Skip to main content

Home/ Advanced Concepts Team/ Group items tagged capture

Rss Feed Group items tagged

Filter: All | Bookmarks | Topics Simple Middle
Marcus Maertens

Five (Theoretical) Ways to Capture a Star - 2 views

www.fromquarkstoquasars.com/-theoretical-ways-capture-star

science PHY space

shared by Marcus Maertens on 30 Sep 14 - No Cached
  • Marcus Maertens on 30 Sep 14
     
    Lets capture a star, shall we?
Luís F. Simões

Shell energy scenarios to 2050 - 6 views

www.shell.com/...shell_energy_scenarios_2050

energy future forecast politics economy climate_change

shared by Luís F. Simões on 09 Mar 11 - No Cached
  • Luís F. Simões on 09 Mar 11
     
    just in case you were feeling happy and optimistic
  • ...7 more comments...
  • Francesco Biscani on 09 Mar 11
     
    An energy scenario published by an oil company? Allow me to be sceptical...
  • Joris _ on 10 Mar 11
     
    Indeed, Shell is an energy company, not just oil, for some time now ... The two scenarii are, in their approach, dependant of economic and political situation, which is right now impossible to forecast. Reference to Kyoto is surprising, almost out-dated! But overall, I find it rather optimistic at some stages, and probably the timeline (p37-39) is unlikely with recent events.
  • Luís F. Simões on 10 Mar 11
     
    the report was published in 2008, which explains the reference to Kyoto, as the follow-up to it was much more uncertain at that point. The Blueprint scenario is indeed optimistic, but also quite unlikely I'd say. I don't see humanity suddenly becoming so wise and coordinated. Sadly, I see something closer to the Scramble scenario as much more likely to occur.
  • LeopoldS on 12 Mar 11
     
    not an oil company??? please have a look at the percentage of their revenues coming from oil and gas and then compare this with all their other energy activities together and you will see very quickly that it is only window dressing ... they are an oil and gas company ... and nothing more
  • Joris _ on 14 Mar 11
     
    not JUST oil. From a description: "Shell is a global group of energy and petrochemical companies." Of course revenues coming from oil are the biggest, the investment turnover on other energy sources is small for now. Knowing that most of their revenues is from an expendable source, to guarantee their future, they invest elsewhere. They have invested >1b$ in renewable energy, including biofuels. They had the largest wind power business among so-called "oil" companies. Oil only defines what they do "best". As a comparison, some time ago, Apple were selling only computers and now they sell phones. But I would not say Apple is just a phone company.
  • LeopoldS on 14 Mar 11
     
    window dressing only ... e.g. Net cash from operating activities (pre-tax) in 2008: 70 Billion$ net income in 2008: 26 Billion revenues in 2008: 88 Billion Their investments and revenues in renewables don't even show up in their annual financial reports since probably they are under the heading of "marketing" which is already 1.7 Billion $ ... this is what they report on their investments: Capital investment, portfolio actions and business development Capital investment in 2009 was $24 billion. This represents a 26% decrease from 2008, which included over $8 billion in acquisitions, primarily relating to Duvernay Oil Corp. Capital investment included exploration expenditure of $4.5 billion (2008: $11.0 billion). In Abu Dhabi, Shell signed an agreement with Abu Dhabi National Oil Company to extend the GASCO joint venture for a further 20 years. In Australia, Shell and its partners took the final investment decision (FID) for the Gorgon LNG project (Shell share 25%). Gorgon will supply global gas markets to at least 2050, with a capacity of 15 million tonnes (100% basis) of LNG per year and a major carbon capture and storage scheme. Shell has announced a front-end engineering and design study for a floating LNG (FLNG) project, with the potential to deploy these facilities at the Prelude offshore gas discovery in Australia (Shell share 100%). In Australia, Shell confirmed that it has accepted Woodside Petroleum Ltd.'s entitlement offer of new shares at a total cost of $0.8 billion, maintaining its 34.27% share in the company; $0.4 billion was paid in 2009 with the remainder paid in 2010. In Bolivia and Brazil, Shell sold its share in a gas pipeline and in a thermoelectric power plant and its related assets for a total of around $100 million. In Canada, the Government of Alberta and the national government jointly announced their intent to contribute $0.8 billion of funding towards the Quest carbon capture and sequestration project. Quest, which is at the f
  • Joris _ on 14 Mar 11
     
    thanks for the info :) They still have their 50% share in the wind farm in Noordzee (you can see it from ESTEC on a clear day). Look for Shell International Renewables, other subsidiaries and joint-ventures. I guess, the report is about the oil branch. http://sustainabilityreport.shell.com/2009/servicepages/downloads/files/all_shell_sr09.pdf http://www.noordzeewind.nl/
  • LeopoldS on 16 Mar 11
     
    no - its about Shell globally - all Shell .. these participations are just peanuts please read the intro of the CEO in the pdf you linked to: he does not even mention renewables! their entire sustainability strategy is about oil and gas - just making it (look) nicer and environmentally friendlier
  • Joris _ on 16 Mar 11
     
    Fair enough, for me even peanuts are worthy and I am not able to judge. Not all big-profit companies, like Shell, are evil :( Look in the pdf what is in the upstream and downstream you mentionned above. Non-shell sources for examples and more objectivity: http://www.nuon.com/company/Innovative-projects/noordzeewind.jsp http://www.e-energymarket.com/news/single-news/article/ferrari-tops-bahrain-gp-using-shell-biofuel.html thanks.
Luke O'Connor

Astronomer Captures Enormous True-Color Photo of Night Sky - 4 views

freepress.intel.com/...-true-color-photo-of-night-sky

shared by Luke O'Connor on 18 Nov 11 - No Cached
  • Luke O'Connor on 18 Nov 11
     
    And some interactive versions: http://skysurvey.org/
  • LeopoldS on 22 Nov 11
     
    this is very very nice! thanks for sharing
johannessimon81

Asteroid break-up captured on film for the first time - 1 views

www.theguardian.com/...k-up-captured-film-nasa-hubble

science

shared by johannessimon81 on 07 Mar 14 - No Cached
  • johannessimon81 on 07 Mar 14
     
    Probably related to the former ACT study on asteroid spin-up and the YORP effect.
LeopoldS

Norwegian Skydiver Almost Gets Hit by Falling Meteor - and Captures it on Film - 1 views

www.universetoday.com/...meteor-and-captures-it-on-film

NEO meteorite

shared by LeopoldS on 10 Apr 14 - No Cached
  • LeopoldS on 10 Apr 14
     
    apparently first time that somebody filmed a meteorite falling after the luminous phase .... impressive pics
  • Luís F. Simões on 10 Apr 14
     
    I've seen someone suggest it could have been a rock that ended up inside the parachute bag when it was folded, and then fell when the parachute was deployed.
Chritos Vezyri

New fabrication technique could provide breakthrough for solar energy systems - 3 views

www.nanowerk.com/...newsid=29256.php

Energy wireless power transimision

shared by Chritos Vezyri on 01 Mar 13 - No Cached
LeopoldS liked it
  • Chritos Vezyri on 01 Mar 13
     
    The principle behind that is Nantenna.
  • LeopoldS on 02 Mar 13
     
    this is fantastic!!!! waiting of somebody to make this happen since years The size of the gap is critical because it creates an ultra-fast tunnel junction between the rectenna's two electrodes, allowing a maximum transfer of electricity. The nanosized gap gives energized electrons on the rectenna just enough time to tunnel to the opposite electrode before their electrical current reverses and they try to go back. The triangular tip of the rectenna makes it hard for the electrons to reverse direction, thus capturing the energy and rectifying it to a unidirectional current. Impressively, the rectennas, because of their extremely small and fast tunnel diodes, are capable of converting solar radiation in the infrared region through the extremely fast and short wavelengths of visible light - something that has never been accomplished before. Silicon solar panels, by comparison, have a single band gap which, loosely speaking, allows the panel to convert electromagnetic radiation efficiently at only one small portion of the solar spectrum. The rectenna devices don't rely on a band gap and may be tuned to harvest light over the whole solar spectrum, creating maximum efficiency. Through atomic layer deposition, Willis has shown he is able to precisely coat the tip of the rectenna with layers of individual copper atoms until a gap of about 1.5 nanometers is achieved. The process is self-limiting and stops at 1.5 nanometer separation The size of the gap is critical because it creates an ultra-fast tunnel junction between the rectenna's two electrodes, allowing a maximum transfer of electricity. The nanosized gap gives energized electrons on the rectenna just enough time to tunnel to the opposite electrode before their electrical current reverses and they try to go back. The triangular tip of the rectenna makes it hard for the electrons to reverse direction, thus capturing the energy and rectifying it to a unidirectional current. Impressively, the rectennas, because of th
santecarloni

[1105.1293] Eigengestures for natural human computer interface - 1 views

arxiv.org/1105.1293

bio technology

shared by santecarloni on 10 May 11 - No Cached
  • santecarloni on 10 May 11
     
    We present the application of Principal Component Analysis for data acquired during the design of a natural gesture interface. We investigate the concept of an eigengesture for motion capture hand gesture data and present the visualisation of principal components obtained in the course of conducted experiments. We also show the influence of dimensionality reduction on reconstructed gesture data quality.
santecarloni

Air Power: New Device Captures Ambient Electromagnetic Energy to Drive Small ... - 2 views

gtresearchnews.gatech.edu/device-captures-ambient-energy

Power electromagnetic technology

shared by santecarloni on 08 Jul 11 - No Cached
  • LeopoldS on 09 Jul 11
     
    article written a bit as if they had invented rectennas ... they are used since the 60s (Brown powered a small helicopter via 2.45 GHz ... and Kaya-san has showed wireless power transmission via advanced rectenna's at almost every SPS conference since 20 years ...
LeopoldS

NIAC 2014 Phase I Selections | NASA - 4 views

www.nasa.gov/...niac-2014-phase-i-selections

advanced NASA NIAC concepts

shared by LeopoldS on 05 Jun 14 - No Cached
  • LeopoldS on 05 Jun 14
     
    12 new NIAC 1 studies - many topics familiar to us ... please have a look at those closest to your expertise to see if there is anything new/worth investigating (and in general to be knowledgeable on them since we will get questions sooner or later on them)
    Principal Investigator Proposal Title Organization City, State, Zip Code
    Atchison, Justin Swarm Flyby Gravimetry Johns Hopkins University Baltimore, MD 21218-2680
    Boland, Eugene Mars Ecopoiesis Test Bed Techshot, Inc. Greenville, IN 47124-9515
    Cash, Webster The Aragoscope: Ultra-High Resolution Optics at Low Cost University of Colorado Boulder, CO 80309-0389
    Chen, Bin 3D Photocatalytic Air Processor for Dramatic Reduction of Life Support Mass & Complexity NASA ARC Moffett Field, CA 94035-0000
    Hoyt, Robert WRANGLER: Capture and De-Spin of Asteroids and Space Debris Tethers Unlimited Bothel, WA 98011-8808
    Matthies, Larry Titan Aerial Daughtercraft NASA JPL Pasadena, CA 91109-8001
    Miller, Timothy Using the Hottest Particles in the Universe to Probe Icy Solar System Worlds John Hopkins University Laurel, MD 20723-6005
    Nosanov, Jeffrey PERISCOPE: PERIapsis Subsurface Cave OPtical Explorer NASA JPL Pasadena, CA 91109-8001
    Oleson, Steven Titan Submarine: Exploring the Depths of Kraken NASA GRC Cleveland, OH 44135-3127
    Ono, Masahiro Comet Hitchhiker: Harvesting Kinetic Energy from Small Bodies to Enable Fast and Low-Cost Deep Space Exploration NASA JPL Pasadena, CA 91109-8001
    Streetman, Brett Exploration Architecture with Quantum Inertial Gravimetry and In Situ ChipSat Sensors Draper Laboratory Cambridge, MA 02139-3539
    Wiegmann, Bruce Heliopause Electrostatic Rapid Transit System (HERTS) NASA MSFC Huntsville, AL 35812-0000
  • annaheffernan on 11 Jun 14
     
    Eh, the swarm flyby gravimetry is very similar to the "measuring gravitational fields" project I proposed in the brewery
Paul N

Researchers can now convert CO2 from the air directly into methanol fuel - 2 views

www.sciencealert.com/o2-directly-into-methanol-fuel

science NRG

shared by Paul N on 29 Jan 16 - No Cached
LeopoldS liked it
  • Paul N on 29 Jan 16
     
    For the first time, researchers have shown that they can capture CO2 from the air, and convert it directly into methanol, which can then be used as an alternative fuel, as well as for hydrogen storage, in fuel cells, or as a building block for plastic.
  • Paul N on 29 Jan 16
     
    Solar power to suck out co2 during the day and make it fuel finally solves global warming?
LeopoldS

This 'personal carbon sequestration' device uses algae to capture CO2 - 3 views

www.fastcompany.com/...vice-uses-algae-to-capture-co2

bio

shared by LeopoldS on 20 Sep 19 - No Cached
richbee liked it
  • LeopoldS on 20 Sep 19
     
    for our new office?
johannessimon81

New Metamaterial Camera Has Super-Fast Microwave Vision - 1 views

www.wired.com/...new-metamaterial-camera

technology science PHY

shared by johannessimon81 on 18 Jan 13 - No Cached
LeopoldS liked it
  • johannessimon81 on 18 Jan 13
     
    "The metamaterial aperature is only 40 centimeters long and it doesn't move. It's a circuit-board-like structure consisting of two copper plates separated by a piece of plastic. One of the plates is etched with repeating boxy structures, units about 2 millimeters long that permit different lengths of microwaves to pass through. Scanning the scene at various microwave frequencies allows the computer to capture all the information necessary to reproduce a scene."
  • LeopoldS on 19 Jan 13
     
    where is Luzi's comment when one needs it ???
Wiktor Piotrowski

Doomed Spacecraft Captures Awesome Close-Up Video of the Moon | Wired Science | Wired.com - 3 views

www.wired.com/...grail-moon-flyover

space

shared by Wiktor Piotrowski on 05 Feb 13 - No Cached
  • Wiktor Piotrowski on 05 Feb 13
     
    The Moon's surface from 6 miles up!
Joris _

International Space Apps Challenge - 3 views

spaceappschallenge.org/solutions

INF technology innovation

shared by Joris _ on 24 Apr 12 - No Cached
  • Joris _ on 24 Apr 12
     
    The International Space Apps Challenge is now over, it is interesting to have a look at the solutions ...
  • ...1 more comment...
  • LeopoldS on 25 Apr 12
     
    can't find much interesting in the list ...
  • LeopoldS on 25 Apr 12
     
    what sort of "app" is this e.g. http://spaceappschallenge.org/challenge/brightest-night/solution/132 "We started of by trying to set our camera in raw mode, howsoever this can't be done for current logitech modules and without a high risk of permanently destroying the camera (reflashing the EEPROM). we use a logitech c920 and captured a raw image from it using guvcview on ArchLinux we then wrote some python code to calculate the average BGR value of our Image. We are currently workin on automiztion, but this will take much longer as there will be a lot of reverse engineering of the USB-Protocol needed."
  • Joris _ on 26 Apr 12
     
    c'mon really! To name a few: - Tour of the Solar System ... that is one of the numerous specialities of the ACT. - Satellite data correlation tool ... solution is flawed, but I really like the idea. Lot of added value. I definitely think are interestung stuffs to do there for cheap. - Aurora project: Model & Data ... space weather not interesting?! - Kepler ... a classic Do not expect the solutions to be tremendous just after 3 days of work, but the proposed list of challenges are "seeds" for innovation to me.
Lionel Jacques

Solar energy-harvesting "nanotrees" could produce hydrogen fuel on a mass scale - 1 views

www.gizmag.com/...21769

NRG

shared by Lionel Jacques on 09 Mar 12 - No Cached
  • Lionel Jacques on 09 Mar 12
     
    "... they are looking to use the nanotree structure to mimic photosynthesis in a device that not only harnesses the power of the sun to produce hydrogen fuel, but also captures CO2 from the atmosphere to reduce carbon emissions at the same time."
LeopoldS

GTOC problem announced! - 0 views

"This year's problem is the global mapping of Jupiter's Galilean satellites, Io, Europa, Ganymede, and Callisto, by means of close flybys. A trajectory must be designed for a low-thrust spacecraft ...

Mas ai

started by LeopoldS on 10 Sep 12 no follow-up yet
1 - 20 of 47 Next › Last »
Showing 20▼ items per page