Hye guys, I've been encountering a problem regarding collar bolts calculations. . .
Basically, I couldn't provide full threading in bolt holes of tubesheets, So I gave a proposal of collar bolts to my client. Client accepted the proposal. Then we followed the common standard already followed in
Slip Ring Motor Current When Used With VFD.
Last week , I have installed 75 kW AC drive on 55 kW slip ring motor by shorting the slip rings, for Fly wheel mechanical press application. Everything is fine but with this configuration motor is drawing current about 67 to 72 Amp, which was 45 to 50 Amps when slip ring motor was used without AC dr
Power Supply Tripping
I have a 3 phase 400vac power supply whose input is a 4 wire three phase 400ac while output is 3 phase 4 wire variable 400vac. when three phase inputs are supplied to power supply ,everything is fine .but as soon as the input neutral of power supply is connected ,then main input breaker of power sup
CSF Welcomes Recent Expressions of Growing Support for NASA’s Commercial Crew Program
Recent Statements by Senators and Representatives Underscore Importance of Program for America’s Continued Leadership in Space
Washington, D.C., Wednesday, November 2, 2011 – The Commercial Spaceflight Federation is pleased to welcome recent expressions of growing support for NASA’s Commercial Crew Program in hearings and other events held over the last week, including the following:
Rep. Ralph Hall (R-Texas), Chairman of the House Committee on Science, Space, and Technology: In a hearing last week on NASA’s Commercial Crew Program, Congressman Hall stated, “NASA’s in an emergency; our space program’s in an emergency. We can do better than those dates, I think … Somebody just needs to say… “let’s go” and I think you [commercial companies] all are the ones to do it and I hope you will.” [Oct 26]
Rep. Zoe Lofgren (D-California): In that same hearing, Congresswoman Lofgren stated, “I’ve been enthusiastically supporting this effort” and “the payoff is so enormous.” Later, Congresswoman Lofgren asked, “Is there any possibility that we could significantly reduce that timeframe [for flight] … with the private sector involvement that we have?” The companies in attendance stated they could have crew transportation capability by 2015 with sufficient support from NASA. [Oct 26]
Sen. Bill Nelson (D-Florida), Chairman of the Science and Space Subcommittee of the Senate Commerce, Science, Transportation Committee: In an event in Florida earlier this week, Senator Nelson stated, “This is just the first of much to come. You just wait until you see what’s coming here to the Kennedy Space Center in the future in the way of public/private partnerships.” He then added, “This marks the beginning of the vibrance of the economy of the Space Coast, the return of new and exciting jobs.” [Oct 31]
Rep. Sandy Adams (R-Florida): At that same event, Congresswoman Adams stated, “The Commercial Crew Development program is the best near term hope we have for getting American astronauts, on American rockets, built by an American aerospace workforce to the International Space Station. The recent failure of a Russian cargo mission highlights the problems associated with relying on foreign countries for access to the ISS. … As America takes steps towards the next chapter of space exploration, it is imperative that Congress remains vigilant in its support of the efforts of the Commercial Crew and COTS program. It is imperative that Congress ensure that they have the tools they need to be ready to carry crew to station as soon as is practically possible without sacrificing safety.” [Oct 31]
Rep. Bill Posey (R-Florida): At that same event, Congressman Posey stated, “The Commercial Crew Program represents our greatest near term hope for returning our astronauts to Low Earth Orbit and the International Space Station aboard American made vehicles. This capability will allow NASA to focus on exploring deeper into our solar system and beyond.” [Oct 31]
Video links:
Commercial Crew hearing in Congress last week: http://science.house.gov/hearing/full-committee-%E2%80%93-hearing
Florida event on Commercial Crew this week: http://www.youtube.com/watch?v=7ekh_fKK0e8&feature=related
About the Commercial Spaceflight Federation
The mission of the Commercial Spaceflight Federation (CSF) is to promote the development of commercial human spaceflight, pursue ever-higher levels of safety, and share best practices and expertise throughout the industry. The CSF’s member companies – which include commercial spaceflight developers, operators, spaceports, suppliers and service providers – are creating thousands of high-tech jobs nationwide, working to preserve American leadership in aerospace through technology innovation, and inspiring young people to pursue careers in science and engineering. For more information please visit http://www.commercialspaceflight.org or contact Executive Director John Gedmark at john@commercialspaceflight.org or at 202.349.1121.
# # #
Alexander Saltman Selected As Executive Director of the Commercial Spaceflight Federation
Founding Executive Director John Gedmark Welcomes His Successor Onboard
Washington, D.C., Thursday, November 3, 2011 – Eric Anderson, Chairman of the Board of Directors of the Commercial Spaceflight Federation, is pleased to announce that the Federation has selected Dr. Alexander Saltman as the organization’s Executive Director. Saltman is a physicist who has most recently served as the Legislative Director for Congressman Adam Schiff of California. His appointment will be effective November 14. Saltman succeeds John Gedmark, the organization’s founding Executive Director, who is departing to pursue a new opportunity.
Separately, the Commercial Spaceflight Federation is currently conducting an executive search for a new President to replace Rear Admiral Craig Steidle, who stepped down earlier this fall for medical reasons.
John Gedmark said, “I’ve had the privilege to know Alex for several years now, and he is a talented leader with a diverse technical, management, and public policy background. Alex is the perfect candidate to continue and expand the achievements of the Commercial Spaceflight Federation as we move into the industry’s next phase of development and operations.”
Alex Saltman stated, “I feel privileged to join CSF as Executive Director, where I will have the unparalleled opportunity to help create a new industry–one that will open a new frontier to Americans and people around the world. Commercial spaceflight has the potential to transform our world the way the automobile and the airplane did in years past. John Gedmark has done an outstanding job helping to create and grow this organization, and I look forward to adding to his record of accomplishment.”
Eric Anderson, Chairman of the Federation, said, “We have a very exciting future ahead for all of us in the commercial space industry. John Gedmark has assisted in building and leading this organization for the last five years, and has achieved a long list of successes. I am delighted to welcome Alex Saltman on board as our new Executive Director. His talents and the passion he shares for opening space to everyone will serve the Federation well. As commercial space vehicles begin filling the skies, the Federation will continue to become ever more important in the future of human spaceflight.”
Gedmark has served as Executive Director of the Commercial Spaceflight Federation since the organization was incorporated in 2006 and has overseen the growth of the Federation from the original 10 companies to over 50 members today. The Federation has become well-known to the press, the public, and to policymakers as a leading resource on the growing commercial spaceflight industry, and has presided over 12 CEO-level meetings of the Federation members since 2006.
During Gedmark’s tenure, the Federation played a lead role in the establishment of a number of major space policy changes and new programs, including the United States Government’s policy that commercial spaceflight providers shall be the primary means for transporting American astronauts to Earth orbit. The Federation also played a lead role in the adoption of new FAA regulations for commercial human spaceflight, the establishment of NASA’s Commercial Crew Program and Commercial Reusable Suborbital Research (CRuSR) Program, as well as funding for the FAA’s spaceport infrastructure program. In addition, state legislation on spaceflight liability has become law in Virginia, Florida, Texas, and New Mexico.
Saltman has a wide range of experience in space policy, government, and scientific research. He most recently served as the Legislative Director for Congressman Schiff, who represents an area of Southern California that includes NASA’s Jet Propulsion Laboratory, and who, as a member of the House Appropriations Committee, has been a leading figure in space policy and NASA appropriations issues. In that capacity Saltman oversaw a staff of five and led legislative efforts from conception to enactment, while advising the Congressman on science, space, energy, environment, and nonproliferation issues, as well as on relevant appropriations matters.
Saltman joined the Congressional office after receiving an American Physical Society Congressional Fellowship, having previously worked as a scientific researcher at the Stanford Linear Accelerator National Laboratory. Saltman has also worked for Wired Magazine and contributed freelance articles to the publication. A native of Texas, Saltman earned his bachelor’s degree in physics from Harvard University and his doctorate degree in physics from Stanford University.
About the Commercial Spaceflight Federation
The mission of the Commercial Spaceflight Federation (CSF) is to promote the development of commercial human spaceflight, pursue ever-higher levels of safety, and share best practices and expertise throughout the industry. The CSF’s member companies – which include commercial spaceflight developers, operators, spaceports, suppliers and service providers – are creating thousands of high-tech jobs nationwide, working to preserve American leadership in aerospace through technology innovation, and inspiring young people to pursue careers in science and engineering. For more information please visit http://www.commercialspaceflight.org or contact Executive Director John Gedmark at john@commercialspaceflight.org or at 202.349.1121.
# # #
Bedbug Repellent Being Developed by B.C. Firm
From CBC | Technology & Science News:
A Vancouver company is working to develop a scent that could drive away bedbugs.
Read the whole article
Know about Foam and Foam Board Insulation Know about Foam and Foam Board Insulation
A variety of materials like glass, foam, cellulose, aluminum foil etc are used for insulation purposes. But one of the more favored insulation materials is foam. Despite the fact that foam insulation products are costlier than other types of insulating materials, it is widely used.
Higher price may however be deemed justifiable as R-values of the foam insulations range from R-4 to R-8 per inch of thickness. This is roughly three times more than most other insulating materials of similar thickness. It is also seen that if properly installed, foam insulation is a lot more effective than the rest.
When it comes to foam insulation there can be three options - molded expanded Polystyrene (MEPS)/ extruded expanded Polystyrene (XEPS) or Polyurethane or Polyisocyanurate. Any of these should provide you with very effective insulation. Foam insulation can be done as a liquid or using factory made foam boards.
Liquid foam insulation is done either by applying from small spray containers as a liquid or by means of a pressure sprayed product for heavy duty applications. Both types expand and solidify as the chemical mixture cures. Both spray foam and foam boards are equally versatile and can be used to insulate roofs, walls, foundations, entry and overhead garage doors, pipes and tanks, under basement slabs, or over a slab-on-grade floor.
Be it any type of foam insulation, you must take care to protect it from direct sunlight as the sun's ultraviolet rays have the potential to damage them. For roofs, it’s preferable to apply a coating of tar/ acrylic/ silicone/ rubberized paint. Or else, you can also cover the foam with a rubber or plastic membrane or a layer of asphalt and roofing felt.
Foam board insulation is very effective in preventing the oppressive summer heat from penetrating into your home. It also would help you conserve energy and save on your utility bills. Foam board insulation is a rigid foam sheet, usually four by eight feet (1.2 by 2.4 m) in size, used in nearly all aspects of building construction to provide thermal resistance in floors, ceilings and walls.
Polyurethane and Polyisocyanurate foam board are very similar in content. Foam board insulation is usually placed between the exterior finish and the studs of exterior walls. To prevent air infiltration, it is necessary to place rigid insulation boards tightly together and seal the seams with tape or caulk. Polystyrene foam board insulation is done in much the same way as Polyurethane and Polyisocyanurate foam boards, except for the differences in expansion.
Please bear in mind that foam board insulation is susceptible to deterioration through exposure to sun. Though foam insulation offers no food value to insects, still insects can bore holes into it. Therefore it will be necessary for you to take appropriate precautionary measures to protect your insulation from sun and insect damage.
Foam insulation is not easily combustible but if ignited, it burns and emits dense, black, smoke containing pernicious toxic gases. Because of these inherent perils, foams used for construction will require a covering as a fire barrier.
A lot of precaution is necessary to install foam insulation. You may have to use a mask helmet and gloves. It is even advisable to cover your whole body as foam is hyper allergen and it could lead to dermatological problems. It is wiser that you hire an experienced professional to do the job as the health risk is quite high.
Source: In Order to know about the Foam Insulation Visit our website
New podcast episode for the week of October 31, 2011
The latest episode of the Sentient Developments podcast is up.
This week I discuss primal transhumanism and the seemingly contradictory trend towards ancestral health that's happening in the futurist community. To that end I address the paleo diet, functional fitness, and the importance of sleep. In the second half of the episode I discuss the recent lawsuit launched by PETA in which they accuse SeaWorld of enslaving orca whales. In this suit, PETA claims that the US Constitution backs up their claim as the 13th mention makes no mention of the kinds of persons it's set up to protect.
iTunes people can subscribe here. Or you can just subscribe to the RSS. You can download the episode directly here (mp3).
Book Presentation ‘Futurismo-Impact and Legacy’
BOOK PRESENTATION
The 2011 international conference “Our Digital Renaissance – Cultural Development, Artistic Creation & Economic Growth” will open with a book launch of the 2009 conference proceedings
Futurismo – Impact and Legacy
Thursday, November 10, 2011
Sala Rosa, Florence University of the Arts
As our historical knowledge of Futurism, its texts and personalities increases, we are now able to examine the original documents of the time in perspective. We then realize that we cannot speak of one futurism anymore, but that we must speak of many futurisms: any simplification of the
movement would not do justice to the cultural complexity of those years.The eclectic essays collected in this volume represent a testament to how far Futurism has arrived in time, space and in the imagination. In the diversity of their arguments, the works here included exemplify the different perspectives that can be taken towards the subject, well aware that, far from essentializing Futurism, we need to move towards complicating our understanding of the movement.
Please RSVP if you are interested to participate in the events as per the program and invitation hereby attached.
Please answer by Wednesday, 9 November calling 055-0332424 or sending an email to info@squolafirenze.it
Your Daily Commute Could Be Hazardous to Your Health [Health]
Whether you're crammed into a trolley car or inching your way through crosstown gridlock, getting to and from your office can often be the worst part of the work day. Now, a new study suggests that some commutes aren't worth the cost to your health. More »
How to Secure Your Beer Stash Against Freeloading Friends [Booze]
Every circle of friends has one—the guy who's only willing to chip in "a couple of bucks" for the night's keg but double fists his brews the entire evening. Well, no longer! This suds security system will only pour for authorized imbibers. More »
Roger Tallon’s 9 Most Iconic Product Designs [Design]
Watch a Music Video of Chris Brown’s "Look at Me Now" Hilariously Made with MS Paint [Video]
Tell me the first thing that pops in your head when I say: yellow bottle sipping, shit look like a toupee and suicide doors. Got it? Now watch this MS Paint-created music video of Chris Brown's "Look at Me Now". It literally translates the lyrics into MS Paint graphics. I can't stop laughing. [BuzzFeed] More »
The Massive Deep-Water Drill Rig That’s Searching for Cuban Black Gold [Video]
Despite the Deep Water Horizon fiasco, deep-water drilling remains one of the worlds' primary sources of crude. And among deep drilling rigs, this 56,860 ton Scarabeo 9 is king. More »
The Cure : Lovesong [Video]
When I heard The Cure was playing a show in LA next week, I was so excited! ...Until I also heard the show sold out in just under 45 seconds. Well shit, that's staying on my bucket list. More »
That Weird Orbit Tower In London Is Now Completed [Architecture]
Just like the rendering from last year, the now completed ArcelorMittal Orbit looks like a brain-liquifying roller coaster. Or a metal spaghetti monster twice the size of the Eiffel Tower, stranded in the rainy city, sad and confused. More »
This Week’s Top Web Comedy Video: Top Chef Dads [Video]
If you come from a household where the best thing your father knew how to make was a phone call, Top Chef: Dads is going to seem pretty familiar. And honestly, frozen jalapeño poppers? That's as haute a cuisine as I need. More »
Today’s Greatest Rap Producer Uses a Compaq Laptop and a Magazine Mousepad [Video]
Above, if you can see through all the weed smoke, you get a scene that's something like the aftermath of a bad LAN party—clutter, shitty laptops, and monitors everywhere. But music's being made in this budget-tech dungeon. More »
The Tegra 3 Is Naked [Guts]
A Janitor Accidentally Scrubbed Away a Million Dollar Art Piece [Wtf]
There are good cleaning ladies and there are bad cleaning ladies. Bad cleaning ladies? You want to avoid. Good cleaning ladies? They sometimes do bad things by being too good. Like the cleaning lady who cleaned a "dirty" art piece on accident. More »
