Supersonic aircraft generate shock waves that move outward and extend to the ground. As a cone of pressurized air spreads across the landscape along the flight path, it creates a continuous sonic boom along the flight track. Several factors can influence sonic booms: weight, size, and...

A vectorized rebinning (down-sampling) algorithm, applicable to Ndimensional data sets, has been developed that offers a significant reduction in computer run time when compared to conventional rebinning algorithms. For clarity, a two-dimensional version of the algorithm is discussed to...

MARS is a graphical user interface (GUI) written in MATLAB and Java, allowing the user to configure and control the Scalable Parallel Architecture for Real-Time Acquisition and Analysis (SPARTAA) data acquisition system. SPARTAA not only acquires data, but also allows for complex algorithms to be...

Many current and future NASA missions are capable of collecting enormous amounts of data, of which only a small portion can be transmitted to Earth. Communications are limited due to distance, visibility constraints, and competing mission downlinks. Long missions and...

A tool based on IDL (Interactive Data Language) and DAP (Data Access Protocol) has been developed for user-friendly remote data access. A difficulty for many NASA re searchers using IDL is that often the data to analyze are located remotely and are too large to transfer for local analysis. Researchers have developed a...

A large depth-of-field particle image velocimeter (PIV) is designed to characterize dynamic dust environments on planetary surfaces. This instrument detects lofted dust particles, and senses the number of particles per unit volume, measuring their sizes,...

This innovation is capable of correlating two analog signals by using an analog- based signal conditioning front end to hard-limit the analog signals through adaptive thresholding into a binary bit stream, then performing the correlation using a Hamming “similarity”...

Application-specific-integrated-circuit (ASIC) design for space applications involves multiple challenges of maximizing performance, minimizing power, and ensuring reliable operation in extreme environments. This is a complex multidimensional optimization problem, which...

The objective of this effort was to develop a non-toxic, non-flammable, –80 °C phase change material (PCM) to be used in NASA’s ICEPAC capsules for biological sample preservation in flight to and from Earth orbit. A temperature of about –68 °C or lower is a critical temperature for...

Researchers have learned that running cockroaches recover from a shove before their dawdling nervous system kicks in to tell their legs what to do. These new insights on how biological systems stabilize could one day help engineers design steadier robots and improve doctors' understanding of human gait...

A new method of harvesting the Sun's energy is emerging, thanks to scientists at UC Santa Barbara's Departments of Chemistry, Chemical Engineering, and Materials. Though still in its infancy, the research promises to convert sunlight into energy using a process based on metals that are more...

Researchers at Brown University have developed a robotic bat wing that provides valuable new information about dynamics of flapping flight in real bats. The robot, which mimics the wing shape and motion of the lesser dog-faced fruit bat, is designed to flap while attached to a force transducer in a wind tunnel.

Last month, the U.S. Food and Drug Administration cleared iRobot's RP-VITA telepresence robot for operation in hospitals. Controlled by an iPad interface, the RP-VITA allows doctors to virtually "visit" patients and staff remotely. Similarly, it was reported this month that a boy...

Simple blast fences called baffles could deliver improvements in air quality for people living near airports, new research has found. Placed behind a runway, the baffles could serve as a “virtual chimney,” funneling emissions from aircraft engines upwards where they can...

The National Center for Atmospheric Research (NCAR) has developed a prototype system to help flights avoid major storms as they travel over remote ocean regions. The 8-hour forecasts of potentially dangerous atmospheric conditions are designed for pilots, air traffic controllers, and others...

The Air Force Civil Engineer Center, in conjunction with the Air Force Research Laboratory, recently introduced a first-of-its-kind runway rubber removal system for use at remote airfields. The device, which uses a retrofitted Unimog designed for transport to airfields in austere areas of Southwest Asia,...

A quick, accurate, and highly sensitive process to reliably detect minute traces of explosives on luggage, cargo, or traveling passengers has been demonstrated by scientists at the Department of Energy's Pacific Northwest National Laboratory. The vapor detection technology accurately detects and...