REESHMA
New Switch Could Improve Electronics
Researchers at the University of Pittsburgh have invented a new type of electronic switch that performs electronic logic functions within a single molecule. The incorporation of such single-molecule elements could enable smaller, faster, and more energy-efficient electronics.
"This new switch is superior to existing single-molecule concepts," said Hrvoje Petek, principal investigator and professor of physics and chemistry in the Kenneth P. Dietrich School of Arts and Sciences and codirector of the Petersen Institute for NanoScience and Engineering (PINSE) at Pitt. "We are learning how to reduce electronic circuit elements to single molecules for a new generation of enhanced and more sustainable technologies."
The switch was discovered by experimenting with the rotation of a triangular cluster of three metal atoms held together by a nitrogen atom, which is enclosed entirely within a cage made up entirely of carbon atoms. Petek and his team found that the metal clusters encapsulated within a hollow carbon cage could rotate between several structures under the stimulation of electrons. This rotation changes the molecule's ability to conduct an electric current, thereby switching among multiple logic states without changing the spherical shape of the carbon cage. Petek says this concept also protects the molecule so it can function without influence from outside chemicals.Because of their constant spherical shape, the prototype molecular switches can be integrated as atom-like building blocks the size of one nanometer (100,000 times smaller than the diameter of a human hair) into massively parallel computing architectures.
The prototype was demonstrated using an Sc3N@C80 molecule sandwiched between two electrodes consisting of an atomically flat copper oxide substrate and an atomically sharp tungsten tip. By applying a voltage pulse, the equilateral triangle-shaped Sc3N could be rotated predictably among six logic states.
ATHIRA
DRAGANFLYER X6
Draganflyer X6 is very useful in educational applications such as Advanced RC Flight Research, Aerial Archeology, Environmental Assessment, and Geological Exploration.
FEATURES AT A GLANCE:
Draganflyer X6 is unique in many terms. It has some very advanced features that make it different and more efficient then other remote controlled helicopters. Some of these features are:
1)Six Rotor Co-Axial Configuration
2)GPS Facility
3)Carbon Fiber Folding Frame
4)Handheld Flight Controller
5)Advanced Power System
6)High Damage Tolerance
7)Specially manufactured Cases
8)Engineered for Safety
9)Electronic Flight Stability
10)Telemetry Software
11)Wireless Video System
12)Anti-Vibration Camera Mount
13)HD Digital Video Camera
14)Low Light Camera
15)Thermal Infrared Camera
These various features of Draganflyer X6 makes it very useful and efficient in its work.
http://www.squidoo.com/latestinventions
New Switch Could Improve Electronics
Researchers at the University of Pittsburgh have invented a new type of electronic switch that performs electronic logic functions within a single molecule. The incorporation of such single-molecule elements could enable smaller, faster, and more energy-efficient electronics.
"This new switch is superior to existing single-molecule concepts," said Hrvoje Petek, principal investigator and professor of physics and chemistry in the Kenneth P. Dietrich School of Arts and Sciences and codirector of the Petersen Institute for NanoScience and Engineering (PINSE) at Pitt. "We are learning how to reduce electronic circuit elements to single molecules for a new generation of enhanced and more sustainable technologies."
The switch was discovered by experimenting with the rotation of a triangular cluster of three metal atoms held together by a nitrogen atom, which is enclosed entirely within a cage made up entirely of carbon atoms. Petek and his team found that the metal clusters encapsulated within a hollow carbon cage could rotate between several structures under the stimulation of electrons. This rotation changes the molecule's ability to conduct an electric current, thereby switching among multiple logic states without changing the spherical shape of the carbon cage. Petek says this concept also protects the molecule so it can function without influence from outside chemicals.Because of their constant spherical shape, the prototype molecular switches can be integrated as atom-like building blocks the size of one nanometer (100,000 times smaller than the diameter of a human hair) into massively parallel computing architectures.
The prototype was demonstrated using an Sc3N@C80 molecule sandwiched between two electrodes consisting of an atomically flat copper oxide substrate and an atomically sharp tungsten tip. By applying a voltage pulse, the equilateral triangle-shaped Sc3N could be rotated predictably among six logic states.
ATHIRA
DRAGANFLYER X6
Draganflyer X6 is very useful in educational applications such as Advanced RC Flight Research, Aerial Archeology, Environmental Assessment, and Geological Exploration.
FEATURES AT A GLANCE:
Draganflyer X6 is unique in many terms. It has some very advanced features that make it different and more efficient then other remote controlled helicopters. Some of these features are:
1)Six Rotor Co-Axial Configuration
2)GPS Facility
3)Carbon Fiber Folding Frame
4)Handheld Flight Controller
5)Advanced Power System
6)High Damage Tolerance
7)Specially manufactured Cases
8)Engineered for Safety
9)Electronic Flight Stability
10)Telemetry Software
11)Wireless Video System
12)Anti-Vibration Camera Mount
13)HD Digital Video Camera
14)Low Light Camera
15)Thermal Infrared Camera
These various features of Draganflyer X6 makes it very useful and efficient in its work.
http://www.squidoo.com/latestinventions
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