Broadband terahertz light emitters have been designed and fabricated using nanoscale U-shaped building blocks. The terahertz spectral range sits between infrared and typical radar frequencies, and the challenges of efficiently generating and detecting terahertz radiation has limited its use. However, broadband terahertz sources offer exciting possibilities to study fundamental physics principles, to develop non-invasive material imaging and sensing, and make possible terahertz information, communication, processing and storage.
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Researchers have developed the first theoretical model of the self-assembly of nanocubes that have been coated with polymers, including DNA and have shown exciting possibilities for experimentally programming self-assembled structures. While spherical nanoparticles can align in any direction, nanocubes will only align with their faces oriented in certain ways.
By slipping iron between two nitrogen atoms in a lithium matrix, researchers are able to trick iron into having magnetic properties like those of rare-earth elements.Rare-earth magnets are stronger than typical iron-based magnets and have high magnetic anisotropy, meaning they are easily magnetized in one particular direction. Rare-earth elements are in high demand, difficult to find in large concentrations, and costly to mine. Iron, in contrast, is abundant and cheap. If iron can be made to behave like a rare-earth element, strong permanent magnets could be made without rare earths.
Midwest Forensic Resource Centerâ€™s
Annual Midwest Crime Lab Directorâ€™s Meeting
Oklahoma City, OK
Hosted by the Oklahoma State Bureau of Investigation
Agenda for Wednesday, July 23rd
|Assertiveness training is the topic for an Aug. 13 lunch and learn. This workshop will help you learn how to express your personal opinions, feelings and attitudes in an effective and professional manner.|
|The Critical Materials Institute (CMI) celebrated its first anniversary with 11 invention disclosures, all research milestones in a mission to assure the availability of rare earths and other materials critical to clean energy technologies.|
|Ames Laboratory is now the home to a dynamic nuclear polarization (DNP) solid-state nuclear magnetic resonance (NMR) spectrometer that helps scientists understand how individual atoms are arranged in materials.|
|Walking provides an easy entry (or re-entry) into exercise, especially after vacation may have added a few pounds. And smart phone apps can help you track your progress and give you a motivational boost to meet your fitness goals.|