Spray Bars to Help Test Engine Icing
NASA – Ron Colantonio (left), manager of the Atmospheric Environment Safety Technologies Project at NASA’s Glenn Research Center in Cleveland, discussed with NASA Administrator Charlie Bolden the latest testing and research on airplane engine icing during the administrator’s February 2012 visit to the center. Colantonio showed Bolden how a large horizontal array of spray bars, such as those pictured, would emit a cloud of ice crystals in high-altitude, low pressure conditions that match those an airliner might experience in flight.
NASA scientists are mounting a research campaign using flight and ground tests to solve this aviation mystery, in which ice crystals associated with warm-weather storms can be ingested into the core of a hot jet engine, melt and then re-freeze. As larger amounts of ice build up, some of the ice can break off and cause damage inside the engine, or melt and cause the engine to lose power or shut down altogether in a flameout.
Part of the research effort involves using the spray bars to simulate the icing conditions in engines on the ground at the Propulsion Systems Laboratory at Glenn. Eventually, a full-scale engine will be mounted opposite the bar array Image Credit: NASA/Marvin Smith
- NASA Memory Lane (5) (theneteconomy.wordpress.com)
- NASA Memory Lane (4) (theneteconomy.wordpress.com)
Posted in Economic development, Economy, Technology
Tagged Aviation, Charles F. Bolden Jr., Cleveland, Glenn Research Center, Industrial economy, Low-pressure area, NASA, Technology, Test & measurement
By Sandhya Somashekhar and Nia-Malika Henderson – In narrowly backing Mitt Romney, the electorate that turned out Tuesday for Michigan’s Republican presidential primary offered a snapshot of the front-runner’s strengths and weaknesses.
Romney, who was born and raised in Michigan, performed well among declared Republicans, voters with incomes above $100,000 a year, those whose top concerns were the federal deficit and the economy, and those keen on beating President Obama in the fall.
But he fared less well among “very conservative” voters, evangelical Christians and those who strongly support the tea-party movement.
Romney’s support was weaker among working-class voters, a group that was split about evenly between Romney and his chief rival Rick Santorum. more> http://is.gd/CkZsWs
- Mitt Romney survives Michigan primary, looks to Super Tuesday, Dan Balz, Washington Post
- Mitt Romney in Michigan, Arizona: Just win, baby; Chris Cillizza, Washington Post
- ‘Operation Hilarity’ fizzles, Aaron Blake, Washington Post
- Romney survives in Michigan, eyes on Super Tuesday, Sam Youngman and Steve Holland, Reuters
- Abbreviated Pundit Round-up: Voters don’t think Santorum can win (dailykos.com)
- Breaking News: Romney Wins Michigan Primary (themoderatevoice.com)
- Arizona, Michigan primary results restore Mitt Romney as GOP front-runner (csmonitor.com)
- Team Romney: Rick Santorum’s ‘political treason’ over Democrat robocalls … – Daily Mail (dailymail.co.uk)
- Rick Santorum Asks Michigan Dems to Vote in Republican Primary (usnews.com)
- Michigan Primary Results: Romney Edges Out Santorum, Wins Arizona Too (VIDEO) (blippitt.com)
By Jean-Paul Fitoussi – THE way the Greeks and their government have been treated tells us a great deal about the way Europe is structured and the dangers that beset it. The technocratic leaders of Greece have lost the confidence of the people, who are rioting because the conditions attached to help from the rest of Europe are so stringent that Greece would be better off in the future without such “assistance.”
This is unfortunate because Europe has much better policy options. The crisis in Europe is more the consequence of an unbalanced Constitution than of an economic problem. In a nutshell, in Europe national debts are the responsibility of member nations, but the common currency is without a sovereign. more> http://is.gd/2g97uU
Posted in Banking, Economy, Leadership
Tagged Athens, Financial crisis, Government, Government debt, Greece, Industrial economy, Jean-Paul Fitoussi, Super regions, Technocracy, Travel and Tourism
R&D Mag – At this time, wireless networks are able to brake just one bike, but in the future, the technical elements will be further developed to regulate entire trains as they travel over the lines. In view of that fact, computer scientists at Saarland University are designing mathematical calculations to check such systems automatically.
Professor Holger Hermanns, who holds the chair of Dependable Systems and Software, and who developed the wireless bicycle brake together with his group, explains: “Wireless networks are never a fail-safe method. That’s a fact that’s based on a technological background.” Nonetheless, the trend is to set up wireless systems that, like a simple bicycle brake, have to function all the time. more> http://is.gd/3QFywz
Posted in Net, Product, Technology, Transportation
Tagged Business, Business improvement, Data Communications, Dependability, Electronics, Holger Hermanns, Saarland University, Telecommunications, Test & measurement, Wireless network
By Larry Downes – With new legislation authorizing incentive spectrum auctions, it’s tempting to think the crisis in mobile broadband has been avoided. But it will take at least 10 years to put new spectrum to work, and the FCC‘s own estimate is that we have only three years left before hitting the wall.
Barely a blip a few years ago, mobile broadband is growing at an astronomical pace. AT&T reports that since offering the iPhone on its networks in 2007, data volumes had increased by 8,000 percent by 2010. According to a report last week from the White House Council of Economic Advisers (PDF), mobile data traffic will increase twenty-fold between 2010 and 2015. more> http://is.gd/9lA9He
Posted in Broadband, Net, telecom
Tagged AT&T, Broadband, FCC, Federal Communications Commission, Internet, iPhone, Mobile broadband, Spectrum, Spectrum auction, Wireless
On Feb. 27, 2012.
NASA Announces Chair of New
Mars Program Planning Group
NASA – NASA’ s associate administrator for the Science Mission Directorate, John Grunsfeld, has named former veteran NASA program manager Orlando Figueroa to lead a newly established Mars Program Planning Group (MPPG) tasked to reformulate the agency’s Mars Exploration Program.
Grunsfeld made the announcement at an annual gathering of Mars scientists and engineers in Dulles, Va. Figueroa, a consultant with more than 30 years of aerospace experience, will lead the scientific and technical team to develop an integrated strategy for NASA’s Mars Exploration Program in light of current funding constraints. The team’s initial focus will be on a possible 2018-2020 robotic mission. more> http://is.gd/0fADHg
Posted in Leadership, Science, SPACE WATCH, Technology, Transportation
Tagged ExoMars, John M. Grunsfeld, Mars, Mars Exploration, Mars Exploration Program, NASA, Orlando Figueroa, Science Mission Directorate, Space, United States
By Terra Lawson-Remer – The G20 group was elevated from finance ministers to heads of state to quickly coordinate a decisive response in the face of the global economic crisis in 2008; and effective action required a forum that included China and other important emerging economies, as the former G7/8 club could no longer really call the shots.
The main threat to the G20’s effectiveness is its lack of domestic legitimacy within member countries. The group is widely perceived by the public as transnational elites hatching plans behind closed doors in insulated centers of power. Without genuine ex ante engagement to build trust and support with diverse domestic constituencies — labor, business, civil society, and the members of parliaments and congresses that purportedly represent these different interests — leaders will never have the space within the G20 to negotiate meaningful agreements. Finance ministers and heads of state now come to the table with their hands tied, their positions determined in advance by their governments and a formal script that precludes meaningful and creative compromises. more> http://is.gd/Sbukt0
Posted in Business, Economy, Leadership
Tagged China, Eurozone, Finance minister, G-20 major economies, Government, Industrial economy, International Monetary Fund, Mexico City, Super regions, World economy