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An extensive and autonomous deep space navigation system using radio pulsars :: TU Delf... - 4 views

repository.tudelft.nl/...87-2804-4a8b-b192-eb053eca8126 pulsar navigation ariadna science technology phy
shared by Nicholas Lan on 13 Apr 12 - No Cached
LeopoldS liked it
  • Nicholas Lan on 13 Apr 12
     
    Interesting. these guys are apparently gonna try developing pulsar navigation. They propose to solve the low apparent brightness problem using relatively complex signal processing and filtering to limit the antenna size etc. The say they've already had some promising results using ground based data. worth a science coffee perhaps?
  • LeopoldS on 14 Apr 12
     
    Absolutely. Sante can you get in contact with them?
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Company aims to mine resource-rich asteroids - Light Years - CNN.com Blogs - 0 views

lightyears.blogs.cnn.com/...-mine-precious-metals-in-space company mine technology Space
shared by Juxi Leitner on 25 Apr 12 - No Cached
  • Vincent C on 25 Apr 12
     
    For a Few Dollars More ... Except for this debatable purpose, this challenge seems interesting. They've made a presentation at ESTEC one month ago about that topic : http://www.kiss.caltech.edu/study/asteroid/20120314_ESA_ESTEC.pdf By the way, KISS is a funny name for a space institute.
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[1107.5728] The network of global corporate control - 1 views

arxiv.org/1107.5728 economics social_network
shared by pacome delva on 28 Nov 11 - No Cached
  • Abstract: The structure of the control network of transnational corporations affects global market competition and financial stability. So far, only small national samples were studied and there was no appropriate methodology to assess control globally. We present the first investigation of the architecture of the international ownership network, along with the computation of the control held by each global player. We find that transnational corporations form a giant bow-tie structure and that a large portion of control flows to a small tightly-knit core of financial institutions. This core can be seen as an economic "super-entity" that raises new important issues both for researchers and policy makers.
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Wall crawling gecko robots also work in space #ESA - 2 views

www.esa.int/..._robots_can_stick_in_space_too
shared by Thijs Versloot on 13 Jan 14 - No Cached
Juxi Leitner liked it
  • Thijs Versloot on 13 Jan 14
     
    The cooperation took place through ESA's Networking/Partnering Initiative, which supports work carried out by universities and research institutes on advanced technologies with potential space applications.
  • LeopoldS on 15 Jan 14
     
    really nice, especially since it is an idea that started in the team, led to an Ariadna study by Carlo Menon, RF in biomimetics who then got a research position at simon fraser univ, where he created his own biomimetics group menvra (http://menrva.ensc.sfu.ca) there, struggling as an italian in a canadian university doing space and not having access to the US space market ... the NPI was the first contract he got for a space resaerch project ... its fantastic to see his student now making headlines with this idea
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Biomass based fuel cells - 0 views

www.fierceenergy.com/...2014-02-25 energy
shared by Thijs Versloot on 26 Feb 14 - No Cached
  • Thijs Versloot on 26 Feb 14
     
    Despite the benefits of low-temperature fuel cell technologies, they cannot directly use biomass as a fuel because of the lack of an effective catalyst system. However, Georgia Institute of Technology researchers have developed a low-temperature fuel cell that directly converts a wide variety of biomass sources to electricity. Possible application areas are local electricity supply in developing countries
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Robot folds itself up and walks away : Wyss Institute at Harvard - 4 views

wyss.harvard.edu/...folds-itself-up-and-walks-away technology
shared by Marcus Maertens on 08 Aug 14 - No Cached
  • Marcus Maertens on 08 Aug 14
     
    Origami bot!
  • anonymous on 08 Aug 14
     
    It's really cool when it folds up, but then it's such a disappointing walk :) I also fail to see an advantage over regular robots. If you care about saving space during transportation, you could design a robot with that in mind without much sacrifice to it's locomotion capabilities.
  • Paul N on 20 Aug 14
     
    It's cute but I've seen better from amateurs: https://www.youtube.com/watch?v=zK8OjwMdn5I
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Graphene drum could store quantum information - 4 views

physicsworld.com/...ould-store-quantum-information PHY science technology quantum
shared by annaheffernan on 06 Oct 14 - No Cached
  • annaheffernan on 06 Oct 14
     
    Devices made from resonating graphene "drums" could be used as microwave amplifiers and memory chips in quantum computers. So say researchers at the Kavli Institute of Nanoscience at the Delft University of Technology in the Netherlands, who are the first to demonstrate optomechanical coupling between a mechanical resonator and a superconducting microwave cavity.
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Picture This: NVIDIA GPUs Sort Through Tens of Millions of Flickr Photos - 2 views

blogs.nvidia.com/...flickr AI
shared by Alexander Wittig on 21 Jul 15 - No Cached
LeopoldS liked it
  • Alexander Wittig on 21 Jul 15
     
    Strange and exotic cityscapes. Desolate wilderness areas. Dogs that look like wookies. Flickr, one of the world's largest photo sharing services, sees it all. And, now, Flickr's image recognition technology can categorize more than 11 billion photos like these. And it does it automatically. It's called "Magic View." Magical deep learning! Buzzword attack!
  • ...4 more comments...
  • LeopoldS on 21 Jul 15
     
    and here comes my standard question: how can we use this for space? fast detection of natural disasters onboard?
  • Alexander Wittig on 22 Jul 15
     
    Even on ground. You could for example teach it what nuclear reactors or missiles or other weapons you don't want look like on satellite pictures and automatically scan the world for them (basically replacing intelligence analysts).
  • Alexander Wittig on 23 Jul 15
     
    In fact, I think this could make a nice ACT project: counting seals from satellite imagery is an actual (and quite recent) thing: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0092613 In this publication they did it manually from a GeoEye 1 b/w image, which sounds quite tedious. Maybe one can train one of those image recognition algorithms to do it automatically. Or maybe it's a bit easier to count larger things, like elephants (also a thing).
  • jcunha on 23 Jul 15
     
    In HiPEAC (High Performance, embedded architecture and computation) conference I attended in the beginning of this year there was a big trend of CUDA GPU vs FPGA for hardware accelerated image processing. Most of it orbitting around discussing who was faster and cheaper with people from NVIDIA in one side and people from Xilinx and Intel in the other. I remember of talking with an IBM scientist working on hardware accelerated data processing working together with the Radio telescope institute in Netherlands about the solution where they working on (GPU CUDA). I gathered that NVIDIA GPU suits best in applications that somehow do not rely in hardware, having the advantage of being programmed in a 'easy' way accessible to a scientist. FPGA's are highly reliable components with the advantage of being available in radhard versions, but requiring specific knowledge of physical circuit design and tailored 'harsh' programming languages. I don't know what is the level of rad hardness in NVIDIA's GPUs... Therefore FPGAs are indeed the standard choice for image processing in space missions (a talk with the microelectronics department guys could expand on this), whereas GPUs are currently used in some ground based (radio astronomy or other types of telescopes). I think that on for a specific purpose as the one you mentioned, this FPGA vs GPU should be assessed first before going further.
  • Paul N on 29 Jul 15
     
    You're forgetting power usage. GPUs need 1000 hamster wheels worth of power while FPGAs can run on a potato. Since space applications are highly power limited, putting any kind of GPU monster in orbit or on a rover is failed idea from the start. Also in FPGAs if a gate burns out from radiation you can just reprogram around it. Looking for seals offline in high res images is indeed definitely a GPU task.... for now.
  • jcunha on 31 Jul 15
     
    The discussion of how to make FPGA hardware acceleration solutions easier to use for the 'layman' is starting btw http://reconfigurablecomputing4themasses.net/.
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Researchers design metamaterial that buckles selectively - 4 views

phys.org/...5-06-metamaterial-buckles.html PHY space FUN buckling 3D-print
shared by jcunha on 11 Jun 15 - No Cached
  • jcunha on 11 Jun 15
     
    New 3D printed macro structure exhibits selective buckling open the way for custom shape-memory materials found our neighbor scientists from the Lorentz Institut of the Leiden University. Wonder if it can be applied for self-assembled deployment of structures.
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Breakthrough observation of Mott transition in a superconductor - 1 views

www.utwente.nl/...transition-in-a-superconductor technology science superconductors
shared by Thijs Versloot on 14 Sep 15 - No Cached
jcunha liked it
  • Thijs Versloot on 14 Sep 15
     
    An international team of researchers, including the MESA+ Institute for Nanotechnology at the University of Twente in The Netherlands and the U.S. Department of Energy's Argonne National Laboratory, announced today in Science the observation of a dynamic Mott transition in a superconductor.
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Background checking at LHC - 1 views

physics.aps.org/...PhysRevLett.105.022002 phy lhc particles
shared by pacome delva on 12 Jul 10 - Cached
  • pacome delva on 12 Jul 10
     
    and the race begins !
  • Ma Ru on 12 Jul 10
     
    "more than 2000 authors from 166 institutions in 38 countries"... I want to see their papers :-)
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ignobel winners 2010 - 2 views

improbable.com/winners fun
shared by Nicholas Lan on 14 Oct 10 - Cached
  • Nicholas Lan on 14 Oct 10
     
    cheers to luca for pointing out the management one. netlogo model "demonstrating mathematically that organizations would become more efficient if they promoted people at random."
  • ...4 more comments...
  • LeopoldS on 14 Oct 10
     
    do you trust netlogo for this? :-)
  • nikolas smyrlakis on 14 Oct 10
     
    for the ignobel or the random promotions ? :P
  • Ma Ru on 14 Oct 10
     
    Nah... Marek's recognition reward definitively goes to: "Microbiological Laboratory Hazard of Bearded Men" (...) WHO ATTENDED THE CEREMONY: Manuel S. Barbeito was unable to travel, due to health reasons. :D
  • jmlloren on 15 Oct 10
     
    The page itself should be awarded with the ugliest layout. I have suggested to our management the implementation of the random promotion. Perhaps it is the future of democracy: representatives chosen at random.
  • LeopoldS on 15 Oct 10
     
    you mean "your management" at your current place?
  • jmlloren on 15 Oct 10
     
    Yes, it is not what is written? Indeed, it is already implemented. You are talking with the director of the Institute. I have been unlucky with the toss.
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American Institute of Aeronautics and Astronautics - Space and the Biological Economy - 0 views

www.aiaa.org/content.cfm BIO MAD space science
shared by Joris _ on 11 Oct 10 - No Cached
  • the U.S. space program has a robust life science program that is diligently working to innovate new approaches, research and technologies in the fields of biotechnology and bio-nanotechnology science, which are providing new solutions for old problems – including food security, medical needs and energy needs
  • more money be allocated to develop environmentally sound and energy efficient engine programs for commercial and private aviation
  • waste water program
  • ...3 more annotations...
  • we lack fundamental knowledge about the entire effect of the photosynthesis system on food growth, and that space-based research could provide vital clues to scientists on how to streamline the process to spur more efficient food growth
  • From the start of the space age until 2010 only around 500 people have journeyed into space, but with the advent of private space travel in the next 24 months another 500 people are expected to go into space
  • Wagner indentified prize systems that award monetary prizes to companies or individuals as an effective way to spur innovation and creativity, and urged the Congressional staffers present to consider creating more prize systems to stimulate needed innovation
  • Joris _ on 11 Oct 10
     
    a bunch of ideas, iinitiatives, and good points about upcoming changes in space ...
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American Institute of Aeronautics and Astronautics - New Horizons Challenge - 5 views

www.aiaa.org/content.cfm
shared by Joris _ on 16 Nov 10 - No Cached
Juxi Leitner liked it
  • Joris _ on 16 Nov 10
     
    the ACT should participate, a least someone in it, ...
  • LeopoldS on 16 Nov 10
     
    seems as if they are lacking ideas ?? :-) and honestly: "The Grand Prize Winner will be announced 6 January and will receive $500 plus a one year, on-line subscription to the AIAA Journal of their choice. Two runner-up winners will each receive $250 and a one year, on-line subscription to the AIAA Journal of their choice." ... :-)
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Violation of local realism with freedom of choice - PNAS - 4 views

www.pnas.org/...1002780107 science PHY space
shared by LeopoldS on 01 Nov 10 - No Cached
  • LeopoldS on 01 Nov 10
     
    another Zeilinger experiment ...
  • Luzi Bergamin on 02 Nov 10
     
    And what if the freedom-of-choice is corrupted due to yet another hidden variable in past lightcone of the whole experiment that triggers Alice and Bob's choice as well as the pair creation? Then we can design yet another experiment that will have yet another loophole. I guess this is experimentally interesting work, but the introduction rather reads like an article from the "Institut für Grenzgebiete der Psychologie und Psychohygiene"...
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IISC - International Institute of Space Commerce - 5 views

www.iisc.im/publications.asp reports science engineering space
shared by LeopoldS on 07 Jan 10 - Cached
Nicholas Lan liked it
  • LeopoldS on 07 Jan 10
     
    interesting collection / source of reports linked to space ...
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DIME | Dynamics of Institutions and Markets in Europe - 4 views

www.dime-eu.org CMS dynamics innovation economics europe
shared by nikolas smyrlakis on 09 Mar 10 - Cached
  • nikolas smyrlakis on 09 Mar 10
     
    an active and open community for whoever interested and the new YGTs RFs in Innovation/ Economics/ CMS etc.
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Electronic Nose Knows a Good Smell - 1 views

news.sciencemag.org/...nic-nose-knows-a-good-sme.html ai smell enose
shared by pacome delva on 16 Apr 10 - Cached
LeopoldS liked it
  • Most of these devices have been able to identify and distinguish only between specific odors they've previously been trained to recognize, however, says neuroscientist Rafi Haddad of the Weizmann Institute of Science in Rehovot, Israel. If an artificial nose is ever to replace the real thing, he says, it will have to be able to classify odors it has never encountered before.
  • pacome delva on 16 Apr 10
     
    for Eduardo !
  • Eduardo Martin Moraud on 16 Apr 10
     
    Smells awesome! Thanks dude...
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Synthetic Genome Brings New Life to Bacterium - 0 views

www.sciencemag.org/...958 bio genomics ethics
shared by pacome delva on 21 May 10 - Cached
LeopoldS liked it
  • For 15 years, J. Craig Venter has chased a dream: to build a genome from scratch and use it to make synthetic life. Now, he and his team at the J. Craig Venter Institute (JCVI) in Rockville, Maryland, and San Diego, California, say they have realized that dream.
  • "One thing is sure," Boeke says. "Interesting creatures will be bubbling out of the Venter Institute's labs."
  • pacome delva on 21 May 10
     
    wow, a big step in genomics...!
  • Ma Ru on 21 May 10
     
    But isn't it just yet another word abuse? From what I understand, they just synthesised a genome identical to the one of an existing bacteria... while undoubtedly nice work, this is *very* far from "creating life from scratch"... The fact that you are able to copy something, doesn't mean you understand how it works...
  • pacome delva on 27 May 10
     
    well of course we are far from engineering specific functions, and this is just a copy of a function that already existed. However it is quite impressive and the first time it is done. And the challenge here is not really to "copy" the ADN, but the fact that it works... in other words it is not because you copy the ADN identically that the phenotype (traduction of the ADN) will be the same, which is the case in this experiment.
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