8,33,42,44,45,47,52,54,68
61
169
-1
4950
30
Briefs: Electronics & Computers
A proposed successive approximation analog-to-digital converter (ADC) would contain a capacitively terminated chain of identical capacitor cells (see figure). Like a conventional successive...
Briefs: Electronics & Computers
A reduced-complexity alternative to an optimum FQPSK-B Viterbi receiver has been invented. As described below, the reduction in complexity is achieved at the cost of only a small...
Briefs: Electronics & Computers
A multilayer patch antenna, similar to a Yagi antenna, surrounded by a metallic wall has been devised to satisfy requirements to fit within a specified size and shape and to generate a beam...
Briefs: Software
Software for Improved Extraction of Data From Tape Storage
A computer program has been written to replace the original software of Racal Storeplex Delta tape recorders, which are used at Stennis Space Center. The original software could be activated by a command- line interface only; the present software offers the option of a command-line or...
Briefs: Software
Software for Displaying High-Frequency Test Data
An easy-to-use, intuitive computer program was written to satisfy a need of test operators and data requestors to quickly view and manipulate high-frequency test data recorded at the East and West Test Areas at Marshall Space Flight Center. By enabling rapid analysis, this program makes it possible...
Briefs: Software
Distributed-object computing systems are presented with many security threats, including network eavesdropping, message tampering, and communications middleware masquerading. NASA Glenn...
Briefs: Software
Next-Generation Car Engines Optimized to Improve Gas Mileage
This paper examines the simulation and thermal optimization of a wide-range oxygen sensor, which helps to regulate clean and efficient motor operation. The setup of the finite element model of the oxygen sensor is discussed in detail, along with how the sensor's geometry and material...
Briefs: Motion Control
Standard induction motors, normally designed to run at base speeds between 850 to 3500 rpm, are not particularly well suited for low-speed operation, as their efficiency...
Briefs: Motion Control
An improved method has been devised for the computational prediction of a collision between (1) a robotic manipulator and (2) another part of the robot or an external object in the...
Briefs: Information Technology
The design of aerodynamic components of aircraft, such as wings or engines, involves a process of obtaining the most optimal component shape that can deliver the desired level of component performance,...
Briefs: Information Technology
Adaptation of Mesoscale Weather Models to Local Forecasting
Methodologies have been developed for (1) configuring mesoscale numerical weather- prediction models for execution on high- performance computer workstations to make short-range weather forecasts for the vicinity of the Kennedy Space Center (KSC) and the Cape Canaveral Air Force Station...
Briefs: Information Technology
Software for Managing Inventory of Flight Hardware
The Flight Hardware Support Request System (FHSRS) is a computer program that relieves engineers at Marshall Space Flight Center (MSFC) of most of the non-engineering administrative burden of managing an inventory of flight hardware. The FHSRS can also be adapted to perform similar functions for...
Briefs: Information Technology
yourSky: Custom Sky-Image Mosaics via the Internet
yourSky is a computer program that supplies custom astronomical image mosaics of sky regions specified by requesters using client computers connected to the Internet. [yourSky is an upgraded version of the software reported in "Software for Generating Mosaics of Astronomical Images" (NPO-21121),...
Briefs: Information Technology
Software Estimates Costs of Testing Rocket Engines
Simulation-Based Cost Model (SiCM), a discrete event simulation developed in Extend™, simulates pertinent aspects of the testing of rocket propulsion test articles for the purpose of estimating the costs of such testing during time intervals specified by its users. A user enters input data for...
Briefs: Information Technology
Software Supports Distributed Operations via the Internet
Multi-mission Encrypted Communication System (MECS) is a computer program that enables authorized, geographically dispersed users to gain secure access to a common set of data files via the Internet. MECS is compatible with legacy application programs and a variety of operating systems. The...
Briefs: Information Technology
Software Assists in Extensive Environmental Auditing
The Base Environmental Management System (BEMS) is a Web-based application program for managing and tracking audits by the Environmental Office of Stennis Space Center in conformity with standard 14001 of the International Organization for Standardization (ISO 14001). (This standard specifies...
Briefs: Information Technology
Software for Collaborative Engineering of Launch Rockets
The Rocket Evaluation and Cost Integration for Propulsion and Engineering software enables collaborative computing with automated exchange of information in the design and analysis of launch rockets and other complex systems. RECIPE can interact with and incorporate a variety of programs,...
Briefs: Electronics & Computers
Power demand can be managed to reduce cost.
The Ames Power Monitoring System (APMS) is a centralized system of power meters, computer hardware, and special-purpose software that collects and stores electrical...
Briefs: Electronics & Computers
A subsystem for the adaptive suppression of noise in a voice-communication system effects a high level of reduction of noise that enters the system through microphones. The subsystem...
Briefs: Electronics & Computers
Integrated arrays of microscopic solid-state batteries have been demonstrated in a continuing effort to develop microscopic sources of power and of voltage reference...
Briefs: Electronics & Computers
The figure shows one of four solid-state power amplifiers, each capable of generating an output power ≥240 mW over one of four overlapping frequency bands from 71 to 106 GHz. (The bands are...
Briefs: Information Technology
A proposed method of processing the outputs of multiple gyroscopes to increase the accuracy of rate (that is, angular- velocity) readings has been developed theoretically and...
Briefs: Information Technology
Developing Generic Software for Spacecraft Avionics
A proposed approach to the development of software for spacecraft avionics is based partly on a concept of generic software that could be tailored to satisfy requirements for specific missions. The proposed approach would stand in contrast to the conventional approach of first defining avionics...
Briefs: Information Technology
A set of special digital all-pass finite- impulse- response (FIR) filters produces phase shifts equivalent to delays that equal fractions of the sampling or clock period of a telemetry-...
Briefs: Electronics & Computers
A relatively inexpensive instrumentation system that includes units that are connected to thermocouples and that are parts of a radio-communication network has been developed to enable monitoring of...
Briefs: Electronics & Computers
Very-large-scale integrated (VLSI) analog binaural signal-processing circuits have been proposed for use in detecting and locating leaks that emit noise in the ultrasonic frequency...
Briefs: Electronics & Computers
The cascade back-propagation (CBP) algorithm is the basis of a conceptual design for accelerating learning in artificial neural networks. The neural networks would be implemented as analog...
Briefs: Electronics & Computers
A number of display systems primarily used in specialized areas such as aviation, space (NASA), and military/defense employ non-standard video signal...
Briefs: Software
Manufacturing companies must bring high-quality products to market faster than ever before. This tightened timeframe significantly impacts the manufacturing supply chain — a familiar...
Top Stories
Blog: Lighting
A Stretchable OLED that Can Maintain Most of Its Luminescence
Blog: Energy
Batteries that Can Withstand the Cold
INSIDER: Energy
Advancing All-Solid-State Batteries
Blog: Power
My Opinion: We Need More Power Soon — Is Nuclear the Answer?
Quiz: Power
Blog: Data Acquisition
Webcasts
Upcoming Webinars: Test & Measurement
From Spreadsheets to Insights: Fast Data Analysis Without Complex...
Upcoming Webinars: Defense
Cooling a New Generation of Aerospace and Defense Embedded...
Upcoming Webinars: AR/AI
Beyond AI-Copy-Paste Engineering: Advanced AI-Integration Success...
Upcoming Webinars: Automotive
Battery Abuse Testing: Pushing to Failure
Upcoming Webinars: Connectivity
A FREE Two-Day Event Dedicated to Connected Mobility
Upcoming Webinars: RF & Microwave Electronics
Choosing the Right N-Port Strategy: Multiport VNAs vs. Switch...

