News tagged with analog signals


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Search results for analog signals


Explained: The Discrete Fourier Transform

Explained: The Discrete Fourier Transform

Other Sciences / Mathematics

created Nov 25, 2009 | popularity 4.2 / 5 (33) | comments 8

(PhysOrg.com) -- In 1811, Joseph Fourier, the 43-year-old prefect of the French district of Isčre, entered a competition in heat research sponsored by the French Academy of Sciences. The paper he submitted ...


New device implanted by surgeons help paralyzed patients breathe easier

Medicine & Health / Research

created Nov 25, 2009 | popularity not rated yet | comments 0

Physicians at UT Southwestern Medical Center soon will begin implanting a new device designed to improve breathing in patients with upper spinal-cord injuries or other diseases that keep them from breathing independently.


Study sheds light on brain's fear processing center

Medicine & Health / Research

created Nov 25, 2009 | popularity 5 / 5 (3) | comments 1

Breathing carbon dioxide can trigger panic attacks, but the biological reason for this effect has not been understood. A new study by University of Iowa researchers shows that carbon dioxide increases brain acidity, which ...


The cause behind the characteristic shape of a long leaf revealed

The cause behind the characteristic shape of a long leaf revealed

Other Sciences / Mathematics

created Nov 23, 2009 | popularity 5 / 5 (3) | comments 0

Applied mathematicians dissected the morphology of the plantain lily (Hosta lancifolia), a characteristic long leaf with a saddle-like arc midsection and closely packed ripples along the edges. The simple ...


Superconductor magnet heat shield being developed

Superconductor magnet spacecraft heat shield being developed

Physics / General Physics

created Nov 26, 2009 | popularity 4.8 / 5 (37) | comments 25

(PhysOrg.com) -- European space agencies and an aerospace giant are developing a new re-entry heat shield that will use superconductor magnets to generate a magnetic field strong enough to deflect the superhot ...


Measured -- The time it takes us to find the words we need

Medicine & Health / Psychology & Psychiatry

created Nov 23, 2009 | popularity 4.1 / 5 (7) | comments 1

(PhysOrg.com) -- The time it takes for our brains to search for and retrieve the word we want to say has been measured for the first time. The discovery is reported in a paper published in the Proceedings of the National Ac ...


Overeating can set stage for obesity, researchers say

Medicine & Health / Health

created Nov 27, 2009 | popularity 5 / 5 (1) | comments 2

It doesn't seem like a fair fight. In one corner loomed the Thanksgiving table, groaning with poultry, pie and mashed potatoes.


Ecologists sound out new solution for monitoring cryptic species

Biology / Ecology

created Nov 27, 2009 | popularity not rated yet | comments 0

Ecologists have at last worked out a way of using recordings of birdsong to accurately measure the size of bird populations. This is the first time sound recordings from a microphone array have been translated into accurate ...


In the Brain, Seven Is A Magic Number

In the Brain, Seven Is A Magic Number

Physics / General Physics

created Nov 23, 2009 | popularity 4.5 / 5 (43) | comments 14

Having a tough time recalling a phone number someone spoke a few minutes ago or forgetting items from a mental grocery list is not a sign of mental decline; in fact, it's natural.


Opposites attract: Monkeys choose mating partners with different genes

Biology / Evolution

created Nov 24, 2009 | popularity 5 / 5 (1) | comments 0

The world's largest species of monkey 'chooses' mates with genes that are different from their own to guarantee healthy and strong offspring, according to a new research study.



List of search results for analog signals