Keyword: Optimization

Briefs: Photonics/Optics

A prime focus spectrometer (PFS), along with corrective optics, will mount in place of the secondary mirror of the Subaru telescope on Mauna Kea, Hawaii. This will allow simultaneous observations of...

Articles: Lighting

A successful LED system design must be able to transfer the active device’s heat efficiently from its own PN junction to the ambient. This path includes the printed circuit board on...

Briefs: Information Technology
Ionospheric Simulation System for Satellite Observations and Global Assimilative Modeling Experiments (ISOGAME)

ISOGAME is designed and developed to assess quantitatively the impact of new observation systems on the capability of imaging and modeling the ionosphere. With ISOGAME, one can perform observation system simulation experiments (OSSEs)....

Briefs: Information Technology
Powered Descent Guidance With General Thrust-Pointing Constraints

The Powered Descent Guidance (PDG) algorithm and software for generating Mars pinpoint or precision landing guidance profiles has been enhanced to incorporate thrust-pointing constraints. Pointing constraints would typically be needed for onboard sensor and navigation systems that...

Briefs: Information Technology
Ionospheric Simulation System for Satellite Observations and Global Assimilative Model Experiments — ISOGAME

Modeling and imaging the Earth’s ionosphere as well as understanding its structures, inhomogeneities, and disturbances is a key part of NASA’s Heliophysics Directorate science roadmap. This invention provides a design tool for...

Briefs: Physical Sciences
Radio Frequency Plasma Discharge Lamps for Use as Stable Calibration Light Sources

Stable high radiance in visible and near-ultraviolet wavelengths is desirable for radiometric calibration sources. In this work, newly available electrodeless radio-frequency (RF) driven plasma light sources were combined with research-grade, low-noise power...

Briefs: Information Technology
Numerical Simulation of Rocket Exhaust Interaction With Lunar Soil

This technology development originated from the need to assess the debris threat resulting from soil material erosion induced by landing spacecraft rocket plume impingement on extraterrestrial planetary surfaces. The impact of soil debris was observed to be highly detrimental...

Briefs: Physical Sciences
Adaptive Sampling of Time Series During Remote Exploration

This work deals with the challenge of online adaptive data collection in a time series. A remote sensor or explorer agent adapts its rate of data collection in order to track anomalous events while obeying constraints on time and power. This problem is challenging because the agent has...

Briefs: Software
HURON (HUman and Robotic Optimization Network) Multi-Agent Temporal Activity Planner/ Scheduler

HURON solves the problem of how to optimize a plan and schedule for assigning multiple agents to a temporal sequence of actions (e.g., science tasks). Developed as a generic planning and scheduling tool, HURON has been used to optimize space mission...

Briefs: Electronics & Computers

A three-frequency millimeter-wave feed horn was developed as part of an advanced component technology task that provides components necessary for higher-frequency radiometers to meet the...

Briefs: Manufacturing & Prototyping

The sounding rocket experiment FIRE (Far-ultraviolet Imaging Rocket Experi ment) will improve the science community’s ability to image a spectral region hitherto unexplored...

Briefs: Robotics, Automation & Control
Hands-Free Transcranial Color Doppler Probe

Current transcranial color Doppler (TCD) transducer probes are bulky and difficult to move in tiny increments to search and optimize TCD signals. This invention provides miniature motions of a TCD transducer probe to optimize TCD signals.

Briefs: Physical Sciences
Whispering Gallery Mode Optomechanical Resonator

Great progress has been made in both micromechanical resonators and microoptical resonators over the past decade, and a new field has recently emerged combining these mechanical and optical systems. In such optomechanical systems, the two resonators are strongly coupled with one influencing the...

Briefs: Software

The need to maintain optimal energy efficiency is critical during the drilling operations performed on future and current planetary rover missions (see...

Techs for License: Lighting
Device Structure for High Efficiency LED

Researchers at the University of California, Santa Barbara, have developed a novel device structure that reduces light absorption inside an LED, enables uniform light emission from the active layer, and reduces light reflections occurring repeatedly inside the LED, thus increasing the overall...

Products: Lighting

Evonik Cyro LLC (Parsippany, NJ) recently announced the launch of ACRYLITE® LED, molding and extrusion compounds designed specifically for LED lighting applications. By offering ACRYLITE® LED in both...

Briefs: Software

If carmakers could reduce the number, size, and weight of the components in there, better fuel economy would result. A case in point is the design and...

Briefs: Information Technology
General Methodology for Designing Spacecraft Trajectories

A methodology for designing spacecraft trajectories in any gravitational environment within the solar system has been developed. The methodology facilitates modeling and optimization for problems ranging from that of a single spacecraft orbiting a single celestial body to that of a...

Briefs: Software
Active Mirror Predictive and Requirements Verification Software (AMP-ReVS)

This software is designed to predict large active mirror performance at various stages in the fabrication lifecycle of the mirror. It was developed for 1-meter class powered mirrors for astronomical purposes, but is extensible to other geometries. The package accepts...

Briefs: Information Technology
Trick Simulation Environment 07

The Trick Simulation Environment is a generic simulation toolkit used for constructing and running simulations. This release includes a Monte Carlo analysis simulation framework and a data analysis package. It produces all auto documentation in XML. Also, the software is capable of inserting a malfunction at any...

Briefs: Software
Geometric Reasoning for Automated Planning

An important aspect of mission planning for NASA’s operation of the International Space Station is the allocation and management of space for supplies and equipment. The Stowage, Configuration Analysis, and Operations Planning teams collaborate to perform the bulk of that planning. A Geometric...

Briefs: Information Technology
Recursive Branching Simulated Annealing Algorithm

This innovation is a variation of a simulated- annealing optimization algorithm that uses a recursive-branching structure to parallelize the search of a parameter space for the globally optimal solution to an objective. The algorithm has been demonstrated to be more effective at searching a...

Application Briefs: Lighting
Stratasys, Inc. Eden Prairie, MN

In April 2009, Tommy Voeten, President of the New York City-based 1212-Studio, was asked to help illuminate the fabric roof of the stages for rock...

Application Briefs: Robotics, Automation & Control

Previously, the walk from the sales counter of the pharmacy to the medication drawer wasted valuable time. Today, the fully automated picking system for European pharmacies by KLS requires only...

Briefs: Information Technology
Physics Mining of Multi-Source Data Sets

Powerful new parallel data mining algorithms can produce diagnostic and prognostic numerical models and analyses from observational data. These techniques yield higher-resolution measures than ever before of environmental parameters by fusing synoptic imagery and time-series measurements. These techniques...

Briefs: Software
Nemesis Autonomous Test System

A generalized framework has been developed for systems validation that can be applied to both traditional and autonomous systems. The framework consists of an automated test case generation and execution system called Nemesis that rapidly and thoroughly identifies flaws or vulnerabilities within a system. By...

Application Briefs: Robotics, Automation & Control

Mechatronics can be defined as the science to optimize the performance and capabilities of machines using a multi-domain synergistic design approach. It is also...

Application Briefs: Photonics/Optics

Utilization of COTS (commercial off-the-shelf) products is now almost a bylaw of government and military design projects and is becoming of increasing interest in commercial designs, as...

Briefs: Information Technology
Minimum Landing Error Powered- Descent Guidance for Planetary Missions

An algorithm improves the accuracy with which a lander can be delivered to the surface of Mars. The main idea behind this innovation is the use of a “lossless convexification,” which converts an otherwise non-convex constraint related to thruster throttling to a convex...