asteroza + resonance   38

Principles of Dynamic Heterogeneous Catalysis: Surface Resonance and Turnover Frequency Response | ACS Catalysis
If the catalyst oscillates near the chemical reaction resonance frequency, you can break the Sabatier maximum catalyst reaction rate
catalyst  chemical  reaction  rate  mateirals  science  physics  chemistry  research  technology  vibration  oscillation  surface  resonance 
14 days ago by asteroza
GLOBAL ENERGY TRANSMISSION – Making our wireless energy transmission breakthrough a reality
Some sort of resonant coupling type wireless power transmission, relying on a long-ish receiver antenna to allow a 20m charge range?
magnetic  resonant  resonance  coupling  wireless  power  transmission  WPT  UAV  drone  recharger  charger  remote  hardware  electronics  devices 
march 2018 by asteroza
Near-infrared–to–visible highly selective thermal emitters based on an intrinsic...
New work on using nanorods for a wide frequency converter, to effectively change a solar cell's efficiency by converting waste spectrum into usable spectrum
photonic  resonance  nanorod  frequency  converter  IR  visible  materials  science  research  technology  selective  emitter  Delicious 
january 2017 by asteroza
Synthesized material enables plasmonic devices in mid-infrared range
New material found that does surface plasmon resonance in the mid-IR range, which previously was unavailable (usually metals in UV or semiconductors in far-IR, but nothing in between)
cadmiun  oxide  dysprosium  doping  mid  IR  surface  plasmon  resonance  oscillator  materials  science  research  technology  Delicious 
february 2015 by asteroza
Rezence™ Wireless Power, Wireless Charging Standard | A4WP
Rezence now has resonant mode (A4WP) and inductive mode specs now, the inductive mode being PMA (so in theory very similar to QI with possible dual mode Qi/PMA). So the ideal final receiver would be a Rezence tri-mode chip and coil setup.
Rezence  A4WP  wireless  charging  recharging  specification  standard  magentic  resonance  resonant  induction  inductive  PMA  energy  Delicious 
december 2013 by asteroza
Cota, Real wireless power
WPT using ISM 2.4GHz band magnetic resonance techniques.
wireless  resonance  2.4GHz  WPT  power  magnetic  transmission  Delicious 
september 2013 by asteroza
New Wireless Power Transmission Method Improves Efficiency of Entire System -- Tech-On!
Using some sort of high speed switching of DC, they avoid inverter/rectifier losses otherwise incurred by wireless power transmission systems that rely on AC transmission methods, when connected to end user devices that normally use DC current, such as most consumer electronics.
technology  research  physics  japan  transmission  power  wireless  resonance  current  direct  DC  Delicious 
december 2012 by asteroza
Wireless Power by IDT and Intel
IDT is now making wireless recharger IC chips incorporating Intel WCT stuff, and nominally also supporting Qi.
IDT  intel  WCT  magnetic  resonance  inductive  charging  recharging  wireless  technology  IC  chip  charger  recharger  hardware  electronics  devices  Qi  Delicious 
august 2012 by asteroza
Fraunhofer Announces New Wireless Power Transmission Technology -- Tech-On!
Some kind of bizarre wide gap motor/transmission setup utilizing magnetic resonance coupling to physically rotate a remote magnet. I wonder if you could embed this technique in a vacuum flywheel to avoid a rotating shaft seal?
Fraunhofer  wireless  power  transmission  mechanical  magnet  rotation  magnetic  resonance  coupling  Delicious 
april 2012 by asteroza
Cooling semiconductor by laser light – Niels Bohr Institute - University of Copenhagen
Interesting potential solid state cryocooler tech here. But the experiment, while successful in going from room temperature to low cryogenic temps, was done in a vacuum.
optomechanics  semiconductor  resonance  laser  cooling  cyrogenic  physics  optics  materials  science  research  Delicious 
january 2012 by asteroza
Nanoscale Research Letters | Full text | Tailoring photonic metamaterial resonances for thermal radiation
This seems to use the same kind of tricks as those luminescent solar concentrator plates, that internally reflect captured light and convert the frequency internally to retransmit to edge PV modules. Just shifting down to IR. The interesting bit is the prevention of reradiation through the top surface, which provides the potential for solar thermal power generation without concentrating mirrors using not well aligned surfaces of panels manufactured using chip fabrication techniques.
TPV  selective  absorber  photonic  metamaterial  resonance  crystal  thermal  emission  radiation  reradiation  solar  IR  concentrating  thermophotovoltaic  materials  science  research  technology  nanotechnology  optics  Delicious 
december 2011 by asteroza
A Super-Absorbent Solar Material - Technology Review
Interesting work since it isn't polarization dependent, unlike that loss medium research which seemed to need some phase canceling effects to work right.
thin  film  plasmonic  broadband  absorber  optical  resonance  materials  science  optics  research  technology  nanostructure  wedge  pattern  nanotechnology  Delicious 
november 2011 by asteroza
Energy Harvesting | Phononic Devices
Seems to be some kind of semiconductor based thermoelectric generator, related to laser optics materials research and phonons.
thermoelectric  power  generator  green  energy  materials  science  research  technology  Phonon  optics  resonance  ARPA-E  Delicious 
july 2011 by asteroza
Humdinger :: Windbelt Large
Using the buzzing effect of a taut belt in wind, these guys use a piezoelectric fabric to recover the vibration energy of the belt as it resonates in the passing wind turbulence. The only big issue I can see is the noise generated, as by design you lose a fair amount of wind generated power to acoustic loses
Humdinger  Windbelt  piezoelectric  fabric  belt  vibration  resonance  wind  noise  oscillation  turbulence  power  generator  harvesting  scavenging  green  energy  Delicious 
july 2011 by asteroza
Your Apple iMac may soon be wirelessly charging iPods, iPhones and iPads » Unwired View
NFMR is interesting, but will this use the Qi protocol for negotiating the power levels? Plus, if you go this far, might as well do wireless USB since that is the same approximate range.
NFMR  near  field  magnetic  resonance  medium  range  wireless  power  transmitter  receiver  patent  technology  transfer  Apple  Delicious 
june 2011 by asteroza
Reisz Engineers - Huntsville, Alabama - Current Rocket Project
ECR is an alternative to ion cyclotron engines (ICR) such as the much touted VASIMR rocket engine. In theory it should be better in a some ways, in particular not using sacrificial electrodes.
Reisz  ECR  electron  cyclotron  resonance  rocket  engine  space  propulsion  alternative  VASIMR  Delicious 
march 2010 by asteroza

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