Jan 3, 2014
Yoichi Ochiai / 落合陽一(The University of Tokyo / 東京大学)
Takayuki Hoshi / 星貴之(Nagoya Institute of Technology / 名古屋工業大学)
Jun Rekimoto / 暦本純一 (The University of Tokyo / Sony CSL)
http://96ochiai.ws/3DOFacoustic
contact: yoichi.ochiai@me.com
The essence of levitation technology is the countervailing of gravity. It is known that an ultrasound standing wave is capable of suspending small particles at its sound pressure nodes and, so far, this method has been used to levitate lightweight particles, small creatures, and water droplets.
The acoustic axis of the ultrasound beam in these previous studies was parallel to the gravitational force, and the levitated objects were manipulated along the fixed axis (i.e. one-dimensionally) by controlling the phases or frequencies of bolted Langevin-type transducers. In the present study, we considered extended acoustic manipulation whereby millimetre-sized particles were levitated and moved three-dimensionally by localised ultrasonic standing waves, which were generated by ultrasonic phased arrays. Our manipulation system has two original features. One is the direction of the ultrasound beam, which is arbitrary because the force acting toward its centre is also utilised. The other is the manipulation principle by which a localised standing wave is generated at an arbitrary position and moved three-dimensionally by opposed and ultrasonic phased arrays. We experimentally confirmed that various materials could be manipulated by our proposed method.
Yoichi Ochiai, Takayuki Hoshi, Jun Rekimoto: Three-dimensional Mid-air Acoustic Manipulation by Ultrasonic Phased Arrays arXiv:1312.4006 [physics.class-ph]
http://arxiv.org/abs/1312.4006
@ARTICLE{2013arXiv1312.4006O,
author = {{Ochiai}, Y. and {Hoshi}, T. and {Rekimoto}, J.}, title = "{Three-dimensional Mid-air Acoustic Manipulation by Ultrasonic Phased Arrays}",
journal = {ArXiv e-prints},
archivePrefix = "arXiv",
eprint = {1312.4006},
primaryClass = "physics.class-ph",
keywords = {Physics - Classical Physics, H.5.2}, year = 2013, month = dec,
adsurl = {http://adsabs.harvard.edu/abs/2013arX...},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
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Three-Dimensional Mid-Air Acoustic Manipulation [Acoustic Levitation] (2013,2014-)
Three-Dimensional Mid-Air Acoustic Manipulation (2013,2014-)Yoichi Ochiai / 落合陽一(The University of Tokyo / 東京大学)
Takayuki Hoshi / 星貴之(Nagoya Institute of Technology / 名古屋工業大学)
Jun Rekimoto / 暦本純一 (The University of Tokyo / Sony CSL)
http://96ochiai.ws/3DOFacoustic
contact: yoichi.ochiai@me.com
The essence of levitation technology is the countervailing of gravity. It is known that an ultrasound standing wave is capable of suspending small particles at its sound pressure nodes and, so far, this method has been used to levitate lightweight particles, small creatures, and water droplets.
The acoustic axis of the ultrasound beam in these previous studies was parallel to the gravitational force, and the levitated objects were manipulated along the fixed axis (i.e. one-dimensionally) by controlling the phases or frequencies of bolted Langevin-type transducers. In the present study, we considered extended acoustic manipulation whereby millimetre-sized particles were levitated and moved three-dimensionally by localised ultrasonic standing waves, which were generated by ultrasonic phased arrays. Our manipulation system has two original features. One is the direction of the ultrasound beam, which is arbitrary because the force acting toward its centre is also utilised. The other is the manipulation principle by which a localised standing wave is generated at an arbitrary position and moved three-dimensionally by opposed and ultrasonic phased arrays. We experimentally confirmed that various materials could be manipulated by our proposed method.
Yoichi Ochiai, Takayuki Hoshi, Jun Rekimoto: Three-dimensional Mid-air Acoustic Manipulation by Ultrasonic Phased Arrays arXiv:1312.4006 [physics.class-ph]
http://arxiv.org/abs/1312.4006
@ARTICLE{2013arXiv1312.4006O,
author = {{Ochiai}, Y. and {Hoshi}, T. and {Rekimoto}, J.}, title = "{Three-dimensional Mid-air Acoustic Manipulation by Ultrasonic Phased Arrays}",
journal = {ArXiv e-prints},
archivePrefix = "arXiv",
eprint = {1312.4006},
primaryClass = "physics.class-ph",
keywords = {Physics - Classical Physics, H.5.2}, year = 2013, month = dec,
adsurl = {http://adsabs.harvard.edu/abs/2013arX...},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
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Dec 29, 2013
God Eternal Within the Body - DNA Encoded Message P2/2
http://www.youtube.com/watch?v=9ojr3t...
The Language of the Divine Matrix Part 1/2
http://www.youtube.com/watch?v=-JiYLR...
The Language of the Divine Matrix Part 2/2
http://www.youtube.com/watch?v=yD8grq...
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God Eternal Within the Body - DNA Encoded Message P1/2
Links below to related topic;God Eternal Within the Body - DNA Encoded Message P2/2
http://www.youtube.com/watch?v=9ojr3t...
The Language of the Divine Matrix Part 1/2
http://www.youtube.com/watch?v=-JiYLR...
The Language of the Divine Matrix Part 2/2
http://www.youtube.com/watch?v=yD8grq...
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Dec 18, 2013
Built, Flown and Filmed by www.Flyonix.com
It was all going to well, until the crash...
Music by:
Murray Gold - Onward!
BBC - Doctor who theme song 2010
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Life size Doctor Who Flying Tardis!
Life size Doctor Who flying Tardis!Built, Flown and Filmed by www.Flyonix.com
It was all going to well, until the crash...
Music by:
Murray Gold - Onward!
BBC - Doctor who theme song 2010
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Oct 15, 2013
Move over, Oculus Rift: Avegant's next-gen "virtual retinal display" projects images directly into your eyeballs. CNET's Tim Stevens checks out the prototype, and gets all the details from Avegant CEO Ed Tang.
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Avegant Virtual Retinal Display: Prototype hands-on
http://cnet.co/GOZMGeMove over, Oculus Rift: Avegant's next-gen "virtual retinal display" projects images directly into your eyeballs. CNET's Tim Stevens checks out the prototype, and gets all the details from Avegant CEO Ed Tang.
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Oct 4, 2013
6 "Digital Life" Hacks, for Strong & Secure Passwords!
In recognition of National Cyber Security Awareness Month, here are 6 tips to making solid passwords, to help protect your digital life. Subscribe
Sep 20, 2013
100 Things iPhone Still Can't Do Complete List: http://goo.gl/0NneHn
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100 Things iPhone 5S - 5C Can't do Android Phones Can
With the new release of the iPhone 5C and the iPhone 5S. Everyone expected something magical with iOS7. But Apple decided to once again play it safe. There is so much Android can do that it is becoming apparent that iOS is no longer a threat. Here is a SMALL list of 100 things that iPhone 5S and 5C running iOS 7 still can't do that most newer Android phones can.100 Things iPhone Still Can't Do Complete List: http://goo.gl/0NneHn
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Sep 18, 2013
Read more at: http://www.rsc.org/chemistryworld/201...
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The "Terminator" polymer: I'll be back
Scientists report the first self-healing thermoset elastomer that requires no intervention to induce its repair. Self-healing polymers mend themselves by reforming broken cross-linking bonds. An industrially familiar, permanently cross-linked poly(urea–urethane) elastomeric network was demonstrated to completely mend itself after being cut in two by a razor blade. It is the metathesis reaction of aromatic disulphides, which naturally exchange at room temperature, that causes regeneration.Read more at: http://www.rsc.org/chemistryworld/201...
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Sep 14, 2013
Find out more about solar energy at www.thesolarspark.co.uk
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Introduction to Quantum Dots
Laurie King at Imperial College London introduces us to quantum dots. Special nanocrystals called quantum dots absorb UV light and emit the energy as visible light in the form of a colour. The colour depends on the size of the quantum dot. Smaller dots are green and larger dots are red. Quantum dots can be used in solar cells as they absorb light from the sun and can also emit the energy as electrical energy.Find out more about solar energy at www.thesolarspark.co.uk
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Sep 10, 2013
Major art include BELIEVE, The Man, French CORE: Stairway to Heaven, Minnesota CORE: The Year the Playa Stood Still, New Orleans CORE: Altar of the Wetlands: Recreating Nature in a Post-Industrial Society, Fractal Planet, The Janky Barge, Truth is Beauty, Coyote, East Bay CORE : First Home, NYC CORE: Star of the City, Like4Real, The Temple of Whollyness, Photo Chapel.
Soundtrack: Elixir by Fingers in the Noise.
https://soundcloud.com/fitn
Shot with a GoPro Hero3 on a DJI Phantom with an Arris CM2000 motorized gimbal.
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Drone's eye view of Burning Man 2013
Some daytime scenes from around the playa at Burning Man 2013. Be sure to watch in HD at full screen for maximum awesomeness!Major art include BELIEVE, The Man, French CORE: Stairway to Heaven, Minnesota CORE: The Year the Playa Stood Still, New Orleans CORE: Altar of the Wetlands: Recreating Nature in a Post-Industrial Society, Fractal Planet, The Janky Barge, Truth is Beauty, Coyote, East Bay CORE : First Home, NYC CORE: Star of the City, Like4Real, The Temple of Whollyness, Photo Chapel.
Soundtrack: Elixir by Fingers in the Noise.
https://soundcloud.com/fitn
Shot with a GoPro Hero3 on a DJI Phantom with an Arris CM2000 motorized gimbal.
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