Skip to main content

Home/ Advanced Concepts Team/ Group items tagged email

Rss Feed Group items tagged

Filter: All | Bookmarks | Topics Simple Middle
Tom Gheysens

Computer searches web 24/7 to analyze images and teach itself common sense - 0 views

www.sciencedaily.com/...131120111956.htm

computer web science technology AI

shared by Tom Gheysens on 21 Nov 13 - No Cached
  • Tom Gheysens on 21 Nov 13
     
    Now this is a step in the right direction of the discussion we had in one of the wednesday meetings "thoughts of a biologist part 1" :)
Tom Gheysens

'Spooky action' builds a wormhole between 'entangled' quantum particles - 2 views

www.sciencedaily.com/...131203161549.htm

science space quantum particles action

shared by Tom Gheysens on 04 Dec 13 - No Cached
  • Tom Gheysens on 04 Dec 13
     
    anna, this is your shit ;) ...and they mentione albert einstein so it has to be an intelligent and good finding :)
  • ...2 more comments...
  • Thijs Versloot on 04 Dec 13
     
    Somewhat longer explanation.. I am still completely ignorant on this level.. http://news.sciencemag.org/physics/2013/12/link-between-wormholes-and-quantum-entanglement
  • annaheffernan on 05 Dec 13
     
    Yeah I've actually been reading up on this - its linked to a previous post by Thijs on experiments NASA are carrying out with quantum teleportation.
  • LeopoldS on 09 Dec 13
     
    and?
  • LeopoldS on 12 Dec 13
     
    and?
Tom Gheysens

New theory of synapse formation in the brain - 2 views

www.sciencedaily.com/...131010205325.htm

Bio science AI brain

shared by Tom Gheysens on 14 Oct 13 - No Cached
  • Tom Gheysens on 14 Oct 13
     
    I have no idea if an algorithm based on this already exists, but it would certainly be a good one for autonomous AI, I think. I think an algorithm based on this should be able to select his own input parameters and reject them if they are not stimulated any further or integrate them in the algorithm if they are continiously stimulated... this could enable self learning, etc.
  • johannessimon81 on 14 Oct 13
     
    By steering the neuron's back to an intermediate activity level the mechanism probably optimizes their efficiency within the network (after all a neuron that fires all the time is just as useless as one that never fires).
Tom Gheysens

Revolutionizing solar energy: Quantum waves found at the heart of organic solar cells - 1 views

www.sciencedaily.com/...131212142059.htm

quantum energy organic cells BIO

shared by Tom Gheysens on 13 Dec 13 - No Cached
LeopoldS liked it
  • Tom Gheysens on 13 Dec 13
     
    pretty interesting! I am still convinced we can do something in this :)
  • Thijs Versloot on 18 Dec 13
     
    There surely must be possibilities indeed, maybe we should expand it to an RF? By coincidence, I bumped into a quantum optics PhD looking for a post-doc, who would love to give a talk in the team on his research (although very different topic) and I invited him for early January.
Tom Gheysens

Scientists discover double meaning in genetic code - 4 views

www.sciencedaily.com/...131212142151.htm

code BIO science

shared by Tom Gheysens on 13 Dec 13 - No Cached
  • Tom Gheysens on 13 Dec 13
     
    Does this have implications for AI algorithms??
  • ...1 more comment...
  • Marcus Maertens on 13 Dec 13
     
    Somehow, the mere fact does not surprise me. I always assumed that the genetic information is on multiple overlapping layers encoded. I do not see how this can be transferred exactly on genetic algorithms, but a good encoding on them is important and I guess that you could produce interesting effects by "overencoding" of parameters, apart from being more space-efficient.
  • johannessimon81 on 16 Dec 13
     
    I was actually thinking exactly about this question during my bike ride this morning. I am surprised that some codons would need to have a double meaning though because there is already a surplus of codons to translate into just 20-22 proteins (depending on organism). So there should be about 44 codons left to prevent translation errors and in addition regulate gene expression. If - as the article suggests - a single codon can take a dual role, does it so in different situations (needing some other regulator do discern those)? Or does it just perform two functions that always need to happen simultaneously? I tried to learn more from the underlying paper: https://www.sciencemag.org/content/342/6164/1367.full.pdf All I got from that was a headache. :-\
  • Paul N on 16 Dec 13
     
    Probably both. Likely a consequence of energy preservation during translation. If you can do the same thing with less genes you save up on the effort required to reproduce. Also I suspect it has something to do with modularity. It makes sense that the gene regulating for "foot" cells also trigger the genes that generate "toe" cells for example. No point in having an extra if statement.
Tom Gheysens

Chernobyl's birds adapting to ionizing radiation -- ScienceDaily - 0 views

www.sciencedaily.com/...140424223057.htm

chernobyl birds radiation BIO science space PHY

shared by Tom Gheysens on 29 Apr 14 - No Cached
  • Tom Gheysens on 29 Apr 14
     
    birds in the exclusion zone around Chernobyl are adapting to -- and may even be benefiting from -- long-term exposure to radiation, ecologists have found. The study, published in the British Ecological Society's journal Functional Ecology, is the first evidence that wild animals adapt to ionizing radiation, and the first to show that birds which produce most pheomelanin, a pigment in feathers, have greatest problems coping with radiation exposure.
Tom Gheysens

Vitamin B3 might have been made in space, delivered to Earth by meteorites -- ScienceDaily - 0 views

www.sciencedaily.com/...140417191742.htm

BIO science space

shared by Tom Gheysens on 22 Apr 14 - No Cached
  • Tom Gheysens on 22 Apr 14
     
    Ancient Earth might have had an extraterrestrial supply of vitamin B3 delivered by carbon-rich meteorites, according to a new analysis. The result supports a theory that the origin of life may have been assisted by a supply of key molecules created in space and brought to Earth by comet and meteor impacts.
Tom Gheysens

The Moroccan flic-flac spider: A gymnast among the arachnids -- ScienceDaily - 5 views

www.sciencedaily.com/...140428074422.htm

BIO science space PHY

shared by Tom Gheysens on 29 Apr 14 - No Cached
  • Tom Gheysens on 29 Apr 14
     
    New form of locomotion found in spiders. They say it could be used for a robot on Mars...don't immediately see how though. :)
  • ...2 more comments...
  • Ma Ru on 29 Apr 14
     
    Before it gets out of control... I hope you realise that quoting "Science Daily" in the context of science is pretty much like using Daily Mail as your reference news agency?
  • johannessimon81 on 29 Apr 14
     
    I was just going to post the same story. Here is BTW a video of the intended type of robot: https://www.youtube.com/watch?v=OHo32JrkDRk&feature=youtu.be
  • Dario Izzo on 02 May 14
     
    True Marek :) The article does quote a Journal Paper though ..... published in zootaxa: a staggering 0.9 impact factor journal!! And watching the video you immediately understand why :)
  • Ma Ru on 07 May 14
     
    I of course watched the video and have trouble sleeping since.
Tom Gheysens

Microbes provide insights into evolution of human language -- ScienceDaily - 1 views

www.sciencedaily.com/...140423221420.htm

language human insights BIO science AI

shared by Tom Gheysens on 25 Apr 14 - No Cached
  • Tom Gheysens on 25 Apr 14
     
    I think this is something we/the group can work on for languages? The finding opens the road for simulations I think so can we do something with this? 
Tom Gheysens

Gut bacteria that protect against food allergies identified -- ScienceDaily - 5 views

www.sciencedaily.com/...140825152016.htm

gut bacteria food allergies

shared by Tom Gheysens on 27 Aug 14 - No Cached
  • Tom Gheysens on 27 Aug 14
     
    YEEHA! looks like there is hope for me after all! :)
  • Ma Ru on 28 Aug 14
     
    > looks like there is hope for me after all! Not really, if you believe ScienceDaily headlines...
Tom Gheysens

Direct brain-to-brain communication demonstrated in human subjects -- ScienceDaily - 2 views

www.sciencedaily.com/...140903105646.htm

human technology science space bio

shared by Tom Gheysens on 04 Sep 14 - No Cached
  • Tom Gheysens on 04 Sep 14
     
    In a first-of-its-kind study, an international team of neuroscientists and robotics engineers has demonstrated the viability of direct brain-to-brain communication in humans.
  • Thijs Versloot on 04 Sep 14
     
    Was just about to post it... :) It seems after transferring the EEG signals of one person, converting it to bits and stimulating some brain activity using magnetic stimulation (TMS) the receiving person actually sees 'flashes of light' in their peripheral vision. So its using your vision sense to get the information across. Would it not be better to try to see if you can generate some kind of signal in the part of your brain that is connected to 'hearing'? Or would this be me thinking too naive?
  • Ma Ru on 05 Sep 14
     
    "transferring the EEG signals of one person, converting it to bits and stimulating some brain activity using magnetic stimulation (TMS)" How is this "direct"?
Tom Gheysens

Mapping the spider genome: Surprising similarities to humans -- ScienceDaily - 1 views

www.sciencedaily.com/...140507105031.htm

spider humans fun

shared by Tom Gheysens on 08 May 14 - No Cached
  • Tom Gheysens on 08 May 14
     
    Looks like we are all spider men and women :)
Thijs Versloot

Innovative solutions based on Earth Observation data #copernicus @esa - 2 views

www.copernicus-masters.com/?utm_source=Space+Business+Innovation+Centre+Noordwijk&utm_campaign=53961e8da5-SBIC_Noordwijk_Newsletter3_24_2015&utm_medium=email&utm_term=0_3c7f1b9f07-53961e8da5-343650433

shared by Thijs Versloot on 01 May 15 - No Cached
  • Thijs Versloot on 01 May 15
     
    The Earth Monitoring Competition is annually awarding prizes to innovative solutions for business and society based on Earth observation data.
jcunha

NASA challenges designers to construct habitat for deep space exploration - 3 views

phys.org/...at-deep-space-exploration.html

technology architech competition FUN 3D printer

shared by jcunha on 19 May 15 - No Cached
  • jcunha on 19 May 15
     
    NASA is setting a $2.25 million competition to design and build a 3-D printed habitat for deep space exploration - new task for the future architect of the team?
  • Paul N on 26 May 15
     
    I kind of like Thijs's space mirror ablation method as a way of printing :))
johannessimon81

World's largest OTEC power plant planned for China - 1 views

www.gizmag.com/...27164

technology NRG

shared by johannessimon81 on 19 Jun 13 - No Cached
LeopoldS liked it
  • johannessimon81 on 19 Jun 13
     
    I wonder how much energy you can extract from the ocean in a responsible way... Mixing up different thermal layers would probably a quite an influence on ecology.
  • Isabelle Dicaire on 20 Jun 13
     
    The last available assessment report on the ecological impact seems to date from 1981 which would need to be brought up to current standards. On the other hand, this system could have a positive influence on fish population as deep cold water brings nutrients to the surface. The cold water could also be used to lower sea surface temperatures and affect hurricane genesis!
johannessimon81

IBM Speech Recognition, 1986 - 0 views

www.wired.com/...bms-speech-savvy-computer-1986

AI technology

shared by johannessimon81 on 09 Nov 13 - No Cached
  • johannessimon81 on 09 Nov 13
     
    Interesting historical perspective. Progress since the late '80 really seems to be fairly slow. ?: Do we need to wait for the singularity until speech recognition works without flaws?
  • ...1 more comment...
  • LeopoldS on 09 Nov 13
     
    funny - tried just yesterday the one built in on mavericks: sending one email took three times as long at least as typing it And now my speech PowerPoint Funny, trade trust yesterday they're built in speech recognition in Mavericks sending one e-mail to at least three times a talk as long as typing it. Well this was actually quite okay and relatively fast cheers nice evening
  • johannessimon81 on 13 Nov 13
     
    "I thought I would give it a try on my android sexy seems to work pretty well and I'm speaking more less at normal speed" Actually I was speaking as fast as I could because it was for the google search input - if you make a pause it will think you finished your input and start the query. Also you might notice that Android thinks it is "android sexy" - this was meant to be "on my Android. THIS seems to work...". Still it is not too bad - maybe in a year or two they have it working. Of course it might also be that I just use the word "sexy" randomly... :-\
  • Paul N on 13 Nov 13
     
    The problem is that we don't yet understand how speech in humans actually works. As long as we merely build either inference or statistical language models we'll never get perfect speech recognition. A lot of recognition in humans has a predictive/expectational basis to it that stems from our understanding of higher lvl concepts and context awareness. Sadly I suspect that as long as machines remain unembodied in their perceptual abilities their ability to either properly recognize sounds/speech or objects and other features will never reach perfection.
Alexander Wittig

SpaceX founder files with government to provide Internet service from space - 0 views

www.washingtonpost.com/...5-a0dc-2b6f404ff5cf_story.html

technology space

shared by Alexander Wittig on 11 Jun 15 - No Cached
LeopoldS liked it
  • Alexander Wittig on 11 Jun 15
     
    Elon Musk is moving forward with space based internet service...
  • ...3 more comments...
  • Alexander Wittig on 11 Jun 15
  • LeopoldS on 11 Jun 15
     
    reading the qz article, it is not clear to me that google dropped out as one of the main investors in SpaceX? did I miss something?
  • jcunha on 12 Jun 15
     
    I attended a presentation by H. Hemmati, formerly at NASA's JPL, now at Facebook working to "connect the unconnected" during a panel session of the Workshop "Shining light on future space optical communications". I gather that they are targeting a combined strategy of HAP (with solar powered planes at 20-25 km), balloons and satellites. The rationale behind is that each solution is best suited for different population density zones, i.e. satellites while expensive (total cost of 100MUSD after Hemmati) are the only way to provide internet in remote zones, while balloons seem to be one inexpensive solution for densely populated areas. Funfact: he mentioned that the main drawback will be some crashes of HAP elements...
  • jcunha on 31 Jul 15
     
    Facebook announced they are ready to test of of their High Altitude Platform element, a drone of the size of a Boeing 737. See the new here http://phys.org/news/2015-07-facebook-ready-giant-drone-internet.html?utm_source=nwletter&utm_medium=email&utm_content=ctgr-item&utm_campaign=daily-nwletter. It seemed interesting for me that they are developing also a reliable optical communication between this element and scattered ground stations.
  • Thijs Versloot on 31 Jul 15
     
    Nice link, that thing is huge and I would love to see a drone that size fly. Also, Facebook's Aerospace Team? :)
Dario Izzo

Optimal Control Probem in the CR3BP solved!!! - 7 views

math.u-bourgogne.fr/...research

OCP CR3BP trajectory MAD

shared by Dario Izzo on 07 Jun 11 - No Cached
  • Dario Izzo on 07 Jun 11
     
    This guy solved a problem many people are trying to solve!!! The optimal control problem for the three body problem (restricted, circular) can be solved using continuation of the secondary gravity parameter and some clever adaptation of the boundary conditions!! His presentation was an eye opener ... making the work of many pretty useless now :)
  • ...13 more comments...
  • Ma Ru on 08 Jun 11
     
    Riemann hypothesis should be next... Which paper on the linked website is this exactly?
  • Joris _ on 08 Jun 11
     
    hmmm, last year at the AIAA conference in Toronto I presented a continuation approach to design a DRO (three-body problem). Nothing new here unfortunately. I know the work of Caillau, although interesting what is presented was solved 10 years ago by others. The interest of his work is not in the applications (CR3BP), but in the research of particular regularity conditions that unfortunately make the problem limited practically. Look also at the work of Mingotti, Russel, Topputo and other for the (C)RTBP. Smart-One inspired a bunch of researchers :)
  • Dario Izzo on 08 Jun 11
     
    Topputo and some of the others 'inspired' researchers you mention are actually here at the conference and they are all quite depressed :) Caillau really solves the problem: as a one single phase transfer, no tricks, no misconvergence, in general and using none of the usual cheats. What was produced so far by other were only local solutions valid for the particular case considered. In any case I will give him your paper, so that he knows he is working on already solved stuff :)
  • Dario Izzo on 08 Jun 11
     
    Answer to Marek: the paper you may look at is: Discrete and differential homotopy in circular restricted three-body control
  • Joris _ on 08 Jun 11
     
    Ah! with one single phase and a first order method then it is amazing (but it is still just the very particular CRTBP case). The trick is however the homotopy map he selected! Why this one? Any conjugate point? Did I misunderstood the title ? I solved in one phase with second order methods for the less restrictive problem RTBP or simply 3-body... but as a strict answer to your title the problem has been solved before. Nota: In "Russell, R. P., "Primer Vector Theory Applied to Global Low-Thrust Trade Studies," JGCD, Vol. 30, No. 2", he does solve the RTBP with a first order method in one phase.
  • Joris _ on 08 Jun 11
     
    I think what is interesting is not what he solved, but how he solved the problem. But, are means more important than end ... I dunno
  • Dario Izzo on 08 Jun 11
     
    I also loved his method, and it looked to me that is far more general than the CRTBP. As for the title of this post, OK maybe it is an exageration as it suggests that no solution was ever given before, on the other end, as Marek would say "come on guys!!!!!"
  • Joris _ on 09 Jun 11
     
    The generality has to be checked. Don't you think his choice of mapping is too specific? he doesn't really demonstrate it works better than other. In addition, the minimum time choice make the problem very regular (i guess you've experienced that solving min time is much easier than mass max, optimality-wise). There is still a long way before maximum mass+RTBP, Topputo et al should be re-assured :p Did you give him my paper, he may find it interesting since I mention the homotopy on mu but for max mass:)
  • Dario Izzo on 09 Jun 11
     
    Joris, that is the point I was excited abut, at the conference HE DID present solutions to the maximum mass problem!! One phase, from LEO to an orbit around the moon .. amazing :) You will find his presentation on line.... (according to the organizers) I gave him the reference to you paper anyway, but no pdf though as you did not upload it on our web pages and I could not find it in the web. So I gave him some bibliography I had with be from the russians, and from Russell, Petropoulos and Howell, As far as I know these are the only ones that can hope to compete with this guy!!
  • Joris _ on 09 Jun 11
     
    for info only, my phd, in one phase: http://pdf.aiaa.org/preview/CDReadyMAST08_1856/PV2008_7363.pdf I prefered Mars than the dead rock Moon though!
  • Dario Izzo on 09 Jun 11
     
    If you send me the pdf I can give it to the guy .. the link you gave contains only the first page ... (I have no access till monday to the AIAA thingy)
  • LeopoldS on 11 Jun 11
     
    this is why I like this Diigo thingy so much more than delicious ...
  • tvinko on 17 Jun 11
     
    What do you mean by this comment, Leopold? ;-) Jokes apart: I am following the Diigo thingy with Google Reader (rss). Obviously, I am getting the new postings. But if someone later on adds a comment to a post, then I can miss it, because the rss doesn't get updated. Not that it's a big problem, but do you guys have a better solution for this? How are you following these comments? (I know that if you have commented an entry, then you get the later updates in email.) (For example, in google reader I can see only the first 5 comments in this entry.)
  • LeopoldS on 18 Jun 11
     
    I like when there are discussions evolving around entries
  • LeopoldS on 18 Jun 11
     
    and on your problem with the RSS Tamas: its the same for me, you get the comments only for entries that you have posted or that you have commented on ...
jcunha

New methods to make longer streams of plasma with greater longevity could lead to laser... - 0 views

phys.org/...er-streams-plasma-greater.html

technology PHY laser filamentation space

shared by jcunha on 25 Sep 15 - No Cached
  • jcunha on 25 Sep 15
     
    More developments in the laser filamentation community. Makes me wonder again about Christophe's ideas for a space-formed filament as new and efficient microwave waveguide.
jcunha

Chemical analysis in Earth and Space via Raman Spectroscopy - 2 views

phys.org/...ical-analysis-earth-space.html

Raman chemical sensing BIO PHY space technology

shared by jcunha on 25 Sep 15 - No Cached
  • jcunha on 25 Sep 15
     
    "A new lightweight, energy-efficient tool for analyzing a material's chemical makeup could improve the detection abilities of various technologies, ranging from bomb-detecting drones to space rovers searching for signs of life". Raman Spectroscopy is about measuring vibrational modes in molecules. This vibrational modes are in the meV typically, turning Raman Spectroscopy into a high precision technique. This impressive work shows a new technique based on the use of optical fibers coupled to photomultipliers allowing its use, author's word, in extreme conditions such as unmanned aircraft vehicles (UAVs) and Mars/Moon rovers.
« First ‹ Previous 61 - 80 of 120 Next › Last »
Showing 20▼ items per page