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ESA ACT

Magnetically responsive elastic microspheres - 0 views

scitation.aip.org/...GetabsServlet

NAN BIO technology

shared by ESA ACT on 24 Apr 09 - No Cached
  • ESA ACT on 24 Apr 09
     
    Microspheres can behave as a smart material controllable through an external magnetic field. Owing to the transparency, biocompatibility and nontoxicity of PDMS, the magnetically responsive elastic microspheres may have potential applications in drug deli
ESA ACT

Development of a direct three-dimensional biomicrofabrication concept based on electros... - 0 views

scitation.aip.org/...GetabsServlet

BIO microfabrication

shared by ESA ACT on 24 Apr 09 - No Cached
  • ESA ACT on 24 Apr 09
     
    Sounds cool. Needs application.
ESA ACT

Nanonets Snare Energy - 0 views

www.technologyreview.com/...21355

nan solar power energy

shared by ESA ACT on 24 Apr 09 - Cached
  • ESA ACT on 24 Apr 09
     
    I couldn't find a copy of the actual paper. Is this useful for space applications?
Tobias Seidl

Global Futures Studies & Research by the MILLENNIUM PROJECT - 0 views

www.millennium-project.org

LTP futures future studies foresight crowdsourcing

shared by Tobias Seidl on 13 Jul 09 - Cached
  • Tobias Seidl on 13 Jul 09
     
    The Millennium Project is a global participatory futures research think tank of futurists, scholars, business planners, and policy makers who work for international organizations, governments, corporations, NGOs, and universities. The Millennium Project manages a coherent and cumulative process that collects and assesses judgements from its several hundred participants to produce the annual "State of the Future", "Futures Research Methodology" series, and special studies such as the State of the Future Index, Future Scenarios for Africa, Lessons of History, Environmental Security, Applications of Futures Research to Policy, and a 700+ annotated scenarios bibliography.
  • LeopoldS on 14 Jul 09
     
    very nice page - we should use some of its resources!!
ESA ACT

Smartlighting ERC | Free space communications | Photonics | LED | Wireless | CISE | BU - 0 views

smartlighting.bu.edu

internet wireless LED communications

shared by ESA ACT on 24 Apr 09 - Cached
  • ESA ACT on 24 Apr 09
     
    application for space? maybe ISS? -LS
ESA ACT

How to Sync Any Desktop Calendar with Google Calendar | Lifehacker Australia - 0 views

www.lifehacker.com.au/...ar_with_google_calendar-2.html

google calendar sync gcal activities CollaborativeWork

shared by ESA ACT on 24 Apr 09 - Cached
  • ESA ACT on 24 Apr 09
     
    This could be the killer application for Leopold: Keeping iCal and google calendar in sync and maybe there is even a lotus notes sync???
ESA ACT

SUSE Studio - 0 views

www.susestudio.com

INF linux

shared by ESA ACT on 24 Apr 09 - Cached
  • ESA ACT on 24 Apr 09
     
    Create a tuned server appliance, containing your application and just enough operating system components
LeopoldS

BibDesk to Word: Integrating References - 0 views

warp.byu.edu/BibDeskToWord

INF latex bibtex bibliography

shared by LeopoldS on 15 May 09 - Cached
  • LeopoldS on 15 May 09
     
    nice application for mac users to use Bibdesk integrated into MS word ... still have some problems with the template file but hope to solve this soon ....
ESA ACT

Flow improvement caused by traffic-rule ignorers - 0 views

arxiv.org/0901.3513

paper ai inf algorithm

shared by ESA ACT on 24 Apr 09 - Cached
  • ESA ACT on 24 Apr 09
     
    Interesting point, could we find other applications of rogue algorithms that may perform better than classically well-behaved ones?
ESA ACT

Materials and noncoplanar mesh designs for integrated circuits with linear elastic resp... - 0 views

www.pnas.org/...18675.full

NAN biomedicine

shared by ESA ACT on 24 Apr 09 - Cached
  • ESA ACT on 24 Apr 09
     
    Next astronaut suit: Electronic systems that offer elastic mechanical responses to high-strain deformations are of growing interest because of their ability to enable new biomedical devices and other applications whose requirements are impossible to satis
ESA ACT

LE WEB 3 - 0 views

www.leweb3.com

web2.0

shared by ESA ACT on 24 Apr 09 - Cached
  • ESA ACT on 24 Apr 09
     
    check the winners of the start-up competition 12th dec 07: 1st place - Goojet ( facilitates implementing web applications on cellular phones) 2nd place - PLYMedia (gives videos some "semantic" content) 3rd place - G.ho.st (virtual pc everywhere whenev
ESA ACT

WikipediaVision (beta) - 0 views

www.lkozma.net/index.html

online social web2.0 Wiki

shared by ESA ACT on 24 Apr 09 - Cached
  • ESA ACT on 24 Apr 09
     
    Mash-up application: see on Google Earth who contributes to Wikipedia
LeopoldS

Global Innovation Commons - 4 views

www.globalinnovationcommons.org

innovation open IP

shared by LeopoldS on 31 Oct 09 - Cached
LeopoldS liked it
  • LeopoldS on 31 Oct 09
     
    nice initiative!
  • ...6 more comments...
  • Ma Ru on 31 Oct 09
     
    Any viral licence is a bad license...
  • Francesco Biscani on 31 Oct 09
     
    I'm pretty confident I'm about to open a can of worms, but mind explaining why? :)
  • LeopoldS on 01 Nov 09
     
    I am less worried about the can of worms ... actually eager to open it ... so why????
  • Francesco Biscani on 01 Nov 09
     
    Well, the topic GPL vs other open-source licenses (e.g., BSD, MIT, etc.) is old as the internet and it has provided material for long and glorious flame wars. The executive summary is that the GPL license (the one used by Linux) is a license which imposes some restrictions on the way you are allowed to (re)use the code. Specifically, if you re-use or modify GPL code and re-distribute it, you are required to make it available again under the GPL license. It is called "viral" because once you use a bit of GPL code, you are required to make the whole application GPL - so in this sense GPL code replicates like a virus. On the other side of the spectrum, there are the so-called BSD-like licenses which have more relaxed requirements. Usually, the only obligation they impose is to acknowledge somewhere (e.g., in a README file) that you have used some BSD code and who wrote it (this is called "attribution clause"), but they do not require to re-distribute the whole application under the same license. GPL critics usually claim that the license is not really "free" because it does not allow you to do whatever you want with the code without restrictions. GPL proponents claim that the requirements imposed by the GPL are necessary to safeguard the freedom of the code, in order to avoid being able to re-use GPL code without giving anything back to the community (which the BSD license allow: early versions of Microsoft Windows, for instance, had the networking code basically copy-pasted from BSD-licensed versions of Unix). In my opinion (and this point is often brought up in the debates) the division pro/against GPL mirrors somehow the division between anti/pro anarchism. Anarchists claim that the only way to be really free is the absence of laws, while non-anarchist maintain that the only practical way to be free is to have laws (which by definition limit certain freedoms). So you can see how the topic can quickly become inflammatory :) GPL at the current time is used by aro
  • Francesco Biscani on 01 Nov 09
     
    whoa, the comment got cut off. Anyway, I was just saying that at the present time the GPL license is used by around 65% of open source projects, including the Linux kernel, KDE, Samba, GCC, all the GNU utils, etc. The topic is much deeper than this brief summary, so if you are interested in it, Leopold, we can discuss it at length in another place.
  • LeopoldS on 01 Nov 09
     
    Thanks for the record long comment - am sure that this is longest ever made to an ACT diigo post! On the topic, I would rather lean for the GPL license (which I also advocated for the Marek viewer programme we put on source forge btw), mainly because I don't trust that open source is by nature delivering a better product and thus will prevail but I still would like to succeed, which I am not sure it would if there were mainly BSD like licenses around. ... but clearly, this is an outsider talking :-)
  • LeopoldS on 01 Nov 09
     
    btw: did not know the anarchist penchant of Marek :-)
  • Ma Ru on 01 Nov 09
     
    Well, not going into the discussion about GPL/BSD, the viral license in this particular case in my view simply undermines the "clean and clear" motivations of the initiative authors - why should *they* be credited for using something they have no rights for? And I don't like viral licences because they prevent using things released under this licence to all those people who want to release their stuff under a different licence, thus limiting the usefulness of the stuff released on that licence :) BSD is not a perfect license too, it also had major flaws And I'm not an anarchist, lol
Isabelle Dicaire

Testing of a femtosecond pulse laser in outer space : Scientific Reports : Nature Publi... - 2 views

www.nature.com/...srep05134.html

shared by Isabelle Dicaire on 16 Jan 15 - No Cached
  • Isabelle Dicaire on 16 Jan 15
     
    Good news for fundamental physics and Earth system science, femtosecond lasers are now about to achieve space qualification thanks to fibre optics!  Applications include high resolution spectroscopy, absolute laser ranging, mapping of the geo-potential and testing of the theory of general relativity to name a few!
  • LeopoldS on 17 Jan 15
     
    nice paper by the Koreans, did not know that they had already such a laser in orbit for a year. How much would this type be upscalable for our needs? in case we have not, we should reference it
annaheffernan

Filamentous laser beams point to new type of phase transition - applications in weather... - 2 views

physicsworld.com/...o-new-type-of-phase-transition

technology science PHY earthscience

shared by annaheffernan on 02 Mar 15 - No Cached
LeopoldS liked it
  • annaheffernan on 02 Mar 15
     
    Filaments of plasma created by a high-powered laser beam undergo a similar type of phase transition as liquid percolating through a porous material - that is the conclusion of physicists in Switzerland. The also describe the application of laser filamentation for directed lightening and encouraged rainfall - Isabelle should come back to take a closer look :p
  • LeopoldS on 11 Mar 15
     
    Christophe? Isabelle?
jcunha

Wireless 10 kW power transmission - 1 views

phys.org/...n-firm-small-solar-energy.html

technology space PHY energy wireless

shared by jcunha on 17 Mar 15 - No Cached
  • jcunha on 17 Mar 15
     
    Mitsubishi Heavy Industries said Friday that it has succeeded in transmitting 10 kW of power through 500 m. An announcement that comes just after JAXA scientists reported one more breakthrough in the quest for Space Solar Power Systems (http://phys.org/news/2015-03-japan-space-scientists-wireless-energy.html). One step closer to Power Generation from Space/
  • Thijs Versloot on 17 Mar 15
     
    from the press release (https://www.mhi-global.com/news/story/1503121879.html) "10 kilowatts (kW) of power was sent from a transmitting unit by microwave. The reception of power was confirmed at a receiver unit located at a distance of 500 meters (m) away by the illumination of LED lights, using part of power transmitted". So 10kW of transmission to light a few efficient LED lights??? In a 2011 report (https://www.mhi-global.com/company/technology/review/pdf/e484/e484017.pdf), MHI estimated this would generate the same electricity output as a 400-megawatt thermal plant - or enough to serve more than 150,000 homes during peak hours. The price? The same as publicly supplied power, according to its calculations. There are no results to boost these claims however. The main work they do now is focused on beam steering control. I guess the real application in mind is more targeted to terrestrial applications, eg wireless highway charging (http://www.bbc.com/future/story/20120312-wireless-highway-to-charge-cars). With the distances so much shorter, leading to much smaller antenna's and rectenna's this makes much more sense to me to develop.
Athanasia Nikolaou

NASA Vesta Trek - 2 views

vestatrek.jpl.nasa.gov

space science FUN

shared by Athanasia Nikolaou on 01 Apr 15 - No Cached
  • Athanasia Nikolaou on 01 Apr 15
     
    NASA Releases Tool Enabling Citizen Scientists to Examine Asteroid Vesta Vesta Trek is a free, web-based application that provides detailed visualizations of Vesta, one of the largest asteroids in our solar system. NASA's Dawn spacecraft studied Vesta from July 2011 to September 2012. Data gathered from multiple instruments aboard Dawn have been compiled into Vesta Trek's user-friendly set of tools, enabling citizen scientists and students to study the asteroid's features. The application includes: -- Interactive maps with the ability to overlay a growing range of data sets including topography, mineralogy, abundance of elements and geology, as well as analysis tools for measuring the diameters, heights and depths of surface features and more. -- 3-D printer-exportable topography so users can print physical models of Vesta's surface. -- Standard keyboard gaming controls to manoever a first-person visualization of "flying" across the surface of the asteroid. "There's nothing like seeing something with your own eyes, but these types of detailed data-visualizations are the next best thing," said Kristen Erickson, Director, Science Engagement and Partnerships at NASA Headquarters in Washington DC.
LeopoldS

Boeing Patents a Force Field System to Block Explosions - 2 views

thenextweb.com/...itary-vehicles-from-explosions

laser filamentation

shared by LeopoldS on 23 Mar 15 - No Cached
  • LeopoldS on 23 Mar 15
     
    looks like an application of laser filamentation ...
LeopoldS

breaktrough in supercaps - 2 views

spectrum.ieee.org/...supercharge-mobile-electronics

shared by LeopoldS on 01 Oct 15 - No Cached
  • LeopoldS on 01 Oct 15
     
    is this the breaktrough that we were waiting for?
  • Thijs Versloot on 02 Oct 15
     
    That depends on what application you are thinking of. For circuit board electronics this will allow integration of micro sized supercapacitors to provide operational power. They will have to be fed by external batteries still, but the close proximity allows for better tailored power demands. They also propose tapping into thermal/mechanical energy to charge the supercaps. In the end, they can provide significant specific power (W/kg) but you still need to upscale the production to cover large areas to also gain high specific energy (Wh/kg). This breakthough is for micro sized applications, not for replacement of large scale energy storage (electric vehicles, satellites) going up to kWh. That said, I know of several studies in supercaps at ESA, but they are still qualifying current relatively old commercial solutions.
jaihobah

The Nanodevice Aiming to Replace the Field Effect Transistor - 2 views

www.technologyreview.com/...ce-the-field-effect-transistor

transistor PHY technology

shared by jaihobah on 03 Feb 16 - No Cached
LeopoldS liked it
  • LeopoldS on 08 Feb 16
     
    very nice! "For a start, the wires operate well as switches that by some measures compare well to field effect transistors. For example they allow a million times more current to flow when they are on compared with off when operating at a voltage of about 1.5 V. "[A light effect transistor] can replicate the basic switching function of the modern field effect transistor with competitive (and potentially improved) characteristics," say Marmon and co. But they wires also have entirely new capabilities. The device works as an optical amplifier and can also perform basic logic operations by using two or more laser beams rather than one. That's something a single field effect transistor cannot do."
  • ...1 more comment...
  • jcunha on 09 Feb 16
     
    The good thing about using CdSe NW (used here) is that they show a photon-to-current efficiency window around the visible wavelengths, therefore any visible light can in principle be used in this application to switch the transistor on/off. I don't agree with the moto "Nanowires are also simpler than field effect transistors and so they're potentially cheaper and easier to make." Yes, they are simple, yet for applications, fabricating devices with them consistently is very challenging (being the research effort not cheap at all..) and asks for improvements and breakthroughs in the fabrication process.
  • LeopoldS on 09 Feb 16
     
    any idea how the shine the light selectively to such small surfaces?
  • jcunha on 10 Feb 16
     
    "Illumination sources consisted of halogen light, 532.016, 441.6, and 325 nm lasers ported through a Horiba LabRAM HR800 confocal Raman system with an internal 632.8 nm laser. Due to limited probe spacing for electrical measurements, all illumination sources were focused through a 50x long working distance (LWD) objective lens (N.A. = 0.50), except 325 nm, which went through a 10x MPLAN objective lens (N.A. = 0.25)." Laser spot size calculated from optical diffraction formula 1.22*lambda/NA
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