TMACH Experiment

Negative Ion-Energy Distributions and Ion-Neutral Reactions in SF6 Townsend Discharges at High Electric Field-To-Gas Density Ratios (E/N)

Negative Ion-Energy Distributions and Ion-Neutral Reactions in SF6 Townsend Discharges at High Electric Field-To-Gas Density Ratios (E/N)

Electron Interactions with CCl2F2

Electron Interactions with CCl2F2

ITL Bulletin

Public Key Infrastructure Technology

IR 6068

Report on the TMACH Experiment

Embedded multiconductor transmission line characterization

Embedded multiconductor transmission line characterization

This paper presents a measurement method that characterizes lossy printed multiconductor transmission lies embedded in transitions, connectors, or packages with significant electrical parasitics. We test the method on a pair of lossy coupled asymmetric

S-Check, by Example

S-Check, by Example

Multiconductor Transmission Line Characterization

Multiconductor Transmission Line Characterization

This paper presents a measurement method that completely characterizes lossy printed multiconductor transmission lines. It determines not only the matrices of impedances and admittances per unit length describing the transmission line in the conductor

Metrology for Information Technology [IT]

Metrology for Information Technology [IT]

Electrothermal Simulation of an IGBT PWM Inverter

Electrothermal Simulation of an IGBT PWM Inverter

A recently developed electrothermal network simulation methodoogy is used to analyze the behavior of a full-bridge, pulse-width modulated (PWM), voltage-source inverter, which uses insulated gate bipolar transistors (IGBT's) as the switching devices. The

Diffuse-Interface Methods in Fluid Mechanics

Diffuse-Interface Methods in Fluid Mechanics