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thinkahol *

New laser technology could revolutionize communications | KurzweilAI - 0 views

www.kurzweilai.net/d-revolutionize-communications

New laser technology could revolutionize communications | KurzweilAI

shared by thinkahol * on 04 Apr 11 - No Cached
  • thinkahol * on 04 Apr 11
     
    Engineers at Stevens Institute of Technology have developed a technique to optically modulate the frequency of a laser beam and create a signal that is disrupted significantly less by environmental factors, says Dr. Rainer Martini. The research provides for enhanced optical communications, allowing mobile units not tied to fiber optic cable to communicate in the range of 100 GHz and beyond, the equivalent of 100 gigabytes of data per second. Eventually, the team hopes to extend the reach into the terahertz spectrum. The frequency or amplitude modulation of middle infrared quantum cascade lasers has been limited by electronics, which are barely capable of accepting frequencies of up to 10 GHz by switching a signal on and off.  Marini and his team have developed a method to optically induce fast amplitude modulation in a quantum cascade laser to control the laser's intensity. Their amplitude modulation system employed a second laser to modulate the amplitude of the middle infrared laser, using light to control light. The current detector is only capable of detecting frequencies up to 10 GHz, but Dr. Martini is confident that a new detector will make the system capable of much higher frequencies. With an optical system that is stable enough, satellites may one day convert to laser technology, resulting in a more mobile military and super-sensitive scanners, as well as faster Internet for the masses, says Martini. Ref.: "Optically induced fast wavelength modulation in a quantum cascade laser," Applied Physics Letters, July 7, 2010.
thinkahol *

Evolution machine: Genetic engineering on fast forward - life - 27 June 2011 - New Scie... - 0 views

www.newscientist.com/...gineering-on-fast-forward.html

Evolution machine: Genetic engineering on fast forward - life 27 June 2011 New Scientist

shared by thinkahol * on 01 Jul 11 - No Cached
  • thinkahol * on 01 Jul 11
     
    Automated genetic tinkering is just the start - this machine could be used to rewrite the language of life and create new species of humans
carolsmith1610

Geofencing and Location Tracking: Why Companies Must Pay Attention - 0 views

blog.scalefusion.com/y-companies-must-pay-attention

mobile device management mdm solution enterprise mobility management mobile location tracking geolocation geofencing

shared by carolsmith1610 on 20 May 19 - No Cached
  • carolsmith1610 on 20 May 19
     
    Geofencing and Location tracking is one of the important features of Enterprise Mobility Management. Know how it immensely helps businesses simplify mobile device management through fast, real-time and remote device tracking.
carolsmith1610

How Mobile Apps Are Improving The hospitality industry? - 0 views

www.quora.com/...Arpita-Biswas-115

mobile apps mobile device management mdm solution mdm for hospitality business technology cloud technology

shared by carolsmith1610 on 02 Aug 19 - No Cached
  • carolsmith1610 on 02 Aug 19
     
    Know how mobile apps are improving hospitality services and why Mobile Device Management Solutions is important as the hospitality industry is fast embracing Mobility and mobile-first technology.
Duane Sharrock

As Hurricanes Approach, the Robotic Storm Chasers of the Future Are Ready | Popular Sci... - 0 views

www.popsci.com/...noaa-robots

hurricanes robotic storm science EMILY NOAA robot forecasting hurricane forecasting storm forecasting tools data streaming

shared by Duane Sharrock on 30 Aug 12 - No Cached
  • Authorities like NOAA gather storm data from a few different sources--from aircraft circling the weather system from tens of thousands of feet, from stationary weather buoys scattered throughout the Gulf of Mexico, from Earth-orbiting satellites--giving scientists a great view of the area around the storm.
  • “Currently there are only two or three ways to get this kind of data,” Dr. Alan Leonardi, deputy director of NOAA’s Atlantic Oceanographic and Meteorological Laboratory, says. “First, you can have a storm serendipitously traverse over a buoy that happens to already be in the water, and that doesn’t happen as frequently as some might believe. Another would be to position a ship out there to collect this data, but that creates a dangerous situation for any crew that might be aboard the ship, so we’re not going to do that. The third--and we have done this--is to deploy instruments from aircraft in front of a storm that can collect data as the storm passes. We then go back in a ship and pick up those buoys--if they survive and don’t end up sinking.”
  • NOAA’s two robotic platforms are being developed independently of one another, yet their roles dovetail neatly. The Liquid Robotics Wave Glider platform is designed as a kind of storm monitoring sentry--like a weather buoy, but one that researchers can move at will. Wave Gliders harvest their propulsive energy from ocean waves themselves and power their onboard electronics with solar energy. This means they are not very fast--too slow to actually chase a storm in most cases--but they can remain at sea for months on end, waiting and watching.
  • ...4 more annotations...
  • the agency already has one Wave Glider in the water north of Puerto Rico as a test-bed for the dozens NOAA hopes will follow. Isaac tracked south of Puerto Rico and missed the prototype, but the robot did manage to capture data from some intense weather along the outer bands of the system--the first of what NOAA hopes will be a new wealth of hurricane data produced by its robotic fleet.
  • the eyewall--the ring of powerful thunderheads that encircle the eye of the storm.
  • With an operational life of ten days, EMILY can be dropped into the water ahead of a storm, navigate its way into the very center, and remain there, tracking the storm as it moves while streaming data all along the way.
  • Better hurricane prediction translates directly to lowered economic losses, better mitigation of property damage, and--as it goes without saying on the eve of Katrina’s anniversary--lives saved.
  • Duane Sharrock on 30 Aug 12
     
    As the 2012 hurricane season reaches full tilt, researchers at NOAA are hard at work hacking two different maritime robots that the agency hopes will become critical storm forecasting tools of the future. The first, Liquid Robotics' Wave Glider, is envisioned as a persistent surveillance platform, an army of mobile monitoring stations that will remain at sea for the duration of a hurricane season, waiting to swarm into the path of a developing storm. The second--Hydronalix's Emergency Integrated Life Saving Lanyard, or EMILY (a 2010 PopSci Best of What's New award winner)--will be capable of tracking the storm itself for days at a time, streaming continuous data directly from the center of the storm to researchers ashore.
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