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NASA Radar Penetrates Thick, Thin of Gulf Oil Spill

By Guest PostOctober 27, 2012Environment3d, aircraft, aircraft operations, barataria bay, ben holt, bp, brent minchew, california, cathleen jones, coastline, corpus christi, data, deepwater horizon, disaster, dryden, earthquakes, environmental condition, environmental impact, environmental standpoint, facility, florida keys, forestry biomass, glaciers, gulf, gulf coast, gulfstream, imaging radar, institute, jet, laboratory, louisiana wetlands, marine, mechanical recovery, Mexico, millimeter, NASA, oil emulsion, oil slicks, oil spills, palmdale, pasadena, propulsion, radar imagery, radar system, remote sensing, seawater, sensitivity, shoreline, soil moisture, spill incidence, Technology, texas, uavsar, volcanoes

PASADENA, Calif. – Researchers at NASA’s Jet Propulsion Laboratory and the California Institute of Technology in Pasadena have developed a method to use a specialized NASA 3-D imaging radar to characterize the oil in oil spills, such as the 2010 BP Deepwater Horizon spill in the Gulf of Mexico. The research can be used to improve response operations during future marine oil spills.

Caltech graduate student Brent Minchew and JPL researchers Cathleen Jones and Ben Holt analyzed NASA radar imagery collected over the main slick of the BP Deepwater Horizon oil spill on June 22 and June 23, 2010. The data were acquired by the JPL-developed Uninhabited Aerial Vehicle Synthetic Aperture Radar (UAVSAR) during the first of its three deployments over the spill area between June 2010 and July 2012. The UAVSAR was carried in a pod mounted beneath a NASA C-20A piloted aircraft, a version of the Gulfstream III business jet, based at NASA’s Dryden Aircraft Operations Facility in Palmdale, Calif. The researchers demonstrated, for the first time, that a radar system like UAVSAR can be used to characterize the oil within a slick, distinguishing very thin films like oil sheen from more damaging thick oil emulsions. (more…)

Another Advance on the Road to Spintronics

By Guest PostOctober 21, 2012Sciencealbert einstein, alexander gray, analyzer, basis, berkeley lab, charles fadley, computing industry, contamination, data, dilute, electron, electronic structure, energy conversion, energy-efficient, exchange model, facility, ferromagnetic, gallium arsenide, gallium atom, gamnas, harpes, hyogo, jan minar, Japan, jun fujii, kelvin, magnetic atom, magnetic semiconductor, memory architecture, nanoscale device, new technique, p d, peter stone, photoelectric effect, photoemission, photovoltaic cell, processing, room temperature, shigenori ueda, spin, spintronic application, spintronic technology, spring8, storage, surface reaction, synchrotron radiation, xray angle, yoshiyuki yamashita

Berkeley Lab Researchers Unlock Ferromagnetic Secrets of Promising Materials

Spintronic technology, in which data is processed on the basis of electron “spin” rather than charge, promises to revolutionize the computing industry with smaller, faster and more energy efficient data storage and processing. Materials drawing a lot of attention for spintronic applications are dilute magnetic semiconductors – normal semiconductors to which a small amount of magnetic atoms is added to make them ferromagnetic. Understanding the source of ferromagnetism in dilute magnetic semiconductors has been a major road-block impeding their further development and use in spintronics. Now a significant step to removing this road-block has been taken.

A multi-institutional collaboration of researchers led by scientists at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab), using a new technique called HARPES, for Hard x-ray Angle-Resolved PhotoEmission Spectroscopy, has investigated the bulk electronic structure of the prototypical dilute magnetic semiconductor gallium manganese arsenide. Their findings show that the material’s ferromagnetism arises from both of the two different mechanisms that have been proposed to explain it. (more…)

How Technology is Changing Kenya

By Guest PostSeptember 10, 2012Economy, Technologyafrica, big name, blog, business, changing, data, data collection, Economy, everyday life, facility, forefront, healthcare, information technology, internet, julie, Kenya, kenyans, next, online map, online resource, paul, portable, provider, smart phone, startup, Technology, wife

It is not often you think about how technology can affect an entire country, but the upsurge of affordable smart phones and portable internet have made a huge impact on the everyday lives on Kenyans. Not only do people now have access to things around the world, but they also have educational and health opportunities they have never had before. The idea of using smart phones as makeshift computers is nothing new, especially in developing countries. Where the income is limited, a smartphone can be a costly expense. However, having access to current technology will allow Kenyans to expand and grow in the world economy. To that end, here are some examples of improvements that new technology has had in the lives of Kenyans: (more…)

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NASA Radar Penetrates Thick, Thin of Gulf Oil Spill

Another Advance on the Road to Spintronics

How Technology is Changing Kenya